JPH041035Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a brake lever device, and more particularly, to a brake lever device that allows two or more brake devices of a tandem bicycle to be simultaneously operated with one brake lever device. Relating to a lever device.

(Prior Art) The brake lever device according to the present invention is particularly effective in tandem bicycles. A tandem bicycle is a bicycle that seats two or more people, as shown in the schematic diagram in Figure 4, and for this purpose, each bicycle is equipped with multiple handles, saddles, crank gears, etc. It is something. Since two or more people are riding in the vehicle, the weight and kinetic energy also increase, so it is necessary to improve braking performance from safety considerations. Therefore, a tandem bicycle has three caliper brakes: a front caliper brake A, a rear caliper brake B, and a rear band brake C (hereinafter referred to as front caliper A, rear caliper B, and rear band C) as shown in the diagram.
It is customary for vehicles to be equipped with two braking devices.
These brake devices A, B, and C are linked to brake lever devices a, b, and c, respectively, by Bowden wires (not shown). As shown in a plan view in FIG. 3, each of the brake lever devices a, b, and c has an opening 1 formed at its tip for passing an inner wire through, and the opening 1 has an outer receiving part. A lever housing 2 comprising a lever housing 2 and configured to lock the outer wire 12 is fixed to the handle. A lever 4 is rotatably supported on the lever housing 2 via a support shaft 3.
An inner wire engaging element 5 is rotatably supported internally in parallel with the inner wire engaging element 5. and the inner wire engager 5
is provided with a general inner wire engaging portion 5b' at approximately the center and perpendicular to its axis, and the inner wire 11, which is engaged with the outer receiver 18 and extends from within the outer wire 12, extends inside the lever housing 2. The inner wire engaging portion 5b' is configured to lock the end terminal 11' of the wire through the inner wire engaging portion 5b'. Therefore, according to this brake lever device, one brake lever device is linked with one brake device via one Bowden wire. Therefore, even if only the person operating the front handle noticed the danger and operated brake lever devices a and b, only the front caliper A and rear caliper B would operate, making the tandem bicycle equipped with three brake devices. Similarly, even if the person holding the rear handlebar notices the danger and provides the brake lever device c, only the rear band C will operate. There was a need for a brake lever device that would allow one lever to operate two brake devices in case of danger.

Therefore, Jikosho developed a brake lever device that can be attached to an ordinary bicycle, and which allows you to apply the front and rear brakes with a lever on one side.
The method described in Publication No. 48-39797 has been proposed.
In this device, an opening is formed at the tip of the brake housing to fix a bracket having two outer receivers, and the brake lever is provided with two receiving holes for respectively locking two inner wire engagers. be.

(Problem that the invention aims to solve) However, this brake lever device has a special shape, and manufacturing a new one specifically for this would be expensive, and it would be difficult to install it on an existing tandem bicycle. The existing brake lever devices a, b, and c had to be removed and replaced with this new special device, which was expensive and inconvenient to remodel.

Furthermore, since the lever device described above brakes the front and rear brakes differentially, each inner engaging element is not locked at a position equidistant from the spindle, so the brakes cannot be applied at the same time when braking. This was particularly unsuitable for tandem bicycles where simultaneous operation of the brakes is desirable.

Therefore, in view of the above, the present invention provides a brake lever device that uses the main parts of a general-purpose brake lever device for one wire, but is capable of pulling two or more wires. The first object is to provide a brake lever device that can simultaneously operate two or more brake devices with one brake device.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention pivots the operating lever 4 on the lever housing 2 via the spindle 3 so as to be able to swing freely, and in the axial direction of the spindle 3. A bracket 6 having a plurality of outer receiving parts 8, 8 at separate positions is fixed to the front opening 1 of the lever housing 2 in parallel with the support shaft 3, while the end terminals 11 of the plurality of inner wires 11, 11 are fixed to the front opening 1 of the lever housing 2. The single inner wire engager 5 is provided with a plurality of engaging portions 5a', 5a' for locking the outer receiving portions 8, 11' so as to be opposed to each other on the axial extension line of each of the outer receiving portions 8, 8. A plurality of outer wires 12, 12 of a plurality of Bowden wires are pivotally supported on the operating lever 4 in parallel with the shaft 3 and linked to the brake device.
are received and locked in the outer receiving parts 8, 8, and the inner wires 11, 11 are inserted from within the outer wires 12, 12.
A configuration is adopted in which the wires extend and their end terminals 11', 11' are locked to the inner wire engaging portions 5a', 5a'.

