JP3138024U - Aluminum wheel for minicar - Google Patents

Abstract

To provide an aluminum wheel for a minicar that can be directly mounted on a hub fixed to an axle without a spacer or an adapter, and can be reduced in weight and improved in safety.
A minicar comprising a cylindrical body part, a pair of inner and outer rim flange parts, and an attachment disk part provided on the inner surface of the cylindrical body part and having a plurality of bolt holes. On the other hand, the rim width W from the inner rim flange portion 12 to the outer rim flange portion 13 in the aluminum wheel 10 for use is made wider in the range from 4/5 to 1/1 of the rim diameter D, while the mounting disc portion 14 Is disposed at a position in the range from one third to one fourth of the rim width W from the inner rim flange portion 12.
[Selection] Figure 2

Description

  The present invention mainly relates to an aluminum wheel used in a minicar in which a vehicle of a moped tricycle having a total displacement of 49 cc is changed to a minicar specification.

  2. Description of the Related Art Conventionally, for example, a rear wheel tread width (size of a rear wheel rim) with a total displacement of 49 cc is changed from 430 mm to 506 mm to be adapted to the minicar specification. In this case, for example, as shown in FIG. 5, a spacer 23 having a predetermined width or a spacer / bolt hole number conversion adapter (not shown) is specially interposed in a hub 22 fixed to the rear wheel axle 21 for a motorized tricycle. A steel tire wheel 24 or an aluminum tire wheel (not shown) is attached, and the tread width of the rear wheel is changed to 506 mm depending on the width of the spacer 23 or the adapter.

  However, in the minicar changed to the minicar specification as described above, since the heavy spacer 24 or adapter made of steel is used, there is a problem that the so-called unsprung weight becomes heavy, and the attachment of the wheel via the spacer 23 or the adapter is present. At that time, misalignment and rattling are likely to occur, and thus the installation work requires skill. In particular, when an aluminum wheel having four bolt holes is mounted on the hub 22 having six screw holes 22a for bolts on the rear wheel axle 21 side, a complicated structure of fixing two surfaces with different numbers of bolt holes. Spacer and bolt hole conversion adapter will be used. At that time, it is necessary to fix one end flange part of the adapter to the hub with six bolts, and then to fix the aluminum wheel to the other end flange part of the adapter with four bolts. It was cumbersome and required skill and effort.

  Therefore, the present invention is made of aluminum and devised the offset amount of the wheel and the number of bolt holes so that it can be directly attached to the hub fixed to the axle without a spacer or adapter, and it is lightweight and easy to misalign and rattle. The challenge is to provide an aluminum wheel for minicars that can be suppressed to improve safety.

  In order to solve the above-mentioned problem, the device according to claim 1 of the present application is a mounting body having a plurality of bolt holes provided on a cylindrical body, a pair of inner and outer rim flanges, and an inner surface of the cylindrical body. An aluminum wheel for a minicar consisting of a rim width from the inner rim flange portion to the outer rim flange portion that is wide in the range from four-fifth to one-fifth of the rim diameter. Is arranged at a position in the range from one third to one fourth of the rim width from the inner rim flange portion.

  Further, the invention according to claim 2 of the present application is characterized in that six bolt holes are provided in the mounting disk portion at an equiangular distance from the center of the mounting disk portion.

  According to the present invention, the rim width from the inner rim flange portion to the outer rim flange portion is formed wide in the range from 4/5 to 1/5 of the rim diameter, while the mounting disc portion is formed on the inner rim flange portion. By placing it in a range from one third to one fourth of the rim width, it can be directly attached to a hub fixed to the axle without a spacer or adapter, eliminating the need for spacers and adapters that were required in the past. It can be easily and quickly and reliably installed, and it is lightweight and can easily prevent misalignment and rattling, thereby improving safety.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 are schematic views of a minicar equipped with an aluminum wheel for a minicar according to the present invention. An aluminum with a wide tire 4 is attached to a hub 3 fixed to a rear axle 2 of a motorized tricycle 1 having a total displacement of 49 cc. The wheel 10 is directly mounted, and the tread width of the rear wheel (rear wheel distance dimension) T is changed to, for example, 506 mm for a minicar specification.

