JPH0249188Y2 - - Google Patents

Description

[Detailed explanation of the idea] Industrial applications The present invention relates to a bell attached to a bicycle.

BACKGROUND ART Conventional bicycle bells include a substantially saucer-shaped metal base with a support shaft protruding from the center of the inside, and a support shaft with a male spiral at the tip, and a support shaft that is screwed onto the support shaft of the base for support. A metal dome part located at the center of the inner side and having a bearing provided with a female spiral, and a metal dome part provided inside the base part and the dome part for striking the dome part. It consisted of a rotary hammer and a bell-striking mechanism equipped with a lever for rotating the hammer. After a bell striking mechanism is attached to the base, the support shaft of the base and the bearing of the dome are screwed together for assembly.

Problems that the invention aims to solve In the above-mentioned conventional bicycle bell, each component is made of metal material, so rust may occur in each component after long-term use, or if the bicycle falls over, the metal components may become damaged. The support shaft of the bell is bent, and the base and dome portion come into contact with each other, resulting in the bell not ringing.

The object of the present invention is to provide a bell-striking mechanism, etc. that does not rust and has a support shaft that is difficult to bend.

Means for Solving the Problems In order to achieve the above object, the present invention has, for example, constructed the base 1 and the bell-striking mechanism from synthetic resin, and also constructed a structure that extends over the entire circumference of the outer surface 3 of the base 1. A locking portion consisting of a plurality of locking pieces 9 is provided in a protruding manner.

Function When an impact force is applied to the dome part 17 due to a fall of a bicycle, etc., the support shaft 4 connecting the base part 1 and the dome part 17 is made of elastic synthetic resin, so it curves, and the dome part 17 bends. While covering the side surface 3 of the base 1, the edge of the dome body 19 is tilted diagonally with respect to the base 1 and is locked to the locking pieces 9 (second
(see figure dashed line). Therefore, the dome portion 17 is
Since the support shaft 4 connecting the base part 1 and the dome part 17 is not bent beyond its limit, it will not be damaged. Furthermore, since the base 1 and the striking mechanism are made of synthetic resin, rust does not occur and durability is improved.

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

Figures 1 to 3 show a first embodiment of the present invention, with Figure 1 being a longitudinal front view, Figure 2 being a partially cut-away side view, and Figure 3 being a partially cutaway and internal view. FIG. 4 is a front view of the second embodiment, FIG. 5 is a vertical sectional view of the main parts of the third embodiment, and FIG. 6 is a plan view of the fourth embodiment. .

A first example will be explained.

As shown in FIGS. 1 to 3, the base 1 is made of synthetic resin and has a circular planar shape, and has a central portion inside the bottom 2 of the base 1.
A support shaft 4 provided to protrude upward from the periphery of the outer surface 3 of the base 1; and a first support shaft 4 protruding from the center of the inside of the bottom 2 of the base 1 and shorter than the support shaft 4. a protruding shaft 5; a second protruding shaft 6 that protrudes outward from a part of the base 1 that is shifted from the center of the inner side of the bottom 2 to the other side and is shorter than the first protruding shaft 5; and an outer surface of the bottom 2. a clip portion 7 provided on the handlebar of the bicycle for detachably fixing the clip portion to the handlebar of the bicycle;
A notch 8 provided on the second projecting shaft 6 side of the side surface portion 3 and a locking piece 9, which is a locking portion protruding from the outer periphery of the side surface portion 3, are integrally formed. Of the locking pieces 9, the locking pieces 9a, 9a located at both ends of the notch 8 are for preventing a lever 23 of a bell-striking mechanism, which will be described later, from shifting upward. The clip portion 7 is for attaching a bell to a bicycle handlebar, and is formed integrally with the base portion 1, and has a screw hole 11 in which a female spiral 10 is disposed in a portion thereof and a guide groove 12 are vertically bored therein. a root portion 13, extending in a ring shape from the root portion 13, and screwing into the female spiral 10 at the tip thereof;
In addition, a screw 14 that can be inserted into the screw hole 11 and a ring 16 provided with a guide piece 15 that can be inserted into the guide groove 12 are integrally molded. After the ring 16 is wrapped around the handlebar of the bicycle, the screw 14 is inserted into the screw hole 11 and screwed onto the female spiral 10, and then tightened and fixed. At this time, since the guide piece 15 and the guide groove 12 are provided, when the screw 14 is tightened, the guide piece 15 is inserted into the guide groove 12, and the lateral force applied to the screw 14 is reduced. The guide piece 15 serves to prevent the fixation with the handle from loosening.

