KR100722991B1 - Chair with a closely supporting back rest - Google Patents

Abstract

The present invention is a chair composed of a seat plate, a leg supporting the seat plate, and a backrest installed at the rear of the seat plate to support the upper body of the seat occupant, the front of which is formed by opening a predetermined portion and an outer side of the opening. Supporting means comprising a fixed case of the enclosure type fixed to the support means, the lower portion is bent to allow the elastic movement is fixed to the seat plate; A close pressurizing means, one end of which is installed in the casing of the support means so as to keep the backrest in close contact with the upper body of the seated body, and the other end of which is installed behind the backrest; Including the angle adjusting means installed between the backrest and the pressing means to adjust the angle of the backrest according to the movement of the seat in the state that the upper body of the seated person is in close contact with the backrest, so that the user having a variety of body types It provides the chair with a close backrest that can induce a more comfortable sitting posture.

Chair, seat, backrest, close contact, pressurization, angle adjustment, restoration

Description

Chair with close back {chair with a closely supporting back rest}

1 is a side view schematically showing the configuration of a chair according to an embodiment of the present invention.

2 and 3 are a perspective view and a cross-sectional view showing an enlarged connection structure of the 'I' portion shown in FIG.

4 is an exploded perspective view schematically showing a coupling structure of the close pressing means and the restoring means shown in FIGS. 2 and 3.

5 is an exploded perspective view showing the configuration of the angle adjustment means according to an embodiment of the present invention.

6 is an exploded perspective view showing the configuration of the angle adjusting means according to another embodiment of the present invention.

7 and 8 are a side view and a front view showing an operating state of the chair according to an embodiment of the present invention.

9 is a front view of a chair according to another embodiment of the present invention.

10 is a rear view showing the configuration of the height adjustment means according to an embodiment of the present invention.

* Description of symbols on main parts of the drawings *

A-Chair 10-Seat

20-Leg 30-Backrest

40-support means 41-fixing part

42-support 43-opening

44-Retention Case 50-Tight Pressing Method

51-Cylinder 52-Rod

53-Retaining Plate 54-Reinforced Shaft

55-Restoration means 60,60 '-Angle adjustment means

61-Government 1 62-Government 2

63-Connection 64-Ball

65-Insertion hole 65a-Insertion hole

70-First Fastener 71-Second Fastener

73-fasteners

The present invention relates to a chair, and more particularly, the position of the backrest is configured to be adjusted according to the upper body movement of the seated person, so that the upper body of the seated body can be supported more uniformly, and the backrest can provide comfort and comfort. It is about a chair to be in close contact.

As the living culture of modern people is gradually westernized, the time for sitting on a chair is increased due to the spread of sedentary living culture, and especially for office workers or students, they spend most of their time sitting on the chair. Importance is growing.

As a result, the chairs that are currently being produced are becoming more and more functional elements that allow the occupants to live comfortably, and provide various types of cushions for each chair to comfortably support the buttocks and upper body of the occupants. A chair is coming out.

In general, the chair is composed of a number of legs supported on the ground, a seat plate horizontally mounted to support the buttocks of the seat at the upper end of the leg, and a backrest supporting the upper body of the seater at the rear of the seat plate, and consists of various structures It is to adjust the position and angle of the backrest by a variety of adjustment device.

However, the conventional chair has to perform the operation of the operation of the various control devices because the various control devices are operated through the operation of the seat, the operation is very inconvenient because the operation is performed in the seated state seated on the chair There is also a problem that there is a certain limit in providing a comfortable seating posture because the movement of the seated person gradually changes even if the adjustment device is adjusted.

Therefore, the present invention has been made to solve the above-mentioned problems with the conventional chair, the object of the present invention is to be configured to be freely adjusted according to the upper body movement of the seat, and therefore must carry a separate operation operation It is possible to solve the inconvenience, as well as to provide a chair that is close to the backrest to be able to induce a more comfortable sitting posture for various users of various body types.

The present invention is a chair comprising a seat plate, a leg supporting the seat plate, and a backrest installed at the rear of the seat plate to support the upper body of the seat occupant, an opening formed by opening a predetermined portion on the front surface of the seat, Supporting means including a fixed case of the enclosure-type fixed to the outer side, the lower portion is bent to allow the elastic movement to be fixed to the seat plate; A close pressurizing means, one end of which is installed in the casing of the support means so as to keep the backrest in close contact with the upper body of the seated body, and the other end of which is installed behind the backrest; Characterized in that it comprises an angle adjusting means installed between the backrest and the close pressing means so that the angle of the backrest is adjusted according to the movement of the seated in the state that the upper body of the seated person is in close contact with the backrest.

