JPH0322065Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial field of application This invention is a bicycle bell that rings by the swinging operation of a control lever that is attached near the handlebar grip of the bicycle and projects outside the bicycle body. Regarding bells.

Conventional technology Conventionally, this type of bell has two types: a pull bell type, in which a sector gear is provided on the operating lever, and a hammer with rollers supported at both ends is attached to a shaft that rotates following the reciprocation of this gear; There is a bell-type bell that is supported and vibrates back and forth by the swinging of an operating lever. The present invention belongs to the latter category.

Problems to be solved by the invention The hammer is actuated by the deflection and restoring of the spring as described above, but since the amplitude of the hammer is small, a strong spring is used to make a loud sound. Since the stored force and restoring force of the spring are directly transmitted to the operating lever, its use has the disadvantage of requiring large force and quick operation. For this reason, it has been desired to improve the bell so that it can be operated at the hand of a bicycle, making it easier for anyone to use.

Means to Solve the Problems Therefore, the present invention has a bell body in which two bowl-shaped vessels are connected facing each other via a center shaft, and a hammer that strikes the inner surface of the vessel, and a restoring spring. A bicycle bell is provided with an operating lever for reciprocating a hammer, and the tip of the operating lever protrudes outside the bell body so as to be swingable, and the bicycle bell is opposite to the fulcrum shaft of the operating lever with the center shaft in between. A pivot shaft is provided at a position where the operating lever and the other operating levers A large diameter hole is provided at the end so that it reciprocates across the straight line connecting the fulcrum shaft of the operating lever and the pivot shaft of the hammer holder as the operating lever swings, and overlaps with this large diameter hole. A spring latching hole is provided at the base of the hammer holder, and the base end of the spring whose free end is latched to the spring latching hole is fixed to the fulcrum shaft of the operating lever or its vicinity. It provides a bell for use.

Function As described above, the present invention provides a pivot shaft at a position opposite to the fulcrum shaft of the operating lever across the center shaft, and the base of the hammer holder, which has a hammer attached to the tip, can be freely rotated on this pivot shaft. Since the bell is pivotally mounted, the necessary sound volume can be obtained even if the amplitude of the hammer is increased and a spring with a small force is used, and the bell can be used without requiring any force for operation.
In addition, the impact of the hammer is caused by the position of the large diameter hole that rotates as the operating lever swings being on the straight line connecting the fulcrum shaft of the operating lever and the pivot shaft of the hammer holder, that is, beyond the dead point. The free end of the spring, which had previously stored force in the direction of deflection, is now able to move in the direction of restoration within the large diameter hole,
This causes a quick motion only in the hammer holder, causing the hammer to perform a striking motion.

Embodiments Examples of the present invention will be described below with reference to the drawings.

In the figure, F is a center shaft 1 with two bowl-shaped vessels AB protruding from the center of the inner surface of one vessel B.
The bell body 2 is formed into a round hollow body by being connected facing each other via One mounting bracket 4 is caulked along the mounting bracket 2 and is loosely fitted to a fulcrum shaft 5 which is caulked to the lower part of the mounting bracket 2 in parallel with the center axis 1, and the operating part 6 formed at one end is moved out of the vessel. A sickle-shaped spring 7 that protrudes so as to be swingable, and stores restoring force by winding the center shaft 1 and hooking one end of the restoring spring 7 to the inner surface of the container B. 8 is a pivot shaft with a head that is screwed into the upper part of the mounting bracket 2 at a position opposite to the fulcrum shaft 5 of the operating lever 4 with the center shaft 1 interposed therebetween; 9 is a pivot shaft with a head attached to the pivot shaft 8; is loosely fitted and superimposed on the operating lever 4, and together with the lever, a bowl-shaped vessel B is formed.
A hammer holder 10 is provided at the tip of this hammer holder 9, which can freely swing along the plane direction of the hammer holder 9.
A pair of upright parts 11 stand up to face each other along the swinging direction of the holder.
A square through hole 12 formed in common with each other in
A hammer 13 is inserted through the hammer holder 11 with both ends protruding from the through hole 12 so as to be able to slide freely in the swinging direction of the hammer holder.
The spring receivers 14 provided on the lower sides of the hammer 14 so as to face each other inwardly are supported at both ends by the spring receivers 13 and fitted between the pair of upright portions 10, so that the center of the hammer 11 is centered between the pair of upright portions. a counterbalancing spring adapted to return to a central position between 10 and 10;
Reference numeral 5 denotes a square large-diameter hole provided at the other end of the sickle-shaped operating lever 4, and this large-diameter hole 15 serves as a pivot point between the fulcrum shaft 5 of the operating lever 4 and the pivot shaft of the hammer holder 9 as the operating lever 4 swings. It is provided at a position where it reciprocates across the straight line connecting 8. Reference numeral 16 indicates a spring retaining hole provided at the base of the hammer holder 9 so as to overlap with the large diameter hole 15, and 17 indicates the large diameter hole 15.
The free end 17a inserted into the spring is hooked into the spring hooking hole 16, and the base end is wound around the fulcrum shaft 5 of the operating lever 4. Reference numeral 18 has an arcuate portion facing the lower part of the mounting bracket 2, and has a convex claw 18' at the upper end and a set screw 19 at the lower end to fix the bell to the handlebar H of the bicycle as shown in FIGS. This is the mounting bracket. This bicycle bell is attached to the handlebar H using the mounting fittings 2 and 18 in an upright position, and is configured to ring when the operating section 6 is pressed down.

