JP2001010456A - Brake operating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake operating device enabling locking and unlocking by means of a simple arrangement, requiring no large space for installation, with excellent mountability. SOLUTION: When an operating pedal 20 is operated, a projecting latch 32 abuts and rides over a ratchet 11 and meshes with the ratchet 11 at its stopped position, so that a pedal arm 20a which tends to return to its original position is held locked. When the operating pedal 20 is operated again, a rotation energizing end 42 is displaced from a rotation locking pawl 34 to a rotation- stopping dent 33 to cancel the locked state. When the pedal arm 20a is returned to its original position and a latch cam 30 abuts on a projection 13, the projecting latch 32 recedes into a recess 12 and the latch cam 30 rotates; the rotation energizing end 42 is then displaced from the rotation-stopping dent 33 to the rotation locking pawl 34 and held in a standby condition until the next operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a brake lever for operating a brake device such as a parking brake,
The present invention relates to a brake operation device such as a brake pedal, and more particularly to an improvement in a lock mechanism that enables a lock operation and a lock release operation of a brake lever, a brake pedal, and the like with a small and simple configuration.

[0002]

2. Description of the Related Art Conventionally, as a parking brake device for a vehicle such as an automobile, for example, a parking brake is locked and unlocked by depressing and re-depressing a pedal. Japanese Unexamined Patent Publication No. Hei 10-24814 and (2)
No. 287,217. In the former, a rotating lever for expanding the movement of the pawl is provided between the pawl and the turnover spring, and when the operating pedal is depressed and re-depressed, the engagement and disengagement of the ratchet rotated by the operating pedal are performed on the pawl. To do it. In the latter, a ratchet pole and a release arm that are provided to move along the long hole are connected by a turnover spring, and fixed to the pedal arm according to the relative position between the ratchet pole and the release arm. Locking and unlocking are performed by reversing the biasing direction of the ratchet pole with respect to the ratchet plate.

[0003]

However, in the above (1) and (2), a plurality of pawls, levers and the like are required to engage with and release from the ratchet, so that the structure is complicated. However, they require a large installation space.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a brake operating device having an excellent lock mechanism which can perform a locking operation and an unlocking operation with a simple structure, does not require a large installation space, and is hardly subject to installation restrictions. And

[0005]

According to a first aspect of the present invention, there is provided a brake operating device for operating a brake device biased toward a brake release position, wherein a plurality of locking latches are arranged. A latch portion, a recess formed on the extension of the latch portion of the latch portion so as to recede from the arrangement portion of the latch, and protruding from the arrangement portion of the latch adjacent to the recess portion on the extension portion of the latch. Is formed in such a manner that the projections formed in this manner are arranged continuously in sequence to form a reciprocating side, and the fixed member with a latch is fixed to the reciprocating side of the fixed member with a latch. And is biased to return to the protrusion side of the reciprocating side in the reciprocating movement,
A brake operating member for operating the brake device by a movement operation of the reciprocating side to the latch portion side in the reciprocating movement, and a brake operating member formed at a portion opposed to the reciprocating side. A cam supporting slot arranged in such a manner that a longitudinal direction thereof is along the substantially arranging direction of the latch portion, the concave portion, and the projecting portion in the reciprocating side portion, and a shaft is formed by the cam supporting slot. A cam rotatably and slidably supported, with the reciprocating movement of the brake operation member with respect to the reciprocating movement side portion,
Pivot on the protrusion side relative to the reciprocating side so that the latch can be engaged, the concave cannot be engaged, and the protrusion can be locked. A protruding latch formed so as to protrude so as to be displaced, and a turning latch formed so as to be rotatable toward the reciprocating side at a position away from the reciprocating side with respect to the protruding latch. A latch cam having a substantially circular arc-shaped recess for stopping rotation formed between the latching claw, the protruding latch and the locking claw for rotation, and capable of holding the cam in a rotation stopped state; A cam-approaching urging member supported by the operating member for use, and biasing the latch cam to be displaced so as to approach the protruding portion side in the cam supporting elongated hole; and the operating member for brake supported by the operating member for brake In the longitudinal direction of the long hole for cam support A biasing member for biasing the latch cam in a rotation biasing hole to be placed, wherein the rotation locking is performed when the shaft of the latch cam is positioned on the protrusion side in the cam supporting elongated hole. The latch cam is rotated to bias the latch cam so as to lock the claw and the latch portion of the reciprocating movement side portion, or the protrusion latch presses the latch cam with the rotation stop recess. The latch cam is rotationally urged in the opposite direction so as to be disengageable with the latch portion of the reciprocating side, and the rotation is stopped and held, and the axis of the latch cam is latched in the cam supporting slot. A cam rotation that is disengaged from the rotation locking claw and is displaced to the rotation stop holding portion or is disengaged from the rotation stop holding portion and displaced to the rotation locking claw when positioned on the unit side; An operating member for the brake, comprising: a biasing member. By operating the brake device, the operation of the brake operating member device is stopped at the operating position of the brake device, whereby the latch cam is engaged with the protruding latch and the latch portion. The cam rotation biasing member is disengaged from the rotation locking claw and displaced to the rotation stop holding portion while displacing the cam rotation urging member in the cam supporting elongated hole away from the protrusion. By locking the operation member in this position and operating the brake operation member again, the cam rotation urging member is rotated and urged by the rotation stop holding portion, so that the projecting latch moves back and forth. The latch cam is rotated to the side away from the side edge to release the engagement of the latch cam with the latch portion, and the brake operating member is moved to the protrusion. When the brake operating member is returned to the protruding portion side, the protruding latch is locked to the protruding portion so that the latch cam is located on the side away from the protruding portion. So that the latch cam is rotated by retracting the protruding latch in the concave portion, and the cam rotation urging member is disengaged from the rotation stop holding portion to thereby rotate the rotation locking claw. To
The latch cam may be biased to rotate so that the protruding latch approaches the reciprocating side.

