Tire mounting apparatus

A tire mounting apparatus includes a rim positioning mechanism, a wheel support mechanism and a mounting frame that are disposed on a base in sequence, and a tire pressing mechanism disposed on the mounting frame. The rim positioning mechanism is configured to position a hub of a rim. The wheel support mechanism is configured to support a side peripheral edge of a wheel. The tire pressing mechanism is configured to press a side peripheral edge of a tire for pressing a bead of the tire into the rim. The operation is simple and labor-saving. The tire mounting efficiency can be improved and the labor intensity can be reduced.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to tire mounting technology, and more particularly to a tire mounting apparatus.

2. Description of the Prior Art

Compared with a hollow tire, a solid tire will not burst even if the surface of the solid tire is punctured by sharp objects, so it is safer for use. But, the solid tire also has defects. In general, solid tires are PU tires, which have small deformation, poor cushioning and shock absorption capabilities, and high cost. The weight of the solid tire is relatively large, which causes the driver to ride more strenuously.

In order to improve the above-mentioned defects of solid tires, an improved tire includes a solid inner tire A disposed between an outer tire B and a rim C to form a wheel having inner and outer tires, referring toFIG.1. The solid inner tire A acts as a buffer interlayer, which improves the shock absorption performance of the wheel and reduces the consumption of the outer tire B. In the prior art, the solid inner tire A and the outer tire B are formed separately, and then assembled and mounted on the rim C. There is no special tool for mounting the tire. After the solid inner tire A and the outer tire B are placed on the rim C, a simple tool is used to press the bead of the outer tire B into the rim along the circumference of the rim C. The tire mounting efficiency is low and the labor intensity is high.

SUMMARY OF THE INVENTION

The primary object of the present invention is to provide a tire mounting apparatus, which is used to assist in the assembly of a wheel having inner and outer tires for improving the tire mounting efficiency and reducing the labor intensity.

A tire mounting apparatus comprises a base, a mounting frame, a rim positioning mechanism, a wheel support mechanism, and a tire pressing mechanism. The rim positioning mechanism, the wheel support mechanism and the mounting frame are disposed on the base in sequence. The tire pressing mechanism is disposed on the mounting frame and located above the wheel support mechanism. The rim positioning mechanism is configured to position a hub of a rim. The wheel support mechanism is configured to support a side peripheral edge of a wheel. The tire pressing mechanism is configured to press a side peripheral edge of a tire for pressing a bead of the tire into the rim.

Preferably, the rim positioning mechanism includes a rim positioning platform located at one end of the base, and an upper end of the rim positioning platform has a positioning hole for insertion the hub of the rim.

Preferably, the rim positioning platform is an adjustable screw rod that is threadedly connected to the base.

Preferably, the rim positioning mechanism further includes a retaining plate, a press rod, a guide rod, and a press head. A first end of the retaining plate is pivotally connected to the end of the base, so that the retaining plate can rotate in a horizontal direction. The rim positioning platform is disposed on the first end of the retaining plate. A lower end of the guide rod is vertically connected to a second end of the retaining plate. When in use, the guide rod is inserted between spokes of the rim. One end of the press rod is sleeved on the guide rod. The press rod is adjustable up and down. The press head is disposed on another end of the press rod for positioning an upper end of the hub of the rim.

Preferably, the wheel support mechanism includes a lower roller for rolling and supporting a side peripheral edge of the rim and a lower roller bracket for installing the lower roller.

Preferably, the base is in the form of a rod and is arranged horizontally. The lower roller bracket is fitted on a middle portion of the base. The lower roller is rotatably connected to the lower roller bracket. A lower end of the mounting bracket is fitted on another end of the base.

Preferably, the tire pressing mechanism includes an upper roller and a push roller. The upper roller is located above one side of the wheel support mechanism close to the mounting frame for rolling and pressing down the side peripheral edge of the tire. An axial direction of the push roller is arranged vertically. The push roller is located above the wheel support mechanism for pushing the bead of the tire out of an outer ring of the rim.

Preferably, a lower end of the push roller has an annular guide flange.

Preferably, the tire pressing mechanism further includes an upper roller bracket. The upper roller bracket is slidably connected to the mounting frame. The upper roller bracket is movable up and down relative to the mounting frame. The upper roller is rotatably connected to one end of the upper roller bracket. The push roller is installed on one side of the upper roller bracket and is movable horizontally.

Preferably, the mounting frame includes a slide rail and a slider. The slide rail is vertically disposed on one side of the mounting frame. The upper roller bracket is slidably connected to the slide rail through the slider.

Preferably, the tire pressing mechanism further includes a first toggle clamp. The first toggle clamp is vertically mounted on the side of the mounting frame and has a movable end connected to the upper roller bracket.

