JPS631362Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to the improvement of portable electric lights, and in particular to a switch structure with a dustproof function that is easy to assemble.

This type of portable light is often used outdoors, and when used in rainy or dusty environments, for example, there is a tendency for poor conductivity to occur at the contacts, especially at the switch, so the switch is covered with a dustproof cover. It is covered and protected.

This idea was designed to provide such a dustproof function, and the switch cover is installed in a storage recess formed on the outer surface of the main body case by a standing wall that surrounds the entire periphery, with the upper part of the switch operation part covered by the switch cover. A switch presser plate having a through hole for projecting the switch cover presses the peripheral edge of the switch cover and the edge of the vertical wall, and a press-fit pin protrudes from the lower surface of the switch cover plate and a corresponding press-fit pin. The press-fitting position with the hollow boss portion on the side of the storage recess is arranged close to the position where the peripheral edge of the switch cover is pressed by the switch presser plate.

An embodiment of this invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a main body case made of synthetic resin or the like with an open front end, and has a handle part 2. Inside, a battery 3 and radio receiving circuit components (not shown) are housed. A sound emitting hole 4 is formed on the side wall, and a hanging hook member 5 is formed on the lower wall.

6 is made of synthetic resin, etc., and is connected to the main body case 1.
The outer peripheral surface of the front end opening 1a of the main body case 1 and the inner peripheral surface of this lens cap 6 have threaded parts 7 and 8 that are screwed together. are formed respectively. A lens body 10 having a hook-shaped portion 9 formed on its outer peripheral edge is firmly fixed to the lens cap 6 by insert molding of the hook-shaped portion 9. 1
1 is placed on the front surface of the synthetic resin substrate 12 as shown in FIG.
A reflective mirror formed by depositing a reflective layer 13 such as Al,
A cylindrical portion 15 for inserting a light bulb 14 is formed at the rear end, and a flange portion 16 is formed at the outer periphery of the front end, and is press-fitted and fixed to the lens cap 6 via the flange portion 16. The flange 16 allows the reflecting mirror 1 to
1 is press-fitted into the mirror 11 during press-fitting.
This is to prevent distortion and deformation.

Reference numeral 17 indicates a power switch for the light bulb 14, for example, a push-button type switch, and reference numeral 18 indicates a recess for housing the switch, which is formed by a standing wall 18a surrounding the entire circumference on the upper wall of the outer surface of the main body case 1. As shown in FIGS. 3 and 4, a switch fitting hole 20 surrounded by a cylindrical wall 19 is formed in the recess 18, and a plurality of hollow bosses 21 are formed in the cylindrical wall 19. It is located on the outside and protrudes. 22 is a switch cover made of neoprene rubber or the like and is fitted onto the switch operation 17a of the switch 17 and covers the push button 23; 24 is a switch holding plate made of ABS resin or the like, with a switch cover through hole 25 formed in the center thereof; A press-fit pin 26 corresponding to the hollow boss portion 21 is provided protruding from the lower surface. With the push button 23 covered with the switch cover 22 and the switch 17 fitted into the switch fitting hole 20, until the switch presser plate 24 is fitted into the opening edge of the vertical wall 18a of the recess 18, By press-fitting each press-fitting pin 26 into the hollow boss portion 21, the switch 17 and the switch cover 22 are attached to the main body case 1 side. The reason why the switch presser plate 24 is curved in a concave manner so that it can be elastically deformed from the periphery toward the cover through hole 25 is as follows.
This is to apply the elastic reaction force of the recessed portion 27 to the switch 17 side, particularly to the periphery of the switch cover 22 when the switch 17 is installed, thereby firmly fixing the switch cover 22.

The switch presser plate 24 has a press-fit pin 26 protruding from its lower surface and the hollow boss portion 21.
Since the press-fitting position of the switch cover 22 is located close to the position where the switch presser plate 24 presses the periphery of the switch cover 22, together with the elastically deformable concave shape, the periphery of the switch cover 22 can be pressed even more firmly. There is.

