JPS63195001A - Adjustment bush builtup body for wheel installing and wheel installation using the body - Google Patents

Abstract

PURPOSE:To obtain a excellently interchangeable bush by inlaying rotation preventing rings in plural prepared holes with a key groove on the wheel installation surface, engaging bushes, in which a receiving opening of a hub bolt is formed in an eccentric position, with each ring, and making a constitution in which both rings and bushes are locked by elastic nails. CONSTITUTION:The adjustment bush builtup body has a rotation preventing ring A insertedly locked not-rotatively in prepared holes S, in which a key groove 17 is formed, on the wheel installing surface M and formed in a state of a C-type retaining ring for hole as a whole. Also a receiving hole 20 of a hub bolt 14 is opened at an eccentric position, and a conical jaw part 18a adapting to a conical receiving part surface of prepared holes S is provided. And a receiving recessed peripheral groove 19 of the rotation preventing ring A and a nail retractable hole 23 are provided to a cylindrical body part of the bush B, and an elastic nail 22 is inserted into the hole 23. Also a lock jaw part 25b insertedly locked to the recessed peripheral groove 19 and plural nail receiving windows 26 selectively receiving the elastic nail 22 are provided to a cylindrical body part 25a of the ring A.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an adjustment bushing assembly for interchangeably mounting a wheel on the axle side of a motor vehicle, and a wheel mounting method using the bushing assembly.

<Prior art and its problems> In general, automobile wheels are fastened and fixed via nuts to a plurality of hub bolts protruding from the hub of the axle through pilot holes opened in the mounting surface of the disc. When installing the wheel to the hub bolt, use the pilot holes P, C, and D (PitchCircle Mam
sLer) differs from car manufacturer to car manufacturer and car model to car model, so manufacturers of replacement wheels have to open pilot holes for the installation of P, C, and O to correspond to these changes. It is necessary to manufacture and prepare various types of wheels in advance, and it is necessary to keep a large number of wheels in stock.

Therefore, the present applicant previously proposed Utility Model Application No. 61-21762 as an adjustment bushing to provide compatibility with the wheel mounting regardless of the changes in P, C, and D mentioned above, and used it. . However, it has been found that even with this prior application, there is still the following problem to be solved.

In other words, in the prior invention mentioned above, due to its structure, the bushing fitted into the pilot hole of the wheel rotates freely and naturally in the fitted state, so the eccentric position of the bushing The opened hub bolt receiving port is
The openings of the plurality of bushes may not all be positioned correctly on concentric circles, and the hub bolt and its receiving opening may not match. As a result, when attaching the wheel to the axle side, it is necessary to manually rotate some of the bushings so that the hub bolts and their sockets all align correctly, which is extremely troublesome for the wheel installation process. be.

In addition, where the alignment between the wheel and the axle is achieved only by a plurality of bushings, the bushings are in a rotatable relationship with respect to the prepared hole, and the hub bolt receiving port and the hub bolt are also aligned. If the nut fastened to the hub bolt loosens even slightly, or if the tightening torque is uneven, the centering accuracy will immediately deteriorate, resulting in rotation from the axle side. It also poses an obstacle in transmitting torque to the wheels without loss.

