JPS5828912Y2 - Vehicle interior light - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an interior light for a vehicle.

BACKGROUND ART Switching of conventional vehicle interior lights, such as blinking or changing brightness, is generally done by manually operating a mechanical changeover switch lever, a switch knob, a seesaw type switch, or the like.

However, this conventional technology has the problem that when performing such an operation at night or in the dark, it is troublesome to find the lever of the changeover switch, and furthermore, it is difficult to perform the operation quickly.

Another problem is that the lamp itself takes up a large space.

In view of the above circumstances, the present invention has been developed to provide a vehicle interior that can be easily operated even in dark surroundings, is highly reliable, and can be switched without creating any protruding parts, and is advantageous in terms of space. The purpose is to provide light.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vehicle interior light according to the present invention will be described below with reference to the accompanying drawings.

The vehicle interior light of the present invention in this embodiment includes a housing 1, a lens 2, a bulb 3, and a bulb holder 40.
, a shade 41 , a printed circuit board 50 , an electrical component 51 , and a bush contact 6 .

The housing 1 is formed of polypropylene or the like into a substantially boat shape, and has a window 10 at the central valve mounting location, and a semicircular engagement protrusion 11 on the inner wall surface of one longitudinal side edge. are provided at two locations, and the engaging protrusions 11 are provided at two locations.
A rectangular through hole 12 is provided at the bottom of the housing 1 corresponding to , is made slightly smaller than the gap A between the upper surface of the engaging protrusion 21 of the lens 2 and the contact surface 23 of the lens against the housing, which will be described later.

On the other hand, on the other longitudinal side edge of the housing 1, that is, on the side opposite to the side having the engaging protrusion 11, a locking portion 14 is provided to which a flange portion 24 of a lens 2, which will be described later, is locked.

The lens 2 is made of acrylic resin or the like, has a dish shape that can cover the opening of the housing 1, and has two legs 20 attached to one longitudinal side edge of the lens 2 through the through hole 12 of the housing 1.
A raw egg-shaped engagement protrusion 21 is provided on the outer surface of the leg 20 so as to be inserted into the body.
The gap A between the upper surface and the contact surface 23 on the lower surface of the side wall of the lens 2 is made slightly larger than the gap a between the engagement protrusion 11 of the housing 1 and the contact surface 13.

Further, a flange portion 24 that can be locked to the locking portion 14 of the housing 1 is provided on the side edge of the lens 2 opposite to the side where the leg portion 20 is provided.
is provided, and when the flange 24 comes into contact with the locking part 14 of the housing, the lower surface of the lens 2 slopes upward from the leg part 20 side to the opposite side edge, and the housing 1 and the lens 2
A gap B is formed between the side edges other than the mounting side edge.

Further, a protrusion 25 is provided on the inner surface of the side edge of the lens 2 on the side having the flange 24 so as to protrude so as to face a bush contact 6 to be described later.

The holder 40 has an L-shape as shown in FIG.
Two holders 40 are fixed to opposing peripheral edges of the through hole 10 of the housing 1 with caulking pins 7, and the valve 3 is removably held between the two holders 40.

The shade 41 has a U-shape as shown in FIG.
The bulb 3 is fixed to the peripheral edge perpendicular to the fixed peripheral edge by a caulking pin 7, and the valve 3 held between the two holders 40 is covered.

The printed circuit board 50, as shown in FIG.
While applying printed wiring 53 on the printed circuit board 52,
Contact portions 54 are provided at both left and right corners of the upper side of the printed circuit board 52 of the printed wiring 53, and leg portions 6 of bushing contacts 6, which will be described later, are provided at symmetrical positions around the contact portions 54.
3 is provided with a through hole 55 into which it is inserted.

The printed wiring 53 of the printed circuit board 50 and the electronic component 51 are connected as appropriate, and the electronic component 51 is fixed to the housing 1 with the caulking pin 7.
The cord 56 from the holder 40 is connected to the holder 40 by soldering, and a contact 62 of a bushing contact 6 (described later) comes into contact with the contact portion 54 of the printed wiring 53, so that the bulb 3 is turned on and off, or the bulb 3 is turned on and off. It is configured so that the illuminance of the light can be switched.

The bush contact 6 is made of silicone rubber, and as shown in FIG. 9, it has a substantially square flange 60, an elastic pressing portion 61 protruding in the shape of a truncated cone at the center, and an elastic suppressing portion 61 thereof. It consists of a contact 62 made of conductive rubber fixed to the inner surface of the flange 60, and a leg 63 protruding from a diagonal corner of the flange 60 in a direction opposite to the elastic suppressing part 61.

The leg portion 63 of the bushing contact 6 is inserted into the through hole 55 of the printed circuit board 50, and the contact piece 62 of the contact 6 is opposed to the contact portion 54 of the printed wiring 53 with a slight gap. By pressing in the direction of the arrow, the elastic suppressing portion 61 is bent and the contact 62
contacts the contact portion 54 and releases the pressing force from the elastic suppressing portion 61, the elastic suppressing portion 61 returns to its original state due to elastic restoring force, and the contact 62 is accordingly separated from the contact portion 54. do.

When the leg portion 20 on one side edge of the lens 2 configured as described above is inserted into the through hole 12 on one side edge of the housing 1, since <a<A as described above, the engaging protrusions 11, 21 The contact surfaces 13 and 23 are first brought into contact before the contact surfaces 1 and 23 are brought into contact with each other.
3.Applying an external force to the engaging protrusion 1 against the stress of 23
1 and 21 are engaged, and the flange portion 24 of the lens 2 is inserted into the locking portion 14 of the housing.

