JPH11310118A - Parking brake operating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain an operation lever in the erecting condition by maintaining the engaging condition of a hook member and an engaging pin securely, to facilitate the operation when the engagement is released and the operation lever is let prostrate, and to obtain a simple and low cost structure with few number of part items. SOLUTION: In this device, the engaging condition of the connecting pin 28 provided to an operation lever 14, and the hook member 72 provided to an operation lever 16 is maintained mechanically by a ratch member 74, while the operation knob 104 of a ratch operation member 78 is pressed and operated to the front side. As a result, the postures of the hook member 72 and the ratch member 74 are changed to remove the connecting pin 28 from the hook member 74, and the operation lever 16 can be let prostrate to the front side.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parking brake operating device and, more particularly, to an improvement in an operating device capable of lowering an operating lever while maintaining an operating state of a parking brake.

[0002]

2. Description of the Related Art A type of parking brake operating device for an automobile has the following features.
A sector provided with a ratchet along an arc shape centered on an axis; and (b) a pole disposed on the sector rotatably about the first axis and meshing with the ratchet. A parking brake cable is connected to the second brake so as to be rotatable about a second axis substantially parallel to the center, and a brake release position at which the parking brake is released, and a brake position at which the parking brake is operated. An operating lever that is reciprocated between the two and is held at its brake position by engagement of the ratchet with the pawl; and (c) disposed in the sector so as to be rotatable about the first axis. When the pull-up operation is performed from the original position in the lying state, the operation lever at the brake release position is integrally turned to the brake position side, and the operation lever is moved. An operating lever capable of pivoting to leave the original position side and held in its braking position, (d)
There is a mechanism having a release mechanism for rotating the pawl in a direction in which the pawl is disengaged from the ratchet by operating a release operation member disposed on the operation lever. According to such a parking brake operating device, since the operating lever can be in the down state even when the parking brake is in operation, the operating lever is not in the way and is disposed between the driver's seat and the passenger seat, for example. In such a case, there is an advantage such that it is easy to move between them.

The device described in Japanese Utility Model Laid-Open No. Hei 5-16535 is an example of such a device, in which a hook member provided on an operating lever is engaged with an engaging pin provided on the operating lever so that the operating lever is always provided. The operation lever is held in an upright state, and the engagement of the hook member and the engaging pin is released by a release lever provided on the operation lever, whereby the operation lever is allowed to fall.

[0004]

However, in such a conventional parking brake operating device, the hook member is engaged with the engaging pin in accordance with the urging force of the spring. There is a possibility that the engagement with the engagement pin becomes impossible, and the operation lever cannot be held in the upright state. Further, since the release lever is urged by the spring, it is necessary to operate the operation lever to fall down while performing the release operation against the urging force of the spring, and the operation is troublesome. Furthermore, since the release lever and the hook member are arranged on separate members and are urged by springs, respectively, the number of parts increases, and when adjusting the operating force of the release lever, the spring force of the pair of springs is reduced. Adjustment was troublesome because it had to be changed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to ensure that the engagement between the hook member and the engagement pin can be maintained, and that the operation can be performed by releasing the engagement. The operation when the lever is turned down is easy,
Moreover, it is an object of the present invention to provide a parking brake operating device having a simple and inexpensive configuration with a small number of parts.

[0006]

In order to achieve the above object, a first invention is to provide: (a) a ratchet that is fixedly attached to a vehicle body and is formed along an arc shape centered on a first axis; And (b) a pole disposed in the sector so as to be rotatable about the first axis and meshing with the ratchet, and a pole about a second axis substantially parallel to the first axis. Movably provided, and a parking brake cable is connected, and is reciprocated between a brake release position where the parking brake is released and a brake position where the parking brake is operated,
An operating lever which is held at a brake position by engagement of the ratchet with the pawl;
The operation lever is disposed in the sector so as to be rotatable about an axis, and when the pull-up operation is performed from the original position in the lying state, the operation lever in the brake release position is integrally rotated to the brake position side, and the operation is performed. An operating lever capable of rotating to the original position side while holding the lever at its brake position; and (d) operating the release operating member disposed on the operating lever to move the pawl to the ratchet. A release mechanism for rotating in a direction in which the engagement with the release mechanism is released.
(e) an engagement pin provided integrally with one of the operation lever and the operation lever substantially parallel to the first axis, and (f) an engagement groove engageable with the engagement pin. And is disposed on the other of the operating lever and the operating lever so as to be rotatable about a third axis substantially parallel to the first axis, and at a predetermined release position around the third axis, The engagement pin is disengaged from the engagement groove, allowing the operation lever to rotate to the original position side with respect to the operation lever at the brake position, and operating the lever while the operation lever is held at the brake position. When the pulling operation is performed from the original position side, a protrusion continuously provided on one side wall of the engagement groove is engaged with the engagement pin and rotated from the release position to the lock position, Hook portion into which the engagement pin enters the engagement groove (G) the hook member is disposed on the same member on which the hook member is disposed so as to be rotatable about a fourth axis substantially parallel to the third axis, and is predetermined around the fourth axis. At the lock holding position, the hook member is engaged with the hook member rotated to the lock position, thereby mechanically positioning the hook member at the lock position,
By preventing the operation lever from relatively rotating with respect to the operation lever by engagement of the engagement groove and the engagement pin, by being rotated from the lock holding position to the lock release position, A latch member for allowing the hook member to rotate to the release position; and (h) a latch member provided in association with the latch member and the hook member, wherein the latch member is moved from the lock holding position to the lock release position. The hook member is mechanically rotated from the lock position to the release position to be positioned with the rotation operation, and the hook member is rotated from the release position to the lock position. And interlocking positioning means for mechanically rotating and positioning the latch member from the unlocked position to the locked position.

