JPS5939094Y2 - hand brake lever device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a handbrake lever device.

When the lever is pulled up when the handbrake is activated, the claw attached to the lever moves while coming into contact with a ratchet formed on the fixed plate, which generates an unpleasant sound.

The present invention aims to provide a handbrake device that can prevent the generation of such unpleasant noises.
The following description will be made based on the illustrated embodiment.

In FIGS. 1 to 3, 1 is a fixed plate equipped with a ratchet 1a, 2 is a handbrake lever rotatably supported on a shaft 3 fixed to the fixed plate 1; A long hole 2a is formed.

Reference numeral 4 denotes an actuation lever that is rotatably supported on the shaft 3, and 41 is a friction member such as rubber that is disposed between the actuation lever 4 and the fixed plate 1, and is fixed and fixed to the actuation lever 4. It is in frictional contact with the side surface of the plate 1.

A claw 6 is rotatably supported on a shaft 5 fixed to the operating lever 4, and is provided with a pawl 6a that engages with a ratchet 1a provided on the fixed plate 1.
A pin 7 that engages with an elongated hole 2a formed in the handbrake lever 2 is attached.

Note that 8 in the figure is a bushing rod having an engaging portion 8a at one end that engages with a recess 6b formed in the claw 6.
The other end is connected to a button 9 disposed at the upper end of the handbrake lever 2, and the return spring 1
0, it is always pulled up in the direction of the arrow.

The present invention is constructed as described above, and its operation will be explained below.

Figure 1 shows the handbrake lever 2 in its returned position.
A claw 6a of the claw 6 is engaged with a ratchet 1a of the fixed plate 1.

Now, in order to operate the handbrake from the state shown in FIG. 1, when the lever 2 is moved slightly in the direction of the arrow shown in FIG. 1 is maintained by the frictional resistance 41, but since the handbrake lever 2 operates in the direction of the arrow in FIG. 4, the elongated hole 2a formed in the lever 2
The pin 7 attached to the claw 6 engaged with the pin 7 moves along the elongated hole 2a and is pushed up.

As a result, the claw 6 moves the shaft 5 to the center as shown in FIG.
Since the claw 6 rotates clockwise during binding, the claw 6a provided on the claw 6 comes off the ratchet 1a.

Therefore, if the handbrake lever 2 is operated in the direction of the arrow in FIG. 4 in this state, the pawl 6a of the claw 6 will operate while being detached from the ratchet 1a, causing an unpleasant noise due to the contact between the pawl 6a and the ratchet 1a. Handbrake lever 2
can be raised.

Once the handbrake lever 2 is pulled up, when the lever 2 is released, the lever 2 rotates counterclockwise around the shaft 3, so that the pin 7 is inserted into the elongated hole 2a formed in the lever 2. , the pin 7 is attached, the row 6 rotates counterclockwise around the shaft 5, and the pawl 6a provided on the claw 6 engages with the ratchet 1a to release the handbrake lever. 2 is locked in the operating state.

In the process of operating the hand brake lever 2, when the pin 7 reaches the left end in the view of the elongated hole 2a as shown in FIG. 4, the operating force of the hand brake lever 2 is transferred from the pin 7 to the claw 6 and the shaft 5. The actuating lever 3, to which the shaft 5 is fixed, overcomes the frictional resistance generated between the friction member 41 and the fixed plate 1 and rotates about the shaft 3.

In addition, when returning the handbrake lever 2 while the handbrake lever is in the operating state, pressing the bushing button 9 pushes down the bushing rod 8 connected to the button 9. Engagement part 8a
As a result, the claw 6 is rotated clockwise in the figure around the shaft 5, so the pawl 6a provided on the claw 6 is separated from the ratchet 1a, and the handbrake lever 2 is moved to the shaft 3 in the same way as in a normal handbrake device. It can be rotated counterclockwise in the figure around .

As described above, according to the present invention, the handbrake lever 2
When the claw 6 is pulled up, the claw 6 automatically rotates and the claw provided on the claw 6 separates from the ratchet 1a formed on the fixed plate 1, so that the claw and the ratchet come into contact during operation. This makes it possible to reliably prevent the occurrence of unpleasant noises.

[Brief explanation of drawings]

Fig. 1 is a side view of the handbrake device according to the present invention, Fig. 2 is a new view taken along line A-A in Fig. 1, and Fig. 3 is a sectional view taken along line B-B in Fig. 1. FIG. 4 is a side view showing the operating state of the device of the present invention. 1: Fixed plate, 2: Handbrake lever 4: Operating lever, 41: Friction member, 6: Claw, 7: Pin.

Claims (1)

[Scope of utility model registration request] an actuation lever rotatably supported on a shaft fixed to a fixed plate provided with a ratchet; and an actuation lever disposed between the actuation lever and the fixed plate, fixed to one of them and frictionally engaged with the other. a friction member that is rotatably supported on a shaft fixed to the operating lever, a claw that is rotatably supported on a shaft that engages with the ratchet, and has an engagement pin attached to the side thereof, and is attached to the claw. A handbrake lever device, characterized in that the engagement pin is engaged with an elongated hole formed in a side of a handbrake lever rotatably supported by a shaft fixed to the fixed plate.