JPH0523721Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a locking knob for locking and unlocking an automobile door.

(Prior Art) Some door locking knobs lock or unlock the door by pushing or pulling up. In this system, a lock device built into the door panel is connected to a knob via a link, and the lock device is operated by raising and lowering the link. Therefore, since the structure is such that the link can be raised or lowered by raising or lowering the knob, there is a risk that the locked state may be illegally released. For this reason,
Knobs equipped with tamper-proofing means have been developed in the past.

The one in FIG. 8 is an example. Briefly, an inner knob 31 connected to a link 30 is housed inside. When unlocking the door, the door cannot be operated unless both knob buttons 32 are pinched and the inner knob 31 is pinched to integrate them.
In other words, even if there is an unauthorized operation, only the outer side will be lifted up against the spring 33, and the inner inner knob 31
is not manipulated.

(Problem to be solved by the invention) In this way, unauthorized manipulation is avoided, but there is room for improvement in this example.
It's a noise problem. This is because it is necessary to provide some clearance between the inner knob 31 and the knob casing 34 in order to reduce the sliding resistance during operation. Therefore, when vehicle vibrations are transmitted, it may rattle, which may cause abnormal noise.

This invention is intended to prevent the occurrence of abnormal noise in the door locking knob.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a hollow knob casing that is assembled into the window frame of an automobile door so that it can be pushed and pulled up, and an inner knob which is housed so as to be vertically displaceable and connected via a link to a door lock device built into the door; and an inner knob which is assembled to the knob casing and can be engaged with the inner knob by pressing the knob casing. The structure includes a knob button and a return spring that is interposed between the inner knob and the knob casing and urges the knob casing to press against the inner knob, and also prevents vertical and horizontal rattling of the inner knob. In order to control this, the surfaces in the upper part of the inner knob that come into contact with the knob casing in pressure contact with the return spring are formed into sloped surfaces that face each other.

(Function) According to the above configuration, the knob casing is urged in the downward direction by the spring force of the return spring. Therefore, the inner knob presses against the knob casing at its upper portion. Therefore, the inner knob is first restricted from rattling in the vertical direction. Further, since both of the abutting surfaces are inclined surfaces, the inner knob is pressed against the inner wall surface of the knob casing by the action of a component of the pressing force. As a result, the inner knob is prevented from rattling not only in the vertical direction but also in the horizontal direction.

(Example) Hereinafter, an example embodying the present invention will be described in detail with reference to the drawings.

1 to 5 show a first embodiment of the present invention.

In the first embodiment, the locking knob K is attached to the window frame of the door. A frame-shaped bezel 1 is fitted into the window frame portion, and the knob casing 2 of the locking knob K can be vertically pulled up or pushed into the door panel P through this bezel 1. It is inserted as follows. In order to prevent the knob casing 2 from falling off, a pair of stopper pieces 3 protrude from the lower part of the knob casing 2, so that the knob casing 2 is caught on the opening edge of the bezel 1 when the knob casing 2 is pulled out. The entire knob casing 2 is formed into a rectangular tube shape, and the lower surface is open. Then, the inner knob 4 is inserted from here and stored in a vertically movable state. Further, the lower surface of the knob casing 2 is closed by a cover plate 5. The cover plate 5 has a pair of locking pieces 6, and is fixed by engaging the locking pieces 6 with respective grooves 7 formed on both sides of the casing 2.

A link 8 from a door lock device (not shown) built into the door panel P is screwed into the inner knob 4 through the cover plate 5 to a predetermined depth. Here, the door lock device is constructed such that the door is unlocked and locked by raising and lowering the link 8. In addition, inner knob 4
A return spring 9 is interposed between the cover plate 5 and the cover plate 5. The upper part of the return spring 9 is fitted into a cylindrical part 10 formed at the lower part of the inner knob 4. Then, the knob casing 2 is pushed down.

On the other hand, the upper side of the knob casing 2 bulges out toward the indoor side, and a window 12 for assembling the knob button 11 is opened in the front of this bulge. A projecting piece 13 is formed in the upper part of the knob casing 2 horizontally toward the window part 12. The projecting piece 13 is formed with a predetermined gap between the rear surface and the top surface of the knob casing 2, and the knob button 11 is attached using the gap 14 between the projecting piece 13 and the top surface. That is, a bent insertion tongue piece 15 is extended from the upper end of the knob button 11 so as to exert a spring property, and the tongue piece 15 is bent and formed so that it can be pressed into the gap 14 by the elastic force. Retained. The knob button 11 is adapted to the window part 12, and its free end side (lower end side) can be bent and deformed in the pushing direction, and in the pushed state, a locking edge 16 formed by folding back on the free end can be engaged with a stepped portion 17 recessed in the opposing surface of the inner knob 4.

By the way, the upper surface of the inner knob 4 has a receiving surface 18 that is inclined toward the window 12 side of the knob casing 2.
is formed. A sheet-like cushion material 19 is pasted here. On the other hand, a stopper surface 20 is formed on the side of the overhanging piece 13 in parallel to the receiving surface 18 . As mentioned above, since the entire knob casing 2 is pressed down by the return spring 9, the stopper surface 2
0 and the inner knob 4 are always in pressure contact with each other via the cushion material 19.

Subsequently, the operation and effect of the first embodiment with the above configuration will be specifically explained.

First, an explanation will be given of the operation when an unauthorized attempt is made to open the door while the door is in the locked state shown in FIG.

