TWI680034B - Torque wrench structure - Google Patents

Abstract

The invention relates to a torque wrench structure, which comprises: a first receiving body is provided with a first receiving groove; a second receiving body is provided with a second receiving groove; an adjusting member is provided in the first receiving body; In the groove, one end of the adjusting member is provided with a head, the head is accommodated in the second reservoir, and the head is provided with a third reservoir; an elastic group is accommodated in the second notebook. Inside the body, the elastic assembly includes an elastic element and a top abutment; the elastic element is accommodated in the second receptacle; the abutment is accommodated in the second receptacle; the abutment is The plurality of first rotation systems are accommodated at the third accommodation groove, and the plurality of first rotation systems are abutted between the third accommodation groove and the top abutment.

Description

Torque wrench structure

The invention relates to a torque wrench structure, in particular to a torque wrench structure provided with a plurality of first rotating bodies, the plurality of first rotating systems rolling between the adjusting member and the abutting member, so that the adjusting member and the The rolling friction of the plurality of first rotating bodies between the abutment members can reduce the wear.

According to my previous knowledge, the conventional torque wrench structure is also a patent case that I have been assigned, such as US patent case number: US8863624B2, Taiwan patent case application number: 103215530, certificate number: M492808, patent name: with locking device The torque wrench, the patent structure is: a torque wrench with a locking device, which includes: a hollow main rod body 10 having a first end 11 and a second end 12, the second end 12 The outer periphery is provided with a plurality of positioning grooves 13 arranged axially; a tool member 20 is passed through the first end 11 of the main rod body 10; an adjustment grip 30 is provided with an adjustment screw member 31. The adjusting screw 31 can be screwed at the second end 12 of the main rod body 10; a torque adjusting elastic member 40 is set in the main rod body 10 and abuts against the adjusting screw 31 At the end; a clutch assembly 50 is provided between the torque adjusting elastic member 40 and the tool member 20, and can be subjected to the clutch action by the abutment of the torque adjusting elastic member 40; and a locking device 60 is provided At the outer periphery of the second end 12 of the main rod body 10, and in a locked position and an unlocked position A relative axial movement occurs between the positions along the main rod body 10, wherein the locking device 60 includes: a metal locking ring 61 sleeved on the second end 12 of the main rod body 10 and the Adjust the grip of the grip 30 A receiving groove 611 is provided on one end of the inner side wall surface of the locking ring 61, and an axially extending thrust surface 612 is provided on one side of the receiving groove 611; a compression spring 62 is provided on the locking ring 61 and The adjusting grip 30 is between the adjusting ring 30 and the supporting ring 61 in a normal state; a ring groove 614 is provided on the other end of the inner wall surface of the locking ring 61; a metal C-shaped buckle 63 is provided on the locking ring 61; The end of the adjustment grip 30 is used to selectively engage the ring groove 614; at least one perforation 64 is provided on the periphery of the adjustment grip 30; and at least one metal positioning bead 65 is provided on the perforation 64. When in the locked position, the positioning bead 65 is pushed by the abutting surface 612 and can be pressed against the positioning groove 13 to restrict the rotation of the adjustment grip 30 relative to the main rod body 10. When in the non-locking position, the C-shaped buckle 63 is engaged with the ring groove 614, so that the positioning bead 65 can be moved between the receiving groove 611 and the positioning groove 13, so that the adjustment grip 30 can be rotated relative to the main lever body 10, and the locking ring 61 can emit a sound when adjusting and switching between the locked position and the non-locked position.

However, the lack of the conventional torque wrench structure lies in:

1. Please supplement Figure 4 of the US Gazette. When the user rotates the adjustment grip 30 relative to the main lever body 10 to adjust the torque value of the torque wrench, the adjustment screw 31 is attached to the first A screw-rotation motion occurs at the two ends 12, and when the adjusting screw 31 rotates, and the abutting member 41 is a non-rotating structure, the adjusting screw 31 will rotate with the end of the abutting member 41. And, the elastic member 40 of the adjusting elastic member 40 is pressed against the other end of the pressing member 41, that is, under the rotary friction and the elastic force of the adjusting elastic member 40, after long-term use, the pressing member 41 or The abrasion of the adjusting screw 31 is in contact with the two. And when the torque value is adjusted to a larger value, the adjustment elastic member 40 is more compressed, that is, when the elastic restoring force is greater, the adjustment screw 31 is subject to greater force and abrasion at the contact portion with the abutment member 41. That is bigger.

