JP3298861B2 - Detachable lock handle device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detachable lock handle device used for a door of a switchboard storage box or the like.

[0002]

2. Description of the Related Art In a conventional insertion / removal type lock handle device, by inserting an operation handle into a receiving hole of a receiving main body, a clutch body provided on a rotor comes out of a receiving groove on a receiving main body side. The lock of the rotor with respect to the main body is released. When the rotor is turned in the locking direction by the operation handle, the stopper plate at the tip of the rotor is disengaged from the holder on the box body side, the door is unlocked from the box body, and the door is pulled by pulling the operation handle forward Be released. After the door is closed, the operation handle is turned in the opposite direction to engage the stopper plate with the receiving member, and when the door is locked to the box body, the operation handle is pulled out. The body reengages the receiving groove and locks the rotor non-rotatably with respect to the seat body.

[0003] However, the rotor is under tension in the rotational direction due to the pressure between the stopper plate and the receiving member. Therefore, depending on the magnitude of this tension, the clutch body cannot be properly locked in the proper locking position only by urging the spring. May not return. As a result, since the operating handle is pulled out of the seat main body, it can be seen that the lock is established in appearance, but in reality, the rotor is not locked unrotatably with respect to the seat main body. It will be left in a locked state. In such a semi-locked state, there is a danger that when the close contact between the stopper plate and the receiving member is canceled due to vibration impact or the like, the rotor rotates in the unlocking direction and the door is accidentally opened.

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to return the clutch body to the locked position reliably by temporarily holding the operating handle in the locked position, so that the semi-locked state of the rotor is maintained. An object of the present invention is to provide a pull-in type lock handle device which does not occur.

[0005]

Means for Solving the Problems To be described with reference to the reference numerals in the attached drawings, in the insertion / removal type lock handle device according to the first aspect of the present invention, a receiving hole 2 penetrating in a front-rear direction of a receiving body 1 is provided in a front-rear direction. The rotor 3 is inserted by blocking the movement of the rotor 3, and a cavity 4 is formed at the front end of the rotor 3 in the front-rear direction.
A guide hole 5 traversing the cavity 4 is provided at the front end of the rotor 3, and a clutch body 6 fitted in the guide hole 5 is urged to project in a diametrical direction by a spring 7 so that the clutch body 6 is formed on the inner wall surface of the receiving hole 2. A receiving groove 9 with which a front claw portion 8 is engaged and disengaged is provided, and a shaft hole 44 penetrating in a front-rear direction is provided in a driving shaft portion 11 of an operation handle 10 which is inserted into and removed from the hollow portion 4, and an operation rod inserted into the shaft hole 44. 45 is urged forward by a spring 46 to provide a split groove 12 and a split groove 47 into which the clutch body 6 enters at the distal end of the drive shaft 11 and the distal end of the operating rod 45, and a driving member that traverses the split groove 47. 13 is provided at the distal end of the operating rod 45, a cam groove 14 inclined from the front side of the clutch body 6 toward the distal claw section 8 is provided in the clutch body 6, and the driving member 13 is connected to the cam groove 14.
To get in and out.

[0006] In this pull-out type lock handle device,
The seat main body 1 is fixed to a door 19, and a stopper plate 17 is provided at the tip of the rotor 3. Receiving money 18 on the box body 20 side
FIG. 7 shows the locked state of the door where the stopper plate 17 is engaged.
As shown in (1), the clutch body 6 mounted on the rotor 3 has the tip claw 8 engaged with the receiving groove 9 on the seat body 1 side, and locks the rotor 3 so that it cannot rotate with respect to the seat body 1. are doing. The engaged state between the clutch body 6 and the receiving groove 9 is held by the urging force of the spring 7.

To unlock the door 19, the drive shaft 11 of the operating handle 10 is connected to the rotor 3 as shown in FIG.
And the operation handle 10 may be rotated in a predetermined direction. When the drive shaft 11 is inserted into the hollow portion 4, the clutch body 6 enters the split groove 12 of the drive shaft 11 and the split groove 47 of the operation rod 45. At the initial stage when the operating handle 10 is inserted, the operating rod 45 is in a position where it is retracted and returned to the front side by the bias of the spring 46, and the driving member 13 mounted on the operating rod 45 It enters the entrance of the groove 14. Next, when the operating rod 45 is pushed in against the bias of the spring 46, the driving member 13 pushes the front inner surface 15 of the cam groove 14, and the clutch body 6 is moved along the guide hole 5 of the rotor 3. 3 is retracted to the inside of the contour of the clutch body 6, and the tip claw portion 8 of the clutch body 6
Escape from the receiving groove 9. As a result, the lock of the rotor 3 with respect to the seat body 1 is released, so that the rotor 3 rotates integrally with the operation handle 10 and the stopper plate 17 is
8 and the lock of the door 19 with respect to the box body 20 is released.