According to a second aspect of the present invention, in the first aspect, in the long hole for cam support, the protruding portion side of the reciprocating side portion approaches the reciprocating side portion, and the latch portion side reciprocates the reciprocating side portion. The reciprocating side portion is inclined with respect to the reciprocating side portion so as to be separated from the side portion side.

[0007] In claim 3, in claim 1 or 2,
The fixing member with a latch, wherein the latch portion is formed by a ratchet in which the plurality of latches are arranged in an arc shape, and the reciprocating side portion is substantially the latch portion, the recess, and the protrusion. The brake operating member is constituted by a ratchet plate arranged in an arc shape, the brake operating member is rotatably supported on the ratchet plate, and is rotationally biased toward the protrusion. I do. Claim 4 relates to any one of claims 1 to 3,
The cam approach urging member and the cam rotation urging member are constituted by a single torsion spring. According to a fifth aspect, in any one of the first to fourth aspects, the brake operating member is connected to the brake device via a cable.

[0008]

[Operation and Effect of the Invention] [Operation at the time of brake operation] A return member is provided so as to return to the protrusion side with respect to a fixed member with a latch in which a latch portion, a concave portion, and a protrusion portion are sequentially arranged as a side portion for reciprocal movement. When the energized brake operating member is operated in the direction opposite to the return urging direction, the brake device operates. At this time, the latch cam, whose shaft is supported in the cam supporting long hole formed in the brake operating member, is biased by the cam approach biasing member so as to approach the protruding portion. While being located on the protruding portion side in the support elongated hole, it moves from the protruding portion side to the latch portion side via the concave portion while opposing the reciprocating side along with the movement of the brake operating member. Since the protruding latch is rotationally urged by the rotation urging force of the cam rotation urging member, when the latch cam reaches the latch portion via the concave portion on the side for reciprocating movement, the protruding latch contacts the plurality of latches. Move on the latch while touching.

[Operation at Brake Lock] When the operation of the brake operating member is stopped, the brake operating member
It is returned by the return biasing force, and is displaced from the stop position toward the protrusion. At this time, since the protruding latch of the latch cam is locked by the latch on the side portion for reciprocating movement, the latch cam is moved relative to the brake operating member so that the shaft in the cam supporting elongated hole is separated from the protruding portion side. Is displaced. Due to the relative displacement of the latch cam to the brake operating member, the cam rotation urging member, which has rotationally biased the latch cam with the rotation locking claw, separates from the rotation locking claw and rotates and stops. To try to bias the latch cam against the rotation stop holding portion. However, the brake operating member is urged to return to the protrusion side, and the latch cam cannot rotate because the protruding latch is locked by the latch on the reciprocating side. For this reason, the brake operating member is locked by the latch cam shaft being supported by the cam supporting elongated hole, and cannot return further to the return-biased projection.