Then, as described above, the contact surface 13.23 is slightly bent and its elastic restoring force causes the engagement protrusions 11 and 21 to elastically engage with each other, so that the side edge of the lens 2 on the side where the leg portion 20 is located The side edge on the opposite side of the lens rises, and along with it, the protrusion 2 of the lens
5 rests on the bushing contact 6, a gap B is formed in the area where the housing 1 and the lens 2 are not engaged by the engaging protrusions 11 and 21, and the lens 2 is connected to the housing 1. The flange 2 of the lens 2 is supported so as to be swingable about the engagement portion between the engagement protrusions 11 and 21 as a fulcrum.
4 is locked in the locking part 14 of the housing 1.

The interior light of the present invention thus formed is installed upside down on the ceiling or the like 8 in the vehicle interior, and the electrical component 51 is connected to a power source.

Since the vehicle interior light of the present invention has the above-described configuration, when the side edge of the lens 2 opposite to the side having the leg portion 20 is pressed as shown by the white arrow, the protrusion 25 contacts the bush contact 6. When pressed, the contact point 62 comes into contact with the contact portion 54 of the printed wiring 53 to turn on or off the bulb 3, change the illuminance, etc. Therefore, the above-mentioned operations can be performed quickly and easily even at night or in the dark. It can be carried out.

Furthermore, since there is no protruding part such as a switch knob, it is safe and the space of the lamp itself can be reduced.

Moreover, since the engaging protrusion 21 of the lens 2 is engaged with the engaging protrusion 11 of the housing 1, the lens 2 can be reliably moved relative to the housing 1 without any play, without using a special hinge mechanism. And it can be supported swingably.

That is, since the gap a between the lower surface of the engagement protrusion 11 of the housing 1 and the contact surface 13 is made slightly smaller than the gap A between the upper surface of the engagement protrusion 21 of the lens 2 and the contact surface 23, the lens 2
When the is attached to the housing 1, the contact surface 13.23 contacts first before the engagement protrusions 11 and 21 engage, and further external force is applied against the stress of this contact surface 13.23. By engaging the engaging protrusions 11 and 21 with the
21 are elastically engaged with each other by the elastic return force on the contact surfaces 13 and 23, and due to the elastic engagement of the engagement protrusions 11 and 21, the lens 2 is moved in the vertical direction (
The lens 2 is supported without any play in the direction of the swinging force of the lens 2, and the edge opposite to the engaging protrusion 11.21 is raised in the opposite direction to the white arrow to form a gap B for switching operation,
Furthermore, even with this gap B, the lens 2 is supported with no play in the left-right direction with respect to the housing 1 (in the direction perpendicular to the direction of the swinging force of the lens 2), and therefore a special hinge mechanism is not required.

In the above embodiment, two bush contacts 6 are used, but one bush contact 6 may be used.

In addition, the engaging protrusion 11.2 of the housing 1 and the lens 2
The shape of 1 is not limited to the above-mentioned embodiment.

[Brief explanation of drawings]

The attached drawings show an embodiment of the vehicle interior light according to the present invention, and FIG. 1 is a plan view, and FIGS. 2 and 3 are cross-sectional views taken along the line ■-■ and the cross-sectional view taken along the line ■-l in FIG. , FIG. 4 is a plan view of the housing, FIG. 5 is a sectional view of the lens, FIG. 6 is a side view of the lens, and FIG. 7 is an enlarged view of the engagement state of the engagement protrusion between the housing and the lens. FIG. 8 is a partial front view of the printed circuit board, and FIGS. 9a and 9b are a plan view and a sectional view of the bushing contact. DESCRIPTION OF SYMBOLS 1... Housing, 11... Engaging protrusion, 13... Contact surface, 2... Lens, 2
1... Engaging protrusion, 23... Contact surface, 3
...Valve, 40...Holder, 50
...Printed circuit board, 51...
Electrical components, 54...Contact portion, 6...Bush contact, 62...Contact element, 7...
...Caulking pin, 8...Ceiling.

Claims (1)

[Scope of utility model registration request] It consists of a housing, a lens attached to the opening of the housing, a bulb held in the housing, and a printed circuit board having control contacts for the bulb, and the lens and the lens are attached to one side edge of the housing. an engaging protrusion and an abutting surface, and a locking part for pressing the flange of the lens from above is formed on the other side edge, and the lens has an engaging protrusion and an abutting surface on the other side thereof, and a locking part that presses the flange of the lens from above; An engagement protrusion that engages with the protrusion and an abutment surface that abuts the abutment surface of the housing before the engagement protrusion engages with the engagement protrusion of the housing, and the other side edge. A printed circuit board having a flange portion that engages with the locking portion of the housing and a switching protrusion that hangs down inside the flange portion, and a contact portion inside the housing on the side opposite to the side having the engagement protrusion portion. At the same time, a bush contact made of an elastic member that closes the contact part when pressed by the protrusion of the lens is installed on the contact part, and the engagement protrusion between the housing and the lens is engaged, and the housing is fixed. The lens is assembled into the housing with the side edge side having the flange raised above the housing due to the restoring elasticity of the contact surface, and the flange of the lens being in contact with the inner surface of the locking part of the housing. Interior lights for vehicles.