2. Please supplement it as shown in the fourth figure. In order to reduce the abrasion of the end of the abutment member 41, the end of the abutment member 41 is convex. The abutment member 41 and the adjustment screw 31 are Only the point contact state, the mutual friction rate between the two is reduced, but the point contact shape still has friction, and after a period of time, the protruding shape of the end of the abutment member 41 will gradually be rubbed away. Between the screw member 31 and the abutment member 41, a surface contact is gradually formed, and in a state of tolerance due to limited processing, point contact will make the abutment member 41 and the adjustment screw 31 inaccurate. The top member 41 is skewed, which causes another defect.

In view of the lack of the conventional structure mentioned above, the inventor has, through years of experience in manufacturing, production, and design in related industries, finally came up with a product that can solve the disadvantages of the conventional torque wrench structure.

In the conventional torque wrench structure, under rotary friction and under the elastic force of the adjusting elastic member, after a long-term use, it is easy to cause wear on the contact portion of the pressing member or the adjusting screw. The torque wrench structure of the present invention is provided with a plurality of first rotating bodies, and the plurality of first rotating systems roll between the third receiving groove and the abutting member, so that the adjusting member and the abutting member have the plurality of first rotating bodies. The rolling friction of the rotating body can reduce the wear of the adjusting member and the abutting member.

The invention relates to a torque wrench structure, which includes: a first receiving body is provided with a first receiving groove; a second receiving system is pivoted with the first body and is provided with a second receiving groove; an adjustment A piece is accommodated in the first accommodation groove, one end of the adjusting piece is provided with a head, the head is accommodated at the second accommodation groove, and a third accommodation groove is attached at the head; an elasticity The system is accommodated in the second body, and the elastic system includes an elastic element and a The abutment piece is accommodated in the second receptacle; the abutment piece is accommodated in the second receptacle; the abutment piece is disposed between the adjusting member and the elastic element; a plurality of A first rotating system is accommodated at the third receiving tank, and the plurality of first rotating systems are abutted between the third receiving tank and the abutting member.

The plurality of first rotating systems are accommodated at the third receiving groove of the adjusting member, and each first rotating system abuts between the third receiving groove and the abutting member, when the first body is opposed to the second body When rotating to adjust the overall torque value of the torque wrench structure, the first system simultaneously drives the adjustment member to rotate and displace, and the plurality of first rotation systems roll between the third receiving groove and the abutting member, so that the The rolling friction of the plurality of first rotating bodies between the head of the adjusting member and the abutting member can reduce the abrasion of the adjusting member and the abutting member. The plurality of first rotating bodies are arranged in a ring shape with respect to the axis, so that the head of the adjusting member and the plurality of first rotating bodies are in multi-point contact, and the abutting member and the plurality of first rotating bodies are in contact. There are also multiple points of contact between the rotating bodies, and the adjusting member and the abutment member can have a better force balance structure through the plurality of first rotating bodies.

In order to fully understand the effects of the present invention by members of the Bureau and those skilled in the art, the structure and composition of the present invention are explained in conjunction with the drawings and figures, but the following are only used to explain the implementation of the present invention. For example, it is not intended to limit the present invention in any form, and any modification made under the spirit of the present invention should still fall within the protection scope of the present invention.

10‧‧‧First Body

11‧‧‧ the first tank

20‧‧‧Second Ontology

21‧‧‧Driver

22‧‧‧Second Volume

30‧‧‧Adjustment

31‧‧‧Head

32‧‧‧ Third tank

321‧‧‧first perforation

322‧‧‧second perforation

33‧‧‧Fourth tank

40‧‧‧Flexible group

41‧‧‧Elastic element

42‧‧‧Top arrival

421‧‧‧ convex

422‧‧‧Fifth tank

50‧‧‧first rotating body

60‧‧‧Second rotating body

The first figure is an exploded perspective view of the torque wrench structure of the present invention.

The second figure is a perspective assembled view of the torque wrench structure of the present invention.

The third figure is a top view of the torque wrench structure of the present invention.