Means for Solving the Problems> The present invention aims to improve these problems, and for this purpose, the wheel mounting is provided with an adjustment bushing assembly for
The anti-rotation ring is bent into the shape of a hole horse C-shaped retaining ring as a whole and is placed in an eccentric position so that it can be inserted and locked into the keyway cut out in the pilot hole of the wheel mounting surface in a non-rotatable manner. It consists of a bushing through which a hub bolt receiving hole is opened, and a conical flange that fits the conical receiving surface of the prepared hole extends, and a concave periphery for receiving a rotation prevention ring in the cylindrical part of the bushing. A groove and a claw retraction hole opening along the radial direction are provided, and an elastic claw formed from a spring material is placed in the retraction hole in an elastically biased state in which the tip of the claw is always exposed from the retraction hole. On the other hand, on the cylindrical part of the anti-rotation ring, select the inwardly protruding locking flange that should be inserted and locked into the concave circumferential groove of the bushing, and the claw tip of the elastic claw. a plurality of claw-receiving windows for receiving the bushing, and a rotation prevention ring is attached to the cylindrical portion of the bushing so that the locking collar portion is locked in the concave circumferential groove;
The first feature is that the bushing is integrated with the ring so that it can be rotated while resisting the elastic force of the elastic pawl. To the keyway cut out in the pilot hole of
In order to be inserted and locked in a non-rotatable manner, the anti-rotation ring is wound in the form of a C-shaped retaining ring for the hole as a whole, and a hub bolt receiving hole is opened through the hole at an eccentric position, and a conical receiver in the pilot hole is provided. It consists of a bushing with a protruding conical flange that fits the seat surface, and the cylindrical part of the bushing is provided with a concave circumferential groove for receiving the anti-rotation ring and a claw hole opening along the radial direction. A ball and a coil spring are inserted into the retractable hole in an elastically biased state in which the ball is always exposed from the retractable hole by the coil spring. A locking flange protruding inward to be inserted and locked into the circumferential groove, and a plurality of ball receiving windows selectively receiving the balls are provided, and the locking flange is engaged with the concave circumferential groove. A rotation prevention ring is attached to the cylindrical portion of the bushing so as to prevent the bushing from rotating, and the bushing is assembled so that the bushing can be rotated with respect to the ring while resisting the elastic urging force of the ball. The second feature is that it is integrated.

Furthermore, as a method for mounting a wheel using the above-mentioned bushing assembly, the cylindrical part of the bushing, which has a hub bolt receiving hole opened at an eccentric position, self-retains the elastic pawl so that it cannot fall off, and the hole C as a whole. A claw receiving window is provided in which the claw tips of the elastic claws are selectively and constantly locked in a cylindrical portion of the anti-rotation ring that is bent into the form of a retaining ring. Adjustment in which a plurality of rings are opened so that the bushing can be rotated with respect to the rotation prevention ring while resisting the above-mentioned pressing force, and the ring is attached to the bushing in an integrated manner. Set the bushing assembly in advance by fitting it into the pilot hole of the wheel so that its ring does not rotate, and then align the shaft hole of the wheel to the center protrusion integrally protruding from the hub. The hub bolt receiving hole is adjusted to match the hub bolt planted from the hub by tightly fitting the bushing through the collar and rotating the bushing with respect to the rotation prevention ring. It is something.

<Example> Hereinafter, the present invention will be explained in detail based on the illustrated example. Figures 1 to 3 show the state in which the wheel is attached to the axle of an automobile, and the main part in the state in which the wheel is removed is also shown. (M) is the mounting surface of the middle disk portion of the wheel, and a shaft hole (12) for receiving the center protrusion (11) of the hub (10) is opened at the center position. In that case, in the illustrated example, a separate centering collar (13
), it is possible to ensure a highly accurate centering and close contact state when they are fitted, but the installation of the centering collar (13) may be omitted.

(14) is a plurality of hub bolts (a total of 4 in the example shown) that are integrally planted outward from the hub (10), and P, C, and D are designated for each car manufacturer and model. Although it may change from time to time, there is no change in the fact that the pieces are arranged in a radially symmetrical manner as a whole, and,
Needless to say, by tightening the cap nuts (15) to the hub bolts (14), the wheel is fixedly attached to the hub (10) of the axle, and its rotational torque is accepted.

