JP2810643B2 - Picking handle Locking device for a falling door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD [0001] The present invention relates to a method for extracting
The present invention relates to a door lock device in which only a handle is held at a lying position in contact with a front surface of an outer cylinder .

[0002]

2. Description of the Related Art A conventional door lock device only has a function of locking a door to a fixed frame, and a separately attached knob member is used to open the door. However, for convenience of the picking operation, the picking member is provided so as to protrude from the front surface of the door. May be invited.

[0003]

OBJECTS OF THE INVENTION It is an object of present invention thus, when not in use the handle knob is properly held in the laid posture, the handle knob is in use the door is unlocked
Is to automatically protrude to a position where the knob can be picked up, and to provide a lock device for a falling handle-type door for a knob in which the opening operation of the door is performed lightly and smoothly.

[0004]

Means for Solving the Problems Hereinafter, a lock device for a door according to the present invention will be described with reference numerals in the accompanying drawings.
An outer cylinder 2 fixed to the door 1; an inner cylinder 3 fitted in the outer cylinder 2 so as to be axially movable and non-rotatably; an inner cylinder 3 fitted in the front portion of the inner cylinder 3 so as to be movable in the axial direction. Inner flange 6 of tube 3
A front locking shaft 5 provided with a locking projection 8 engaging and disengaging with a locking groove 7 on the rear surface side and a driving shaft portion 9 provided on the rear surface side; The drive shaft 9 of the front lock shaft 5 is fitted on the front side so that it cannot move in the direction, and the drive shaft 9 is fitted on the front side so that the drive shaft 9 can move in the axial direction and cannot rotate. A rear lock shaft 10 having a stopping projection 13 projecting in a diametrical direction on an outer surface of the outer cylinder 2; a hole 2 arranged on the front side of the outer cylinder 2 and fitting the front part of the inner cylinder 3.
6b is provided so as to be interlocked with the front end of the inner cylinder 3, and has a handle 26 for pivoting whose base end is pivotally connected to the outer cylinder 2 by a pivot 33.

Further, the door lock device is disposed on the rear surface side of the outer cylinder 2 and is fixed to the connecting shaft portion 12 of the rear lock shaft 10;
And a key 17 that is inserted into the front lock shaft 5 to engage with the front receiving portion 16 of the front lock shaft 5 to rotate the front lock shaft 5; Spring 18 for urging the inner cylinder 3 forward; inner cylinder 3 and rear lock shaft 1
0, and is fixed to the inner cylinder 3 and has a regulating cylinder 23 provided with a circumferential lateral groove 24 and a continuous axial longitudinal groove 25 at the end of the lateral groove 24.

[0006]

When the lock plate 14 is in the position where the door 1 is locked with respect to the fixed frame as shown in FIG. 3, the lock projection 8 of the front lock shaft 5 is engaged with the lock groove 7 of the inner cylinder 3. Therefore, the front lock shaft 5 cannot rotate with respect to the inner cylinder 3, and the drive shaft portion 9 of the front lock shaft 5
, The rear lock shaft 10 cannot rotate with respect to the inner cylinder 3. Since the stopping protrusion 13 of the rear lock shaft 10 is engaged with the start end of the lateral groove 24 of the regulating cylinder 23, the inner cylinder 3 is stopped at the position retracted into the outer cylinder 2 despite the bias of the spring 18. The main body of the inner cylinder 3
The portion is held in a position retracted in the outer cylinder 2.

When the key 17 is engaged with the front receiving portion 16 of the front lock shaft 5 and pushed in as shown in FIG. 4, the front lock shaft 5 is retracted against the bias of the spring 18, and Position lock shaft 5
The lock projection 8 is detached from the lock groove 7 of the inner cylinder 3. As a result, the rotation lock of the front lock shaft 5 with respect to the inner cylinder 3 is released. Therefore, when the key 17 is pressed and rotated as shown in FIG. 5, the front lock shaft 5 and the rear lock shaft 10 are integrated. And the lock plate 14 comes to the unlocked position. As a result, the lock of the door 1 with respect to the fixed frame is released, and the door 1 can be opened.

