JP3145898U - Body frame with movable rear brake caliper - Google Patents

Abstract

A vehicle body frame including a movable rear brake caliper capable of transmitting braking force by a brake to a top tube without using a seat stay is provided.
A top tube is provided, a seat tube is provided at a rear end of the top tube, a seat stay is connected to the seat tube, a rear suspension device is provided to the seat stay, and a connection frame is provided. An axle is inserted between the connecting frames, and a caliper member 20 is mounted on the axle, and a caliper coupling portion 22 and an arm 23 are provided on the caliper member, and are connected between the lower end of the arm and the lower end of the seat tube. A rod 30 is interposed.
[Selection] Figure 1

Description

  The present invention relates to a bicycle frame, and more particularly to a vehicle body frame having a movable rear brake caliper.

  As shown in FIG. 5, the rear brake device provided in the conventional bicycle has two movable seat stays (41) extending rearward to a seat tube (401) provided at the rear end of the top tube (40). And a rear suspension device (42) is provided between the front end of the seat stay (41) and the seat tube (401), and one connecting frame is provided on each side of the rear end of the seat stay (41). (411) is provided, and the brake caliper (B) is coupled to the upper portion of the connecting frame (411) on one side.

  Further, during the operation of the conventional rear brake device, the brake caliper (B) generates a braking force by the brake toward the front, and the braking force is transmitted to the seat stay (41), so that the rear suspension device (42 ) To the top tube (40).

  However, as described above, since the braking force by the brake is transmitted through the rear suspension device (42), the braking force by the brake and the rear suspension device (42) interfere with each other. As a result, both brake performance and suspension performance are degraded. Further, since the braking force by the brake is applied to the seat stay (41), the strength of the seat stay (41) cannot be reduced in designing, so that the weight of the seat stay (41) can be reduced. Can not.

  Therefore, the present invention was devised, and the conventional problem that the braking effect by the brake and the rear suspension device interfere with each other makes it impossible to obtain an excellent braking and suspension effect. An object of the present invention is to provide a vehicle body frame having a movable rear brake caliber that obtains excellent braking and suspension effects by directly transmitting braking force by a brake to the top tube without going through a seat stay. It is said.

  The invention of claim 1 of the present application has a top tube, a seat tube is formed at the rear end of the top tube, two seat stays are connected to the seat tube, and the top of the seat stay is above the top end. A rear suspension device for connecting to the tube is provided, and one connecting frame is provided on each of both sides of the rear end, an axle is inserted between the two connecting frames, and one side connection on the axle is provided. A caliper member is mounted on the inner side of the frame so as to be swingable in the front-rear direction, and a caliper coupling portion for coupling to the brake caliper is formed at the upper portion of the caliper member. A movable rear, wherein a connecting rod is pivotally interposed between a lower end of the arm and a lower end of the seat tube. Body frame with a rake caliper, to provide.

  In the invention of claim 2 of the present application, a hub is rotatably mounted on the axle, a disk rotor is combined with one side of the hub, and one end of the hub and the connection frame on the one side of the axle are connected to each other. 2. A vehicle body frame having a movable rear brake caliper according to claim 1, wherein a sleeve is fitted therebetween, and a caliper member is mounted on the sleeve so as to be swingable in the front-rear direction.

  The invention of claim 3 of the present application is such that the caliper member is installed in an inclined shape between the connection frame on one side and the disc rotor, and has an elongated plate body having a length substantially equal to the disc rotor. The movable rear brake according to claim 2, wherein a bearing hole is formed in a central portion of the caliper member, and a bearing that fits a sleeve on the axle is fitted in the bearing hole. A body frame including a caliper is provided.

  In the invention of claim 4 of the present application, a front screwing portion is formed on the left side of the lower end of the seat tube, a rear screwing hole is formed in the lower end of the arm, and both ends of the connecting rod have a ring shape. A front hole and a rear hole corresponding to the front screwing portion and the rear screwing hole are formed in the ring-shaped end portions, respectively, and the front screwing portion, the front hole, and the rear screwing hole, The vehicle body frame provided with the movable rear brake caliper according to any one of claims 1 to 3, wherein the rear holes are respectively screwed by fixing members.

  5. The movable rear brake caliper according to claim 1, wherein the seat stay is connected to the top tube in a movable state. 6. A vehicle body frame comprising:

  The invention according to claim 6 of the present application provides a vehicle body frame having a movable rear brake caliper according to any one of claims 1 to 5, wherein the axle is simply removable. .