(S) is the shaft hole (12
), the wheel mounting hole is a pilot hole opened in a position corresponding to the hub bolt (14), and also exhibits an overall radially symmetrical arrangement. At this time, each prepared hole (S) has a conical receiving surface (16a) which is a trumpet-shaped cone that expands outward on the inner wall surface of the opening, and a straight cylindrical light with a small diameter that continues at the inner position is a surface (16b). Tokara shape・
In addition, the cylindrical light has a keyway (17) cut out in the surface (16b) for receiving and locking a rotation prevention ring (A), which will be described later. In addition, the conical receiving surface (
16a) expands outward with a trumpet shape, making the bush (
Of course, it also performs an automatic centering and fitting action with B).

The adjustment bushing assembly of the present invention is formed from the bushing (B) and the anti-rotation ring (A>, and this is the fourth
It is provided with a configuration that is extracted and enlarged as shown in Figures 10 and 10, and after the initial assembly is completed, it is fitted and set into the prepared hole (S).

That is, first of all, regarding Bush (B), (18a)
is its protruding conical flange, which fits with the conical receiving surface (16a) of the pilot hole (S). (18b) is a straight cylindrical portion with a small diameter that continues inward from the protruding base end position of the conical flange portion (18a), and the diameter of the cylindrical light in the pilot hole (S) is It is formed smaller than the opening diameter of (18b) by a certain dimension. A concave circumferential groove (19) for receiving the anti-rotation ring (A) is formed near the inner end of the cylindrical portion (18b).

In addition, in such a bush (B), the hub bolt (14) is attached at a position offset by a certain amount (l) from the circular center position (which may also be referred to as the opening center position of the pilot hole).
A receiving hole (20) is opened therethrough. The opening inner wall surface of the receiving hole (20) is provided with the cap nut (15).
) is provided with a conical bearing surface (not shown) which is adapted to provide a self-centering effect, as suggested by FIG. 6.9.

In comparison to the fact that the hub bolt receiving hole (20) is formed at an eccentric position, a local thick wall portion remains in the bush (B). As is clear from Fig. 7.9.10, the elastic claw insertion groove (21), which has a substantially arcuate shape when viewed from the inside, is hollowed out from the inside, so that the overall weight The balance above is maintained. The elastic claw (22) is made of a spring material such as a piano wire or a steel plate, and the center tip (22) is made of a spring material such as piano wire or a steel plate.
It is bent into a substantially mountain-shaped protruding shape as shown in a), and can be inserted and set into the insertion groove (21) from the inside while being forcibly deformed.

(23) is a claw hole which is opened in the center of the insertion groove (21) and communicates along the radial direction of the cylindrical part (18b), and when inserted and set as described above. In this case, the chevron-shaped tip (22a) of the elastic claw (22) protrudes and retracts from the ejection hole (23), and is always exposed from the ejection hole (23) due to the elastic biasing force accumulated by tightening the elastic claw (22). It has become. Therefore, once inserted and set, the elastic claw (22
) may fall out of the insertion groove (21).

In the illustrated example, each bush (B) is made to self-hold one elastic claw (22), but it is also possible to insert and set a plurality of the elastic claws (22). (24) is Bushu (
This is a guide indicator for detecting the rotational angular position of B), and is provided on the surface of the conical flange (18a) so that it can be easily seen from the outside.

On the other hand, the rotation prevention ring (A) has its cylindrical portion (25a
) The locking flange (25b) extends inward from the inner end position of
It has a cut-off circuit shape and is bent from a metal plate like a so-called C-shaped retaining ring for a hole, and is constantly biased by an expanding elastic force. (26) is its circular body (25a)
A plurality of claw receiving windows are opened at regular intervals, and receive and lock the tips (22a) of the elastic claws (22) on the bush (B). Further, (27) is a positioning tongue piece bent outward from the cut-off end of the anti-rotation ring (A), and is inserted and locked into the keyway (17) of the prepared hole (S) in the wheel. It has become so.