According to a second aspect, in the parking brake operating device according to the first aspect, the interlocking positioning means (a) biases the hook member to rotate from the lock position to the release position, Urging means for urging the latch member to rotate from the unlock position to the lock holding position side; (b) the hook member is held at the lock position by the urging force of the urging means. And a first stable state in which the latch member is held in the lock holding position, and a second stable state in which the hook member is held in the release position and the latch member is held in the unlock position. And a positioning mechanism provided so as to extend over the hook member and the latch member. When the latch member is engaged and rotated to the lock position, the state is switched to the first stable state against the urging force of the urging means, and the latch member is rotated to the unlock position in the first stable state. The operation is switched to the second stable state against the urging force of the urging means.

According to a third aspect of the present invention, in the parking brake operating device according to the second aspect of the present invention, the urging means rotates the hook member from the lock position to the release position side and moves the latch member to the lock release position. A single spring that is disposed so as to straddle the hook member and the latch member so as to rotate from the lock holding position side to the lock holding position side.

[0009]

In such a parking brake operating device, the hook member is rotated to the lock position to be engaged with the engaging pin, and the latch member is mechanically positioned at the lock position by the latch member. Thus, the relative rotation between the operation lever and the operation lever is prevented, and the operation lever can be held in the upright state when the parking brake is operated. In this state, when the latch member is turned to the unlock position, the hook member is turned to the release position by the interlocking positioning means, the engagement with the engagement pin is released, and the relative rotation between the operation lever and the operation lever is released. The movement is allowed, and the operation lever can be turned to the original position side with respect to the operation lever held at the brake position. Further, when the operation lever is pulled up in this state, the hook member is rotated to the lock position by engagement with the engagement pin, and the latch member is accordingly rotated to the lock holding position. Relative rotation is automatically prevented. When the release operation member is operated in this state to release the engagement between the pawl and the ratchet, the operation lever is returned to the brake release position by lowering the operation lever to the original position, and the parking brake is released. .

Here, in the present invention, the hook member and the latch member are disposed on the same member, that is, the other of the operating lever and the operating lever, and the hook member is mechanically positioned at the lock position by the latch member. Since the engagement state between the hook member and the engagement pin is maintained, there is no possibility that the hook member and the engagement pin cannot be engaged due to damage of the spring and the operation lever cannot be held in the upright state.

Further, when the latch member is rotated from the lock holding position to the unlock position, the hook member is mechanically rotated from the lock position to the release position by the interlocking positioning means. Even if the operation force on the member is released, the disengagement state between the hook member and the engagement pin is maintained, and the operation lever can be easily folded down to the original position side, while the operation lever is raised in that state The hook member is automatically rotated from the release position to the lock position by engagement with the engagement pin, and the latch member is mechanically rotated from the unlock position to the lock holding position by the action of the interlocking positioning means. In addition, since the positioning is performed, an operation for returning the latch member to the lock holding position is unnecessary, and the operation lever is tilted when the parking brake is operated. The operation of the operation lever, including the operation is extremely easy.

In the second invention, the interlocking positioning means is constituted by the urging means and the positioning mechanism, the first stable state in which the hook member is held at the lock position and the latch member is held at the lock holding position, and the hook member is The hook member is positioned in the second stable state in which the latch member is held in the release position and the latch member is held in the unlocked position, and the hook member is engaged with the engagement pin and rotated to the lock position in the second stable state. The first stable state is switched to the first stable state against the urging force of the urging means. In the first stable state, the latch member is turned to the unlocked position, so that the latch member is turned against the urging force of the urging means. 2. Since the operation can be switched to the stable state, the operation of the hook member and the latch member is stabilized, and at the same time, generation of abnormal noise due to rattling of the hook member and the latch member. There is prevented.