  The present invention solves the above-described problems. When a brake caliper having a caliper coupling portion is operated with respect to the disc rotor, a braking force is generated by the brake toward the front in the caliper bar coupling portion, and the brake The braking force is transmitted to the caliper member swingable in the front-rear direction, and the arm at the lower end of the caliper member moves rearward, thereby pulling the connecting rod rearward, and the braking force by the brake is applied to the connecting rod Therefore, the braking force by the brake can be reliably transmitted to the top tube via the caliper member and the connecting rod.

  Furthermore, in the present invention, since the seat stay and the rear suspension device are not located on the transmission route of the braking force by the brake, there is no mutual interference between the braking force by the brake and the rear suspension device. Excellent braking and suspension effects can be obtained.

  In the present invention, since the braking force by the brake is directly transmitted from the caliper member to the top tube, the seat stay does not receive the component force, so the strength of the seat stay is reduced and the weight is reduced. Can do.

  In addition, in the present invention, since the axle is a simple detachable type, the hub can be attached and detached between the two connecting frames in a short time, so that the convenience of inspection, maintenance and repair can be improved. It can be greatly improved.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following Example is only what showed the preferred embodiment of this invention, and the technical scope of this invention is not limited to the following Example itself at all.

  FIG. 1 is a side view showing a usage state of a vehicle body frame having a movable rear brake caliper according to the present invention, and FIG. 2 is an exploded perspective view showing a usage state of a vehicle body frame having a movable rear brake caliper according to the present invention. 3 is a partial perspective view showing a use state of a vehicle body frame having a movable rear brake caliper according to the present invention, and FIG. 4 shows a use state of a vehicle body frame having a movable rear brake caliper according to the present invention. It is a partial expanded side view shown.

  As shown in FIGS. 1 to 4, a vehicle body frame having a movable rear brake caliper according to the present invention has a top tube (10), and a seat tube (101) is provided at the rear end of the top tube (10). Two movable seat stays (11) that are formed and extend rearward are connected to the seat tube (101), and a front screwing portion (102) is formed on the lower left side of the seat tube (101). 11), a rear suspension device (12) for connecting to the seat tube (101) is provided on the upper side of the front end, and one connection frame (111) is provided on both sides of the rear end.

  A simple detachable axle (13) is inserted between the two connecting frames (111), and a hub (14) is rotatably mounted on the axle (13). One side of the hub (14) And a disk rotor (15), and a sleeve (16) is fitted between the one end of the hub (14) and the connecting frame (111) on the one side of the axle (13).

  In the axle (13), the disc rotor (swingable in the front-rear direction) is arranged inside the one side connecting frame (111), specifically between the one side connecting frame (111) and the disc rotor (15). 15) a caliper member (20), which is an elongated plate body having a length substantially equal to that of 15), is mounted in an inclined manner, and a bearing hole (21) is formed in the center of the caliper member (20), A bearing (211) for fitting with the sleeve (16) on the axle (13) is fitted into the bearing hole (21).

  Further, a caliper coupling part (22) for coupling to the brake caliper (A) is provided on the upper part of the caliper member (20), and the caliper coupling part (22) is arranged around the disk rotor (15). Therefore, when the caliper coupling portion (22) swings back and forth, it moves along the periphery of the disk rotor (15). An arm (23) is formed in the lower part of the caliper member (20). The arm (23) extends downward and has a rear screw hole (231) formed at the lower end.

  Furthermore, it has a connecting rod (30) whose both ends are ring-shaped, and a front hole corresponding to the front screwing portion (102) and the rear screwing hole (231) at both ends of the connecting rod (30), respectively. (31) and the rear hole (32) are formed, and the front screwing part (102) and the front hole (31), and the rear screwing hole (231) and the rear hole (32) are fixed. Screwed by the member (33).

  As described above, according to the vehicle body frame including the movable rear brake caliper of the present invention, the caliper coupling portion (22) is located at a corresponding location around the brake rotor (15), and the caliper member (20 ) Has substantially the same length as the disc rotor (15), the brake caliper (A) coupled to the caliper coupling portion (22) swings back and forth with respect to the disc rotor (15). That is, when the seat stay (11) swings vertically, the swing is transmitted to the connecting rod (30) and the caliper member (20), and they swing together, thereby being coupled to the caliper coupling portion (22). Since the brake caliper (A) is swung back and forth along the circumference of the disk rotor (15), it is possible to always obtain an excellent braking effect.