The rotation prevention ring (A) has its locking flange (25b)
By being removably locked in the concave circumferential groove (19) of the bushing CB), it is assembled and integrated with the bushing (B) in advance, and in that state, the bushing CB)
The elastic claw (22) of the ring (A) is inserted into the claw receiving window (2) of the ring (A).
6) will be accepted and locked. In that case, the claw receiving windows (26) are opened in a plurality of scattered locations, and the elastic claws (22) move in and out of the claw holes (23), thereby preventing rotation. Ring (A)
The bushing (B) can be rotated freely, and when this operation is applied, the tip of the elastic claw (22) (
22a) selectively engages with the plurality of claw receiving windows (26), and is automatically held in the locked state without rattling due to its elastic force.

Next, FIG. 11 shows a modification of the elastic claw (22), in which the elastic claw (22) as a whole including its tip (22a) is bent from one piece of spring material. Contrary,
In this modification, there is a ball (28) corresponding to the tip (22a) and a coil spring (29) that applies back pressure to the ball (28).
It is finished in a structure that allows it to function as an elastic claw (22). In other words, the circular body part (18
A ball (28) is sealed in the claw retraction hole (23) which is formed along the radial direction in b) so as not to fall out, and the ball (28) is always exposed from the retraction hole (23) to prevent rotation. The ball (28) is attached to the ring (A) by a coil spring (29) sealed in the claw hole (23) so as to be removably engaged with the claw receiving window (26) of the ring (A).
It is pushing down.

Function> Using the adjustment bushing assembly configured as above,
When attaching the wheel to the axle hub (10),
The positioning tongue (27) of the anti-rotation ring (A), which has been assembled in advance on the bush (B), is inserted and locked into the keyway (17) of the pilot hole (S) in the wheel. . Then, the anti-rotation ring (A) should be inserted into the pilot hole (
Not only does it become unrotatable with respect to the pilot hole (S), but it is also subject to an ever-expanding pressing force like a large retaining ring, so the cylindrical receiving surface (b ) and will not come out accidentally from the pilot hole (S). Therefore, it is possible to finish the wheel with the adjustment bushing assembly of the present invention fitted and set in advance.

Therefore, for example, depending on the car model, the wheel has a large diameter circle (C1) as shown in Figure 12.
), and when the same wheel is installed interchangeably on a smaller diameter circle (C2) of another car model as shown in Fig. 13, the above-mentioned rotation prevention Rotate the bushing (B) relative to the ring (A), align the hub bolt receiving hole (20) associated with the eccentric hole with the hub bolt (14) protruding from the hub (10) of the axle, The cap nut (15) may be fastened and fixed to the received hub bolt (14). By doing so, the P, C, and D of the wheels, which vary depending on the vehicle type, will automatically be adjusted correctly for eight rounds.

In that case, from the point of view of finer adjustment accuracy, it is obvious that the opening interval pitch of the pawl receiving window (26) should be set narrowly, but even if it is not set narrowly, the cap nut (I5 ), when you tighten it, the bush (
B) rotates minutely with respect to the anti-rotation ring (A), so to speak, absorbing dimensional errors, so there is no problem in the mounting state of the wheel. On the contrary, because the bush (B) is kept unrotatable in advance by the anti-rotation ring (A) via its elastic pawl (22), the above! The interchangeable mounting work of the wheels, including the adjustment operations of ', C, and [l, can be performed extremely simply, easily, and efficiently.

When installing the wheel mentioned above, as shown in the illustration, make sure to connect the pilot hole (S) of the wheel and the center protrusion (11) of the hub (10).
), if a separate centering collar (13) is also inserted in a tightly fitted state, in addition to the centering effect of the adjustment bush assembly, it is possible to further improve the centering accuracy of the wheel installed state. Therefore, it can be said that it is extremely profitable.