In the third aspect of the present invention, since the urging means is a single spring disposed over the hook member and the latch member, the urging means is compared with a case where the springs are urged by separate springs. As a result, the device is configured simply and inexpensively. Also,
Since the operating force when rotating the latch member to the unlock position is determined based on the biasing force of a single spring,
The adjustment of the operating force is easy.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The parking brake operating device of the present invention is disposed between a driver's seat and a passenger's seat in a substantially horizontal position, that is, in a posture in which an operation lever is lowered substantially horizontally toward the front of a vehicle. Although it is preferably applied in the case where it is performed, it can be applied to a parking brake operating device disposed in another place. In the arrangement mode, the operation lever does not necessarily have to be in a substantially horizontal posture, but may be in a substantially vertical posture. The term “down” means a state in which the operation lever is pulled up to operate the parking brake is set to an upright state, and the state is lowered from the upright state to the original position side.

An engaging pin may be provided on one of the operating lever and the operating lever, and a hook member and a latch member may be provided on the other of the operating lever and the operating lever. If the member and the latch member are arranged on the operation lever, the latch member that is rotated by the driver is disposed on the operation lever that is also rotated by the driver. Property is obtained. The latch member does not necessarily need to be directly operated by the driver, and a rotatable or slidable latch operation member mechanically connected to the latch member may be provided.

The interlocking positioning means is preferably constituted by a biasing means and a positioning mechanism as in the second invention.
The positioning mechanism is composed of a cam, a link, and the like. For example, a rotation resistance is applied to a hook member or a latch member to prevent free rotation, and the hook member is engaged with an engagement pin to rotate to a lock position. The latch member is mechanically rotated from the unlock position to the lock holding position by an interlocking mechanism such as a cam or a link, and the latch member is turned to the unlock position by the interlocking mechanism. The member may be mechanically pivoted from the locked position to the released position.

Further, the urging means of the second invention urges the hook member to rotate from the lock position to the release position, and also rotates the latch member from the unlock position to the lock holding position. In the first embodiment of the present invention, for example, urging means for urging the hook member to rotate from the lock position to the release position side, or lock the latch member from the unlock position to the lock holding position Either one of the urging means for urging to rotate to the position side may be provided. The interlocking positioning means may include a turnover type detent mechanism for positioning the latch member at the lock holding position and the unlock position, or positioning the hook member at the lock position and the release position, respectively. .

In the third aspect of the invention, the biasing means is constituted by a single spring disposed over the hook member and the latch member. Alternatively, the hook member and the latch member may be separately biased. As these springs, various springs, such as a tension coil spring, a compression coil spring, and a torsion coil spring, can be adopted according to the arrangement form.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a parking brake operating device 10 according to an embodiment of the present invention, and is substantially horizontal to a floor of a vehicle body or the like in a posture in which the left direction of the drawing is forward of an automobile between a driver's seat and a passenger seat. It is arranged in. The parking brake operating device 10 includes a sector 12 integrally fixed to a floor of a vehicle body and the like, and a first axis O
An operation lever 14 and an operation lever 16 are provided so as to be rotatable around _one .

As also shown in FIG.
Is provided with a ratchet 18 along an arc shape centered on the first axis O ₁ , while the operating lever 14 is turned around a second axis O ₂ parallel to the first axis O _1. capable pawl 20 is provided, FIG. 1, so that the rotation around the left of the first axis O ₁ 2 is prevented by being engaged with the ratchet 18. (A) of FIG.
(b), (c) and (d) are views showing AA section, BB section, CC section and DD section in FIG. 2, respectively.
As is apparent from these figures, the operating lever 14 includes a pair of plates 22 and 24 located on both sides of the sector 12,
A plurality of connecting pins 26, 2
8, 30, 32, and 34, and the pole 2
Reference numeral 0 denotes a torsion coil spring 3 supported by the connection pin 30 and disposed around the connection pin 32.
6 urges the ratchet 18 in a counterclockwise direction so as to mesh with the ratchet 18. The pair of plates 22, 24 are rotatably supported in the first around the axis O ₁ through the sleeve 38 disposed through the sector 12. The connection pin 28 also functions as an engagement pin.

