JPH0740042Y2 - Lock handle device for door with inner unlocking function - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is mounted on a door of a refrigerating / freezing container of a refrigerated vehicle, and is used for locking and locking the door to a fixed frame body such as a container body. The present invention relates to a door lock handle device.

[Prior Art] In a conventional lock handle device for a container door, a bearing plate portion is projectingly provided on a substrate fixed to the front side of the door, and the base end portion of the handle is pivotally attached to the bearing plate portion to lock the hinge. Connect the axes,
By inserting the lock shaft into a guide fitting projecting on the front side of the door, providing a latch on the container body side that engages with a catch at the tip of the lock shaft, and pulling and rotating the handle about the pivot. , The latch is disengaged from the receiving metal to unlock the door from the container body.

However, with this lock handle device, after locking the door to the container body, in order to prevent theft of luggage, the locking plate part protruding from the board is inserted into the long hole at the tip of the handle, The handle of the padlock is designed to be locked by inserting a padlock hook into the through hole of the protruding locking plate.

Therefore, when the door is accidentally closed and locked from the outside while working inside the container body, and the padlock is hung on the handle, the locked worker cannot unlock the door and escape by himself. If left unattended, there is a risk of frost and death.

[Problem to be Solved by the Invention] Therefore, an object of the present invention is to lock a door to a fixed frame body, and then firmly lock a handle to a case to prevent theft and lock the handle. (EN) A lock handle device for a container door with an inner unlocking function, which enables a person trapped in the state to unlock and escape from the inside accurately.

[Means for Solving the Problem] Hereinafter, referring to the reference numerals in the accompanying drawings, in the container door lock handle device of the present invention, the base end portion 3a of the handle 3 is attached to the case 2 fixed to the door 1. A lock 8 which is pivotally attached by a pivot 4 and which interlocks with the pivot 4 is provided with a latch 8 for engaging and disengaging a catch 7 on the fixed frame 6 side.

Receiving shaft 10 protruding from bottom wall plate 9 of case 2 and tip hook portion 12
The latch lever 11 that engages and disengages is pivotally attached to the handle 3 by the pivot shaft 13, and the spring 14 urges the latch lever 11 to rotate in the direction of separating from the receiving shaft 10.

The tip claw 17 engages with the side shoulder 15 of the latch lever 11 to pivot the pivot lever 18 parallel to the pivot 13 to the handle 3, and the spring 19 engages the trigger lever 16 to the latch lever 11. Energize in the direction of rotation. The trigger lever (16) is provided with a stop projection (20) that engages with a side shoulder (15) when the tip hook portion (12) of the latch lever (11) is separated from the receiving shaft (10).

It is inserted from the through hole 21 of the bottom wall plate 9 of the case 2, and the passive end 24 of the trigger lever 16 is inserted into the main body of the handle 3 at the tip 23.
An inner operating rod 22 for pushing the trigger lever 16 toward the rear surface 3d of the 3b and rotating the trigger lever 16 in a direction in which the tip claw portion 17 is detached from the side surface shoulder portion 15 of the latch lever 11 is provided inside the door 1.

The lock unit 57 is provided on the front part of the handle 3, and the rotor 58 is attached to the joint member 77 that rotates integrally with the rotor 58 of the lock unit 57.
The drive protrusion 71 is provided at a portion eccentric to the rotation center of
A lock plate 59 is slidably fitted in a receiving groove 70 parallel to the bottom wall plate 9 of the case 2, and an L-shaped guide groove 73 into which a drive protrusion 71 is inserted is provided in the lock plate 59.

Engage with the side receiving portion 60 of the latch lever 11 to engage the latch lever 11
A lock projection (59) is provided on the lock plate (59) to prevent rotation of the lock lock in the unlocking direction. When the restraining protrusion 61 is located at a position that prevents the latch lever 11 from rotating in the unlocking direction, the drive protrusion 71 is moved to the guide groove.
It is provided so as to escape from the horizontally long groove portion 73a of 73 and be positioned at the inner end of the vertically long groove portion 73b of the guide groove 73.

