JP2021165565A - Mechanical multi-like disc brake - Google Patents

Abstract

To improve braking force of a mechanical multi-link disc brake for an automobile.SOLUTION: A drive unit A and a brake unit B having a caliper structure 20 are formed relatively to each other, and a brake line is driven through first and second connection holes 15, 16, so that a spring member 14 is compressed to pull and interlock four link members of a multi-link structure, a pair of swing arms 21 of the brake unit is driven, and a disc brake between the pair of caliper pistons 25 is sandwiched and pressed, thereby exerting the maximum braking force at a starting point of brake operation.SELECTED DRAWING: Figure 1

Description

The present invention relates to a mechanical multi-link disc brake for a bicycle, and more particularly to a practical invention in which the starting point of the brake exerts the maximum force and the effect of labor saving can be achieved.

Bicycles are braked by pressing the wheel frame from the left and right using the brake block of the clamp-type pressing mechanism, but the conventional multi-plate clip-type pressing mechanism for bicycles has a lateral brake system. The forces of the left and right clamp arms acting on the clamp-type pressing mechanism of the bicycle cannot be uniformly symmetrical, and the brake blocks installed on the left and right clamp arms cannot be clamped in a balanced manner with the wheel frame of the bicycle. The force when the pressing mechanism is clamped becomes uneven, and it cannot be smoothly restored when the clamping type pressing mechanism is not used, causing noise and uneven wear of the left and right brake blocks, resulting in poor safety. It has drawbacks. In view of this, one inventor has developed a conventional caliper fixing structure called Practical New Plan M466835 "Disc Brake Caliper Fixing Structure", in which concave arc portions are provided at the upper ends of the two gaskets, and the same. When two insertion pins are extended downward to the lower ends of the two gaskets, two bolts each penetrate the two gaskets, and the caliper is screwed into the front fork of the bicycle, the two insertion pins are The caliper must be inserted and fitted into the corresponding elliptical oblong hole, the outer arc of each bolt must be brought into contact with the concave arc of each gasket, and the two insertion pins allow the washer. Prevent the block from rotating relative to the oblong holes in the disc brake caliper. However, the conventional structure cannot suppress the good labor saving effect when the brake is applied.

Therefore, in response to the problems existing in the above-mentioned conventional structure, how to develop a new structure having the ideal practicality for the consumer who actually uses it is the goal of the related companies to make efforts for research and development. It is the direction. In view of this, the present inventor has designed the members of the present invention based on many years of design experience, and finally achieved the present invention which is certainly practical after careful evaluation in practice.

Japanese Unexamined Patent Publication No. 2003-31579 JP-A-2002-31174 Japanese Unexamined Patent Publication No. 6-185549

An object of the present invention is to solve the above-mentioned drawbacks existing in the existing technology and to provide a mechanical multi-link disc brake having a simple structure, a rational layout, high safety and labor saving.

The technical solution of the present invention includes a brake unit, a drive unit, the brake unit includes a caliper structure, the caliper structure includes two symmetric bases and two symmetric swing arms. Two symmetrical wear-resistant sleeves and two symmetrical caliper pistons are included and opposed to each other, and a space is formed between the two caliper pistons in which a disc brake can be installed. The pivot shaft of the swing arm is pivotally attached to one side of each of the bases, the wear-resistant sleeve is provided inside the base, and the caliper piston is movable inside each of the wear-resistant sleeves. A fixing bolt is installed at a relative position between the swing arm and the caliper piston, and the caliper piston is traction-driven by the swing arm to reciprocate in the wear-resistant sleeve. A rotating swing shaft is provided at the other end of the drive unit, the drive unit includes a multi-link structure, and the multi-link structure is provided at a relative position of the swing shafts of the two symmetrical swing arms. The two swing shafts are provided with synchronous connection pins in the axial direction, and side pivot portions of link members are provided at both ends of the two motive connection pins in the axial direction, respectively, and the two swing arms are provided with the side pivot portions of the link member. The four link members are swung by the swing shaft, the other ends of the two link members are mutually pivotally supported by the pivot shaft, and a pivot hole is provided in the radial direction between the shaft portions of the two pivot shafts. The two pivot holes provided are fixed to the first shaft portion and the second shaft portion of the first wire rod connecting member and the second wire rod connecting member, respectively, and are fixed to the ends of the first shaft portion and the second shaft portion, respectively. The spring members are fixed to each of the above, and the first wire hole and the second wire hole are installed through the inside of the first wire rod connecting member and the second wire rod connecting member, and the brake line is penetrated into the mechanical multi. To provide link disc brakes.