A guide plate 40 is provided on one plate 24, and a parking brake cable 42 (see FIG. 1).
Are guided along the guide groove 44, and the end of the parking brake cable 42 is locked to the operating lever 14. Accordingly, the actuating lever 14, the brake release position shown in Figures 1 and 2, when is rotated clockwise about the first axis O _1,
The parking brake cable 42 is pulled to operate the parking brake of a wheel (not shown), and is held at the brake position by engagement of the pawl 20 and the ratchet 18 to maintain the operating state of the parking brake. The connecting pin 2 at this time is
Notches 46 of the circular arc shape is provided so as to permit the first axis O ₁ about the pivot 6.

The operation lever 16 is shown in FIGS.
FIG. 5A showing an A section, a BB section, and a CC section,
(b), (c) is configured as specifically shown, the grip portion 50 is rounded into a substantially cylindrical shape, and provided continuously to the grip portion 50, the operating lever 12 It has a pair of parallel plate parts 52 and 54 located on both sides. A through hole 56 is provided in the pair of parallel plate portions 52 and 54, and the rotation about the first axis O ₁ is performed via a support shaft 58 (see FIG. 1) penetrating the through hole 56 and the sleeve 38. capable together are disposed in a sector 12, a plurality of connecting pins 60, 62, 64 to be parallel to the first axis O ₁ is provided in the attached state to the sector 12. The connecting pin 66 (see FIG. 1) is attached to the through hole 67 in a state where the connecting pin 66 is attached to the sector 12. And
While the pulling operation clockwise from the original position of the inclined state showing the grip portion 50 to be gripped 1, the sector 12, allows the rotation of the first around the axis O ₁ of the connecting pin 66 at this time A notch 68 (see FIG. 2) having an arc shape is provided so as to perform the above operation. The original position of the operation lever 16 is, for example, the connecting pin 66.
And the notch 68 of the sector 12.
Further, the grip 50 of the operating lever 16 and the parallel plates 52, 5
4 is covered with a synthetic resin cover 70 (see FIG. 1).

A hook member 72 is attached to the connection pin 60 so as to be rotatable around a third axis O ₃ as its axis, and a fourth axis O as its axis is attached to the connection pin 62.
₄ about pivotably latch member 74 and the release lever 76 is attached to, the connecting pin 64, is mounted pivotably latch operating member 78 around the fifth axis O ₅ is its axis . The hook member 72 and the latch member 74 are disposed at a position located on the vehicle front side with respect to the sector 12 with the operation lever 16 held in the original position as shown in FIG. Also, one parallel plate portion 5
A spring plate 80 is provided inside 2 and is slidably contacted with the plate 22 of the operation lever 14 so that a predetermined rotation resistance is applied when the operation lever 14 is relatively rotated. . It is also possible to provide a moderation feeling at the start of relative rotation by providing an engagement groove or an engagement protrusion for engaging with the spring plate 80 on the plate 22 or the like. In this embodiment, the hook member 72, the latch member 74, and the release lever 76 are all made of a metal material, but may be made of a synthetic resin material if the strength is possible.

As shown in FIG. 6, the hook member 72 includes a cylindrical sleeve 81 fitted to the connecting pin 60 via a bearing or the like, and an engaging groove 82. As shown in FIG. by connecting pin 28 is held in the intruded locking position in the engagement groove 82, the relative rotation of the operation lever 16 and the actuating lever 14 in the first axis O ₁ around is prevented, both integrally It is pivoted to the first axis O ₁ about. Therefore, the brake release position of the operation lever 14 is defined by the engagement between the hook member 72 of the operation lever 16 and the connection pin 28 held at the original position. When the operation lever 16 is pulled up from the original position,
As shown in FIG. 13, the operating lever 14 is rotated from the brake release position to the brake position, the parking brake is operated, and the pawl 20 and the ratchet 1 are moved.
The operation lever 16 is held in an upright state by the operation lever 14 being held at the brake position by meshing with the operation lever 8.

On the other hand, in a state where the connecting pin 28 as shown in FIG. 14 is held in the release position to get out of the engagement groove 82, the operating lever 16 is first axis O ₁ of the left-handed with respect to the operating lever 14, That is, relative rotation to the original position is permitted, and only the operation lever 16 is moved to the original position as shown in FIG. 15 while the operating lever 14 is held at the brake position, in other words, the operating state of the parking brake is maintained. Can fall down to the side. The operating lever 14, the notch 84 of the circular arc shape is provided so as to permit rotation of the first around the axis O ₁ of the connecting pin 66 at this time. At this time, the falling position of the operation lever 16 is the same as the original position, and is defined by the engagement of the connecting pin 66 with the notch 68 of the sector 12. Stipulated by agreement,
The hook member 7 is determined based on the position of the operating lever 14 at that time.
When the original position of the operating lever 16 is defined by the engagement of the operating lever 16 with the connecting pin 28,
6 may be different from the original position. 14 and 15, the hook member 72, the latch member 74, and the latch operation member 7 are provided for easy understanding.
8 and the like are shown by solid lines.