(Function) By employing the above configuration, when the lever 4 is operated, the lever 4 swings about the support shaft 3, and the plurality of inner wires 11 linked to the inner wire engager 5 are connected to the outer wire 12, respectively. On the other hand, a plurality of brake devices provided at the other end of the vehicle are towed and actuated simultaneously.

Therefore, for example, if this brake lever device is
When the brake lever device b in the schematic explanatory diagram is linked to the rear caliper B and the rear band C, the operator of the front handle can operate three brake devices by himself.

(Example) A preferred example of the present invention will be described below based on the drawings. FIG. 1 is a plan view showing the first embodiment, and as shown in the figure, a lever housing 2 having an opening 1 formed at the tip for inserting an inner wire is attached to a lever housing 2 through a support shaft 3 so as to be swingable. A pivoted lever 4 is supported by an inner wire engager 5 parallel to the support shaft 3.
In the structure of rotatably supporting the third
This is similar to the conventional general-purpose brake lever device shown in the figure. A bracket 6 is attached to the opening 1.
is fixed parallel to the support shaft 3. More specifically, the bracket 6 is a horizontally elongated metal plate with outer holder insertion holes 7a and 7b provided at both ends, and one outer holder insertion hole 7a is threaded. The outer receiver 8a is screwed here. The outer receiver 8a has an inner wire insertion hole 8' in its axis, as shown in the enlarged sectional view in FIG.
Moreover, it is a well-known bolt-shaped member equipped with an adjusting screw 9a. Furthermore, the adjustment screw 9a of the outer receiver 8a is inserted into the other outer receiver insertion hole 7b of the bracket 6.
Outer receiver 8 equipped with a lock nut 9b instead of
b is inserted or screwed together, and the outer receiver 8b
is screwed into a nut 10 provided in the opening 1, and the bracket 6 is fixed in the opening 1 by the nut 10 and the lock nut 9b.

Further, the inner wire engaging element 5 rotatably supported by the lever 4 is projected in the same direction as one outer receiver 8a, and the above-mentioned inner wire engaging member 5 is provided at the projecting portion 5a and the portion 5b inside the lever 4, respectively. Inner wire 1 is placed on the axial extension line of each outer receiver 8a, 8b.
General engaging portions 5a', 5a' for locking the end terminals 11', 11' of 1, 11 are provided.

Thus, the brake lever device of this first embodiment has an outer receiver 8 provided on the bracket 6.
Outer receiving parts 8 and 8 are formed at positions separated in the axial direction of the support shaft 3 at a and 8b, and one inner wire 11 extending from inside the outer wire 12 of each Bowden wire is exposed to the outside of the lever housing 2. , the other inner wire 11 is passed through the lever housing 2, and each end terminal 11' is configured to be engaged with the corresponding inner wire engaging portion 5a', 5a'.

Next, FIG. 2 is a plan view showing a second embodiment of the present invention. Similar to the first embodiment, while retaining common features with the conventional brake lever device, a support shaft 3 is provided in the opening 1. A bracket 6 is fixed in parallel with.
In the drawings, the same reference numerals as in the first embodiment indicate the same parts. More specifically, the bracket 6 is also a horizontally elongated metal plate having outer receiver insertion holes 14, 14 at both ends and a bracket fixing hole 15 at the center. The insertion holes 14, 14 are threaded, each having an adjustment screw 9a similar to that of the first embodiment, and a bolt-shaped outer receiver 8a is screwed therein. Further, the bracket 6 has a bolt 16 in the opening 1,
It is fixed to the opening 1 with a nut 10.

