JP3235794B2 - Hinge structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hinge structure for pivotally connecting a pivot body to a support with a pivot pin.

[0002]

2. Description of the Related Art For example, a door inside handle of a vehicle is pivotally connected to a door panel.
Various types of this pivot structure are known, but for the purpose of improving the assembling workability, conventionally, the pivot structure shown in FIGS. 7 and 8 has been adopted. The handle (pivot) 11 has a pair of shaft holes 1
A pair of support holes 14 corresponding to the pair of shaft holes 12 are formed in a handle case 13 that supports the handle 11. Shaft pin 15 made of resin
Has a groove 15a and a tapered portion 15b at its front end and a flange 15c at its rear end.

In assembling, the shaft pin 15 is inserted in the order of one support hole 14a of the handle case 13, a pair of shaft holes 12 of the handle 11, and the other support hole 14b of the handle case 13 to increase the diameter at the tip. The tapered portion 15b is put out of the other support hole 3. Then, the enlarged diameter taper portion 1
The engagement of the support hole 5b and the support hole 14b prevents the shaft pin 15 from coming off. When passing through the support hole 14 and the shaft hole 12, the diameter-increased taper portion 15b is reduced in diameter by the sliding groove 15a, and after passing through, is restored by its elasticity and expanded.

In this hinge structure, the assembly is completed only by inserting the shaft pin 15. However, since the groove 15a is formed at the tip of the shaft pin 15, it is difficult to secure sufficient strength, and when a force P in a direction perpendicular to the shaft pin 15 is applied to the handle 11, As schematically shown in FIG. 8, there is a possibility that the groove 15a is crushed and the shaft pin 15 comes off or the shaft pin 15 is damaged. In addition, since the diameter-increased tapered portion 15b at the tip of the shaft pin 15 repeats diameter reduction and diameter expansion each time it passes through the support hole 14 and the shaft hole 12, a pushing load must be applied each time, and the At the time, the slot 1
There was a possibility that the elasticity due to 5a was impaired.

[0005]

SUMMARY OF THE INVENTION The present invention has been made based on the above awareness of the problem with the conventional hinge structure, without impairing the strength of the shaft pin, and when passing through the shaft hole of the pivot body and the support hole of the support. It is an object of the present invention to obtain a hinge structure which does not need to apply a pushing load to a hinge.

[0006]

SUMMARY OF THE INVENTION The present invention has a shaft hole and swings about the shaft hole.
Pivoting body moving; supporting hole corresponding to the axial hole of the pivoting body
A support having: a shaft hole of the pivot body and a support
Hinge structure having a shaft pin inserted into both of the support holes
About. In the hinge structure of the present invention, the shaft pin
A constant diameter shaft portion having a diameter corresponding to the shaft hole and the support hole;
A large diameter portion located at a rear portion in the insertion direction of the portion and having a larger diameter than the fixed diameter shaft portion; and a shaft pin including the fixed diameter shaft portion and the large diameter portion.
While the solid body the whole, the support side, Jikupi of this solid
Is deformed by being pressed by the insertion operation of the large diameter portion of the
In that a retaining part stops exits the shaft pin engages the insertion direction rear end surface of the large diameter portion and restored after passing the diameter
Features.

According to the hinge structure of the present invention, the shaft pin
The side is a solid body that is not deformed.
As it was configured to deform the retaining part side of the support,
There is no loss in the strength of the shaft pin. Also, from the large diameter part
Also, the front of the insertion direction is a constant diameter shaft part,
When the shaft passes through the shaft hole of the pivot body and the support hole of the support
There is no need to apply a pushing load.