In addition, the close contact with the pressure means, one end is installed in a structure that is rotatable inside the fixed case of the support means, and the inside / inside of the cylinder is installed in a structure that can be pulled out, the tip is fixed to the angle adjusting means It consists of a shock absorber composed of rods.

In addition, a plurality of reinforcement shafts are installed around the rod of the close pressing means to implement a smooth operation of the rod.

In addition, the angle adjusting means, the first fixing portion for fixing with the close pressing means,

Located on both sides of the first fixing part, and comprises a second fixing part fixed to the back of the backrest, and a connecting portion formed of a flexible material such as rubber connecting the first fixing part and the second fixing part. .

The angle adjusting means may include a ball part integrally formed at the front end of the close pressing means, and an insertion part having an insertion hole to allow free movement by inserting the ball part into the rear surface of the backrest.

In addition, the fixing case is provided with a predetermined restoring means so that a constant restoring force acts upon rotation of the close pressing means.

In addition, the restoring means, and the coil portion formed in a pair on both left and right sides,

A first support part extended to one end of the coil part and installed in a state of supporting the fixed case, a second support part extending to the other end of the coil part, and the second support part to support the close support means; It is configured to include a connection.

In addition, the fixed case may be installed to be capable of height adjustment in the vertical direction of the support means by a predetermined height adjustment means.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1 is a side view schematically showing the configuration of a chair according to an embodiment of the present invention, Figures 2 and 3 are a perspective view and a cross-sectional view showing a connection structure of the 'I' portion shown in Figure 1, Figure 4 2 and 3 is an exploded perspective view schematically showing a coupling structure of the close pressing means and the restoration means shown in FIG.

As shown in FIGS. 1 to 4, the chair A according to the exemplary embodiment of the present invention has a predetermined support means 40 and a close contact pressure means 50 having a seat plate 10 having a leg 20 installed on the lower side. And, it is connected to the backrest 30 by the angle adjusting means (60).

The support means 10 has a fixed part 41 having one end fixed to the lower part of the seat plate 20, and a support part 42 formed by being bent toward the backrest 30 so as to enable elastic movement from the fixed part 41. Are formed separated by.

The support part 42 has an opening 43 formed by opening a predetermined portion, and a fixed case of an enclosure type for providing an installation space of the close pressing means 50 which will be installed on the outer side of the opening 43 and will be described later. 44) is installed.

At this time, the fixed case 44 is installed in a structure capable of height adjustment with respect to the support portion 42, thereby enabling the height adjustment of the backrest 30. Such, the content of the height adjustment of the backrest 30 will be described in more detail in the description of the height adjustment means 70 to be described later.

In addition, the support 43 may extend the upper end portion to the upper part to install the headrest 80 on the front, by installing an armrest (not shown) in the structure of the height adjustable on both sides of the seat plate 20 It can improve the convenience of the seated person.

The close pressing means 50 serves to keep the backrest 30 in close contact with the upper body of the seated person. In other words, even if movement (movement in the front and rear direction) occurs in the seated state, the upper body of the seated person is to be held in close contact with each other.

Such a close pressing means 50 may have a variety of structures, but the shock absorber (shock absorber) is installed in the cylinder 51 and the inside of the cylinder 51 in a structure that can be pulled in / out It is preferable that it consists of. That is, the shock absorber has a characteristic that the rod 42 is always drawn outward by the internal pressure.

Accordingly, the end of the cylinder 51 of the shock absorber, which is the close pressing means 50, is installed inside the fixed case 44 of the support means 40, and the tip of the rod 42 is installed behind the backrest 30. By doing so, the backrest 30 moves together according to the direction in which the seated person moves (moving in the front and rearward directions) so that the backrest 30 can be maintained in close contact with the upper body of the seated person.

In addition, the rod 42 of the shock absorber, which is a close pressing means 50, has a structure protected by a plurality of reinforcement shafts 54. That is, since the backrest 30 and the support means 40 are connected in dependence on the close pressurization means 50, there is no resistance to external shock applied from the side, so that the rod is bent or bent, so that smooth operation cannot be expected. .

Therefore, by providing the fixing plate 53 at the tip of the cylinder 41 and providing the reinforcing shafts 54 on both sides of the fixing plate 53 around the cylinder 41, the rod 42 against external impact. To protect them.

