JP2704861B2 - Locking device for door lock handle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking device for a door lock handle in a double door or the like provided at the rear or side of a container of a van type vehicle or a cargo truck.

[0002]

2. Description of the Related Art As shown in FIG. 10, a conventional latch device includes a substrate 60 fixed to a door 59, a bracket plate 62 fixed to a lower portion of the substrate 60 with a fixing member 61,
And a latch plate 64 pivotally mounted on a pivot 63 at the upper part of the bracket, and a door opening / closing handle 65 is held between the bracket plate 62 and the bent plate portion of the latch plate 64. Bracket plate 6
2 and a through hole 67 at the tip of the latch plate 64.
Is hooked through a hook bar 69 of a padlock 68.

However, in this latch device, the door 59
To unlock the padlock, a key 71 is attached to the rotor 70 of the padlock 68.
Is inserted to release the lock of the hook bar 69, then the hook bar 69 is removed from the through hole 66 of the bracket plate 62 and the through hole 67 of the latch plate 64, and then the latch plate 6 is pivoted about the pivot 63.
4, the door opening / closing handle 65 is pivoted slightly upward to release the engagement with the bent portion of the bracket plate, and then the door opening / closing handle needs to be pulled forward and rotated. For this reason, the operation is complicated, and the configuration is not suitable for one-handed operation. Therefore, when carrying the luggage in the hand, the operation must be performed after the luggage is once placed on the ground.

Further, in the conventional latch device, the door is closed from the front side when entering the container and the handle is locked, or a lock unit provided in the latch device of the door lock handle is provided. The door may be fully locked by operation.

[0005] The trapped person must loudly call for outside help, but when the locker leaves immediately in front of the door, the voice does not reach, so when the next operation of the cargo truck is started Until it is left in the container.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a locking device for a lock handle for a door, in which both locking and unlocking of a lock handle can be quickly performed by a simple one-handed operation. It is.

It is a further object of the present invention to provide a locking device for a door lock handle that can be unlocked and released immediately from the inside even when the door is fully locked by a lock unit from the front side of the door. .

[0008]

The latch device for a lock handle for a door according to the present invention will now be described with reference to the accompanying drawings in which the front plate 3 of a case 2 fixed to the door 1 is provided.
A receiving groove 5 into which a door lock handle 4 is inserted from the front side is provided in the center of the lock groove. The lock groove 8 is composed of a locking projection 6 and a passive projection 7, and accommodates the door locking handle 4. The first latch lever 9 provided at the lower end is pivotally connected to the case 2 by a horizontal pivot 10 above the receiving groove 5 and is urged to rotate in the front direction by a spring 11 so as to be passively connected to the locking projection 12. Spike 1
A lock groove 14 for receiving the door lock handle 4
A second latch lever 15 provided at the upper end portion is pivotally connected to the case 2 by a horizontal pivot 16 below the receiving groove 5 so that the spring 1
7 urges to rotate in the front direction.

Lock groove 18 at the base end of first latch 9
Arm 19 which engages with and disengages from the arm
The first lock plate 21 composed of the
9 is pivotally connected to the case 2 by a pivot 22 at the upper right side of FIG.
A second lock plate 27 composed of a lock arm 25 engaging and disengaging from a lock groove 24 at the base end of the latch lever 15 and a release arm 26 perpendicular to the lock arm 25 is moved to the lower right of the second latch lever 15. At a position pivotally attached to the case 2 by means of a pivot 28 and biased clockwise by means of a spring 29.

A push guide 30 slidable left and right is provided at the center of the case 2, and the right end of the push guide 30 has the tip of the release arm 20 of the first lock plate 21 and the second guide.
A projection 31 is provided for engagement with the distal end of the release arm 26 of the lock plate 27.
The guide lever 36 is pivotally connected to the tip of an operation plate 34 fixed to the rotor 33 of the lock unit 32 by a pivot 35, and the left side surface of the guide lever 36 is pushed by a push guide. 30 to the right side.

Below the guide lever 36, a push button 37 is pivotally connected to the case 2 by a vertical pivot 38 so that the spring 3
9, when the lock unit 32 is unlocked on the horizontal plate portion 40 of the push button 37.
6 is provided with a groove 41 into which the front end portion enters, an opening 42 is provided at the lower right of the front plate 3 of the case 2 for fitting the push button 37, and an open lever 43 is provided on the rear side of the push guide 30 to protrude. Then, the release lever 43 is made to protrude from a lever hole 45 provided in the back plate 44 of the case 2.

[0012]

As shown in FIG. 1, the door 1 is connected to the side column 48 of the container body 47 by the hinge 46. After the door 1 is closed, the lock shaft 50 supported by the bearing plate 49 is locked to the door lock handle 4. The lock cams 51 at the upper and lower ends of the lock shaft 50 are
The door 1 is restrained to the closed position in order to engage the cam keeper 52 of the upper and lower frame members.