In the present invention, by driving the brake line, four link members having a multi-link structure are pulled and interlocked, and the principle of the multi-link lever is used to drive the two swing arms of the brake unit to drive the caliper piston. To perform pressure braking on the disc brake, control the starting point of the brake so that the maximum force can be exerted, and achieve the effect of labor saving.

It is a perspective view of the mechanical multi-link disc brake of this invention. It is explanatory drawing of the drive unit in a non-operating state of this invention. It is explanatory drawing of the brake unit in a non-operating state of this invention. It is explanatory drawing of the drive unit in the operating state of this invention. Explanatory drawing of the brake unit in the operating state of this invention. It is a figure of the embodiment attached to the rear fork of the bicycle of this invention.

1 to 6 show preferred examples of the mechanical multi-link disc brake of the present invention, but these examples are for illustration purposes only and are not limited to this structure in the present application. including.

The brake unit B includes a caliper structure 20, and the caliper structure 20 constitutes a pair of base 24, a swing arm 21, a wear-resistant sleeve 26, and a caliper piston 25 in a symmetrical manner. A space for installing the disc brake D is formed between the two caliper pistons 25.

The swing arm 21 is pivotally attached to one side of the pair of bases 24 by a pivot shaft 23, and the pair of wear-resistant sleeves 26 are provided inside the base 24, and a caliper piston is provided inside the pair of wear-resistant sleeves 26. 25 is provided so as to be able to reciprocate and slide toward the disc brake D so as to face each other. The swing arm 21 and the caliper piston 25 are connected by a fixing bolt 27, and the caliper piston 25 is towed and driven via the swing arm 21. Then, it is reciprocated in the wear resistant sleeve 26.
A swing shaft 22 for inserting a synchronous connection pin 131 that serves as a rotation shaft is provided at the other end of the swing arm 21.

Two fixing lock holes C are provided at positions protruding from both sides of the base 24, aligned with the connecting portion F installed on the rear fork E of the bicycle, and locked and fixed by the connecting member G.

The drive unit A includes a multi-link structure 10.
The multi-link structure 10 is provided so as to face the swing shaft 22 of the two symmetrical swing arms 21.
Synchronous connection pins 131 are inserted into the two swing shafts 22 in the axial direction, and side pivot portions of the link member 11 are inserted into both ends of the two synchronous connection pins 131 in the radial direction. By providing 13, these two swing arms 21 rotate around each of the swing shafts 22 in conjunction with the swing operation of the four link members 11, and the swing operation becomes possible.
The other ends of each of the two link members 11 are pivotally supported by a pivot shaft 12 so as to be mutually deployable, and a pivot hole 121 inserted in the radial direction is provided in the middle of the shaft portion of the two pivot shafts 12, respectively. The two pivot holes 121 are fixed to the first shaft portion 152 and the second shaft portion 162 of the first wire rod connecting member 15 and the second wire rod connecting member 16, respectively, and the first shaft portion 152 and the second shaft portion 162 are fixed to each other. A spring member 14 is fixed to each end of the portion 162.
Inside the first wire rod connecting member and the second wire rod connecting member, the first wire hole 151 and the second wire hole 162 are pierced and installed, and the brake line L is penetrated into them and fixed by the fixing member L1. do.
The spring member 14 interlocks the deployment of the four link members 11 and the repositioning by the spring with the brake line L, and by driving the brake line L, the four link members 11 of the multi-link structure 10 are pulled and interlocked. Then, by acting as a multi-link lever, the two swing arms 21 of the brake unit B are driven to cause the caliper piston 25 to perform pressure braking on the disc brake D so that the maximum braking force can be exerted at the starting point of the brake operation. And achieve the effect of labor saving.

Next, an interlocking ball head 28 is provided inside the caliper piston 25, an internal thread groove 281 is provided on one side of the interlocking ball head 28, and an external thread 271 of the fixing bolt 27 is screwed. Assemble.
A drive lock groove 273 is provided at the other end of the fixing bolt 27, and a lock hole 213 is provided at a position corresponding to the drive lock groove 273 of the swing arm 21. The other end of the fixing bolt 27 is provided with a lock hole 213. Is pivotally mounted in the ball slot 211 inside the swing arm 21 provided with the movable ball head 272 and corresponding to the movable ball head 272.

A nut member 29 for positioning the movable ball head 272 is further provided at a position where the swing arm 21 and the movable ball head 272 face each other, and the nut member 29 has a socket corresponding to the movable ball head 272. The swing is made by screwing the external threaded portion 291 provided on the outer edge of the nut member 29 and the internal threaded portion 212 corresponding to the external threaded portion 291 provided on the swing arm 21. Assemble and lock the arm 21.

Preferably, the surface of the brake unit B is covered with a protective cover 30, and the protective cover 30 is provided with a hook end 31 for mounting and positioning corresponding to the brake unit B.