An intermediate portion of the release lever 63 is pivotally attached to the bottom wall plate 9 of the case 2 by a pivot 62 perpendicular to the pivot 13. A drive protrusion 64 is provided at one end of the release lever 63 to push the passive end face 75 of the lock plate 59 to the retracted position where the stop protrusion 61 does not engage with the side receiving portion 60 of the latch lever 11. Inner operation rod 22 tip cam surface 65
A passive cam plate portion 66 that rotates the release lever 63 so that the locking plate 59 retracts to the retracted position in cooperation with is provided at the other end portion of the release lever 63.

The release lever 63 is rotationally biased by the spring 67 so that the passive cam plate portion 66 is in a position to close a part of the through hole 21 of the bottom wall plate 9.

[Operation] Insert the hand into the empty space of the case 2, and the main part of the handle 3
When 3b and the passive end 24 of the trigger lever 16 are grasped together and the passive end 24 is attracted to the main body part 3b side of the handle 3, the trigger lever 16 resists the bias of the spring 19 and the pivot lever 18 is centered around the pivot 18. The tip claw portion 17 is disengaged from the side surface shoulder portion 15 of the latch lever 11.

Therefore, the latch lever 11 released from the restraint by the trigger lever 16 is rotated about the pivot shaft 13 by the bias of the spring 14. When the side shoulder 15 engages with the stop projection 20 of the trigger lever 16, the rotation of the latch lever 11 is blocked, and the latch lever 11 and the trigger lever 16 are held in the rotation position.

During rotation of the latch lever 11, the tip hook portion 12 of the latch lever 11 is disengaged from the receiving shaft 10 of the bottom wall plate 9, whereby the locking and locking of the handle 3 with respect to the case 2 is released. Therefore, as shown in FIG. 9, when the handle 3 is pulled out from the case 2 and rotated about the pivot 4 against the bias of the spring 25, the lock shaft 5 rotates integrally with the pivot 4.

By the rotation of the lock shaft 5, the latch 8 is disengaged from the lock 7 on the side of the fixed frame 6, so that the locking and locking of the door 1 with respect to the solid frame 6 is released, and the main portion 3b of the handle 3 is further pulled out. The door 1 is opened. When the hand is released from the handle 3, the handle 3 is returned and rotated toward the inside of the case 2 by the bias of the spring 25.

After the loading and unloading of luggage is completed, the door 1 is closed and the handle 3
When the whole is pushed into the case 2, the passive edge surface 12a of the tip hook portion 12 contacts the receiving shaft 10, so that the latch lever 11 rotates against the bias of the spring 14, and the tip hook portion 12 is By deeply engaging the receiving shaft 10, the handle 3 is again locked and locked with respect to the case 2.

Following the rotation of this latch lever 11, the trigger lever
As the spring 16 is rotated by the biasing force of the spring 19, the stop protrusion 20 of the trigger lever 16 causes the side shoulder portion of the latch lever 11 to move.
The tip claw portion 17 of the trigger lever 16 is engaged with the side surface shoulder portion 15 by detaching from the trigger lever 16. By the engagement of the side surface shoulder portion 15 and the tip claw portion 17, the latch lever 11 is restrained in the locking position.

After locking the door 1 to the fixed frame 6 and locking the handle 3, a predetermined key 78 is attached to the rotor 58 of the lock unit 57.
Is inserted, the rotor 58 is rotated in a predetermined direction to advance the locking plate 59, and the blocking projection 61 is engaged with the side surface receiving portion 60 of the latch lever 11. As a result, the handle 3 is firmly locked to the case 2, and the handle 3 cannot be operated without the key 78.

When in the retracted position, the drive protrusion 71 is engaged with the end portion of the laterally elongated groove portion 73a of the L-shaped guide groove 73 as shown in FIG.

When the rotor 58 and the joint member 77 are rotated by a predetermined angle by the key 78, the drive protrusion 71 is moved to the laterally elongated groove portion 73a as shown in FIG.
From the end of the to the inner end of the vertical groove 73b, the lock plate 5
9 moves forward along the work line to a position where the stop projection 61 engages with the side surface receiving portion 60 of the latch lever 11.

When the locking protrusion 59 is pushed back by the drive protrusion 64 of the release lever 63 that rotates with the pushing of the inner operating rod 22, the drive protrusion 71 moves to the vertical position as shown in FIG. It enters the middle portion of the groove 73b.