As shown in FIG. 1, the dome part 17 for generating a bell sound has a substantially inverted dish shape with a circular planar shape having an inner diameter slightly larger than the outer diameter of the base part 1, and has a through hole 18 in the center. The dome body 1 is made up of a perforated metal dome body 19 and a synthetic resin bearing 21 which is integrally molded with a top plate 20 to form a substantially T-shape and has a fitting groove 21a at its axis.
After fitting the bearing 21 into the through hole 18 from the outside of the bearing 9, a fixing ring 22 is fitted to the outer circumference of the bearing 21,
The dome portion 17 and the bearing 21 are fixed together. The dome portion 17 is connected to the base portion 1.
and the support shaft 4 of the base 1.
The distal end and the fitting groove 21a of the bearing 21 are fitted and connected, and the distal end is removably attached to the base 1. Note that a convex line is formed on the outer periphery of the bearing 21, and a concave line is formed on the inner circumference of the fixing ring 22, and by engaging the concave line and the convex line, the bearing 21 and the fixing ring 22 are firmly fixed.

As shown in FIGS. 1 to 3, the bell-striking mechanism is disposed inside the base portion 1 and the dome portion 17, and is attached to the dome body 19 of the dome portion 17.
It is made up of a lever 23 projecting outward from the notch 8, a hammer 24 that hits the dome body 19, and an intermediate pinion 25 for transmitting the operation of the lever 23 to the hammer 24. It consists of

Each member of the above-mentioned bell striking mechanism will be described in detail.

The lever 23 has one end protruding outward from the notch 8 of the base 1 and formed into a knob 26, and the other end is formed into a rack 27, forming a substantially fan shape. It is rotatably supported by the second protruding shaft 6 and is urged in the horizontal direction by a spring 28 . The hammer 24 has its central portion rotatably supported on the support shaft 4 of the base 1, and is formed into a substantially arm shape slightly shorter than the inner diameter of the dome body 19, and has bell rings 24a at both ends thereof. , 24a, and a first pinion 29 is integrally formed on the lower center side. The intermediate pinion 25 is a second pinion 3 with a large diameter that meshes with the first pinion 29 of the hammer 24.
0 and a third pinion 31 with a small diameter that meshes with the rack 27 of the lever 23,
It is rotatably supported on a first protruding shaft 5. The bell-striking mechanism configured in this manner is such that when the lever 23 is rotated in the direction of the arrow a in FIG.
7. Third pinion 31 of intermediate pinion 25, second pinion 30 of intermediate pinion 25, hammer 24
The rotation is transmitted to the hammer 24 via the first pinion 29, and the rotation of the hammer 24 strikes the dome body 19 of the dome portion 17. In addition, in the above-mentioned bell-striking operation, the bell-striking rings 24a, 24a at both tips of the hammer 24 strike the protrusion 32 formed on the inner surface of the side portion of the dome body 19.
This is done by hitting it as it rotates.
Further, in FIG. 3, reference numerals 33 and 34 refer to the base 1
With a stopper that is integrally formed on the inside,
This is to prevent the lever 23 of the bell striking mechanism from colliding with the inner side surface of the base 1 and damaging the base 1.

