JPH01275292A - Manually operated lever for two-wheel barrow - Google Patents

Abstract

PURPOSE: To prevent the generation of accident that a finger is caught even in the case of any operation with one hand by forming a lever of plural mechanical elements capable of being locked at various relative position so as to provide various shape. CONSTITUTION: A brake lever is formed of a first mechanical element 8 having a hole 9 for insertion of a shaft to be fitted to a bracket and a second mechanical element 10 to be locked with a part of the first mechanical element 8, and formed with opposite abutment surfaces 11, 12. A recessed part 14 of the abutment surface 11 has a nearly egg-shaped cross section, and a projection 13 of the abutment surface 12 to be fitted into the recessed part 14 has a corresponding cross section, and the first and the second mechanical elements 8, 10 can be locked with each other by inserting a screw part 15 extended from the projection 13 and threadedly attaching a nut 15a therewith from the first mechanical element 8 side. Lock is performed in the condition expressed with a figure, or performed by rotation at 180 degrees, and shape of the brake lever is determined so as to alternately prevent the generation of accident that a finger is caught by the operation of a brake lever.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a manual operating lever provided on the handle of a two-wheeled vehicle such as a bicycle or motorcycle, and more particularly to a brake operating lever.

(Prior Art) When driving a bicycle or motorcycle, there are times when you want or have no choice but to use one hand to steer the steering wheel and at the same time operate the pond. For example, in the case of motorcyclists, they may operate the brake lever and push buttons for operating auxiliary equipment at the same time as operating the steering wheel with one hand; In the case of a rider on a bicycle attached to a bicycle, he or she may operate the brake lever and gear shift lever at the same time as steering the handlebar with one hand. When performing several operations like this with one hand, either the index finger and middle finger, or the ring finger and little finger are usually used to operate the two-wheeled vehicle. No matter which set of fingers you use, while holding the steering wheel with two fingers, use the remaining two fingers to operate the brake lever, and use your thumb to control the push buttons for operating auxiliary equipment, the gear shift lever, etc. This is a situation where equipment is often operated.

Figures 1 and 2 of the attached drawings show the above-mentioned situation, and show the situation on an off-road or motocross bicycle in which the brake lever is approximately parallel to the grip portion of the handlebar. There is.

That is, FIGS. 1 and 2 show conventional examples, and
Brake lever 2 on the right grip part 1 of the handlebar
Only shown. This brake lever 2 is pivotally attached to a bracket attached to a handle via a shaft pin 3.

In addition, the handle and grip part 1 have a force that is drawn as a straight line.This seems to be for off-road use (
:This is normal for a J motocross bicycle.

In the maneuvering technique shown in FIG. 1, the pair of index finger 4 and middle finger 5 of the passenger's hand M is used to operate the brake lever 2, and the remaining pair of ring finger 6 and little finger 7 is used to operate the clip. It is used to hold 1. In such a state, when the brake lever 2 is tightened, the ring finger 6 and the little finger 77 will be pinched.

On the other hand, in the maneuvering technique shown in FIG. I'm holding it. In this case, the pair of index finger 4 and middle finger 5 will be caught between the brake lever 2.

As you can see from Figures 1 and 2, the pair of ring finger and little finger (first
Even if you operate the steering wheel with the index and middle fingers (Figure 2), or operate the conventional brake lever with the remaining fingers,
It is dangerous for the pair of fingers operating the steering wheel to get caught between the steering wheel and the brake lever.

(Structure of the Invention) The present invention has been made in order to solve the above-mentioned problems, and provides a manual operation lever that does not cause fingers to get caught, no matter how it is operated with one hand. This is the purpose.

According to the invention, the aforementioned object is achieved by constructing a manually operated lever with a plurality of elements that can be locked in different relative positions so that the lever assumes different shapes. Each shape is determined to suit the maneuvering technique.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The brake lever according to the present invention differs from the conventional example shown in FIGS. 1 and 2 in that it is composed of a plurality of elements (two elements in the embodiment shown in FIG. 3) that can be interconnected with each other. It is different from In particular, in FIG. 3, the brake lever comprises a first element 8 having a hole 9 through which an axle pin 3 for pivotal attachment to a bracket provided on the handlebar is inserted; It is composed of a second element 10 that is fixed to a portion. The first and second elements 8.10 (j) are respectively formed with contact surfaces 11.12 facing each other, and the contact surfaces 12 have recesses 14 formed in the same manner as the contact surfaces 13. A protrusion I3 is formed.