When the door lock handle 4 is rotated to restrain the door 1 in the closed position, the door lock handle 4 is inserted into the receiving groove 5 of the front plate 3 of the case 2. During this insertion operation, the door lock handle 4 is moved between the passive latch 7 of the first latch lever 9 and the second latch lever 1.
5 is brought into contact with the passive projection 13. The door lock handle 4 is further inserted into the receiving groove 5, and the passive projection 7 of the first latch lever 9 and the second latch lever 1 are pressed against the bias of the springs 11 and 17.
5, the first latch lever 9 rotates rearward about the horizontal pivot 10, while the second latch lever 15 rotates rearward about the horizontal pivot 16.

In this manner, the door lock handle 4 is inserted to the deepest portion of the receiving groove 5 of the front plate 3 of the case 2, and
At the moment when the latch lever 9 and the second latch lever 15 are pushed to the innermost position, the tip of the lock arm portion 19 of the first lock plate 21 urged to rotate counterclockwise by the spring 23,
Enters the lock groove 18 at the base end of the first latch lever 9,
The distal end of the lock arm 25 of the second lock plate 27 urged clockwise by the spring 29 enters the lock groove 24 at the base end of the second latch lever 15. At this time, the lock handle for the door is locked with the locking groove 8 of the first latch 9.
The locking protrusions 6 of the first latching lever 9 and the locking protrusions 12 of the second latching lever 15 are accommodated in the locking grooves 14 of the latching lever 15.
Engages with the front surface of the door lock handle 4. Thereby, the door lock handle 4 is prevented from being pulled out of the receiving groove 5, and the door 1 is locked at the closed position.

In order to unlock the door 1, the rotor 33 of the lock unit 32 is turned by a key 53 in a predetermined direction so as to be unlocked.
The operation plate 34 fixed to the table 33 is rotated downward, and the guide lever 36 pivotally attached to the operation plate 34 by the pivot 35 is slid downward along the guide plate 54 fixed to the case 2. The leading end of the guide lever 36 is inserted into the groove 41 of the horizontal plate 40 of the push button 37 to connect the guide lever 36 and the push button 37. When the push button 37 is pushed around the vertical pivot 38, the guide lever 36 rotates to the left in conjunction with this, and the push guide 30 that contacts the left side surface of the guide lever 36 slides to the left. , Push guide 30
The release arm 20 of the first lock plate 21 and the release arm 26 of the second lock plate 27 which are engaged with the projection 31 are pushed leftward. As a result, the first lock plate 21 rotates clockwise and the second lock plate 27 rotates counterclockwise, and the lock arm 19 of the first lock plate 21 is moved from the groove 18 of the first latch lever. The lock arm 25 of the second lock plate 27 comes off the groove 24 of the second latch lever, and the spring 1
1, the first latch lever 9 is moved by the spring 17 to the second latch lever 9.
The latch levers 15 are respectively urged to rotate to the front side, and the door lock handle 4 projects to the front side.

In order to fully lock the door 1, the lock unit 3
The key 53 is inserted into the second rotor 33 and the rotor 33 is turned in a predetermined direction to rotate the operation plate 34 fixed to the rotor 33 upward. The guide lever 36 is slid upward and the tip of the guide lever 36 is disengaged from the groove 41 of the horizontal plate 40 of the push button 37 to separate the guide lever 36 from the push button 37. At this time, even if the push button 37 is pressed, the guide lever 36 does not interlock, the unlocking mechanism does not work, the door lock handle 4 is fixed in a locked state, and the door 1 is fully locked.

To release the lock of the door lock handle 4 from inside the container, the lever on the rear plate 44 of the case 2 is used.
The release lever protruding from the hole 45 is slid rightward, and the push guide 30 is slid leftward toward the front. The lock release unit is locked by the unlocking mechanism, and the guide lever 36 and the push button are pressed. Even if 37 is in the separated state and the door 1 is fully locked, the door 1 is opened.

[0018]

DETAILED DESCRIPTION OF THE INVENTION In the illustrated embodiment, a spring 1 is shown.
1, the spring 17 and the spring 39 are torsion springs,
The spring 29 is a coil spring. A contact portion of the right side surface of the push guide 30 with the guide lever 36 is formed in an arc plane.

The front plate 3 and the back plate 44 of the case 2 are screwed and screwed into screw holes 55 at three corners from the rear side. The case 2 is fixed to the door 1 by screwing fixing screws 58 into the two screw holes 57 at the bottom of the receiving groove 5 from the front side.

[0020]

As described above, in the locking device for a door lock handle of the present invention, when the door lock handle 4 is pushed into the receiving groove 5 of the front plate 3 of the case 2, the first latch lever 9 and the second The second latch lever 15 rotates in the locking direction, and the door lock handle 4 is accommodated in the locking groove 8 of the first latch lever 9 and the locking groove 14 of the second latch lever 15, and the first latch is rotated. Lever-9
The locking projection 6 of the second latch lever 15 and the locking projection 12 of the second latch 15 automatically engage with the front surface of the lock handle 4 for a door.
When the push button 37 is pressed, the guide lever-3 is interlocked with this.
6, the push guide 30, the first lock plate 21 and the second lock plate 27 act to automatically release the door lock handle 4 from the first latch lever 9 and the second latch lever 15. Both the locking and unlocking of 1 can be quickly performed by a simple one-handed operation.