Preferably, the first toggle clamp is mounted on the mounting frame through a connecting plate. The connecting plate is fitted on the mounting frame and is positioned by an adjusting screw rod, and the height of the first toggle clamp is adjustable through a hand wheel.

Preferably, the tire pressing mechanism further includes a restricting block connected to the side of the upper roller bracket, a push roller retaining block slidably connected to the restricting block, a push rod connected to the push roller retaining block, and a second toggle clamp. The second toggle clamp is mounted on the push roller retaining block and has a movable end connected to the restricting block. The push roller is rotatably connected to a lower end of the push rod.

Preferably, an adjusting screw rod is disposed on the restricting block for positioning the movable end of the second toggle clamp, and the position of the second toggle clamp is adjustable through a hand wheel.

Preferably, the tire mounting apparatus further comprises an auxiliary roller and a connecting rod. The auxiliary roller is mounted on the upper roller bracket through the connecting rod. The auxiliary roller and the upper roller are arranged side by side.

Through the above technical solutions, the present invention provides the wheel support mechanism for supporting the wheel and the tire pressing mechanism for pressing down the tire and for the bead of the tire to be engaged into the rim. The wheel can be rotated manually when mounting the tire. During the rotation of the wheel with the rim positioning mechanism as the axis, the entire bead of the tire can be evenly engaged into the groove of the rim to complete the assembly. The invention is simple in operation and labor-saving. With the assistance of the present invention, the tire mounting efficiency can be improved and the labor intensity can be reduced.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

The present invention provides a tire mounting apparatus, comprising a base1, a mounting frame2, a rim positioning mechanism3, a wheel support mechanism4, and a tire pressing mechanism5.

The rim positioning mechanism3, the wheel support mechanism4and the mounting frame2are disposed on the base1in sequence. The tire pressing mechanism5is disposed on the mounting frame2, and is located above the wheel support mechanism4.

The rim positioning mechanism3is configured to position the hub of a rim.

The wheel support mechanism4is configured to support the side peripheral edge of a wheel.

The tire pressing mechanism5is configured to press on the side peripheral edge of a tire for pressing the bead of the tire into the rim.

FIGS.2to6illustrate a preferred embodiment of the present invention are shown.

The rim positioning mechanism3includes a rim positioning platform31located at one end of the base1. The upper end of the rim positioning platform31has a positioning hole311for insertion the hub of the rim. When the tire is to be installed, the lower end of the hub of the rim (the rim is laid flat) is inserted in the positioning hole311. In the process of mounting the tire, the wheel can be rotated manually with the hub of the rim as the axis. In this embodiment, the rim positioning platform31is an adjustable screw rod that is threadedly connected to the base1. By screwing the rim positioning platform31, the height of the upper end of the rim positioning platform31can be adjusted to ensure that the peripheral edge of the rim can be attached to the wheel support mechanism4when the tire is to be mounted on the rim, so that the present invention can be used for rims of different widths (the spacing between the left and right sides of the rim).

The rim positioning mechanism3further includes a retaining plate32, a press rod33, a guide rod34, and a press head35. A first end of the retaining plate32is pivotally connected to one end of the base1, so that the retaining plate32can rotate in the horizontal direction. The rim positioning platform31is disposed on the first end of the retaining plate32. A lower end of the guide rod34is vertically connected to a second end of the retaining plate32. When in use, the guide rod34is inserted between the spokes of the rim. One end of the press rod33is sleeved on the guide rod34. The press rod33can be adjusted up and down. The press head35is disposed on the other end of the press rod33for positioning the upper end of the hub of the rim.

The wheel support mechanism4includes a lower roller41for rolling and supporting the side peripheral edge of the rim and a lower roller bracket42for installing the lower roller41. The base1is in the form of a rod and is arranged horizontally. The lower roller bracket42is fitted on a middle portion of the base1, and locked by a clamping knob6. The lower roller41is rotatably connected to the lower roller bracket42. A lower end of the mounting bracket2is fitted on the other end of the base1, and is locked by a clamping knob6. The positions of the lower roller bracket42and the mounting frame2on the base1are adjustable, that is, the positions can be adjusted according to the outer diameters of different wheels, so that the present invention can be used for wheels with different outer diameters.

The tire pressing mechanism5includes an upper roller51and a push roller52. The upper roller51is located above one side of the wheel support mechanism4close to the mounting frame2for rolling and pressing down the side peripheral edge of the tire. The axial direction of the push roller52is arranged vertically. The push roller52is located above the wheel support mechanism4for pushing the bead of the tire out of the outer ring of the rim. In this embodiment, the rotating shafts of the lower roller41and the upper roller51are directed to the rim positioning platform31, so as to ensure the synchronization of the rotation of the two rollers, thereby ensuring that the rim and the tire can rotate smoothly when the tire is to be mounted on the rim. A lower end of the push roller52has an annular guide flange521for pushing up the bead of the tire fitted on the rim to be out of the outer ring of the rim when the tire is mounted.