[Operation at Release] When the brake operating member is again operated on the latch side of the reciprocating side against the return biasing force to release the brake device, the engagement between the latch cam and the latch portion is established. The latch is released and the latch cam starts to move again along the latch portion, but the rotation biasing force of the cam rotation biasing member that has already been displaced to the rotation stop holding portion acts, and the protruding latch latches. Since the rotation latch is urged to be disengageable with the portion, the latch between the protruding latch and the latch portion is released, and the rotation is stopped and held. As a result, all the engagement between the latch cam and the fixing member with the latch is eliminated,
The brake operating member is rotatable with respect to the latch-attached fixing member, and the brake operating member can be returned to the projection side in accordance with the biasing force for returning to the projection side.

[Return Operation] When the released brake operating member is returned to the protruding portion along the reciprocating movement side in accordance with the return biasing force, the latch cam is protruded after passing through the recess. At this time,
The latch cam moves relative to the brake operating member so that the shaft is displaced toward the latch portion in the cam supporting elongated hole, whereby the cam rotation urging member is disengaged from the rotation stop holding portion. I do. Further, when the brake operating member is returned to the protruding portion side by the return biasing force, the entire latch cam rotates so that the protruding latch locked by the protruding portion is retracted into the concave portion, and the brake operating member is Due to this relative rotation of the latch cam, the cam rotation urging member is in a state of being displaced toward the rotation locking claw, and waits until the next brake operation is performed.

[Operation at the time of re-operation of brake device]
When the brake operation is performed and the brake operation member is moved toward the latch portion against the return biasing force,
Since the latch of the protruding latch by the projection is released, the latch cam is moved by the displacement urging force of the cam approach urging member so that the shaft is positioned toward the projection in the cam supporting elongated hole with respect to the brake operating member. Relatively displaced. At this time,
The cam rotation urging member locks the rotation locking claw, rotationally urges the latch cam toward the reciprocating side, and the protruding latch is in a state capable of engaging with the latch portion. Again, the latch cam moves while abutting on the latch portion.

As described above, in the present invention, for example, a latch cam is provided in an elongated hole of a brake operating member such as an arm or a lever, and the latch cam is urged for displacement and rotation by a spring or the like. By simply operating the arm or lever, the locking and unlocking of the brake device can be easily performed. Therefore, a brake operation device that can be easily operated can be configured with a simple configuration using a small number of components. In addition, since the number of components is small and the configuration is simple, the device is small in size, does not require a large installation space, and is excellent in mountability. In particular, in order to reciprocate the brake operating member, it is only necessary to support the shaft, so that the structure is simplified and the number of parts can be reduced. According to the fourth aspect, since a single torsion spring is used to bias and bias the latch cam, the number of parts can be reduced, and each of the biasing and rotating biases can be reduced. Since the action point serves as a locking portion for the other urging, a smooth urging operation can be performed.
According to the fifth aspect, since the brake operating member and the brake device are connected by a cable, the mounting position of the brake operating device can be set arbitrarily, and the mounting space is not wasted and the operability is improved. Can be.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described based on an example in which the present invention is applied to the operation of an automobile parking brake device. FIG. 1 shows a brake operating device 1 for operating a parking brake device of an automobile. In the brake operation device 1, reference numeral 10 denotes a ratchet plate, and reference numeral 20 denotes an operation pedal which is depressed by a driver, and is connected to a parking brake device (not shown) by a cable. Reference numeral 30 denotes a latch cam provided on the arm 20a of the operation pedal 20, and reference numeral 40 denotes a torsion spring for biasing the latch cam.

The ratchet plate 10 has a ratchet 11 in which a plurality of latches are arranged in an arc shape, and a recess 12 for forming a retreat space for a latch cam 30 described later.
And a projection 1 for locking the latch cam 30 as well.
3 are arranged in a substantially arc shape to form a reciprocating movement side portion, and are fixed to the vehicle body by a bracket or the like (not shown) as a fixing member with a latch. Here, a portion between the concave portion 12 and the ratchet 11 is formed as a sliding side portion 14 because it corresponds to a play allowance in the parking brake device, and the ratchet 11 is not formed. Need only correspond to at least the operation area of each parking brake device, and it is not always necessary to provide the sliding side portion 14, and as shown in FIGS.
May be formed adjacent to the recess 12.

