JPS5844063Y2 - Bicycle headlight device - Google Patents

Description

[Detailed description of the invention] This invention relates to a bicycle headlight device having a headlight in which the illumination part of the light body can freely come out and go out from the storage case. This relates to the configuration of an electric tilting mechanism that has a motor that rotates in forward and reverse directions when a switch is switched, and the output gear of the electric tilting mechanism is integrated with a rotation switch that controls the forward and reverse rotation of the motor. It is.

Hereinafter, the bicycle headlight device of the present invention will be explained according to the embodiment shown in the drawings. Reference numeral 1, 1 is a pair of left and right headlights attached below the carrier 3 of the bicycle body 2;
Reference numeral 4 denotes a lamp housing having a substantially fan-shaped cross section, and is composed of a rear case 5 having a front opening, a lens 6 covering the front opening, a light bulb 7, a reflector 8, a socket 9, and the like.

Reference numeral 11 denotes a storage case in which the rotary arm 10 of the lamp housing 4 is rotatably supported by a pivot shaft 13, and the lamp housing 4 can be freely extended and retracted from the opening 12.

Reference numeral 14 denotes a coil spring that is wound around the support shaft 13 and constantly biases the lamp body casing 4 in the direction of retraction into the storage case 11; and 15 a coil spring fixed to the protruding end of the support shaft 13; By rotating this operating member 15, the pivot shaft 13 is rotated against the biasing force of the coil spring 140, and the lens 6 portion of the lamp housing 4 is exposed through the opening 12 of the storage housing 11. It is designed to allow

16 is an electric lifting device attached to the lower part of the carrier 3 of the bicycle body 2, and in detail below, 17 is a forward and reverse rotating motor;
18a and 18b are first and second gears that decelerate and transmit the rotation of the forward/reverse rotation motor 17, and 19 is the second gear 18b.
These constitute an electric drive mechanism.

The output gear 19 has a pair of shaft supports 21 and 21' having a through hole 20 formed at both ends, and a hexagonal shaft part 22 which is a non-circular shaft part coaxially formed on one of the shaft supports 21 and 21'. ,have.

Furthermore, 23 is an output shaft that passes through the through hole 20 of the output gear 190 in a pinched manner and rotates with the rotation of the output gear 19, and a pair of tension operating rods 24, 24 are fixed to both shaft ends. There is.

Reference numeral 25 denotes an elastic lead plate, which has a circular shape and has a peripheral portion coaxially cut at every 120 degrees, and has a first, second, and third lead piece 26 that is divided into three parts, each having a tip portion curved in the axial direction.
a, 26b.

26C, and a hexagonal hole 27, which is a non-circular shaft support hole, is bored in the center of the shaft, and is large enough to be inserted into the hexagonal shaft portion 22.

28 is a switch board, and the first, second, and third lead pieces 26a, 26b.

Arc-shaped first and second power supply electrodes 29a are opposed to 26c.

29b and the arc-shaped power receiving electrode 30 are coaxially divided into three parts, and a loose through hole 31 is bored in the center. By making the length shorter than the length of 30, a stopping gap 33° 33' is formed between the husbands of the first and second power feeding electrodes 29a, 29b and the power receiving electrode 30.

Then, the hexagonal hole 27 of the lead plate 25 is inserted into the hexagonal shaft portion 22 of the output gear 19, and the shaft end of the hexagonal shaft portion 220 is in sliding contact with the periphery of the loose insertion hole 31 of the switch board 28. The lead plate 25 is held between the output gear 19 and the switch board 28 by passing the shaft support 21 loosely through the through hole 31 of the switch board 28.

Furthermore, 34 and 34' are a pair of output shaft engagement protrusions protruding inside the electric tilting mechanism housing 16, and 35 and 35' are a pair of similarly protruding lip pieces for securing a printed circuit board. in,
The switch board 28 is connected to the pair of rib pieces 35, 35'.
The output shaft 23 is inserted and fixed into the engagement grooves 36 and 36' of the output shaft engagement protrusions 34 and 34', and the output shaft 23 is loosely placed in the shaft support grooves 37 and 37' of the output shaft engagement protrusions 34 and 34'. The output gear 19
The pair of shaft supports 21° 21' are connected to the output shaft engaging protrusion 3.
The output gear 19, the elastic lead plate 25, and the printed circuit board 28 constitute a rotary switch 38.

Therefore, the lead plate 25 of the rotary switch 38 is rotated by the rotation of the output gear 19 and slides on the printed circuit board 28, thereby switching between the electrodes. The rotation of the forward/reverse rotation motor 17 is controlled by switching the circuit.

