JP3025253U - Center lock wheel mounting structure - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a center lock structure for fixing a wheel to an axle, capable of preventing loosening of a nut and preventing the wheel from being stolen. [Structure] At least a part of a center lock nut is provided with a slotted portion, a bolt for changing a gap of the slotted portion is prepared, and the bolt is tightened to prevent loosening of the nut.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure for mounting a center lock wheel on an adapter flange.

[0002]

[Prior art]

 The center lock wheel is used in highly-designed passenger cars and sports cars, and is one of the status symbols in the car society. In addition, in vehicles for car racing, the center lock system is adopted because it is necessary to quickly remove and attach the wheels. On the other hand, when mounting a wheel on an ordinary vehicle, the wheel mounting holes are inserted into four or five bolts embedded in the hub flange of the vehicle and the nuts are tightened. When doing so, there is a drawback that the nut and its surroundings must be incorporated into the design. In that respect, the center lock system has a great deal of freedom in design, and the beauty of the spoke type wheel in classic cars is that the center lock system is great.

The most important point in the center lock system is looseness of the center lock nut due to the fact that there is only one nut for fixing the wheel. The nut loosens due to vibration of the wheel while driving and rapid acceleration / deceleration. Therefore, although various means such as screw shape, pitch, left screw right screw on the right side and left side of the vehicle, and screw and pin installation to prevent loosening have been used, it is safer and more reliable. There is a demand for a nut locking structure.

[0004]

[Problems to be solved by the device]

 The problem to be solved is to provide a mounting structure for a center lock wheel that can prevent the center lock nut from loosening simply and reliably.

[0005]

[Means for Solving the Problems] The present invention provides a center lock wheel mounting structure using an adapter flange for mounting a vehicle wheel such as a light alloy wheel on a hub flange of an axle. The center lock nut is prevented from being loosened by providing a slotted portion at least in part and changing the gap between the slotted portions.

Further, by providing the slit portion so that the height dimensions X and Y of the two parts divided by providing the slit portion in the center lock nut satisfy the condition of X <Y, the nut is Keep the contact area of the wheels unchanged.

[0007]

【Example】

 FIG. 1 is a sectional view showing a center lock structure according to the present invention. 1 is a wheel, 2 is an adapter flange, 3 is a nut, 4 is a slot, and 5 is a bolt. First, the adapter flange 2 is fixed to the hub flange 6 provided on the axle using the wheel nut 11. A plurality of torque pins 7 are press-fitted into the adapter flange 2, and holes 8 provided on the wheel side are fitted into the holes to transmit the rotational force of the axle. A screw 9 is provided at one end of the adapter flange 2, and a nut 3 is screwed in to fix the wheel 1 to the adapter flange 2. Tighten the nut 3 with the specified torque wrench.

The nut 3 is provided with a slot portion 4. A plan view of the entire nut is shown in FIG. 2, and a section taken along the line A-A 'of the slot is shown in FIG. Screw holes 10, 10-1, 10-2 are provided on one side of the part that is divided into two by the slitting part, and bolts 5, 5-1, 5-2 are prepared on the other side that is divided. By tightening the bolt, the gap between the slits can be changed, so that the screw pitch can be changed and the nut 3 can be prevented from loosening.

In FIG. 1, the heights of the two parts divided by the slot portion 4 are X and Y, and in the present invention, the condition of X <Y, that is, the height of X is smaller than the height of Y. The reason is that when the bolts 5, 5-1 and 5-2 are tightened, deformation of the Y part is suppressed by making it easier to deform the X part, and it is not necessary to reduce the contact surface with the wheel 1. is there. Therefore, the nut 3 can prevent the loosening while maintaining the force of pressing the wheel 1.

Generally, a joint hole into which a wrench used when tightening the bolts 5, 5-1 and 5-2 or a special shape such as a chrysanthemum pattern is formed on the outer peripheral surface of the head is used. No hand tools can be used, which can help prevent theft.

A cover 12 is fitted so as to cover the nut 3. The cover is provided with a plurality of hooks 13 so that it can be engaged with the groove 14 provided on the adapter flange side. A brand name can be displayed on the surface of this cover to improve the overall design. Further, the peripheral portion 15 of the cover is deeply formed to cover almost the entire side surface of the nut 3 to prevent dust and mud from entering the slot.

[0012] The cover may be shaped like a small cover 12-1 as shown in Fig. 4 so as to cover only the opening of the adapter flange, or As shown in FIG. 5, the cover may be omitted by eliminating the opening of the adapter flange. In addition, it is also possible to put a logo such as a trademark on the part visible from the outside.

[0013]

[Effect of device]

 As described above, the center lock structure of the present invention can prevent the nut from loosening by tightening the nut to fix the wheel and then tightening the bolt prepared in the nut 3. Further, when the bolt 5 is tightened, it is useful to prevent theft if a bolt having a structure that can be tightened only with a special tool is used.

[Brief description of drawings]

FIG. 1 is a sectional view showing a center lock structure of the present invention.

FIG. 2 is a plan view showing the entire nut.

FIG. 3 is a sectional view taken along the line A-A ′ of the nut.

FIG. 4 is a sectional view showing a small cover.

FIG. 5 is a sectional view showing another embodiment of the adapter flange.

[Explanation of symbols]

 1 wheel 2 adapter flange 3 nut 4 slotted part 5, 5-1, 5-2 bolt 6 hub flange 7 torque pin 9 screw 10, 10-1, 10-2 screw hole 12, 12-1 cover

Claims (3)

[Scope of utility model registration request] 1. A center lock structure for a vehicle wheel, wherein an adapter flange is used to mount a light alloy wheel on a hub flange of an axle, and at least a part of the center lock nut is provided with a slit portion. The center lock wheel mounting structure is designed to prevent the center lock nut from loosening by changing the gap between. 2. The height dimensions X and Y of two parts which are divided by providing a center lock nut with a slit portion.
The center lock wheel mounting structure according to claim 1, wherein is set so as to satisfy the condition of X <Y. 3. The center lock wheel according to claim 1, wherein a special hole such as a chrysanthemum pattern is formed in a joint hole into which a wrench used when tightening the slotted portion with bolts 5, 5-1 and 5-2 is fitted. The attachment structure for a center lock wheel according to claim 1 or 2, characterized in that it has a different sectional shape to prevent theft.