JPH075802U - Car wheel - Google Patents

Abstract

(57) [Abstract] [Purpose] To enable easy and convenient adjustment of the offset amount in automobile wheels. [Structure] A recessed step surface (28) for receiving a shim is cut out on a disk mounting surface (XX) with respect to an axle hub (18), and a plate thickness (t) is changed to the recessed step surface (28) differently. Insert the offset adjustment shim (S) compatible with
Moreover, it was fixedly integrated with a screw (29).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the improvement of an automobile wheel, and in particular, is devised so that the amount of offset can be adjusted easily and conveniently.

[0002]

[Prior art]

 Generally, for automobile wheels, it is necessary to change the size (offset amount) between the disk mounting surface of the axle and the equator line of the rim (the amount of offset) for each automobile manufacturer and each vehicle type. Otherwise, the disk may hit the braking parts and the fender of the car, or it may be difficult to install the tire chain.

Therefore, in the case of an assembly type wheel which has conventionally been composed of two pieces of a disc and a rim, and the rim of which is also divided into a front side and a rear side, various kinds of rims are prepared and prepared in advance. By replacing this with a disc, and in the case of a one-piece wheel in which the disc and rim are continuously integrated, various kinds of the wheel itself are prepared in advance, and by replacing them, the offset amount is changed. I am adjusting.

[0004]

[Problems to be solved by the device]

 However, these methods are very complicated in manufacturing various wheels and rims of which the amount of offset changes, and at the same time, it is necessary to manage various kinds of inventory, and it is still inferior in compatibility and mass production effect. Is clear.

[0005]

[Means for Solving the Problems]

 The present invention intends to improve such a problem, and in view of the construction as an automobile wheel that is useful for that purpose, a concave step surface for receiving a shim is cut out on the disk mounting surface to the hub of the axle, and the concave step is formed. The feature is that an offset adjustment shim whose plate thickness changes differently is interchangeably fitted to the surface and fixedly integrated with a screw.

[0006]

[Action]

 According to the above configuration of the present invention, it is possible to easily and conveniently adjust the wheel offset amount, which is different for each automobile manufacturer and each vehicle model, only by replacing the offset adjustment shims having different plate thicknesses. Since it is not necessary to pre-manufacture and stock the wheel itself and its rim as several kinds as in the past, it is possible to maximize compatibility and mass production effects. By adopting the configuration of No. 2, it can be further encouraged.

Further, since the above-mentioned shim is fitted into the recessed step surface on the wheel disk mounting surface side, it is more stably fixed by screws and cannot be removed, so that it is integrally attached to the disk mounting surface. Unlike the simple washers or spacers, which are independent of each other, the wheel can be attached to the hub of the axle extremely easily and efficiently, and firmly and correctly attached, and the workability of attaching / detaching is extremely excellent. .

In this respect, particularly if the structure of claim 3 is adopted, the screw has a function of preventing the shim from coming off, and the hub bolt escape hole on the shim side and the hub bolt receiving hole on the disk mounting surface side. Since the automatic positioning action with the above is also performed, the workability can be further improved.

[0009]

【Example】

 1 to 12 show a first embodiment of the present invention, and (D) is a wheel disc made of a light alloy. A relatively large shaft hole (11) is formed in the center of the portion (10). (12) and (13) are located around the shaft hole (11) and are formed in the rear surface (mounting surface of the wheel disk) of the boss portion (10) respectively to receive the female screw for receiving the torque pin and the hub nut relief. There are two types of grooves for insertion, both of which are a plurality of points which are distributed in a radial symmetry pattern as a whole, and the two types of which are alternately arranged.

Reference numeral (14) is a torque pin integrally screwed into the female screw (12) of the wheel disk (D) in a state of being implanted. The torque pin is projected from the rear surface of the boss portion (10) rearward by a predetermined amount. There is. Reference numeral (15) is a locking notch for a rotary operation tool attached to the projecting rear end of each torque pin (14), and the torque pin is locked by this rotary operation tool (not shown). (14) will be screwed and fastened to the female screw (12).

Similarly, (16) is a stopper flange that is slightly oversized from the middle position of each torque pin (14), and is a concave step surface cut out at the opening edge of the female screw (12). By engaging with (17), the amount of overhang at the time of fixing the implant is fixed and the torque pin (14) itself is prevented from swinging or falling.

