JPH0243046Y2 - - Google Patents

Description

[Detailed Description of the Invention] The mounting structure of the flanged light bulb of the present invention will be explained according to the following items.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem that the invention attempts to solve E. Means for solving the problem F. Example [Figures 1 to 4] a H _Three- valve mounting structure Outline [Fig. 1] b H ₃ valve [Fig. 1 to 4] c Holder [Fig. 1 to 4] d Holding member [Fig. 1 to 4] e Rotation support member [Fig. Figures 1 to 3] f H ₃ Attachment of bulb to holder [Figures 2 to 4] G Effect of the invention (A Field of industrial application) This invention relates to a new mounting structure for a flanged light bulb. . In detail, this is a new flange light bulb mounting structure that makes it easy to attach the flange light bulb to the holder, and also prevents the component for attaching the flange light bulb to the holder from being separated from the holder, thereby preventing its loss. This is what we are trying to provide.

(B Summary of the invention) The mounting structure of the flanged light bulb of the present invention is such that one end of the holding member is rotatably attached to one mounting piece of the holder, and the other end is attached to and detached from the other mounting piece. , the holding member is provided with a holding piece that presses the flange of the light bulb against the mounting piece, which has a simple structure and makes it easy to attach the light bulb to the holder.
It is possible to prevent the loss of necessary parts (springs, etc.) when replacing a light bulb.

(C Prior Art) A flanged light bulb, for example, an _H3 bulb, consists of a glass bulb, a base with a rectangular cross section that holds the base of the glass bulb, and a flange formed approximately in the center of the base. A round notch and a square notch are formed with the base in between.

Conventionally, there are the following holders for mounting the above-mentioned _H3 bulb.

That is, in the conventional holder, the mounting piece on which the flange of the H ₃ valve is placed has protrusions each having a shape that fits the two notches of the flange of the H ₃ valve, and also holds the flange of the H ₃ valve. A plurality of locking pawls are formed for locking a mounting spring made of a spring wire material.

Therefore, _H3 to the holder fixed to the lamp
The valve is installed by engaging two positioning protrusions formed on the holder with a round notch and a square notch formed on the flange of the _H3 valve, respectively, and positioning the _H3 valve. By holding the flange of the holder against the holder and locking a mounting spring separate from the holder to the locking claw of the holder, the flange of the holder can be held between the mounting piece of the holder and the spring.
The _H3 valve is attached to the holder by holding the flange of the _H3 valve.

(Problem that invention D aims to solve) However, in the case of the conventional mounting structure for light bulbs with flanges as described above, a mounting spring separate from the holder is required in order to attach the light bulb to the holder. Therefore, it was difficult to attach the light bulb to the holder, and furthermore, there was a problem that if the mounting spring was accidentally dropped, it would be lost. In addition, the holder must have a dedicated protrusion for positioning the light bulb.
The problem was that the structure had become complicated.

(E. Means for Solving Problems) In order to solve the above-mentioned problems, the mounting structure of the flanged light bulb of the present invention rotatably attaches one end of the holding member to one mounting piece of the holder. , the other end can be freely engaged and detached from the other mounting piece, and the holding member is provided with a pressing piece that elastically presses the flange of the light bulb against the mounting piece, and the holding member can be freely rotated with respect to the mounting piece. The head of the rotation fulcrum member is used as an engaging portion with which one of the positioning notches formed in the flange of the light bulb engages.

Therefore, according to the mounting structure of the flanged light bulb of the present invention, although it has a simple structure, it is easy to attach the light bulb to the holder, and there is no need to lose necessary parts (springs, etc.) when replacing the light bulb. It is possible to prevent this from happening.

(Embodiment F) [Figures 1 to 4] Below, an embodiment in which the details of the mounting structure of the flanged light bulb of the present invention are applied to an _H3 bulb will be described.

(a Schematic of the mounting structure of the _H3 valve) [Figure 1] In the figure, 1 is the _H3 valve, 2 is a holder that holds the _H3 valve 1, and 3 is rotatably attached to the holder 2. This is a holding member for holding the H ₃ bulb 1 on the holder 2.

(b H ₃ Bulb) [Figures 1 to 4] The H ₃ bulb 1 includes a glass bulb 4 containing a filament, a base 5 having a rectangular cross section that holds the base of the glass bulb 4, and the base 5. The flange 6 has a round notch 7 for positioning and a square notch at the outer peripheral edge located on the opposite side with the base 5 in between. 8 is formed.