The fourth figure is a sectional view at the third figure B-B of the present invention.

The fifth figure is an enlarged view of the fourth figure C of the present invention.

The sixth figure is an exploded perspective view of the second embodiment of the present invention.

The seventh figure is an enlarged sectional view of a second embodiment of the present invention.

The eighth figure is an exploded perspective view of the third embodiment of the present invention.

The ninth figure is a cross-sectional enlarged view of a third embodiment of the present invention.

The tenth figure is a perspective view of the abutment member of the fourth embodiment of the present invention.

FIG. 11 is an enlarged sectional view of a fourth embodiment of the present invention.

The twelfth figure is an exploded perspective view of the fifth embodiment of the present invention.

The thirteenth figure is an exploded perspective view of a sixth embodiment of the present invention.

The fourteenth figure is an exploded perspective view of some elements of the sixth embodiment of the present invention.

First, please refer to the first figure. The first figure is an exploded perspective view of the torque wrench structure of the present invention. The present invention relates to a torque wrench structure, which includes: a first body 10, the first body 10 is a circle In the shape of a rod, a grip is sleeved at one end of the first body 10 for holding, and a first receiving groove 11 is formed in the first body 10, and the first receiving groove 11 is in the shape of a circular groove; Two bodies 20, the second body 20 is pivoted with the first body 10, the first body 10 is rotatable and displaceable relative to the second body 20, and one end of the second body 20 is provided A driving part 21 is exposed from the first body 10, and the driving part 21 is a ratchet wrench structure, an open-end wrench structure, or any rotating structure with a four-cornered head. The second body 20 A second receiving groove 22 is provided in the interior. The second receiving groove 22 is in communication with the first receiving groove 11 of the first body 10, and the opening of the second receiving groove 22 is far from the driving portion 21. The second receiving groove 22 is in the shape of a circular groove; an adjusting member 30 is accommodated in the first receiving groove 11 of the first body 10, and when the user rotates the first body 10, When the first body 10 is rotated and displaced relative to the second body 20, the first body 10 simultaneously drives the adjustment member 30 to rotate and displace. One end of the adjustment member 30 is provided with a head 31, and the head 31 is It is accommodated in the second receiving groove 22 of the second body 20, and a third receiving groove 32 is provided at the head 31. The third receiving groove 32 is a concave ring groove, and the third receiving groove 32 The axis is the axis of the adjusting member 30, and the third receiving groove 32 is in the shape of a concave arc; an elastic group 40 is accommodated in the second body 20, and the elasticity The group 40 includes an elastic element 41 and a pressing member 42. The elastic element 41 is housed in the second receiving groove 22. When the adjusting member 30 rotates and is displaced, the adjusting member 30 will actuate the elastic member. The length of 41 is used to adjust the torque value of the torque wrench structure; the abutment member 42 is housed in the second receiving groove 22, and the abutment member 42 is housed between the adjustment member 30 and the elastic element 41. The abutting member 42 is abutted on the elastic element 41. The abutting member 42 is provided with a convex portion 421 which is relatively positive to the head 31. The convex portion 421 is a convex arc surface; The first rotating body 50 is accommodated at the third receiving groove 32 of the adjusting member 30, and the plurality of first rotating bodies 50 are abutting against the third receiving groove 32 and the top. Between the pieces 42, each first rotating body 50 is capable of rolling at the third receiving groove 32 and being displaced around the axis of the adjusting member 30. The plurality of first rotating bodies 50 are based on the axis of the adjusting member 30. The heart is arranged in a ring shape. Each first rotating body 50 is a bead or a roller. The rigidity of the first rotating body 50 may be less than that of the adjusting member 30 and the abutting member 42. The portion 421 is accommodated between the plurality of first rotating bodies 50; when the first body 10 is rotated relative to the second body 20 to adjust the torque value, the first body 10 drives the adjusting member 30 to rotate and displace, The plurality of first rotating bodies 50 rotate freely at the third receiving groove 32 and automatically shift around the path of the third receiving groove 32, so that the plurality of first rotating bodies 50 and the adjusting member 30 and the plurality of first A rotating body 50 and the abutting member 42 have the function of rolling friction.

