JPH0335824Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to a door lock device suitable for use in locking a side door of an automobile. The locking lever is configured such that the rotation of the open lift lever causes the pole to be released from the latch and the door can be opened, and the locking is configured such that the transmission of motion from the open link to the open lift lever is interrupted by a locking lever. This invention relates to a door locking device.

(Prior Art) An example of a conventional door lock device of this type is
This is shown in FIGS. In these figures,
1 is a base sub-plate, 2 is a body made of synthetic resin, and 3 is a base plate, which are integrally laminated by three countersunk screws 4 screwed in from the base plate 3 side. On the base sub-plate 1, the open lever 5 is connected to the pin 6.
This open lever 5
is biased to rotate clockwise in FIG. 1 by a spring 7 hooked between the hook portion 5a and the base sub-plate 1. 8 is an open link pivotally connected to the arm 5b of the open lever 5 by a pin 9, and a body 2 is attached to the middle side.
It has a bent portion 8a bent toward the opposite side of the body 2, and has a bent portion 8b bent toward the body 2 at the tip, and a long hole 8c is bored in the side of the tip. 10 is pin 11
A bell crank is pivotally attached to the side portion 1a of the base sub-plate 1 by a bell crank, and one end 10a engages with the arm portion 5c of the open lever 5. 12 is pin 1
A locking lever is pivotally connected to the base sub-plate 1 by a locking lever 3, and a pin 12b implanted in an arm portion 12a is inserted into a long hole 8c of an open link 8. The bending arm 12c restricts the rotation of the locking lever 12, and within the range where the bending arm 12c abuts the stoppers 1b and 1c formed at the end of the base sub-plate 1. , the locking lever 12 rotates. That is, the locking lever 12 rotates within a range in which the bending arm 12c moves between the position shown by the solid line in FIG. 1 (unlocked position) and the position shown by the two-dot chain line (locked position). However, for this rotation, the arm portion 12d.
Due to the action of a spring 14 hooked between the base sub-plates 1, it is a so-called snap action. Therefore, the bent arm portion 12c of the locking lever 12 does not stop between the position shown by the solid line and the position shown by the two-dot chain line.
At this intermediate position, it is rotationally biased in either direction and selects either the position shown by the solid line or the position shown by the two-dot chain line. Reference numeral 15 denotes a substantially L-shaped open lift lever, which has a contact bending part 15a at one end, an extension part 15b at the other end, and a circular hole 15c in the middle part of the extension part 15a. It is drilled, and there is a circular hole 1 in the corner.
A long hole 15d extending in the direction of 5c is bored (see FIG. 4). A pin 16 fixed to the base sub-plate 1 is inserted into this elongated hole 15d, and the open lift lever 15 can rotate around its corner and at the same time can slide in the longitudinal direction of the elongated hole 15d. It's becoming like that. Further, the bent portion 15a of the open lift lever 15 is configured so that it can come into contact with the bent portion 8b when the open link 8 moves from the position shown in FIG. 1 in the direction of the locking lever 12. Due to the movement of the open link 8 after contact, the open lift lever 15
is designed to rotate counterclockwise in FIG. 1 about the pin 16. Further, the extending portion 15b is arranged to be close to the bent portion 8a when the open link 8 comes to the position shown by the two-dot chain line. Furthermore, a pin 17 that passes through the elongated hole 1d of the base sub-plate 1 and reaches into the body 2 is caulked into the circular hole 15c.
As is clear from FIG. 3, inside the body 2 there is a latch 19 pivotally connected to the inner wall of the body 2 by a pin 18, and a pin 19 implanted in the latch 19.
a spring 20 that biases the latch 19 to rotate in the engagement/unlocking direction via c; a pawl 21 rotatably supported by a center pin 25 caulked to the base sub-plate 1; A spring 22 that biases the striker 23 to rotate, a slider 24 that removes the play of the striker 23 when it is engaged with the latch 19, and the like are provided. The space between the body 2 and the base plate 3 in which these are housed is formed to be slightly deeper than the thickness of the pole 21, and the base plate 3 receives and supports the center pin 25 through its through hole. A circular hole 21a is bored in the pawl 21, and the tip of the pin 17 implanted in the open lift lever 15 is loosely inserted into the circular hole 21a. As a result, the pole 21 is moved to the open lift lever 1.
5, and the rotation range is the same as the open lift lever 15.
7 is limited to the range where it contacts the inner wall of the elongated hole 1d.
Note that the arm portion 10b of the bell crank 10 is a rod 26.
The extension of the pin 9 is connected by a rod 27 to an outside handle (not shown) of the door. Further, the arm portion 12d of the locking lever 12 is connected to a knob (not shown) by a rod 28, and the arm portion 12e is connected to a key cylinder (not shown) by a key rod 29.