(A) is a separate adapter for attaching the boss portion (10) of the wheel disk (D) to the hub (18) of the axle, which is forged or pressed from iron or light alloy, or other plastic By processing, it is molded into an overall top hat type or cylinder hat type.

That is, in FIG. 5 which is extracted and shown, (19) is a substantially conical body portion of the adapter (A), which is provided in the shaft hole (11) of the wheel disk (D). It is immersive in size. Reference numeral (20) is a relatively thin solid center shaft that continuously and integrally projects forward from the center (top surface) of the conical body (19) and has a diameter larger than that of the body (19). It has a small constant thickness (d1), and on its circumferential surface is a male screw (21) for screwing and fastening with a center nut, which will be described later, and at the same center, which is for receiving a holding bolt, which is described later. Depth female threads (22) are each machined.

In this case, with respect to the male screw (21) and the female screw (22) of the center shaft portion (20), the spiral pitches (s1) (s2) and the spiral directionality are changed differently from each other. As a result, the center nut, which will be described later, is locked so that it will not easily go around and loosen under the condition of use in which it is restrained by the presser bolt.

(23) is a retaining collar receiving ring portion for the pressing collar, which is continuously and vertically erected forward from the shoulder position of the conical body portion (19) of the adapter (A). By fitting the leg ring part so as to receive the force, the rotational bending stress concentrated on the center shaft part (20) is effectively dispersed, and the center shaft part (20) is accidentally broken. Prevent accidents and improve durability and stability of wheel mounting.

The receiving ring portion (23) stands up substantially in parallel with the center shaft portion (20), but the standing length is naturally shorter than that of the center shaft portion (20), Immerse in the shaft hole (11) of the wheel disk (D).

Further, (24) is a large-diameter joint flange portion continuously and integrally projected from the base end position of the conical barrel portion (19) of the adapter (A), and here, the wheel disc ( A plurality of torque pin receiving holes (25) are formed as a radiation symmetrical distribution type corresponding to the torque pin (14) protruding from the boss portion (10) of D).

Reference numeral (26) denotes a plurality of hub bolts which are integrally planted forward from the hub (18) of the axle, and the hub bolt receiving holes (27) for receiving the hub bolts are also provided to project the adapter (A). Openings are formed in the joint flange portion (24) in an array relationship in which the torque pin receiving holes (24) are alternately distributed.

The rear surface of the joint flange portion (24) forms a mounting surface (X-X) for the hub (18) of the axle, which is a notch as a concave step surface (28) as shown in FIGS. The recessed step surface (28) is provided with a separate annular plate-shaped offset adjusting shim (S) fitted to the spigot and fixed by a positioning disc screw (29). There is.

That is, the shim (S) is fitted into the protruding joint flange portion (24) of the adapter (A) so as to be attached to the backing, and the shim (S) is integrated through the shim (S). ) Is attached to.

Therefore, as is clear from FIGS. 6 and 7, a relatively large axle receiving alignment hole (30) is formed in the center of the shim (S), while the peripheral portion also has the above-mentioned joint. A plurality of torque pin receiving holes (31) that communicate with the torque pin receiving holes (25) of the flange portion (24) and hub bolt releasing holes (32) that also communicate with the hub bolt receiving hole (27). However, it is effective for mass production to dimension the torque pin escape hole (31) and the hub bolt escape hole (32) to have the same opening diameter. However, the opening of the torque pin escape hole (31) may be omitted depending on the length of the torque pin (14).

In that case, as suggested by the comparison between FIG. 7 and FIGS. 8 and 9 as the above-mentioned shim (S), only the plate thickness (t) or the plate thickness (t) and the axle receiving alignment is performed. It has been prepared in advance as several types of which both the opening diameter (w) of the hole (30) and the difference vary, and these several types are used interchangeably or selectively to bond the adapter (A). The flange portion (24) is adapted to be attached to the axle hub (18).

The positioning disc screw (29) holds the shim (S) in the joining flange portion (24) of the adapter (A) so that the shim (S) cannot be removed and is fixed to the shim (S) side. The torque pin escape hole (31) and the hub bolt escape hole (32) of the above are automatically and properly connected to the torque pin receiving hole (25) and the hub bolt receiving hole (27) of the joint flange portion (24) side, respectively. It is also possible to improve the workability of attachment / detachment and replacement by performing the desired positioning function.

