JPS6020780Y2 - Lever swing support structure - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lever swing support structure that swingably supports a lever.

Conventionally, as a member for swingably supporting a lever, for example, as shown in FIG. 1, a pin shaft 1 having a shaft portion 11 and a head flange 12 is swaged onto a base plate 2 and protrudes, and has a cylindrical shape. There was one in which the fitting hole 31 of the lever 3 was fitted into the shaft portion 11 of the lever 3 to swingably support the lever.

Alternatively, as shown in FIG. 2, the shaft portion 1 may be hollow.
A hollow pin shaft 1a having a head flange 12a and a head flange 12a is protruded from the base plate 2, and is inserted into the fitting hole 31 of the lever 3.
There was one in which the lever 3 was supported in a swingable manner by being fitted onto the shaft portion 11a.

However, since the conventional shafts mentioned above all have cylindrical shafts, they must be processed by cutting or header processing, resulting in high processing costs and disadvantages in terms of cost. If this happens, the cost will increase further due to the difficulty of machining.Furthermore, as shown in FIG. Since the pin shaft 1 is cylindrical, there is no handhold for locking one end 41 of the coil spring 4, so a separate engagement groove 1 is required.
4, and then caulking that part, and as shown in FIG. When the lever 3 swings, there are problems such as the biasing force changing or wobbling.

The present invention was developed in view of the above-mentioned problems, and instead of using a cylindrical shaft, the lever is swingably supported by a flat lever swing support member that can be easily formed by press working. This solves the above problems.

Embodiments of the present invention will be described below based on the drawings.

Note that the same parts are given the same reference numerals. FIG. 5 shows an application of the present invention to a door lock device A for an automobile.

That is, a detent member A is attached to one end A2 of a pole member (not shown) that locks or releases a latch (not shown).
1 is fixed to the detent member A1, and has an engaging portion A4 that engages with the engaging portion A3 of the detent member A1 when the lock is unlocked, and is provided with a sub-lever A5 that vertically moves in the downward direction of the road in the figure.

The figure shows the locking position, and the engaging portion A3. A4 is designed so that it does not engage even if the sub-lever A5 moves vertically.

An outside lever A6 is connected to the upper part of the sub-lever A5 via a pin shaft A7, and a long hole A8 is bored in the lower part of the sub-lever A5.
le is connected.

And outside lever A6 and lock/unlock lever AI
O is swingably supported by the base plate 2 by a lever swing support member 5.

6 to 9 regarding the structure near the lever swing support member 5.
This will be explained with reference to the figures.

The lever swing support member 5 has a fitting hole 2 bored in the substrate 2.
1, a fitting portion 51 that is protruded from the substrate 2 by being fitted and caulked, a supporting portion 52 with a rectangular cross section continuous to the fitting portion 51, and a wide portion 53 at the head of the supporting portion 52. It has a symmetrical and flat plate shape.

A notch 54 is provided in the contract extending from the wide portion 53 to the support portion 52 to prevent galling.

An engagement hole 32 formed in the lever 3 is inserted into and engaged with the support portion 52 .

The engagement hole 32 is an intermediate portion 3 that connects the bases of the sector shapes 33, 33.
4 has a narrow drum shape.

As shown in FIGS. 7 and 8, the lever swing support member 5 holds the lever 3 between the wide part 53 and the board 2, so that the fitting part 51 fits into the fitting hole of the board 2. 21, and the tip is crushed and caulked to protrude from the substrate 2.

As shown in FIG. 9, when the lever 3 is swung, the lever 3
The engagement hole 32 and the support part 52 of the lever swing support member 5 change angles relatively, and the lever 3 has an opening angle B of the fan shape 33.
can only be rocked.

FIG. 10 shows another embodiment of the present invention, in which the coil spring 4 is wound around the head 55 of the lever swing support member 5, and the end 43
is formed into a hook shape and is locked by being hooked onto one side of the head 55.

According to this embodiment, since the lever swing support member 5 has a flat plate shape, as long as the end portion 43 of the coil spring 4 is formed into a hook shape, the lever swing support member 5 can be used as the conventional lever swing support member 5. One end of the coil spring 4 can be locked without any processing.

FIG. 11 shows yet another embodiment of the present invention.

That is, a wide part 53 is formed on the head of the lever swing support member 5, which is asymmetrical with respect to the swing axis of the lever 3, and around which the coil spring 4 can be wound.
6 was formed.

Then, depending on the mounting state of the coil spring 4, the lever swing support member 5 is provided protruding from the base plate 2 at a position such that the axis of the coil spring 4 and the swing axis of the lever 3 substantially coincide with each other.

According to this embodiment, since the coil spring 4 and the pivot axis of the lever 3 substantially coincide with each other, the biasing force does not become unstable or wobble.

Moreover, since the lever swing support member 5 is flat, even such an asymmetrical shape can be easily formed into a bottom shape by press working.

FIG. 12 shows yet another embodiment of the present invention.

That is, the wide portion 53 of the lever swing support member 5 and the substrate 2
A second lever 3b and a second lever 3b are sandwiched between them, and the support portion 52 is also arranged in two stages accordingly.

The engagement holes 32a and 32b formed in each lever have different pivot axes.

According to this embodiment, even levers with different pivot axes can be simultaneously supported by one lever swing support member 5, which is convenient in terms of design, and the shape is a press bottom type and can be easily shaped into a bottom shape. can do.

Needless to say, it is possible to support even more levers.

Since the lever swing support structure according to the present invention has a flat plate shape, it can be formed at low cost and extremely easily by press processing, and complex shapes can be formed, which is significantly effective in reducing productivity and cost. be.

Furthermore, it is possible to easily support levers with different pivot axes.

Note that the lever swing support member may be provided protrudingly on the lever side, and the engagement hole may be provided on the substrate side, and the protrusively provided does not need to be caulked.

Further, although the wide portion for holding the lever is integrally formed, it is also possible to use a pin or a washer to hold the lever.

[Brief Description of the Drawings] Figures 1 to 3 are longitudinal sectional views of various conventional examples, Figure 4 is a plan view of another conventional example, and Figure 5 is a front view of an automobile door lock to which the present invention is applied. 6 to 9 show an embodiment of the present invention, FIG. 6 is an exploded perspective view, FIG. 7a is a vertical sectional view, and FIG. 7 is rotated 90 degrees with respect to FIG. 8 is a plan view, FIG. 9 is an explanatory diagram of operation, FIG. 10 is a plan view of another embodiment, FIG. 11 is a further embodiment, and FIG. 11 is a plan view, FIG. 12 shows another embodiment, FIG. 12a is a plan view, and FIG. 12 is a longitudinal sectional view. 2... Board, 3... Lever, 32...
Engagement hole, 5... Lever swing support member, 51.
Curved/fitting part, 2...Support part, 53...Wide part.

Claims (1)

[Scope of utility model registration request] A support part with a rectangular cross section in the form of a flat plate, with a fitting hole in one of the board or a lever pivotally attached to the board, and a drum-shaped engagement hole in the other part, and a support part with a rectangular cross section, which is continuous with the lower part of the support part. The fitting part and the wide part of the head of the support part are formed as a whole with a waist, and the fitting part of the lever swinging support member in the form of a flat plate is fitted into the fitting hole and protrudes from one side, A lever swing support structure in which a support part of the lever swing support member is swingably fitted into the engagement hole, and the other is sandwiched between the wide part and the one.