JP2016159711A - Foot-operated parking brake device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foot-operated parking brake device capable of preventing releasing of the operated state of a parking brake when a driver leaves.SOLUTION: A foot-operated parking brake device includes ignition detection means 3 for detecting conduction of an ignition 31, a push switch 2 for detecting the operation of a parking brake, a holding mechanism for holding the stepping-down attitude of a brake pedal 11, an assist mechanism operated to weaken the holding of the holding mechanism, thereby enabling releasing of the stepping-down attitude of the brake pedal 11, and a control mechanism 4 for receiving a detection signal from the ignition detection means 3 and the push switch 2 to transmit a control signal to the assist mechanism. The assist mechanism is actuated when the push switch 2 detects the operation of the parking brake and the ignition detection means 3 detects the conduction of the ignition 31, and weakens the holding of the holding mechanism to enable releasing of the stepping-down attitude of the brake pedal 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a foot-operated parking brake device that cannot release an operating state of a parking brake unless an ignition is in a conductive state.

  The foot-operated parking brake device is an easy-to-operate parking brake device that activates the parking brake when you depress the brake pedal once with your foot and releases the operating state of the parking brake when you depress the brake pedal with your foot again. . However, because it is easy to operate, especially when it is only necessary to step on the foot, even if the parking brake must be maintained, the driver accidentally steps on the brake pedal or a third party brakes accidentally. There was a problem that the parking brake was suddenly released when the pedal was depressed. For this reason, a foot-operated parking brake device that cannot release the operating state has been proposed with some state as a key (Patent Document 1).

  Patent Document 1 includes a tire rotation detection unit that detects a rotation state of a tire, an operation state detection unit that detects an operation state of a parking brake (parking brake mechanism), and an operation unit that restricts the operation state of the parking brake. A stepping type parking brake device is disclosed (Patent Document 1, [Claim 1] and others). As a result, when the vehicle starts to move after the parking brake is activated, the parking brake is not released by the operating means even if the driver rushes and depresses the brake pedal, and conversely, the braking force is further increased by the depression. (Patent Document 1 [0006]). This can be said to have a function of preventing an erroneous operation in an emergency.

JP 09-272412 A

  In recent years, delivery services for delivering goods at supermarkets and convenience stores are starting, and automobiles without doors are sometimes used as simple delivery means. Since it is an automobile even if it is simple, for example, a stepping type parking brake device is provided. However, since the automobile has no door, there is a problem that a third party can easily operate the brake pedal. Specifically, in the worst case, when a driver leaves the vehicle with the parking brake activated, the parking brake is activated by a third party and the vehicle moves without permission. It is a serious problem that causes traffic accidents.

  In the foot-operated parking brake device disclosed in Patent Document 1, when the parking brake is in an operating state and the operating state is not so sweet that the vehicle starts to move, the operating state of the parking brake is not released even if the brake pedal is stepped on. Further, the braking force is increased, and it is impossible to prevent the brake pedal from being released due to mischief during the stop state. Therefore, in order to provide a foot-operated parking brake device in which the operating state of the parking brake is not released due to mischief when the driver leaves in a car without a door that is becoming popular.

  What was developed as a result of the study was an ignition detection means for detecting ignition continuity and the operation of the parking brake in a foot-operated parking brake device in which the operation and release of the parking brake are switched when the driver depresses the brake pedal with his foot. A brake detection means for detecting the brake pedal, a holding mechanism for holding the depression posture of the brake pedal, an assist mechanism for releasing the brake pedal depression posture by weakening the holding by the holding mechanism by operation, an ignition detection means and a brake detection And a control mechanism that receives a detection signal from the means and transmits a control signal to the assist mechanism. The assist mechanism is configured such that the brake detection means does not detect the operation of the parking brake, or the brake detection means performs the operation of the parking brake. Detect and Igni If the ignition detection means does not detect ignition continuity, it is inactive and does not weaken the holding by the holding mechanism, so the brake pedal depressing posture remains unreleasable, the brake detection means detects the operation of the parking brake, and the ignition The foot-operated parking brake device is activated when the detecting means detects ignition conduction, weakens the holding by the holding mechanism, and enables the brake pedal to be released.

