JPH088212Y2 - Lock handle device for drawer revolving door - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention allows the handle to be flatly retracted into the case when the door is closed and locked, while the handle is pulled out from the case and rotated when the door is opened. The present invention relates to a door lock handle device that unlocks a door from a fixed frame body.

(Prior Art) As a flat handle device in which the handle is immersed and held in the case when not in use, as described in Japanese Utility Model Publication No. 57-1109.
As disclosed in Japanese Patent Publication No. 1, the base end of the handle is pivotally attached to the case by a transverse pivot, and the stopper plate is pivotally attached to the back of the case by pivot screws in the front-rear direction. There is one in which an actuating protrusion projecting on the back is inserted into a passive hole in the central portion of a metal plate and the actuating protrusion pushes the hole edge of the passive hole.

However, in this conventional device, since the rotation surface of the handle and the rotation surface of the stopper plate intersect at a right angle, the movement is inevitable, and when the stopper plate disengages while strongly slidingly contacting the receiving part. When the load from the locking rod member that interlocks with the lock plate is large, the operating protrusion of the handle may be distorted or broken.

In a drawer rotation type door lock handle device disclosed in Japanese Utility Model Laid-Open No. Sho 61-20862, the rotor is arranged in the front-rear direction of the case and housed in the case, and the fixed frame side receiving member is provided at the rear end of the rotor. Since the base end of the handle that is retractably housed in the case is pivotally attached to the front end of the rotor by the transverse pivot, the difficulty of the conventional planar handle device described above is fixed. Has been resolved.

(Problems to be solved by the invention) However, in this door lock handle device, since the means for restricting the rotation angle of the rotor or the handle with respect to the case is not provided, the handle is correctly placed in the handle accommodating portion of the case. It is not possible to prevent the handle from being pushed into the case when it is not aligned, and the side edges of the handle and the front edge of the handle accommodating part are damaged when the handle is pushed in, and the plating layer is destroyed and the handle and case are damaged. There is a risk of promoting corrosion.

Therefore, an object of the present invention is to provide a lock handle device for a drawer rotary type door, which can prevent corrosion of the handle and the case without damaging the side edge of the handle and the front edge of the handle housing when the handle is pushed. It is to be.

(Means for Solving Problems) Hereinafter, a description will be given using the reference numerals in the accompanying drawings. The drawer rotation type door lock handle device of the present invention includes a case 2 fixed to the door 1 and a case 2. The case 2 is arranged in the front-rear direction and accommodated in the case 2, and the receiving portion 4 on the fixed frame 3 side is provided at the rear end.
A rotor 6 for fixing a stopper plate 5 for engaging and disengaging with the case 2;
A latch body that is housed in a retractable manner in the housing, and has a base end pivotally attached to the front end of the rotor 6 by a transverse pivot 7, and a latch body that is housed in the case 2 and disengages from a receiving portion 11 at the tip of the handle 8. 10 and a spring 13 that is housed in the case 2 and biases the handle 8 to rotate in the projecting direction. A restricting protrusion 14 is integrally formed on the rear surface of the base end of the handle 8 so as to accommodate the rotor of the case 2. A positioning recess 16 is provided in the front opening edge 15a of the portion 15, and when the handle 8 is aligned with the handle accommodating portion 17 of the case 2, the restriction protrusion 14 is engaged with the positioning recess 16.

(Operation) When the engagement between the latch body 10 and the receiving portion 11 is released, the spring is released.
The rotation bias of 13 causes the handle 8 to rotate about the transverse pivot 7, and the handle 8 projects from the handle housing 17 at an angle of about 35 degrees as shown in FIG. At this time, the regulation protrusion 14 on the back surface of the handle is in contact with the front surface of the positioning recess 16 at the tip portion.

When this protruding handle 8 is rotated in a predetermined direction in a plane parallel to the front surface of the door 1 with the rotor accommodating portion 15 as the center, the restricting protrusion 14 escapes from the positioning recess 16 as shown in FIG. And slides while coming into contact with the front opening edge portion 15a of the rotor housing portion 15.

Since the rotor 6 rotates integrally with the handle 8, the stopper plate 5 also rotates in the same direction, and the stopper plate 5 separates from the receiving portion 4 on the fixed frame 3 side at the end of the rotation. This unlocks the door 1 from the fixed frame body 3, so that the door 1 is opened by pulling the handle 8.