<Effects of the Invention> As described above, the adjustment button assembly for wheel mounting according to the present invention can be rotated into the keyway (17) cut out in the pilot hole (S) of the wheel mounting surface (M). The anti-rotation ring (A) is bent in the form of a C-shaped retaining ring for the hole as a whole so that it can be pressed and locked in an immovable manner, and the receiving hole (20) for the hub bolt (14) is located at an eccentric position.
is through-opened, and the conical receiving surface (16) of the pilot hole (S)
a) and a bushing CB) from which a matching conical flange (18a) extends, and the cylindrical part (18b) of the bushing (B) has a concave circumferential groove for receiving the anti-rotation ring (A). (19) and a claw retraction hole (23) that opens along the radial direction, and an elastic claw (22) made of a spring material is inserted into the retraction hole (23).
The claw tip (22a) is inserted and installed in an elastically biased state where it is always exposed from the retraction hole (23), and on the other hand, the bush (B) is inserted into the cylindrical part (25a) of the anti-rotation ring (A).
a locking flange (25b) projecting inward to be inserted into and locked in the concave circumferential groove (19); and a claw receiving window for selectively receiving the claw tip (22a) of the elastic claw (22). (2
A rotation prevention ring (6) is provided on the cylindrical portion (18b) of the bushing (B) so that the locking collar portion (25b) is locked in the concave circumferential groove (19). The assembly is such that the bush (B) can be rotated with respect to the ring (A) while resisting the pressing force of the elastic claw (22) with A) in the attached state. Due to its structure, the problems of the conventional technology mentioned at the beginning can be completely eliminated.
This has the effect of making it possible to mount the wheel universally or interchangeably and with extremely high efficiency while constantly adjusting P, C, and D accurately. ) and a coil spring (29).

Furthermore, due to the structure of the wheel mounting method, the elastic pawl (22) is self-retained in a cylindrical portion (18b) of the bushing (B) through which the hub bolt receiving hole (20) is opened at an eccentric position. On the other hand, the claw tip portion (22a) of the elastic claw (22) is attached to the cylindrical portion (25a) of the anti-rotation ring (A) which is bent into the form of a C-shaped retaining ring for a hole as a whole.
A plurality of claw receiving windows (26) are opened to selectively and constantly lock each other under an elastic bias state, and the bushing (B) is attached to the anti-rotation ring (A). The adjusting bushing assembly, which is integrally assembled with the ring (A) attached to the bushing (B), is attached to the bushing (B) so that it can be rotated while resisting the above-mentioned pressing force.
) into the pilot hole (S) of the wheel in advance so that it does not rotate, and then insert the shaft hole (12) of the wheel into the hub (1
0) to the center protrusion (11) protruding from the residence,
The hub bolt receiving hole (
20) from the hub (10).
), so it is adjusted to match the
While the above-mentioned P, C, and D can be easily adjusted, it is possible to obtain a highly accurate centering effect with respect to the hub (10) depending on the mounting condition of the wheel, which can be said to be of great practical benefit.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing the removal and disassembly state of the wheel in the present invention, and Fig. 2 is a side sectional view showing the process of installing the wheel.
Figure 3 is a partially enlarged side sectional view showing the completed installation, Figure 4 is an exploded perspective view showing the adjustment bushing assembly, Figure 5 is an exploded side view, and Figures 6 to 8 are A front view, a rear view, and a side view showing the assembled state of the bushing and the locking prevention ring, FIG. 9 is a sectional view taken along the line IX-IX in FIG. 7, and FIG. 10 is a sectional view taken along the line XX in FIG. 8. , Figure 11 is the 9th
12. Side sectional view showing a modified example of the elastic claw corresponding to the figure.
FIG. 13 is a front view of the wheel mounting surface for comparing and explaining the adjustment effects of P, C, and D. (A>... Rotation prevention ring (B)... Bush (l)... Constant eccentricity (S)... Pilot hole (M)... Wheel mounting surface (10)...Hub (11)...Center protrusion (12)...Shaft hole (13)...Centering collar (14)...・Hub bolt (15) ... Cap nut (17) ... Keyway (19) ... Concave circumferential groove (20) ... Hub bolt receiving hole (22) ...
...Elastic claw (23) ...Claw retraction hole (26) ...Claw receiving window (27) ...Positioning tongue piece (28) ...Pole (29) ...Coil spring figure 2 procedural amendment May 1, 1986