  The ignition detection means detects electrical continuity of the ignition due to rotation of the key cylinder or depression of the start button. If the ignition continuity can be detected, the detection target may not be the ignition. For example, the electrical path leading to the ignition or the continuity of the electric circuit linked to the ignition continuity may be detected. The brake detection means electrically detects the operation of the parking brake as a mechanical change by a contact or non-contact sensor. The holding mechanism holds the depression posture (rotation angle) of the depressed brake pedal, and prevents the brake pedal from returning due to the depression again by a mechanical or electrical holding means. The assist mechanism weakens or disables the function of the holding mechanism by the holding means, and induces the return of the brake pedal by the depressing again by the mechanical or electrical inducing means.

  In the foot-operated parking brake device of the present invention, (condition 1) when the brake detecting means does not detect the operation of the parking brake, or (condition 2) the brake detecting means detects the operation of the parking brake, and the ignition detecting means is the ignition If the continuity is not detected, the assist mechanism is deactivated and the retention by the retention mechanism is not weakened, and even if the brake pedal is depressed again, the depressed position cannot be released. (Condition 3) The brake detection means detects the operation of the parking brake. When the ignition detection means detects ignition continuity, the assist mechanism is activated to weaken the holding by the holding mechanism, and the depression position can be released by depressing the brake pedal again.

  The holding mechanism includes a ratchet that rotates integrally with the brake pedal, a pole that is swingably supported by a mounting bracket that supports the brake pedal, and a bias that biases the pawl of the pole toward the ratchet teeth. The assist mechanism is normally composed of a solenoid that extends or retracts a rod that can freely advance and retract by a control signal received from the control mechanism, and one end (one end) sandwiching a lever swing shaft provided in the mounting bracket. And an assist lever with the other end (the other end) opposed to the vicinity of the pawl of the pole. When the assist mechanism receives a control signal and extends or retracts the rod, the assist lever The other end, which rotates in the direction opposite to the one end of the pole, is pressed near the pawl claw, weakening the urging force of the urging means, making it easier for the pawl claw to separate from the ratchet teeth , It may allow release the depression posture of the brake pedal. The biasing means can be exemplified by a coil spring that spans between the mounting bracket and the pole. The assist lever has a displacement from one end connecting the rod to the lever swing shaft and the length from the other end pressing near the pawl claw to the lever swing shaft. Even if is small, the amount of displacement of the other end pushing the vicinity of the pawl of the pole can be increased, and the pawl can be reliably pushed away from the ratchet teeth.

  Here, the holding mechanism allows the pole to swing freely supported by the mounting bracket by passing a pole swinging shaft provided in the mounting bracket through a long hole for the pole provided in the pole. When the pawl is engaged with one of the inner peripheral edges (one edge) of the long hole for the pole by one means, the pawl is engaged with the ratchet teeth and the other end of the assist lever is pressed. A pole swinging shaft may be engaged with the other (other edge) of the inner peripheral edge to weaken the biasing force of the biasing means so that the pawl claw can be easily separated from the ratchet teeth. As a result, the pole changes the engagement position of the long hole for the pole with respect to the pole swinging shaft, so that the biasing means acts strongly when the assist lever is not pressed, and the biasing means when the assist lever is pressed. This makes it easier to select a state in which the nail can be easily separated from the teeth of the ratchet.

  In addition, the assist mechanism can be freely set in the positional relationship between the solenoid and the assist lever by connecting the solenoid rod and one end of the assist lever by a link or a link mechanism. Even in a foot-operated parking brake device with a small amount, the solenoid and the assist lever are easily incorporated. The link mechanism is configured by connecting a plurality of links. Here, for the purpose of not taking away the surplus space in the foot-operated parking brake device and reliably transmitting the expansion / contraction movement of the rod of the solenoid to the assist lever, a link mechanism configured by connecting a plurality of links is used. It is preferable that the solenoid rod and the one end of the assist lever are connected by only one link.

  The foot-operated parking brake device of the present invention releases the brake pedal depression posture by weakening holding by the holding mechanism only when the brake detecting means detects the operation of the parking brake and the ignition detecting means detects the ignition conduction. to enable. This brings about an effect that the parking brake cannot be released unless the ignition is conducted, that is, the engine is started, and the parking brake is released in the absence of the driver. Further, for example, in an automobile without a door, there is an effect that the operating state of the parking brake is not released due to mischief when the driver leaves.