In this locked state, the locking edge 16 of the knob button 11 is not engaged with the inner knob 4, so the inner knob 4 is free. Therefore, even if the knob casing 2 is lifted by an unauthorized method, only the knob casing 2 will be lifted against the return spring 9 (state in FIG. 3). In other words,
Since the inner knob 4 is left in its original position, the door will still be held locked.
In other words, the illegal release of the lock ends up in vain.

To properly release the lock, first push in the knob button 11 to engage the locking edge 16 with the stepped portion 17 of the inner knob 4. If the knob casing 2 is lifted in this state, the inner knob 4 will also be pulled up at the same time, and the door lock device (not shown) will be unlocked by the lift of the link 8 (state in FIG. 5).

In addition, when locking the door, the entire knob casing 2 is pushed down so that the stopper surface 20 presses the head of the inner knob 4, so that the door lock device is locked by lowering the link 8. do.

By the way, in the locking knob K of the first embodiment, rattling is regulated in both the locked state shown in FIG. 1 and the released state (state shown in FIG. 5). That is, as a result of the knob casing 2 being constantly pressed down by the return spring 9, the stopper surface 20 and the receiving surface 18 are pressed into contact with each other via the cushion material 19. For this reason,
The inner knob 4 is prevented from rattling in the vertical direction, and is also pressed against the back wall surface of the knob casing 2 by the force in the horizontal direction. It is regulated. In this way, even if vehicle vibrations are transmitted, rattling between the knob casing 2 and the inner knob 4 is prevented, and the generation of abnormal noise can be suppressed.

6 and 7 show a second embodiment of the present invention.

First, to explain the structure, the lower part of the knob casing 2 is narrowed from both left and right sides to form a rectangular tube part 2a. Moreover, a pair of retaining pieces 3 are formed on the front and rear surfaces thereof and are allowed to be elastically deformed in the front and rear directions. Furthermore, a return spring 9 is attached to this square tube portion 2a, and is applied to the bezel 1 and the retaining piece 3, thereby urging the knob casing 2 as a whole in a downward direction.

The inner knob 4 is housed in the knob casing 2 in a vertically movable manner, and a link 8 is screwed into the inner knob 4. Further, a receiving surface 18 that comes into contact with the stopper surface 20 of the knob casing 2 is formed at the upper part of the front surface of the inner knob 4. Note that a cushion material may be interposed between both surfaces 20 and 18 in the same manner as in the first embodiment. Furthermore, receiving surface 1
A stepped portion 17 is formed at the top of the inner knob 8, so that the top of the inner knob 4 has a hook shape.

On the other hand, the top of the knob casing 2 is the knob button 1.
1 can be placed over it. Further, on the back side of this part, an opening 22 is formed that can be engaged with the hook 21 of the knob button 11, which is formed in a downward U-shape, and on the other hand, a window 12 is opened on the front side. ing. The knob button 11 is allowed to bend and deform, and its locking edge 16 can be engaged with the stepped portion 17 of the inner knob 4.

Note that the other configurations are the same as in the first embodiment.

The second embodiment is constructed as described above, and the door is locked and unlocked by the same operations as in the first embodiment.
That is, if the knob casing 2 is pushed in from the state shown in FIG. 6, it is locked, and to release the lock, the knob button 11 is pushed in and pulled up with the locking edge 16 and step part 17 engaged. Bye. In addition, even if a fraudulent act is committed, only the knob casing 2 will be lifted and the inner knob 4 will be lifted up.
remains in its original position and remains locked.

Further, due to the spring force of the return spring 9, the stopper surface 20 and the receiving surface 18 are in pressure contact, and the inner knob 4 is pressed against the knob casing 2. Therefore, as in the first embodiment, the inner knob 4 is prevented from rattling in the vertical and horizontal directions in the drawing, and the accompanying noise is also eliminated.

(Effects of the Invention) As explained above, the present invention is characterized in that the contact surfaces between the inner knob and the knob casing are sloped surfaces. Therefore, since the inner knob is pressed by the spring force of the return spring, vertical rattling is firstly restricted. Further, this spring force generates a component force in the horizontal direction due to the inclination of the inclined surface, presses the inner knob against the inner wall surface of the knob casing, and also restricts rattling in the horizontal direction. As a result, abnormal noise caused by vehicle vibration can be eliminated.

[Brief explanation of the drawing]

Figures 1 to 5 show the first embodiment of the present invention. Figure 1 is a sectional view of the locking knob in the locked state of the door, Figure 2 is an exploded perspective view of the locking knob, and Figure 3 is an unauthorized locking knob. Sectional view showing the state when attempting to unlock the door, No. 4
Fig. 5 and Fig. 5 are cross-sectional views showing the operation state when normally unlocking the door, Fig. 6 and Fig. 7 show the second embodiment of the present invention, and Fig. 6 shows the door lock. 7 is an exploded perspective view of the locking knob, and FIG. 8 is a sectional view of a conventional locking knob. 2...Knob casing, 4...Inner knob,
9...Return spring, 18...Receiving surface, 20...Stopping surface.

Claims (1)

[Scope of utility model registration request] A hollow knob casing that is assembled into the window frame of an automobile door so that it can be pushed and pulled up, and a door lock device that is housed within the knob casing so as to be able to be moved vertically and that is built into the door through a link. The inner knob that is connected to
a knob button assembled to the knob casing and capable of engaging with the inner knob by pressing the knob button;
A return spring is interposed between the inner knob and the knob casing to urge the knob casing to press against the inner knob, and also controls rattling of the inner knob in the vertical and horizontal directions. In order to achieve this, a door locking knob for an automobile is characterized in that, at the upper part of the inner knob, the surfaces that come into pressure contact with the knob casing and the return spring are sloped surfaces that face each other.