When the worker is confined in the fixed frame body 6 and the handle 3 is locked by the lock unit 57 and the lock plate 59 as described above, the worker is the through hole 21 of the bottom wall plate 9 of the case 2.
Insert the inner operating rod 22 from the
The passive cam plate portion 64 of the release lever 63 may be pressed with 65.

The pushing operation of the inner operating rod 22 causes the release lever 63 to pivot against the bias of the spring 67 as shown in FIG.
Since it rotates around 62, the drive protrusion of the release lever 63
64 pushes the passive end surface 75 of the lock plate 59 to move the stop protrusion 61 to the retracted position that does not hinder the rotation of the latch Renner 11.

When the inner operating rod 22 is pushed further in here, the tip portion 23 of the inner operating rod 22 pushes the passive end portion 24 of the trigger lever 16, so that the tip claw portion 17 of the rotated trigger lever 16 is moved to the latch lever 11.
Then, the latch lever 11 is released from the side shoulder portion 15 and the restraint of the latch lever 11 by the trigger lever 16 is released.

Therefore, the latch lever 11 is rotated by the urging force of the spring 14, the tip hook portion 12 is separated from the receiving shaft 10, and the restraint of the handle 3 with respect to the case 2 is released. Here, if the inner operating rod 22 is further pushed to push the back surface 3d of the main body portion 3b of the handle 3 at the passive end portion 24 of the trigger lever 16, the main body portion 3b is pushed.
Is pushed out from the case 2, and the lock shaft 5 rotates in the unlocking direction.

The rotation of the lock shaft 5 causes the latch 8 to be disengaged from the receiving metal 7, so that the locking and locking of the door 1 with respect to the solid frame body 6 is released, and the worker trapped immediately opens the door 1 from the inside and escapes. .

[Embodiment] In the illustrated embodiment, the box-shaped case 2 has a horizontally long opening portion of the door 1.
The front end flange 27 is brought into contact with the front surface of the door 1, and the case 2 is fitted with the decorative cover 28. The case 2 and the decorative cover 28 are screws 30 that pass through the through holes 29 of the front end collar portion 27.
It is fastened and fixed to the door 1 by.

The proximal end portion of the pivot 4 is non-rotatably fitted into a receiving cylinder portion 31 that is integrally molded with the proximal end portion 3a of the handle 3, and is pulled out from the receiving cylinder portion 31 by a screw 34 that is inserted into the transverse holes 32 and 33. I ’m blocked from coming off,
A split pin 35 is inserted through the tip of the screw 34. The other end of the pivot 4 is inserted into a shaft hole 37 provided in the side wall plate 36 of the case 2.

The lock shaft 5 is connected to the tip end portion of the pivot 4 via a joint member 38, is inserted into the interior of the door 1 or is exposed on the back side of the door 1. The lock shaft 5 is inserted into the guide fitting 39 as required. The latch 8 is fitted and fixed to the tip of the lock shaft 5 arranged inside the edge frame member 40 of the door 1. The receiving metal 7 is fixed to the front side of the container body 6 by screwing or welding, but when the door 1 is closed, the edge frame material is used.
It is hidden behind 40.

The receiving shaft 10 is mounted on a pair of bearings 41, 41 projecting from the bottom wall plate 9. The latch lever 11 and the trigger lever 16 are housed in the rear recess 42 of the handle 3, and the pivot 13 and the pivot 18 are driven and fixed to both side walls 43, 43 of the recess 42. A spring receiving pin 44 is projectingly provided on the inner surface of one side wall portion 43.

The coil portion of the biasing spring 14 composed of a torsion coil spring is fitted to the pivot shaft 13, and one linear end portion 14a thereof has a latch lever 11
Engaging with the overhanging protrusion 45, and the other linear end portion 14b engages with the spring receiving pin 44. The coil portion of the biasing spring 19 composed of a torsion coil spring is fitted to the pivot shaft 18, one linear end portion 19a engages with the side surface of the tip claw portion 17, and the other linear end portion 19b has a spring receiving pin 44. Is engaged with.

On the back side of the bottom wall plate 9 of the case 2, a guide board 46 is provided coaxially with the through hole 21. The inner operating rod 22 is a guide panel so that it can be used immediately without looking for the inner operating rod 22 in an emergency.
It is desirable to always insert it through the central hole 47 of 46. Also,
In order to prevent the escape of cold air, it is desirable that the entire guide board 46 be surrounded by the conical tubular bellows body 48, and the tip end of the bellows body 48 be airtightly attached to the inner operating rod 22.

