JPH033090Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention consists of a parking brake operating device, more specifically, a first lever that is pivoted to a sector fixed to the vehicle body, and a pivotable lever that is pivoted to the first lever. The present invention relates to a parking brake operating device including a second lever which is attached to the first lever and has a side wall opposite to the inner surface of both side walls of the first lever.

(Prior Art) In general, a parking brake operating device has an operating lever pivotably mounted on the floor between a driver's seat and an auxiliary seat, and operates the parking brake by holding the lever upright. That's what I do.

However, when the parking brake is maintained in an applied state, the upper end of the lever protrudes above the seat cushions of the driver's seat and the auxiliary seat, and therefore, when parking, the driver cannot touch the seat cushions of the respective seats. The upper end of the lever gets in the way when the driver rests while straddling the vehicle, or when the driver transfers from the auxiliary seat to the driver's seat.

Conventionally, however, the lever is formed by two first and second levers, the first lever is pivotally connected to the vehicle body, and the second lever is pivotably supported on the first lever. A stopper for the second lever is provided at a position inward from the top surface of the seat cushion of each seat on the rocking locus of the second lever, and when the parking brake is activated, the second lever is used to control the first lever. The first lever is held in the upright position by swinging upward, and if the second lever becomes an obstacle after that, the second lever is bent with respect to the first lever to the stopper position, and the second lever is held in the upright position. The two levers are retracted inside the seat cushion.

However, in the conventional operating device, when the second lever is operated to the upright position or the bent position and held at each position, the holding of the second lever at each position is not reliable; In some cases, the lever may move on its own, and the second lever is normally operated between the upright position and the folded position by the touch of the hand without checking with the naked eye. At the operating positions, there was a problem that there was no operating feel and the operating feeling was poor when operating the respective positions.

Therefore, previously, in Jitsugan No. 190782,
At the overlapping part of the first lever and the second lever, this first
A ball and a spring for pressing and biasing the ball are provided on the lever side, and a plurality of engaging portions are formed on the second lever side to receive the balls at the upright position and the bent position of the lever, When the second lever is operated to each position, the second lever is reliably held at each position by engaging the ball biased by the spring with the engaging portion, and the second lever is The present invention has proposed a parking brake operating device in which the ball gives a click feeling when the parking brake is operated to each of the positions, thereby increasing the operating feel and providing a good operating feeling.

(Problem to be Solved by the Invention) However, in the operating position of Utility Application No. 190782/1982, one ball and one spring are used to control each engagement of the second lever from one side of the first lever. Therefore, in order to ensure that the second lever is engaged and supported in the upright position and the bent position, the spring that biases the ball must have a high tension. Therefore, with the swinging operation of the second lever, the contact points of the balls, that is, the respective engaging parts, are heavily worn, and rattling occurs between the respective engaging parts and the balls. Furthermore, when the ball is pressed and biased from one side of the first lever toward the second lever as described above, problems such as twisting occur between the levers.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a ball and a spring that presses the ball toward the side walls of the second lever on both side walls of the first lever. A plurality of engaging portions are provided on the outer surfaces of both side walls of the second lever to receive the balls in the upright position and the bent position of the second lever with respect to the first lever. .

(Function) When the second lever is swung to the upright position and the bent position, each ball is moved to the first position.
The second lever is held at each position by engaging the engaging portions of the second lever from both sides of the lever.

(Embodiments) The parking brake operating device according to the present invention will be described below with reference to embodiments shown in the drawings.

The parking brake operating device shown in the drawing is
A first lever 1 having a U-shaped cross section and a pair of opposing side walls 1a and 1b, and a pair of opposing side walls 2.
a, 2b;
The lever 1 is swingably supported on the vehicle body B via a pivot pin 3, and the base of the second lever 2 is interposed between the side walls 1a and 1b of the first lever 1, and pivoted by the pivot pin 4. By supporting the second lever 2
is bendably supported by the first lever 1.

Further, a sector 5 having a plurality of teeth 5a is provided on the vehicle body B between the side walls 1a and 1b of the first lever 1.
while fixing the side wall 2 of the second lever 2.
A generally L-shaped regulating pawl 6 that engages with the teeth 5a of the sector 5 is swingably supported on the pivot pin 4 between a and 2b. The opposite side to the locking side of the second lever 2
A connecting pin 6a is attached to the tip side of the operating rod 7 built into the
are connected via.

In this way, along with the upward swinging operation of the second lever 2, the first lever 1 is raised and the first
The parking brake is actuated by pulling the parking brake operating wire 8 connected to the distal end side of the pivot pin 3 of the lever 1, and at this time, the engagement of the regulating pawl 6 with the sector 5 causes each of the levers to 1 and 2 in an upright state, and when releasing the parking brake, push the release knob 7a provided on the rod 7 to release the engagement of the regulation pawl 6 with the sector 5, and release the respective levers. By swinging the levers 1 and 2 in a lying position, the wire 8 is relaxed and the parking brake is released.

In the parking brake operating device as described above, both side walls 1a of the first lever 1,
Holding tubes 11, 11 each containing a ball 9 and a spring 10 for pressing the ball 9 toward the side walls 2a, 2b of the second lever 2 are provided opposite each other on both sides of the second lever 2. A plurality of engaging portions 12a, 12b are provided on the outer surfaces of the walls 2a, 2b, respectively, for receiving the ball 9 in the upright position and the bent position of the second lever 2 relative to the first lever 1.

