JPH0329263Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a footrest-cum-use parking brake mechanism in which the footrest also serves as the parking brake mechanism of a vehicle.

[Conventional technology]

In conventional parking brake mechanisms for vehicles, a parking brake pedal with ratchet teeth is installed on the side of the footrest, and depressing this pedal activates the parking brake. A device that releases the parking brake by operating it.
50054, etc., and there are parking brake pedals equipped with a release lever that can be released using the toe of the foot (Utility Model Publication No. 58-75154, etc.).

In addition, as another conventional example, Utility Model 56-40056
There is something disclosed in the publication No.

In the invention described in this publication, the structure for applying and releasing the parking brake is comprised of a ratchet plate fixed to the vehicle body side and having ratchet teeth, and rotatably supported on the ratchet plate. The first lever has a parking cable connected to one end thereof, and the other end has a pedal, which is pivoted coaxially with the first lever with a predetermined amount of play in the depression direction, and when the pedal is depressed more than a predetermined amount. a second lever that rotates the first lever together; a pawl that is pivotally supported on the first lever and whose tip claw engages with the ratchet teeth of the ratchet plate by spring force; and either the second lever or the pawl. The lever is provided with a release protrusion that protrudes from one side and releases the engagement between the ratchet teeth and the pawl when the second lever is depressed, making it possible to perform the braking operation and the braking release operation only by operating the pedal. This is what was done.

[Problem that the invention attempts to solve]

However, such conventional parking brake mechanisms have the following common disadvantages.

In other words, the above parking brake pedal is installed near the footrest due to the arrangement of the accelerator pedal, brake pedal, etc., and the parking brake pedal and the footrest interfere with each other in the space in which they exist. There was a lot of fear and the layout was very difficult.

[Means for solving problems]

This idea was created by focusing on these conventional problems, and it was developed by connecting a cable, etc. to a footrest pedal that is movable relative to the vehicle body so that the parking brake is activated when the footrest pedal is depressed. A stopper is provided on the engaging tooth portion to allow the braking operation by the foot rest pedal but not to allow the return operation. The stopper is connected to a release operating lever which is removably provided and is provided at a predetermined position on the vehicle body side, using a transmission mechanism so that the stopper is disengaged from the engagement tooth portion when the release operating lever is operated. The structure includes a pedal support mechanism that restricts the depression operation of the footrest pedal only when the vehicle is running in response to a signal from a vehicle speed detector.

[Effect]

In the stopped state, by depressing the footrest pedal, the parking brake is applied via the parking brake cable, and the stopper is engaged with the engagement teeth to maintain the applied state of the parking brake.
At this time, the vehicle speed detector detects the stopped state and the pedal support mechanism is in a state where the parking brake pedal is not restricted.

By operating the release operation lever while the parking brake is in effect, the stopper can be disengaged from the engagement teeth and the parking brake can be released.

Further, while the vehicle is running, the vehicle speed detector detects the running state, and the pedal support mechanism enters a state in which the operation of the footrest pedal is restricted based on the detection signal.

〔Example〕

Hereinafter, an embodiment of this invention will be described based on the drawings.

FIG. 1 is an explanatory diagram showing an embodiment of this invention.

In the figure, reference numeral 1 denotes a central bulge between the driver's seat and the passenger's seat on the vehicle floor. A footrest A is provided on the side wall 1a of this central bulge on the driver's seat side. Reference numeral 2 denotes a bracket provided extending from the side wall 1a to the floor of the driver's seat, and this bracket 2 is provided with a bearing rod 4 in an upright manner. 3 is pivoted so that it can be rotated by stepping on it. Note that this pedal 3 is biased in a direction opposite to the direction in which it is depressed by a spring (not shown).

An engaging tooth portion 5 consisting of ratchet teeth is integrally provided on the lower surface of the footrest pedal 3 in the direction of rotation of the pedal 3. A cable locking member 18 is integrally provided on this engagement tooth portion 5, and this member 18 is connected to a transmission mechanism such as an inner cable 19 of a parking brake. In addition,
The end of the outer cable 21 of the parking brake is fixed to the bracket 2.

Further, this engaging tooth portion 5 has the bracket 2
A stopper 6 is rotatably supported with a shaft 7 on the
A claw portion 6a provided at one end of the holder can be engaged with the claw portion 6a. Note that this stopper 6 has a claw portion 6a.
A spring 8 is connected to the side that does not have the claw portion 6a, and is biased in the direction in which the claw portion 6a meshes with the engagement tooth portion 5.

Further, this stopper 6 allows the footrest pedal 3 to be depressed against the engagement tooth portion 5, but does not allow a return operation.

FIG. 2 shows the release lever 9 that is pivotally supported on the upper surface of the console. This release operation lever 9 is a member having a U-shaped cross section, and is rotated about a shaft 10 by manually operating an operation piece 9a in the figure. Along with this rotation, the rotating piece 9b also rotates, and the release inner cable 11 connected to the end of the rotating piece 9b is pulled. Reference numeral 12 denotes an outer cable 12 into which the inner cable 11 is inserted, and one end thereof is fixed to a bracket 13. The release operation lever 9 and the stopper 6 are connected by the inner cable 11.
It constitutes a transmission mechanism with.