  Many foot-operated parking brake devices constitute a holding mechanism for engaging ratchet teeth provided on a brake pedal with pawl claws pivotally attached to a mounting bracket. Solenoid and assist lever simplify the assist mechanism that combines the electrical mechanism that operates in response to the electrical signal transmitted from the control means and the physical mechanism that makes it easier to separate the pawl claw from the ratchet teeth. Configure. As a result, a simple assist mechanism composed of a solenoid and an assist lever not only makes it difficult to break, but also assists the assist lever amplifies the force with which the solenoid rod retracts, making it easier to counteract the bias of the biasing means. Can also be obtained.

  When the pole that engages the pole swing shaft with the long hole for the pole constitutes an assist mechanism with a combination of a solenoid and an assist lever, the holding mechanism that remains uncertain only by swinging the assist lever is released. There is an effect to make sure. In addition, if the rod of the solenoid constituting the assist mechanism and one end of the assist lever are connected by a link or a link mechanism, the positional relationship between the solenoid and the assist lever can be freely set. Can be easily incorporated into the foot-operated parking brake device.

It is the perspective view which looked at an example of the stepping type parng brake device to which the present invention was applied from the back (driver side). FIG. 2 is a perspective view corresponding to FIG. 1 illustrating a state where a right mounting bracket of the foot-operated parking brake device of the present example is removed. It is a partial side view showing the principal part of the stepping type parking brake device of this example in a state where the parking brake is released and the ignition is not conducted. It is a partial side view showing the principal part of the stepping type parking brake device of this example in a state where the parking brake is operating but the ignition is not conducted. It is a partial side view showing the principal part of the stepping type parking brake device of the present example in a state where the parking brake is operated and the ignition is also conducted. It is a partial side view showing the principal part of the foot-operated parking brake device of this example in a state where the parking pedal is depressed in a state where the parking brake is activated and the ignition is also conducted. It is a partial side view showing the principal part of the stepping type parking brake device of this example in a state where the parking brake is released and the ignition is conducted.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The foot-operated parking brake device 1 of the present invention is configured as shown in FIGS. The foot-operated parking brake device 1 of this example includes a brake pedal 11 between a left mounting bracket 13a fixed to a vehicle body (not shown) and a right mounting bracket 13b fixed to the left mounting bracket 13a. The pole 14 and the assist lever 17 are sandwiched so as to be rotatable or swingable, respectively, and are configured as an integral module. In the electrical system, the ignition detection means 3 connected to the ignition 31 and the push switch (brake detection means) 2 and the solenoid 16 fixed to the right mounting bracket 13b are connected to the control mechanism 4 (for example, ICU). And configured.

  The direction in the foot-operated parking brake device 1 of the present example follows the front and rear, the left and right and the top and bottom of the vehicle body. That is, in FIGS. 1 and 2, except for the electrical system block diagram (ignition 31, ignition detection means 3, control mechanism 4), the upper right side is the front, the lower left side is the rear, and the upper left side is the left side. And the diagonally lower right side of the drawing is the right side. In FIG. 3 and subsequent figures, except for the electrical system block diagram (ignition 31, ignition detection means 3, control mechanism 4), the right side in the figure is the front, the left side is the rear, the back of the drawing is the left, and the front of the drawing is On the right.

  The brake pedal 11 is a sheet metal member that narrows downward, and is provided with flanges on the upper and lower edges sandwiching the extending direction, and by increasing the section modulus by forming a recess on the surface sandwiched between the flanges, Rigidity against the load caused by stepping on the driver's foot is secured. The brake pedal 11 is pivotally attached to the left mounting bracket 13a by a pedal rotation shaft 111 provided near the upper end, and when the pedal pad 112 provided at the lower end is depressed, the lower end is rotated forward. The brake pedal 11 is urged rearward (for example, leftward in FIG. 1) to return to the initial posture, and returns to the initial posture when the stepping is lost. The brake pedal 11 includes a cable guide 113 for winding a brake cable (not shown) extending from a parking brake (not shown) on a circumference around the pedal turning shaft 111, and a circle around the pedal turning shaft 111. A ratchet 12 in which a large number of teeth 121 are arranged on the circumference is provided.

