JPH05319226A - Step-in type manual brake device - Google Patents

Abstract

PURPOSE:To facilitate the mounting and prevent a pad from unexpectedly coming off by forming the pad of a pedal in an external shape not overhung to the outside from a peripheral edge of the pedal, and inserting protrusions of a reverse side of the pad into a surf ace of the pedal. CONSTITUTION:A point end part of a brake lever 30 is extended to a foot in the vicinity of an operator, and a pedal 36 of directing a tread in a leg direction of the operator is fixedly provided in the topmost end. A pad 37 is mounted on the tread of this pedal 36. This pad 37 is formed in an external shape not overhung to the outside from a peripheral edge of the pedal 36 and mounted by inserting two protrusion 37a, formed in a reverse side of the pad, into two holes 36b formed in the center of the pedal 36. Here is formed the protrusion 37a in a tapered shape with the point end part in width larger than the hole 36b easily insertable, but to provide a constitution prevented from easily coming off. Here are formed also lateral widths of the pedal 36 and pad in the same dimension L, to similarly provide also width in a vertical direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a base fixed to a vehicle body for pivotally supporting a base portion of a brake lever, the tip end portion of which extends to the foot of an operator, and a pedal formed at the tip portion. The present invention relates to a foot-operated type manual brake device which is pushed by a foot through a pad, and a brake cable is pushed and pulled according to the swing of the brake lever to apply braking.

[0002]

2. Description of the Related Art For example, as a foot-operated type manual brake device for a parking brake of a vehicle, a base of a brake lever is pivotably supported on a base fixed to a vehicle body,
One that extends its tip to the operator's foot, pushes the pedal formed on this tip with the foot through the pad, and pushes and pulls the brake cable according to the swing of this brake lever to apply braking. Are known.

Here, the pad is provided on the surface of the pedal mainly for the purpose of preventing the slipping of the foot.
The pad in this type of manual brake device has a peripheral edge curved inwardly, and is attached by hooking this curved portion on the peripheral edge of the pedal, and the peripheral edge of the pad is in a state of protruding from the peripheral edge of the pedal. ..

[0004]

Therefore, although it has an advantage that it can be easily attached, the pad may be caught by the operator's foot and come off. That is, the foot-operated parking brake is usually arranged at a position slightly higher than the accelerator pedal or the like, and the foot pulled up by the operator to operate the pedal passes directly below the pedal of the parking brake. There is a high possibility that the tip of the foot will be caught on the peripheral edge of the pad.

The present invention has been made in view of the above conventional problems, and provides a foot-operated type manual brake device in which a pad attached to a pedal of a brake lever is hard to come off and easy to attach. The purpose is to do.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is that a base of a brake lever is pivotably supported on a base fixed to a vehicle body, and a tip portion of the brake lever is pivoted. In the foot-operated type manual brake device, the pedal formed on the tip of the pedal is pushed by the foot through the pad, and the brake cable is pushed and pulled according to the swing of the brake lever to apply the brake. The foot pad type manual brake device is characterized in that the pad has an outer shape that does not project outside the peripheral edge of the pedal, and is attached by inserting a protrusion on the back surface into the front surface of the pedal.

[0007]

Operation The foot-operated manual brake device of the present invention is
Since the pad of the pedal has an outer shape that does not project outside the peripheral edge of the pedal and is attached by inserting the protrusion on the back surface into the front surface of the pedal, the ease of attachment is secured as in the conventional case. Moreover, the tip of the foot pulled up by the operator to operate the pad does not get caught on the peripheral edge of the pad, and the pad is prevented from being accidentally detached.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

The manual brake device 10 is a rocking coil type foot pedal type, and a base portion 31 of a brake lever 30 is pivotally supported on a base 11 fixed to a vehicle body.
Locking mechanism 5 for restraining the brake lever 30 to this pivot
0 is provided.

As shown in FIGS. 1 and 2, the base 11 includes mounting portions 13a, 13b, 13c and 13d having mounting holes 12a, 12b, 12c and 12d, respectively, and a boss portion 14a for supporting the base portion 31. 14b and a plurality of beams that connect the mounting portion and the boss portion, and the joint structure between the beam and the mounting portion or the boss portion serves as a fixed node. The base 11 is composed of two base constituent members 11a and 11b, and includes a brake lever 30.
Is divided into two parts on the right and left in the axial direction of the central axis of swinging, and the base component 11a and the base component 11b are fastened with bolts at a small boss portion for fixing which is formed at an appropriate interval at each beam end or the like. And are fixed together.

Here, the mounting holes 12a, 12 of the base 11 are
Mounting holes 12a, 12b, 1 of b, 12c, 12d
Reference numeral 2c is for fixing the base 11 to the vehicle body with bolts, and the mounting hole 12d is for mounting an outer tube 29 of a brake cable 28 for transmitting a braking force as shown in FIG.

The brake lever 30 is pivotally supported with the base portion 31 being sandwiched between the boss portions 14a and 14b of the base 11. A drum 34 having the same central axis as the pivot boss 33 is formed outside the pivot boss 33 at the base 31 of the brake lever 30, and a locking coil (not shown) disposed in the drum 34, etc. Together with this, a locking mechanism 50 is configured.