The connection of the vessel AB via the center shaft 1 is as follows:
A recess 2 formed in the diametrical direction at the tip of the center shaft 1
0 and the screw insertion hole 21 provided in the center of the container A.
This is done by fitting with a convex portion 22 provided opposite to the inner surface side mouth edge of the center shaft 1, and screwing a screw 24 which is inserted into the insertion hole 21 and screwed into a screw hole 23 bored into the end surface of the center shaft 1. The fitting of the concave portion 20 and the convex portion 22 causes vibrations when the bell is rung.
The screw 24 that fastens AB is configured to be difficult to loosen.

With this bell configured as described above, when the operating section 6 is pushed down from the state shown in FIG.
swings counterclockwise in the figure, and when the large-diameter hole 15 that rotates at the same time reaches a straight line connecting the fulcrum shaft 5 and the pivot shaft 8, it fits into the hole 15 as shown in FIG. The free end 17a of the spring 17 is pushed down into the spring latching hole 16 of the hammer holder and is inserted into the large diameter hole 15.
After approaching one side of the lower side and generating maximum storage power,
After crossing the above-mentioned straight line, movement within the large diameter hole 15 becomes possible as shown by the phantom line in the figure, and the sixth
The hammer holder 9 swings in a quick motion due to the restoring force of the spring 17 up to the maximum amplitude angle shown in the figure, causing the hammer 11 to strike.
Moreover, when the push-down of the operating part 6 is released at that point, the operating lever 4 swings due to the restoring force of the restoring spring 7, and just before reaching the restoring state shown in FIG. A blow from the hammer 11 is caused.

Effects of the invention According to the invention configured as described above and used as described above, as described above, even if the amplitude of the hammer is increased and a spring with a small force is used, the hammer does not have a bell. Because it can produce the required volume, it can be operated more easily than conventional bells. In addition, the impact of the hammer is caused by the position of the large-diameter hole that rotates as the operating lever swings being on the straight line connecting the fulcrum shaft of the operating lever and the pivot shaft of the hammer holder, that is, beyond the dead point. , the free end of the spring, which had previously stored force in the direction of deflection, is now able to move in the direction of restoring within the large diameter hole, thereby causing a quick motion only in the hammer holder, causing the hammer to Since a striking action is generated, the spring force required for actuation of the hammer and its release are always constant even with a small force and a relatively slow operation, making this type of bicycle bell easy to use. This has a practical effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a partially cutaway front view with one vessel body removed, Fig. 2 is a partially cutaway vertical side view, Fig. 3 is an exploded perspective view, and Fig. 4 is a partially cutaway front view with one vessel body removed. Figure 5 is a partially cutaway front view showing the hammer lever in its non-operating state, Figure 5 is a partially cutaway front view showing the hammer lever in its quick motion state, and Figure 6 is a partially cutaway front view showing the hammer lever in its quick motion. FIG. F... Bell body, A, B... Body, 1... Center shaft, 2... Mounting bracket, 3... Notch, 4...
...Operation lever, 5...Fully shaft, 6...Operation unit, 7
... Restoration spring, 8 ... Pivoting shaft, 9 ... Hammer holder, 10 ... Standing part, 11 ... Hammer, 1
2...Through hole, 13...Spring receiver, 14...Balance spring, 15...Large diameter hole, 16...Spring retaining hole,
17... Spring, 17a... Free end, 18... Mounting bracket, 19... Set screw, 20... Recess, 2
1...Insertion hole, 22...Protrusion, 23...Screw hole,
24...screw.

Claims (1)

[Scope of claims for utility model registration] (1) Two bowl-shaped vessels with a center shaft 1 interposed between them
Inside the bell body F, which connects AB facing each other,
a hammer 11 that strikes the inner surface of the vessel A;
A bicycle bell is provided with an operating lever 4 that is equipped with a restoring spring 7 and reciprocates a hammer 11, and one end of the operating lever 4 protrudes outside the bell body so as to be able to swing freely. A pivot shaft 8 is provided at a position facing the fulcrum shaft 5 of the lever 4, the base of a hammer holder 9 is rotatably connected to the pivot shaft 8, and the hammer 11 is pivoted to the tip of the hammer holder 9. While the operating lever 4 is attached along the moving direction,
A large diameter hole 15 is provided at the other end so as to reciprocate across the straight line connecting the fulcrum shaft 5 of the operating lever 4 and the pivot shaft 8 of the hammer holder 9 as the operating lever 4 swings; A spring latching hole 16 is provided at the base of the hammer holder 9 so as to overlap with the large diameter hole 15, and the base end of the spring 17, whose free end 17a is latched in the spring latching hole 16, is attached to the operating lever 4. A bicycle bell, characterized in that it is fixed on or near a fulcrum shaft 5. (2) The hammer holder 9 is provided at its tip with a pair of standing parts 10 facing each other along the swinging direction of the hammer holder 9, and the both ends are inserted into the through holes 12 formed in the standing parts 10, respectively. The hammer 11 is slidably inserted through the hole 12 so as to protrude outside the hole 12, and the hammer 1
2. The bicycle bell according to claim 1, further comprising a balance spring 14 adapted to return the center of the bell to the center position between the pair of upright portions 10.