JP3270419B2 - Lock handle device for drawer rotation type door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drawer rotation type door lock handle device used for locking and opening / closing a door of a storage box or the like of various devices.

[0002]

2. Description of the Related Art In a lock handle device for a drawer-rotating operation type door disclosed in Japanese Utility Model Publication No. Hei 8-2336, a bearing cylinder is projected from the rear side of a fixed case fixed to the door.
The main shaft is fitted into the bearing cylinder portion so as to be relatively rotatable and immovable in the front-rear axial direction, and the sub shaft is fitted into the main shaft so that the center axis is aligned so as to be relatively non-rotatable and moveable in the front-rear axial direction. The base end of the operating handle housed in the groove in the front-rear direction and the recess of the fixed case so as to be able to protrude and retract is pivotally attached to the front end of the sub-shaft 5 by a transverse pivot intersecting with the center axis of the main shaft and the sub-shaft. When the operation handle is pulled out of the recess, the distance between the base end side surface of the operation handle, which comes into contact with the bottom of the groove when the operation handle is immersed in the recess, and the transverse pivot is brought into contact with the bottom of the groove. The auxiliary shaft is set to be longer than the distance between the proximal end surface of the operating handle and the transverse pivot, and the secondary shaft is moved backward and biased by a spring arranged concentrically with the main shaft and the secondary shaft. At the end, with the receiving part on the fixed frame side It is connected the latch plate to escape.

In this conventional apparatus, when the operating handle is pulled out and rotated about the transverse pivot, the countershaft moves backward by the difference between the two distances, and the engagement between the stopper plate and the receiving part is released. On the other hand, when the operation handle is pushed down and rotated about the transverse pivot, the countershaft is moved forward by the difference between the two distances, and the catch plate is pulled into engagement with the catch. In order to prevent the catch plate from interfering with the receiving portion when the door is opened, the retaining plate is retracted and rotated from the space on the back side of the receiving portion by rotating the main shaft and the counter shaft in a predetermined direction with the operation handle. .

However, in the door lock handle device of this type, when the operating handle is pushed into the recess of the fixed case at a stage where the stopper plate does not return to the normal position where it engages with the receiving portion, the outer side surface portion of the operating handle is required. Slightly diagonally intersects the inner edge of the depression and cuts into the depression, causing abrasion on the outer surface of the operation handle, destroying the surface coating film and plating layer and causing corrosion. ing.

Further, when the operation handle is housed in the recessed portion of the fixed case, the rotation of the main shaft is stopped, so that the relative position between the stopper plate and the receiving portion is subject to errors and fluctuations. When a large rotational load is applied to the stopper plate due to a collision or the like, all of the rotational moment from the stopper plate is directly applied to the connecting shaft portion of the main shaft and the operation handle, so that the shaft portion is damaged. The danger is great.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a lock handle for a drawer-rotating operation type door in which the outer surface of the operation handle is prevented from being damaged and corroded, and there is no danger of damage to the connecting shaft of the operation handle. It is to provide a device.

[0007]

A lock handle device for a drawer-rotating operation type door according to the present invention will be described below with reference to the reference numerals in the accompanying drawings. The main body 4 is fitted into the main body 4 so as to be relatively rotatable and immovable in the front-rear direction, and the auxiliary shaft 5 is centered so as to be relatively non-rotatable and movable in the front-rear direction. The base end of the operation handle 8 housed in the groove 6 in the front-rear direction of the main shaft 4 and the recess 7 of the fixed case 2 so as to be able to protrude and retract is pivoted to the front end of the sub shaft 5 by the transverse pivot 9. To wear.

A base end side surface 8a of the operating handle 8 which comes into contact with the groove bottom surface 6a when immersed in the recess 7 and a transverse pivot 9
The distance D1 between the base handle 8 and the proximal end face 8 of the operating handle 8 which comes into contact with the groove bottom face 6a when pulled out of the recess 7
b is set to be longer than the distance D2 between the transverse pivot 9 and the rear end of the countershaft 5, a regulating disk 10 is fitted to the rear end of the countershaft 5 so that it cannot rotate relatively, and a spring 11 for urging the subshaft 5 to move in the rear direction is used as a bearing. It is inserted between the inner bottom part 12 of the cylindrical part 3 and the regulating disk 10 to
A plurality of locking projections 13 arranged on the same circle with the main shaft 4 as the center are protrudingly provided on the inner bottom portion 12 toward the rear side in a bevel gear shape, and the sub shaft 5 is provided on the front side of the regulating disk 10. A plurality of locking projections 14 arranged on the same circle at the center are provided in a bevel gear shape so as to protrude toward the front surface.