The other end of this outer cable 12 is connected to a bracket 14 located near the stopper 6.
The inner cable 11, which is fixed to and exposed from this end, is connected to the side of the stopper 6 having the claw portion 6a. Therefore, when the release operation lever 9 is operated, the inner cable 1
1 is pulled and the claw portion 6a of the stopper 6 engages the engaging tooth portion 5.
to separate from

In the figure, 15 is a pedal support plate, for example,
It is moved up and down via a lifting rod 16 by means such as a hydraulic actuator.

The pedal support plate 15 is raised and lowered by determining a signal output from a vehicle speed detector separately installed in the vehicle, and when the vehicle is stopped at zero speed, the support plate 15 is lowered. This enables the footrest pedal 3 to be depressed;
You can apply the parking brake. Further, when the vehicle is running at a speed other than zero, the support plate 15 is raised to support the pedal 3 so that it does not move due to depression.

The pedal support plate 15 constitutes a pedal support function that restricts the depression operation of the footrest pedal 3.

Furthermore, a protrusion 17 is provided at a predetermined position on the bracket 2 to prevent overstroke of the pedal 3.

FIG. 3 is an explanatory diagram showing another embodiment of this invention.

In this embodiment, a long hole 18a is formed in the cable locking member 18 provided integrally with the engaging tooth portion 5, and a guide rod 20 provided integrally with the vehicle body side can freely slide into this long hole 18a. is fitted. Therefore, overstroke of the footrest pedal 3 can be prevented.

In addition to the overstroke prevention function of the cable locking member 19, the bracket 2 is provided with a rising piece 2a to reliably prevent overstroke caused by stepping on the cable. The pedal support mechanism for raising and lowering the pedal support plate 15 is the same as that in the previous embodiment.

As explained above, in this invention, when the vehicle is stopped, the vehicle speed detector detects the vehicle speed at approximately 0.
(effectively stopped state) and outputs a signal,
A means such as a hydraulic actuator is operated to lower the pedal support plate 15. Further, when the vehicle speed detector detects the running state, the output signal is detected and the support plate 15 is raised to prevent the footrest pedal 3 from operating. Therefore, even if the user puts his or her foot on the footrest pedal 3 while driving, the parking brake will not be applied. Furthermore, when the vehicle is stopped, the parking brake can be applied by depressing this footrest pedal 3, which is used as a pedal for operating the parking brake. Note that there is no problem in placing your foot on the pedal 3 while the parking brake is in effect.

Further, in the above embodiment according to the invention, by operating the release operation lever 9, the claw portion 6a of the stopper 6 is pulled via the inner cable 11, and the claw portion 6a is moved to the engagement tooth portion 5. It can be removed from.

Note that in both of the above embodiments, an inner cable and an outer cable are used as the transmission mechanism that connects the stopper and the release operation lever.
The connection is not limited to this, but it is also possible to connect with a rod.

In addition to being provided on the console portion, the release operation lever may also be provided on an instrument panel or the like.

Furthermore, in the above embodiment, the bracket 2
However, it is of course possible to omit this and install the footrest pedal directly on the floor.

Furthermore, in the above embodiment, a U-shaped member is used as the release operation lever, but the structure is not limited to this as long as it has a release function, and various release means such as pushing and pulling a knob can be used. is planned.

Next, in the above embodiment, the inner cable of the parking brake is fixed to the engaging teeth, but a design change may be made in which it is fixed directly to the footrest pedal.

[Effect of idea]

As is clear from the above explanation, in this invention, the pedal of the footrest can also be used as an actuation pedal for applying the parking brake, so that a separate actuation pedal for the parking brake can be used. There is no need for installation, and there is no adverse effect on the installation space and operation space for accelerator pedals, brake pedals, etc. used for normal driving. That is, there is an effect that the driver can drive without worrying about the parking brake actuation pedal.

Further, by making it possible to depress the footrest pedal only when the vehicle is stopped, it is possible to prevent an accident in which the parking brake is applied erroneously while the vehicle is running.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing one embodiment of the parking brake mechanism for both footrest and parking brake mechanism according to this invention, Fig. 2 is an explanatory diagram showing the same release operation lever, and Fig. 3 is an explanatory diagram showing another embodiment according to this invention. It is an explanatory diagram. A... Foot rest, 3... Foot rest pedal, 5... Engaging teeth, 6... Stopper, 9... Release operation lever, 11... Inner cable (transmission mechanism), 12... Outer cable, 15... ...Pedal support plate (pedal support mechanism), 19...Parking brake inner cable, 21...Parking brake outer cable.

Claims (1)

[Scope of utility model registration request] A footrest pedal movable relative to the vehicle body is connected to the parking brake via a cable or the like so that the parking brake is activated when the footrest pedal is depressed, and an engaging tooth portion is provided that interlocks with the footrest pedal. and a stopper is releasably engaged with the engaging portion, and a spring is connected to the stopper to bias the stopper itself to the engaged position;
Further, a release operation lever provided at a predetermined position on the vehicle body side and the stopper are connected by a transmission mechanism so that the stopper is disengaged from the engagement teeth when the release operation lever is operated, and a transmission mechanism is used to connect the stopper with the release operation lever provided at a predetermined position on the vehicle body side. A parking brake mechanism for both a footrest and a parking brake, characterized in that a pedal support mechanism is provided that restricts the depression operation of the footrest pedal only when the vehicle is traveling in response to a signal.