The operation pedal 20 is a ratchet plate 1
The pedal arm 20a is formed by combining two plate members that sandwich the "0" between them. When the pedal arm 20a moves to the protrusion 13 side, the pedal arm 20a returns to the return position. As
The ratchet plate 10 is rotatably supported on a shaft 20A so as to reciprocate with respect to the ratchet 11, the concave portion 12, and the protrusion 13, and is supported by a torsion spring or a coil spring (not shown). A return bias is provided so as to pivot to the side.

Each of the plate members of the pedal arm 20a is provided at a position facing the reciprocating side of the ratchet plate 10 at
A support slot 2 for supporting a latch cam 30 described later.
1 are formed along the reciprocating movement direction. In particular, in this case, the elongated slot 21 for supporting the ratchet plate 1 so that the projection 13 side approaches and the ratchet 11 side separates.
It is formed so as to be slightly inclined with respect to the zero reciprocating side. On the projection 13 side in the longitudinal direction of the support elongate hole 21 of the operation pedal 20, a biasing elongate hole 22 is formed so as to form an arc around the support elongate hole 21.

As shown in FIG. 2, the latch cam 30 has a shaft 31 that is supported by the support slot 21 and has a plate shape that fits between the two plate members of the pedal arm 20a. A protruding latch 32 that protrudes greatly from the outer peripheral edge is formed. The protruding latch 32 is configured such that the latch cam 30
Ratchet plate 1
0, the ratchet plate 10 from the projection 13 side.
So that the tip of the protruding latch 32 is engaged with the ratchet 11 when it comes into contact with the ratchet 11.
It is formed to be bent in the rotation direction.

The latch cam 30 is urged against the protruding latch 32 such that the protruding latch 32 separates from the latch plate 10 so as not to abut the latch plate 10 on the side away from the latch plate 10. A rotation stop recess 33 having a shape slightly recessed from the outer peripheral portion of the latch plate 30 is formed. Further, on the side further away from the latch plate 10 than the rotation stop recess 33, the protruding latch 32 is attached to the latch plate 10. Locking pawl 3 for applying a rotating urging force for abutting against the rotation
4 are formed.

The torsion spring 40 is provided in the rotation stop recess 33.
In addition to applying a rotational urging force to the rotation locking claw 34 and displacing and urging the entire latch cam 30 along the longitudinal direction of the support elongated hole 21, the torsion spring 40 is provided. , The support slot 21 of the pedal arm 20a
Is inserted into a large-diameter support shaft 23 formed on the opposite side of the biasing elongated hole 22 sandwiching the.

A displacement urging end 41, which is one end of the torsion spring 40, abuts against the outer peripheral portion of the latch cam 30 on the support shaft 23 side, and is opposite to the support shaft 23 with the support elongated hole 21 interposed therebetween. It is constantly displaced and biased toward the biasing long hole 22 which hits the side. The other end of the torsion spring 40, the rotation biasing end 42, is inserted into the biasing elongated hole 22 by the latch cam 30.
In the initial state (before the brake operation), as shown in FIG. 1, the latch cam 30 is locked by the rotation locking claw 34, and the latch cam 30 projects the latch 32. It is rotationally biased in the direction in which it comes into contact with the plate 10 (the leftward rotation direction in FIG. 1).

The latch cam 30 has the above-described shape, and is urged by the torsion spring 40 so that the protrusion 1
Pedal arm 20a from 3 side to ratchet 11 side
, The latch cam 30 easily pivots in a direction opposite to the rotational direction when the protruding latch 32 contacts the ratchet plate 10 against the rotational biasing force of the torsion spring 40. As a result, the projecting latch 32 can be disengaged from the ratchet plate 10, and the pedal arm 20 a supporting the latch cam 30 can be rotated.

On the other hand, when the pedal arm 20a is displaced from the ratchet 11 side to the projection 13 side by the return biasing force of the pedal arm 20a, the torsion spring 40
When the projecting latch 32 engages with the ratchet plate 10 due to the rotational urging force of the pedal arm 20a, the pedal arm 20a
Of the torsion spring 40, the projecting latch 32 cannot be disengaged from the ratchet plate 10 and the latch cam 30
When the lever 1 is in contact with the latch arm 30, the rotation of the pedal arm 20 a is stopped.
Displacement to the 3 side becomes impossible. Therefore, the pedal arm 20
"a" cannot be returned and enters the locked state.