A compression coil spring for biasing the return can be housed in the bellows body 48. When the container body 6 is fully equipped with an internal light and the location of the inner operating rod 22 can be immediately confirmed, the inner operating rod 22 can be always removed from the guide panel 46 and placed.

One of the hook ends 25a of the biasing spring 25 formed of a tension coil spring is inserted into a through hole 50 of a spring support portion 49 projecting from the inner bottom surface of the recess 42 near the pivot 4. The other hook end portion 25b of the spring 25 has a bottom wall plate 9 between the bearing portions 41, 41.
It is inserted into the through hole 52 of the spring support portion 51 which is provided so as to project.

A buffer rubber body 53 is provided with a screw 54 on the side surface of the base end portion 3a of the handle 3.
A cushioning rubber body 55 is fixed to the back surface of the tip portion 3c of the handle 3 with screws 56.

As shown in FIG. 8, the passive cam plate portion of the release lever 63
The length 66 is formed by bending the long axis obliquely. The semi-spherical tip cam 65 of the inner operating rod 22 is brought into sliding contact with the outer surface of the passive cam plate portion 66, whereby the inner operating rod is
The linear movement of 22 is converted into the rotational movement of the release lever 16.

The pivot 62 of the release lever 63 is composed of a screw screwed into the bottom wall plate 9. The biasing spring 67 is composed of a torsion coil spring, the coil portion is fitted to the pivot shaft 62, and one linear end 67a of the spring 67 is engaged with the spring receiving portion 68 at the base portion of the drive protrusion 64. The other straight end portion 67b of the spring 67 has a bottom wall plate 9
It is wound around a screw type spring support pin 69 that is screwed into.

As the lock mechanism inside the lock unit 57, a disc tumbler lock mechanism, a radial pin tumbler lock mechanism, an axial pin tumbler lock mechanism, or the like can be appropriately selected and used. A joint member 77 is connected to the rotor 58 of the lock unit 57, and a drive protrusion 71 is provided on the tip end surface of the joint member 77 at a position eccentric to the rotation center of the rotor 58.

A spring support pin 74 is projectingly provided on an inner end portion of the receiving groove 70, and a coil portion of a biasing spring 72 formed of a torsion coil spring is fitted to the spring support pin 74.

One straight end 72a of the spring 72 contacts the inner surface of the receiving groove 70,
The other straight end 72b is in contact with the inner end surface of the lock plate 59.
The receiving groove 70 is provided with a circular arc-shaped groove wall surface 70a for escape. Lock plate 59 [Effect of the invention] As described above, in the door lock handle device of the present invention, the lock unit 57 is provided on the front surface of the handle 3, and the lock unit 57 moves forward and backward in association with the rotation of the rotor 58 of the lock unit 57. Since the lock plate 59 is provided, after the door 1 is locked and locked to the fixed frame body 6, the key 78 is inserted into the lock unit 57 so that the locking projection 61 of the lock plate 59 is attached to the side surface of the latch lever 11. By engaging with the receiving portion 60, the handle 3 can be firmly locked with respect to the case 2, and thus the luggage can be properly prevented from being stolen.

Particularly, in the door lock handle device of the present invention, the drive protrusion 71 is provided on the joint member 77 that rotates integrally with the rotor 58 of the lock unit 57 at a portion eccentric to the rotation center of the rotor 58, and the bottom wall plate of the case 2 is provided. 9. A locking plate 59 is slidably fitted in a receiving groove 70 parallel to the guide groove 9, and an L-shaped guide groove 73 into which the drive protrusion 71 is inserted is provided in the locking plate 59, and a side receiving portion of the latch lever 11 is provided. 60
When the locking plate 59 is provided with a locking projection 61 that engages with the locking lever 61 to prevent the latch lever 11 from rotating in the unlocking direction, the locking projection 61 is in a position to prevent the latch lever 11 from rotating in the unlocking direction. ,
The drive protrusion 71 is set to escape from the horizontally long groove portion 73a of the guide groove 73 and to be located at the inner end of the vertically long groove portion 73b of the guide groove 73, and a release lever is provided by a pivot 62 perpendicular to the pivot 13.
The middle part of 63 is pivotally attached to the bottom wall plate 9 of the case 2, and
Is provided at one end of the release lever 63, which pushes the passive end surface 75 of the locking plate 59 to the retracted position where it does not engage the side receiving portion 60 of the latch lever 11, and the tip cam surface 65 of the inner operating rod 22 is provided.
A passive cam plate portion 66 that rotates the release lever 63 so that the locking plate 59 retracts to the retracted position is provided at the other end of the release lever 63, and the passive cam plate portion 66 cooperates with the bottom wall plate. The release lever 63 is rotationally urged by a spring 67 so that the release lever 63 is located at a position where it partially closes the through hole 21.

