JPH0622613Y2 - Parking brake operating device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a parking brake operating device for an automobile,
In particular, the present invention relates to a parking brake operating device in which the height of the operating lever is reduced when the parking brake is in the operating state.

As a parking brake operating device for a conventional vehicle, (a) a pole that is rotatably arranged around one axis and that is engaged with a sector that is fixed in position is rotatable about an axis parallel to that axis. An operating member that is attached and that locks the brake cable; (b) an operating lever that is rotatably provided around the one axis or an axis parallel to the one axis; and (c) push it into the tip of the operating lever. A release knob that is operably arranged and that is always kept in a protruding state by the biasing force of the return spring, and (d)
One end is fixed to the release knob, and a release rod for transmitting the pushing operation of the release knob to the pole side, and (e) when the operation lever is rotated from the original position in the inactive state of the parking brake, The action member is rotated around the one axis together with the operation lever, but when the action member of the parking brake is in operation, the operation lever is rotated from the original position without rotating the action member. Some of them are provided with an engagement mechanism that allows them to rotate toward a position. In such a parking brake operating device, the operation lever is rotated from the original position to rotate the acting member around the one axis, thereby tightening the brake cable and applying the parking brake. While the operating state of the parking brake is maintained by the engagement of the pawl and the sector, the operating lever is allowed to rotate toward the original position while maintaining the operating state of the parking brake. In the operating state of the parking brake, the engagement of the pole and the sector is released via the release rod by pushing the release knob while the operation lever is held at the operation position, So that the action member rotates together with the operation lever toward the original position. The parking brake is placed in the non-activated condition by provoking. 56-
18248, JP-A-61-218461, and JP-A-61-179069 are examples of such a device. According to such a type of parking brake operating device, the parking brake is operated. After the operation lever is raised to operate, it can be rotated toward the original position while maintaining the operation state of the parking brake, so that the height of the operation lever when the parking brake is applied can be lowered. Therefore, there is an advantage that there is no danger that it will be a hindrance when moving between the driver's seat and the passenger seat, and the operating state of the parking brake will not be accidentally released.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the conventional parking brake operating device, one end of the pole is engaged with the sector, and the other end of the pole is connected to or abuts the release rod. In addition, the engagement with the sector is usually downward, that is, the one end is in the lower position and the other end is in the upper position. On the other hand, when the operating lever is raised when the parking brake is applied, the pawl generally comes into engagement at a relatively high portion of the sector. Therefore, when the parking brake is applied, the pole is held at a relatively high position, and the other end projects further upward, and even if the operation lever is rotated toward the original position in that state, Due to the existence of the pole, it was not always possible to sufficiently lower the height of the member for covering the pole such as the operating lever.

Incidentally, such a parking brake operating device is generally arranged in a central portion of an automobile, that is, a tunnel portion of the floor. However, the above problem is relatively high in a floor tunnel such as a four-wheel drive vehicle or a rear wheel drive vehicle. It happened about things, and the operation lever sometimes protruded from the upper surface of the seat in the driver's seat and the passenger seat.

Further, the above-mentioned Japanese Utility Model Application Laid-Open No. 56-18248 and Japanese Patent Laid-Open No. Sho 61-61.
In the device described in Japanese Patent No. 218461, when the operation lever is rotated toward the original position while maintaining the operation state of the parking brake, the release rod and the action member arranged on the operation lever are arranged. Since it will be completely separated from the installed pole, it will be caused by rattling of the release rod and rotation around the axis when the release lever is pushed to operate the release lever to release the parking brake. The contact with the pole, and the contact with the sector may disengage due to the rotation resistance of the pole due to meshing with the sector, which makes the release operation uncertain and prevents it. In order to do so, there is a problem that a positioning means and a guiding means for positioning the release rod are required.

In the device disclosed in Japanese Utility Model Laid-Open No. 56-18248, the height of the operating lever is relatively low when the operating lever is rotated to the original position while the parking brake is operating. This is because the dimension from the center to the other end, that is, the contact portion of the release rod is small.If the dimension from the contact portion of the release rod is reduced in this way, the release knob is pushed in to release the engagement between the pole and the sector. In doing so, a relatively large operating force is required.