Claims (1)

[Claims] 1. A C-shaped stopper for the hole as a whole so as to be inserted and locked in a non-rotatable manner into the keyway (17) cut out in the prepared hole (S) of the wheel mounting surface (M). The anti-rotation ring (A) is wound in the form of a ring, the receiving hole (20) for the hub bolt (14) is opened at an eccentric position, and the conical receiving seat surface (16a) of the prepared hole (S) is formed.
) and a bush (B) with a protruding conical flange (18a) that fits the bush (B), and a concave circumferential groove for receiving the anti-rotation ring (A) in the cylindrical part (18b) of the bush (B). (19) and a claw retraction hole (23) that opens along the radial direction, and an elastic claw (22) made of a spring material is inserted into the retraction hole (23).
The claw tip (22a) is inserted and installed in an elastically biased state where it is always exposed from the retraction hole (23), and on the other hand, the bush (B) is inserted into the cylindrical part (25a) of the anti-rotation ring (A). A locking flange (25b) protruding inward to be inserted and locked into the concave circumferential groove (19), and a claw receiving window (25b) that selectively receives the claw tip (22a) of the elastic claw (22). 26), and a rotation prevention ring ( A) in the adhered state, and the ring (A)
) is assembled and integrated with the bush (B) so that it can be rotated while resisting the pressing force of the elastic pawl (22). 2. In order to be inserted and locked into the key groove (17) cut out in the prepared hole (S) of the wheel mounting surface (M) without being able to rotate, the entire ring is wound into the form of a C-shaped upper ring for the hole. The bent anti-rotation ring (A) has a receiving hole (20) for the hub bolt (14) opened at an eccentric position, and a conical receiving surface (16a) of the pilot hole (S).
) and a bush (B) with a protruding conical flange (18a) that fits the bush (B), and a concave circumferential groove for receiving the anti-rotation ring (A) in the cylindrical part (18b) of the bush (B). A ball (28) and a coil spring (29) are placed in the hole (23), and the ball (28) is a coil spring. (29) so that it is always exposed from the recessed hole (23) in a resiliently biased state, and on the other hand, the concave circumferential groove ( A locking flange (25b) protruding inwardly to be inserted and locked into the ball receiving window (25b) that selectively receives the ball (28).
A rotation prevention ring (6) is provided on the cylindrical portion (18b) of the bush (B) so that the locking collar portion (25b) locks in the concave circumferential groove (19). A) is attached, and the bush (B) is assembled and integrated with the ring (A) so that it can be rotated while resisting the pressing force of the ball (28). Adjustment bush assembly for mounting wheels. 3. The elastic pawl (22) is self-retained in the cylindrical portion (l8b) of the bush (B) through which the hub bolt receiving hole (20) is opened at an eccentric position, and the entire hole is provided with a C-shaped stopper. An elastic force that selectively and constantly locks the claw tip (22a) of the elastic claw (22) on the cylindrical portion (25a) of the anti-rotation ring (A) bent into a ring shape. A plurality of claw receiving windows (26) are opened to allow the bushing (B) to be rotated with respect to the rotation prevention ring (A) while resisting the above-mentioned pressing force. , and the adjustment bushing assembly, which is formed by assembling and integrating the ring (A) in a state where it is attached to the bush (B), is prepared by inserting the pilot hole (S) in the wheel in advance so that the ring (A) does not rotate. ) and tightly fit the shaft hole (12) of the wheel into the center protrusion (11) integrally protruding from the hub (10) via a separate centering collar (13). At the same time, by rotating the bush (B) with respect to the rotation prevention ring (A), the hub bolt receiving hole (20) is inserted into the hub (
10) A wheel mounting method using an adjustment bush assembly, which is adjusted to match the hub bolt (14) planted from the hub bolt (14).