When the rotor 3 rotates to the unlocking position in this manner, the tip claw portion 8 of the clutch body 6 abuts against the inner peripheral surface of the receiving hole 2 of the receiving body 1 so that the clutch body 6 is rotated.
Is constrained to a position drawn into the contour of the rotor 3. When the operating handle 10 is pulled toward the user in this state, the driving member 13 is engaged with the inner surface 16 on the rear side of the cam groove 14, thereby preventing the operating handle 10 from being pulled out from the receiving main body 1, and the door 19 is operated. It will be opened by the handle 10. After the door 19 is closed, the operation handle 10 is turned in the locking direction, and the stopper plate 17 is
8 when they come into close contact with each other,
Reaches a position aligned with the receiving groove 9 of the receiving body 1. Once the operation handle 10 is once held at the locking position against the tension applied to the rotor 3, the clutch body 6 protrudes from the contour of the rotor 3 by the bias of the spring 7 during that time, and the tip claw 8 is received. It is smoothly engaged with the receiving groove 9 of the seat body 1. The operating rod 45 is retracted and returned to the front side of the operating handle 10 by the bias of the spring 46. When the rotor 3 is locked to the seat body 1 in this manner, the driving member 13 is at the entrance of the cam groove 14 and the driving member 13 is engaged with the rear inner surface 16 of the cam groove 14. Not in a position. Therefore, when the operation handle 10 is pulled toward the user, the drive shaft portion 11 of the operation handle 10 is pulled out of the hollow portion 4 of the rotor 3 without resistance.

According to the second aspect of the present invention, the rotor 3 is inserted into the receiving hole 2 which penetrates the seat body 1 in the front-rear direction while preventing the rotor 3 from moving in the front-rear direction. A cavity 4 is formed in the front-rear direction, a guide hole 5 traversing the cavity 4 is provided at the front end of the rotor 3, and a clutch body 6 fitted in the guide hole 5 is urged by a spring 7 to project in the diameter direction. A receiving groove 9 for engaging and disengaging a tip claw portion 8 of the clutch body 6 is provided on an inner wall surface of the receiving hole 2, and a shaft hole 44 penetrating in a front-rear direction through the driving shaft portion 11 of the operation handle 10 inserted and removed into the hollow portion 4. The operation rod 45 is movably inserted into the shaft hole 44, the trigger lever 49 is connected to the operation handle 10 by the transverse pivot 48, and the tip 50 of the trigger lever 49 is inserted into the side surface of the operation rod 45. Groove 51 is provided and trigger lever Proximal end 52 of 49 and the operating handle 1
The operating rod 45 is returned and urged by a spring 53 inserted between the operating shaft 45 and the splitting groove 12 and the splitting groove 47 into which the clutch body 6 enters at the distal end of the drive shaft 11 and the distal end of the operating rod 45. The driving member 13 traversing the groove 47 is provided at the distal end of the operating rod 45, and the cam groove 14 inclined from the front side of the clutch body 6 toward the distal claw 8 is provided in the clutch body 6.
3 enters and exits the cam groove 14.

In the lock handle device according to the second aspect,
The seat main body 1 is fixed to a door 19, and a stopper plate 17 is provided at the tip of the rotor 3. Receiving money 18 on the box body 20 side
FIG. 7 shows the locked state of the door where the stopper plate 17 is engaged.
As shown in (1), the clutch body 6 mounted on the rotor 3 has the tip claw 8 engaged with the receiving groove 9 on the seat body 1 side, and locks the rotor 3 so that it cannot rotate with respect to the seat body 1. are doing. The engaged state between the clutch body 6 and the receiving groove 9 is held by the urging force of the spring 7. To unlock the door 19,
As shown in FIG. 8, the drive shaft 11 of the operation handle 10 may be inserted into the cavity 4 of the rotor 3, and the operation handle 10 may be rotated in a predetermined direction. When the drive shaft 11 is inserted into the cavity 4, the split groove 12 of the drive shaft 11 and the split
7, the clutch body 6 enters. At the initial stage when the operating handle 10 is inserted, the operating rod 45 is
The drive member 13 mounted on the operation rod 45 is in a position where the drive member 13 is retracted and returned to the front side by the urging force of 6, and has entered the entrance of the cam groove 14 of the clutch body 6.