The present invention was made in the background of the above circumstances,
The purpose of this is to further reduce the height of the operating device when the parking brake is applied, and to reliably release the engagement between the pole and the sector with a small pushing operation force.

Means for Solving the Problems In order to achieve the above object, the present invention provides (a) an operating member, (b) an operating lever, (c) a release knob, (d) a release rod, and (e) a member. In a parking brake operating device including a coupling mechanism, the action member is formed in a longitudinal shape and is rotatable about an axis that is the same as or parallel to the rotation axis of the pawl on the base end side thereof. Alternatively, the operating lever is held at the operating position while being disposed on a pole and connected to the other end of the release rod through an elongated hole provided in the longitudinal direction, while the parking brake is operating. In this state, the elongated hole crosses the movement direction of the release rod associated with the pushing operation of the release knob, and the release knob is pushed into contact with the pole. While the pole is rotated in the direction of releasing the meshing with the sector, when the operation lever is rotated from the operation position toward the original position while maintaining the operation state of the parking brake. , The rotation of the operating lever is allowed without being rotated by rotating the operating lever in a direction opposite to the direction in which it abuts on the pawl by engaging with the release rod that rotates with the operating lever. Further, in the state after the rotation thereof, the movement direction of the release rod accompanying the pushing operation of the release knob and the elongated hole are substantially parallel to each other, and the pole is turned even if the release knob is pushed. It is characterized by having a release lever that does not have.

In other words, according to the present invention, the release rod which has been conventionally connected or abutted to the pole is connected to the action member or the long hole of the release lever rotatably disposed on the pole. By rotating the pole via the release lever, the engagement between the pole and the sector is released. With this configuration, the portion of the pole opposite to the side that meshes with the sector, that is, the portion that projects in the height direction when the parking brake is applied, does not require a portion that is conventionally connected to or brought into contact with the release rod.

On the other hand, when the operation lever is rotated to apply the parking brake, the release lever projects in the height direction like a conventional pole, but is operated while maintaining the operation state of the parking brake. When the lever is rotated toward the original position, the lever is rotated so as to be in a posture substantially parallel to the release rod with the rotation of the operation lever. For this reason, the height of the entire operating device in that state is determined by the position and the amount of protrusion of the pole, but as described above, the portion on the side opposite to the side that engages with the sector of the pole is unnecessary, and thus the protrusion in the height direction is not necessary. The amount can be made sufficiently small, and the height of the entire operation device when the operation lever is rotated toward the original position can be reduced.

Also, when releasing the operating state of the parking brake, the turning force that acts on the pole by pushing the release knob is the size from the center of rotation of the release lever to the connection part between the release lever and the release rod, and the rotation of the pole. It depends on the size from the center to the release lever abutment, and if the release lever is made long, a large turning force can be applied to the pole with a relatively small pushing operation force, and the operating state of the parking brake can be changed. It can be released easily.

Further, in the present invention, since the release rod is connected to the elongated hole of the release lever, the engagement relationship between the two is not impaired, and the release lever is disposed on the pole or the action member holding the pole. Since the pawl or the acting member is rotated relative to the pawl or the acting member, the engagement relationship between the release lever and the pawl is not damaged. Therefore, when the release knob is pushed in, the pole can be reliably rotated and the engagement between the pole and the sector can be released.

Further, the parking brake operating device of the present invention rotates the pole even if the release knob of the operating lever is pushed in while the operating lever is rotated toward the original position while maintaining the operation state of the parking brake. Since it cannot be moved, there is no risk that the operating state of the parking brake will be accidentally released. When the operation lever is turned toward the original position when the parking brake is applied in this way, the release knob does not necessarily have to protrude from the tip of the operation lever, and may be pulled into the operation lever. It does not matter even if it becomes.

Embodiment Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

In FIG. 1, reference numeral 10 denotes a sector which is fixedly provided in a floor tunnel section of an automobile (not shown) by a pair of legs 12 and 14, and this sector 10 has a position as clearly shown in FIG. A large number of meshing teeth 16 are formed in an arc shape around the pin 18. The pin 18 forms one axis, and the operation lever 20 and the pole housing 22 are arranged so as to be rotatable around the axis of the pin 18, respectively.