Therefore, when the handle 3 is locked in the fixed frame body 6 and the handle 3 is locked by the lock unit 57 and the lock plate 59, the release lever 63 is pushed by the inner operating rod 22 inserted from the through hole 21 of the bottom wall plate 9. Rotate and lock plate with release lever 63
When you press 59, the drive protrusion 71 connected to the rotor 58 will lock
Since it escapes into the vertically long groove portion 73b of the L-shaped guide groove 73 of 59, even when the rotor 58 is locked to the fixed main body of the lock unit 57, the locking projection 59 prevents the locking plate 59 from engaging with the latch lever 11.
Of the trigger lever 16 and the latch lever 11 can be slid to the retracted position which does not engage with the side receiving portion 60 of the trigger lever 16 and thus the inner operating rod 22 pushes the passive end 24 of the trigger lever 16.
Is activated and the tip hook part 12 is disengaged from the receiving shaft 10 and the handle 3 and the lock shaft 5 can be rotated in the unlocking direction, so the person trapped unlocks the door 1 by himself and immediately escapes. can do.

[Brief description of drawings]

FIG. 1 is a front view of an essential part of a locked state of a container equipped with a lock handle device for a container door according to an embodiment of the present invention. 2 is a sectional view taken along the line AA of FIG.
FIG. 3 is a front view of the lock handle device in a locked state. 4 is a sectional view taken along the line BB of FIG. 3, and FIG. 5 is a sectional view taken along the line CC of FIG. FIG. 6 is a cross-sectional view of a portion corresponding to FIG. 5 when the rotation of the latch lever is stopped by the lock plate that interlocks with the rotor of the lock unit. FIG. 7 is a sectional view of a portion corresponding to FIG. 5 when the lock plate is pushed to the retracted position by the release lever. FIG. 8 is a perspective view of the release lever. FIG. 9 is a sectional view when the handle is pulled out from the case and rotated. 1 ... Door, 2 ... Case, 3 ... Handle, 3a ... Base end part, 3b ... Main part, 3c ... Tip part, 3d ... Back part, 4 ...
… Axis, 5 …… Lock axis, 6 …… Container body, 7…
… Receiving money, 8 …… Hook, 9 …… Bottom wall plate, 10 …… Receiving shaft, 11…
… Latch lever, 12 …… Tip hook part, 12a …… Passive edge, 13 …… Axis, 14 …… Biasing spring, 14a, 14b …… Straight end, 15 …… Side shoulder, 16 …… Trigger lever, 17 ……
Tip claw, 18 ... Axis, 19 ... Biasing spring, 19a, 19b ...
… Straight end, 20 …… Stop projection, 21 …… Through hole, 22 …… Inner control rod, 23 …… Tip, 24 …… Passive end, 25 …… Biasing spring, 25a, 25b …… Hook end, 26 …… Horizontal opening, 27
…… Front end collar, 28 …… Decorative cover, 29 …… Through hole, 30 ……
Fixing screw, 31 …… Receiving tube part, 32,33 …… Cross hole, 34 ……
Connection screw, 35 ...... cotter pin, 36 ...... side wall plate, 37 …… shaft hole, 38 …… joint member, 39 …… guide fitting, 40 …… edge frame material,
41 …… Bearing part, 42 …… Back recess, 43 …… Side wall part, 44 ……
Spring receiving pin, 45 …… Overhanging protrusion, 46 …… Guide panel, 47 ……
Central hole, 49 ... Spring support part, 50 ... Through hole, 51 ... Spring support part, 52 ... Through hole, 53 ... Buffer rubber body, 54 ... Fixing screw, 55 ... Buffer rubber body, 56 …… Fixing screw, 57 …… Lock unit, 58 …… Rotor, 59 …… Lock plate, 60 …… Side receiving part, 61 …… Stop projection, 62 …… Axis, 63 …… Release lever, 64 ...... Drive protrusion, 65 …… Tip cam surface, 66 …… Passive cam plate part, 67 …… Biasing spring, 67a, 67b …… Straight end part, 68
...... Spring receiving part, 69 ...... Spring support pin, 70 ...... Reception groove, 70a
…… Arc wall surface, 71 …… Drive protrusion, 72 …… Biasing springs, 72a, 72b …… Straight end, 73 …… L-shaped guide groove, 73a…
… Horizontal groove, 73b …… Vertical groove, 74 …… Spring support pin, 7
5 …… Passive end face, 76 …… Fixing screw, 77 …… Coupling member, 7
8 …… Key, 79 …… Lock unit bottom cover plate, 80 …… Shaft hole