The locking mechanism 50 is provided with a brake lever unless the release lever 53 for reducing the diameter of the locking coil is operated by the frictional force generated by the locking coil which expands only when the brake lever 30 swings in the returning direction. It holds 30 in the braking position.

A circumferential groove 3 is formed on the outer periphery of the drum 34 on the base end side.
5 is formed, the brake cable 28 has a groove 35
The drum 34 is wound around the base end side of the drum 34 in a state of being fitted in, and its front end is attached to an adjust nut mechanism 35 provided on the base 31 side of the brake lever 30 so that the initial tension can be adjusted.

The front end of the brake lever 30 extends to the foot near the operator, and a pedal 36 having a tread surface 36a directed toward the operator's leg is fixedly installed at the tip of the foot. Has a pad 37 attached thereto.
As shown in FIGS. 3 and 4, the pad 37 has an outer shape that does not project outside the peripheral edge of the pedal 36, and has two protrusions 37 a formed on the back surface thereof in two holes formed in the center of the pedal 36. It is attached by inserting it into 36b.

Here, the projection 37a has a tapered shape, and the base end portion thereof has a width larger than that of the hole 36b so that the projection 37a can be easily inserted, but is hard to be removed.

In this case, the lateral width of the pedal 36 and the lateral width of the pad 37 have the same dimension L as shown in FIG. 3, and the longitudinal width is also the same, but the pad 37 is larger than the width of the pedal 36. The width may be reduced.

In the locking mechanism 50, the locking coil expands only when the brake lever 30 swings in the return direction, and unless the release lever 53 that reduces the diameter of the locking coil is operated by the frictional force generated by the expansion of the locking coil. The brake lever 30 is held in the braking position.

Next, the operation will be described. Brake lever 30
Is in the released state (the state shown in FIG. 1), the braking reaction force is not applied to the base portion 31 of the brake lever 30, and the brake cable 28 is relaxed. From this state, when the pedal 36 is stepped on with the foot and the brake lever 30 is swung clockwise in FIG. 1, the brake cable 28 is pulled.

At this time, since the locking mechanism 50 allows the brake lever 30 to swing in this direction, the brake lever 3
0 rotates easily, and when the brake lever 30 is shaken sufficiently, the brake cable 28 is pulled and a sufficient braking force is generated.

When the pedal 36 is stopped, the braking reaction force from the brake cable 28 tries to restore the brake pedal.
The direction of returning from the braking state is not allowed by the locking mechanism 50, so the brake lever 30 cannot return and the braking state is maintained. And the brake lever 3
When the release lever 53 of the locking mechanism 50 is operated to release the constraint of 0, the brake lever 30 returns to the non-operating position and the brake cable 28 relaxes.

When the operator tries to step on the brake lever 30 for the above braking operation and the tip of the foot pulled up by the operator passes through the proximity position of the pedal 36, the pad extends beyond the peripheral edge of the pedal. Since it does not exist, the tip of the foot does not get caught on the periphery of the pad. Moreover, even if some external force is applied to the pad 37 due to some operation of the operator or the like, the pedal 36 at the base end portion of the protrusion 37a is
The projection 37a does not come off due to the engagement with the.

As described above, with the above manual brake device, the pad 37 of the pedal 36 is reliably prevented from being accidentally disengaged, and the ease of attachment of the pad 37 is secured.

The present invention is not limited to the structure of the locking mechanism and the like as in the above-mentioned embodiment, and for example, a locking coil (elastic coil member) is wound around the outer periphery of the drum, or a brake. The same effect can be obtained by applying to various configurations such as a configuration in which a lever and a drum are separately provided and interlocked with a gear.

[0025]

According to the foot-operated type manual brake device of the present invention, the pedal pad has an outer shape that does not extend beyond the peripheral edge of the pedal, and is attached by inserting the protrusion on the back surface into the front surface of the pedal. Therefore, the ease of attachment is secured as in the conventional case, and moreover, the tip of the foot pulled up by the operator trying to operate this is prevented from being caught on the peripheral edge of the pad, and the pad is prevented from being inadvertently removed. It

[Brief description of drawings]

FIG. 1 is a side view of a manual brake device showing an embodiment of the present invention.

FIG. 2 is a view on arrow II of FIG.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of a main part of a manual brake device showing an embodiment of the present invention.

[Explanation of symbols]

 10 ... Manual braking device 11 ... Base 28 ... Brake cable 30 ... Brake lever 31 ... Base 36 ... Pedal 36b ... Hole 37 ... Pad 37a ... Protrusion

Claims (1)

[Claims] 1. A base of a brake lever is pivotably supported on a base fixed to a vehicle body, a tip of the brake lever is extended to a foot of an operator, and a pedal formed at the tip is footed via a pad. In a foot-operated type manual brake device configured to press and pull the brake cable according to the swing of the brake lever to apply braking, the pad has an outer shape that does not project outside the peripheral edge of the pedal, and A foot-operated manual brake device characterized by being installed by inserting the protrusion on the back surface into the front surface.