Specifically, an extension piece 2 extending parallel to the proximal ends of both side walls 2a and 2b of the second lever 2
c, 2d are integrally formed, and each extension piece 2c, 2d
is superimposed on the side surface of the sector 5, and the holding cylinder 1 is attached to the outside at both side walls 1a, 1b of the first lever 1 facing the respective extension pieces 2c, 2d.
1 and 11, and the ball 9 is held in each holding cylinder 11 by the spring 10, and the extension pieces 2c,
The interior is biased towards the 2d side.

and each extension piece 2 in the second lever 2
Plate materials 13 and 1 are placed on the outer surface side of the tips of c and 2d, respectively.
3 are joined and integrated, and on the outer surface side of each plate material 13,
Two first and second engaging portions 12a and 12b are respectively formed to receive the ball 9 when the second lever 2 is swung to the upright and bent positions, and thus the second lever 2 During the swinging operation to the standing and bending positions, each of the balls 9 is engaged with the engaging portions 12a and 12b of each of the plate materials 13, and the two balls 9 are used to move the second lever 2 to the above-mentioned position. This was done so that it could be held in each position.

In the illustrated embodiment, a flange 11a is provided at one end of the holding cylinder 11, and the flange 11a is attached to the first
The lever 1 is integrally welded to each side wall 1a, 1b, and a threaded portion 11b is formed on the outer circumferential surface of the holding cylinder 11, while a washer 14 is brought into contact with the flange portion 11a and a lock nut 15 is attached to the threaded portion 11b.
One end of a spring 10 which presses and biases the ball 9 is supported in contact with the inner surface of the lock nut 15.

The first and second engaging portions 12 are provided on each of the plate materials 13.
a, 12b, as shown in FIG. 4, the inclination angles of the respective engaging portions 12a, 12b are changed, that is, the swinging operation of the second lever 2 to the upright position is performed. The inclination angle of the first engaging portion 12a with which the ball 9 engages is 90 degrees, and the second engagement with which the ball 9 engages when the second lever 2 is swung to the bending position. The angle of inclination of the joining part 12b is 120 degrees, and when the second lever 2 is swung to the upright position and held at that position, the angle of inclination of the first engaging part 12a with the small inclination angle is 120 degrees. By engaging the ball 9, the lever 2 is reliably held in the upright position, and when the lever 2 is swung from the bent position to the upright position, the second engagement with the large inclination angle Part 1
The ball 9 is lightly released from the lever 2b so that the lever 2 can be swung easily.

In addition, 16 in the figure is a boot provided to cover the parking brake operating device.

The parking brake operating device according to the present invention is constructed as described above, and when the parking brake is operated, the first lever 1 is swung upward as shown in FIG. When the lever 2 is raised upward, the operating wire 8 connected to the second lever 2 is pulled and the parking brake is activated. Also, when the levers 1 and 2 are raised,
The balls 9 in the holding tubes 11 provided on both side walls 1a and 1b of the first lever 1 engage the first engaging portions 12 formed on the extension pieces 2c and 2d of the second lever 2, respectively.
a, and the levers 1 and 2 are held in an upright position.

However, when the parking brake is activated,
When the second lever 2 is in the way, as shown in FIG. 3, the second lever 2 is bent with respect to the first lever 1, and the balls 9 roll and the extension pieces 2c , 2d, respectively, to hold the second lever 2 in the bent state.

(Effects of the invention) As explained above, the parking brake operating device according to the invention includes a holding cylinder on both side walls of the first lever that contains a ball and a spring that presses the ball toward the side wall of the second lever. In other words, a plurality of engaging portions are provided on the outer surfaces of both side walls of the second lever to receive the balls in the upright position and the bent position of the second lever with respect to the first lever. Then, since two balls and two springs are used and the second lever is held at each position by these balls and springs, the tension of the one spring is reduced, and the It is possible to reduce wear of the engaging part, and therefore prevent rattling from occurring between the ball and the engaging part, so that the second
The lever can be reliably held at each of the above positions for a long period of time, and since two balls and two springs are used to engage the respective engaging portions from both sides of the second lever, the above-mentioned This makes it possible to prevent the first and second levers from being twisted, and to smoothly swing the second lever relative to the first lever.

[Brief explanation of the drawing]

1 and 2 show the parking brake operating device according to the present invention, FIG. 1 is a vertical sectional view showing the second lever in the upright state, and FIG. 2 is a longitudinal sectional view showing the second lever in the bent state, respectively. 3 is an enlarged sectional view taken along the line X--X in FIG. 1, and FIG. 4 is a sectional view showing an example of the formation of the engaging portion. 1...First lever, 1a, 1b...Side wall, 2...
...Second lever, 2a, 2b...Side wall, 5...Sector, 9...Ball, 10...Spring, 11...Holding tube, 12a, 12b...Engaging portion.

Claims (1)

[Scope of utility model registration request] A first lever pivotally connected to a sector fixed to the vehicle body; and a second lever bendably pivotally connected to the first lever and having side walls facing inner surfaces of both side walls of the first lever. In the parking brake operating device, holding cylinders each containing a ball and a spring for pressing the ball toward the side wall of the second lever are provided on both side walls of the first lever to face each other; A parking brake operating device characterized in that a plurality of engaging portions are provided on the outer surfaces of both side walls of the two levers to receive the balls at the upright position and the bent position of the second lever with respect to the first lever.