[Description of Operation] The operation of the brake operating device 1 according to the present embodiment will be described below. [Unoperated (Brake Release) State] In the unoperated state of the brake operating device 1, the pedal arm 20a has returned to the protruding portion 11 side of the ratchet plate 10 by the return urging force. Latch 32
The latch cam 30 is biased toward the protrusion 13 by the displacement biasing end 41 of the torsion spring 40 toward the protrusion 13 in the elongated support hole 21. The latching cam 30 is actuated by the return biasing force of the arm 20a.
Is pushed back by the protrusion 13, and thus the shaft 31 is in a state of being displaced toward the ratchet 11. At this time, the torsion spring 40 pivotally biases the latch cam 30 so that the protruding latch 32 approaches the ratchet plate 10 by locking the rotation biasing end 42 with the rotation locking claw 34. I have.

[When the parking brake is operated] When the driver depresses the operation pedal 20 in order to operate the parking brake device, the pedal arm 20a rotates with respect to the ratchet plate 10 and the projection 13 side to the ratchet 11 side. And the latch cam 30 is released from being locked by the projection 13. At this time, the latch cam 30
Is urged by the displacement urging end 41,
When the latch of the protruding latch 32 from the projection 13 is released, the latch cam 30 is moved relative to the pedal arm 20a such that the shaft 31 is located on the projection 13 side in the elongated hole 21 for support. Is displaced.

The protruding latch 32 is connected to the ratchet plate 10
When the pedal arm 20a is further rotated and displaced after passing through the concave portion 12, the projecting latch 32 comes into contact with the ratchet 11 of the ratchet plate 10, as shown in FIG. Accordingly, the protruding latch 32 repeatedly meshes with the ratchet 11 against the rotation urging force of the rotation urging end 42 of the torsion spring 40 while the protrusion 13 moves on the ratchet 11.
Move to the side away from.

[Brake Lock] In the state shown in FIG. 4A, when the driver feels that the parking brake device has been actuated from the degree of depression of the operation pedal 20 and finishes the depression operation, the pedal arm 20a returns to the normal position. The urging force returns the ratchet 11 to the protrusion 13. At this time, since the protruding latch 32 of the latch cam 30 is locked to the ratchet 11 of the ratchet plate 10, as shown in FIG. As a result, the shaft 31 is relatively displaced to the side away from the projection 13 side. At the same time, since the rotation locking claw 34 is also relatively displaced in the biasing elongated hole 22 toward the support shaft 23 on the side away from the projection 13 side, the rotation locking claw 34 is locked. The rotation urging end 42 of the torsion spring 40 is detached from the rotation locking claw 34 and the rotation stopping recess 33 which is the direction of the urging force.
Displace to the side.

However, at this time, the pedal arm 20a
Is urged to return to the protrusion 13 side, and at the same time, the protruding latch 32 is locked to the ratchet 11, and the shaft of the latch cam 30 is locked to the ratchet 11 side in the support elongated hole 21. The latch cam 30
Cannot rotate the protruding latch 32 to the side where it is disengaged from the ratchet 11, prevents the pedal arm 20a from returning, and maintains the pedal arm 20a in the locked state.

[Release] When the driver again depresses the operation pedal 20 toward the ratchet 11 against the return biasing force to release the parking brake device, the latch cam 30 is twisted as shown in FIG. The protruding latch 32 rotates toward the side where it is detached from the ratchet 11 against the urging force of the spring 40, and the engagement between the protruding latch 32 and the ratchet 11 is released. With this rotation, the rotation urging end 42 is displaced into the rotation stopping recess 33 of the latch cam 30 and the latch cam 30 is held in the rotation stopped state. Disappears, and the pedal arm 20a can be returned to the protrusion 13 side.

[Return] When the released pedal arm 20a is returned along the ratchet plate 10 from the ratchet 11 through the concave portion 12 to the projection 13 according to the return urging force, as shown in FIG. In the latch cam 30, the protruding latch 32 is locked to the projection 13. As a result, the latch cam 30 is displaced relative to the pedal arm 20a such that the shaft 31 is displaced toward the ratchet 11 in the elongated support hole 21 as shown in FIG. With the return of the pedal arm 20a, the protruding latch 32 is retracted into the concave portion 12, and the latch cam 30 is rotated in the rotation biasing direction by the torsion spring 40.