The hook member 72 is also provided with a protruding portion 86 continuously on one side wall of the engaging groove 82, as shown in FIG.
When the operating lever 16 is raised from the falling state of 5, the projection 86 is engaged with the connecting pin 28 to rotate counterclockwise around the third axis O ₃ ,
The connecting pin 28 is automatically returned to the locked position where it enters the engagement groove 82. FIG. 6A is a front view, and FIG. 6B is a right side view of FIG.

The hook member 72 has a pair of recesses 9.
A cam 90 is provided, which comprises a cam 90a and a projection 90c therebetween, and is engaged with the claw 92 of the latch member 74 shown in FIG. It is designed to be positioned at each position. That is, as shown in FIGS. 8 and 9, a tension coil spring 94 is stretched between the hook member 72 and the latch member 74, and the tension coil spring 9
8, a first stable state in which the claw portion 92 of the latch member 74 engages with the recess 90a according to the urging force of FIG.
As shown in (2), the claw portion 92 of the latch member 74 is positioned in the second stable state in which the claw portion 92 engages with the recess 90b. In the first stable state shown in FIG. 8, the hook member 72 is held in the lock position and the latch member 74 is held in the lock holding position. 3 axis O ₃ about the rotation is mechanically limited. In the second stable state of FIG.
The hook member 72 is held at the release position and the latch member 74 is held at the lock release position. 7A is a front view, and FIG. 7B is a right side view of FIG. 7A. The cylindrical sleeve 9 is fitted to the connecting pin 62 via a bearing or the like.
1 are provided integrally.

In the first stable state shown in FIG. 8, when the latch member 74 is rotated clockwise to the lock release position around the fourth axis O ₄ , the claw portion is pressed against the urging force of the extension coil spring 94. The latch member 74 and the hook member 72 are switched to the second stable state shown in FIG. 9 while the hook member 72 is engaged with the connection pin 28 in the second stable state shown in FIG. When rotated to the lock position, the claw portion 92 rides over the convex portion 90c against the urging force of the extension coil spring 94, and the latch member 74 and the hook member 72 are switched to the first stable state shown in FIG. In the present embodiment, since the tension coil spring 94 is provided, the above operation is performed stably and abnormal noise due to rattling or the like is prevented, but even if the tension coil spring 94 is omitted, The engagement between the projection 86 and the latch member 74 provides substantially the same operation and effect as described above. The tension coil spring 94 corresponds to an urging means, and the cam 90 and the claw portion 92 correspond to a positioning mechanism, and the urging means and the positioning mechanism constitute an interlocking positioning means.

The hook member 72 shown by a solid line in FIG.
FIG. 1 shows a state in which the operating lever 16 is held at the original position and the operating lever 14 is held at the brake release position, and the operating lever 16 is being pulled up. The connecting pin 2 is formed on the lower side wall of the engaging groove 82 of the hook member 72 by the tension.
8 is brought into contact. As a result, a moment in the counterclockwise direction of the third axis O ₃ is generated in the hook member 72, but the rotation of the hook member 72 is prevented by the engagement between the projection 86 of the hook member 72 and the latch member 74. actuating lever 14 is pivoted clockwise around the operating lever 16 integrally with the first axis O ₁ parking brake is actuated by. Note that the operating force when pulling up the operating lever 16 does not necessarily need to be transmitted from the hook member 72 to the operating lever 14 via the connecting pin 28, and is operated by, for example, engaging the connecting pin 66 with the notch 84. The transmission from the lever 16 to the operation lever 14 can also be performed. In other words, when the operation lever 16 is pulled up, the connection between the engagement groove 82 of the hook member 72 and the connection pin 28 before the relative rotation of the operation lever 14 with respect to the operation lever 16 is prevented. The pin 66 and the notch 84 may be engaged so that the operating lever 14 can be rotated integrally with the operating lever 16.

The hook member 72 shown by a two-dot chain line in FIG. 8 is operated with the operating lever 16 in the state where the operating lever 14 is held at the brake position by the engagement between the pawl 20 and the ratchet 18 as shown in FIG. The connection pin 28 is brought into contact with the upper side wall of the engagement groove 82 of the hook member 72 by the gravity or the like. Thereby, the third hook member 72
Although clockwise direction moment of the axis O ₃ occurs, the rotation of the hook member 72 is prevented by the abutment of the claw portion 92 and the recess 90a of the latch member 74, rotating to the original position side of the operating lever 16 Movement is blocked.

