JPH0211565Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention consists of forming a horizontal bending part and a free end bending part in succession at one end of the base of the rod to form a crank shape. This invention relates to a connection structure in which a rod and a lever are connected by inserting the horizontally bent portion of the rod into an engagement hole formed in the lever.

(Prior Art) Such a connection structure between a rod and a lever is, for example, a connection means for connecting a locking/unlocking knob protruding from a window frame of a rear door of an automobile and a locking/unlocking lever of a door lock provided at the rear of the door. The connection between the bell crank-shaped lever pivoted to the door panel in the middle, the knob rod and the connecting rod,
It is often used in various connecting parts that need to connect other rods and levers.

As such a conventional connection structure, there is, for example, Japanese Utility Model Application Publication No. 58-104263.

However, in such a conventional connection structure, when the rod is connected to the lever by inserting the horizontally bent part of the rod into the engagement hole of the lever and the lever is transported, the rod is inserted into the engagement hole of the lever. The rod may fall off from the lever due to the chamfer formed in the engagement hole to facilitate insertion into the lever, or the rod may become connected to the lever because there is no restriction on rotation of the rod relative to the lever. When attaching the lever to the panel in the closed state, the rod falls down and becomes an obstacle, resulting in poor workability in attaching the lever.

(Purpose of the invention) The present invention has been developed by focusing on the problems of the conventional levers, and has developed a rod and lever that prevents the rod from falling off during transportation of the lever and that is easy to install. The purpose is to provide a connection structure with.

(Structure of the Invention) In order to achieve the above object, in the present invention, an arc-shaped wall portion that prevents the rod from falling out of the engagement hole of the lever is provided on at least one side of the lever in the engagement hole. A protrusion that stands near the hole and prevents the rod from falling beyond a certain rotational range with respect to the lever is provided near the engagement hole on at least one side of the lever. It is characterized by:

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

1 to 14 show an embodiment of the present invention, in which the present invention is attached to a connecting means for connecting a locking/unlocking knob on a rear door of an automobile and a locking/unlocking lever of a door lock. This is the case when applying.

As shown in FIGS. 1 to 5, mounting holes 2 are bored at appropriate locations in a door panel (hereinafter simply referred to as the panel) 1 of an automobile.

A rotating lever support device A that rotatably supports the lever in a mounting hole 2 of a panel 1 includes a bearing B that has a cylindrical portion 4 that fits into the mounting hole 2 and a seat plate 3 that is integrated with the cylindrical portion 4. and a bell crank-shaped lever 8 having a cylindrical protruding shaft 9 that fits into the cylindrical portion 4.

The bearing B is made of a hard synthetic resin material having appropriate elasticity, such as acetal resin, and the cylindrical portion 4 has an outer diameter that is approximately equal to or slightly smaller than the inner diameter of the mounting hole 2.

As shown in FIGS. 5 to 9, the cylindrical portion 4 has three first elastic claw pieces 5 arranged at equal intervals in the circumferential direction.
is formed. Each first elastic claw piece 5 has a cylindrical portion 4
are integrated at the distal end of the cylindrical portion 4, extend toward the base of the cylindrical portion 4, and gradually protrude outward from the outer peripheral surface of the cylindrical portion 4 from the distal end of the cylindrical portion 4 toward the base. It has an inclined surface 5a and a step-shaped locking portion 5b formed at the tip of the sloped surface 5a and locked to the edge of the mounting hole 2 to prevent it from coming off.

The distance between the locking portion 5b and the seat plate 3 is approximately equal to the thickness of the panel 1. In addition, each first elastic claw piece 5
The inner diameter of the inner surface of the tube portion 4 is approximately the same as the inner diameter of the inner surface of the cylindrical portion 4.

The cylindrical portion 4 is further provided with three second elastic claw pieces 6, each of which is located between each of the first elastic claw pieces 5.

Each second elastic claw piece 6 is integrated at the base of the cylindrical portion 4 and extends toward the tip of the cylindrical portion 4, and extends from the base of the cylindrical portion 4 toward the tip. An inclined surface 6 that is inclined so as to gradually protrude inward from the surface.
a, a stepped claw portion 6b formed at the tip thereof,
It is provided with an inclined part 6c.

The tip of the cylindrical portion 4 is closed by an end wall 4a, and a small hole 7 is bored in the center of the end wall 4a.