With the above-described displacement and rotation of the latch cam 30, as shown in FIG. 6C, the rotation urging end 42 separates from the rotation stop recess 33, and the rotation locking claw is formed. In this state, the rotation urging end 42 does not lock the rotation locking claw 34 in this state. In this state, the apparatus waits until the next operation of depressing the operation pedal 20 is performed.

[When the brake device is re-operated] In order to operate the parking brake device again, the operation pedal 20 is operated.
Is depressed, the locking of the protruding latch 32 by the projection 13 is released, and the latch cam 30 is driven by the displacement urging force of the torsion spring 40 so that the shaft 31
So that the pedal arm 20a
Relative to. At this time, the torsion spring 40
The rotation urging end 42 locks the rotation locking claw 34 and urges the latch cam 30 to rotate toward the ratchet plate 10 so that the protruding latch 32 can be engaged with the ratchet 11. Then, the latch cam 30 moves again while abutting on the ratchet 11. (See Fig. 3)

As described above, in the present invention, the latch cam 30 is provided in the elongated hole formed in the pedal arm 20a of the operation pedal 20 for operating the brake, and the torsion spring 40 is provided.
By simply biasing the latch cam 30 for displacement and rotation, the parking brake device can be easily locked and unlocked in accordance with the pedal arm 20a. Therefore, a brake operation device that can be easily operated can be configured with a simple configuration using a small number of components. In addition, since the number of components is small and the configuration is simple, it is small, and there is no need for a large installation space.
Excellent mountability.

FIG. 7 shows a second embodiment of the present invention. The second embodiment is for manually operating a parking brake device of a motorcycle, and is provided with a foldable manual lever 20b instead of the above-mentioned pedal arm 20a. In this embodiment, as for the manual lever 20b, the solid line indicates the operation start state, and the state of the dashed line A indicates the manual lever 20b.
The dashed-dotted line B indicates the operation completion position of the parking brake device. Just like the above embodiment,
Locking and unlocking can be performed by operating only the manual lever 20b.

In each of the above embodiments, the brake operating device having the arm and the lever which rotate with respect to the ratchet plate is shown. However, the latch is arranged so as to be slidable in parallel with the latch plate which is linearly arranged. The slider may be provided with a latch cam, and the slider may be pushed by a pedal.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of a brake operating device of the present invention.

FIG. 2 is a perspective view showing a latch cam according to the present invention.

FIG. 3 is a diagram for explaining an operation of the brake operating device according to the first embodiment of the present invention, and shows an initial state of operation start.

FIGS. 4A and 4B are diagrams for explaining an operation at the time of brake locking in the first embodiment of the brake operating device of the present invention, wherein FIG. 4A shows a brake operation completed state and FIG. 4B shows a brake locked state.

FIG. 5 is a view for explaining an operation at the time of release in the first embodiment of the brake operating device of the present invention.

FIG. 6 is a view for explaining an operation at the time of return of the pedal arm in the first embodiment of the brake operating device of the present invention.

FIG. 7 is a schematic view showing a second embodiment of the brake operating device of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Brake operating device 10 Ratchet plate (reciprocating movement side portion, fixed member with latch) 11 Ratchet (latch portion) 12 Recess 13 Projection 20 Operating pedal (operating member for brake) 20a Pedal arm (operating member for brake) 21 Support Long hole for cam support (Long hole for cam support) 22 Long hole for urging 23 Support shaft 30 Latch cam 31 Shaft 32 Projection latch 33 Depression for rotation stop 34 Locking claw for rotation 40 Torsion spring (Cam approach urging member, cam rotation (Moving biasing member) 41 Displacement biasing end 42 Rotation biasing end

Claims (5)