The latch member 74 is provided with an engagement groove 100, and is engaged with the latch operation member 78 via the engagement groove 100. The latch operation member 78 is integrally formed of synthetic resin, and is shown in FIGS.
As shown in FIG. 5, a cylindrical sleeve 101 fitted to the connection pin 64 via a bearing or the like, an engagement pin portion 102 engaged with the engagement groove 100, and an operation knob operated by a driver or the like 104 are provided integrally. The operation knob 104 projects upward from a not-shown notch provided on the operation lever 16 and
Also notches provided, so that the possible rotation operation to the fifth axis O ₅ about. The sleeve 101 has a notch 106 for avoiding interference with the release lever 76. FIG. 10 is a perspective view, FIG. 11 (a) is a front view, FIG. 11 (b) is a right side view of FIG. 11 (a), and FIG.
(D) is a cross-sectional end view taken along the line DD in (a).

Then, as shown in FIG.
In a state in which 6 is pulled operated, when the operation knob 104 is pressed into the latching switching position of the tip side of the operation lever 16 (the upper left direction in FIG. 13), the latch operating member 78 left fifth axis O ₅ The latch member 74 and the hook member 72 are switched to the second stable state shown in FIG. 9 by rotating the latch member 74 clockwise about the fourth axis O ₄ . Can be FIG. 14 shows a state in which the operation knob 104 is pressed to the latch switching position and switched to the second stable state in this manner, and the rotation of the hook member 72 to the release position at this time is allowed. , the operating lever 16 is pivoted in the slightly forward (first left about the axis O ₁₎ as compared to the state of FIG. 13. Further, in the second stable state, the hook member 72 is rotated to the lock position by engagement with the connecting pin 28, and when the hook member 72 and the latch member 74 are switched to the first stable state, the latch The operation member 78 is automatically returned to the initial position shown in FIGS.

As shown in FIG. 12, the release lever 76 has a cylindrical sleeve 110 fitted to the connection pin 62 via a bearing or the like, and a connection portion 112 provided with a through hole parallel to the sleeve 110. And the pole 20
The contact portion 114 is provided integrally with the contact portion 114 so as to contact the contact portion. As shown in FIG. 4, a release rod 116 disposed in the grip 50 of the operation lever 16 is connected to the connecting portion 112.
Are rotatably connected around an axis parallel to the fourth axis O ₄ , and when the release knob 118 is pushed into the grip 50, the release lever 76 is moved to the axis O _4.
Is rotated clockwise, and the contact portion 114 is
Is rotated in the clockwise direction, where it is brought into contact with the rear end portion and the engagement with the ratchet 18 is released. Release knob 1
Reference numeral 18 denotes a gripper 5 by a compression coil spring 120.
It is urged in a direction to protrude from zero, and its protruding position is defined by the engagement between the release lever 76 and the connecting pin 64. The release lever 76, the release rod 116, the release knob 118 and the like constitute a release mechanism, and the release knob 118 corresponds to a release operation member.

Such a parking brake operating device 1
0, the hook member 72 and the latch member 74 are held in the first stable state when the operation lever 16 is lowered to the original position and the operation lever 14 is in the brake release position as shown in FIG. The connection pin 28 is engaged in the engagement groove 82 of the member 72. Accordingly, when the operating lever 16 is pulled up in this state, the operating lever 14 is rotated clockwise about the first axis O ₁ integrally with the operating lever 16, and the parking brake cable 4 is turned on.
2 is pulled to activate the parking brake, and the engagement of the pawl 20 and the ratchet 18 holds the operating lever 14 in the brake position as shown in FIG. Is maintained. Also, the hook member 7
The operation lever 16 is held in an upright state by the engagement of the connecting pin 28 with the connecting pin 28.

[0035] Then, during operation of such a parking brake, when presses the operation knob 104 of latch operating member 78 forwardly of latching switching position, the latch member 74 is rotated clockwise about the fourth axis O ₄ By being
The latch member 74 and the hook member 72 are switched to the second stable state, and as shown in FIG.
The connecting pin 28 comes out of the engaging groove 82 of the above. This allows the operating lever 16 to fall down to the original position as shown in FIG. 15 while the operating lever 14 is held at the brake position, in other words, the operating state of the parking brake is maintained. Therefore, the operation lever 16 is not in the way and can easily move between the driver's seat and the passenger seat. In particular, in this embodiment, the hook member 72 and the latch member 74 are disposed at a position located on the vehicle front side with respect to the sector 12 when the operation lever 16 is in the down state, so that the height of the operation device 10 in the down state is increased. Small size. Such an operation of lowering the operation lever 16 may be performed as needed, and it is a matter of course that the operation lever 16 may be left standing while being held upright. 14 and 15 in which the operation knob 104 of the latch operation member 78 is pressed to the latch switching position, even if the release knob 118 is pressed, the connecting portion 112 of the release lever 76 and the latch operation member 78 are pressed. The rotation of the release lever 76 is prevented by the engagement with the projection 105 of FIG. 4. In the case of FIG. 4, the disengagement of the pawl 20 and the ratchet 18 is prevented.