In the bell of the first embodiment configured as described above, only the dome body 19 that produces the bell sound is made of metal, and the other base 1 and the bell-striking mechanism are made of synthetic resin. When a diagonal impact force is applied to the base 1, the support shaft 4 connecting the base 1 and the dome 17 is made of elastic synthetic resin, so it curves, and the dome 17 bends against the side surface 3 of the base 1. The dome body 19 is tilted diagonally with respect to the base 1 while being covered by the dome body 19, and the edges of the dome body 19 are locked by the locking pieces 9 (see the chain lines in FIG. 2). The dome portion 17 will not tilt any further with respect to the base portion 1, and therefore the support shaft 4 will not be bent beyond its limit and damaged. When the impact force is released, the support shaft 4 made of synthetic resin easily returns to its original state due to its elasticity. In addition, since the base 1 and almost the entire striking mechanism are made of synthetic resin, there is no rust.
Moreover, the durability is improved, and in addition, it has the effect of being able to produce a beautiful bell sound.

The one in FIG. 4 showing the second embodiment has a locking part that is
In place of the locking pieces 9 of the first embodiment, the base 41
A protrusion 43 having a rectangular cross section extends in a band shape over the entire circumference of the outer surface portion 42. The protrusion 43 serving as the locking portion is characterized in that it is stronger than the locking piece 9 of the first embodiment.

In the one shown in FIG. 5 showing the third embodiment, the locking part is
In place of the locking pieces 9 of the first embodiment and the protrusions 43 of the second embodiment, a hook strip 53 having an L-shaped cross section extends in a band shape over the entire circumference of the outer surface portion 52 of the base 51.
This is what I did. And the hook 5 which is the locking part
3 is more durable than the locking piece 9 of the first embodiment, and when the dome body 54 is tilted with respect to the base 51, the dome body 54 is inserted into the recess 55 formed by the outer surface portion 52 and the hook strip 53. Because the edges fit together,
This is characterized in that the edge of the dome body 54 does not exceed the hook 53 and become even more strongly inclined.

The fourth embodiment shown in FIG. 6 has a radial protective band 62 made of synthetic resin attached to the dome body 61. For example, this protective band is added to the first to third embodiments. 62 can be attached to the bicycle to reduce the impact received when the bicycle falls.

Note that the locking portion of the present invention is not limited to those in the first to third embodiments described above, and may have other shapes or structures, and other members are not limited to those in each of the above embodiments. It is not something that will be done.

Effects In the present invention, the base and the bell striking mechanism are made of synthetic resin, and a locking part is provided protruding all around the side surface of the base, so if the bicycle falls over, etc., the dome part will be tilted. Even if a directional force is applied and the dome part tilts diagonally with respect to the base, the edge of the dome body is locked by the locking part, and the dome part will not tilt any further, and the support shaft is elastic. Since it is made of a certain synthetic resin, it can easily return to its original state, so the base, dome, and support shaft will not be damaged. Furthermore, since the base and the bell-striking mechanism are made of synthetic resin, there is no rust and the durability is improved, and it also has the effect of producing a beautiful bell sound.

[Brief explanation of drawings]

The attached drawings show preferred embodiments of the present invention, and FIGS. 1 to 3 show the first embodiment of the present invention, with FIG. 1 being a longitudinal front view and FIG. 2 being a partial longitudinal section. The side view and FIG. 3 are plan views with parts cut away and some internal parts omitted, FIG. 4 is a front view of the second embodiment, and FIG. 5 is a vertical cross-section of the main parts of the third embodiment. FIG. 6 is a plan view of the fourth embodiment. 1, 41, 51...base, 2...bottom, 3,4
2, 52... Side part, 4... Support shaft, 9... Locking piece, 17... Dome part, 19, 54... Dome body, 21... Bearing, 43... Projection, 53... Hook Row, 55... recess.

Claims (1)

[Scope of utility model registration request] a substantially dish-shaped base with a support shaft protruding from the center of the inside; a dome portion with a bearing provided at the center of the inside corresponding to the support shaft; and a dome having an inner diameter slightly larger than the outer diameter of the base; A bell-striking mechanism for striking a dome part is a constituent member, the dome part is placed over the base part, the support shaft and the bearing are connected, and the bell-striking mechanism is formed by the base part and the dome part. The bell having the bell-striking mechanism attached therein is characterized in that the base and the bell-striking mechanism are made of synthetic resin, and a locking portion is provided protruding over the entire circumference of the outer surface of the base. bicycle bell.