TWM469201U - Dual wheel structure having shock absorbing and abrasion wearing functions - Google Patents

Description

Double wheel structure with shock and wear resistance

The utility model relates to a roller structure, which is a double wheel structure with the functions of shock absorption and wear resistance.

The roller is widely used in all levels of life, and the choice of the material of the roller itself and the structure of the fixed seat combined with the roller are important factors influencing the use of the roller. In the prior art, the common design is to use a single roller with a set of fixed seats. However, this design is used. Since all the loads are carried by a roller, the axis of the roller or the friction surface of the roller will be Rapid cumulative wear and tear, thus increasing the chance of roller failure. In addition, in the portion of the fixing seat, a metal ball bearing is commonly used as a mechanism for rotating the fixed seat in the prior art, but the material of the ball bearing itself is too heavy to cause inconvenience in use after being completely assembled. And the excessive number of parts of the ball bearing also increases the difficulty in assembly, and the above problems are problems encountered in practical use.

In the prior art, a single roller is matched with a set of fixing seats. However, since the design is used, since all the weights are received by one roller, the axial center of the roller or the friction surface of the roller can quickly accumulate the loss. This increases the chance of a roller failure. In addition, in the portion of the fixed seat, a metal ball bearing is used as a mechanism for rotating the fixed seat, but the weight of the ball bearing itself causes the product to be inconvenient after being completely assembled, and Ball Too many parts of the bearing also increase the difficulty of assembly. The above problems are all problems encountered in practical use. Therefore, the present invention proposes a two-wheel structure with shock and wear resistance functions, which includes a roller seat and a roller, the roller holder includes a joint portion, a plug portion, a connecting hole and a first insert hole, and the insert portion is formed at one end of the joint portion, and the end portion of the insert portion is formed at the end of the insert portion The first spigot hole, the two ends of the first spigot hole respectively corresponding to the two rollers, and a spigot end through the spigot hole and one of the second spigot hole of the roller, so that the roller can be The insert is axially rotated, and the material of the insert is a heat-treated alloy steel material having a low coefficient of friction and good rotation characteristics; the roller is a plurality of layers of material structure, and an inner layer material is a nylon elastomer; the joint portion can be combined with a mounting body, and a plastic gasket is disposed between the joint portion and the contact surface of the mounting body, and the plastic gasket and the roller seat can be combined by a connecting member To make the wheel The connecting member may be the axis of rotation relative to the mounting body.

As can be seen from the above description, the features of the present invention are as follows:

1. The materials of the roller seat and the plastic gasket are all formed by plastic molding, which effectively reduces the weight of the overall roller structure.

2. Replace the metal ball bearing with a plastic gasket to reduce the parts required for the overall roller structure.

3. The insertion hole and the connection hole are thickened at the time of manufacture or made of a material having wear resistance and shock absorption properties, thereby increasing the life of the overall roller structure.

10‧‧‧ Roller seat

11‧‧‧Tip

12‧‧‧First pin hole

13‧‧‧ 插插

14‧‧‧Connection hole

15‧‧‧Connecting parts

16‧‧‧Combination Department

20‧‧‧Plastic gasket

30‧‧‧Roller

31‧‧‧External layer

32‧‧‧Internal layer

34‧‧‧Second pin hole

50‧‧‧Installing the body

The first figure is a perspective view of a preferred embodiment of the present invention.

The second figure is a cross-sectional view of a preferred embodiment of the present invention.

The third view is a partially enlarged cross-sectional view of a preferred embodiment of the present invention.

The fourth figure is an exploded view of the preferred embodiment of the present invention.

Figure 5 is a perspective view of the assembly of the preferred embodiment of the present invention.

Figure 6 is a schematic view of the actual installation of the preferred embodiment of the present invention.

Please refer to the first and second figures. The preferred embodiment of the two-wheel structure with shock and wear resistance functions includes a roller base 10 and two rollers 30. The roller seat 10 is made of wear-resistant and The plastic material of the shock-absorbing property, and the roller base 10 is integrally molded by plastic injection. The roller base 10 includes a joint portion 16, a insertion portion 11, a connecting hole 14 and a first insertion hole. 12, the joint portion 16 can be coupled with a mounting body 50, and a plastic gasket 20 is disposed between the joint portion 16 and the contact surface of the mounting body 50. The material of the plastic gasket 20 has the functions of shock absorption and buffering. The plastic spacer 20 is disposed between the joint portion 16 and the mounting body 50 to generate a small frictional force when the roller holder 10 and the mounting body 50 are relatively rotated. The mounting body 50 has a first through hole, the plastic spacer 20 has a second through hole, and the connecting portion has a connecting hole 14 . The first through hole, the second through hole and the connecting hole 14 respectively correspond to each other to make the mounting body 50 The plastic spacer 20 and the roller holder 10 can be coupled to each other through a connecting member 15 , and the roller holder 10 rotates relative to the mounting body 50 with the connecting member 15 as an axis. The material of the connecting member 15 can be It is a heat-treated alloy steel material which has a low coefficient of friction and good rotation characteristics.

