JP2001317239A - Lock handle device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lock handle device capable of eliminating contact pressure between a handle and a handle case and surely and projectingly rotating the handle by operation of a releasing button. SOLUTION: A spring urging unit 30 for giving torque in a locking direction to a locking shaft 4 from an area near to a rotational terminal in the locking direction is provided between the handle case 2 and a latch plate 7, and a regulatory shoulder face 13 of a rotational angle control panel 12 is closely connected to a controlling wall surface 5 of a bearing cylinder section 16 to prevent the occurrence of contact pressure between the handle 1 and handle case 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a lock handle device for locking a door to a fixed frame.

[0002]

2. Description of the Related Art In a conventional lock handle device, FIG.
As shown in FIG. 3, the handle case 2 is fixed to the door A, the handle 1 is restrained at the storage position in the handle case 2 when locking, and the handle 1 is restrained by operating the release button 3 when unlocking. When released, handle 1
Is rotated about the transverse pivot 10 by the bias of the spring, and when the locking shaft 4 whose front end is connected to the handle 1 by the transverse pivot 10 is rotated with respect to the handle case 2, the rear end of the locking shaft 4 is rotated. The stopper plate 7 fixed to the portion rotates and separates from the receiving portion 8 on the fixed frame B side. In this type of lock handle device, in addition to the locking by the engagement between the stopper plate 7 and the receiving part 8, the connecting rod 2 is attached to the stopper plate 7.
The upper and lower two latch units are connected via 0,21,
It is common to lock the door in three places.

In such a lock handle device, an unbalanced weight acts to move the stopper plate 7 in the unlocking direction in the locked state, whereby the outer surface of the handle 1 is moved inside the handle case 2. It is pressed against the side surface (see the white arrow in FIG. 8). If the contact pressure becomes larger than a certain level and a pressing phenomenon exceeding the urging force of the spring occurs between the handle 1 and the handle case 2, the handle 1 is kept at the predetermined angular position even if the release button 3 is operated. The projectile may not rotate.

In order to improve the malfunction of the handle 1, it is conceivable to increase the force of the urging spring of the handle. In this case, however, the operating force required to push the handle 1 into the handle case 2 is considered. When the approach is not great, when the release button 3 is operated, the handle 1 jumps up vigorously, which is rather dangerous.

[0005]

SUMMARY OF THE INVENTION An object of the present invention is to provide a lock handle device in which a handle can be reliably protruded and rotated from a handle case by operating a release button without increasing the force of a handle urging spring. To provide.

[0006]

According to the first aspect of the present invention,
The handle case 2 is fixed to the door A, and the handle 1 is restrained at the storage position in the handle case 2 when locking, and when the release button 3 is operated to release the restraint of the handle 1 when unlocking, the handle 1 The lock handle device protrudes and rotates due to the bias of the spring 11, and the stopper plate 7 attached to the handle 1 rotates to separate from the metal receiving portion 8 on the fixed frame B side. The disc 12 is fitted so as not to rotate relatively, and at the end where the locking shaft 4 rotates in the locking direction, the restricting wall surface 5 against which the regulating shoulder 13 of the rotation angle regulating plate 12 abuts, and the end where the locking shaft 4 rotates in the unlocking direction. At the shoulder surface 1 of the rotation angle regulating board 12
The stop wall 6 with which the lock shaft 4 comes into contact is formed on the bearing cylinder 16 of the handle case 2 into which the lock shaft 4 is inserted. A spring biasing unit 30 is provided between the handle case 2 and the stopper plate 7 to apply a rotational force in the locking direction to the locking shaft 4 from a region near the end of rotation in the locking direction. 3
0 causes the regulating shoulder surface 13 to come into close contact with the blocking wall surface 5 in the locked state.

The outer dimensions of the handle 1 are set so that the outer surface of the handle 1 does not come into contact with the inner surface of the handle case 2 when the regulating shoulder surface 13 comes into close contact with the restricting wall surface 5. When the release button 3 is operated, the handle 1 projects from the handle case 2 smoothly.

In the lock handle device according to the second aspect of the present invention, the spring biasing unit 30 is a spring member 31 made of one non-buckling compression coil spring or torsion spring.
One end of the spring member 31 is directly or indirectly connected to the stopper plate 7 by a first pivot 35, and the other end of the spring member 31 is directly or indirectly connected to the handle case 2 by a second pivot 37. The pivot 35, which is the operating end of the spring member 31, is provided so as to exceed a reference straight line O connecting the lock shaft 4 and the pivot 37 in the locked state.

When the handle 1 is turned in the locking direction to a certain angular position, the pivot 35 moves beyond the reference straight line O to the other side, so that the locking shaft 4 is forcibly rotated in the locking direction, and the regulating shoulder surface is formed. 13 is brought into close contact with the stop wall 5. As described above, the outer dimensions of the handle 1 are set so that a slight gap is formed between the outer surface of the handle 1 and the inner surface of the handle case 2 when the restricting shoulder surface 13 is in close contact with the restraining wall surface 5. Therefore, the pressing phenomenon between the two does not occur, and when the release button 3 is operated, the handle 1
Immediately protrudes from the handle case 2.