When the door 1 is closed and the handle 8 is turned in the opposite direction, the restriction protrusion 14 slides along the front opening edge portion 15a of the rotor housing portion 15 and enters the positioning recess 16 at the end of rotation. In this way, at the stage where the restriction protrusion 14 and the positioning recess 16 are re-engaged, the stopper plate 5 is re-engaged with the receiving portion 4, and the handle 8 is pushed against the bias of the spring 13. When pushed toward the case 2, the handle 8 is immediately pushed into the handle accommodating portion 17.

(Example) In the illustrated example, an inclined or curved cam surface 14a is formed on the side surface of the restricting protrusion 14 of the handle 8, and the restricting protrusion 14 is formed between the cam surface 14a and the edge surface of the positioning recess 16. The synergistic action guides the handle 8 into a smooth engagement with the positioning recess 16 at the counter-rotated end.

The rotor 6 includes a main body portion 6a in which a waterproof O-ring 19 is fitted in the circumferential groove 18, and an angular shaft body 6b in which a front end portion is non-rotatably fitted in a rectangular recess 20 in the rear surface of the main body portion 6a. It is composed of. The main body portion 6a and the square shaft body 6b are firmly connected to each other by the screw 23 screwed into the front end portion of the axial screw hole 22 of the square shaft body 6b from the axial through hole 21 of the main body portion 6a.

The stopper plate 5 non-rotatably fitted to the square shaft 6b is fixed to the square shaft 6b by a bolt 24 screwed into the rear end side of the screw hole 22. In this way, the angular shaft 6b is the main body part
Since it is not insert-molded when casting 6a,
The manufacturing cost of the rotor 6 as a whole can be reduced, and the mechanical strength of the stopper plate connecting portion can be increased at a relatively low cost by separately selecting the material of the square shaft 6b.

A spring washer 46 is inserted between the back wall of the rotor housing portion 15 and the main body portion 6a. A pair of bearing plate portions 6c are projected on the front surface of the main body portion 6a of the rotor 6, and the base end side wall portions 8a, 8a of the handle 8 are fitted to the rotor 6 so as to sandwich the bearing plate portion 6c, and a transverse pivot shaft is formed. Connected at 7. The rotation biasing spring 13 of the handle 8 is a winding spring fitted to the transverse pivot shaft 7 between the pair of bearing plate portions 6c.

One end of the spring 13 is in contact with the back surface of the handle 8 and the other end is in contact with the head of the screw 23. The base end upper surface wall portion 8d of the handle 8 contacts the bearing pain portion 6c when the handle 8 is projected and rotated, and regulates the rotation angle of the handle 8.

A pair of stop protrusions 25 and 26 are integrally provided on the rear wall of the rotor housing portion 15 of the case 2 on the same circumference centered on the central screw hole 22 of the square shaft body 6b at angular intervals of 180 degrees. ing. The rotation angle regulating disc 27 fitted into the angular shaft body 6b between the back wall of the rotor accommodating portion 15 and the stopper plate 5 is provided with a pair of protrusions 28, 29 on its diameter. When the rotor 6 is rotated by the handle 8, the protrusions 28 and 29 simultaneously contact the side surfaces of the stop protrusions 25 and 26 when the rotation angle becomes 90 degrees.

In this way, since two stop protrusions and two protrusions for restricting the rotation angle are provided at symmetrical positions, the rotational inertia force of the handle 8 that acts when the stopper plate 5 stops rotating should be distributed to two locations. Therefore, these distortion deformations are prevented.

A lock housing portion 30 is formed at the end of the case 2 on the side opposite to the rotor housing portion 15, in which a lock unit 44 in which the lock 12 of the locking mechanism is embedded and fixed is accommodated and fixed by a screw 43. . A cam disk 31 is fitted to the locking shaft 9 of the lock 12, and a back projection 32 of the cam disk 31 is engaged with a receiving groove 33 at the base end of the latch body 10. The latch body 10 is inserted into a guide hole 45 provided in the lock unit 44.