Next, when the trigger lever 49 is pushed against the urging of the spring 53, the distal end portion 50 of the trigger lever 49 pushes the wall surface of the interlocking groove 51, so that the operation rod 45 is pushed. With the pushing operation of the operating rod 45, the driving member 13 pushes the front inner surface 15 of the cam groove 14, so that the clutch body 6 is retracted into the contour of the rotor 3 along the guide hole 5 of the rotor 3, and The tip claw portion 8 of the clutch body 6 escapes from the receiving groove 9 of the receiving main body 1. by this,
Since the lock of the rotor 3 with respect to the seat body 1 is released,
The rotor 3 rotates integrally with the operation handle 10, the stopper plate 17 is separated from the receiver 18, and the lock of the door 19 with respect to the box body 20 is released. When the rotor 3 rotates to the unlock position in this manner, the tip claw portion 8 of the clutch body 6
Abuts against the inner peripheral surface of the receiving hole 2 of the receiving main body 1, whereby the clutch body 6 is restrained at a position drawn into the contour of the rotor 3. In this state, the operation handle 1
When the drive member 13 is pulled forward, the drive member 13 is engaged with the rear inner surface 16 of the cam groove 14, thereby preventing the operation handle 10 from being pulled out of the seat main body 1, and the door 19 is opened by the operation handle 10. Will be.

When the operating handle 10 is turned in the locking direction after the door 19 is closed, and the stopper plate 17 comes into close contact with the metal receiving portion 18, the guide hole 5 of the rotor 3 is inserted into the receiving main body 1.
Reaches the position aligned with the receiving groove 9. Once the operation handle 10 is once held at the locking position against the tension applied to the rotor 3, the clutch body 6 protrudes from the contour of the rotor 3 by the bias of the spring 7 during that time, and the tip claw 8 is received. It is smoothly engaged with the receiving groove 9 of the seat body 1. When the child is a child, the trigger lever 49 and the operating rod 45 are returned to their original positions by the bias of the spring 53. When the rotor 3 is locked to the seat body 1 in this manner, the driving member 13 is at the entrance of the cam groove 14 and the driving member 13 is engaged with the rear inner surface 16 of the cam groove 14. Not in a position. Therefore, when the operation handle 10 is pulled forward,
The drive shaft 11 of the operating handle 10 is the hollow 4 of the rotor 3.
Extracted without resistance.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The illustrated embodiment incorporates the structures of the first and second aspects of the present invention together. A lock receiving hole 21 is provided in the receiving main body 1 in parallel with the receiving hole 2, and a lock shaft 23 of a lock unit 22 stored in the lock receiving hole 21 is provided with a latch plate 2 engaged with and disengaged from a side groove 24 of the rotor 3.
5 are connected via a joint cam 26 having a drive projection 27. By rotating the key inserted into and removed from the key groove 28 of the locking shaft 23, the rotor 3 is fully locked to the seat body 1 as necessary. A lid 29 is pivotally attached to the front upper end of the seat body 1 so as to be openable and closable about a horizontal shaft 31. The lid 29 is formed in a size to cover the front sides of the lock unit 22 and the rotor 3. I have. On both left and right sides of the lid 29, finger hooks 30 are provided. The stopper plate 17 is fitted to the tip corner shaft portion 32 of the rotor 3 so as not to rotate relatively,
It is fastened and fixed to the rotor 3 by a bolt 34 via a washer 33. A rotation angle regulating plate 35 is fitted on the square shaft portion 32 so as to be relatively non-rotatable. The rotation angle regulating plate 35 engages with a regulating protrusion 36 provided on the receiving main body 1 side to thereby prevent the rotor 3 from rotating. The rotation angle is restricted to 90 degrees.