Of course, the escape holes (33) of the countersunk screws (29) are, of course, arranged such that the shims (S) are distributed in a common position. Reference numeral (34) is a screw hole which is in communication with the escape hole (33) of the countersunk screw (29) and is formed corresponding to the joint flange portion (24) of the adapter (A).

According to the configuration of the shim (S) as described above, when the offset amount of the wheel changes depending on the manufacturer of the automobile and the vehicle type, the offset amount is adjusted by replacing the various shims (S). Can be done. In addition, if several types of shims (S) are prepared, in which not only the plate thickness (t) but also the opening diameter (w) of the axle receiving alignment hole (30) is changed, if different types of shims (S) are prepared, There is also the advantage that a consistent hub centric state can be maintained at all times, depending on the thickness of the axle, which varies from time to time.

In any case, the hub bolt receiving hole (27) of the adapter (A) and the hub bolt escape hole (32) of the shim (S) are loosely fitted to the scraping hub bolt (26), and the hub bolt ( 26) The hub nut (35) is screwed and fastened from the front to the adapter (A) so that the adapter (A) is primarily attached and fixed to the hub (18) of the axle, and subsequently the adapter (A) is secondarily attached. By pressing the torque pin (14) into the torque pin receiving hole (25) of A) from the front, the wheel disk (D) is attached to and integrated with the adapter (A).

Further, the hub bolt receiving holes (27) which are distributed in the joint flange portion (24) of the adapter (A) have a conical shape which matches the conical surface of the hub nut (35), and therefore the hub bolt. As a result, an automatic centering action is achieved when the hub nut (35) is screw-fastened to the (26). At that time, due to the fact that the plate thickness (t) of the shim (S) changes, several kinds of hub nuts (35) having a required length corresponding to this are prepared as shown in FIGS. It will be used interchangeably or selectively with the shim (S).

Further, reference numeral (C) in FIGS. 1 to 4 indicates a pressing collar loosely fitted to the center shaft portion (20) of the adapter (A) from the front side, which corresponds to the wheel disc (D). The size that blocks the shaft hole (11) is made from light alloy in a disk shape, but from the rear surface, the leg that is inserted and fitted into the receiving ring part (23) of the adapter (A). The ring portion (36) is also projected continuously and integrally.

Reference numeral (37) is a conical concave curved surface that is depressed in the center of the front surface of the pressing collar (C), and fulfills an aligning action with a center nut described later. Reference numeral (38) is a locking shoulder surface which is also formed on the peripheral portion of the presser collar (C), and is locked to the boss portion (10) of the wheel disc (D) from the front.

(N) is a comparative diameter screwed and fastened to the male screw (21) of the center shaft portion (20) of the adapter (A) so as to fix the holding collar (C) from the front. It is a small center nut, and a flange (40) having a conical convex curved surface (39) matching the conical concave curved surface (37) of the pressing collar (C) is projected from the rear end portion thereof, while At the front end of the center nut (N), a concave step surface (41) for receiving a holding bolt, which will be described later, is cut out.

Further, (B) is a holding bolt for the center nut (N), and its head portion (42) has a constant diameter (d2) larger than that of the center shaft portion (20) of the adapter (A). When it is screwed from the front to the female screw (22) of the center shaft portion (20) of the center shaft portion (20), the head portion (42) of the presser bolt (B) having a large diameter is attached to the center nut (N). (4) is locked so as to sink into the concave step surface (41), and the center nut (N) is stopped from the front so as not to loosen.

At that time, a special tool receiving notch (43) for preventing theft is provided on the large-diameter head (42) of the presser bolt (B), and a special tool as a custom-made product adapted to this is provided. Unless a moving operation tool (not shown) is locked, the holding bolt (B) cannot be rotated, and the center nut (N) is extended to the center shaft portion (20) of the adapter (A). As a result, it is possible to prevent wheel theft accidents. The commercially available spanner, wrench, and other general-purpose operation tools are designed so that they cannot be properly locked in the tool receiving notch (43) of the holding bolt (B).