In the lock handle device according to the third aspect of the present invention, the spring urging unit 30 includes the arm plate 34 fixed to the locking shaft 4 and the handle case 2 or the hydrid case 2.
And a base end 32a is connected to a distal end of the arm plate 34 by a first pivot 35, and a distal end 32b is formed in a through hole 40 of the spring receiving member 38. And a spring receiving portion 3 of a base end portion 32a of the guide rod 32 fitted to the guide rod 32.
3 and a compression coil spring 31 compressed between the spring receiving members 38.

The tip 32b of the guide rod 32 slides along the through hole 40 in response to the rotation of the stopper plate 7 in the locking direction or the unlocking direction. Rocks as When the handle 1 is turned to a certain angular position in the locking direction, the operating end of the spring member 31 that contacts the spring receiving portion 33 crosses the reference straight line O connecting the locking shaft 4 and the through hole 40 to the other side. Thereby, the locking shaft 4 is forcibly rotated in the locking direction, and the regulating shoulder surface 13 is brought into close contact with the blocking wall surface 5. When the restricting shoulder surface 13 is in close contact with the restraining wall surface 5 in this manner, no close phenomenon occurs between the outer surface of the handle 1 and the inner surface of the handle case 2, and when the release button 3 is operated, the handle 1 Immediately protrudes from the handle case 2.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments shown in FIGS. 1 to 6 include the first and third aspects of the present invention. Portions already described in the section of means for achieving the object are referred to here and redundant description is omitted. The basic structure of this lock handle device is the same as that of the above-described conventional device. The handle case 2 is fixed to the door A, and the handle 1 is restrained at the storage position in the handle case 2 when locked, and When the release of the handle 1 by the operation of the release button 3, the handle 1 protrudes and rotates about the transverse pivot 10 by the bias of the spring, and the front end is locked to the handle 1 by the transverse pivot 10. Is rotated with respect to the handle case 2,
The stopper plate 7 fixed to the rear end of the locking shaft 4 rotates and separates from the receiving portion 8 on the fixed frame B side.

In a locked state in which the stopper plate 7 is disposed at right angles to the handle case 2 and the distal end portion is engaged with the receiving portion 8, the handle 1 is housed in the handle case 2. At this time, the restricting shoulder surface 13 of the rotation angle restricting plate 12 is in contact with the stop wall 5 on the handle case 2 side (see FIG. 4). Press release button 3 and handle case 2
When the handle 1 is released from the restraint, the handle 1 projects and rotates about 45 degrees about the transverse pivot 1 by the bias of the leaf spring 11 inserted between the back side of the handle 1 and the locking shaft 4. In this state, when the handle 1 is rotated in the unlocking direction, that is, in the counterclockwise direction in FIG. 4, the locking shaft 4 and the stopper plate 7 are also rotated by 90 degrees, and the regulating shoulder surface 14 of the rotation angle regulating plate 12 is rotated. It comes into contact with the blocking wall surface 6 of the bearing cylinder 16. At this rotation angle, the stopper plate 7
Is detached from the receiving part 8, and the door A is in a state where it can be opened.

In the embodiment shown in FIG. 7, the spring urging unit 30 is constituted by a single torsion spring 31.
During the rotation of the locking shaft 4, the pivot 35 is moved to the reference straight line O.
, The action direction of the restoring force of the spring 31 is reversed. In the locked state, the biasing force of the torsion spring 31 controls the rotation shoulder surface 13 of the rotation angle control plate 12.
Is pressed against the stop wall 5 on the handle case 2 side, so that the handle 1 is not pressed against the inner wall surface of the handle case 2. Since the contact pressure between the handle 1 and the handle case 2 is removed in this way, the handle 1 is immediately protruded and rotated from the handle case 2 by operating the release button.

In any of the embodiments, the rotation angle restricting plate 12 is mounted so as to be relatively non-rotatable by fitting the square shaft portion of the lock shaft 4 into the central square hole, and the bolts and nuts are provided via appropriate washers. Thus, it is fastened and fixed to the step portion of the locking shaft 4. One end of the compression coil spring 31 is pressed against one end of the guide rod 32, and the other end is pressed against the spring receiving member 38. When the support leg plate 37 of the spring receiving member 38 is provided on the immovable member 9 separate from the handle case 2 as in the illustrated embodiment, the immovable member 9 is screwed to the handle case 2.
, The spring biasing unit 30 can be attached to an existing lock handle device. Further, the operating mechanism of the lock handle device is not limited to the illustrated one, and a known one can be appropriately selected.

