JPS5824635Y2 - Bicycle brake support device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a support device for a brake for a bicycle, particularly for a piste, which is intended to removably and firmly pivot a caliper brake on the upper part of a pair of fork legs via a fitting.

Conventionally, in bicycles for bicycle racing (piste use), a support device, namely a pair of backhawks, is attached to the rear wheel according to the riding conditions, and two horizontal rods are attached from the front and back via bolts and nuts, one of which is attached to the rear wheel. The caliper brake was made detachable by means of a device in which the caliper brake was pivotally supported by a mounting hole provided in the rod and a fixed shaft.

However, due to recent legal requirements to ensure safety, it has become necessary to install caliber brakes on the front wheels as well.

However, on the front wheel of this type of bicycle, the distance between the lower surface of the fork shoulder and the outer periphery of the wheel is narrow, so the brake cannot be installed using the conventional caliper brake installation device as described above. Since the thickness of the fork shoulder on a bicycle is generally thin, processing such as providing a hole in the fork shoulder and attaching the brake through the hole poses problems in terms of the strength and structure of the fork shoulder.

The present invention solves such problems, and can be easily attached and detached without changing the shape of the conventional front fork or caliber brake, or without any processing on the fork shoulder. The purpose of this device is to firmly mount the brake and to provide an inexpensive device.
A support hole for pivotally supporting the support shaft of the caliber brake is provided, and a pair of left and right fixing means are provided for fixing the lower part of each side of the main body to the upper part of each of the left and right fork feet of the front fork, and the fixing means is attached to the fork. A clip band that is U-shaped in plan view and that holds the foot from the rear and has a pair of locking holes formed in the shape of long holes in the front and rear directions at both ends of the clip band, and both ends of the clip band. It has a pair of lugs that are disposed between them and are inserted and removably inserted into the locking holes on both sides, and the longitudinal direction of the tip side of the lugs is vertical, so that the lugs can be engaged with the tip side of the clip band. A band locking tool that is removably locked, and a U-shape in side view that is fitted onto the band locking tool from the front side, and is located behind the lower part of each side of the main body, and the tip of the image is a hawk. A fixing piece that contacts the front of the leg, and a fixing bolt that fixes the lower part of each side of the main body to the hawk leg by being inserted from the front side through each lower part of the main body and the fixed piece and screwed to the band locking device. The main feature is that the fixing holes in the lower portions of both sides of the main body, into which the fixing bolts are inserted, are in the shape of horizontally elongated holes.

The present invention will be described in detail below with reference to the illustrated embodiments. The drawings show a bicycle brake support device according to the present invention;
4, reference numeral 1 denotes a caliper brake, which has brake shoes 2 protruding from the inner surface of its lower end, and a pair of arms 3, 3 curved inward, which are connected by a support shaft 5 through a connecting hole 4. It is able to swing freely around the shaft 5.

Reference numeral 6 denotes the main body, which is an arch-shaped flat plate, with a cylindrical convex portion 7 formed in the center of the front surface, and a support hole 8, which is a screw hole, provided in the center.

The support shaft 5 of the head bolt is screwed into the support hole 8 .

That is, the caliber brake 1 is pivotally supported by the main body 6 by inserting the threaded portion of the support shaft 5 into the connection hole 4 and screwing it into the support hole 8 .

On the other hand, fixing holes 10.degree. 10 are provided in both lower portions 9,9 of the main body 6, and these holes are elongated in the horizontal direction.

The main body 6 is fixed to the hawk legs 12, 12 in the front fork by the fixing means 11, 11 attached to the fixing holes 10, 10.
Fixed.

The fixing means 11 is comprised of the following in FIG.

That is, the clip band 14 that holds the hawk foot 12 from the back part 13 is U-shaped, and the both end sides 1 of this band 14 are U-shaped.
At 5, 15, locking holes 16, 1 are horizontally elongated holes.
6 have been established.

Reference numeral 17 denotes a rectangular parallelepiped-shaped band locking device, which has a locking hole 1.
6.16 Lugs 18, 18 on both sides 19.19
A fastening hole 23 is provided in the horizontal direction passing through from the front side 20 to the back side 21 and into which the fixing bolt 22 is screwed.

This lug 18 is an elliptical column projecting perpendicularly from the side surfaces 19, 19 of the band locking tool 17, and the cross section of the lug 1B is designed so that it fits into the locking hole 16 and its longitudinal direction is vertical. It is formed.

Further, the cross section of the base of the lug 18 has a circular shape with a diameter smaller than the width of the locking hole 16, and a locking groove 25, 25 is formed with a width thicker than the thickness of the upper and lower walls 24, 24 of the locking hole 16. There is.

Next, the hawk leg 1 is inserted between the lower part 9 of the main body and the hawk leg 12.
The fixing piece 27 that holds the front part 26 of the hawk leg 2 is made by bending a band plate into a U-shape. Groove 30.3
0 is provided, and the vertical plate 31 is provided with an insertion hole 32 for the fixing bolt 22.

Therefore, in order to fix the main body 6 to the hawk legs 12, 12, first attach each clip band 14 from the back surface 13 of the hawk leg 12 while pinching it at both end sides 15, 15, and then attach it to the fastening hole 23.
Once the band locking tool 17 is raised 90 degrees so that it is vertical,
The lugs 18, 18 are fitted into the locking holes 16, 16, and in that state, the band locking tool 17 is returned to its original state so that the fastening hole 23 is horizontal.