An O-ring 37 mounted in an annular groove 39 at an intermediate portion of the rotor 3 waterproofly seals the space between the rotor 3 and the inner peripheral surface of the seat body 1. The packing board 38 attached to the rear recess 42 of the lid 29 waterproofly seals the front side of the lock unit 22 when the lid is closed. A retaining ring 41 for preventing the rotor 3 from moving in the front-rear direction is fitted into the annular groove 40 on the outer peripheral surface of the rear end of the rotor 3. The drive shaft portion 11 of the operation handle 10 is formed in an oval cross section, and the cross section of the hollow portion 4 of the rotor 3 is also formed in an oval shape correspondingly, and the rotational force is transmitted from the operation handle 10 to the rotor 3. It is supposed to be. The drive member 13 of the operation handle 10 is formed of a roller fitted on a core shaft 43 that crosses the distal end shaft portion 11 in the diameter direction. Projection biasing spring 7 of clutch body 6 and return biasing spring 46 of operating rod 45
And the return biasing spring of the trigger lever 49 are both formed by compression coil springs.

A hook lever 54 is pivotally connected to the operation handle 10 by a transverse pivot 48. An interlocking projection 55 formed at the base end of the hook lever 54 is
At a position slightly closer to the distal end portion 50 than the front end portion, it is engaged with the front surface of the intermediate portion of the trigger lever 49. Trigger lever 4
9 is not pressed, the hook lever 54
Is in a posture in which the tip hook portion 56 is pressed against the side surface of the operation rod 45 by the action of the spring 53 working via the trigger lever 49. Therefore, the operating handle 1
0 is inserted into the cavity 4 of the rotor 3,
The tip hook portion 56 can be inserted deeply into the hollow portion 4 without abutting against the undercut portion 57 formed at the front end portion of the hollow portion 4. Thereafter, by gripping the operation handle 10 and the trigger lever 49 together, the trigger lever 49 is pushed around the transverse pivot 48 and the operation rod 45 is pushed in. While being pushed by the inclined cam surface 58 formed on the undercut portion 57, the undercut portion 57 enters and engages with the rear side. The operation handle 10 is restrained by the rotor 3 via the hook lever 54 turned to such a posture, and the door 19 is opened by pulling the operation handle 10 toward the user.

[0016]

As described above, in the insertion / removal type lock handle device of the first aspect, when the operation handle 10 is inserted, the drive member 13 of the operation rod 45 is positioned at the entrance of the cam groove 14, and the next operation rod 45 Drive member 13 when pushed
Pressing the front inner surface 15 of the cam groove 14 causes the tip claw 8 of the clutch body 6 to escape from the receiving groove 9,
The operating handle 10 is reversely rotated to a locking position where the guide hole 5 of the rotor 3 is aligned with the receiving groove 9 of the receiving main body 1, and once holds the rotor 3 at the locking position against the tension applied to the rotor 3. After that, the operating handle 10 is pulled out, so that the protruding bias of the spring 7 causes the tip claw portion 8 of the clutch body 6 to smoothly engage with the receiving groove 9 and move to the locked position of the clutch body 6. Is surely executed before the operation of removing the operation handle 10. for that reason,
If the operating handle 10 is removed from the seat main body 1, the rotor 3 is always locked so as not to rotate with respect to the seat main body 1, and there is no danger that a semi-locked state occurs. The device is obtained.

According to the second aspect of the present invention, the driving member 13 is positioned at the entrance of the cam groove 14 when the operation handle 10 is inserted, and the cam groove 14 is moved by the driving member 13 when the next trigger lever 49 is pushed. By pushing the front inner surface 15 of the clutch body 6, the tip claw portion 8 of the clutch body 6 escapes from the receiving groove 9, while the operating handle is moved to the locked position where the guide hole 5 of the rotor 3 is aligned with the receiving groove 9 of the receiving body 1. 10 is reversely rotated to once hold the rotor 3 at the locking position against the tension applied to the rotor 3 and then pull out the operating handle 10. Of the clutch body 6 to the locked position can be surely executed before the operation handle 10 is pulled out. To become. Therefore, the operating handle 1
If 0 is removed from the seat body 1, the rotor 3
Are locked non-rotatably with respect to the seat body 1, so that there is provided a lock handle device that does not have a danger of causing a semi-locked state.

[Brief description of the drawings]

FIG. 1 is a front view of a pull-out type lock handle device according to an embodiment of the present invention in a lid closed state.

FIG. 2 is a right side view of the lock handle device.

FIG. 3 is a rear view of the lock handle device.

FIG. 4 is a front view of an operation handle used in the lock handle device.

FIG. 5 is a right side view of the operation handle.

FIG. 6 is a rear view of the operation handle.