An open lever 43 is provided on the rear side of the case 2.
So that even if the door 1 is in a fully locked state,
It is possible to easily unlock the door lock handle 4 and unlock the door 1 from inside the container.

[Brief description of the drawings]

FIG. 1 is a front view of a container-door using a latch device for a door lock handle according to an embodiment of the present invention.

FIG. 2 is a front view of the latch device in a locked state.

FIG. 3 is a rear view of the latch device in a locked state.

FIG. 4 is a right side view of the latch device in a locked state.

FIG. 5 is a bottom view of the latch device in a locked state.

FIG. 6 is a central sectional view of the latch device in a locked state.

FIG. 7 is a central sectional view of the latch device in an unlocked state.

8 is a sectional view taken along line A-A 'of FIG.

9 is a sectional view taken along line B-B 'of FIG.

FIG. 10 is a perspective view of a door using a conventional latch device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Case 3 Front plate 4 Door lock handle 5 Receiving groove 6 Locking protrusion 7 Passive protrusion 8 Locking groove 9 First latch lever 10 Horizontal pivot 11 Spring 12 Locking protrusion 13 Passive protrusion 14 Lock groove 15 Second latch lever 16 Horizontal pivot 17 Spring 18 Lock groove 19 Lock arm 20 Release arm 21 First lock plate 22 Axis 23 Spring 24 Lock groove 25 Lock arm 26 Release arm 27 second lock plate 28 pivot 29 spring 30 push guide 31 projection 32 lock unit 33 rotor 34 operation plate 35 pivot 36 guide lever 37 push button 38 vertical pivot 39 spring 40 horizontal plate 41 groove 42 opening 43 open lever 44 Back plate 45 Lever hole 46 Hinge 47 Container body 48 Side column 49 Bearing plate 50 Lock shaft 51 Lock cam 52 -Par-53 Key 54 Guide plate 55 Screw hole 56 Screw 57 Screw hole 58 Fixing screw 59 Door 60 Base 61 Fixing tool 62 Bracket plate 63 Axis 64 Latch plate 65 Door opening and closing handle 66 Through hole 67 Through hole 68 Padlock 69 Hook Rod 70 Rotor 71 Key

Continued on the front page (51) Int.Cl. ⁶ Identification number Agency reference number FI Technical display location E05B 55/04 E05B 55/04

Claims (1)

(57) [Claims] 1. A receiving groove 5 into which a door lock handle 4 is inserted from the front side is provided in a central portion of a front plate 3 of a case 2 fixed to a door 1 in a transverse direction. A first latch lever 9 having a locking groove 8 formed at the lower end thereof and comprising a passive handle 7 for accommodating the door lock handle 4 is pivotally mounted on the case 2 by a horizontal pivot 10 above the receiving groove 5. The spring 11 is urged to rotate in the front direction, and the locking projection 12 and the passive projection 13
A second latch lever 15 provided at the upper end with a locking groove 14 for accommodating the door lock handle 4 is pivotally attached to the case 2 by a horizontal pivot 16 below the receiving groove 5 to form a spring 17.
The first lock plate is composed of a lock arm portion 19 which is urged to rotate in the front direction and is engaged with and disengaged from the lock groove 18 at the base end of the first latch lever 9 and a release arm portion 20 perpendicular to the lock arm portion. 2
1 is pivotally attached to the case 2 by a pivot 22 at the upper right side of the first latch lever 9 and is urged to rotate counterclockwise by a spring 23 to lock the lock groove at the base end of the second latch lever 15. A second lock plate 27 comprising a lock arm 25 engaging and disengaging from a lock arm 24 and a release arm 26 perpendicular to the lock arm 25 is pivotally connected to the case 2 by a pivot 28 at the lower right of the second latch lever 15. And urges the spring 29 to rotate clockwise,
A push guide 30 that slides left and right is provided at the center of the case 2, and the tip of the release arm portion 20 of the first lock plate 21 and the second lock plate 27 are provided at the right end of the push guide 30.
The lock unit 32 is fixed to the case 2 on the right side of the first lock plate 21, and the lock unit 32 is fixed to the rotor 33 of the lock unit 32. A guide lever 36 is pivotally connected to the tip of the fixed operation plate 34 by a pivot 35, and the left side surface of the guide lever 36 is brought into contact with the right side surface of the push guide 30, and a push button 37 is provided below the guide lever 36. Is pivotally connected to the case 2 by a vertical pivot 38, and is urged to rotate forward by a spring 39,
The horizontal plate portion 40 of the push button 37 is provided with a groove 41 into which the leading end of the guide lever 36 enters when the lock unit 32 is unlocked, and an opening into which the push button 37 is fitted to the lower right of the front plate 3 of the case 2. 42, a release lever 43 protruding from the rear side of the push guide 30, and a latch for a door lock handle in which the release lever 43 projects from a lever hole 45 provided in the rear plate 44 of the case 2. apparatus.