Referring to the third and fourth figures, the insertion portion 11 is formed at one end of the coupling portion 16. The distal end of the insertion portion 11 has a first insertion hole 12, and the two ends of the first insertion hole 12 correspond to each other. The roller 30 is mounted, and a spigot 13 is inserted through the second spigot hole 34 of the roller 30 and the first spigot hole 12, so that the roller 30 is mounted on the roller holder 10 and the spigot 13 is the axis. Rotate. The first insertion hole 12 can increase the thickness of the plastic when the plastic is injected to reduce the abrasion caused by the rotation of the insertion end 13 in the first insertion hole 12, and the material of the insertion end 13 can be heat treated. Alloy steel material with low friction coefficient and good rotation characteristics.

Referring to FIG. 5 , the roller 30 is a multi-layer material structure including an outer layer 31 , an inner layer 32 , and the second insertion hole 34 . The roller 30 has the inner layer 32 as its structural body and The roller 30 is provided with a mechanical strength to bear the load. The outer layer 31 covers the outer side of the inner layer 32, so that the roller 30 has a good friction when rolling, and the second insertion hole 34 is formed through the roller 30. The material of the outer layer 31 may be polyurethane (PU) or thermoplastic polyurethane (TPU); the inner layer 32 is made of a nylon elastomer, which has a shock-absorbing and wear-resistant plastic material.

Referring to the sixth embodiment, in the preferred embodiment of the present invention, the mounting body 50 is a luggage case, and the roller base 10 is mounted on the bottom of the luggage case to enable the mounting body 50 to slide stably.

As can be seen from the above description, the features of the present invention are as follows:

1. The materials of the roller seat and the plastic gasket are all formed by plastic molding, which effectively reduces the weight of the overall roller structure.

2. Replace the metal ball bearing with a plastic gasket to reduce the overall roller structure. Components.

3. The insertion hole and the connection hole are thickened at the time of manufacture or made of a material having wear resistance and shock absorption properties, thereby increasing the life of the overall roller structure.

30‧‧‧Roller

50‧‧‧Installing the body

Claims (7)

The utility model relates to a double wheel structure with a shock absorber and a wear resistance function, which comprises a roller seat and two rollers. The roller seat comprises a joint portion, a bolt portion, a connecting hole and a first bolt hole, and the bolt portion extends Forming at one end of the joint portion, the first pin hole is formed at an end of the pin portion, and the two ends of the first pin hole respectively correspond to the two rollers and are inserted through the pin hole and the roller a second pin hole, such that the roller can rotate corresponding to the pin, wherein: the roller is a plurality of layers of material structure, an inner layer is a material having an anti-wear effect; the joint portion can correspond to a mounting body In combination, a plastic gasket is disposed between the joint portion and the contact surface of the mounting body, and the plastic gasket and the roller seat can be coupled through a connecting member, so that the roller seat can be the shaft member. The mounting body rotates relative to each other. The two-wheel structure having the shock-absorbing and wear-resisting function described in claim 1, wherein when the roller seat is coupled with the mounting body, a plastic gasket is disposed between the joint portion and the mounting body, and the plastic pad The sheet has the function of shock absorption and cushioning while having good anti-wear properties. The outer layer of one of the rollers is made of polyurethane or thermoplastic polyurethane, as claimed in claim 2, which has a double wheel structure with shock and wear resistance functions. The double-wheel structure having the shock-absorbing and wear-resisting functions described in claim 2, wherein the inner layer material of the roller is a nylon elastomer. The double-wheel structure having the shock-absorbing and wear-resisting functions described in claim 2, the material of the plug may be a heat-treated alloy steel material. The two-wheel structure having the shock-absorbing and wear-resisting functions described in claim 3, 4 or 5, wherein the roller seat is an integrally formed structure, wherein the pin hole of the roller seat has a thickened structure. The double-wheel structure having the shock-absorbing and wear-resisting functions described in claim 6 is a trunk, and the roller seat is installed at the bottom of a trunk.