JPS5820047Y2 - Automobile door lock with lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an automobile door lock having an illumination device for illuminating a key hole of an automobile door.

Generally, when locking or unlocking a car door from the outside, it is first necessary to insert a key into the keyhole of the door lock, but this type of keyhole cannot be used at night or in the dark. It is difficult to confirm the location in some places.

Therefore, conventionally, various automobile door locks have been proposed that have lighting devices that illuminate the keyhole of the door lock by pulling the door handle of the automobile door, making it easier to insert the key into the keyhole. ing.

However, in all of the above conventional devices, the rectangular keyhole of the door lock is illuminated from the periphery;
Although the position of the door lock can only be confirmed, the important shape and direction of the keyhole cannot be sufficiently confirmed, and the objective of facilitating key insertion cannot be fully achieved.

The present invention aims to solve the above-mentioned conventional drawbacks, and makes it possible to clearly identify the shape of the key hole of an automobile door with sufficient luminance, thereby making it easier to insert the key at night. An object of the present invention is to provide a door lock for an automobile having an illumination device as described above.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

Figure 1 shows the side part of a car, where 1 is the car body, 2 is the door,
3 is a door lock provided on the door 2, and 4 is an outer door handle provided on the door 2.

2 to 5 show the structure of the door lock 3, and the second
In the figures, reference numeral 5 denotes a mounting hole for mounting the door lock 3, which is formed in the door outer panel 6, and a cylinder case 7 having an outer end flange portion 7a at the tip thereof is mounted in the mounting hole 5. The outer end flange portion 7a is inserted from the outside of the door outer panel 6 through the rubber backing 8 so as to come into contact with the peripheral edge of the mounting hole 5, and the cylinder case 7 is inserted into the rear surface of the door outer panel 6 of the inserted cylinder case 7. A trident-shaped retaining plate spring member 9 that is pushed in at a substantially right angle to the axial direction of the cylinder case 7 is provided with a locking portion 7c having locking surfaces 7b, 7b facing the outer end flange portion 7a. , 7c are provided.

On the other hand, the three-pronged portions 9a and ga of the leaf spring member 9 have raised portions 9b that are bent and protrude toward the locking surface 7b.
, 9b are provided, and the raised portions 9b, 9b and the locking portion 7c
, 7c, the outer end flange portion 7a of the cylinder case 7 is pressed and held against the door outer panel 6 by engagement with the locking surfaces 7b, 7b, and the cylinder case 7 is attached to the mounting hole 5. .

A cylinder 10 is rotatably held in the cylinder case 7, and a disk-shaped cylinder cap 11 with an elongated keyhole 11a in the center is provided at the outer edge of the door of the cylinder 10. A recessed portion 10a in which claws 11b, 11b protruding from the peripheral edge of the cylinder cap 11 are provided at the end of the outer surface of the door of the cylinder 10.

10a is fitted and secured.

On the other hand, a door lock mechanism (
(not shown) is connected to the lever 12,
The lever 12 is rotated by inserting a key (not shown) into the key hole 11a and rotating the cylinder 10.
The door 2 is configured to be locked or unlocked by the rotation of the lever 12 via a door lock mechanism.

Further, a rectangular shutter plate 13 is disposed on the back surface of the cylinder cap 11 so as to be openable and closable in a shutter housing 10b recessed in the end of the outer surface of the door of the cylinder 10.

The rotation support portion 13a of the shutter plate 13 is connected to the cylinder 10.
is rotatably held in the recess 10d.

One end of a shutter spring 14 housed in a spring housing part 10C recessed in the edge of the outer door surface of the cylinder 10 is in contact with the back surface of the shutter plate 13.
When the key is inserted, the shutter plate 13 is pushed open by rotating around the rotary support portion 13a of the shutter plate 13 against the spring force of the shutter spring 14.

The shutter plate 13 is made of a transparent or semi-transparent resin plate such as polycarbonate that transmits light.