In addition, the end of the cylinder 51 of the close contact pressing means 50 is installed in a structure that can be rotated inside the fixed case 44. That is, the position of the backrest 30 can be adjusted in the up and down direction according to the seating state of the seated occupant, so as to stably support the upper body of each other seated seat.

In addition, a predetermined restoring means 55 is installed inside the fixed case 44. The restoring means 55 rotates and moves the close pressing means 50 downward by the load applied to the backrest 30, and then removes the close pressing means 50 when the load applied to the backrest 30 is removed. Restores the original position.

The restoring means 55 is a form of connecting two torsion springs, and extends to one end of the coil portions 55a and 55a 'formed in a pair on both left and right sides and the coil portions 55a and 55a'. First supporting portions 55b and 55b ', second supporting portions 55c and 55c' extending to the other end of the coil portions 55a and 55a ', and second supporting portions 55c and 55c'. It is composed of a connecting portion (55d) for connecting the coil, the coil portion (55a) 55a 'and the first support portion (55b, 55b') is installed in a state supporting the fixed case 44, the second support portion ( The connecting portion 55d connecting the 55c and 55c 'is installed in a structure supporting the close pressing means 50.

Accordingly, the load applied to the backrest 30 is removed because the second support portions 55c and 55c 'also rotate from the coil portions 55a and 55a' according to the rotation of the close pressurizing means 50 to provide the restoring force. In this state, the close pressing means 50 is able to restore to the original position.

In the present invention, the restoring means 55 is shown as having a form of a torsion spring, but is not limited thereto and may be of various shapes and structures that can provide restoring force according to the rotation of the close pressing means 50 such as a leaf spring. Of course, the devices can be applied.

The angle adjusting means 60 is installed between the backrest 30 and the close pressing means 50, the free movement of the seated person (twist in the left / right, up and down direction) while the backrest 30 supports the upper body of the seated person. To play a role.

Referring to the drawings will be described with respect to the angle adjusting means 60 provided in the chair (A) according to the present invention.

5 is an exploded perspective view showing the configuration of the angle adjustment means according to an embodiment of the present invention, Figure 6 is an exploded perspective view showing the configuration of the angle adjustment means according to another embodiment of the present invention.

As illustrated in FIG. 5, the angle adjusting means 60 provided in the chair A according to the present invention connects the backrest 30 and the close pressing means 50 and the upper body movement of the seated person supported by the backrest 30. The angle changes according to the (twist in the left / right, up / down direction), which maintains a uniform and stable seating posture.

The angle adjusting means 60 is located on both sides of the first fixing part 61 and the first fixing part 61 fixedly installed at the rod end of the shock absorber, which is the close pressing means 50, and is provided with a backrest 30. ) And a second fixing part 62 for fixing to the first fixing part 62 and a connecting part 63 connecting the first fixing part 61 and the second fixing part 62. At this time, the connection portion 63 is formed of a flexible material such as rubber so as to move around the coupling portion with the close contact pressure means 50, as well as a constant restoring force when the movement occurs.

Therefore, since the connecting portion 63 connecting the first fixing portion 61 and the second fixing portion 62 is formed of a flexible material that can be twisted, when the upper body of the seated person is moved, the backrest 30 moves by the seated person. As it is possible to move together, after the upper body movement of the seated by the restoring force of the connecting portion 63 it is possible to keep the backrest 30 in close contact with the upper body of the seated.

In addition, the connection portion 63 is formed in a form in which the upper / lower / front / rear portion is recessed inwardly as shown in the figure, it is possible to implement the movement of the backrest 30 more flexibly.

On the other hand, the angle adjusting means (60) provided in the chair (A) according to the present invention may enable a free movement of the backrest 30 by applying a coupling structure 60 'of the ball joint, which is a different structure.

That is, as shown in FIG. 6, the spherical ball part 64 is integrally formed at the tip of the rod 52 of the shock absorber, which is the close pressing means 50, and the ball part 64 is formed on the rear surface of the backrest 30. It is possible to be provided by the insertion portion 65 is formed with the insertion hole (65a) for coupling in a structure capable of free movement.

Therefore, the backrest 30 is supported by the support means 40, the close pressing means 50, and the angle adjusting means 60, so that the seated person seated on the seat plate 20 sits straight as in FIG. 7A, or FIG. 7B. As shown in FIG. 7C, the backrest 30 is also variable depending on the upper body movement of the seated person according to the change of the upper body of the seated person. As it changes to support the upper body of the seated, it will be able to stably induce a more comfortable sitting posture.