[0016]

According to the lock handle device of the present invention, the spring urging unit 30 provided between the handle case 2 and the stopper plate 7 allows the locking shaft 4 to be locked in the locking direction from a region near the end of rotation in the locking direction. In the locked state, the restricting shoulder surface 13 of the rotation angle restricting plate 12 is brought into close contact with the restricting wall surface 5 of the bearing cylinder 16 so that the outer surface of the handle 1 and the inner surface of the handle case 2 are locked. Since a required gap is secured between the side surfaces and no contact pressure is generated between the handle 1 and the handle case 2, the handle 1 is reliably projected from the handle case 2 by the bias of the spring 11 when a predetermined release operation is performed. I do.

Since the spring urging unit 30 is operated only when the locking shaft 4 approaches the end of rotation in the locking direction, the locking plate 7 in the unlocked position is returned to the locking direction. No operation. In addition, since it is not necessary to set the restoring force of the handle urging spring 11 more than necessary, there is no danger that the handle 1 will protrude vigorously when there is no or little approaching phenomenon.

[Brief description of the drawings]

FIG. 1 is a rear view of a lock handle device according to an embodiment of the present invention in a locked state.

FIG. 2 is a rear view of the lock handle device of FIG. 1 in an unlocked state.

FIG. 3 is a right side view of the lock handle device of FIG. 1;

4 is a rear view cut along the line YY of FIG. 3, showing a positional relationship between a regulating shoulder surface of a rotation angle regulating plate and a blocking wall surface of a bearing cylinder portion.

FIG. 5 is a front view of a spring biasing unit incorporated in the lock handle device of FIG. 1;

FIG. 6 is a side view of the spring urging unit of FIG. 5;

FIG. 7 is a front view of a spring biasing unit according to another embodiment of the present invention.

FIG. 8 is a front view of a conventional lock handle device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handle 2 Handle case 3 Release button 4 Locking shaft 5 Baffle wall 6 Baffle wall 7 Stopper plate 8 Receiving part 9 Immovable member 10 Transverse pivot 11 Handle spring 12 Rotation angle regulation board 13 Regulation shoulder 14 Regulation shoulder Reference Signs List 20 connecting rod to latch unit 21 connecting rod to latch unit 30 spring urging unit 31 rotation urging spring 32 guide rod 33 spring receiving part at base end of guide rod 34 arm plate 35 first pivot 37 second Axis 38 of spring receiving member 40 Through hole of spring receiving member A Door B Fixed frame O Reference straight line

Claims (3)

[Claims] 1. A handle case 2 is fixed to a door A,
When locked, the handle 1 is restrained at the storage position in the handle case 2, and when unlocked, the release button 3
When the restraint of the handle 1 is released by the operation of, the handle 1 protrudes and rotates by the bias of the spring 11, and the stopper plate 7 attached to the handle 1 rotates and detaches from the metal receiving portion 8 on the fixed frame B side. In the lock handle device, the rotation angle regulating plate 12 is fitted to the locking shaft 4 so as not to be relatively rotatable, and at the end of rotation of the locking shaft 4 in the locking direction, the restricting wall surface 5 against which the regulating shoulder surface 13 of the rotation angle regulating plate 12 abuts.
And the stop wall 6 against which the regulating shoulder surface 14 of the rotation angle regulating plate 12 abuts at the end where the locking shaft 4 rotates in the unlocking direction,
The locking shaft 4 is formed in the bearing cylinder 16 of the handle case 2 into which the locking shaft 4 is inserted, and the locking shaft 4 is rotated in the locking direction between the handle case 2 and the stopper plate 7 from a region near the end of rotation in the locking direction. A spring biasing unit 30 for applying a force is provided, and the restricting shoulder surface 13 is brought into close contact with the restricting wall surface 5 in a locked state so that no contact pressure is generated between the handle 1 and the handle case 2. Lock handle device. 2. The spring biasing unit 30 comprises a spring member 31 made of one non-buckling compression coil spring or torsion spring. One end of the spring member 31 is directly or indirectly connected to the stopper plate 7 by a first pivot 35. The other end of the spring member 31 is directly or indirectly connected to the handle case 2 by a second pivot 37. When the pivot 35, which is the operating end of the spring member 31, is in the locked state, the lock shaft is locked. 2. The lock handle device according to claim 1, wherein the lock handle device is provided so as to exceed a reference straight line O connecting the pivot 4 and the pivot 37. 3. An arm plate 34 fixed to the lock shaft 4, a spring receiving member 38 provided on the immovable member 9 fixed to the handle case 2 or the idle case 2, and a base end portion at the distal end of the arm plate 34. 32a are connected by a first pivot 35, and a distal end 32b of a guide rod 32 inserted into the through hole 40 of the spring receiving member 38 and a base end 32a of the guide rod 32 Spring receiving part 33 and spring receiving member 3
A spring urging unit 30 is constituted by a compression coil spring 31 compressed between the guide rods 8, and the distal end portion 32 b of the guide rod 32 slides along the through hole 40 in response to the rotation of the stopper plate 7. The operating end of the spring member 31 that abuts on the spring receiving portion 33 while being in a locked state is provided so as to exceed a reference straight line O connecting the locking shaft 4 and the through hole 40 in a locked state. 2. The lock handle device according to claim 1, wherein