JPH0655942U - Car steering hub - Google Patents

Abstract

(57) [Summary] [Purpose] A structure that allows the steering wheel of an automobile to be attached to and removed from the hub body in a short time. [Structure] A large-diameter female screw hole coaxial with the shaft hole is made in the hub body, and the steering wheel is fastened and fixed with a large-diameter tightening nut having a male thread. A plurality of pins are planted on the top of the main body to prevent the steering from turning. [Effect] The steering wheel can be easily and quickly attached to the hub body by operating one screw or nut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for attaching a steering wheel (handle) of an automobile to a hub body.

[0002]

[Prior art]

 The steering wheel of a car is originally attached to the car, but it is often replaced with a special wheel made by a different manufacturer according to the preference of the user, for example, a laser-tensioned wheel. The steering wheel is directly connected to the shaft via the steering hub. Usually, a plurality of screw holes are arranged along the periphery on the upper surface of the hub body, and a plurality of screws having the same arrangement are formed on the steering wheel and fixed by a plurality of screws.

Wheels of different manufacturers may have holes different from the arrangement of the screw holes in the steering hub, and the steering wheel cannot be mounted as it is. It has been practiced to duplicate the holes in the above and to attach them on the hub via an attachment hub.

[0004]

[Problems to be solved by the device]

 As described above, since the steering wheel is attached to the hub body by aligning a large number of screw holes, it is complicated and time-consuming to remove and attach the steering wheel to adjust the steering wheel position. By the way, in rally competitions that use four-wheel-drive vehicles, etc., use a small-diameter steering wheel (for example, 300 mm diameter or less) that allows quick driving on off-road, and when driving on a normal road or public road. , Safe driving must be performed using the steering wheel of the specified size (350 to 360 mm diameter). In order to be able to quickly change handles of different diameters during competition, there is a need for a steering hub that allows easy wheel installation and removal. The present invention addresses these needs.

[0005]

[Means for Solving the Problems]

 According to the present invention, a hub body has a female screw hole coaxial with a shaft mounting hole, and a fastening nut having a male screw is used to fasten and fix a steering wheel on the main body. It is provided as a detent for the steering wheel. This allows the steering wheel to be installed and removed with a simple operation of one screw or nut.

[0006]

【Example】

 Hereinafter, the present invention will be described in detail with reference to the drawings of the embodiments. FIG. 1 is a sectional view showing the disassembled components before mounting the steering wheel on the steering hub of the present invention. Reference numeral 1 is a steering hub body made of a cylindrical metal. The hub main body has a shaft attachment spline hole 2 at the center bottom thereof, and a large diameter hole 4 having a female screw (tightening screw portion) 3 at an upper portion coaxial therewith. On the upper surface of the hub body, there are provided a plurality of small screw holes 6 having locking pins 5 planted in an appropriate arrangement. 7 is a steering shaft, and 8 is a shaft tightening nut. 9 is a steering wheel (handle), 10 is a washer, 11 is a tightening nut, and 12 is a horn cap.

FIG. 2 is a top view of the hub body, in which a shaft attachment spline hole 2 for alignment and a large-diameter hole 4 having a female screw 3 surrounding it can be seen in the center of the bottom portion. The multiple screw holes 6 on the upper surface are two types of screw hole arrangements corresponding to different steering wheel standards, and the holes are displaced and overlapped, and alternately arranged. One of these standards As shown in FIG. 6 and FIG. 7, the rotation preventing pin corresponding to the screw hole may have any shape at the upper portion as long as it has a screw at the lower portion. For example, a taper may be attached.

FIG. 5 shows an example of a steering wheel in a somewhat reduced plan view. A large-diameter through hole 13 corresponding to the male thread portion of the end nut is provided at the center, and, for example, six holes of one steering standard are provided along the periphery thereof. In FIG. 4, a through hole 14 for inserting a horn cap is opened at the center with a tightening nut 11. The nut 11 is provided with an arbitrary polygonal shape such as an octagonal shape, a hexagonal shape, or a tightening means. Note that the washer 10 shown in FIG. 1 is not always necessary.

FIG. 3 is a sectional view showing a state in which the steering wheel is assembled to the steering hub. The spline portion of the shaft is inserted into the spline hole 2 of the hub body and fixed by the shaft tightening nut 8. The detent pin 5 on the upper surface of the hub body is fitted in the hole of the steering wheel and functions as a detent. The screw part of the tightening nut engages with the tightening screw part 3 of the hub body through the center hole of the wheel, and the nut is firmly tightened by using a spanner or the like, whereby the steering wheel is tightened and fixed to the hub body. The horn cap 12 is inserted from above, and wiring of an electric system (not shown) is connected.

[0010]

[Effect of device]

 The present invention is configured as described above, and has the effects described below. Centering the steering wheel on the hub body with a nut or a screw makes it easy to install and remove, and it is very advantageous for exchanging wheels especially in rally competitions.

[Brief description of drawings]

FIG. 1 is a developed sectional view of a steering hub of the present invention before assembling.

FIG. 2 is a top view of the hub body.

FIG. 3 is a sectional view of the steering hub of the present invention in an assembled state.

FIG. 4 is a top view of a tightening nut.

FIG. 5 is a plan view of an example of a steering wheel.

FIG. 6 is a front view of a detent pin.

FIG. 7 is a modified front view of the detent pin.

[Explanation of symbols]

 1 hub body 2 spline hole 3 female screw hole 4 large diameter hole 5 non-rotating pin 6 small screw hole 7 steering shaft 8 shaft tightening nut 9 steering wheel (handle) 10 washer 11 tightening nut 12 horn cap 13 through Mouth 14 through hole

Claims (1)

[Scope of utility model registration request] 1. A cylindrical hub body having a central bottom portion with a spline hole for mounting a shaft, and an upper portion coaxial therewith, which has a large-diameter hole with a tightening female thread cut, and which extends along the periphery of the upper surface of the hub body. With a plurality of small screw holes in which steering detent pins are implanted, the steering wheel is tightened and fixed with a tightening nut with a large diameter male screw from above with the steering wheel mounted on the hub body. Car steering hub.