In this respect, in the illustrated embodiment, the tool receiving notch (43) is cut off from the circumferential surface of the head (42) of the presser bolt (B) as a pair of flat straight surfaces facing each other. As long as the above purpose can be achieved, for example, an elliptical groove may be opened at the center of the head portion (42).

Based on the first embodiment shown in FIGS. 1 to 12, a method of attaching the wheel disc (D) to the hub (18) of the axle will be described. First, the shim (S) is fitted to the backing attachment state. The overhanging flange portion (24) of the adapter (A) that has been attached and integrated is overlapped with the hub (18) of the axle, and the hub bolt (26) that is planted from the hub (18) is connected to the shim (S). The hub nut (35) is screwed into the hub bolt (26) from the front of the hub bolt receiving hole (32) of the adapter (A) through the hub bolt receiving hole (27) of the adapter (A). Attach A) to axle hub (18) and secure.

Then, in a state where the torque pin (14) is press-fitted into the torque pin receiving hole (25) of the adapter (A), the wheel disk (D) is inserted into the body (19) of the adapter (A) from the front. The boss portion (10) is fitted, and then the press collar (C) is inserted into the center shaft portion (20) protruding from the center (top surface) of the body portion (19).

Then, the center nut (N) is screwed and fastened to the male screw (21) of the center shaft portion (20), and the presser collar (C) is pressed by the center nut (N). The press bolt (B) is screwed into the female screw (22) of the portion (20) so that the large diameter head (42) of the press bolt (B) does not loosen the center nut (N). Stop from the front.

Then, the rotational torque of the hub (18) is primarily transferred from the hub bolt (26) and the hub nut (35) to the adapter (A), and secondly from the adapter (A) to the torque pin ( Smoothly and reliably transmitted to the wheel disk (D) via 14), so that the wheel rotates without hindrance.

In addition, in the wheel mounting state as described above, the male screw (21) and the female screw (22) engraved on the center shaft portion (20) of the adapter (A) have their spiral pitch ( s1) and (s2) are different from each other in the spiral directionality, and a center nut (N) is screwed and fastened to the male screw (21) of the screw while the center nut (22) of the female screw (22) is also changed. Since the retaining bolt (B) for stopping (N) is screwed and fastened, the center nut (N) may be accidentally loosened even if it is repeatedly subjected to sudden braking, other vibrations, or shocks while traveling. There is no risk of this happening, and it is possible to maintain a stable and stable wheel mounting condition for a long time.

Further, in the wheel mounting state as described above, the inserting leg ring portion (36) standing upright in the rear direction of the presser collar (C) corresponds to the shoulder position of the conical trunk portion (19) of the adapter (A). Since it is received in a stable fitted state by the receiving ring portion (23) that stands vertically toward the front, the thickness (d1) of the center shaft portion (20) in the adapter (A) is temporarily reduced. Even if the rotational bending load is repeatedly concentrated on the projecting base end position of the center shaft portion (20), the stress can be effectively reduced by being dispersed by the receiving ring portion (23). Therefore, it is possible to completely prevent the center shaft (20) from being broken.

Next, FIGS. 13 to 15 show a second embodiment of the present invention, in which the wheel disk (D) is mounted on the axle without the adapter (A) as in the first embodiment. It is directly attached to the hub (18).

Since the rear surface of the boss portion (10) of the wheel disk (D) forms the mounting surface (XX) of the axle for the hub (18) as described above, there is a concave step surface for receiving the shim (here). By notching 28), the above-mentioned offset adjustment shim (S) is fitted to the concave step surface (28), and it is attached integrally so that it cannot be removed by the positioning screw (29). can do.

As is clear from the comparison of FIGS. 13 to 15, the shim (S) is the plate thickness (t) alone or the plate thickness (t) and the opening diameter (w) of the axle receiving alignment hole (30). It is needless to say that it is prepared and prepared in advance as a few kinds which are different from each other, and it is interchangeably or selectively fitted to the wheel disk mounting surface (XX) and used. Therefore, it is possible to adjust the amount of wheel offset that differs depending on the car manufacturer and its model.

Reference numeral (44) is a center cap that replaces the center nut (N) and the presser collar (C) of the first embodiment. Since the other structure of the second embodiment is substantially the same as that of the first embodiment, only the corresponding reference numerals to those in FIGS. Is omitted.