Please refer to the second to fifth figures. The second figure is a perspective view of the torque wrench structure of the present invention, the third figure is an upper view of the torque wrench structure of the present invention, and the fourth figure is the third figure BB of the present invention. In the cross-sectional view, the fifth figure is an enlarged view of the fourth figure C of the present invention. As can be clearly shown from the figure, the second body 20 is pivoted with the first body 10, and the first body 10 is opposite The second body 20 is rotated to adjust the overall torque value. The adjusting member 30 is disposed in the first receiving groove 11 and the second receiving groove 22. When the first body 10 rotates, the second body 20 drives the same. The adjusting member 30 is rotated and displaced. The elastic group 40 is accommodated in the second receiving groove 22 of the second body 20, and the convex portion 421 is aligned with the head 31 of the adjusting member 30. The plural first The rotating body 50 is accommodated at the third receiving groove 32, and the first rotating body 50 is abutted between the third receiving groove 32 and the abutting member 42. When the adjusting member 30 is displaced by rotation, the plurality of first The rotating body 50 rolls between the third receiving groove 32 and the abutting member 42.

Please continue to refer to the sixth and seventh figures, which is the second embodiment of the present invention The third exploded view of the example, the seventh figure is a cross-sectional enlarged view of the second embodiment of the present invention, which can be clearly shown from the diagram. The third container 32 is inclined, that is, the third container 32 Connecting the end surface and the outer peripheral surface of the head 31, the third receiving groove 32 is open, and the first rotating body 50 abuts against the third receiving groove 32, the pressing member 42 and the second receiving groove. In the inner peripheral surface of 22, when the plurality of first rotating bodies 50 abut against the inner peripheral surface of the second receiving groove 22, the adjusting member 30 can assist the alignment of the axis of the second receiving groove 22.

Please continue to refer to the eighth and ninth diagrams. The eighth diagram is an exploded perspective view of the third embodiment of the present invention, and the ninth diagram is an enlarged sectional view of the third embodiment of the present invention. A fourth accommodating groove 33 is provided on the outer peripheral surface of the head 31. The fourth accommodating groove 33 is a concave annular groove, and is provided with a plurality of second rotating bodies 60, and the plurality of second rotating bodies 60 are accommodated in the At the fourth receiving groove 33, the plurality of second rotating bodies 60 are arranged in a ring shape, and the plurality of second rotating bodies 60 abut against the inner peripheral surface of the second receiving groove 22 and the fourth receiving groove 33. When the adjusting member 30 is rotated and displaced, the plurality of second rotating bodies 60 are rolled between the second receiving groove 22 and the fourth receiving groove 33. The plurality of second rotating bodies 60 can assist the adjusting member 30. Aligning the axis of the second volume 22, each of the second rotating bodies 60 has a bead shape or a roller shape, and the diameter of the second rotating body 60 is smaller than the diameter of the first rotating body 50.

Please continue to refer to the tenth and eleventh diagrams. The tenth diagram is a perspective view of the abutment member 42 of the fourth embodiment of the present invention, and the eleventh diagram is an enlarged sectional view of the fourth embodiment of the present invention. It can be clearly shown that one end of the abutting member 42 is provided with a fifth receiving groove 422, and the fifth receiving groove 422 is relatively orthogonal to the third receiving groove 32 of the adjusting member 30, and the fifth receiving groove 422 The fifth receiving groove 422 is a concave arc groove, the fifth receiving groove 422 is wound around the convex portion 421, and the plurality of first rotating bodies 50 are received against the first receiving body 421. Between the three receiving slots 32 and the fifth receiving slot 422, when the adjusting member When the rotation displacement is 30, the plurality of first rotating bodies 50 roll between the third receiving groove 32 and the fifth receiving groove 422.

Please refer to the twelfth figure. The twelfth figure is an exploded perspective view of the fifth embodiment of the present invention. The third receiving grooves 32 are in a plurality of shapes, and each third receiving groove 32 is a concave arc groove The plurality of third receiving grooves 32 are arranged in a ring shape, and each third receiving groove 32 is used for receiving each first rotating body 50.

