JP4111400B2 - Lock handle device for door - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door lock handle device that is used in a switchboard, a vending machine, etc., and in a locked state in a normal state, a handle is housed in a fixed case, It is.

In the conventional door lock handle device,
A locking shaft is fitted and inserted into the longitudinal cylindrical portion of the fixed case, a proximal end portion of the handle is connected to a front end portion of the locking shaft by a transverse pivot shaft, and a stopper plate is fixed to a rear end portion of the locking shaft. A handle posture holding mechanism is provided between the locking shaft and the handle so as to urge the handle to alternately take two stable states of an immersion position and a protruding position with respect to the fixed case, and is in the immersion position. A locking mechanism for locking the handle to the fixed case is incorporated at the tip of the handle, and the locking mechanism is
A bottomed lock housing cylinder formed at the front end of the handle toward the rear wall of the fixed case, and a lock mechanism for the lock housing cylinder that is rotatably accommodated in the lock housing cylinder A lock cylinder having a built-in structure, a retaining mechanism for preventing the lock cylinder from being pulled out of the lock housing cylinder, and a slidably housed in a diametrical groove in the bottom of the lock housing cylinder, The lock plate is driven by an eccentric cam projection on the front end surface of the cylinder and engages with a lock receiving portion of the side wall portion of the lock housing cylinder portion (see Patent Document 1).

As the retaining mechanism, a pin system in which a fixing pin is driven into an annular groove on the outer peripheral surface of the lock cylinder from a through hole in a side wall portion of the lock accommodating cylinder portion, and a receiving groove on the outer peripheral surface of the lock cylinder. There is known a retaining ring system in which a C-ring-shaped retaining ring accommodated by being biased by a spring is engaged with an annular groove on an inner peripheral surface of the lock accommodating cylinder portion.

Japanese Patent No. 3373458

The object of the present invention is to reduce the member cost of the lock handle device for the door by sharing part of the components of the lock mechanism of the handle with respect to the fixed case and the locking mechanism of the lock cylinder. It is to reduce production costs.

The main feature of the present invention is that the locking shaft 3 is fitted and inserted into the longitudinal cylindrical portion 2 of the fixed case 1, and the proximal end portion of the handle 4 is connected to the front end portion of the locking shaft 3 by the transverse pivot shaft 5. A stopper plate 8 is fixed to the rear end portion of the locking shaft 3, and the handle 4 is positioned between the locking shaft 3 and the handle 4 in two stable positions, an immersion position and a protruding position. A handle posture holding mechanism that urges the state to alternate is provided, and a lock mechanism that locks the handle 4 to the fixed case 1 when it is in the retracted position is incorporated on the distal end side of the handle 4 In the door lock handle device,
The lock mechanism includes a lock accommodating cylinder portion 22 formed at the distal end portion of the handle 4 so as to protrude toward the rear wall portion 9 of the fixed case;
A lock cylinder 23 rotatably housed in the lock housing cylinder 22 and having a built-in locking mechanism for the fixed body 1;
The lock cylinder 23 protrudes from the front end opening of the lock housing cylinder portion 22 and is fixed to the rear end portion of the lock cylinder 23 in the diametrical direction. Both end portions 25a and 25b are engaged with the front end surface 36 of the lock housing tube portion 22. A forked plate-like stop tumbler 25 ,
A lock formed on the side wall 37 of the fixed case 1 and engaged with one end 25a of the stop tumbler 25 when the lock cylinder 23 is rotated to the lock position at the retracted position of the handle 4. It consists of a receiving part 26 ,
A transverse groove 39 is formed at a portion of the lock cylinder 23 that protrudes from the tip surface 36 of the lock accommodating cylinder portion 22, and each of the pair of legs of the bifurcated stop tumbler 25 is formed. Locking shoulders 40 and 41 are formed on the outer side at two locations with steps along the length direction, and the locking stepped portions 42 and 43 are formed on the pair of inner wall surfaces of the groove 39 in the length direction. It is formed in two places with a step along it,
After inserting the lock cylinder 23 into the lock accommodating cylinder portion 22 from the front side of the handle 4,
The forked plate-like stop tumbler 25 is press-fitted into the slot 39 along the length direction thereof, and the locking step portions 42 and 43 and the locking shoulder portions 40 and 41 are elastically engaged. That is.