(c Holder) [Figures 1 to 4] The holder 2 is formed by press-molding a single sheet metal material, and includes a bottom plate 9 and a rear plate 10 vertically erected from the rear end of the bottom plate 9. and left and right side plates 11 and 12 bent forward at a substantially right angle from both left and right edges of the rear plate 10, respectively, and approximately outwardly bent from the upper edges of the left and right side plates 11 and 12. Attachment pieces 13 and 14 are formed that are bent at right angles, and one attachment piece 13 is provided with an attachment hole 15 for pivotally supporting the holding member 3, and the other attachment piece 14 is provided with an attachment hole 15 for pivotally supporting the holding member 3. ₃ Valve 1 flange 6
An engaging piece 16 is cut and raised to engage the square notch 8 formed in the square notch 8 . Note that the engagement piece 16 is cut and raised so that the distal end surface 16 of the engagement piece 16 is cut and raised.
The lower edge of a does not separate upward from the upper surface of the mounting piece 14.

Reference numeral 17 denotes a mounting hole bored approximately in the center of the bottom plate 9 of the holder 2, into which a screw to be attached to a base of a lamp or the like is inserted.

(d Holding member) [Figs. 1 to 4] The holding member 3 is formed into a substantially C-shape by punching and forming a sheet metal material having spring elasticity, and the main body 18
A mounting hole 19 having approximately the same diameter as the mounting hole 15 formed in the mounting piece 13 of the holder 2 is bored at one end,
At the other end, an engaging piece 1 is attached to the mounting piece 14 of the holder 2.
By cutting and raising 6, a protrusion 21 is formed which is engaged with an engagement recess 20 formed on the back side thereof.

22, 22 are pressing pieces formed in a folded manner on the outer edges of the main body 18 of the holding member 3, which are closer to both ends from the center of the holding member 3; , the flange 6 of the _H3 valve and the mounting pieces 13, 14 of the holder 2 are elastically clamped.

(e Rotation fulcrum member) [Figs. 1 to 3] 23 is the holding member 3 attached to the mounting piece 1 of the holder 2.
3, the rotation fulcrum member 23 is a cylindrical support shaft whose outer diameter is slightly smaller than the inner diameter of the mounting hole 15 of the mounting piece 13 of the holder 2. The portion 23a and a cylindrical head portion 23b formed at one end of the support shaft portion 23a and having a larger diameter than this are integrally formed. And the rotation fulcrum member 2
3 is attached to the mounting hole 15 of the mounting piece 13 of the holder 2 and the mounting hole 19 of the holding member 3 which is superimposed on the back surface (the surface opposite to the surface on which the flange 6 is placed) of the mounting piece 13. The inserted portion of the holding member 3 that protrudes downward from the mounting hole 19 is caulked to be fixed to the mounting piece 13, and at the same time, the holding member 3 is pivotally supported on the mounting piece 13.
Further, the head 23b of the rotation fulcrum member 23 is located on the surface of the mounting piece 13 of the holder 2 (the surface on which the flange 6 is placed).

(Attachment of the f _H3 bulb to the holder) [Figures 2 to 4] The _H3 bulb 1 is attached to the holder 2 in the following manner.

That is, first, the holding member 3 pivotally supported on the holder 2
Leave it in the open state (the state shown by the two-dot chain line in Figure 2), and insert the lower side of the cap 5 of the H ₃ bulb 1 (the part on the opposite side of the glass bulb 4 from the flange 6) to the rear plate 10 of the holder 2. It fits into the space surrounded by the left and right side plates 11 and 12, and the flange 6 of the H ₃ valve 1 is placed on the mounting pieces 13 and 14 of the holder 2. At this time, the round notch 7 formed in the flange 6 of the _H3 valve 1 is inserted into the cylindrical head 23b of the rotation fulcrum member 23 which is arranged to protrude above the mounting piece 13 of the holder 2.
At the same time, the square notch 8 of the flange 6 is engaged with the engaging piece 16 formed in the mounting piece 14 of the holder 2 in a raised shape, thereby attaching the H ₃ valve 1 to the holder 2. Position against.

Next, place H ₃ on the mounting pieces 13 and 14 of the holder 2.
With the flange 6 of the valve 1 placed thereon, the holding member 3, which was in the open state, is rotated to release the pressing piece 2.
The flange 6 of the _H3 valve 1 and the mounting pieces 13, 14 of the holder 2, which are overlapped by the flange 6 and the main body 18 thereof, are sandwiched from above and below, and the protrusion 21 on the opposite rotation fulcrum side of the holding member 3 Mounting piece 1 of holder 2
4, the attachment of the H ₃ bulb 1 to the holder 2 is completed.