When the lock plate 14 rotates to the unlocking position in this manner, the stop projection 13 of the rear lock shaft 10
Has reached the end of the lateral groove 24 of the regulating cylinder 23. As shown in FIG. 6, when the key 17 is removed from the keyhole 15 of the outer cylinder 2, the inner cylinder 3 moves forward by the urging force of the spring 18 acting via the front lock shaft 5, and the rear lock shaft 10 The restraining projection 13 enters the vertical groove 25 of the regulating cylinder 23. Inner cylinder 3
When the front end protrudes from the front side of the outer cylinder 2 by a predetermined length, the stopper projection 13 contacts the inner bottom surface of the vertical groove 25 and stops the inner cylinder 3 from further projecting. At the same time, the knob 26, which is interlocked with the front end of the inner cylinder 3, rises around the pivot 33. The opening operation of the door 1 is performed by the knob 2 for picking which is in the protruding position.
6 is performed.

When the front end of the inner cylinder 3 is pushed into the outer cylinder 2 after the door 1 is closed, the stop projection 13 of the rear lock shaft 10 enters the end of the lateral groove 24 of the regulating cylinder 23. Then, when the front lock shaft 5 and the rear lock shaft 10 are rotated in the reverse direction by the key 17, the lock plate 14 returns to the locked position again, and the stop projection 13 of the rear lock shaft 10 is moved to the starting end of the lateral groove 24 of the regulating cylinder 23. To reach. Insert the key 17 into the keyhole 15
When the front lock shaft 5 is pulled out from the inner cylinder 2, the front lock shaft 5 is slightly advanced by the bias of the spring 18.
In the locking groove 7.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the illustrated embodiment, a non-circular key recess 16a having a recessed central portion is provided in a front receiving portion 16 of a front lock shaft 5 in order to prevent unauthorized unlocking as much as possible. ing. The shape of the front receiving portion 16 of the front lock shaft 5 is not limited to this, and a shape that makes it impossible or difficult to apply a normal driver, scissors, or the like is appropriately selected. The collar 34 is rotatably fitted to the front end of the inner cylinder 3 so that the shape of the front receiving portion 16 cannot be determined from the outside. The regulating cylinder 23 is fixed to the inner cylinder 2 by a fixing pin 27 in a diametric direction. A spherical click member 22 is accommodated in the diametrical receiving hole 19 of the front lock shaft 5, and the click member 22 urged by the spring 20 is attached to the inner surface receiving grooves 21, 21 of the inner cylinder 3.
To inform the user of the rotational position of the front lock shaft 5 by an engagement sound or a touch. Since the opening angle between the start end and the end of the lateral groove 24 of the regulating inner cylinder 23 is 90 degrees, the inner surface receiving grooves 21 and 21 are provided at intervals of 90 degrees corresponding to this.

The urging spring 18 of the inner cylinder 3 and the click member 2
Each of the biasing springs 20 is formed of a compression coil spring. A locking projection 4 and a driving recess 32 are provided on the outside of the front end of the inner cylinder 3. A passive shaft portion 26 a provided in the inner surface of a hole 26 b of the handle 26 in the diametrical direction utilizes the elasticity of both members. And is fitted into the recess 32. A passive shaft portion 26a is engaged with the concave portion 32 before and after the up / down rotation of the picking handle 26. The interlocking shaft portion 9 of the front lock shaft 5 is formed in a square cross section, and the passive hole 11 of the rear lock shaft 10 is also formed in a square shape. The cross section of the connecting shaft portion 12 of the rear lock shaft 10 is rectangular, and the lock plate 14 fitted thereto is fixed to the rear lock shaft 10 by bolts 28. In the lock plate 14,
Although a locking portion that can be directly engaged and disengaged can be provided in the receiving portion on the fixed frame body side, in this embodiment, a connection hole 29 to which another lock member that is engaged and disengaged with the receiving portion on the fixed frame body is connected to the lock plate. 14. The outer cylinder 2 inserted into the mounting hole 31 of the door 1 from the front side is fastened and fixed to the door 1 by a nut 30. The outer peripheral section of the inner cylinder 3 is formed in a so-called oval shape having flat portions on both left and right sides, and the inner peripheral section of the outer cylinder 2 is similarly formed. Therefore, the inner cylinder 3 cannot rotate with respect to the outer cylinder 2.

[0012]

As described above, in the door lock device according to the present invention, the stop protrusion 13 of the rear lock shaft 10 is
The main part of the inner cylinder 3
The front end of the inner cylinder 3 is restrained at a position retracted into the outer cylinder 2.
When the knob 26 is not in use, the handle 26 is engaged with the outer cylinder 2.
For being properly held in contact with the laid posture in front, hysterectomy
Only handle 26 may become an obstacle to the passage, there is no possibility of causing damage to the passerby clothing and utensils or knob handle 26 itself.