The large diameter portion of the shaft pin may be a constant diameter portion depending on the shape of the retaining portion. However, if the large diameter portion is a tapered large diameter portion whose diameter increases toward the rear side in the insertion direction of the shaft pin, the shape of the retaining portion can be made simple. Contact with the large diameter part of the shaft pin in the retaining part
The portion may be constituted by a hole of a full circle which can be elastically deformed (expanded in diameter), but if it is constituted by a substantially semicircular recess, insertion of the shaft pin becomes easier. Also, insert the shaft pin more than the large diameter part.
At the rear of the entry direction, concentric with the fixed diameter shaft part and smaller than the large diameter part
It is preferable to have a second constant diameter shaft portion having a diameter. INDUSTRIAL APPLICABILITY The present invention can be applied to a hinge structure of any pivot body, and can be applied to, for example, a hinge structure of an inside handle of a vehicle door.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
1 and 2 show a first embodiment of the present invention.
The same elements as those in the conventional structure in FIGS. 7 and 8 are denoted by the same reference numerals. Shaft pin 20 according to the present invention includes a constant diameter shaft portion 20a corresponding to the diameter of the shaft hole 12 and the support hole 14, and the tapered 20b of the tip of the constant diameter portion 20a, and a rear portion of the tapered large diameter portion 20c Have. The tapered large-diameter portion 20c has a diameter that is increased toward the rear portion of the shaft pin 20. After the tapered large-diameter portion 20c, the constant-diameter shaft portion (the second diameter) that is concentric with and has the same diameter as the constant-diameter shaft portion 20a . 20d ) is provided.
The shaft pin 20 has a fixed diameter shaft portion 20a, a tapered portion 20b, and a taper.
The whole body including the large diameter part 20c and the constant diameter shaft part 20d is solid
Consists of

The handle case 13 has a retaining tongue piece (retaining portion) 22 separately from a pair of supporting tongue pieces 21 each having a support hole 14, and on the retaining tongue piece 22 . Is provided with a semicircular concave portion 22a . This semicircular concave
The portion 22a has the same axis as the support hole 14, has a smaller diameter than the tapered large-diameter portion 20c, and is formed to have substantially the same diameter as the constant-diameter shaft portion 20d.

The present hinge structure having the above-described structure includes a handle 11
The position of the shaft hole 12 of the handle case 13 and the position of the support hole 14 of the handle case 13 are matched with each other, and the shaft pin 20 is inserted from the side of the retaining tongue piece 22 of the handle case 13 with the tapered portion 20b facing forward. Then, since the constant diameter shaft portion 20a has a diameter corresponding to the diameter of the shaft hole 12 and the diameter of the support hole 14, it can be inserted without any special resistance. When the shaft pin 20 is further inserted, the tapered large-diameter portion 20c comes into contact with the semicircular concave portion 22a . Since the semicircular concave portion 22a is concentric with the tapered large diameter portion 20c and smaller in diameter than the large diameter portion 20c, resistance is added to the insertion of the shaft pin 20 thereafter. When a pushing load against this resistance is applied to the shaft pin 20, the retaining tongue 2
2. The handle case 13 is deformed. In addition, the indentation load
In addition, the tapered large diameter portion 20c prevents the tongue piece 22 (half
Overcoming the circular recess 22a) , the retaining tongue piece 22 is deformed
After being restored from the state, the locking surface 20e at the rear end of the tapered large-diameter portion 20c in the insertion direction is engaged with the end surface of the retaining tongue piece 22 . That is, the shaft pin 20 is prevented from coming off.

The overlap amount a between the tapered large diameter portion 20c and the semicircular concave portion 22a when the shaft pin 20 is inserted.
In consideration of the elasticity of the retaining tongue piece 22 and the like, the above-mentioned shaft pin 20 can be inserted, and after the insertion, the locking surface 20e is pulled out.
The fixing tongue piece 22 is determined so as to securely contact the end face.
In this inserted state, the constant diameter shaft portion 20d is in the semicircular concave portion 22a.
Located on top . That is, during the insertion operation of the shaft pin 20
By pressing the constant diameter shaft portion 20d, the tapered large diameter portion
20c rides on the tongue piece 22 (semicircular recess 22a)
Until it exceeds, the shaft pin 20 can be easily pushed
You.

As described above, according to the present invention, the shaft pin 20
The indentation load needs to be applied only once. Further, since it is not necessary to form a groove or the like on the shaft pin 20 and the shaft pin 20 can be formed as a solid body, the strength is excellent.

FIG. 3 shows that the shaft pin 20 has a tapered large diameter portion 20.
c, a large-diameter portion 20f having a constant diameter is provided, and the retaining tongue piece 22 is provided with the large-diameter portion 20f when the shaft pin 20 is inserted.
An embodiment is shown in which a tapered recess 22b corresponding to the tapered large-diameter portion 20c is formed at the contact point with the tapered recess 22b. In this embodiment, the same operation and effect as those of the first embodiment can be obtained.