  The pole 14 is a metal plate having a generally rhombus shape in front view, with protrusions extending vertically and horizontally, centering on a long hole 144 for pole that extends in a substantially vertical direction (the upper end is slightly inclined backward). A pole swinging shaft 142 protruding rightward from 13a is engaged with the inner peripheral edge of the long hole 144 for pole, and the left mounting bracket 13a is pivoted so as to be swingable on the same plane as the ratchet 12. Put on. The pole 14 has a protrusion protruding rearward as a claw 141 facing the teeth 121 of the ratchet 12, and the protrusion protruding forward and the left mounting bracket 13a are connected by a coil spring 162 for biasing the pole. The claw 141 is pressed against the outer peripheral edge or tooth 121 of the ratchet 12. In addition, the pole 14 is provided with a resin cap that alleviates an impact sound when the pressing end 173 collides with the pressed end 143 that is a protruding portion protruding upward that is pressed by the pressing end 173 of the assist lever 17. Wearing.

  The assist lever 17 is a resin plate that is bent so that the middle protrudes rearward, and the pressing end 173 that is the upper end and the connecting end 172 that is the lower end protrude relatively forward, respectively, to the left mounting bracket 13a. On the other hand, the vicinity of the connecting end 172 is pivotally attached by a lever swing shaft 171 so as to be swingable on a plane parallel to the right side with respect to the ratchet 12 and the pole 14. The pressing end 173 that is the upper end forms a convex portion that swells to the left so that the pressed end 143 of the pole 14 can be pressed when it swings forward. The connecting end 172, which is the lower end, is attached to one end of the link 18 that is connected to the rod 161 of the solenoid 16 by the lever side connecting shaft 181.

  The solenoid 16 and the push switch 2 are fixed to the right mounting bracket 13b. For this reason, the solenoid 16 and the push switch 2 are illustrated as floating in the air in FIG. The solenoid 16 of this example has a rod convex coil spring 162 fitted to a rod 161 that advances and retreats forward, and has a rod-like projection provided with a rod long hole 163 into which the rod side connection pin 182 of the link 18 is inserted. The rod 161 is extended as a normal state by being pushed by the biasing coil spring 162. For this reason, the assist lever 17 having the connecting end 172 pushed forward via the link 18 normally lowers the pushing end 171 backward (see FIG. 3). The rod long hole 163 absorbs the change in the engaging position of the rod connecting pin 182 when the rod 161 extends and pushes the link 18.

  The brake detection means of this example detects the operation of the parking brake by detecting that the brake pedal 11 is depressed to the extent that the parking brake is operated. Specifically, the push button 21 urged forward from the push switch 2 fixed to the right mounting bracket 13b is protruded forward, and the button pressing bracket 22 provided on the brake pedal 11 is separated so that the push button 21 is When protruding, a detection signal is sent from the push switch 2 to the control mechanism 4. The detection signal sent to the control mechanism 4 is used not only for sending a control signal to the solenoid 16 for operating the assist lever 17, but also for lighting a parking brake lamp (illustrated) as in the prior art.

  The operation of the parking brake device 1 of this example will be described. In the state where the parking brake is released and the ignition 31 is non-conducting (usually, the engine is stopped) (after stopping, immediately after the engine is turned off, etc.), as shown in FIG. The brake pedal 11 can change its initial posture and posture by simply engaging the pawl 141 with the outer peripheral surface of the ratchet 12 by the action of the coil spring 15 for biasing the pole while engaging with the lower end of the inner peripheral edge of the long hole 144 for pole. Is in a free state. The solenoid 16 can freely move the rod 161 back and forth, but the rod 161 is extended by the biasing of the rod biasing coil spring 162. As a result, the assist lever 17 is in a state in which the connecting end 172 is pushed forward via the link 18, and the pressing end 173 on the opposite side across the lever swinging shaft 71 is swung rearward. It is kept away from the pressed end 143.

  Since the brake pedal 11 is not depressed, the button pressing bracket 22 pushes the push button 21 backward, and no detection signal is sent to the control mechanism 4 from the push switch 2 which is a brake detection means (a signal line is connected). (Displayed with a broken line). Further, since the ignition 31 is also in a non-conduction state, no detection signal is sent from the ignition detection means 3 to the control mechanism 4 (signal lines are indicated by broken lines). For this reason, since the control mechanism 4 does not send a control signal to the solenoid 16 (the signal line is indicated by a broken line), as described above, the solenoid 16 pushes the rod 161 in the free state by the biasing of the rod biasing coil spring 162. It is stretched.