As shown in FIGS. 1 to 5 and 10 to 12, the lever 8 is made of the same material as the bearing B, and one side of the corner thereof has an inner diameter approximately equal to the inner diameter of the cylindrical portion 4. Hollow protruding shafts 9 having the same outer diameter are integrally formed.

The protruding shaft 9 has a locked edge 10a that is elastically locked by the claw portion 6b of the second elastic claw piece 6 to prevent it from coming off.
The three openings 10 have left and right side edges 10b and 10c having a width W2 in the circumferential direction larger than a width W1 in the circumferential direction of the second elastic claw piece 6. Holes are drilled at equal intervals.

The locked edge 10a of the opening 10 is closed by the end wall 9a of the protruding shaft 9, and the end wall 9a
A reduced diameter shaft portion 11 having an outer diameter approximately equal to the inner diameter of the small hole 7 in the cylindrical portion 4 of the seat plate 3 is connected to the center of the seat plate 3 .

Between each opening 10 on the protruding shaft 9, three spline grooves 12 having a fan-shaped cross section are provided on the protruding shaft 9.
It is formed over the entire length of.

Each inclined portion 6c of the second elastic claw piece 6 can engage with one side edge 10b of each opening 10,
With the lever 8 attached to the bearing B,
When the lever 8 is strongly rotated in the direction in which the one side edge portion 10b engages with the inclined portion 6c, the inclined portion 6
c rides on one side edge 10b, each claw part 6b of the second elastic claw piece 6 touches each opening 10.
Each inclined portion 6c is formed such that each second elastic claw piece 6 moves into each spline groove 12 by separating from the locked edge 10a.

Further, around the protruding shaft 9, four radial elastic claw pieces 13 whose tips face the same direction as the protruding shaft 9 and are inclined are arranged in succession at equal intervals in the circumferential direction.
Furthermore, a circular projecting frame 14 into which the seat plate 3 can be fitted is connected to its outer periphery.

Further, the lever 8 is connected to a first arm 8 to which the other end of a first rod 20 is connected, one end of which is connected to a lock/unlock knob (not shown) that can be retracted from the window frame of the door.
1, and a second arm 82, one end of which is connected to a locking/unlocking lever (not shown) of the door lock, and a second arm 82, the other end of which is connected to a second rod 30.

The other end of the base portion 20a of the first rod 20 is bent so that a horizontally bent portion 20b and a free end bent portion 20c continuously form a crank shape. Engagement hole 81a of first arm 81
By fitting into the first rod 20 and the first arm 81, the first rod 20 and the first arm 81 are connected so as to be relatively rotatable.

Similarly, the other end of the base portion 30a of the second rod 30 is bent so that a horizontally bent portion 30b and a free end bent portion 30c continuously form a crank shape. 30b into the engagement hole 82a of the second arm 82, the second rod 3
0 and the second arm 82 are connected to be relatively rotatable.

As shown in FIGS. 1, 4, 5, and 10 to 14, the base 20a and free end bent portion 20c of the first rod 20 are located at appropriate positions on each side of the first arm 81. First elastic protrusions 8 that are in pressure contact with each other
3a and 83b are formed.

Similarly, a second
Elastic protrusions 84a and 84b are formed.

Fan-shaped lightening holes 83c, 83d, 84c and 84d are formed in the lower portions of each of the first elastic protrusions 83a and 83b and each of the second elastic protrusions 84a and 8b.

On both sides of the first arm 81, arc-shaped first walls 85a and 85b are formed near the engagement hole 81a to prevent the first rod 20 from falling off from the engagement hole 81a. First protrusions 86a and 86b are formed to prevent the first rod 20 from rotating (falling down) relative to the lever 8 beyond a certain rotation range.

The first protrusions 86a, 86b are capable of engaging with the base 20a and the free end bent portion 20c, respectively, and are located at positions slightly outside of both ends of the relative rotation range between the first rod 20 and the lever 8. 1 protrusion 86
a and 86b are provided, respectively.

Similarly, arc-shaped second walls 87 are provided on both sides of the second arm 82 to prevent the second rod 30 from falling off.
a, 87b, and a second protrusion 88 that prevents the second rod 30 from rotating (falling down) relative to the lever 8 beyond a certain rotation range.
a, 88b are formed.

The action will be explained below.

By fitting the cylindrical portion 4 of the seat plate 3 into the mounting hole 2 of the panel 1 and locking the locking portion 5b of the first elastic claw piece 5 to the edge of the mounting hole 2, the cylindrical portion 4 is prevented from coming off from the mounting hole 2, and the protruding shaft 9 of the lever 8 is fitted into the cylindrical portion 4, and the second elastic claw piece 6
By locking the claw portion 6b to the locked edge 10a of the opening 10 of the protruding shaft 9, the protruding shaft 9 locks into the cylindrical portion 4.
It's more secure to stay in place.