Thereafter, when releasing the parking brake, first, the operating lever 1 lying down as shown in FIG.
6 up to the state of FIG. During the raising operation, the hook member 72 engages with the connecting pin 28 and is turned to the locked position, so that the hook member 72 and the latch member 74 are switched to the first stable state, and the latch operating member is 78 is automatically returned to the initial position shown in FIGS. Then, when the release lever 118 is pushed in while releasing the meshing load between the pawl 20 and the ratchet 18 by slightly raising the operating lever 16, the pawl 20 is moved to the second position via the release lever 76.
Is pivoted clockwise about the axis O _2, meshing with the ratchet 18 is released. Accordingly, the operating lever 14 is allowed to rotate counterclockwise about the first axis O _1, by turning operation returning the operating lever 16 to the original position, the operation lever 16 integrally with the actuating lever 14 is rotated counterclockwise and returned to the brake release position,
The parking brake is released.

Here, in the parking brake operating device 10 of this embodiment, the latch member 74 is disposed on the operating lever 16 together with the hook member 72, and the hook member 72 is mechanically positioned at the lock position by the latch member 74. As a result, the engagement state between the hook member 72 and the connecting pin 28 is favorably maintained irrespective of damage or dropping of the extension coil spring 94, and the operation lever 16 can be reliably held in the upright state.

When the latch operating member 78 is pressed to the latch switching position, the hook member 72 and the latch member 74 are switched to the second stable state, and the hook member 72 is switched to the second stable state.
Is positioned at the release position, the latch operating member 78
When the operating force is released, the non-engagement state between the hook member 72 and the connecting pin 28 is maintained, and the operation lever 16 can be easily lowered to the original position. When the operation lever 16 is raised in that state, the hook member 7
2 is engaged with the connecting pin 28 to switch from the second stable state to the first stable state, and the latch operating member 78 is automatically returned to the initial position.
The operation of the operation lever 16 and the like, including the operation of tilting and raising the operation lever 16 when the parking brake is actuated, becomes extremely easy.

In this embodiment, the hook member 72 and the latch member 74 are positioned in the first stable state and the second stable state, respectively, by the operation of the positioning mechanism including the cam 90 and the claw portion 92 and the operation of the extension coil spring 94. At the same time, in the second stable state, the hook member 72 engages with the connecting pin 28 and is turned to the lock position, so that the hook member 72 is switched to the first stable state against the urging force of the tension coil spring 94, and When the latch member 74 is rotated to the unlock position in the stable state, the latch member 74 is switched to the second stable state against the urging force of the tension coil spring 94, so that the operations of the hook member 72 and the latch member 74 are stabilized. The occurrence of abnormal noise or the like due to such rattling is prevented.

In this embodiment, since the tension coil springs 94 are provided so as to straddle the hook member 72 and the latch member 74, separate springs are provided for the members 72 and 74. The device is simple and inexpensive as compared to the case of energizing. In addition, the latch operation member 78
Accordingly, the operating force when rotating the latch member 74 to the unlock position is determined based on the urging force of the single tension coil spring 94, and therefore, the operating force can be easily adjusted.

Although the embodiment of the present invention has been described in detail with reference to the drawings, this is merely an embodiment,
The present invention can be implemented in various modified and improved aspects based on the knowledge of those skilled in the art.

[Brief description of the drawings]

FIG. 1 is a front view of a parking brake operating device according to an embodiment of the present invention.

FIG. 2 is a view showing a sector and an operation lever in the embodiment of FIG. 1;

FIG. 3 is a sectional view taken along line AA, BB, and CC in FIG. 2;
It is a figure which shows a cross section and DD cross section.

FIG. 4 is a view showing an operation lever in the embodiment of FIG. 1;

FIG. 5 is a cross-sectional view taken along line AA, BB, and CC in FIG.
It is a figure showing a section.

FIG. 6 is a view showing a hook member provided on the operation lever of FIG. 4;

FIG. 7 is a diagram showing a latch member provided on the operation lever of FIG. 4;

FIG. 8 is a diagram illustrating a state where the hook member and the latch member are positioned in a first stable state.

FIG. 9 is a diagram showing a state in which the hook member and the latch member are positioned in a second stable state.

