JPS6122053Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a parking brake in which an operating lever can be bent in the middle.

As shown in Fig. 1, the parking brake is pivotally mounted to a ratchet plate 1 having teeth 11 fixed to the attached part so that it can be raised and lowered, and the parking brake can be moved over the teeth 11 in the counterclockwise direction in the figure. A ratchet pawl 2 that engages with the teeth 11 is pivotally mounted so that it cannot be crossed over in the direction, and engages with the split hole 21 of the ratchet pawl 2 with a hook 31 at one end, and has a release button 32 on the other end and is driven by a compression spring 33. As shown in the figure, the ratchet claw 2 is biased upward in the direction of engagement with the teeth 11, and the release rod 3 is disengaged by pressing the release button 32. There is a device in which the lever 4 is used to operate an operating wire 43 connected to an operating end 42 of the lever.

However, with this conventional parking brake,
Since the operating lever 4 stands up in the mounting position, it becomes an obstacle to the operation. For example, in the case of a so-called center lever type parking brake where the parking brake is installed near the middle of the seat of a car, when the control lever 4 is pulled up and activated, it stands up near the middle of the seat, making it impossible to release it carelessly. There is a risk that touching and pressing the button 32 will release the parking brake, or it may become a hindrance when moving from side to side while riding.

In view of the above-mentioned problems, the present invention provides an operating lever that can be folded down in the middle even when the parking brake is applied, and that does not affect the original function of the parking brake at all.

The present invention will be explained below with reference to embodiments shown in the drawings. Note that the same functional parts are given the same numbers.

As shown in FIG. 2, an operating lever 4 is pivotally attached to a ratchet plate 1, and a release rod 3 biased by a compression spring 33 engages and disengages a ratchet pawl 2, as in the conventional case. In this embodiment, the operating lever 4 is divided into an operating portion 44 at the base and a gripping lever 46 that is pivotally supported on the operating portion 44 by a shaft 45. Here, the shaft 45 is shared with the rotation axis of the ratchet pawl 2. ing. The gripping lever 46 has an operated arm 23 of the ratchet pawl 2 which is biased clockwise in the figure by a spring 22 so as to mesh with the teeth 11 of the ratchet plate 1.
The release rod 3 is equipped with a push rod 34 that is pressed in contact with the push rod 34 to operate the ratchet pawl 2 only in the counterclockwise release direction as shown in the figure.
It is energized and prepared. One end 51 of the grip lever 46 and the action part 44 is pivotally connected to the action part 44 by a shaft 53, and the other end 52 is a long hole 47 bored in the grip lever 46.
It is connected by a connecting link 5 which slidably engages with the latching plate 1, and here the axis 53 is common to the pivot axis of the working part 44 to the ratchet plate 1. Further, the other end 52 of the connecting link 5 engages with a hook 35 provided on the release rod 3, which engages only in the opposite direction to the operating direction, but engages in the operating direction so as not to interfere with the operation, A compression spring 33 constantly pulls the other end 52 of the connecting link 5 in a direction opposite to the operating direction.

To bend the gripping lever 46, the gripping lever 46 is rotated clockwise in the figure while the parking brake shown in FIG. At the initial stage of bending, the release rod 3 is pulled by the connecting link 5 via the hook 35 and tries to compress the compression spring 33, so its biasing action acts as a resistance to the force that tries to bend the gripping lever 46. At all times, the grip lever 46 tries to maintain its upright position. If the gripping lever 46 is further bent against the resistance, the other end 52 of the connecting link 5 will bend while sliding through the elongated hole 47, and when it crosses the connecting extension line between the shafts 53 and 45, the compression spring 33 will be released.
acts as a force to bend the gripping lever 46, resulting in the state shown by the two-dot chain line in the figure, where it is urged into contact with the stopper pin 36 and does not swing unstablely. Further, even if the release button 32 is pressed in the bent state, the push rod 34 will not be activated, so the parking brake will not be released inadvertently.

According to this invention, the function as a parking brake is not diminished at all, and since the operating lever can be bent at the middle, it does not interfere with operation, and furthermore, the parking brake is released in the folded state. Because I can't
This makes it possible to provide a parking brake that is extremely easy to use and safe.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a conventional example, and FIG. 2 is a longitudinal sectional view showing an embodiment of the present invention. 1... Ratchet plate, 2... Ratchet claw, 3... Release rod, 4... Operation lever,
44... Acting part, 46... Gripping lever, 5... Connection link.

Claims (1)

[Scope of utility model registration request] An operating lever is pivotally attached to the ratchet plate so that it can be raised and lowered, and by operating a release rod provided on the operating lever, a ratchet pawl that engages with the teeth of the ratchet plate is engaged and released, and the operating lever is swung to apply the brake. In the parking brake for operating the parking brake, the operating lever is divided into an operating part at the base and a grip lever pivotally supported by the operating part, and the grip lever is biased so as to mesh with the teeth of the ratchet plate. A release rod is provided with a ratchet pawl that operates only in the release direction and is normally biased in the opposite direction to the operating direction, and the gripping lever and the operating section are connected at one end to the operating section and at the other end. be connected by a connecting link that slidably engages with an elongated hole drilled in the gripping lever and engages with a hook provided on the release rod that engages only in the direction opposite to the operating direction thereof. A parking brake featuring