The door lock device having the above configuration is normally installed between the outer panel and the inner panel of the door in the same vertical relationship as shown in Fig. 1 (note that the striker 2
3 is fixed to the vehicle body side). Incidentally, it is possible to insert an object (for example, a wire) between the door glass and the outer panel, and for this reason, the door lock device that is locked at the tip of the object (in this case, the open link 8 is connected to the two points in FIG. 1). (located at the dashed line)
Open lift lever 15 (contact bending part 15
a) can be pushed from the open link 8 side approximately downward in FIG. 1, that is, in the direction of arrow Y. When this depression is performed, the open lift lever 15 rotates in the counterclockwise direction in FIG. 1, the pawl 21 is disengaged from the latch 19, and the lock is unlocked. Therefore, there have been many incidents in which people take advantage of this defect to unlock the door lock device, open the door using the outside handle, and steal items inside the vehicle or the vehicle itself.

(Purpose of the invention) The present invention was devised in view of the above-mentioned problems, and its purpose is to realize a door lock device capable of preventing the above-mentioned theft by adding small and inexpensive parts.

(Structure of the invention) The invention that achieves the above object transmits the movement of the inside handle and the outside handle to the open lift lever via the open link,
A door locking device configured to allow the door to be opened by separating the pole from the latch by rotating the open lift lever, and locking the door by interrupting the transmission of motion from the open link to the open lift lever using a locking lever. In the above, a barrier member for preventing objects, etc. from entering from the open link side toward the abutting bent portion of the open lift lever is provided near the abutting bent portion. This is a characteristic feature.

(Example) Hereinafter, an example of the present invention will be described in detail using FIG. 6.

Figure 6 shows the main parts of the embodiment in the locked state, and parts with the same symbols as in Figures 1 to 5 and parts not shown in Figure 6 are approximately the same as in Figures 1 to 5. be. The difference between this embodiment and the conventional device is that from the open link 8 side toward the contact bending portion 15a of the open lift lever 15 (in the Y direction)
In order to prevent objects from entering, a barrier member 40 is fixed on the base sub-plate 1 near the abutting bent portion 15a. The height of this barrier member 40 in the direction perpendicular to the plane of the paper in FIG. 6 is selected as high as possible without blocking the movement of the open link 8, and the width in the left and right direction in FIG. The size is selected to be able to perform its functions. Since this barrier member 40 is installed near the abutting bent portion 15a, its width may be narrow, and the barrier member 40 may be small in size and inexpensive. The barrier member 40 may be made of any material such as metal or plastic, and may be fixed to the base sub-plate 1 by using screws, locking by fitting, or using adhesive. Any means such as locking may be used. Of course, it may be formed integrally with the base sub-plate 1, or may be formed integrally with other members such as the body 2 or the base plate 3.

According to such a configuration, even if an object or the like is inserted, the barrier member 40 prevents the open lift lever 15 from reaching the abutting bent portion 15a. Therefore, no situation arises where the lock is unlocked.

(Effects of the Invention) As explained above, according to the present invention, since unlocking can be prevented by the barrier member, theft can also be naturally prevented. Moreover, since the barrier member is installed near the abutment bending portion of the open lift lever, its width may be narrow and the shape may be small. Therefore, a structure for preventing theft can be realized by adding inexpensive parts.

[Brief explanation of the drawing]

Figure 1 is a front view of a conventional door lock device, Figure 2 is a front view of a conventional door lock device;
The figure is a right side view of the door lock device shown in FIG. 1, FIG. 3 is a rear view of the door lock device shown in FIG. 1, and FIG. 4 is an exploded perspective view showing the main parts of the door lock device shown in FIG.
FIG. 5 is a sectional view taken along the line A-A in FIG. 1, and FIG. 6 is a front view showing a main part of an embodiment of the present invention. 1...Base sub-plate, 2...Body, 3
...Base plate, 5...Open lever, 8
...Open link, 10...Bell crank, 1
2... Locking lever, 15... Open lift lever, 15a... Bending portion for contact, 19... Latch, 21... Pole, 40... Barrier member.

Claims (1)

[Scope of utility model registration request] The movement of the inside handle and the outside handle is transmitted to the open lift lever via the open link, and the pole is separated from the latch by rotation of the open lift lever to open the door. In a door locking device that uses a locking lever to interrupt the transmission of motion from the open lift lever to the open lift lever, objects such as objects are prevented from entering from the open link side toward the contact bending portion of the open lift lever. A door lock device characterized in that a barrier member is provided near the abutment bending portion.