JPH0751428Y2 - Dynamo tilting device cover mounting structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a cover mounting structure for covering a dynamo raising / lowering device that is mounted on a bicycle together with a headlight and a dynamo.

(Prior Art) A conventional bicycle lighting device includes a dynamo 1 and a headlamp 2 connected in front of the dynamo 1, as shown in FIG. 2 (A).
It is composed of a spring-type hoisting device 3 connected to the rear of the dynamo 1, and a mounting bracket 4 extending from the hoisting device 3. The mounting bracket 4 is fixed to an arm 6 provided on a front hawk 5 of the bicycle with bolts 7. ing.

Therefore, when driving at night, when the lever 8 of the tilting device 3 is pushed down, the dynamo 1 rotates by a predetermined angle and the roller 9 at the upper end contacts the front wheel (not shown) of the bicycle, and the roller 9 rotates together with the front wheel. By doing so, the headlight 2 is turned on.

Further, the housing 10 for accommodating the raising / lowering device 3 has a U-shape as shown in FIG.
13 and 14 are formed, and a groove 15 is provided above the back surface. The cover 16 is an L-shaped member that prevents rainwater, mud, dust, etc. from entering the inside of the erection device 3, and has a claw 17 on the inner surface of the upper end.
It has a protrusion 18 at the lower end.

Therefore, the rotary shaft 1a of the dynamo 1 is inserted into the hole 12 together with a predetermined coil spring (not shown), the support shaft (not shown) of the lever 8 is fitted into the notch 13 of the housing 10, and then the cover projection When the cover 16 is fitted in the direction of the arrow with the notch 18 engaged with the notch 14, the claw 17 at the tip is locked in the groove 15 of the housing 10 to close the upper surface and the front surface of the housing 10.

(Problems to be solved by the invention) However, in the conventional cover mounting structure, the cover 16
It takes a lot of force to lock the claw 17 of the housing into the groove 15 of the housing 10, and also the lower surface of the housing, the hole 12, the notch 13,1
There is a possibility that rainwater, mud, dust, etc. may enter the inside through the gap of 4, and in this case, there is a possibility that the falling motion may be adversely affected.

The present invention has been made in view of these circumstances,
An object of the present invention is to provide a mounting structure for a dynamo tilting device cover that is easy to mount, can reliably prevent entry of rainwater, mud, dust, etc., and requires a small mounting force.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a mounting structure for a housing that incorporates a dynamo tilting device and a cover that closes the opening side of the housing. The device has a shape that covers a part of the front surface, the upper surface, one side surface, and the lower surface of the device, and has an engaging portion with the housing above and below, and can be inserted from one side of the housing.

Further, a cut-and-raised piece that gradually rises from the root in the insertion direction of the cover and has a gentle inclination above the housing, and a notch is formed below, and a tapered portion for guiding and a notch above the cover. , A locking claw is provided below.

(Operation) With these configurations, when the claw at the lower end of the cover is locked in the notch of the housing and the cover is covered from one side of the housing, the taper portion of the cover is first cut and raised and along the inclined surface of the piece. It is guided smoothly, and when it reaches a predetermined position, the notch of the cover cuts and raises and locks on the piece, and the cover is not only the front and upper surfaces of the housing and the inside up and down device parts, but also one side surface and part of the lower surface. Is also covered.

(Embodiment) FIGS. 1 (A), (B) and FIG. 3 show a bicycle lighting device in which the cover mounting structure of the present invention is summarized.
1 (A) is a side view, FIG. 1 (B) is an exploded perspective view of the cover and the housing as seen from the back side, and FIG. 3 is FIG. 1 (A).
FIG. In this bicycle lighting device (hereinafter, simply referred to as a lighting device), the headlight 2 is provided in front of the tilting device 3.
The dynamo 1 is arranged at the rear side, and a clamp 20 for mounting is attached to the rear surface of a U-shaped housing 10 (FIG. 3) for accommodating the tilting device 3.

The dynamo 1 generates electricity by the upper cap type roller 9 rotating in contact with the rim (not shown) of the front wheel of the bicycle. In this embodiment, a rim contact type dynamo is used from the viewpoint of appearance, but a tire contact type dynamo can be used as shown in FIG. 2 (A).

The tilting device 3 rotates the dynamo 1 to the rim side by the urging force of a coil spring (not shown) in the housing 10, and the dynamo 1 is rotated by pushing down the lever 8.

The housing 10 is U-shaped as shown in FIG. 1 (B),
A hole 12 for inserting a dynamo shaft (not shown) and a hole 13 for inserting a support shaft (not shown) of the lever 8 are formed in both side plates 11. Further, as clearly shown in FIG. 1 (B),
Above the rear surface of the housing 10, a cut-and-raised piece 25 having a gentle slope that gradually rises from the root in the insertion direction of the cover 16 and a cutout 24 is provided at the lower end.