[0044]

[Effect of device]

 As described above, in the automobile wheel of the present invention, due to its constitution, the disc mounting surface (XX) with respect to the hub (18) of the axle is notched with the shim receiving concave step surface (28), and the concave step is formed. Since the offset adjusting shim (S) whose plate thickness (t) changes differently is fitted into the surface (28) interchangeably and is fixedly integrated by the screw (29), the problems of the prior art described at the beginning are solved. It can be improved, and there is no need to remodel the wheel itself or its rim, and the offset amount can be adjusted very easily, and the compatibility and mass production effect are remarkably excellent.

In particular, if the configuration of claim 2 is adopted, not only the plate thickness (t) of the shim (S) but also the opening diameter (w) of the axle receiving centering hole (30) thereof changes. Since it is available as several types, it is possible to cope with changes in the thickness of the axle, and there is the effect that a stable and firm attachment of the hub centric is always obtained.

Further, if the configuration of claim 3 is adopted, the countersunk screw (29) has not only the fixing function of the shim (S) but also the hub bolt escape hole (32) on the shim (S) side, The shim (S) can be attached and detached more and more easily because it has a positioning function that should match and communicate with the hub bolt receiving hole (37) on the wheel disk (D) side or the adapter (A) side. There is an effect that can be done efficiently.

Further, it can be said that the invention is a very useful idea because it is simple enough as a necessary configuration and can be widely applied to various types of automobile wheels.

[Brief description of drawings]

FIG. 1 is a schematic front view of an automobile wheel to which the present invention is applied.

FIG. 2 is a partially enlarged front view of FIG.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is a half-cutaway cross-sectional view showing an extracted adapter.

FIG. 6 is a perspective view showing an offset adjustment shim extracted.

7 is a half-cutaway sectional view taken along the line 7-7 in FIG.

FIG. 8 is a half-cutaway cross-sectional view showing another shim used interchangeably with the shim of FIG. 7.

FIG. 9 is a half-cutaway sectional view showing another shim which is also used interchangeably.

FIG. 10 is a side view showing a hub nut extracted.

11 is a side view of another hub nut used interchangeably with the hub nut of FIG.

FIG. 12 is a side view showing another hub nut which is also used interchangeably.

FIG. 13 is a side sectional view showing a second embodiment of the present invention.

FIG. 14 is a side sectional view corresponding to FIG. 13, showing another shim fitting state.

FIG. 15 is a side cross-sectional view corresponding to FIG. 13 and showing a further fitted state of the shim.

[Explanation of symbols]

 (10) -Boss (14) -Torque pin (18) -Hub (19) -Conical body (20) -Center shaft (21) -Male screw (22) -Female screw (23) -Receptive ring ( 24) -Joint flange part (25) -Torque pin receiving hole (26) -Hub bolt (27) -Hub bolt receiving hole (28) -Concave step surface (29) -Disc screw (30) -Axle receiving centering hole (31) ) · Torque pin relief hole (32) · Hub bolt relief hole (34) · Screw hole (35) · Hub nut (36) · Insert leg ring (A) · Adapter (B) · Press bolt (C) · Press collar (D) -Wheel disk (N) -Center nut (S) -Offset adjustment shim (t) -Thickness (w) -Opening diameter (XX) -Disk mounting surface

Claims (3)

[Scope of utility model registration request] 1. A disc mounting surface (XX) for a hub (18) of an axle is cut out with a shim receiving concave step surface (28), and a plate thickness (t) is formed on the concave step surface (28). An automobile wheel characterized in that offset adjustment shims (S) that differ from each other are fitted in a compatible manner and fixedly integrated by screws (29). 2. The wheel according to claim 1, wherein an opening diameter (w) of an axle receiving aligning hole (30) opened at a central portion of each shim (S) is changed. 3. A plurality of hub bolts having openings distributed on the periphery of the shim (S) when the screw (29) is used for positioning and thereby fixes the shim (S) to the receiving concave step surface (28). The vehicle according to claim 1, characterized in that the escape hole (32) is defined so as to match with and communicate with the plurality of hub bolt receiving holes (27) which are originally distributed on the disk mounting surface (XX). Wheel.