A catch plate 17 which is engaged with and disengaged from a catch 16 on the fixed frame 15 is connected to the rear end of the countershaft 5, and the catch 17 rotates to the space on the back side of the catch 16. When the operating handle 8 is lowered toward the recess 7 of the fixed case 2 at the position immediately before the locking, the locking projection 13 on the side of the bearing cylinder 3 is provided.
When the operating handle 8 is caused to rotate about the transverse pivot 9 and is rotated while the locking protrusion 14 on the side of the regulating disk 10 is engaged, the regulating disk 1 is moved by the difference between the distance D1 and the distance D2.
0 is moved rearward to disengage the locking projections 13 and 14 from each other.

In the door lock handle device of the present invention thus configured, when the door 1 is locked to the fixed frame 15 as shown in FIG. The whole is immersed and stored in the recess 7,
A stopper plate 17 is engaged with the receiving part 16. As shown in FIG. 8, the counter shaft 5 compresses the spring 1 and is attracted to the front as much as possible, and the locking protrusion 14 on the regulating disk 10 is located between the locking protrusion 13 on the bearing cylinder 3. And is engaged. Further, as shown in FIGS. 7 and 8, the base end side surface 8 a of the operation handle 8 is in contact with the bottom surface 6 a of the groove 6 of the main shaft 4.

In this locked state, when the operating handle 8 is rotated about the transverse pivot 9 and caused to move from the recessed portion 7 of the fixed case 2, as shown in FIG. The base end surface 8b comes into contact with the base end side surface 8a, and the sub shaft 5 is pushed rearward along the main shaft 4 by the difference between the distances D1 and D2. It is held at the moving position. By the retreat of the counter shaft 5, the engagement between the locking projection 14 on the regulating disk 10 and the locking projection 13 on the bearing cylinder 3 is also released, and the stopper plate 17 is placed on the rear side of the receiving part 16. Translate in space.

After that, as shown in FIG. 2, when the sub shaft 5 and the main shaft 4 are integrally turned in a predetermined direction with respect to the bearing cylinder portion 3 by the operation handle 8, the front end portion of the stopper plate 17 is 1
6 and retreats to a position where it does not collide with the receiving part 16 when the door 1 is opened. for that reason,
The door 1 is opened by pulling the operation handle 8 forward. In this unlocked state, the main shaft 4 and the stopper plate 17 are held in a state immediately after the unlocking by the urging force of the spring 11.

After the door 1 is closed, when the operating handle 8 is reversely rotated to the locked position, the front end of the stopper plate 17 that has been rotated integrally with the main shaft 4 and the sub shaft 5 receives the receiving member on the fixed frame 15 side. It enters the space on the back side of the metal part 16. Then, the operation handle 8 is rotated about the transverse pivot 9 to fix the operation case 8 to the fixed case 2.
When the storage disk 1 is stored in the recess 7, the restriction disk 10 is attracted to the front side integrally with the sub shaft 5 by the difference set in the distance D1 and the distance D2, so that the locking projection 1 on the restriction disk side is used.
4 enters between the locking projections 13 on the bearing cylinder 3 side.

The position of the operating handle 8 is correctly regulated by the engagement of the locking projection 14 on the regulating disk side and the locking projection 13 on the bearing cylinder 3 side. Is stored. In addition, the distal end of the stopper plate 17 moves in parallel from the rear side of the metal receiving portion 16 and approaches the metal receiving portion 16 so as to abut and engage without any friction.
Because of the attraction, the locking projections 14 on the regulation disk side enter between the locking projections 13 on the bearing cylinder 3 side.

[0015]

In the illustrated embodiment, the operating handle 8 has a modified T-shape in which a grip 24 is connected at a right angle to a distal end of a leg 22 having a base end pivotally connected to the countershaft 5. And
Depressed portion 2 into which grip portion 24 enters in front of fixed case 2
5 is formed. Slope 2 for hand insertion
6 is formed inside, and a cutout 27 is formed on the side of the fixed case 2 on the other side of the depression 25. In the lying state, the grip portion 24 of the operation handle 8 partially protrudes from the cutout portion 27, so that a finger can be easily hooked.