With respect to the switch 17 in this attached state, the switch cover 22 is prevented from wobbling due to the wedge action of the inclined ribs 28 protruding from the inner wall of the cylindrical wall 19. Note that if an elastic protrusion 29 made of polypropylene resin or the like is formed on the inner wall of each hollow boss portion 21 as shown in FIG.
The press-fit condition becomes even more solid.

Reference numeral 30 denotes a synthetic resin battery receiving plate located on the front side of the battery 3 and disposed inside the main body case 1, and the battery receiving plate 30 has a mark on its outer periphery as shown in FIG. A reinforcing rib wall portion 31 is formed along the wall, and a light bulb holding tube portion 32 that is fitted into the tube portion 15 of the reflecting mirror 11 projects from approximately the center of the front surface of the rib wall portion 31 for reinforcement. The reason why the slotted portions 33 and 34 are formed in the cylindrical portion 32 is to enable elastic deformation when the cylindrical portion 32 is fitted into the cylindrical portion 15. Reference numeral 35 denotes a plurality of elastic protrusions equally distributed around the bulb holding tube 32, and these elastic protrusions 35
A fitting portion such as an annular groove 36 is formed on one of the inner surface of the distal end and the outer circumferential surface of the cylindrical portion 15 of the reflecting mirror 11, for example, on the outer circumferential surface of the cylindrical portion 15, and the fitting portion such as the annular groove 36 is formed on the other, that is, the distal end of the elastic protrusion 35. The annular groove 36 is formed on the inner surface.
A fitting portion such as a protrusion 37 is formed to be fitted into. The elastic protrusions 35 are formed by cutting out a part of the annular protruding wall 38 formed on the outside of the light bulb holding tube 32, but each elastic protrusion 35 may be formed individually. . Reference numerals 39 and 39 designate anti-rotation pieces protruding from the rear surface of the battery receiving plate 30, which abut against the inner wall side of the main body case 1 when the battery receiving plate 30 is disposed inside the main body case 1. This is to position the battery receiving plate 30.

7 and 8 on the rear surface of the battery receiving plate 30.
As shown in the figure, lead plates 40 to 42 are fused or caulked by protrusions 43 and the like. One end 40a, 41a of each lead plate 40, 41 extends to a position corresponding to the external terminal 44, 45 of the power switch 17, and each other end 40b, 41b extends to a position corresponding to one pole 3a of the battery 3. and a slot 33 corresponding to one electrode 14a of the light bulb 14, one end 42a of the lead plate 42 is located at a position corresponding to the other pole 3b of the battery 3, and the other end 42b is located at a position corresponding to the other electrode 3b of the light bulb 14. The two electrodes extend into the cylindrical portion 32 in correspondence with the other electrode 14b. 46 is a flange formed on the cylindrical portion 15 of the reflecting mirror 11 to prevent the light bulb 14 from coming off.

In order to assemble the battery receiving plate 30 into the main body case 1, first insert and hold the light bulb 14 into the bulb holding cylindrical portion 32 of the battery receiving plate 30 as shown in FIG. The projecting piece 35 is connected to the reflecting mirror 1
1, the protrusions 3 of each elastic protrusion 35 fit into the annular groove 36 on the outer peripheral surface of the cylindrical portion 15.
7 is fitted, the battery receiving plate 30 is connected to the 10th
As shown in the figure, the light bulb 14 is rotatably attached to the reflector 11, and furthermore, the light bulb 14 is prevented from coming out by the flange 46 of the cylindrical part 15, and each electrode part 14a,
14b is the other end 41b of the lead plates 41, 42,
42b, respectively. As a result, the light bulb 14 and battery receiving plate 30 are blocked together with the reflecting mirror 11 into the lens cap 6. Simply place the ends 40a, 41a of the lead plates 40, 41 opposite the external terminals 44, 45 of the power switch 17, respectively, and screw the lens cap 6 into the front end opening of the main body case 1 as shown in FIG. Then, the battery receiving plate 30 can be placed inside the main body case 1. In other words, during the above screw operation,
The rotation prevention pieces 39, 39 of the battery receiving plate 30 come into contact with the inner wall of the shoulder portion of the main body case 1 as shown in FIG. 12, allowing the lens cap 6 to rotate while keeping the battery receiving plate 30 in position. , this lens cap 6 is rotated, and the battery receiving plate 30 is set to a position where it presses the battery 3.
The battery 3, the light bulb 14, and the power switch 17 are electrically connected through the respective lead plates 40 to 42 of FIG.

