JP-7856272-B1 - Auxiliary device for tire mounting and detachment equipment
Abstract
[Problem] To provide an auxiliary device for a tire mounting/detaching device that can be easily attached to and detached from the tire mounting/detaching device. [Solution] The auxiliary device 100 for the tire mounting/detaching device is provided on the tire mounting/detaching device 1, which includes a chuck portion 11 for gripping the wheel 8, a rotating shaft 12 to which the chuck portion 11 is connected and which is rotationally driven around a rotation axis L, and a rotational drive portion M for rotating the rotating shaft 12. The auxiliary device 100 for the tire mounting/detaching device includes a cylindrical first arm 101 that is inserted into and fitted onto the rotating shaft 12, a cylindrical second arm 102 that is inserted into and fitted onto the first arm 101, a third arm 103 fixed to the second arm 102, a pad member 104 disposed on the third arm 103, and protruding portions 115 and 116 disposed on the first arm 101 and the second arm 102, with at least a portion of them protruding to the same side as the third arm 103. [Selection Diagram] Figure 1
Inventors
- 牧野 智將
Assignees
- 小野谷機工株式会社
Dates
- Publication Date
- 20260511
- Application Date
- 20250730
Claims (2)
- An auxiliary device for a tire mounting device, provided in a tire mounting device for removing a tire from a wheel or mounting a tire to a wheel, comprising: a chuck portion that fits into the hub hole of a wheel having a rim portion on which the bead portion of a tire sits and a disc portion having a hub portion in which a hub hole is formed, and grips the wheel in a manner that allows the wheel to be attached and detached; a rectangular cylindrical rotating shaft to which the chuck portion is connected and which is driven to rotate around a horizontal axis of rotation; and a rotation drive portion that rotates the rotating shaft around the axis of rotation, wherein the auxiliary device for a tire mounting device is provided in a tire mounting device for removing a tire from a wheel or attaching a tire to a wheel, A cylindrical first arm having one end that is inserted into and fitted onto the aforementioned rotating shaft, A cylindrical second arm having one end that is inserted into and fitted into the other end of the first arm, A third arm having one end fixed perpendicularly to the other end of the second arm, A pad member is provided at the other end of the third arm and protrudes toward one end of the first arm in the axial direction, An auxiliary device for a tire mounting and detaching device, comprising: a projection disposed at one end of the first arm and one end of the second arm, with at least a portion of which protrudes in the direction in which the third arm extends.
- The auxiliary device for a tire mounting/detaching device according to claim 1, wherein the first arm and the second arm are rectangular tubular in shape.
Description
This invention relates to an auxiliary device for a tire mounting/detaching device, which is attached to the tire mounting/detaching device and used when performing tire mounting and detachment operations. The tire mounting/detachment device comprises a chuck portion for detachably gripping a wheel, a rotating shaft to which the chuck portion is connected and which is driven to rotate around its axis, and a drive portion for rotating the rotating shaft around its axis. The auxiliary device for the tire mounting/detachment device comprises a first arm having one end into which the rotating shaft of the tire mounting/detachment device is inserted and fitted, a second arm having one end fixed perpendicularly to the other end of the first arm, a pad member disposed at the other end of the second arm, and a connecting body that detachably connects one end of the first arm to the rotating shaft (see, for example, Patent Document 1). Japanese Patent Publication No. 2023-111657 This is a cross-sectional view showing an auxiliary device 100 for a tire mounting/detaching device according to one embodiment of the present invention, attached to the tire mounting/detaching device 1.This is an exploded perspective view of an auxiliary device 100 for a tire mounting/detaching device according to one embodiment of the present invention.This is a cross-sectional view showing the locked state of the first arm 101 and the second arm 102.This is an enlarged cross-sectional view showing the IVA section in Figure 3.This is an enlarged cross-sectional view showing the IVB section in Figure 3.This is a cross-sectional view showing the state in which the removal of tire 2 has begun.This is a cross-sectional view showing the state in which the opposite side of the pad member 104 is pressed in by the bead roller 19.This is a cross-sectional view showing the state in which the front bead portion 9 has been pushed out from the rim portion 4.This is a cross-sectional view showing the state in which the pressure on the tire 2 by the bead roller 19 has been released.This is a cross-sectional view showing the state in which the installation of tire 2 has begun.This is a cross-sectional view showing the front bead portion 9 mounted on the wheel 8.This is a cross-sectional view showing the connected state of the first arm 101 and the second arm 102. The embodiments of the present invention will be described below with reference to the drawings. In each drawing, identical or substantially identical elements or parts are denoted by the same reference numerals, and redundant descriptions are omitted. Figure 1 is a cross-sectional view showing the auxiliary device 100 for a tire mounting/detaching device according to one embodiment of the present invention attached to the tire mounting/detaching device 1. Figure 2 is an exploded perspective view of the auxiliary device 100 for a tire mounting/detaching device according to one embodiment of the present invention. Figure 3 is a cross-sectional view showing the locked state of the first arm 101 and the second arm 102. Figure 4A is an enlarged cross-sectional view showing the IVA portion of Figure 3. Figure 4B is an enlarged cross-sectional view showing the IVB portion of Figure 3. In Figures 3, 4A, and 4B, the inclination of the first arm 101 and the second arm 102 is emphasized for ease of illustration. The auxiliary device 100 for the tire mounting/detachment device (also simply called the auxiliary device) of this embodiment is used attached to the tire mounting/detachment device 1 (see Figure 1) for detaching the tire 2 from the wheel 8 or mounting the tire 2 onto the wheel 8. The wheel 8 has, for example, a rim diameter of 22.5 inches and a rim width of 14 inches. The tire 2 is an ultra-low-profile tire with an aspect ratio of 55% or less. The tire 2 may be, for example, a tire with a tire width of 445 mm, a tire inner diameter of 22.5 inches, and an aspect ratio of 50% (445/50R22.5), or a tire with a tire width of 455 mm, a tire inner diameter of 22.5 inches, and an aspect ratio of 55% (455/55R22.5). The tire 2 is a pneumatic wheel-mounted tire comprising a carcass having a main body portion extending from the tread portion through the sidewall portion to the bead core of the bead portion, and a folded portion connected to the main body portion and folded back from the inner side to the outer side in the tire axial direction around the bead core. A side reinforcement layer made of carbon fiber reinforced plastic (CFRP) is provided on the outer surface of the sidewall portion. The orientation direction of the CFRP reinforcing fibers is 60 degrees or less with respect to the tire radius. The side reinforcement layer has high tensile elasticity properties with respect to the tire radius direction. Because the ultra-low profile tire has high rigidity in the sidewall portion, the use of the auxiliary device 100 makes it easier to attach and detach the tire to the wheel 8. The wheel 8 comprises a r