FIG. 10 is a perspective view showing a latch operation member provided on the operation lever of FIG. 4;

11 (a) is a front view, FIG. 11 (b) is a right side view of FIG. 10 (a), and FIG. 11 (c) is a view showing a C in FIG. 10 (a).
FIG. 3C is a cross-sectional end view, and FIG. 4D is a DD cross-sectional end view in FIG.

FIG. 12 is a view showing a release lever provided on the operation lever of FIG. 4;

FIG. 13 is a diagram showing a state in which the operation lever is pulled up in the embodiment of FIG. 1;

14 is a diagram illustrating a state where the latch operating member is pressed to the latch switching position in the state of FIG. 13;

15 is a view showing a state in which the operation lever is lowered to the original position side while the operation lever is held at the brake position in the state of FIG. 14;

[Explanation of symbols]

10: parking brake operating device 12: sector 14: operating lever 16: operating lever 18: ratchet 20: pawl 28: connecting pin (engaging pin) 72: hook member 74: latch member 76: release lever (release mechanism) 82: Engagement groove 86: Projection 90: Cam (interlocking positioning means, positioning mechanism) 92: Claw (interlocking positioning means, positioning mechanism) 94: Tension coil spring (interlocking positioning means, biasing means, spring) 116: Release rod (release mechanism) 118: release knob (release mechanism, the release operating member) O _1: the first axis O _2: second axis O _3: third center axis O _4: 4th axis

Claims (3)

[Claims] 1. A sector integrally fixed to a vehicle body and provided with a ratchet along an arc shape centered on a first axis, and a sector rotatable about the first axis. And a pawl that meshes with the ratchet is rotatably provided around a second axis substantially parallel to the first axis, and a parking brake cable is connected thereto.
A brake release position where the parking brake is released,
An operating lever which is reciprocated between a brake position at which a parking brake is operated and which is held at the brake position by engagement of the ratchet with the pawl; and is rotatable about the first axis. The operating lever at the brake release position is integrally rotated to the brake position side when the pull-up operation is performed from the original position in the lying state, and the operating lever is held at the brake position. An operating lever capable of rotating to the original position side while being operated, and a release operating member disposed on the operating lever, whereby the pawl is disengaged from the ratchet in a direction in which the ratchet is disengaged. A parking brake operating device having a release mechanism for rotating the operating lever and the operating lever and the operating lever substantially parallel to the first axis. An actuating lever having an engaging pin integrally provided on one of the sides and an engaging groove engageable with the engaging pin so as to be rotatable around a third axis substantially parallel to the first axis. And at the other of the operation levers, at a predetermined release position around the third axis, the engagement pin comes out of the engagement groove, and the operation lever is moved relative to the operation lever at the brake position. When the operating lever is lifted from the home position while the operating lever is held at the brake position, the side wall of the engagement groove is allowed to rotate to the home position. A hook member that engages with the engagement pin and is rotated from the release position to the lock position, the engagement pin enters the engagement groove, and the hook member includes: A fourth axis substantially parallel to the third axis is disposed on the same member. At a predetermined lock holding position around the fourth axis, the hook member is engaged with the hook member rotated to the lock position, so that the hook member is rotated. The lock lever is mechanically positioned at the lock position to prevent the operation lever from rotating relative to the operation lever by the engagement between the engagement groove and the engagement pin, while releasing the lock from the lock holding position. A latch member that allows the hook member to rotate to the release position by being rotated to a position, and a latch member provided in association with the latch member and the hook member;
As the latch member is rotated from the lock holding position to the lock release position, the hook member is mechanically rotated from the lock position to the release position for positioning, and the hook member is Interlocking positioning means for mechanically rotating the latch member from the unlocked position to the lock holding position in accordance with the rotation from the release position to the lock position. Parking brake operating device. 2. The interlocking positioning means urges the hook member to rotate from the lock position to the release position, and rotates the latch member from the lock release position to the lock holding position. An urging means for urging the hook member to move, a first stable state in which the hook member is held in the lock position and the latch member is held in the lock holding position by the urging force of the urging means; Positioning provided over the hook member and the latch member such that the hook member is held in the release position and the latch member is positioned in a second stable state in which the latch member is held in the unlocked position. The hook member is engaged with the engagement pin in the second stable state and is rotated to the lock position, thereby opposing the urging force of the urging means. A first stable state, wherein the latch member is rotated to the unlocked position in the first stable state to switch to the second stable state against the urging force of the urging means. 2. The method according to claim 1, wherein
A parking brake operating device according to claim 1. 3. The urging means rotates the hook member from the lock position to the release position.
A single spring is disposed over the hook member and the latch member so as to rotate the latch member from the unlock position to the lock holding position. Item 3. The parking brake operating device according to item 2.