By doing this, the lever 8 can be moved to the panel 1.
It is substantially prevented from coming off from the mounting hole 2 of the bearing B, and is integrated with the protruding shaft 9, so that the second
The elastic claw piece 6 is supported within the opening 10 so as to be rotatable within a relatively movable range.

When removing the lever 8 from the bearing B, when the lever 8 is strongly rotated counterclockwise in FIG. and each inclined portion 6c
The second
Each claw portion 6b of the elastic claw piece 6 separates from the locked edge 10a of each opening 10, and each second elastic claw piece 6
is removed from each opening 10, and each spline groove 12
Go inside. Thereby, the lever 8, which has been released from the locking by the cylindrical portion 4 of the bearing B, can be removed from the bearing B.

As shown in FIG. 1, in order to connect the second rod 30 to the engagement hole 82a of the second arm 82, a tenth
In the figure, the free end bent portion 3 is placed in a state where the horizontal bent portion 30b is parallel to the line
0c into the engagement hole 82a from above and push down the second rod 30 toward the protruding shaft 9 to fit the horizontally bent portion 30b into the engagement hole 82a. approximately clockwise
Just rotate it 90 degrees.

The second rod 30 is inserted into the engagement hole 82 of the second arm 82.
To remove it from a, the above connection procedure can be reversed.

The procedure for connecting and removing the first rod 20 is the same as that for the second rod 30 described above.

In the state where the second rod 30 is connected to the second arm 82, even if the second rod 30 is displaced from the position shown in FIG. 13 due to its own weight, etc., it will not bend laterally as shown in FIG. Since both ends of the portion 30b engage with the second wall portions 87a and 87b, the second rod 30 will not naturally fall off from the second arm 82.

The same applies to the first rod 20.

Further, the first rod 20 has a position where the base portion 20a engages with one of the projections 86b, and a position where the free end bent portion 2
It can only be rotated relative to the lever 8 between the position where the protrusion 0c engages with the other protrusion 86a.

This also applies to the second rod 30.

(Effect of the invention) According to the connection structure between the rod and the lever according to the invention, since the wall portion is provided near the engagement hole of the lever,
The rod does not fall off the lever while the lever is being transported, making it easier to transport the lever. In addition, a protrusion is provided near the engagement hole of the lever to restrict rotation of the rod relative to the lever, making it easy to attach the lever to the panel. When installing, the rod does not fall over and the lever installation work is easy.

[Brief explanation of the drawing]

1 to 14 show an embodiment of the present invention, in which FIG. 1 is a plan view showing the installed state, FIG. 2 is a cross-sectional view taken along the line -- in FIG. 1, and FIG. of-
Line sectional view, Figure 4 is a rear view showing the state removed from the panel, Figure 5 is an exploded perspective view, Figure 6 is a plan view of main parts, Figure 7 is a side view of Figure 6, Figure 8 is a rear view of Fig. 6, Fig. 9 is a sectional view taken along the line - - in Fig. 6, Fig. 10 is a plan view of main parts, Fig. 11 is a sectional view taken along the line XI-XI of Fig. The cross-sectional view taken along the line XII-XII in FIG. 10, FIGS. 13 and 14 are action explanatory diagrams. 8...Lever, 20...1st rod (rod),
30...Second rod (rod), 20a, 30a
... Base, 20b, 30b ... Horizontal bent part, 20
c, 30c... Free end bent portion, 81a, 82a...
Engagement hole, 85a, 85b...first wall part (wall part),
87a, 87b...second wall (wall), 86a,
86b...first protrusion (protrusion), 88a, 88
b...Second protrusion (protrusion).

Claims (1)

[Scope of utility model registration request] One end of the base of the rod is bent into a crank shape by connecting a horizontally bent part and a free end bent part, and the horizontally bent part of the rod is inserted into an engagement hole drilled in the lever. By this, in a connection structure formed by connecting a rod and a lever, an arcuate wall portion that prevents the rod from falling out of the engagement hole is connected to the engagement hole on at least one side of the lever. A protrusion is provided on at least one side of the lever to prevent the rod from falling beyond a certain rotation range with respect to the lever.
A connection structure between a rod and a lever, characterized in that the rod is provided near the engagement hole.