The distal end portion 24 of the operating lever 20 has a cylindrical shape and is provided with a resin grip 25, while the proximal end portion 26 is
The III-III cross section and the IV-IV cross section of FIG.
As is clear from FIG. 4, it is formed to have a pair of side portions 28 and has a substantially inverted U-shaped cross section, and the base end portion 26 is in a posture of straddling the sector 10 and the pole housing 22. It is attached to the pin 18.
A single pin 30 is attached to the base end portion 26 in parallel with the pin 18 across the pair of side portions 28.
The pin 30 is inserted through engagement holes 32 and 34 formed in the sector 10 and the pole housing 22, respectively. The engaging holes 32 and 34 each have an arc shape centered on the pin 18, and the operating lever 20 has an angular range in which the pin 30 abuts on both ends of the engaging hole 32 formed in the sector 10. In this embodiment, as shown in FIG. 1, from the substantially horizontal original position where the pin 30 is brought into contact with one end of the engaging hole 32, 6 as shown in Figure 4
Rotation operation is allowed up to the maximum stroke end that is raised by 7 °. The engagement hole 34 formed in the pole housing 22 is formed over substantially the same angle range as the engagement hole 32, and the angle range, that is, about 47 degrees.
In the angle range of °, relative rotation between the operation lever 20 and the pole housing 22 is allowed, but when the angle range is exceeded, the pole housing 22 is rotated together with the operation lever 20. The pin 30 and the engaging hole 34 form an engaging mechanism in this embodiment. Further, a release knob 38, which is biased by a spring 36 as a return spring in a direction projecting from the tip thereof, is arranged at the tip end portion 24 so as to be able to be pushed against the biasing force of the spring 36. A release rod 40 has one end fixed to the release knob 38.

On the other hand, the pole housing 22 constitutes a working member, and as is apparent from FIG. 3, it is composed of a pair of side plates 42 arranged on both sides of the sector 10. A brake cable 4 connected to a parking brake (not shown) is provided at one end of the pole housing 22.
4 is rotatably attached around a pin 46 provided in parallel with the pin 18, and a pole 48 and a release lever 50 are attached to the other end portion around a pin 52 which is also parallel to the pin 18. It is rotatably attached. The pawl 48 is meshed with the meshing teeth 16 formed in the sector 10 to prevent the pawl housing 22 from rotating in the counterclockwise direction, and is twisted between the pawl 48 and the release lever 50. The projection 56 is urged by the coil spring 54 in the direction of coming into contact with the release lever 50, so that the projection 56 is always connected integrally with the release lever 50. FIG. 5 is a perspective view showing a state in which the spring 54 is hooked between the pawl 48 and the release lever 50. The pin 52 corresponds to the rotating shaft of the pole 48.

As is apparent from FIG. 4, the release lever 50 is composed of a pair of plate members 58 each having a longitudinal shape expanded so as to straddle the pole 48 only at a base end side portion attached to the pin 52. There is. Further, the release lever 50 is formed with an elongated hole 60 along its longitudinal direction,
A release rod 40 having one end fixed with the release knob 38 is connected to the other end through a projection 62.
Thereby, the pin 52 of the release lever 50 is
The rotational position of the surroundings is defined by the release knob 38 which is always kept in a protruding state by the spring 36. Normally, that is, when the release knob 38 is pushed in as shown in FIGS. When the release lever 50 is oriented in a direction intersecting the moving direction of the release rod 40, the release knob 38 is rotated around the pin 52 by the pushing operation of the release knob 38.