Please continue to refer to the thirteenth and fourteenth figures. The thirteenth figure is an exploded perspective view of the sixth embodiment of the present invention, and the fourteenth figure is an exploded perspective view of some elements of the sixth embodiment of the present invention. As can be clearly shown from the figure, the third receiving groove 32 is in the shape of a single element, the third receiving groove 32 is in the shape of a round base, the number of the third receiving grooves 32 is two, and the two third The receiving grooves 32 are oppositely arranged. The second and third receiving grooves 32 are provided between the adjusting member 30 and the abutting member 42. The plurality of first rotating bodies 50 are provided between the second and third receiving grooves 32. The third holding groove 32 is provided with a first perforation 321, and the first perforation 321 is provided at the center of the third holding groove 32, and the first perforation 321 is provided near the abutting piece 42 of the third holding groove 32. A perforation 321 is provided for the convex portion 421 to be compatible. The third receiving groove 32 is provided with a plurality of second perforations 322. The plurality of second perforations 322 are arranged around the first perforation 321. The plurality of second perforations 322 are provided. In a ring-like arrangement, each of the second perforations 322 of the second and third receptacles 32 is relatively straight for each first rotating body 50 to pass between the second and third receptacles 32, and each of the first Rotating body 50 is between the head 31 and the pressing member 42.

The advantages of the torque wrench structure of the present invention are:

1. The plurality of first rotating bodies 50 are accommodated in the third receiving groove 32 of the adjusting member 30, and each first rotating body 50 abuts between the third receiving groove 32 and the top abutting member 42, When the first body 10 is rotated relative to the second body 20 to adjust the torque value of the overall torque wrench structure, the first body The 10 series simultaneously drives the adjustment member 30 to rotate and displace. The plurality of first rotating bodies 50 roll between the third receiving groove 32 and the abutment member 42, so that the head 31 of the adjustment member 30 abuts against the abutment member. The rolling friction between the plurality of first rotating bodies 50 between the members 42 can reduce the wear of the adjusting member 30 and the abutting member 40.

2. The plurality of first rotating bodies 50 are arranged in a ring shape with respect to the axis, so that the head 31 of the adjusting member 30 and the plurality of first rotating bodies 50 are in contact with each other at multiple points. The member 42 and the plurality of first rotating bodies 50 are also in multiple points of contact. The adjusting member 30 and the abutting member 42 can have a better force balance structure through the plurality of first rotating bodies 50. The top The abutment 42 does not have a skewed state.

3. The rigidity of the first rotating body 50 may be less than the rigidity of the adjusting member 30 and the abutting member 42, so that the plurality of first rotating bodies 50 will have maximum wear. cut costs.

4. Please supplement with the seventh and ninth figures. When the plurality of first rotating bodies 50 abut against the inner peripheral surface of the second receiving groove 22, it can assist the adjusting member 30 to align the second receiving groove. The axis of 22, the plurality of second rotating bodies 60 can assist the adjusting member 30 to align the axis of the second volume 22, and have structural stability.

Therefore, the torque wrench structure of the present invention has industrial applicability, novelty, and progress, and can meet the application requirements of the invention patent, and submit an application according to law.

Claims (16)