39. 39 is a pair of tension operation rods 24, 24 of this electric raising/lowering mechanism 25 and respective lamp sources 4 of the left and right headlamps 1, 1.
, with a wire stretched between the four operating members is and is,
Due to the forward rotation of the motor 17 of the electric tilting mechanism, the output shaft 2
3 in the forward direction and pulling these wires 39,39 through the tension operating rods 24,24.
5. 15 is rotated to make the lamp source 4 protrude from the housing 11, and the motor 17 is rotated in the opposite direction to rotate the tension operating rod 24° 24 in the opposite direction to loosen these wires 39° 39, and the lamp is removed. Storage case 11 by body source 4, 4's own ammunition power
, 1.1.

Reference numeral 40 denotes a battery case provided below the saddle of the bicycle body 2, which houses a power source battery 41 for the electric raising/lowering mechanism.

Reference numeral 42 denotes a hand switch provided on the bundle of the bicycle body 2, which houses a two-circuit, two-contact switch 43.

The electric raising/lowering mechanism, the power supply battery 41, and the two-circuit, two-contact switch 43 constitute an electric circuit as shown in FIG.

In other words, Fig. 5A shows a state in which the lamp source is immersed in the storage case;
The figure opening shows a state in which the hand switch is inserted into the protruding side of the lamp housing, and FIG. 5C shows a state in which the lamp source protrudes from the storage housing.

The bicycle headlight device of the present invention is as described above, and in particular, in one in which a light source with a lighting section that can be moved in and out of a storage case is operated to move in and out of the storage case by an electric lifting mechanism having a forward and reverse rotation motor, This electric tilting mechanism includes an output gear in which a non-circular shaft portion is coaxially formed on the shaft support, and a non-circular shaft support hole is inserted into the non-circular shaft portion to support the rotation of the output gear. an elastic lead plate that rotates in a corresponding manner; and a switch board having an electrode that slides in contact with the shaft end of the non-circular shaft portion, passes through the shaft support part loosely, and is switched by the sliding movement of the elastic lead plate. There is a rotary switch sandwiched between a pair of engagement protrusions of the raising/lowering mechanism storage case, and the forward/reverse rotation of the motor is controlled by the rotary switch. Installation into the housing can be done at the same time as installation between the engagement protrusions of the output shaft, and this installation can be done by inserting the non-circular shaft support hole of the elastic lead plate into the non-circular shaft portion of the shaft support of the output gear. Since the shaft support of the output gear loosely penetrates through the printed circuit board and can be simply sandwiched between a pair of engaging protrusions, the assembly workability is very good.

Furthermore, the space required to maintain the elasticity of the elastic lead plate in the axial direction of the output gear is automatically secured by the axial length of the non-circular shaft portion of the shaft support of the output gear. Even in this case, the elasticity of the elastic lead plate is not lost, so switching between electrodes can be performed smoothly at all times, and there is no risk of contact failure.

Furthermore, this rotary switch is composed only of an output gear, an elastic lead plate, and a printed circuit board, and does not require any other fixing parts, which contributes to a reduction in the number of parts used.

[Brief explanation of drawings]

The drawings all show examples of the proposed bicycle headlight device,
Figure 1 is an overall view of the headlight installed on a bicycle, Figure 2 is a cross-sectional view of the headlight with the light tube protruding, Figure 3 is a diagram of the electric tilting mechanism storage case, and A is a plan view with the top cover removed. In the figures, the opening is a side view, C is a sectional view taken along line A-A' at the opening, 2 is an exploded perspective view of the main parts, Figure 4 is a schematic diagram, Figure 5 is an electrical circuit diagram, and A is a lamp body. C shows the state in which the tube is recessed into the storage case, C shows the state in which the hand switch is placed on the protruding side of the lamp case, and C shows the state in which the lamp tube protrudes from the storage case. 11...Storage case, 4...-Light tube, 17
...Motor, 16...Electric tilting mechanism housing, 19...Output gear, 25...Elastic lead plate, 28... switch board.

Claims (1)

[Scope of utility model registration request] In a lamp housing in which the headlight part can be freely moved in and out of the housing housing, an electric lifting mechanism having a forward and reverse rotation motor is used to move the lamp housing in and out. an output gear formed in a shape, an elastic lead plate that is pivotally supported by inserting a non-circular shaft support hole into the non-circular shaft portion and rotates in response to rotation of the output gear, and the non-circular shaft portion. a switch board having an electrode that slides in contact with the shaft end of the switch board, passes through the shaft support part loosely, and is switched by the sliding movement of the elastic lead plate, and is sandwiched between a pair of engagement protrusions of the tilting mechanism storage case. What is claimed is: 1. A bicycle headlight device comprising at least a rotary switch, the rotary switch controlling forward and reverse rotation of the motor.