The inner wire engaging element 5, which is rotatably supported by the lever 4, has both ends protruding, and each of the protruding parts 5a, 5a has the outer receiver 8a, respectively.
An inner wire engaging portion 5a' that locks the end terminal 11' of the inner wire 11 is provided on the axial extension line of the inner wire 11.

Thus, in the brake lever device of the second embodiment, each outer receiver 8a constitutes an outer receiving part 8, which receives and locks an outer wire 12, and an inner wire extending from inside each outer wire 12. 11 is exposed outside the lever housing 2, and its end terminal 11' is connected to each corresponding inner wire engaging portion 5.
It is configured to be locked at point a'.

In both embodiments, a nut 10 is used to fix the bracket 6 to the opening 1, but if the opening 1 is threaded, this nut 10 is not necessary. Further, in the second embodiment, bolts 16 and nuts 10 are used to fix the bracket 6, but in the first embodiment, the outer receiver 8b is also used as a bolt, so it can be said to be rational. Further, in both embodiments, one brake lever device is used to actuate two brake devices, but it goes without saying that a device in which three or more brake devices are actuated also belongs to the present invention.

(Effect of the invention) According to the invention having the above configuration, a plurality of simple outer receiving portions 8 are provided while using the main parts of the brake lever device as shown in FIG. 3, which has been most commonly used. By simply preparing parts such as the bracket 6, the inner wire engaging member 5 provided with a plurality of engaging portions 5a', and bolts and nuts, a new brake lever device for a special tandem bicycle can be manufactured. Further, even if the lever device is an existing lever device, it can be easily modified by simply replacing the above-mentioned parts, and in any case, it can be provided at a low cost.

Furthermore, in the brake lever device of the present invention, since the distances from the plurality of outer receiving portions 8 of the bracket 6 to each engaging portion of the single inner wire engager 5 are the same, one brake lever device can handle two parts. It is possible to operate the brake devices at the same time, and is particularly suitable for use in tandem bicycles where simultaneous operation of the brakes is desirable, and has excellent effects in increasing safety.

[Brief explanation of the drawing]

1 and 2 show an embodiment of the brake lever device according to the present invention, FIG. 1 is a plan view of the first embodiment and an enlarged sectional view of the outer receiver, FIG. 2 is a plan view of the second embodiment, FIG. 3 is a plan view showing a conventional brake lever device, and FIG. 4 is a schematic explanatory view showing a tandem bicycle. 1...Opening, 2...Lever housing, 3...
... Support shaft, 4 ... Lever, 5 ... Inner wire engagement element, 5a ... Projection part, 5a' ... Inner wire engagement part, 6 ... Bracket, 8 ... Outer receiving part, 1
1...Inner wire.

Claims (1)

[Scope of utility model registration request] An operating lever 4 is swingably supported on the lever housing 2 via a support shaft 3, and a bracket 6 having a plurality of outer receiving portions 8, 8 at positions apart from each other in the axial direction of the support shaft 3 is attached to the support shaft. A plurality of engaging portions 5a', 5a' are fixed to the front opening 1 of the lever housing 2 parallel to the shaft 3, and on the other hand, engage the end terminals 11', 11' of the plurality of inner wires 11, 11. A single inner wire engager 5 provided to face each other on the axial extension line of each of the outer receivers 8, 8 is pivotally supported by the operating lever 4 in parallel with the support shaft 3, and a plurality of inner wire engagers 5 connected to the brake device are Bowden wire outer wire 1
2 and 12 are received and locked in the outer receiving parts 8 and 8,
Inner wire 1 from inside the outer wires 12, 12
1, 11 are extended and their end terminals 11', 11' are locked to the inner wire engaging portions 5a', 5a'.