To replace the battery, remove the lens cap 6 from the main body case 1 by performing the reverse operation to the above, and the lens cap 6 and the battery receiving plate 30 can be removed together with the lens cap 6.
Since the battery 3 can be removed from the main body case 1, the battery 3 inside the main body case 1 can be easily taken out.

In the above embodiment, the annular groove 36 was formed on the outer peripheral surface of the cylindrical portion 15 of the reflecting mirror 11, and the protrusion 37 was formed on the inner surface of the elastic projection 35 of the battery receiving plate 30. A protrusion 37 may be formed on the inner surface of the elastic protrusion 35, and an annular groove 36 may be formed on the inner surface of the elastic protrusion 35.

As described above, this invention is based on the switch operation section 1.
With the upper part of 7a covered with the switch cover 22, a standing wall 18 is installed on the outer surface of the main body case 1, surrounding the entire circumference.
It is attached to the storage recess 18 formed in step a, and the switch press plate 24, which has a through hole 25 for protruding the switch cover 22, presses the peripheral edge of the switch cover 22 and the edge of the vertical wall, and the switch Press-fit pin 2 protruding from the lower surface of the holding plate 24
6 and the corresponding hollow boss portion 21 on the side of the storage recess 18 are press-fitted at the switch press plate 24.
By disposing the switch cover 22 in close proximity to the peripheral pressing position of the switch cover 22, the switch presser plate 24
The mounting force can be applied more strongly to the peripheral edge of the switch cover 22 than to the edge of the vertical wall 18a, making it possible to more reliably perform waterproofing and dustproofing. Since the pressure on the switch cover 22 side near the protruding position, that is, the elastic force of the cover is applied, the cover 22 itself plays the role of a so-called spring washer, and prevents the press-fit state from relaxing due to external force or vibration during use. can do.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of an example of a portable electric lamp according to this invention, Fig. 2 is an explanatory diagram of the structure of the reflector, and Figs. 3 and 4 are perspective views showing the mounting structure of the power switch, respectively. Figures and sectional views, Figure 5 is an explanatory diagram of the hollow boss part, Figures 6 to 8 are explanatory diagrams of the battery receiving plate, and Figures 9 to 12 are explanatory diagrams of the assembly procedure of the battery receiving plate. It is. 1... Main body case, 17a... Switch operation section, 18... Storage recess, 18a... Standing wall, 21...
...Hollow boss part, 22...Switch cover, 24...
...Switch holding plate, 25...Protrusion through hole, 26
...Press-fit pin.

Claims (1)

[Scope of utility model registration request] With the upper part of the switch operation part 17a covered with the switch cover 22, it is attached to the storage recess 18 formed by the standing wall 18a surrounding the entire circumference on the outer surface of the main body case 1.
5 presses the peripheral edge of the switch cover 22 and the edge of the vertical wall, and a press-fit pin 26 protruding from the lower surface of the switch press plate 24 and a corresponding storage recess are pressed. A switch structure for a mobile light lamp, characterized in that the press-fitting position with the hollow boss part 21 on the 18th side is located close to the position where the periphery of the switch cover 22 is pressed by the switch presser plate 24.