JPS5915552Y2 - Anti-theft door lock device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a door locking device for a vehicle that has a door locking button on the interior side of the door, and prevents the door locking button from being pushed up and unlocked due to the intrusion of a wire, etc. The purpose of this is to prevent vehicle theft.

Fig. 1 shows this type of door locking device that has been commonly used in the past.A door locking button 2 provided on the indoor side of the door 1 has a button at the bottom that is connected to a door locking mechanism (not shown) inside the door. One end of the link arm 3 is connected.

The door locking button 2 is inserted into a cylindrical guide member 4 fixed to the indoor side of the door 1.
The door is configured to be locked by pressing down on the door locking button 2 and unlocked by lifting the door locking button 2.

When the door is locked from the outside with a key, the door locking button moves downward, and when the door is unlocked, it moves upward.

By the way, in this locking device, if a wire or the like is sometimes inserted through the gap between the door glass and the weather strip or the gap in the outside bundle of the door and penetrated into the lower part of the door locking button, and the button is pushed up. The lock may be unlocked, leading to vehicle theft.

Therefore, the present invention provides a shielding plate at the bottom of the guide member to prevent wires and the like from entering the guide member, thereby preventing the above-mentioned inconvenient situation from occurring.

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 2, the guide member 4 is a rectangular cylinder, and an inclined wall 51 is formed from one side of the lower end in the direction of the opposite side, and the inclined wall 51 is formed on the opposite side from a position slightly above the lower end. An inclined wall 52 rising in the direction is formed, and opposing ends of these inclined walls 51, 52 are connected by a vertical wall 53, forming a shielding plate 5 and dividing the interior of the guide member 4 into upper and lower sections.

The shielding plate 5 also has semicircular openings 61.62 formed at the centers of opposite edges of the inclined walls 51.52, and vertical grooves formed in the vertical wall 53 connecting the openings 61.62. A link arm guide hole 6 is provided.

This guide hole 6 has a minimum size through which the link arm 3 can be inserted and freely move up and down.

The guide member 4 having the shielding plate 5 is integrally molded from synthetic resin.

One end of the link arm 3, which is inserted and connected to the locking mechanism inside the door, is inserted into the link arm guide hole 6 from below, and its tip is screwed onto the lower part of the door locking button 2.

In this door lock device, by configuring the guide member 4 as described above, when the wire 7 is inserted from the outside of the door, if it is inserted from the inclined wall 51 side (as shown by the broken line)
Since the gap between the link arm 3 and the opening 61 is very small, it is almost impossible for the user to enter the guide member 4, and even if the user enters from the inclined wall 52 side, the gap between the link arm 3 and the opening 62 is very small. It is difficult to penetrate through the gap, and the door locking button 2 cannot be pushed up in any case.

In the embodiment shown in FIG. 3, the shielding plate 5 of the guide member 4 is formed into a spherical shape and a link arm guide hole 6 is provided in the center thereof, so that the structure is simple and molding is easy.

The embodiment shown in FIG. 4 has upper and lower shielding plates 5a and 5b,
Each has an approximately oval link arm guide hole 6a,
6b is provided.

One end of each of the guide holes 6a, 6b is located in a vertically overlapping position, into which the link arm 3 is inserted.

In this structure, each guide hole 6a, 6b is shaped like a long groove, so that the link arm 3 can be inserted easily.

When the link arm 3 is inserted, even if a wire enters and is inserted upward through the gap in the guide hole 6b, the wire will not penetrate up to the door locking button because the area directly above it is blocked by the shielding plate 5a. It is not possible.

Furthermore, if a third shielding plate having guide holes in the same position as the shielding plate 5b is arranged on top of the shielding plate 5a, and the guide holes of the three stages of shielding plates are different from each other, safety can be further improved. (
Improve even more.

The embodiment shown in FIG. 5 is a split guide member in which a pair of symmetrical members are connected by a thin hinge.