  When the brake pedal 11 is depressed, a brake cable (not shown) is caught in the cable guide 113 and the parking brake (not shown) is activated. The ratchet 12 is also rotated in accordance with the rotation of the brake pedal 11, As seen in FIG. 4, the teeth 121 are engaged with the pawl 141 of the pole 14. Thereby, the depression posture of the brake pedal 11 is maintained. The pawl 14 has a claw 141 pushed by the teeth 121 of the rotating ratchet 12 and engages the pole swinging shaft 142 with the upper end of the inner peripheral edge of the pole long hole 144, thereby The length is made relatively shorter than the length from the pole swing shaft 142 to the connection point of the pole biasing coil spring 15, and the biasing force by the pole biasing coil spring 15 is strengthened by the inverse ratio of the length, Engagement between the claws 141 and the teeth 121 of the ratchet 12 is strengthened. At this time, if the brake pedal 11 is depressed until the parking brake is activated, the button pressing bracket 22 is separated from the push button 21, so that a detection signal is sent from the push switch 2 to the control mechanism 4 (signal in FIG. 4). The line is displayed as a solid line). However, since the ignition detection means 3 does not send the detection signal to the control mechanism 4 as usual, the control mechanism 4 does not send the control signal to the solenoid 16.

  For this reason, the solenoid 16 keeps the rod 161 in the free state extended by the biasing of the rod biasing coil spring 162, and the assist lever 17 swings the pressing end 173 rearward from the pressed end 143 of the pole 14. Keep away. As a result, the engagement of the pawl 141 of the pole 14 with the tooth 12 of the ratchet 12 is not affected by the pressing end 173, and the depression posture of the brake pedal 11 is maintained. This means that even when the brake pedal 11 is further depressed, the engagement of the pawl 141 of the pole 14 with the tooth 12 of the ratchet 12 is not released.For example, the parking brake can be released due to mischief in the state where the ignition 31 is not connected. I can't do it.

  When the ignition 31 is turned on while the brake pedal 11 is depressed (key cylinder rotation or start button is pushed, etc.), the ignition detection means 3 detects the conduction and sends a detection signal to the control mechanism 4 ( In FIG. 5, the signal lines are indicated by solid lines). As a result, the control mechanism 4 receives detection signals from both the push switch 2 and the ignition detection means 3, and sends the control signal to the solenoid 16. Upon receiving the control signal, the solenoid 16 extends the rod 161 against the rod biasing coil spring 162 and pushes the connecting end 172 of the assist lever 17 forward via the link 18, and the assist lever 17 is connected to the connecting end 172. On the other hand, the pressing end 173 which is the upper end on the opposite side across the lever swing shaft 171 is pressed against the pressed end 143 of the pole 14.

  In the assist lever 17 of this example, the length from the lever swing shaft 171 to the pressing end 173 is longer than the length from the lever swing shaft 171 to the connecting end 172. For this reason, even if the forward / backward movement amount (displacement amount) of the rod 161 of the solenoid 16 transmitted through the link 18 is small, the movement amount (displacement amount) of the pressing end 173 of the assist lever 17 can be increased. This is because the pushing end 173 of the assist lever 17 pushes the pushed end 143 of the pole 14 and the pawl 141 of the pole 14 is surely separated from the teeth 121 of the ratchet 12 just by slightly contracting the rod 161 of the solenoid 16. On the other hand, when the rod 161 of the solenoid 16 is slightly extended, the pressing end 173 of the assist lever 17 is greatly separated from the pressed end 143 of the pole 14, and the pawl 141 of the pole 14 is carelessly moved to the teeth of the ratchet 12. It has the effect of clearly separating the function of the assist lever 17 so as not to leave the 121.

  The pole 14 engaging the claw 141 with the tooth 121 of the ratchet 12 maintains the engagement as long as the ratchet 12 does not rotate even when the pressed end 143 is pressed against the pressing end 173 of the assist lever 17. . However, when the brake pedal 11 is depressed and the ratchet 12 is rotated while the pressed end 143 is pressed against the pressing end 173 of the assist lever 17, the pawl 14 is connected to the assist lever 17 as shown in FIG. The pressed end 143 is pushed by the pressing end 173, the pole swinging shaft 142 is engaged with the lower end of the inner peripheral edge of the pole long hole 144, and the pawl 141 is swung up so that the pawl 141 and the ratchet are swung up. The engagement with the 12 teeth 121 is eliminated. Here, by changing from the upper end to the lower end of the inner peripheral edge of the pole elongated hole 144 with which the pole swing shaft 142 is engaged, the pressed end 143 pressed from the pole swing shaft 142 to the pressing end 173 of the assist lever 17 is pushed. And the displacement amount of the claw 141 is increased to make it easier to move away from the teeth 121 of the ratchet 12. Thus, as shown in FIG. 7, the brake pedal 11 that has stopped stepping is released so as to release the stepping posture in response to the tension of the brake cable (not shown), and is rotated to retract the pedal pad 112 to the initial posture. Return.