On the other hand, the cover 16 is substantially fan-shaped with one side surface and the back surface (front side in the drawing) open, and the notch 27 and the tapered portion 2 are formed on the inner surface above.
9. A hook-shaped claw 28 is provided below.

Therefore, the claw 28 of the cover 16 is engaged with the notch 24 of the housing 10, and the notch 27 is cut and raised at the position where the cover 16 completely covers the housing 10 and is engaged with the piece 25. Further, when the cover 16 is inserted, the tapered portion 29 is guided along the inclined surface of the cut and raised piece 25, so that a large insertion force is not required.

After the cover 16 is attached, the upper and lower sides of the cover 16 are locked to the housing 10, so that the cover 16 will not be disengaged from the housing 10 due to vibration during traveling of the bicycle.

A clamp 20 is fixed to the rear surface of the housing 10 by two rivets 19 as shown in FIG.
The reference numeral 20 includes a fixed arm 21 and a movable arm 22 which are curved, and a bolt 23 for tightening. The rear end of the movable arm 22 is rotatably attached to the fixed arm 21, and the tips of both arms 21, 22 can be tightened and adjusted by a bolt 23.

The support arm 26 is forward from the fixed arm 21 (right side in the figure).
The headlamp 2 is attached to the support arm 26 with a screw 30.

Therefore, if the clamp 20 is fitted to the front fork 5 of the bicycle as shown by the phantom line in FIG. 3 and the bolt 23 is tightened at a position where the roller 9 of the dynamo 1 can contact the rim, the lighting device is fixed. It At this time, the mounting arm 6 (FIG. 2 (A)) on the front fork side, which is required in the prior art, is not required, and the holding clamp 20 increases the fixing force of the lighting device.

Further, since the clamp 20 is provided on the back surface of the housing 10, the mounting location of the lighting device is difficult to see from the outside, and the appearance is neat. Further, the point that the rim contact type dynamo 1 is used and is covered with the cover 16 of the tilting device 3 is also useful for improving the appearance.

When the bicycle 8 is being run at night, when the lever 8 is pushed down, the roller 9 of the dynamo 1 is brought into contact with the rim of the front wheel by the tilting device 3, and when the vehicle is running in this state, the headlight 2 is illuminated to illuminate the road surface. Since the dynamo 1 and the headlamp 2 are arranged in a well-balanced manner around the housing 10 of the tilting device 3, the lighting device will not be tilted or displaced due to vibration during traveling.

Incidentally, as the locking means for the cover 16 and the housing 10, various means other than the above-mentioned embodiment can be adopted.

(Advantages of the Invention) As described in detail above, according to the mounting structure for the cover for the dynamo tilting device described in claim (1), not only the front surface and the top surface of the housing and the tilting device but also one side surface and Since part of the lower surface is also covered, rainwater, mud, dust, etc. can be reliably prevented from entering.

Further, according to the mounting structure of claim (2), the cover can be easily attached from one side of the housing with a small force.

[Brief description of drawings]

FIG. 1 (A) is a side view of a bicycle lighting device to which the cover mounting structure of the present invention is applied, FIG. 1 (B) is an exploded perspective view of a cover and a housing, and FIG. 2 (A) is a side view of a conventional product. Figure,
FIG. 2B is an exploded perspective view of the cover and the housing,
FIG. 3 is a plan view of FIG. 1 (A). 1 ... Dynamo, 2 ... Headlight, 3 ... Retracting device, 10 ...
… Housing, 16 …… Cover, 20 …… Clamp, 24 ……
Notch, 25 ... Cut and raised piece, 27 ... Notch, 28 ... Claw, 29
...... Tapered part.

Claims (2)

[Scope of utility model registration request] 1. In a mounting structure of a housing having a dynamo raising / lowering device built therein and a cover closing an opening side of the housing, the cover covers a front surface, an upper surface, one side surface and a part of a lower surface of the raising / lowering device. A mounting structure for a cover for a dynamo tilting device, which has a shape and has locking portions for engaging with a housing at upper and lower sides, and is inserted from one side of the housing. 2. A cut-and-raised piece that gradually rises from the root in the insertion direction of the cover and has a gentle slope above the rear surface of the housing, and a notch is formed below the guide piece above the cover. The mounting of the cover for a dynamo tilting device according to claim 1, wherein a taper portion for locking, a cutout for locking the cut-and-raised piece, and a claw for locking the cutout of the housing are provided below. Construction.