[Claims] A brake operating device for operating a brake device biased toward a brake release position, wherein a latch portion in which a plurality of latches are arranged, and the latch portion of the latch portion is extended. A concave portion formed so as to recede from the arrangement portion of the latch, and a projection portion formed adjacent to the concave portion and protruding from the arrangement portion of the latch in the extension of the arrangement of the latch are successively arranged in order. And a fixing member with a latch that is fixed by constituting a reciprocating side, and the reciprocating movement in the reciprocating movement is supported so as to reciprocate with respect to the reciprocating side of the latching fixing member. A brake that is urged to return to the protruding portion side of the side edge portion and operates the brake device by an operation of moving the reciprocating side portion to the latch portion side in the reciprocating movement. An operating member, formed on a portion of the brake operating member facing the reciprocating movement side, and having a longitudinal direction substantially along the arrangement direction of the latch portion, the concave portion, and the protrusion on the reciprocating movement side. And a cam whose shaft is rotatably and slidably supported by the cam supporting slot, wherein the brake operating member with respect to the reciprocating side portion is provided. With the reciprocating movement, the reciprocating side is engaged so as to be engageable with the latch, not engageable with the concave portion, and engageable with the protrusion. A protruding latch formed to protrude so as to be rotationally displaced on the protruding side with respect to the protruding portion, and a rotation latch toward the reciprocating side at a position away from the reciprocating side relative to the protruding latch. A rotation locking claw formed so as to be stoppable, A rotation cam recess formed between the output latch and the rotation locking claw and capable of holding the cam in a rotation stop state, the latch cam having a substantially arc shape, and supported by the brake operation member; A cam approach urging member for displacing and urging the latch cam so as to approach the protruding portion side in the cam supporting elongated hole; and a cam supporting member supported by the brake operating member for supporting the cam of the brake operating member. A biasing member for biasing the latch cam in a rotation biasing hole positioned in a longitudinal direction of the elongated hole, wherein the shaft of the latch cam is positioned on the protrusion side in the cam supporting elongated hole. The latch cam is rotated to bias the latch cam so that the protruding latch is locked to the latch portion of the reciprocating side, or the latch cam is rotated by the rotation stop recess. The protruding latch is the The latch cam is rotationally urged in the reverse direction so as not to be engaged with the latch portion on the backward movement side portion, and is rotationally stopped and held. The axis of the latch cam is held in the cam supporting slot by the latch. A cam rotation that is disengaged from the rotation locking claw and is displaced to the rotation stop holding portion or is disengaged from the rotation stop holding portion and displaced to the rotation locking claw when positioned on the unit side; A biasing member, the brake device is operated by operating the brake operation member, and the operation of the brake operation member device is stopped at an operation position of the brake device, thereby protruding the protrusion. The engagement between the latch and the latch portion displaces the latch cam toward the side away from the protrusion in the cam supporting elongated hole, and disengages the cam rotation urging member from the rotation locking claw, Rotation The operating member for the brake in a state of displacing the stopper holding portion and locked in said position by operating the operation member for again the brake,
When the cam rotation urging member is rotationally urged by the rotation stop holding portion, the protruding latch pivots the latch cam to a side away from the reciprocating side, and the latch cam latches. Disengagement of the brake operating member to the protruding portion side by disengaging the engagement with the portion, when the brake operating member is returned to the protruding portion side,
By locking the projecting latch to the projecting portion and displacing the latch cam so as to be located on the side away from the projecting portion, the latch cam is rotated by retracting the projecting latch in the recess. The cam rotation urging member is disengaged from the rotation stop holding portion and displaced to the rotation locking claw, and the latch cam is rotated so that the protruding latch approaches the reciprocating side. A brake operating device characterized by vibrating. 2. The cam support slot, wherein the protruding portion side of the reciprocating movement side portion approaches the reciprocating movement side portion, and the latch portion side is separated from the reciprocating movement side portion side. 2. The brake operating device according to claim 1, wherein the brake operating device is arranged to be inclined with respect to the reciprocating side. 3. The fixing member with a latch, wherein the latch portion includes a ratchet in which the plurality of latches are arranged in an arc shape, and the reciprocating side portion includes the latch portion, the concave portion, The protrusion is constituted by a ratchet plate arranged in a substantially arc shape, and the brake operating member is rotatably supported by the ratchet plate,
The brake operating device according to claim 1, wherein the brake operating device is rotationally biased toward the protrusion. 4. The brake operating device according to claim 1, wherein the cam approach urging member and the cam rotation urging member are constituted by a single torsion spring. 5. The brake operating device according to claim 1, wherein the brake operating member is connected to the brake device via a cable.