As is clear from FIG. 3a, the recess I4 has a substantially oval cross section with the short side of the rectangular shape being substantially semicircular;
The protrusion 13 that fits into the recess 14 also has a corresponding cross-sectional shape. The first element 8 and the second element 10 are formed by inserting the threaded part 15 extending further outward from the protrusion 13 into the hole 16 formed in the bottom of the recess I4, and then
By screwing the nuts 115a onto the threaded portion I5 from the side, they can be locked together. In locking in this way, it may be locked in the state shown in FIG. 3, or the second element 10 may be locked after being rotated 180 degrees from the state shown in FIG. . Regardless of which state is locked, the first and second elements 8
．． 10 is shaped so that a shape suitable for operating the brake lever with the pair of index finger 4 and middle finger 5 and a shape suitable for operating the brake lever with the pair of ring finger 6 and little finger 7 are obtained alternately. is determined. That is, FIG. 4 shows a case where the second element 10 is locked to the first element 8 in the first state, and in this case, the pair of index finger 4 and middle finger 5 is assigned to operate the brake lever. However, due to the shape of the second element 10, the pair of ring finger 6 and little finger 7 that grips the grip portion 1 will not be pinched even when the brake lever is tightened. The first state of the second element 10 shown in FIG. 4 is obtained by rotating the second element 10 shown in FIG. 3 by 180 degrees from the state shown.

=7- On the other hand, if the second element 10 is locked to the first element 8 in the state shown in FIG. 3, the shape shown in FIG. 5 will be obtained. In other words, the second element 10 has a relationship exactly opposite to the fourth element 10 shown in FIG. In this case, the pair of index finger 4 and ring finger 6 will not be pinched.

FIG. 6 shows another embodiment of the present invention, in which the brake lever is connected to three elements 11, 2, 3, 17, 18, .
It consists of 19 pieces. These three elements 17.18.
19 are connected to the second element 18 by an axle pin 20, 21) and are respectively locked in appropriate relative positions by suitable retaining means (not shown). In the embodiment shown in FIG. 6, since the shaft pin etc. are exposed in the part that comes into contact with the hand, it is necessary to cover it with a semi-flexible rubber sleeve as shown by the imaginary line in FIG. is desirable.

It should be noted that the present invention has other modifications that can be considered; in short, the part of the handle to which the fingers are directed, that is, the second element 1o in the first embodiment; It would be good if the first, second, and third elements 17, 18, and 19 could have a shape that would not pinch the set of fingers gripping the handle when operating the lever.

[Brief explanation of the drawing]

1 and 2 are explanatory diagrams showing two ways of operating a conventional brake lever, and FIG. 3 is a partially cutaway exploded view of a brake lever according to the first embodiment of the present invention. 3rd a
The figure is an end view of the first element seen along the direction of ■a in FIG. FIG. 6 is a diagram showing a second embodiment of the present invention. 8...1st element, 10...2nd element, ++
, +2...Abutting surface, I3...Protrusion, 14...Recess, 15...Threaded portion, 15a...Nut. rlG, 1 "lG, 2

Claims (1)

Claims: 1) A manually operated lever for a two-wheeled vehicle, characterized in that the lever is comprised of a plurality of elements that can be locked in various relative positions so that the lever assumes various different shapes. 2) The device according to claim 1, wherein the plurality of elements include a first element and a second element, one of which constitutes an extension with respect to the other.
The contact surface is formed on the first and second elements, and one element contacts the other element in either of two states that are different in the direction of rotation by 180°. A manual operation lever characterized in that it is locked against the user. 3) The manual operating lever according to claim 2, wherein the first and second elements are connected by screwing. 4) The device according to claim 1, characterized in that the plurality of elements are connected to each other by pivot pins so as to be able to move freely, and are locked at appropriate relative positions. Manually operated lever. 5) The manual operating lever according to claim 4, characterized in that the plurality of elements connected to each other are covered with a flexible sleeve. 6) A manual operation lever according to any one of claims 1 to 5, characterized in that the manual operation lever is a bicycle brake lever.