When the lock key 9 is inserted into the key hole 34 of the lock 12 and the locking shaft 9 is rotated in a predetermined direction, the latch body 10 slides backward toward the lock 12 side against the bias of the coil spring 36, and the latch body 10 moves. The tip portion is separated from the receiving portion 11 of the tip portion 8b of the handle 8. As a result, the handle 8 is biased by the spring 13 and automatically projects from the handle accommodating portion 17.

When the handle 8 is pushed into the handle accommodating portion 17, the rear surface 8c of the tip end of the handle 8 pushes the cam slope 10a of the latch body 10, so that the latch body 10 automatically slides backward and the handle 8
The latch body 10 automatically re-engages with the receiving portion 11 when is fully immersed in the handle housing portion 17.

A cover plate for concealing the front part of the lock 12 can be provided in the case 2, and a push button or a slide button is provided in the case 2 instead of the lock 12, and the latch body 10 is slid backward by operating the button. You can also let it.

Two bosses 37 and 38 with screw holes are projectingly provided on the back wall of the handle accommodating portion 17 of the case 2, and the U-shaped cross-section seat plate 39 fitted so as to straddle the handle accommodating portion 17 is The bus
The case 2 is attached by screws 40 and 41 screwed into the screws 37 and 38. The case 2 is fixed to the door 1 by sandwiching the door 1 between the front flange portion 42 of the case 2 and the front end surface of the seat plate 39.

(Effect of the Invention) As described above, in the door lock handle device of the present invention,
A restriction protrusion 14 is integrally provided on the rear surface of the base end portion of the handle 8 in the rearward direction, and a positioning recess 16 is provided at the front opening edge 15a of the rotor accommodating portion 15 of the case 2. Since the handle 8 is aligned with the handle accommodating portion 17 of the case 2 when the protrusion 14 is engaged with the positioning recessed portion 16, the engaging sound at the time of engagement between the restriction protrusion 14 and the positioning recessed portion 16 and the fingertip are transmitted. If the handle 8 is pushed into the case 2 after confirming the engagement impact, the side edge of the handle 8 and the front edge of the handle accommodating portion 17 are not damaged, and the handle 8 and the case 2 are not damaged.
Corrosion due to the destruction of the plated layer can be accurately prevented.

[Brief description of drawings]

FIG. 1 is a front view of a lock handle device for a drawer / rotating door according to an embodiment of the present invention when the handle is retracted, FIG. 2 is a right side view of the lock handle device, and FIG. It is a rear view of a lock handle device. FIG. 4 is a sectional view taken along the line AA of FIG. 1, and FIG.
It is the BB sectional drawing of a figure. FIG. 6 is a longitudinal sectional view of a main part of the lock handle device in a state where the handle is projected, and FIG. 7 is a sectional view taken along the line CC of FIG. FIG. 8 is a rear view of the handle, and FIG. 9 is a front view of the lock handle device when the handle is rotated. 1 ... Door, 2 ... Case, 3 ... Fixed frame, 4 ... Receiving part, 5 ...
Stop plate, 6 ... Rotor, 7 ... Transverse pivot, 8 ... Handle,
9 ... Locking shaft, 10 ... Latch body, 11 ... Receiving part, 12 ... Lock, 13 ...
Handle biasing spring, 14 ... Regulating protrusion, 15 ... Rotor housing, 16 ... Positioning recess, 17 ... Handle housing

Claims (1)

[Scope of utility model registration request] 1. A case 2 fixed to a door 1, a stopper arranged in the front-rear direction of the case 2 and accommodated in the case 2, and engaging and disengaging at a rear end thereof with a receiving portion 4 on the fixed frame 3 side. A rotor 6 to which the plate 5 is fixed, a handle 8 housed in the case 2 so as to be retractable, and a base end of which is pivotally attached to the front end of the rotor 6 by a transverse pivot shaft 7, and a case 8 which is housed in the tip of the handle 8. A latch body 10 that engages and disengages with a receiving portion 11 of the portion, and a spring 13 that is housed in the case 2 and urges the handle 8 to rotate in a protruding direction.
A regulating protrusion 14 is integrally provided on the rear surface of the base end portion of the handle 8,
A positioning recess 16 is provided at the front opening edge 15a of the rotor accommodating portion 15 of the case 2, and when the handle 8 is aligned with the handle accommodating portion 17 of the case 2, the regulating protrusion 14 is positioned in the concave recess.
A lock handle device for a drawer revolving door that engages with 16.