Here, as shown in FIGS. 1 and 2, the engagement hole 34 formed in the pole housing 22 is pinned by the pole housing 22 when the operation lever 20 is held in the original position. When positioned at the left end of the rotation direction of the shaft 18, the pawl 48 integrally connected to the release lever 50 by the spring 54 meshes with the lowest portion of the meshing teeth 16 of the sector 10. It is provided in. The angular position of the release lever 50 in this state is such that when the release knob 38 is in the protruding state, the projection 56 abuts on the release lever 50 by the urging force of the spring 54 or a slight gap is formed between them. Is engaged with the meshing tooth 16, but when the release knob 38 is pushed in, the pole 48 and the pin 52 are rotated clockwise to release the meshing between the pole 48 and the meshing tooth 16. It is set. This means that the operating lever 20
As long as the relative positional relationship between the pole housing 22 and the pole housing 22 does not change, that is, the pin 18 of both ends of the engagement hole 34.
As long as the pin 30 is held in a state in which the pin 30 is brought into contact with the end portion in the clockwise direction around the center (hereinafter, referred to as a functional state), the position where the operation lever 20 is from the original position to the maximum stroke end is reached. It is the same even when it is rotated.

Further, the tension of the brake cable 44 locked to the pole housing 22 causes the parking brake when the operation lever 20 is held in the original position while the operation lever 20 and the pole housing 22 are held in the functional state. However, the operation lever 20 is pivoted from the original position in the clockwise direction of the pin 18 (hereinafter, referred to as an operation direction) and tightened while the function state is maintained, so that the operation lever 20 is operated as described above. The parking brake is adjusted before the maximum stroke end is reached. In this way, the position of the operation lever 20 when the parking brake is rotated from the original position until the parking brake becomes the operating state is the operation position.

The moment applied between the pawl 48 and the release lever 50 by the spring 54 is smaller than the moment applied by the spring 36 to the release lever 50, and the operating lever 20 is rotated to the above-mentioned operating position. , The release knob 38 is in the projecting state, in other words, the pawl 48 and the meshing tooth 16 are meshed with each other to prevent the pole housing 22 from rotating in the counterclockwise direction, and the parking lever is maintained in the operating state. Is rotated from the operation position to the original position in the direction opposite to the operation direction, the release lever 50 is rotated counterclockwise of the pin 52 against the urging force of the spring 54, and the operation is performed. Lever 2
Allow 0 to return to the home position. The long hole 60
Is determined so that the operation lever 20 can rotate from the operation position to the original position while being engaged with the projection 62 of the release rod 40. FIG. 6 shows a state in which the operation lever 20 is rotated up to the maximum stroke end when the operation amount of the operation lever 20 is the largest, that is, when the operation position reaches the maximum stroke end. The figure is a diagram showing a state in which the operation lever 20 is returned to the original position while maintaining the operation state of the parking brake from the state of FIG.

Further, in the state where the operation lever 20 is returned to the original position while maintaining the operation state of the parking brake in this way, the release lever 50 varies depending on the angle of the operation position, but as shown in FIG. Is in a direction substantially parallel to the release rod 40, and the release lever 50 hardly rotates even if the release knob 38 is pushed.
Alternatively, even if the pawl 48 rotates, the pawl 48 is not rotated by contacting the protrusion 56 of the pawl 48 with a slight amount. The connection relationship between the release lever 50 and the release rod 40 and the engagement relationship between the release lever 50 and the pawl 48 are determined as described above.

Next, the operation of this embodiment will be described.

First, the parking brake is inactive, that is, the first
As shown in FIG. 2 and FIG. 2, when the operating lever 20 and the pole housing 22 are in the functional state and the operating lever 20 is held in the original position, when the parking brake is applied, The operating lever 20 is pulled up in the operating direction as it is or while pressing the release knob 38. At this time, the pin 30 of the pole housing 22 is brought into contact with the right end portion of the engaging hole 34, so that the pole housing 22 is rotated integrally with the operating lever 20, that is, while maintaining the functional state in the operating direction. Further, the pawl 48 held in the pawl housing 22 is in a state of disengagement with the engaging teeth 16 when the release knob 38 is pushed, and when the release knob 38 is not pushed, the spring 48 of the spring 54 is released. While moving over the plurality of meshing teeth 16 against the biasing force, they are moved along the meshing teeth 16.