When the lock plate 14 comes to the unlocking position and the stopping projection 13 of the rear lock shaft 10 enters the vertical groove 25 of the regulating cylinder 23, the inner cylinder 3 is biased by the spring 18 to move the inner cylinder 3 to the outer cylinder. 2 moves in the axial direction, and interlocks with the inner cylinder 3
The knob 26 rises up around the pivot 33 and rotates to automatically tilt and project toward the front side of the outer cylinder 2.

[Brief description of the drawings]

FIG. 1 is a front view showing a locked state of a door lock device according to an embodiment of the present invention.

FIG. 2 is a bottom view of a handle used in the door lock device.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a cross-sectional view of the lock handle device for a door in a key pressed state.

FIG. 5 is a sectional view of the door lock handle device in a key-pressed state.

FIG. 6 is a cross-sectional view of the door lock handle device in a key-removed state.

FIG. 7 is a perspective view of a regulating cylinder used in the door lock handle device.

FIG. 8 is a sectional view taken along the line BB of FIG. 3;

FIG. 9 is a sectional view taken along the line CC of FIG. 3;

FIG. 10 is a sectional view taken along line DD of FIG. 6;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Door 2 Outer cylinder 3 Inner cylinder 4 Locking part of inner cylinder 5 Front locking shaft 6 Inner flange of inner cylinder 7 Lock groove of inner cylinder 8 Locking projection of front locking shaft 9 Drive of front locking shaft Shaft 10 Rear lock shaft 11 Passive hole of rear lock shaft 12 Connection shaft of rear lock shaft 13 Stopper projection of rear lock shaft 14 Lock plate 15 Keyhole 16 Front receiving portion of front lock shaft 17 Key 18 Inner cylinder biasing spring 19 Front lock shaft click member receiving hole 20 Click member biasing spring 21 Inner cylinder inner surface receiving groove 22 Click member 23 Restriction cylinder 24 Restriction cylinder lateral groove 25 Restriction cylinder longitudinal groove 26 Handle for picking 27 Fixing pin of regulating inner cylinder 28 Locking bolt of lock plate 29 Connecting hole of lock member 30 Nut for fixing of outer cylinder 31 Mounting hole of outer cylinder of door 32 Drive annular recess of inner cylinder 33 Pivot shaft 34 Collar

Claims (1)

(57) [Claims] 1. An outer cylinder 2 fixed to a door 1; an inner cylinder 3 fitted in the outer cylinder 2 so as to be axially movable and non-rotatable.
And; fitted into the front portion of the inner cylinder 3 so as to be movable in the axial direction,
A front locking shaft 5 having a locking projection 8 provided on a front surface thereof for engaging and disengaging with a locking groove 7 on a rear surface side of an inner flange portion 6 of the inner cylinder 3 and a driving shaft portion 9 provided on a rear surface side; The passive hole 1 in which the drive shaft 9 of the front lock shaft 5 is rotatably and non-rotatably fitted into the rear portion of the vehicle, and into which the drive shaft 9 of the front lock shaft 5 is rotatably and non-rotatably fitted.
1 is provided on the front side, the connecting shaft portion 12 is provided on the rear surface side, and the rear lock shaft 10 having a diametrically projecting stop projection 13 on the outer surface of the front end portion and the front side of the outer cylinder 2 are arranged on the front side. A handle 26, which is provided so as to be interlocked with the front end of the inner cylinder 3 and has a base end pivotally connected to the outer cylinder 2 by a pivot 33; a rear surface of the outer cylinder 2; Placed on the side,
A lock plate 14 fixed to the connecting shaft portion 12 of the rear lock shaft 10; a lock plate 14 inserted through the front keyhole 15 of the outer cylinder 2 and engaged with the front receiving portion 16 of the front lock shaft 5; 5
Key 7 for rotating the key; passive hole 11 of rear lock shaft 10
And a spring 18 for urging the front lock shaft 5 to move forward; and a spring 18 housed between the inner cylinder 3 and the rear lock shaft 10 and fixed to the inner cylinder 3, and a circumferential lateral groove 24. A regulating cylinder 23 provided with a continuous axial groove 25 at the end of the lateral groove 24, and when the lock plate 14 is in the locked position,
The locking projection 8 of the front locking shaft 5 is engaged with the locking groove 7 of the inner cylinder 3, and the locking projection 13 of the rear locking shaft 10 is
Is positioned within the starting end of the lateral groove 24 of the inner cylinder 3.
Is held in the outer cylinder 2 at the retracted position, and the inner cylinder 3
Of the knob 26 engaged with the front end of the outer cylinder 2
Knob to be held in the lying position in contact with the front
Locking device for a handle-down door.