  More specifically, when the brake caliper (A) having the caliper coupling portion (22) is operated with respect to the disc rotor (15), a braking force is generated by the brake toward the front in the caliper coupling portion (22). The braking force by the brake is transmitted to the caliper member (20) swingable in the front-rear direction, and the arm (23) at the lower end of the caliper member (20) moves rearward, whereby the connecting rod (30 ) Is pulled rearward and the braking force by the brake is transmitted to the seat tube (101) via the connecting rod (30), so that the braking force by the brake is transmitted via the caliper member (20) and the connecting rod (30). It can be reliably transmitted to the top tube (10).

  According to the present invention, since the seat stay and the rear suspension device do not have to be positioned on the transmission route of the braking force by the brake, the braking force by the brake and the rear suspension device are mutually connected. Therefore, excellent braking and suspension effects can be obtained.

  In addition to the fact that the excellent braking and suspension effects can be obtained, the pressure component due to the braking force of the brake is not given to the rear frame structure. Therefore, when designing such a structure, the design value of the bending strength is used. Or the structural weight can be reduced. In addition, in the present invention, since the axle is a simple detachable type, the hub can be attached and detached between the two connecting frames in a short time, so that the convenience of inspection, maintenance and repair can be improved. It can be greatly improved.

It is a side view which shows the use condition of a vehicle body frame provided with the movable rear brake caliper which concerns on this invention. It is a disassembled perspective view which shows the use condition of a vehicle body frame provided with the movable rear brake caliper which concerns on this invention. It is a fragmentary perspective view which shows the use condition of a vehicle body frame provided with the movable rear brake caliper which concerns on this invention. It is a partial expanded sectional view which shows the use condition of a vehicle body frame provided with the movable rear brake caliper which concerns on this invention. It is a side view of the conventional rear brake device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Top tube 101 Seat tube 102 Front screwing part 11 Seat stay 111 Connection frame 12 Rear suspension apparatus 13 Axle 14 Hub 15 Disc rotor 16 Sleeve 20 Caliper member 21 Bearing hole 211 Bearing 22 Caliper coupling part 23 Arm 231 Rear screwing hole 30 Connecting rod 31 Front hole 32 Rear hole 33 Fixing member 40 Top tube 401 Seat tube 41 Seat stay 411 Connection frame 42 Rear suspension device A Brake caliper B Brake caliper

Claims (6)

A rear suspension device having a top tube, a seat tube formed at the rear end of the top tube, two seat stays connected to the seat tube, and connected to the top tube above the front end of the seat stay Are provided, one connecting frame is provided on each side of the rear end, an axle is inserted between the two connecting frames,
On the axle, a caliper member is mounted so as to be swingable in the front-rear direction on the inner side of the connecting frame on one side, and a caliper coupling part for coupling with a brake caliper is formed on the upper part of the caliper member, and a lower part In addition, an arm extending downward is formed, and a connecting rod is pivotably interposed between a lower end of the arm and a lower end of the seat tube.
Body frame with movable rear brake caliper.   A hub is rotatably mounted on the axle, a disc rotor is combined with one side of the hub, and a sleeve is fitted between one end of the hub and the connecting frame on the one side of the axle. 2. A vehicle body frame having a movable rear brake caliper according to claim 1, wherein a caliper member is mounted on the sleeve so as to be swingable in the front-rear direction.   The caliper member is an elongated plate body that is installed in an inclined manner between the connection frame on one side and the disk rotor and has a length substantially equal to the disk rotor, and a central portion of the caliper member A vehicle body frame having a movable rear brake caliper according to claim 2, wherein a bearing hole is formed in the bearing hole, and a bearing that fits with a sleeve on the axle is fitted into the bearing hole.   A front screwing portion is formed on the left side of the lower end of the seat tube, a rear screwing hole is formed in the lower end of the arm, and both ends of the connecting rod have a ring shape, and each ring-shaped end portion has a ring shape. A front hole and a rear hole corresponding to the front screw part and the rear screw hole are formed, and the front screw part and the front hole, and the rear screw hole and the rear hole are respectively screwed by fixing members. A vehicle body frame comprising the movable rear brake caliper according to any one of claims 1 to 3.   The vehicle body frame including the movable rear brake caliper according to any one of claims 1 to 4, wherein the seat stay is connected to the top tube in a movable state.   The vehicle body frame comprising the movable rear brake caliper according to any one of claims 1 to 5, wherein the axle is a simple detachable type.

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