The guide member 4 is composed of half-split members 4a and 4b.

Both members 4a and 4b are plate-shaped, and member 4a has rib-like thick parts 5C and 5f formed on one side of the edge and the center, and member 4b has rib-like thick parts 5C and 5f that correspond to the thick parts 5C and 5f. Thick wall portions 5d and 5h are formed at the portions where the thick wall portions 5d and 5h are formed, and the thick wall portions 5C and 5d are connected along their upper edges by a thin integral hinge 5e.

Note that both members 4a and 4b also have rib-like thick portions on their side edges.

A semicircular notch 6C96d, 6f, 6h is provided on the upper surface side in the center of each thick wall portion 5c, 5d, 5f 95h.
Each has its own form.

Both members 4a and 4b are injection molded and integrally formed in a joined state.

Therefore, when installing this split guide member 4, if both members 4a and 4b are folded so as to face each other in the direction of the thick inner forming surface around the hinge 5e, the corresponding thick parts of both members can be folded. The end faces abut, forming a thin cylindrical shape as a whole.

Inside, the thick parts 5C and 5d form a bottom shielding plate, and the thick parts 5f and 5h form an upper shielding plate.

A circular link arm guide hole 6 is formed in the upper shielding plate by semicircular notches 6f and 6h, and a similar guide hole is formed in the bottom shielding plate by a notch 5c.

Formed by 6d.

In this state, the guide member is installed in the door by being pushed into the guide member mounting hole provided on the inside of the door.

However, it is advantageous if the split-type lever guide member is applied to a guide member having a plurality of shielding plates because it can be easily manufactured.

Therefore, even in the case of the guide member having the embodiment shape shown in FIG. 4, manufacturing is easy if a split mold is applied.

As explained above, the present invention provides a locking device in which a door lock button is provided on the inside of the door, in which a shielding plate is formed on the guide member of the door locking button, and a hole provided in the shielding plate is used to connect the door inner opening. The link arm that connects the door locking button and the door locking button passes through the link arm, so even if you insert a wire from outside the door and try to push up the door locking button to unlock the door, the wire will be guided by the shielding plate of the guide member. Since intrusion into the member is prevented, it is impossible to push up the door locking button, thereby preventing the risk of vehicle theft.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the installation state of a conventional door lock device, FIG. 2 is a diagram showing a first embodiment of the present invention, and FIG. 2A is a plan view.
Figure 2B is a vertical sectional view taken along the line BB in Figure 2Ac7), Figure 3 shows the embodiment of Figure 2, Figure 3A is a plan view, Figure 3B is the same as in Figure 3A. 4 shows a third embodiment; FIG. 4A is a plan view; FIG. 4B is a sectional view taken along line B-B of FIG. 4A; FIG. 5A is a plan view, FIG. 5B is a developed plan view, and FIG. 5C is a sectional view taken along the line CC in FIG. 5B. DESCRIPTION OF SYMBOLS 1... Door, 2... Door locking button, 3... Link arm, 4... Guide member, 5, 5a. 5b... Shielding plate, 6. 6a, 6b...
...Link arm guide hole.

Claims (1)

[Scope of utility model registration request] In a vehicle door locking device, a door locking button connected to a link arm connected to a locking mechanism inside the door is provided on the indoor side of the door, and is locked and unlocked by pushing down or lifting the button, A cylindrical guide member is fixed to the indoor side of the door, a door locking button is vertically movably inserted into the upper opening of the cylindrical guide member, and a shielding plate is formed at the bottom of the guide member to divide the inside of the member into upper and lower parts. At the same time, a guide hole is provided in the center of the shielding plate, and a link arm whose upper end is connected to the door locking button and whose lower end is connected to the door locking mechanism is passed through the guide hole, and a wire or the like is connected to the door locking button. An anti-theft door lock device, characterized in that the shielding plate prevents intrusion into the lower surface of the door lock device.