In the door lock handle device of the present invention, the lock mechanism that locks the handle 4 in the immersive position to the fixed case 1 includes a lock housing cylinder portion 22 that protrudes from the tip of the handle 4 and a lock housing tube portion 22. A lock cylinder 23 housed and incorporating a locking mechanism for the fixed body 1;
A bifurcated plate-like stop tumbler 25 that is fixed to the rear end of the lock cylinder 23 protruding from the lock housing cylinder 22 and whose both ends 25a and 25b engage with the front end surface 36 of the lock housing cylinder 22; A lock receiver formed on the side wall portion 37 of the case 1 and engaged with one end portion 25a of the bifurcated plate-like stop tumbler 25 when the lock cylinder 23 is rotated to the lock position at the retracted position of the handle 4. Yes constituted by the parts 26,
A transverse groove 39 is formed at a portion of the lock cylinder 23 that protrudes from the tip surface 36 of the lock accommodating cylinder portion 22, and each of the pair of legs of the bifurcated stop tumbler 25 is formed. Locking shoulders 40 and 41 are formed on the outer side at two locations with steps along the length direction, and the locking stepped portions 42 and 43 are formed on the pair of inner wall surfaces of the groove 39 in the length direction. It is formed in two places with a step along it,
After inserting the lock cylinder 23 into the lock accommodating cylinder portion 22 from the front side of the handle 4,
Since the forked plate-like stop tumbler 25 is press-fitted into the slot 39 along its length direction, the locking step portions 42 and 43 and the locking shoulder portions 40 and 41 are elastically engaged. Both the escape of the stop tumbler 25 from the slot 39 and the escape of the lock cylinder 23 from the lock accommodating cylinder 22 are prevented, and the handle 4 is locked to the fixed body 1. The stop tumbler 25 also has a retaining function for preventing the lock cylinder 23 from escaping from the lock accommodating cylinder portion 22.

As described above, according to the present invention, some of the components are shared between the lock mechanism of the handle 4 with respect to the fixed case 1 and the locking mechanism of the lock cylinder 23 from the lock housing cylinder 22. Therefore, the member cost of the door lock handle device can be reduced, and the manufacturing cost of the entire device can be reduced.

This door lock handle device is attached to a door 27 of an electric machine storage box or the like. As shown in FIG. 2, in the locked state where the handle 4 is immersed in the fixed case 1, the stopper plate 8 is The door 27 is locked to the box body so that it cannot be opened by engaging with a strike provided on the box body side.

The handle posture holding mechanism that urges the handle 4 to alternately take two stable states of an immersion position and a protruding position with respect to the fixed case 1 is arranged on the fixed case 1 on the longitudinal center line of the transverse pivot 5. A spring receiving recess 10 formed on the front side of the rear wall portion 9 and offset in an up-down position with respect to the fixing screw hole 6 of the clasp plate 8, and the spring receiving recess 10. A compression coil spring 11 that is housed and elastically deforms along the longitudinal center line of the transverse pivot 5 and a seat receiving recess 12 formed at the front end of the spring receiving recess 10.
An intermediate seat 13 that can be moved along the longitudinal center line of the transverse pivot 5 and the front end of the compression coil spring 11 abuts on the back surface;
An input protrusion 14 formed on the rear surface of the proximal end portion of the handle 4 and deviated to the proximal end side with respect to the center line in the front-rear direction of the transverse pivot 5 and abutting against the front surface of the intermediate seat 13 It is configured.

When the handle 4 is immersed in the fixed case 1 and locked to the fixed case 1, the input protrusion 14 of the handle 4 is positioned above the center line in the front-rear direction of the transverse pivot 5. 2, the rotational moment due to the elastic restoring force of the compression coil spring 11 is a biasing force that rotates the handle 4 in the clockwise direction in FIG. 2 about the transverse pivot 5. is working. Therefore, the handle 4 is held at the immersion position in the fixed case 1.

When an operator pushes the front surface of the base end of the handle 4 with a finger at a position above the front-rear direction center line of the transverse pivot 5, the handle 4 overcomes the clockwise biasing force, and the transverse pivot Starts rotating counterclockwise around 5 During this rotation, the input protrusion 1
At the moment when the contact point between 4 and the intermediate seat 13 crosses the center line in the front-rear direction of the transverse pivot 5 downward, the rotational moment due to the elastic restoring force of the spring 11 is reversed.