In this way, the upper and lower walls 24° 24 of the locking hole 16 are connected to the locking groove 25.
, 25, and in this state, the clip band 14 will not come off from the band locking tool 17.

Next, while sandwiching the band locking tool 17 between the upper plate 2B and lower plate 29 of the fixing piece 27, insert the concave grooves 30, 30 into the hawk foot 1.
2, the fixing bolt 22 is inserted into the fixing hole 10 and the insertion hole 32, and is screwed into the fastening hole 23.

When the fixing bolts 22 are tightened in this state, the hawk legs 12 are connected to the front part 26 by the clip bands 14 from the back part 13, respectively.
The main body 6 is then sandwiched between the fixing pieces 27 and fixed to the hawk legs 12, 12.

In this case, since the fixing holes 10, 10 are horizontally elongated holes, the fixing means 1 should be adjusted according to the distance between the hawk legs 12, 12.
It can be installed by adjusting the 1 and 11 positions.

Also, the vertical position of the caliper brake 1 can be adjusted using the fixing means 1.
This is possible by moving and fixing the position 1.11 along the hawk legs 12, 12.

As described in detail above, according to the present invention, the caliper brake 1, which cannot be attached using a conventional support device, can be mounted without changing the shape of the brake 1 and the fork feet 12, 12, and without any processing means on the fork shoulders. It is convenient because it can be easily attached and detached without having to do any work, and the vertical position of the caliber brake 1 can also be adjusted by connecting the fixing means 11 to the hawk foot 12,
This can be easily and conveniently done by sliding it up and down along the line 12.

In addition, the caliper brake 1 can be easily attached and detached, and at the same time, the caliper brake 1 is firmly supported by the fork legs 12, 12, so that its function as a brake is fully demonstrated, and it satisfies the above-mentioned legal requirements. The actual benefits are significant.

Further, the main body 6 has a simple structure, and this combined with the fact that there is no need to change the shape of the hawk legs 12, 12, etc. of the caliber brake 1, has great economical value.

In particular, in the present invention, since the arch-shaped main body 6 is integrated,
The main body 6 can be firmly attached to the front fork, and therefore the attachment strength of the caliber brake 1 to the bicycle can be increased.

In addition, in the fixing means 11, a pair of locking holes 16, 16 are formed in the shape of elongated holes in the front and rear direction, passing through the clip band 14 in the horizontal direction, so that a pair of locking holes 16, 16 are formed in the shape of elongated holes in the front and rear direction. Locking holes 1 are provided on both sides of the band locking tool 17 located
A pair of lugs 18 and 18 are provided which are removably inserted into the clip bands 6 and 16 and are removably engaged with the distal end side of the clip band 14 by making the longitudinal direction of the distal end side vertical. For example, even if the fixing bolt 22 in the fixing means 11 is loosened, the engagement between the lugs 18, 18 of the band locking tool 17 and both ends of the clip band 14 will not be released. There is almost no possibility that the fixation of the front fork at the lower side to the left and right fork legs 12, 12 will be accidentally released, and the lugs 18, 1B and clip band 14
There is no need to separately provide a member to prevent disengagement with the distal end side.

Furthermore, fixed poles at the bottom of both sides of the main body 6) 22, 2
Since the fixing holes 10, 10 through which the fixing means 11 and 2 are inserted are shaped like horizontal long holes, the position of the fixing means 11, 11 can be adjusted in the lateral direction according to the distance between the hawk legs 12, 12 of the front fork. , the main body 6 can be reliably and satisfactorily attached to the front fork.

[Brief explanation of drawings]

Figure 1 is a front view of this device, Figure 2 is a side view, Figure 3 is a plan view, Figure 4 is a front view of the main body as seen from arrow A-A in Figure 2, and Figure 5 is a fixed view of the device. FIG. 3 is an exploded perspective view showing how to assemble the tool. 1... Caliber brake, 5... Support shaft, 6... Main body, 8... Support hole, 1
0,10...Fixing hole, 11.11...
Fixing means, 12, 12...Hawk foot in front fork.

Claims (1)

[Scope of utility model registration request] A support hole is provided in the center of the upper part of the integrated arch-shaped main body to support the support shaft of the caliber brake, and a pair of left and right holes are provided to fix the lower parts of each side of the main body to the upper parts of the left and right fork legs of the front fork. A fixing means is provided, the fixing means is
A clip band that holds the Hawk's legs from behind and has a U-shape in plan view and has a pair of locking holes in the shape of long holes in the front and back directions formed at both ends thereof in the lateral direction, and both sides of the clip band. It has a pair of lugs that are arranged between the tip parts and are inserted and removably inserted into the locking holes on both sides, and the longitudinal direction of the lug tip side is vertical, so that the lugs are attached to the tip side of the clip band. A band locking device is detachably locked, and the band locking device is externally fitted onto the band locking device from the front side. A fixing piece that comes into contact with the front of the hawk leg, and a fixing bolt that fixes each lower part of the main body to the hawk leg by being inserted from the front side through each side of the lower part of the main body and the fixing piece and screwed to the band locking device. A support device for a bicycle brake, characterized in that the fixing holes at the lower portions of both sides of the main body, into which the fixing bolts are inserted, are in the shape of horizontally elongated holes.