  As shown in FIGS. 3 and 4, the aluminum wheel 10 is made of aluminum and is provided on a cylindrical body 11, a pair of inner and outer rim flanges 12, 13, and an inner surface of the cylindrical body 11, and a bolt hole 14a ... And a mounting disk portion 14 having 14a. Here, in the embodiment shown in the figure, the entire wheel is formed by two members that are divided into left and right at the central portion of the mounting disk portion 14, and is formed so as to be integrated by welding. Needless to say, the wheel may be integrally formed without being formed by welding two members.

  Then, the rim width W from the inner rim flange portion 12 to the outer rim flange portion 13 is in a range from 4/5 to 1/1 of the rim diameter D so that the tread width T of the rear wheel is changed to the minicar specification. The mounting disk portion 14 is arranged at a position in the range from one third to one fourth of the rim width W from the inner rim flange portion 12, and the mounting disk portion 14 is concentric with the center. Six bolt holes 14a... 14a are provided on the top at an equal angle.

  In FIG. 2, reference numeral 11 a is a mounting hole for the valve 5 formed in the cylindrical body 11, and reference numerals 6... 6 are bolts that are screwed into the bolt screw holes 3 a.

  Next, the operation of the aluminum wheel configured as described above will be described.

  As shown in FIG. 2, when the aluminum wheel 10 with the wide tire 4 is mounted on the hub 3 fixed to the rear axle 2 of the motorized tricycle 1 having a total displacement of 49 cc, the aluminum wheel 10 is directly attached to the hub 3. The mounting disk portion 14 may be bolted with bolts 6... 6 with the bolt holes 14 a... 14 a aligned with the bolt screw holes 3 a. Thereby, the tread width T of the rear wheel can be changed to, for example, 506 mm of a minicar specification only by directly mounting the aluminum wheel 10 with the wide tire 4 having a large offset amount.

  Further, since the spacers and adapters that have been necessary in the past can be dispensed with, it is possible to easily and quickly attach the spacers and adapters. Moreover, the unsprung load can be reduced and the core of the aluminum wheel 10 with respect to the hub 3 can be reduced. Deviations and rattling can be effectively suppressed, and safety can be improved.

  In the above-described embodiment, only the tread width on the rear wheel side of the moped tricycle 1 has been described. However, the aluminum wheel of the present invention can also be applied to, for example, a four-wheel minicar having two wheels on the front wheel side. Of course.

  1 is a schematic side view of a minicar equipped with an aluminum wheel for a minicar according to the present invention.   It is an expanded vertical sectional view of the principal part of the mounting state of the aluminum wheel.   It is a longitudinal cross-sectional view of the aluminum wheel.   It is a side view of the aluminum wheel.   It is conventional explanatory drawing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Aluminum wheel 11 Cylindrical trunk | drum 12 Inner rim flange part 13 Outer rim flange part 14 Mounting disk part 14a Bolt hole D Rim diameter W Rim width

Claims (2)

  An aluminum wheel for a minicar comprising a cylindrical body part, a pair of inner and outer rim flange parts, and an attachment disk part having a plurality of bolt holes provided on the inner surface of the cylindrical body part. The rim width up to the rim flange is formed wider in the range from 4/5 to 1/5 of the rim diameter, while the mounting disc part is 1/3 to 4 minutes of the rim width from the inner rim flange. An aluminum wheel for a minicar, characterized by being arranged in a range of up to 1.   An aluminum wheel for a minicar, characterized in that six bolt holes are provided on the mounting disc portion at an equal angle on the circumference concentric with the center thereof.

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