JPS581564Y2 - Automobile door lock with lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automobile door lock having an illumination device for illuminating the key hole of an automobile door, and particularly to an improvement in the mounting structure of a lamp for illuminating the key hole.

Generally speaking, in order to lock or unlock 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. Because it is difficult to confirm the position of the car door, conventional methods have been to pull the door handle of the car door (7 steps 1) and illuminate the key hole of the door lock to locate the key in key hole 1. Various automobile door locks have been proposed that have lighting devices that facilitate insertion.

However, in the above-mentioned conventional type, the lamp for keyhole illumination is mounted directly on the cylinder case, which increases the size of the cylinder case. Since the shapes of the lamps are different, the doors cannot be shared, and vibrations from the vehicle body and opening and closing of the doors are directly transmitted to the lamps, resulting in a short lamp life.

The present invention was made to eliminate such conventional drawbacks, and by making the holding plate spring member for holding the door lock on the door also serve as a lamp holder,
To provide a door lock for an automobile having a lighting device which can be manufactured at low cost without increasing the size of a cylinder case, allows a conventional door to be used as is, and improves the lifespan of a lamp.

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 an embodiment of the door lock 3,
Reference numeral 5 denotes a mounting hole formed in the door lock mounting portion of the door outer panel 6, and a cylinder case 7 having an outer end flange portion 7a at its tip is inserted into the mounting hole 5, and the outer end flange portion 7a is attached to the door lock. Door outer panel 6 around the mounting hole 5 from the outside of the outer panel 6 through the rubber backing 8
It is inserted in contact with the

Door outer panel 6 of the inserted cylinder case 7
A bifurcated retaining plate spring member 9 is disposed on the back surface of the cylinder case 7 and is pushed in substantially perpendicularly to the axial direction of the cylinder case 7.
A locking portion 7C57 having locking surfaces 7b, 7b facing a
C is provided.

On the other hand, as shown in FIG. 6, the two prongs 9a, 9a of the leaf spring member 9 are provided with protrusions 9b, 9b that are bent and protrude toward the locking surfaces 7b. and the raised portions 9b, 9b are connected to the locking surfaces 7b, 7 of the locking portions 7c, 7c.
b, so that the outer end flange portion 7a of the cylinder case 7 is pressed and held against the door outer panel 6, and the cylinder case 7 is attached to the attachment hole 5.

A cylinder 10 is rotatably held within the cylinder case 7, and a cylinder cap 11 having a rectangular keyhole 11a is provided at the end of the outer surface of the door of the cylinder 10, and the cylinder cap 11 has a peripheral edge thereof. The door is attached by fitting claws 11b, 11b protruding from the cylinder 10 into recesses 10a, 10a provided at the end of the outer surface of the door of the cylinder 10.

Additionally, a door lock mechanism (
(not shown) is connected to the lever 12,
By inserting a key (not shown) into the cylinder 10 through the key hole 11a and rotating the cylinder 10, the lever 12 rotates, and the rotation of the lever 12 locks the door through the door lock mechanism. 2 is configured to be locked or unlocked.

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

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 a key is inserted into the key hole 11a, the shutter plate 13 is rotated about the rotational support part 13a of the shutter plate 13 against the spring force of the shutter ring 14, thereby being pushed open. .

The shutter plate 13 is formed of a transparent or semi-transparent resin plate such as polycarbonate.

On the other hand, through holes 15 and 16 are formed in the radial direction in the rear surface of the door outer panel 6 of the cylinder 10 and the cylinder case 7, respectively. An optical path 17 leading to the back surface of the plate 13 is formed.

Further, as shown in FIG. 6, a connecting portion 9C that faces the optical path 17 and connects the three-pronged portions 9a, 9a of the leaf spring member 9 to each other has a portion projecting rearward from the upper end of the connecting portion 9C. A new bent portion 9d is provided in succession, and the bent portion 9d
A mounting portion 9e is connected to the rear end of the bent portion 9d and extends downwardly, and a lamp 18 is mounted to the mounting portion 9e via a lamp support rubber 19.

The lamp 18 is provided so as to be turned on by being energized by pulling the outer door handle 4.
The back surface of the transparent or translucent shutter plate 13 is irradiated with the light of 8 through the optical path 17, and the irradiated light passes through the shutter plate 13 and passes through the rectangular keyhole 11a of the cylinder cap 11 to the front ( By transmitting light to the outside of the door, the key hole 11a is illuminated with high luminous intensity.