A lock unit 18 is provided on the fixed case 2 at a position separated downward from the bearing cylinder 3, and a rotor 19 of the lock unit 18 protrudes to the rear side of the fixed case 2.
Has a cam plate 20 fixed thereto. Inside the fixed case 2, a lock bar 21 guided by a back plate 28 is arranged in a vertical direction, and the lock bar 21 can advance and retreat toward the recess 7. The lock rod 2 is attached to the leg 22 of the operation handle 8.
The cam plate 20 is provided with a receiving hole 23 for engaging and disengaging the base end 21b of the lock rod 21 to move the lock rod 21 toward the receiving hole 23. A drive projection 20a is provided. The cam plate 20 is provided with a second drive projection 20b adjacent to the first drive projection 20 for moving the lock rod 21 in a direction away from the receiving hole 23. The base end 21b of the lock rod 21 is bent at right angles to the main body.

As shown in FIG. 3, when the operating handle 8 is accommodated in the recess 7 of the fixed case 2, the base 21b of the lock rod 21 is pushed up by the first driving projection 20a of the cam plate 20. Therefore, the tip 21a of the lock rod 21 is engaged with the receiving hole 23 of the leg 22 of the operation handle 8 from the guide hole 29 in the wall of the recess 7. Therefore, the operation handle 8 is locked at a position where it falls down in the recessed portion 7 of the fixed case 2. As a result, unauthorized operation of the operation handle 8 and rotation operation are stopped, and security is improved.

When a predetermined key 30 is inserted into the lock unit 18 and the rotor 19 is rotated in a predetermined direction, the cam plate 20 is rotated.
Of the lock rod 21 by the second drive projection 20b.
1b is pushed down, the tip 21 of the lock rod 21
a escapes from the receiving hole 23 of the leg portion 22 of the operation handle 8,
The lock of the operation handle 8 with respect to the fixed case 2 is released. Therefore, the operation handle 8 can be pulled out from the recessed portion 7 and can be rotated.

A vertically long concave portion 31 formed by a back plate 28 in a portion adjacent to the bearing cylinder 3 of the fixed case 2 accommodates a click pin 33 urged by a compression coil spring 32, and the click pin 33 is a main shaft. By engaging with the side recess 34 of the side 4, the operator is notified that the main shaft 4 has rotated to the locking position or the unlocking position. The back plate 28 is fixed to the fixed case 2 by screws 44. A click pin 37 urged by a compression coil spring 36 is accommodated in a vertically concave portion 35 formed by the bent plate 7 on the upper rear surface of the fixed case 2, and the click pin 37 is a tip of the leg 22 of the operation handle 8. By engaging the side recess 38 of the portion, the operator is notified that the operating handle 8 has been rotated to the correct lying position. Folded plate 47 is screw 4
8 is fixed to the fixed case 2.

The urging spring 11 of the regulating disk 10 is constituted by a compression coil spring, and is arranged outside the row of the locking projections 13. The countershaft 5 is formed of a square rod, and the stopper plate 17 is fitted to the countershaft 5 so as not to be rotatable relative to the countershaft 5 through a square hole 42 at the center, and is fixedly fastened to the countershaft 5 by screws 39.
A pair of right and left lock bars 40 and 41 are connected to the stopper plate 17. The cam plate 20 is fixed to the rotor 19 of the lock unit 18 by screws 46 via a washer block 45. The first drive projection 20a and the second drive projection 20b are bent and formed on the front side of the teeth, and the proximal end 21b of the lock rod 21 is formed.
push.

[0021]

In the lock handle device for a drawer rotating operation type door of the present invention configured as described above, at the position immediately before the locking where the stopper plate 17 has been rotated to the space on the back side of the receiving part 16, When the operation handle 8 is turned down toward the recessed portion 7 of the fixed case 2, the engagement protrusion 13 on the bearing cylinder portion 3 engages with the engagement protrusion 14 on the regulating disk 10, so that the operation handle 8 is moved. Since it is guided and held at a regular position aligned with the depression 7, the outer surface of the operation handle 8 is not damaged by the inner edge of the depression 7, and the operation handle 8 is not corroded due to damage of the coating film or the plating layer.