The tire pressing mechanism5further includes an upper roller bracket53. The upper roller bracket53is slidably connected to the mounting frame2. The upper roller bracket53can be moved up and down relative to the mounting frame2. The upper roller51is rotatably connected to the end of the upper roller bracket53. The push roller52is installed on the side of the upper roller bracket53and can move horizontally. The upper roller bracket53can be lifted and lowered on the mounting frame2, so that the height of the upper roller51and the push roller52can be adjusted, which facilitates the rim and the tire to be placed on the tire mounting apparatus for mounting the tire on the rim. In this embodiment, the mounting frame2includes a slide rail7and a slider8. The slide rail7is vertically disposed on the side of the mounting frame2. The upper roller bracket53is slidably connected to the slide rail7through the slider8to realize its lifting function.

The tire pressing mechanism5further includes a first toggle clamp54(also called a quick-release clamp, Model No. CH-305HM). The first toggle clamp54is vertically mounted on the side of the mounting frame2, and has a movable end connected to the upper roller bracket53. By operating the first toggle clamp54, the upper roller bracket53can be moved up and down and restricted. In this embodiment, the first toggle clamp54is mounted on the mounting frame2through a connecting plate55. The connecting plate55is fitted on the mounting frame2and is positioned by an adjusting screw rod9, and the height of the first toggle clamp54is adjusted by a hand wheel10. By adjusting the height of the first toggle clamp54, the lowest stroke of the movable end of the first toggle clamp54can be changed, that is, the lowest height value of the upper roller51, so that the present invention can be used for tires of different widths.

The tire pressing mechanism5further includes a restricting block56connected to the side of the upper roller bracket53, a push roller retaining block57slidably connected to the restricting block56, a push rod58connected to the push roller retaining block57, and a second toggle clamp59(Model No. CH-36204). The second toggle clamp59is mounted on the push roller retaining block57, and has a movable end connected to the restricting block56. The push roller52is rotatably connected to a lower end of the push rod58. The second toggle clamp59can drive the push roller retaining block57to move horizontally relative to the restricting block56, thereby driving the push roller52to move horizontally. In this embodiment, the push roller retaining block57has a slide groove571. The restricting block56is slidably fitted with the slide groove571. An adjusting screw rod9is disposed on the restricting block56for positioning the movable end of the second toggle clamp59, and the position of the second toggle clamp59is adjusted by a hand wheel10, so that the horizontal stroke of the push roller52can be changed. The present invention can be used for tires of different thicknesses (referring to the difference between the outer diameter and the inner diameter of a tire).

The present invention further includes an auxiliary roller20and a connecting rod30. The auxiliary roller20is mounted on the upper roller bracket53through the connecting rod30. The auxiliary roller20and the upper roller51are arranged side by side. The auxiliary roller20is configured to increase the area pressing the tire and improve the efficiency and quality of mounting the tire.

The present invention further includes a support frame40mounted under the base1for adjusting the height of the base1. The support frame40includes a fixed rod401and a telescopic rod402. The telescopic rod402is inserted in the fixed rod401, and is telescopic relative to the fixed rod401, thereby adjusting the height of the base1.

Referring toFIG.7andFIG.8, the working principle of the present invention is described below. When the tire is to be mounted, the hub of the rim C is first inserted on the rim positioning platform31. Then, the outer tire B (PU tire) is put on the periphery of the rim C, and the solid inner tire A (ETPU tire) is inserted between the rim C and the outer tire B. One side of the tire (the solid inner tube A and the outer tire B) is pressed down by hand, and part of the tire is out of the outer ring of the rim C. Then, the part of the tire is turned to be under the upper roller51. The first toggle clamp54is operated to put down the upper roller bracket53, so that the upper roller51presses the tire. The second toggle clamp59is operated to move the push roller52horizontally to the bead of the tire. When the wheel is rotated horizontally by hand, the guide flange521of the push roller52will push up the part (bead) covering the upper surface of the rim C to be out of the outer ring of the rim C. Due to the restriction of the upper roller51, the bead is engaged into the groove of the rim C. After the wheel is rotated a circle, the assembly of one side of the tire is completed. Then, the wheel is retracted and overturned, and the above operation is repeated.

Through the above solution, the present invention provides the wheel support mechanism4for supporting the wheel and the tire pressing mechanism5for pressing down the tire and for the bead of the tire to be engaged into the rim C. The wheel can be rotated manually when mounting the tire. During the rotation of the wheel with the rim positioning mechanism3as the axis, the entire bead of the tire can be evenly engaged into the groove of the rim C to complete the assembly. The invention is simple in operation and labor-saving. With the assistance of the present invention, the tire mounting efficiency can be improved and the labor intensity can be reduced.