  As long as the engine is started, the control mechanism 4 continues to receive the detection signal from the ignition detection means 3, but does not receive the detection signal from the push switch 2, and therefore does not send a control signal to the solenoid 16. Is deactivated. For this reason, when the rod 161 of the solenoid 16 is pushed and extended by the rod biasing coil spring 162, the assist lever 17 is pushed forward by the connecting end 172 and the pushing end 173 is poled as shown in FIG. Move away from the 14 pressed ends 143. As a result, the pole 14 is pulled by the coil spring 15 for biasing the pole, and the lower end of the inner periphery of the pole long hole 144 is pressed against the pole swinging shaft 142 to swing the claw 141 toward the ratchet 12 to the initial posture. Return.

1 Foot-operated parking brake device
11 Brake pedal
111 Pedal rotation axis
112 pedal pads
113 Cable guide
12 Ratchet
121 teeth
13a Left mounting bracket
13b Right mounting bracket
14 Paul
141 nails
142 Pole swing axis
143 Pressed end
144 Long hole for pole
15 Pole bias coil spring
16 Solenoid
161 Rod
162 Rod spring coil spring
163 Long hole for rod
17 Assist lever
171 Lever swing shaft
172 Connection end
173 Press end
18 links
181 Lever side connecting shaft
182 Rod side connection pin 2 Push switch
21 Push button
22 Button pressing bracket 3 Ignition detection means
31 Ignition 4 Control mechanism

Claims (4)

In a foot-operated parking brake device in which the operation and release of the parking brake is switched when the driver depresses the brake pedal with his foot,
Ignition detection means for detecting ignition conduction;
Brake detecting means for detecting the operation of the parking brake;
A holding mechanism for holding the brake pedal depression position;
An assist mechanism that weakens the holding by the holding mechanism to release the brake pedal depression posture,
A control mechanism for receiving a detection signal from the ignition detection means and the brake detection means and transmitting a control signal to the assist mechanism,
The assist mechanism
If the brake detection means does not detect the operation of the parking brake, or if the brake detection means detects the operation of the parking brake and the ignition detection means does not detect ignition continuity, the brake detection means does not operate and does not weaken the holding by the holding mechanism. Leave the brake pedal depressed position unreleasable,
The brake detection means detects the operation of the parking brake and the ignition detection means detects the ignition continuity, and is actuated to weaken the holding mechanism and release the brake pedal depression posture. Parking brake device. The holding mechanism is
A ratchet that rotates integrally with the brake pedal;
A pole swingably supported by a mounting bracket that supports the brake pedal;
The urging means for urging the pawl claw toward the ratchet teeth;
The assist mechanism
A solenoid that expands or retracts a rod that is normally movable forward and backward by a control signal received from the control mechanism;
The rod is connected to one of both ends sandwiching a lever swing shaft provided in the mounting bracket, and the other end of the both ends is configured with an assist lever facing the vicinity of the pawl claw,
When the control signal is received and the rod is extended or retracted, the other end of the assist lever that rotates in the opposite direction is pressed near the pawl of the pole, and the bias of the biasing means is weakened so that the pawl is ratcheted. The foot-operated parking brake device according to claim 1, wherein the stepping-type parking brake device can be easily released from the teeth of the brake pedal and the brake pedal can be released. The holding mechanism is
By passing the pole swinging shaft provided on the mounting bracket through the long hole for pole provided on the pole, the pole is supported swingably on the mounting bracket,
Paul
When the pawl is engaged with one of the inner peripheral edges of the long hole for the pole facing the major axis by the biasing means and the pawl is engaged with the ratchet teeth and the other end of the assist lever is pressed, The foot-operated parking brake device according to claim 2, wherein a pole swinging shaft is engaged with the other peripheral edge to weaken the urging force of the urging means so that the pawl of the pole is easily separated from the teeth of the ratchet. The assist mechanism
4. The stepping type parking brake device according to claim 2, wherein the solenoid rod and one end of the assist lever are connected by a link.

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