When the pole housing 22 is rotated in this way, the brake cable 44 locked to the pole housing 22 is tightened, and the operation lever 20 is rotated to the operation position so that the parking brake is operated. To be In this state, the release knob 3
8 is pushed and the operating lever 20 is pulled up, the pushing operation of the release knob 38 is released, and when the operating lever 20 is pulled up without pushing the release knob 38, the pole 48 remains unchanged. Is meshed with the meshing teeth 16 so that the pole housing 2
Rotation in the counterclockwise direction around the second pin 18 is blocked, and the parking brake is maintained in the operating state even if the operating force on the operating lever 20 is released.

After that, when the operation lever 20 is operated to rotate from the above-mentioned operation position toward the original position, the pole housing 22 causes the pole 4 to move.
Since the counterclockwise rotation is prevented by the meshing between the gear 8 and the meshing tooth 16, only the operation lever 20 is rotated to the original position while maintaining the operation state of the parking brake. At this time, the release lever 50 connected to the release rod 40 is rotated counterclockwise around the pin 52 against the biasing force of the spring 54 to maintain the meshing between the pawl 48 and the meshing tooth 16. Meanwhile, the operation lever 20 is allowed to rotate to the original position. Further, when the operation lever 20 is returned to the original position in this way, the release lever 50 becomes substantially parallel to the release rod 40, so that even if the release knob 38 is pushed in, the release lever 50 is almost rotated. Without contacting the protrusion 56 of the pole 48 and the tooth 48 that meshes with the pole 48.
The engagement state with the parking brake is maintained without releasing the meshing with.

On the other hand, in order to release the parking brake, after rotating the operation lever 20 to the operation position, the release knob 38 is pushed and the release lever 50 and the pole 48 are rotated clockwise around the pin 52. Thus, the meshing between the pawl 48 and the meshing tooth 16 is released, and then the operation lever 20 may be rotated around the pin 18 to the original position. At this time, the tension of the brake cable 44 causes a force to rotate in the counterclockwise direction on the pole housing 22, and the contact lever between the side portion 28 and the side plate 42 imparts a relative rotation resistance from the operation lever 20. Therefore, the pole housing 22
Is rotated around the pin 18 integrally with the operation lever 20.

Here, in the parking brake operating device of the present embodiment, the release rod 40, which has been conventionally connected or abutted to the pole 48, is replaced by the pole 48.
Is connected to a release lever 50 disposed on the pole housing 22 so as to be rotatable around the same pin 52 as above, and the pole 48 is rotated via the release lever 50, so that the pole 48 and the meshing tooth 16 It is designed to release the mesh of. Therefore, a portion of the pole 48 opposite to the side that meshes with the sector 10, that is, a portion that protrudes upward when the parking brake is applied, does not require a portion that is conventionally connected to or brought into contact with the release rod 48.

On the other hand, when the operating lever 20 is raised to apply the parking brake, the release lever 50 projects upward like a conventional pole, but the operating lever is maintained while maintaining the operating state of the parking brake. When the 20 is rotated toward the original position, it is rotated around the pin 52 in accordance with the rotation of the operation lever 20, so that the elongated hole 60 is substantially parallel to the release rod 40. It becomes a horizontal posture. For this reason, the height of the entire operating device in that state is determined by the height position of the pole 48 and the amount of upward projection.
Since the portion on the side opposite to the side that engages with the sector 10 is unnecessary, the amount of upward protrusion can be made sufficiently small, and the operation lever 2
The height of the entire operating device can be reduced when 0 is rotated toward the original position.

In addition, since the turning force that acts on the pole 48 by pushing the release knob 38 when releasing the operation state of the parking brake is determined by the dimension from the pin 52 to the connecting portion between the release lever 50 and the release rod 40, the release lever. If the dimension of 50 is made long, a large turning force can be applied to the pole 48 with a relatively small pushing operation force, and the operating state of the parking brake can be easily released.

Further, since the release rod 40 is connected to the elongated hole 60 of the release lever 50 via the projection 62, even if the operation lever 20 is relatively rotated with respect to the pole housing 22, the release rod 40 and the release lever 50 are rotated. The engagement relationship between the release lever 50 and the pole 48 is not impaired, and the release lever 50 is disposed in the pole housing 22 so as to be rotatable around the pin 52 together with the pole 48. Is not damaged. Therefore, when the release knob 38 is pushed in, the pawl 48 can be reliably rotated to release the engagement between the pawl 48 and the sector 10.