And _H3 valve 1 attached to holder 2
This is applied, for example, to an on-vehicle revolving light installed on the roof of a vehicle.

In addition, when removing the _H3 bulb 1 from the holder 2, rotate the holding member 3 around the rotation fulcrum, and connect the engagement recess 20 formed on the back surface of the mounting piece 14 of the holder 2 with the protrusion of the holding member 3. The H ₃ valve 1 can be removed from the holder 2 by disengaging the flange 6 of the H ₃ valve 1 and the mounting pieces 13 and 14 of the holder 2 from being held by the holding member 3. can. At this time, since one end of the holding member 3 is rotatably supported by the holder 2, the holding member 3 will not come off from the holder 2, and therefore there is no risk of loss.

(G. Effect of the invention) As is clear from the above description, the mounting structure of the flange-equipped light bulb of the present invention has two positioning notches located on opposite sides of the outer periphery of the flange provided on the base. a holder having two mounting pieces on which the flange of the light bulb is placed; and a holding member that holds the flange of the light bulb on the mounting piece of the holder, the holding member being made of an elastic material and having one end The holder is pivotally supported by one mounting piece of the holder via a rotation support member, and the other end is configured to be able to be freely engaged with and detached from the other mounting piece of the holder. A pressing piece is formed at each position to elastically press the flange of the light bulb against the mounting piece of the holder when one end of the holding member is locked to one of the mounting pieces of the holder. The supporting member has a head protruding from the flange mounting surface side of one mounting piece of the holder, and is an engaging part that engages with one positioning notch formed in the flange of the light bulb. The mounting piece is characterized in that an engaging portion is formed on the mounting piece, with which the other positioning notch formed on the flange of the light bulb engages.

Therefore, according to the mounting structure of the flanged light bulb of the present invention, one end of the holding member is rotatably attached to one mounting piece of the holder, and the other end is made freely engageable and detachable from the other mounting piece. Since the holding member is equipped with a pressing piece that elastically presses the flange of the light bulb against the mounting piece, the flange-equipped light bulb can be attached to and removed from the holder simply by rotating the holding member, such as when replacing the light bulb. A necessary member will not come off from the holder, and it is possible to prevent the member from being lost.

[Brief explanation of the drawing]

Figures 1 to 4 show an example of the mounting structure of the flanged light bulb of the present invention. Figure 1 is an exploded perspective view, Figure 2 is a plan view, Figure 3 is a side view of one side, and FIG. 4 is the other partially cutaway side view. Explanation of symbols, 1...Light bulb with flange, 2...Holder, 3...Holding member, 6...Flange, 7,
8... Positioning notch, 13, 14... Mounting piece,
16... Engaging portion, 20... Engaging recess, 22... Pressing piece, 23... Rotating fulcrum member, 23b... Head.

Claims (1)

[Claims for Utility Model Registration] (1) A light bulb having two positioning notches located on opposite sides of the outer periphery of a flange provided on the base, and two mounting pieces on which the flanges of the light bulb are placed. and a holding member for holding the flange of the light bulb to a mounting piece of the holder, the holding member being made of an elastic material and having one end pivotally connected to one of the mounting pieces of the holder via a rotation support member. The holding member is supported so that its other end can be freely engaged with and detached from the other mounting piece of the holder, and one end of the holding member is attached to one of the mounting pieces of the holder at positions closer to both ends from the center of the holding member. Pressing pieces are respectively formed to resiliently press the flange of the light bulb against the mounting piece of the holder when the light bulb is locked in the holder, and the rotation support member is formed on the flange mounting surface side of one of the mounting pieces of the holder. The protruding head is an engaging part that engages with one positioning notch formed in the flange of the light bulb, and the other mounting piece of the holder has a positioning notch formed in the flange of the light bulb. A mounting structure for a light bulb with a flange, characterized in that an engaging portion is formed to engage with the flange. (2) A protrusion is formed on the rotating end of the holding member that protrudes to one side of the mounting side, and the engaging part formed on the other mounting piece of the holder is formed by cutting and raising a part of the mounting piece. Utility model registration claim 1, characterized in that the protrusion of the holding member engages with a recess formed by cutting and raising the engagement part.
Mounting structure of the flange light bulb described in section.