Thus, the handle 4 is rotated counterclockwise in FIG. 2 about the transverse pivot 5 until the proximal end back surface portion 28 of the handle 4 abuts the front slope portion 29 of the back wall portion 9 of the fixed case 1. , Jump out and rotate. In this projecting position, the main part of the handle is gripped by the operator, the locking shaft 3 is rotated, the clasp plate 8 is released from the strike on the box body side, and the door 27 is unlocked. The unlocked door 27 is opened by pulling the handle 4 forward.

In the illustrated embodiment, the locking shaft 3 is composed of a large diameter portion 3a and a small diameter portion 3b.
In the annular groove 15 formed on the outer peripheral surface of the rear end portion a, a ring-shaped seal member 16 that contacts the inner peripheral surface of the shaft tube portion 2 is accommodated. A ring-shaped seal member 19 that is in contact with the inner peripheral surface of the rear end opening 18 of the shaft tube portion 2 is fitted to the outer peripheral surface of the root portion of the small diameter portion 3b. A rear end angular shaft portion 35 of the small-diameter portion 3b of the locking shaft 3 is fitted in a rectangular recess 20 formed on the front surface of the thick plate-shaped clasp plate 8 so as not to be relatively rotatable.

The fixing screw hole 6 of the clasp plate 8 is disposed on the center line of the locking shaft 3, and the longitudinal center line of the transverse pivot 5, which is the reference line for forming the spring receiving recess 10, is used for the fixing. The screw holes 6 are arranged in an offset shape shifted downward from the screw holes 6. A finger pressing recess 21 formed in front of the base end portion of the handle 4 is disposed on the upper side of the transverse pivot 5, and a main portion of the handle 4 held by an operator extends below the transverse pivot 5. ing.

At the lower part of the main part of the handle 4, the lock housing cylinder part 22 projects to the back side. When a predetermined key (not shown) is inserted into the lock cylinder 23 rotatably accommodated in the lock accommodating cylinder portion 22 from a key hole 24 opened on the front surface side, the lock cylinder 23 is arranged with respect to the lock accommodating cylinder portion 22. A known locking mechanism such as a pin tumbler method, a disk tumbler method, a side bar method, or the like, which is set so as to release the lock of the lock cylinder 23, is incorporated. Locking grooves 38 engaged with locking members such as pin tumblers constituting the locking mechanism are provided on the inner surface of the lock housing cylinder portion 22 at intervals of 90 degrees.

At the tip of the lock cylinder 23, a transverse slot 39 is formed at a portion protruding from the tip surface 36 of the lock housing cylinder 22, and the plate-like stop tumbler 25 is press-fitted into the slot 39. It is supposed to be fixed. As shown in FIG. 3, on the outer sides of the pair of leg portions of the stop tumbler 25, locking shoulder portions 40, 41 are formed at two locations. As shown in FIG. 8, the pair of inner wall surfaces of the slot 39 are formed with locking step portions 42 and 43 at two locations, respectively, and the locking step portions 42 and 43 and the locking shoulder portion. The stop tumbler 25 is prevented from escaping from the slot 39 by elastic engagement with 40 and 41.

The lock cylinder 23 is attached to the handle 4 by inserting the lock cylinder 23 from the front side into the lock accommodating cylinder 22 and then press-fitting the stop tumbler 25 into the groove 39. Is called.

A fixing screw hole 31 for an adapter 30 for attaching the fixing case is formed in the front-rear direction at the center of the back wall portion 9 of the fixing case 1. The fixed body 1 is inserted into the mounting opening 32 of the door 27 from the front side, and the adapter 30 is placed on the back wall 9 of the fixed case 1 from the back side of the door 27. The bolt 34 inserted from 33 is screwed into the fixing screw hole 31. By tightening the bolt 34, the adapter 30 is pressed against the back surface of the door 27, the outer peripheral flange of the fixed body 1 is pressed against the front surface of the door 27, and the fixed case 1 is attached to the door 27.