On the other hand, the conventional parking brake operating device uses the pawl in which the pawl 48 and the release lever 50 of the present embodiment are integrally formed. Therefore, for example, as shown in FIG. When the is operated to the operation position, the portion corresponding to the release lever 50 is largely projected upward and the operation lever 20
Release lever 50
And the operation lever 20 interferes with each other,
The operating lever 20 cannot be returned to its original position. Moreover, in order to return the operation lever 20 to the original position,
In order to avoid interference with the portion corresponding to the release lever 50, the height dimension of the operating lever 20 needs to be increased in advance, and the height of the operating lever 20 cannot be finally lowered. is there.

On the other hand, the parking brake operating device of the present embodiment,
Even if the release knob 38 of the operation lever 20 is pushed in the state where the operation lever 20 is rotated toward the original position while maintaining the operation state of the parking brake, the pawl 48 is rotated and the engagement tooth 16 is formed. Since it is not possible to release the meshing of the parking brake, there is no fear that the operating state of the parking brake will be accidentally released, and high safety can be obtained.

Next, another embodiment of the present invention will be described. The following embodiments relate to the shapes and mounting means of the pole, the release lever and the pole housing, and the other parts have the same configurations as the above-mentioned embodiments, so only the different parts will be explained and common. Description of parts is omitted.

First, the release lever 70 shown in FIGS. 8 and 9 is formed by bending a single plate material.
Is attached to the pin 52 so as to be rotatable relative to the pole 52, and the bent portion 74 is engaged with the pawl 72 to release the meshing between the pawl 72 and the meshing tooth 16, that is, the eighth direction. The pin 52 can be integrally rotated in the clockwise direction in the figure.
The elongated hole 76 has exactly the same shape as the elongated hole 60 of the above embodiment and has the same function.

The release lever 80 shown in FIGS. 10 and 11 is parallel to the pin 52 because the arcuate groove 82 is engaged with the end edge 86 of the pole housing 84 composed of a pair of side plates. Further, it is rotatably attached in the vicinity of the pin 52 along an arc having a center of rotation, and by engaging with the projection 90 of the pawl 88, the pawl 88 and the meshing tooth 16 are meshed with each other. It can be integrally rotated in the releasing direction. The slot 92 has the same shape as the slots 60 and 76 and has the same function.

Although the embodiments of the present invention have been described in detail with reference to the drawings, the present invention can be implemented in other modes.

For example, in the above-described embodiment, the operating lever 20 is arranged so as to be rotatable about the pin 18 which is the same as the pole housing 22, but the pole is provided so as to be relatively rotatable about another axis which is parallel to the pin 18 and whose position is different. It can be installed in the housing 22,
It is also possible to dispose it in the sector 10 or other position-fixing member so as to be rotatable about an axis parallel to the pin 18.

Further, although the engaging mechanism is constituted by the pin 30 and the engaging hole 34 in the above-mentioned embodiment, the pin 30 is fixed to the pole housing 22 and the engaging hole 34 is formed in the operating lever 20, or the engaging hole 34 is engaged. Various engaging mechanisms can be adopted, such as opening the left end portion of the hole 34 in FIG. 2 or the like.

Further, although the pawl 48 of the above embodiment is adapted to be engaged with the engaging teeth 16 by the springs 36 and 54, the pawl 48 may be engaged with the engaging teeth 16 by the gravity acting on the pawl 48 itself without providing the spring 54. , The pole housing 2 instead of the spring 54
It is also possible to stretch a tension coil spring or the like between the two.

Although the release lever 50 is attached to the pin 52 in the above-described embodiment, it may be attached to the pole 48 or the pole housing 22 so as to be rotatable about an axis parallel to the pin 52.

Further, in the above embodiment, the operation lever 20 is returned to the original position while maintaining the operation state of the parking brake. For example, when the operation lever 20 is arranged on the pole housing 22 so as to be rotatable relative to each other. For example, the operation lever 20 does not necessarily have to be configured to be completely returned to the original position.