In the present invention, by driving the brake line L, the four link members 11 of the multi-link structure 10 of the brake unit B are pulled and interlocked, and the two swing arms 21 of the brake unit B are linked by the operating principle of the multi-link lever. Is driven, and the caliper piston 25 is pressed against the disc brake D so that the maximum braking force can be exerted at the starting point of the braking operation, and the effect of labor saving is achieved.

Summarizing the above description, the present invention is creative because the design of the above-mentioned structure of the present invention can effectively overcome the drawbacks of the conventional invention and has many of the above-mentioned advantages and practical values. It is an excellent invention, and no creation or public use of the same or similar products is found in the same technical field.

A Drive unit B Brake unit C Fixed lock hole D Disc brake E Rear fork F Connection part G Connection member L Brake line L1 Fixing member 10 Multi-link structure 11 Link member 12 Pivot shaft 121 Pivot hole 13 Side pivot part 131 Synchronous connection pin 14 Spring member 15 1st wire connection member 151 1st wire hole 152 1st shaft 16 2nd wire connection 161 2nd wire hole 162 2nd shaft 20 Caliper structure 21 Swing arm 211 Ball slot 212 Internal thread 213 Lock hole 22 Swing shaft 23 Pivot shaft 24 Base 25 Caliper piston 26 Abrasion resistant sleeve 27 Fixing bolt 271 External thread 272 Movable ball head 273 Drive lock groove 28 Drive lock groove 28 Interlocking ball head 281 Internal thread groove 29 Nut member 291 External thread part 292 Socket 30 Protective cover 31 Hook end

Claims (4)

Including the brake unit and the drive unit,
The brake unit includes a caliper structure.
The caliper structure comprises a pair of bases, a swing arm, a wear-resistant sleeve, and a caliper piston symmetrically with respect to each other.
A space for installing a disc brake is formed between the two caliper pistons, the swing arm is pivotally attached to one side of the pair of bases by a pivot shaft, and the pair of bases are inside the base. A wear-resistant sleeve is provided, and a caliper piston is provided inside the sleeve so that it can slide back and forth toward the disc brake.
The swing arm and the caliper piston are connected by a fixing bolt, and the caliper piston is towed and driven via the swing arm so that the caliper piston can reciprocate in the wear-resistant sleeve.
A swing shaft for inserting a synchronous connection pin serving as a rotation axis is provided at the other end of the swing arm.
The drive unit includes a multi-link structure.
The multi-link structure is provided relative to the swing shaft of the two symmetrical swing arms.
Synchronous connection pins are inserted into the two swing shafts in the axial direction, and side pivot portions of the link member are provided at both ends of the two synchronous connection pins inserted in the radial direction. As a result, these two swing arms rotate around each of the swing shafts in conjunction with the swing operation of the four link members so that the swing operation can be performed.
The other ends of each of the two link members are pivotally supported by a pivot shaft so that they can be deployed and operated with each other, and a pivot hole for inserting in the radial direction is provided in the middle of the shaft portion of the two pivot shafts. The pivot holes are fixed to the first shaft portion and the second shaft portion of the first wire rod connecting member and the second wire rod connecting member, respectively, and spring members are fixed to the ends of the first shaft portion and the second shaft portion, respectively. Being done
The first wire hole and the second wire hole are pierced and installed inside the first wire rod connecting member and the second wire rod connecting member, and the brake line is penetrated into them and fixed by the fixing member.
By driving the brake line, the four link members having the multi-link structure are pulled and interlocked, and the two swing arms of the brake unit are driven to cause the caliper piston to perform pressure braking on the disc brake.
Mechanical multi-link disc brake. An interlocking ball head is provided inside the caliper piston, an internal thread groove is provided on one side of the interlocking ball head, and an external thread of a fixing bolt is screwed to assemble.
A drive lock groove is provided at the other end of the fixing bolt, a lock hole is provided at a position corresponding to the drive lock groove of the swing arm, and a movable ball head is provided at the other end of the fixing bolt. It is pivotally attached to a ball slot inside the swing arm provided and provided corresponding to the movable ball head.
The mechanical multi-link disc brake according to claim 1. A nut member for positioning the movable ball head is further provided at a position where the swing arm and the movable ball head face each other, and the nut member is provided with a socket corresponding to the movable ball head, and the said. The external threaded portion provided on the outer edge of the nut member and the internal threaded portion corresponding to the externally threaded portion provided on the swing arm were screwed together to assemble and lock the swing arm.
The mechanical multi-link disc brake according to claim 2. The mechanical multi-link disc brake according to claim 1, wherein the surface of the brake unit is covered with a protective cover, and the protective cover is provided with a hook end for mounting and positioning corresponding to the brake unit.

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