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

FIG. 8 when the operation handle is inserted.
FIG. 4 is a sectional view taken along line AA of FIG.

FIG. 9 is a cross-sectional view taken along line AA of FIG. 1 when the push button is pressed after the operation handle is inserted.

FIG. 10 is a sectional view taken along the line BB of FIG. 5;

FIG. 11 is a sectional view taken along line CC of FIG. 5;

FIG. 12 is a sectional view taken along line DD of FIG. 6;

DESCRIPTION OF SYMBOLS 1 Receiving body 2 Receiving hole 3 Rotor 4 Cavity part 5 Guide hole 6 Clutch body 7 Protrusion urging spring 8 Tip claw part 9 Receiving groove 10 Operating handle 11 Drive shaft part 12 Split groove 13 Interlocking member 14 Cam groove 15 Front inner surface 45 Operation rod 49 Trigger lever 54 Hook lever

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) E05B 3/00 E05B 65/00 H02B 1/30

Claims (2)

(57) [Claims] 1. A receiving hole 2 penetrating in the front-rear direction of a receiving main body 1.
The rotor 3 is fitted into the rotor 3 while preventing movement in the front-rear direction, and a cavity 4 is formed at the front end of the rotor 3 in the front-rear direction.
Is provided at the front end of the rotor 3, and the clutch body 6 fitted in the guide hole 5 is urged to project in the diametrical direction by a spring 7. A receiving groove 9 with which the portion 8 is disengaged is provided, a shaft hole 44 penetrating in the front-rear direction is provided on the drive shaft portion 11 of the operation handle 10 which is inserted into and removed from the hollow portion 4, and an operation rod 45 inserted into the shaft hole 44.
Are protrudingly urged forward by a spring 46 to provide a split groove 12 and a split groove 47 into which the clutch body 6 enters at the distal end of the drive shaft 11 and the distal end of the operating rod 45, and the driving member 13 traversing the split groove 47. Is provided at the distal end of the operating rod 45, a cam groove 14 inclined from the front side of the clutch body 6 toward the front claw 8 is provided in the clutch body 6, and the driving member 13 is connected to the cam groove 14 when the operating handle 10 is inserted. It is positioned at the entrance, and when the next operation rod 45 is pushed in, the driving member 13 moves the cam groove 1.
By pressing the front inner surface 15 of the clutch body 4, the clutch body 6 is pressed.
The tip claw portion 8 of the guide hole 5 escapes from the receiving groove 9.
A lock handle device that pulls out the operation handle 10 after holding the operation handle 10 at a locked position in which the operation handle 10 is aligned with the receiving groove 9. 2. A receiving hole 2 penetrating in the front-rear direction of the receiving main body 1.
The rotor 3 is fitted into the rotor 3 while preventing movement in the front-rear direction, and a cavity 4 is formed at the front end of the rotor 3 in the front-rear direction.
Is provided at the front end of the rotor 3, and the clutch body 6 fitted in the guide hole 5 is urged to project in the diametrical direction by a spring 7. A receiving groove 9 with which the part 8 is disengaged is provided, a shaft hole 44 penetrating in the front-rear direction is provided on the drive shaft part 11 of the operation handle 10 which is inserted into and removed from the hollow part 4, and the operation rod 45 is movable in the shaft hole 44. The trigger lever 49 is connected to the operation handle 10 by the transverse pivot 48, and an interlocking groove 51 into which the distal end portion 50 of the trigger lever 49 is inserted is provided on the side surface of the operation rod 45. The operating rod 45 is returned and urged by a spring 53 inserted between the operating handles 10, and a split groove 12 and a split groove 47 into which the clutch body 6 enters are formed at the distal end of the drive shaft 11 and the distal end of the operating rod 45. ,
The drive member 13 traversing the split groove 47 is provided at the distal end of the operating rod 45, the cam groove 14 inclined from the front side of the clutch body 6 toward the distal claw 8 is provided in the clutch body 6, and the operation handle 10 is inserted. The driving member 13 is positioned at the entrance of the cam groove 14 at the time, and when the next trigger operation of the trigger lever 49 is performed, the driving member 13 causes the front inner surface 15 of the cam groove 14 to be moved.
Is pressed to release the tip claw portion 8 of the clutch body 6 from the receiving groove 9, while holding the operating handle 10 at the locked position where the guide hole 5 and the receiving groove 9 are aligned, and then pulling out the operating handle 10. Locking and removing lock handle device.