FIGS. 4 to 6 show a more specific embodiment in which the present invention is applied to an inside handle 11 'of a vehicle door. The inside handle 11 ′ is pivotally attached to a handle case 25 by a shaft pin 20. In the example of FIG. 5, the edge 25a of the handle case 25 prevents the handle case 25 from coming off.
A tongue piece 22 is formed . In the example of FIG. 6, to form a tongue 22 retaining the wafer command <br/> Rukesu 25. This
5 and 6, both of the retaining tongue pieces 2
2 has a semicircular recess 22a similar to that shown in FIGS.
Has been established. Further, in the embodiment of FIGS. 5 and 6, the shape of the inside handle 11 'is different, but the basic structure is the same as that of FIGS. Reference numeral 26 denotes a torsion coil spring for urging the inside handle 11 'to the unlock position.

[0016]

As described above, according to the present invention , a large diameter portion is provided at the rear end of the fixed diameter shaft portion in the insertion direction , instead of providing the conventional sliding groove and the enlarged taper portion at the tip of the shaft pin. With
The entire shaft pin and a solid body, the support side of the pivot member, in this
Deformed when pressed by the insertion of the large diameter part of the actual shaft pin
In addition, a retaining portion for restoring after passing through the large-diameter portion and engaging with the rear end face of the large-diameter portion in the insertion direction to prevent the shaft pin from coming off is provided . Therefore, a hinge structure that does not impair the strength of the shaft pin and does not need to apply a pushing load when the shaft pin passes through the shaft hole of the pivot body and the support hole of the support body, further improving assembly workability. Can be obtained.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a hinge structure of the present invention.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a longitudinal sectional view showing another embodiment of the hinge structure of the present invention.

FIG. 4 is an inside perspective view of a vehicle door having a door inside handle to which the hinge structure of the present invention is applied.

FIG. 5 is a longitudinal sectional view showing still another embodiment of the hinge structure of the present invention.

FIG. 6 is a longitudinal sectional view showing still another embodiment of the hinge structure of the present invention.

FIG. 7 is a longitudinal sectional view showing an example of a conventional hinge structure.

FIG. 8 is a vertical sectional view showing a problem of the hinge structure of FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Handle (pivot) 11 'Inside handle (pivot) 12 Shaft hole 13 25 Handle case (support) 14 Support hole 20 Shaft pin 20a Constant diameter shaft portion 20b Tapered portion 20c Tapered large diameter portion 20d Constant diameter shaft Part (second constant diameter shaft part) 20e Engagement surface 20f Large diameter part 22 Retaining tongue piece (retaining part) 22a Semicircular concave part 22b Tapered concave part

Claims (5)

(57) [Claims] 1. A pivot body having a shaft hole and swinging about the shaft hole; a support body having a support hole corresponding to the shaft hole of the pivot body: and a shaft hole of the pivot body in the hinge structure with, the shaft pin, the constant diameter portion of diameter corresponding to the shaft hole and the support hole and; a shaft pin which is inserted into both the support hole of the support of the constant diameter portion The fixed diameter shaft located at the rear of the insertion direction
A large diameter portion having a large diameter, and the entire shaft pin including the fixed diameter shaft portion and the large diameter portion is solid.
Made from the body, to the support, the operation of inserting the large diameter portion of the shaft pin of this solid
Therefore, it is pressed and deformed, and restored after passing through the large diameter portion.
A hinge structure comprising a retaining portion for engaging the rear end face of the large diameter portion in the insertion direction and retaining the shaft pin. 2. The hinge structure according to claim 1 , wherein
The large diameter portion is a hinge structure that is a tapered large diameter portion that increases in diameter toward the rear side in the insertion direction of the shaft pin. 3. The hinge structure according to claim 1 , wherein
When the shaft pin is inserted , the retaining part is
A hinge structure having a substantially semicircular concave portion that abuts . (4) The method according to any one of claims 1 to 3.
In the hinge structure of the above, the shaft pin is larger than the large diameter portion.
Also, at the rear part in the insertion direction, concentric with the constant diameter shaft part and large diameter part
A hinge structure having a second constant diameter shaft portion having a smaller diameter than that of the hinge structure.
Build. 5. A according to any one of claims 1 to 4
The hinge structure wherein the pivot body is an inside handle of the vehicle door and the support is a handle case fixed to the vehicle door panel.