Further, in the locked state in which the operating handle 8 is accommodated in the recess portion 7 of the stationary casing 2, even when a large rotation load is applied to the catch plate, the locking bushing portion 3 side are engaged with each other Since the projection 13 and the locking projection 14 on the regulation disk 10 are distributed and loaded, there is no danger that the connecting portion between the operation handle 2 and the countershaft 5 will be damaged, and the durability is excellent.

[Brief description of the drawings]

FIG. 1 is a front view of a lock handle device for a drawer rotating operation type door according to an embodiment of the present invention, wherein the door is in a locked state.

FIG. 2 is a rear view of the door lock handle device.

FIG. 3 is a left side view of the door lock handle device.

FIG. 4 is a right side view of the door lock handle device.

FIG. 5 is a plan view of the door lock handle device.

FIG. 6 is a bottom view of the door lock handle device.

FIG. 7 is a sectional view taken along line AA of FIG. 1;

FIG. 8 is a sectional view taken along line BB of FIG. 2;

FIG. 9 is a sectional view taken along line CC of FIG. 2;

FIG. 10 is a front view of a regulating disk used in the door lock handle device.

FIG. 11 is a rear view of the regulation disk.

FIG. 12 is a bottom view of the regulating disk.

FIG. 13 is a sectional view taken along line DD of FIG. 10;

FIG. 14 is a sectional view taken along line EE of FIG. 10;

FIG. 15 is a front view of a fixed case used for the door lock handle device.

FIG. 16 is a rear view of the fixed case.

FIG. 17 is a sectional view taken along line FF of FIG. 16;

18 is a sectional view taken along line GG of FIG.

FIG. 19 is a horizontal cross-sectional view of a main part of the lock handle device for a door, showing a positional relationship between a base end side surface of the operation handle and central axes of the main shaft and the sub shaft.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Fixed case 3 Bearing cylinder part 4 Main shaft 5 Subshaft 6 Groove part of main shaft 7 Depression part of fixed case 8 Operating handle 9 Transverse pivot 10 Restriction disk 11 Spring for bias 12 Inner bottom of bearing cylinder part 13 Bearing cylinder part side Locking protrusion 14 of the regulating disk 15 fixing frame 16 receiving part 17 stopper plate L center axis of main shaft and sub shaft

Continuation of front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E05B 5/02 E05B 5/00

Claims (1)

(57) [Claims] 1. A back side of a fixed case 2 fixed to a door 1.
And the main shaft 4 is rotated relative to the bearing cylinder 3
Possible and immovable in the front-rear axis direction.
Central axis so that shaft 5 cannot be rotated relatively and can be moved in the longitudinal direction
Align the wires and fit them into the groove 6
Operation han stored in recess 7 of fixed case 2
The proximal end of the dollar 8 to the front end of the countershaft 5 by means of a transverse pivot 9
When pivotally attached and immersed in the recess 7, it comes into contact with the groove bottom surface 6a
Between the base side surface 8a of the operating handle 8 and the transverse pivot 9
The distance D1 between the grooves when pulled out from the recess 7
A base end surface 8b of the operation handle 8 which contacts the bottom surface 6a;
It is set longer than the distance D2 between the traverse axis 9 and the
The regulating disk 10 is fitted to the rear end of the
The spring 11 that moves and urges the rearward is moved to the inner bottom 1 of the bearing cylinder 3.
2 between the regulating disk 10 and the inner bottom of the bearing cylinder 3
12 is a plurality arranged on the same circle around the main shaft 4
Of the locking projection 13 of the bevel gear protruding toward the rear direction,
On the same circle centered on the counter shaft 5 on the front side of the regulating disc 10
A plurality of locking projections 14 arranged in a bevel gear shape in the front direction
At the rear end of the counter shaft 5, and
A metal plate 16 is connected to a metal plate 16 to be engaged and disengaged.
Immediately before the lock 7 rotates to the space on the back side of the receiving part 16
In the position, the operating handle 8 is
7, the locking projection 1 on the bearing cylinder 3 side
3 engages with the locking projection 14 on the regulation disk 10 side,
Pull out the operation handle 8 about the transverse axis 9 and rotate it.
The distance between the distance D1 and the distance D2
0 moves in the rear direction, and the locking protrusions 13 and 14
A lock handle device for a drawer rotating operation type door in which a pulling engagement is released .