Figure 9 is a front view of a chair according to another embodiment of the present invention, showing a state applied to the back of the duo-style.

As shown in FIG. 9, the chair according to the present invention can be applied to a backrest of a duo-back style which has been widely used recently.

The Duoback refers to the backrest, which is divided into two backrests 30 'and 30 "to support the seat back and the back of the seated occupant, and has two to three fingers between the two backrests 30' and 30". By allowing the space to remain so that the seated person does not receive any pressure when sitting, by providing a close pressing means 50 and the angle adjusting means 60 in the duo-back style backrest 30 ', 30 ", It is possible to provide more comfortable comfort.

10 is a rear view showing the height adjustment means of the backrest provided in the chair according to the present invention.

As shown in FIG. 10, the chair A according to the present invention may be provided with a predetermined height adjusting means so as to provide a suitable height according to the body of the seated person, thereby adjusting the height of the backrest 30, such as a backrest 30. ) Height can be adjusted by adjusting the position of the fixed case 44 installed on the support means (40).

That is, a plurality of first fastening holes 71 are formed at both sides of the opening 43 of the support means 40 along the longitudinal direction, and both ends of the fixing case 44 correspond to a part of the first fastening holes 71. The second fastening hole 72 is formed at the position, and is assembled by the fastener 73 fastened through the first fastening hole 71 and the second fastening hole 72, and corresponding to the second fastening hole. The height adjustment is possible by providing the 1st fastening hole many up and down in the position.

In the present invention, the first fastening hole is formed by a plurality of the height adjustment of the backrest 30 is shown as a structure that can be, but is not limited to this can be applied to a device having a variety of forms and structures.

As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example and must be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

As described above, according to the chair according to the present invention, the backrest changes variably according to the upper body movement of the seated person, and thus supports the upper body of the seated person continuously, thereby inducing a more comfortable seating posture for various users having various body types. To be effective.

Claims (8)

A chair comprising a seat plate, a leg supporting the seat plate, and a backrest provided at the rear of the seat plate to support the upper body of the seater, A support means configured to have a flat plate-shaped opening portion and a fixing case fixedly installed at both ends of the opening portion, the lower portion of which is bent to be fixed to the seat plate to enable elastic movement; A close pressurizing means, one end of which is installed to be rotatable inside the fixing case of the support means and the other end of which is installed behind the back of the back to keep the backrest in close contact with the upper body of the seater; And The backrest is configured to include an angle adjusting means installed between the backrest and the close pressing means so that the angle of the backrest is adjusted according to the movement of the seated person while the upper body of the seated person is kept in close contact with the backrest. Chair. The method of claim 1, The close pressing means, One end is provided with a cylinder installed in a rotatable structure in the fixed case of the support means, Is installed in the inside of the cylinder structure can be pulled in / out, the front end of the chair is characterized in that the shock absorber consisting of a rod fixed to the angle adjusting means. The method of claim 2, Around the rod of the close pressing means, And a plurality of reinforcing shafts installed on both sides of the rod to disperse the external force applied to the rod to implement smooth operation of the rod. The method according to claim 1 or 2, The angle adjusting means, A first fixing part for fixing with the close pressing means, Located in both sides of the first fixing part, the second fixing part is fixed to the back of the backrest, and The chair is in close contact with the backrest, characterized in that it comprises a connecting portion of a flexible material connecting the first and second fixing parts. The method according to claim 1 or 2, The angle adjusting means, A ball part integrally formed at the tip of the close contact means; The backrest is a chair in which the backrest is in close contact with the back portion of the backrest is characterized in that it is composed of an insertion portion having an insertion hole to enable free movement. The method according to claim 1 or 2, In the fixed case, The backrest is in close contact with the chair, characterized in that the restoring means is provided so that a constant restoring force is applied during the rotation of the close contact means. The method of claim 6, The restoration means, Coil part formed in one set on both left and right sides, A first support part extending in one end of the coil part and installed in a state of supporting a fixed case; A second support portion extending to the other end of the coil portion, The backrest is in close contact, characterized in that it comprises a connecting portion for supporting the cylinder of the pressing means by connecting between the second support portion. The method according to claim 1 or 2, In the fixed case, The backrest is in close contact with the chair characterized in that the height is adjustable in the vertical direction of the support means by the height adjustment means installed on the contact surface of the fixed case and the support means.

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