Further, through holes 15 and 16 are formed in the rear surface of the door outer panel 6 of the cylinder 10 and the cylinder case 7, respectively, to penetrate in the radial direction.
16, a light path 17 that guides the light to the back surface of the shutter plate 13.
is in great shape.

The bifurcated portion 9a of the leaf spring member 9 faces the optical path 17.
, 9a are connected to the connecting portion 9C, a mounting portion 9e is provided on the bending portion 9d, and a lamp 18 is attached to the mounting portion 9e via a lamp support rubber 19.
The lamp 18 is configured to illuminate the back surface of the shutter plate 13 through the optical path 17.

Note that 20 is a case cap attached to the front end surface of the cylinder case 7, and has a center hole 20a in the center large enough to insert a key.

Although not shown, the lamp 18 is configured to be energized and turned on by pulling the outer door handle 4.

Therefore, in the above embodiment, when locking or unlocking the door lock 3 at night or in a dark place,
When the outer door handle 4 is pulled, the lamp 18 lights up.
The light from the lamp 18 passes through the optical path 17 to the shutter plate 13.
Irradiates the back side of the

At this time, since the shutter plate 13 is made of a transparent or semi-transparent resin plate that transmits light, the irradiated light passes through the shutter plate 13 and is directed forward through the rectangular keyhole 11a of the cylinder cap 11. By transmitting light to the outside of the door, the rectangular keyhole 11a is clearly illuminated with high luminous intensity.

Therefore, since the position, shape and direction of the keyhole can be clearly identified, the key can be easily inserted into the keyhole 11a.

In the above embodiment, the door lock of this invention is attached to a door provided on the side of the automobile, but the same effect can be obtained even if the door lock of this invention is attached to a door provided at the rear of the automobile.

As explained above, according to the present invention, a shutter storage part is formed on the cylinder on the back side of a disc-shaped cylinder cap having an elongated keyhole in the center, and a resin-made shutter that transmits light is formed in this storage part. By attaching the shutter plate rotatably and illuminating the shutter plate from the back side, the rectangular key hole can be illuminated with high luminous intensity, so the key hole can be illuminated even at night or in a dark place. can be easily inserted into the

In addition, by using a resin shutter plate, it is waterproof and dustproof, does not rust, and the keyhole part appears black even during the daytime, making it easier to confirm the direction of the keyhole. It has the advantage of being able to

[Brief explanation of drawings]

The drawings illustrate the embodiment of the present invention, and FIG. 1 is a side view of an automobile, and FIG. 2 is a longitudinal side view of the door lock of the present invention.
3 is a front view of the same, FIG. 4 is a rear view of the same, and FIG. 5 is an exploded perspective view of the same. 1...Vehicle body, 2...Door, 3...
...Door lock, 4...Outer door handle, 5
......Mounting hole, 6...Door outer panel, 7...Cylinder case, 7a...
Outer end flange portion, 7b...Locking surface, 7C...
...Locking part, 8...Rubber backing, 9...
.... Holding plate spring member, 9a... Two prongs,
9b... Protruding portion, 9C... Connection portion, 9
d...Bending part, 9e...Mounting part, 10
...Cylinder, 10a...Recess, 10
b... Shutter storage section, 10 C...
・Spring storage part, 11... Cylinder cap, 11 a... Key hole, 11 b...
・Claw, 12... Lever, 13... Shutter plate, 14... Shutter spring, 1
5.16...through hole, 17...optical path,
18... Lamp, 19... Lamp support rubber, 20... Case cap, 20 a...
...Central hole.

Claims (1)

[Scope of utility model registration request] A cylinder is rotatably held inside the cylinder case, and a disk-shaped cylinder cap with an elongated keyhole in the center is attached to the side end of the cylinder. A shutter storage part is formed in the cylinder, a resin shutter plate that transmits light is rotatably attached to this storage part, and an optical path communicating with the shutter storage part is opened in the cylinder case and cylinder. A door lock for an automobile having an illumination device, characterized in that an irradiation lamp is provided facing an opening of an optical path of a case.