JPS6333682Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Purpose of the Invention [Field of Industrial Application] The present invention relates to a wheel cap device for vehicles, particularly motorcycles.

[Conventional technology]

In spoke-type pneumatic tires for motorcycles, wheel caps are attached to both sides of the pneumatic tire wheels to cover the spokes in order to protect the spokes from dust, dirt from muddy water, and contact with other objects. A wheel cap device is known in which both wheel caps are fastened together with a threaded part that passes through them, the peripheral edge of each wheel cap is pressed against the wheel rim, and a cutout window is provided in the portion of the wheel cap located at the tube valve mouthpiece. (For example, Utility Model Publication No. 31-2816).

[Problem that the invention attempts to solve]

However, due to severe vibrations while the vehicle is running, the screw parts used to tighten the wheel cap together may become loose, causing the wheel cap to shift in the circumferential direction relative to the wheel.

The cutout window for the tube valve cap of the wheel cap is opened only to the minimum necessary size to prevent dust from entering, so if the wheel cap shifts even slightly in the circumferential direction, the tube valve cap and the notch will open. Due to the misalignment of the windows, the cap may be hidden behind the wheel cap, which may cause confusion when inflating later.

This invention was devised in view of the above points,
The purpose is to prevent the wheel cap from shifting in the circumferential direction relative to the wheel.

B. Composition of the invention [Means for solving the problem] In order to achieve the above object, the present invention attaches wheel caps that cover the spokes to both sides of the wheel of a pneumatic tire wheel, and penetrates both wheel caps. In a wheel cap device that is fastened together with threaded parts, presses the peripheral edge of each wheel cap against the wheel rim, and has a cutout window in the part of the wheel cap located at the tube valve base, a wheel cap rotation prevention piece is attached to the wheel rim. is fixed with a lock nut of a tube valve cap, and the opposing sides of a cutout window of a wheel cap are engaged with stopper portions at both front and rear ends of the anti-rotation piece.

[Effect]

Since the cutout window of the wheel cap engages with the anti-rotation piece attached to the tube valve base, the wheel cap will not shift in the circumferential direction even if the bolts and nuts that pass through both wheel caps become loose. .

Therefore, the tube valve mouthpiece and the cutout window of the wheel cap will not be misaligned.

〔Example〕

The spokes 1 consist of three plate spokes formed by press molding, and each spoke 1 has an oblong hole 2 extending in the radial direction for weight reduction.

The left and right pair of circular wheel caps 3 and 4 have a fitting hole for the brake drum 5 in the center, a cutout window 7 in a part of the periphery for peeking out the tube valve cap 6, and a cap-like shape toward the front side. It is bulged and molded.

Tightening seats 8 are extruded inward at three equally spaced locations on the same circumference of each wheel cap 3, 4.

At the position of the wheel rim 9 where the tube valve cap 6 protrudes, a saddle-shaped wheel cap rotation prevention piece 10 that straddles the rim 9 is attached by a lock nut 11 of the tube valve cap 6 as shown in FIG. There is. Stopper portions 10a, 10 are provided at both front and rear ends of the anti-rotation piece 10 and come into contact with opposite sides of the cutout windows 7 of the wheel caps 3, 4 in the front and rear direction.
b is erected.

Place the wheel caps 3 and 4 on both sides of the wheel, covering the plate spokes 1 and facing each other, aligning the cutout window 7 with the tube valve cap 6, and engaging the cutout window 7 with the detent piece 10. , the tightening seats 8, 8 are brought into contact with each other back to back, a bolt 12 is passed through the bolt hole of the tightening seats 8, 8, a nut 13 is fitted onto the bolt 12, and both wheel caps 3, 4 are tightened together.

By tightening the bolts 12 and nuts 13, the outer peripheral edges 3a and 4a of each wheel cap 3 and 4 are tightened.
is pressed against the outer surface of the stepped portion 9a of the wheel rim 9.

C. Effect of the invention The present invention is a wheel cap device for a spoke type pneumatic tire wheel, in which the wheel cap 3, 4 is aligned with the position of the tube valve base 6 so that the wheel cap 3, 4 does not shift in the circumferential direction with respect to the wheel. 4 cutout window 7, wheel rim 9
Since the wheel caps 3 and 4 are engaged with the anti-rotation pieces 10 fixed to the wheel caps, even if the bolts 12 and nuts 13 for tightening the wheel caps together become loose, the wheel caps 3 and 4 will not shift in the circumferential direction.

Therefore, there is no misalignment between the tube valve cap 6 and the cutout windows 7 of the wheel caps 3 and 4, and there is an effect that no inconvenience occurs during air injection.

Since the wheel cap detent piece 10 is fixed to the wheel rim 9 using the lock nut 11 for tightening the tube valve mouthpiece 6, there is no need for any special means to attach the detent piece 10 to the rim 9, and the wheel Cap rotation prevention piece 10
Easy to install.

[Brief description of the drawings]

FIG. 1 is a front view of a wheel equipped with the wheel cap device of the present invention, FIG. 2 is a longitudinal sectional side view of the wheel, and FIG. 3 is an enlarged perspective view of the vicinity of the tube valve mouthpiece. 1 is a plate spoke, 3 and 4 are wheel caps,
3a and 4a are the peripheral edges of the wheel cap, 5 is the brake drum, 6 is the tube valve base, 7 is the cutout window, 8 is the tightening seat, 9 is the wheel rim, 10 is the wheel cap rotation prevention piece, and 10a, 10b are the stopper parts. , 11 is the cap lock nut, 12 is the bolt, and 13 is the nut.

Claims (1)

[Scope of utility model registration request] Attach wheel caps that cover the spokes to both sides of the pneumatic tire wheel, tighten them together with screw parts that pass through both wheel caps, press the peripheral edge of each wheel cap against the wheel rim, and tighten the tube valve of the wheel cap. In a wheel cap device that has a cutout window in the part located on the mouthpiece, a wheel cap rotation prevention piece is fixed to the wheel rim with a lock nut on the tube valve mouthpiece, and a notch in the wheel cap is attached to the stopper part at both the front and rear ends of the rotation prevention piece. A wheel cap device that engages opposite sides of the window.