A torque wrench structure includes: a first body, a first receptacle is provided in the first body; a second body, the second body system is pivoted with the first body, and the first body The system is rotatable and displaceable relative to the second body. One end of the second body is provided with a driving part. The second body is provided with a second receiving tank. The second receiving tank is in communication with the first receiving tank. An adjusting member accommodated in the first receiving groove, and when the first body is rotated to rotate and displace the first body relative to the second body, the first system drives the adjusting member to rotate And displacement, one end of the adjusting member is provided with a head, the head is accommodated at the second receptacle, the head is provided with a third receptacle, and the third receptacle is in the shape of a concave ring groove. An elastic group, which is accommodated in the second body, the elastic group includes an elastic element and a top abutment; the elastic element is accommodated in the second container, and the adjusting member rotates And when the displacement occurs, the adjusting member will actuate the length of the elastic element to adjust the torque wrench structure. Torque value; the abutment member is accommodated in the second receptacle, the abutment member is disposed between the adjusting member and the elastic element, and the abutment member is abutted on the elastic element; a plurality of first rotations Body, the plurality of first rotation systems are accommodated at the third accommodation groove of the adjusting member, the plurality of first rotation systems are abutted between the third accommodation groove and the abutment member, and each first rotation system can be Rolling at the third volume, the plurality of first rotating systems are arranged in a ring shape around the axis of the adjusting member. The torque wrench structure according to claim 1, wherein the first system is in the shape of a round rod, one end of the first body is provided with a grip for holding, and the first receiving groove is in the shape of a circular groove. . The torque wrench structure according to claim 1, wherein the driving portion is exposed from the first body, and the driving portion is a ratchet wrench structure or an open-end wrench structure with a four-cornered head. The torque wrench structure according to claim 1, wherein the opening of the second receiving groove is far away from the driving part, and the second receiving groove has a circular groove shape. The torque wrench structure according to claim 1, wherein the axis of the third receiving groove is the axis of the adjusting member, and the third receiving groove is in the shape of a concave arc. The torque wrench structure according to claim 1, wherein the abutment piece is provided with a convex portion, which is relatively positive to the head portion, the convex portion is a convex arc surface, and the convex portion is accommodated. Between the plurality of first rotating bodies. The torque wrench structure according to claim 1, wherein each first rotation system can roll at the third receiving groove and be displaced around the axis of the adjusting member. The torque wrench structure according to claim 1, wherein each of the first rotating systems has a bead shape or a roller shape. The torque wrench structure according to claim 1, wherein the rigidity of the first rotating body is less than that of the adjusting member and the abutting member. The torque wrench structure according to claim 1, wherein the plurality of first rotating systems can rotate freely at the third receiving groove and automatically shift around the path of the third receiving groove, so that the plurality of first rotating bodies It has the function of rolling friction between the adjusting member and the plurality of first rotating bodies and the abutting member. The torque wrench structure according to claim 1, wherein the third receiving groove is inclined, that is, the third receiving groove is connected to the end surface and the outer peripheral surface of the head, and the third receiving groove is open. When the first rotating body abuts against the inner peripheral surface of the third receiving tank, the abutting member and the second receiving tank, when the plurality of first rotating bodies abut against the inner peripheral surface of the second receiving tank It can assist the adjusting member to align the axis of the second receiving groove. The torque wrench structure according to claim 1, wherein a fourth receiving groove is provided on the outer peripheral surface of the head of the adjusting member, and the fourth receiving groove is in the shape of a concave annular groove and is provided with a plurality of second rotations. The plurality of second rotating systems are accommodated at the fourth receiving tank, the plurality of second rotating systems are arranged in a ring shape, and the plurality of second rotating systems abut against the inner peripheral surface of the second receiving tank and the first receiving tank. Between the four receiving grooves, when the adjusting member rotates and displaces, the plurality of second rotating systems roll between the second receiving groove and the fourth receiving groove, and the plurality of second rotating systems can assist the adjusting member to face the right The axis of the second container. The torque wrench structure according to claim 12, wherein each of the second rotating systems has a bead shape or a roller shape, and a diameter of the second rotating body is smaller than a diameter of the first rotating body. The torque wrench structure according to claim 1, wherein one end of the abutting member is provided with a fifth receiving groove, and the fifth receiving groove is relatively orthogonal to the third receiving groove of the adjusting member, and the fifth receiving groove The groove system is in the shape of a concave ring groove, and the fifth accommodation groove is in the shape of a concave arc. The plurality of first rotation systems are accommodated between the third accommodation groove and the fifth accommodation groove. At this time, the plurality of first rotating systems roll between the third receiving tank and the fifth receiving tank. The torque wrench structure according to claim 1, wherein the third receiving grooves are in a plurality of shapes, each third receiving groove is in a shape of a concave arc, and the plurality of third receiving grooves are in a ring shape. Each third receiving slot is used for receiving each first rotating body. The torque wrench structure according to claim 1, wherein the third receiving groove is in the shape of a single element, the third receiving groove is in the shape of a round seat, and the number of the third receiving grooves is two. The third receiving tank is disposed oppositely, the two third receiving tanks are disposed between the adjusting member and the abutting member, the plurality of first rotating systems are provided between the second third receiving tanks, and the third receiving tank is A first perforation is provided. The first perforation is provided at the center of the third receptacle. The third receptacle is provided with a plurality of second perforations. The plurality of second perforations are provided around the first perforation. The second perforations are arranged in a ring shape. Each of the second perforations of the second and third receptacles is relatively positive for each first rotating body to pass through between the second and third receptacles. The rotating system abuts between the head and the abutting member.