It is a front view of the lock state of the lock handle device for doors concerning one example of the present invention. It is the sectional view on the AA line of FIG. It is a front view of the stop tumbler integrated in the lock handle apparatus for doors of FIG. It is a front view of the lock cylinder integrated in the lock handle apparatus for doors of FIG. It is a right view of the lock cylinder of FIG. It is a rear view of the lock cylinder of FIG. FIG. 2 is a longitudinal sectional view of a main part when the lock cylinder is inserted into the lock housing cylinder portion of the handle and the stop tumbler is press-fitted and fixed to the rear end portion of the lock cylinder in the door lock handle device of FIG. 1. It is the BB sectional view taken on the line of FIG. In the door lock handle device of FIG. 1, it is a principal part cross-sectional view which shows the state which the edge part of the stop tumbler engaged with the lock | rock receiving part of the fixed case.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Fixed case 2 Shaft cylinder part 3 of a fixed case Locking shaft 3a Large diameter part 3b of a locking shaft Small diameter part of a locking shaft
4 Handle 5 Transverse pivot 6 Fixing screw hole 7 Bolt 8 Clasp plate 9 Back wall portion 10 of the fixing case Spring receiving recess 11 Compression coil spring 12 Seat receiving recess 13 Intermediary seat 14 Input protrusion 15 of the handle Large locking shaft Annular groove 16 in the diameter portion Seal member 18 Rear end opening 19 of the shaft tube portion Seal member 20 Square concave portion 21 of the clasp plate Finger pushing portion 22 of the handle Lock receiving tube portion 23 of the handle Lock cylinder 24 Key hole 25 Stop tumbler 25a End portion 25b of stop tumbler End portion 26 of stop tumbler Locking receiving portion 27 of fixed case Door 28 Back end portion of handle 29 Front inclined surface portion 30 of rear wall portion of fixing case Adapter 31 for fixing adapter screw hole 32 Door mounting opening 33 Adapter through-hole 34 Fixing bolt 35 Locking shaft rear end corner shaft portion 36 Lock accommodating tube portion Front end surface 37 Side wall portion 38 of the fixing case Locking groove 39 of the lock receiving cylinder portion Slot hole 40 of the lock receiving cylinder portion Stopping shoulder portion 41 of the stop tumbler Stopping shoulder portion 42 of the stop tumbler Locking step portion of the groove hole 43 Locking step of slot

Claims (1)

A locking shaft 3 is fitted and inserted into a shaft tube portion 2 in the front-rear direction of the fixed case 1, and a proximal end portion of a handle 4 is connected to a front end portion of the locking shaft 3 by a transverse pivot shaft 5, and a rear end portion of the locking shaft 3 A clasp plate 8 is fixed to the locking shaft 3 and the handle 4 so that the handle 4 alternately takes two stable states of an immersion position and a protruding position with respect to the fixed case 1. In the door lock handle device in which a handle posture holding mechanism for biasing is provided, and a lock mechanism for locking the handle 4 to the fixed case 1 when in the retracted position is incorporated on the distal end side of the handle 4 , The locking mechanism
A lock accommodating tube portion 22 formed to protrude toward the rear wall portion 9 of the fixed case at the distal end portion of the handle 4;
A lock cylinder 23 rotatably housed in the lock housing cylinder 22 and having a built-in locking mechanism for the fixed body 1;
The lock cylinder 23 protrudes from the front end opening of the lock housing cylinder portion 22 and is fixed to the rear end portion of the lock cylinder 23 in the diametrical direction. Both end portions 25a and 25b are engaged with the front end surface 36 of the lock housing tube portion 22. A forked plate-like stop tumbler 25 ,
A lock formed on the side wall 37 of the fixed case 1 and engaged with one end 25a of the stop tumbler 25 when the lock cylinder 23 is rotated to the lock position at the retracted position of the handle 4. It consists of a receiving part 26 ,
A transverse groove 39 is formed at a portion of the lock cylinder 23 that protrudes from the tip surface 36 of the lock accommodating cylinder portion 22, and each of the pair of legs of the bifurcated stop tumbler 25 is formed. Locking shoulders 40 and 41 are formed on the outer side at two locations with steps along the length direction, and the locking stepped portions 42 and 43 are formed on the pair of inner wall surfaces of the groove 39 in the length direction. It is formed in two places with a step along it,
After inserting the lock cylinder 23 into the lock accommodating cylinder portion 22 from the front side of the handle 4,
The forked plate-like stop tumbler 25 is press-fitted into the slot 39 along the length direction thereof, and the locking step portions 42 and 43 and the locking shoulder portions 40 and 41 are elastically engaged. A door lock handle device characterized by that.

Images