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

Therefore, in the above embodiment, when assembling the door lock 3, after inserting the cylinder case 7 into the mounting hole 5 of the door outer panel 6, the plate spring member 9 with the lamp 18 attached to the mounting portion 9e is inserted into the cylinder case 7. By pushing the lamp 18 at right angles to the door lock 3, the lamp 18 is attached to the door lock 3 at the same time, so the lamp 18 can be attached very easily. Since the spring member 9 is also used, the cost can be reduced, and the cylinder case 7 can be made small, so that the conventional door 2 can be used as is.

Furthermore, since the lamp 18 is supported by the leaf spring member 9, vibrations from the vehicle body or when doors are opened/closed are not directly transmitted to the lamp 18, so the lifespan of the lamp 18 can be improved, and the heat dissipation of the lamp 18 can be improved. There are two ways to improve the characteristics.

Moreover, FIG. 7 shows a door lock 3' which is another embodiment of the present invention. Instead, a shutter plate 13' made of an ordinary iron plate is used, and a light guide plate 21 made of transparent or semi-transparent resin having a rectangular key hole is interposed between the shutter plate 13' and the cylinder cap 11, The light from the lamp 18 is guided to the light guide plate 21 through an optical path 17' provided in the cylinder case 7 and the cylinder 10, and the rectangular key hole 11a of the cylinder cap 11 is illuminated through the light guide plate 21. 7 things.

Also in this example, the lamp 18 is mounted and supported by the mounting portion 9e of the leaf spring member 9 that holds the door lock 3' on the door 2.

The rest of the structure is the same as that of the above embodiment, the same parts are given the same reference numerals, and the explanation thereof will be omitted, and the same effects as those of the above embodiment are achieved.

As explained above, according to the present invention, by making the plate spring member for holding the door lock also serve as the lamp holder, the cylinder case can be downsized, and the conventional door can therefore be used as is. This makes it possible to share the door with a door that does not have a lighting device, and also to reduce costs.

In addition, it is easy to attach the lamp to the leaf spring member, and vibrations from the vehicle body or when opening and closing doors are not directly transmitted to the lamp, so the lifespan of the lamp can be improved.
It also has the advantage of improving the heat dissipation characteristics of the lamp.

[Brief explanation of drawings]

The drawings illustrate embodiments of the present invention, with FIG. 1 being a side view of an automobile, and FIGS. 2 to 6 showing one embodiment;
FIG. 2 is a longitudinal cross-sectional side view, FIG. 3 is a front view, FIG. 4 is a rear view, FIG. 5 is an exploded perspective view, FIG. 6 is a perspective view of the holding leaf spring member, and FIG. FIG. 7 is a vertical cross-sectional side view of a main part showing another embodiment. 1... Vehicle body, 2... Door, 3, 3'.
... Door lock, 4 ... Outer door handle, 5 ... Mounting hole, 6 ... Door outer panel, 7 ... Cylinder case, 7a...
... Outer end flange part, 7b ... Locking surface, 7C
...Latching part, 8...Rubber backing,
9... Holding plate spring member, 9a... Bifurcated portion, 9b... Protruding portion, 9C... Connection portion, 9d...・Bending part, 9e... Mounting part, 10... Cylinder, 10 a... Concave part, 10b... Shutter storage part, 10 C.
... Spring storage part, 11 ... Cylinder cap, 11 a ... Key hole, 11 b.
...Claw, 12...Lever, 13゜13'
...Shutter plate, 14...Shutter spring, 15.16...Through hole, 17.
17'... Light path, 18... Lamp, 1
9... Lamp support rubber, 20... Case cap, 20 a... Center hole, 21...
···Light guide plate.

Claims (1)

[Scope of utility model registration request] In an automobile door lock having an illumination device that illuminates a key hole of an automobile door, the door lock is inserted into a mounting hole opened in a door lock mounting portion of a door outer panel, and the outer end 7 flange portion is in contact with the mounting hole. A cylinder case and a trident-shaped retaining leaf spring member that is pushed into the rear surface of the door outer panel of the inserted cylinder case at a substantially right angle to the cylinder case axis are provided, and the cylinder case faces the outer end flange. While providing a locking part having a locking surface,
The three-pronged portion of the leaf spring member is provided with a raised portion that is bent and protrudes toward the locking surface so as to press and hold the outer end flange portion of the cylinder case against the door outer panel. A new bent part is provided in succession at the connecting part that connects the three-pronged parts to each other, and a mounting part is provided in the bent part to which a lamp for illuminating the key hole part is attached via an optical path provided in the cylinder case. An automobile door lock with an illumination device.