Claims (1)

[Scope of utility model registration request] 1. A base 2a of a handle 3 is pivotally attached to a case 2 fixed to a door 1 by means of a pivot 4, and a lock shaft 5 interlocking with the pivot 4 is engaged with and disengaged from a receiving member 7 on a fixed frame 6 side. A latch lever 11 provided with a latch 8 for engaging and disengaging a receiving shaft 10 and a tip hook portion 12 projecting from a bottom wall plate 9 of the case 2 is pivotally attached to a handle 3 by a pivot shaft 13, and a latch lever 11 by a spring 14. The axle
The trigger lever 16 is urged to rotate away from 10, and the tip claw portion 17 disengages from the side shoulder portion 15 of the latch lever 11.
A handle 18 is pivotally attached to a handle 3 by a pivot 18 parallel to the pivot 13, and a spring 19 urges the trigger lever 16 to rotate in a direction to engage with the latch lever 11.
When the lever 12 is disengaged from the receiving shaft 10, the trigger lever 16 is provided with a stop projection 20 that engages with the side shoulder portion 15, is inserted through the through hole 21 of the bottom wall plate 9 of the case 2, and the trigger lever 23 is provided at the tip portion 23.
Push the passive end 24 of the 16 toward the back surface 3d of the main body 3b of the handle 3 to rotate the trigger lever 16 in the direction in which the tip claw 17 separates from the side shoulder 15 of the latch lever 11. The lock unit 57 is provided inside the door 1, and the lock unit 57 is provided on the front surface of the handle 3. The joint member 77 that rotates integrally with the rotor 58 of the lock unit 57 is provided with the drive protrusion 71 at a portion eccentric to the rotation center of the rotor 58. The drive plate is provided with the lock plate 59 slidably fitted in the receiving groove 70 parallel to the bottom wall plate 9 of the case 2.
An L-shaped guide groove 73 into which 71 is inserted is provided in the locking plate 59, and a locking protrusion 61 that locks the latch lever 11 in the unlocking direction by engaging the side receiving portion 60 of the latch lever 11 is locked. When the stop protrusion 59 is provided on the stop plate 59 and the stop protrusion 61 is in a position to prevent the latch lever 11 from rotating in the unlocking direction, the drive protrusion 71 comes out from the laterally elongated groove portion 73a of the guide groove 73, and the guide groove 73 is vertically long. It is set so as to be located at the inner end of the groove portion 73b, and a pivot shaft 62 perpendicular to the pivot shaft 62 is provided.
The release lever 63 is pivotally attached to the bottom wall plate 9 of the case 2 by means of the stopper projection 61 and the side surface receiving portion 60 of the latch lever 11.
A drive projection 64 for pushing the passive end surface 75 of the lock plate 59 to a retracted position that does not engage with the lock lever 59 is provided at one end of the release lever 63 and cooperates with the tip cam surface 65 of the inner operation rod 22 to lock the lock plate. A passive cam plate portion 66 for rotating the release lever 63 so that 59 retracts to the retracted position is provided at the other end of the release lever 63, and the passive cam plate portion 66 covers a part of the through hole 21 of the bottom wall plate 9. A door lock handle device with an inner unlocking function in which the release lever 63 is rotationally biased by a spring 67 so that it is in the closed position.