Further, although the meshing teeth 16 are provided on the side portions of the sector 10 in the above-mentioned embodiment, even if the meshing teeth 16 are provided on the upper portion of the sector 10, it is possible to divide the pole 48 and the release lever 50 into two parts. The effect of the invention can be sufficiently obtained.

Although not illustrated one by one, the present invention can be implemented in various modified and improved modes based on the knowledge of those skilled in the art.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view of a parking brake operating device according to an embodiment of the present invention. Figure 2 shows the first
It is sectional drawing which shows the principal part of the apparatus of the figure. FIG. 3 is a sectional view taken along the line III-III in FIG. FIG. 4 is in FIG.
It is a IV-IV sectional view. FIG. 5 is a perspective view showing the engagement relationship between the release lever and the pole in the apparatus of FIG. FIG. 6 is a sectional view showing a state in which the operation lever is pulled up in the apparatus shown in FIG. FIG. 7 is a cross-sectional view showing a state in which the operating lever is returned to the original position while maintaining the operation state of the parking brake in the apparatus of FIG. FIG. 8 is a view showing a release lever and a pole according to another embodiment of the present invention. FIG. 9 is a view from the right side of FIG. FIG. 10 is a view showing a release lever and a pole according to still another embodiment of the present invention.
FIG. 11 is a sectional view taken along line XI-XI in FIG. 10: Sector, 18: Pin (uniaxial) 20: Operation lever 22, 84: Pole housing (action member) 30: Pin, 34: Engagement hole 38: Release knob, 40: Release rod 44: Brake cable 48, 72, 88 : Pole 50, 70, 80: Release lever 52: Pin (rotating shaft), 54: Spring 36: Spring (return spring), 60, 7
6,92: Slot

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Creator Toshihiko Tanaka 1 Toyota-cho, Toyota-shi, Aichi Toyota Motor Corporation (56) Reference JP-A-61-218461 (JP, A) (JP, U)

Claims (2)

[Scope of utility model registration request] 1. A pole, which is arranged so as to be rotatable about one axis and which is engaged with a sector provided in a fixed position, is attached so as to be rotatable about an axis parallel to the one axis, and a brake cable is locked. Acting member, an operation lever rotatably provided around the one axis or an axis parallel to the one axis, a push-operable operation member disposed at the tip of the operation lever, and an urging force of a return spring. Release lever that is always held in a protruding state by the release lever, a release rod that has one end fixed to the release knob and that transmits the pushing operation of the release knob to the pole side, and the operating lever is in the original position when the parking brake is inactive. The operating member is rotated around the one axis together with the operation lever when being rotated from the parking brake. An engagement mechanism that allows the operation lever to rotate from the operation position rotated from the original position toward the original position without rotating the operation member in the operation state of G. In the parking brake operating device according to the present invention, the parking brake operating device has a longitudinal shape, and is disposed on the acting member or the pole so that the base end side thereof is rotatable about an axis that is the same as or parallel to the axis of rotation of the pole. In addition, while being connected to the other end of the release rod through an elongated hole provided along the longitudinal direction, the operating lever is held in the operating position in the operating state of the parking brake. , The elongated hole is in a posture that intersects with the moving direction of the release rod associated with the pushing operation of the release knob, and the push knob is operated by pushing the release knob. The operating lever is rotated from the operating position toward the original position while maintaining the operation state of the parking brake while being abutted against When it is made to rotate, it is rotated in the direction opposite to the direction in which it abuts on the pawl due to the engagement with the release rod that rotates with the control lever, so that the pawl is rotated without rotating the pawl. In a state in which the rotation is allowed and in the state after the rotation, the moving direction of the release rod accompanying the pushing operation of the release knob and the elongated hole are substantially parallel to each other, and even if the release knob is pushed, the pole is moved. A parking brake operating device comprising a release lever that does not rotate. 2. The release lever is arranged on the acting member so as to be rotatable relative to the pawl about the same axis as the pivot shaft of the pawl, and the pawl is always driven by a biasing force of a spring. When the operating lever is rotated from the operating position toward the original position in the operating state of the parking brake, the operating lever resists the urging force of the spring. 2. A device which can be rotated relative to a pole.
Parking brake operating device described in.