JPS58149808A - Tire exchanger - Google Patents

Abstract

PURPOSE:To obtain a small-sized tire exchanger simplified in handling for a truck and the like by adopting a construction to hold a tire upright and push the base part of the tire axially as rotating the tire wheel. CONSTITUTION:A tire T is positioned upright on a floating roller 26 and moved to the side of a frame 1, and a mounter 11 is positioned at the center of a tire wheel W by an elevating table 10 for fastening both of them. Then, a rotating arm 37 is positioned at the position of the tire T. Meanwhile, as rotating a drive device 12, a tire-pushing mechanism 4 is operated, and the elevating table 10 is adjusted. A front attachment roller 30 is pushed to a tire base part Ta, which is separated from a bead 50. Similarly, a rear attachment roller 31 is pushed, and the tire T is released from the wheel W. For mounting the tire, this process is reversed. This construction permits to obtain a small-sized tire exchanger simplified in handling and fitting to be installed in a service station or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tire changing machine for detaching from or attaching to an automatic military vehicle a tire tube tire wheel of a truck or the like.

Recently, the above-mentioned tires have been diversified, and tubeless tires have been used in addition to conventional tube tires, and aluminum wheels, magnesium wheels, etc. have been used in addition to steel wheels as tire wheels. Therefore, with the diversification of these tires and tire wheels, it takes a considerable amount of time and effort to replace the tires, and there is a risk of damage to aluminum wheels and the like. In addition, with the conventional method of inserting iron pieces, the tire heats up during running, causing the tire to get stuck on the contact surface with the wheel, resulting in seizing and failure, and it is extremely difficult to separate the tire.

For this reason, tire changing machines have recently been developed to mechanize the installation and removal of tires, but they are large and can be installed in limited locations, are complicated to operate, require a high level of skill, and are expensive.
There are problems when installing it on gun-rin stands, etc.

The present invention has been made in view of these points, and aims to make it small, easy to handle, and easy to install at L1 gas stations.

The present invention will be described in detail below based on embodiments shown in the drawings.

As shown in the figure, the tire changing machine includes a frame l, a tire holding mechanism for supporting the tire wheel vl in an upright state, a drive mechanism 8 for the tire wheel kH provided on the frame 1, and a side tube tire wheel k for the tire 〒.
It is composed of a tire pressing mechanism 4 that presses in the y-axis direction and a t main body.

The above seven frames l consist of a machine base h, a plurality of columns 6 (four columns in the figure) established on the base 5 at intervals in the front, rear, left and right directions, and an upper part attached above the columns. It is mainly composed of a fixed base γ and a motor mounting base 8 located below the fixed base γ.

The tire wheel drive mechanism s is provided with an elevating platform io guided by the column 6 of the frame 1, a mounter Il' provided on the elevating platform l and to which the tire wheel W' is to be fastened at one end, and the other end. is connected to the drive device 12.
It mainly consists of a moving shaft 13 and an elevating means 14 for elevating and lowering the elevating table IO tube, and is supported horizontally on the elevating table 10 by bearings 1M and 16 before and after the driving shaft 1sFi, and one bearing is attached to the driving shaft 11. Thrust collar 17.18 fore and aft for 16
is provided. The elevating means 14 consists of an elevating screw shaft 2 installed on the machine base 6 and standing upright via a good thrust bearing 19, and an elevating deceleration motor 21 mounted on the motor mount 8. The lifting platform 10 is equipped with a seat 22 that is screwed onto the screw shaft 10, and the screw St. is a universal joint! Deceleration motor 21 for lifting via sK-
is connected to.

The tire holding mechanism 2 is provided on one side of the machine base 6,
An inclined plate-shaped step for introducing tires with L rollers! Todoroki, a pair of four-tension rollers 6 arranged at a distance to support the tire TQ guided by the step 2b, and a support shaft that supports each roller 26f and the entire roller 26f. Both rollers gs/Ii are formed as a main body, each having a drum-like depression in the center, and is formed to stably support the tire T, and the support shaft 27 is parallel to the drive shaft 11
L, and its length is longer than the 70-ten roller 26, so that the roller 26 can be moved along the support shaft 27 to the opposite side of the 7 frame 1, and as described later, it is not obstructed by the tire Ttl-mounter 11. The structure is such that it is convenient to move the floating roller 26 to the opposite side of the frame 1, place the tire T on the roller 26, and then move it to the frame 1.

In addition, the tire plate placed on the two-metal float roller '1.6.26 should be aligned with the center position of the mounter 11 so that both ends are aligned. 6. The support shaft that supports each 70-tengo o-926, 116 so that the mounter 11 is located on the perpendicular bisector between 26! ? , and ff are not shown in the drawings, but are positioned in an adjustable manner.

A tire suppression mechanism 4ri, a front attachment roller 8o1, a rear attachment roller 81, and each attachment roller 80 are provided at the front and rear of the tire T'ft.
．． Arm mechanism 81 that supports 81 meetings! and the arm mechanism 8
Attachment rollers 80, 81' (
The main body is a transition means 88 for moving the tire on the i-tire holding mechanism 2 in a fine direction, and the transition means 3
8 mainly consists of an air cylinder 84 mounted on the upper fixed base T of the frame 1, and is located above the drive shaft 13.
L, and is attached parallel to this.

The front attachment roller BG and the rear attachment roller 81 have a truncated cone shape with a larger diameter at the bottom so as to pressurize the tire T at the mounting base Tal of the tire wheel W, and the arm machine'#482II'i said transfer means 3[
An arm main body 86 having a substantially inverted shape that hangs down and supports a rear attachment roller 81 attached to the frame 1 side, and the other front attachment roller 81 are opposed to the rear attachment roller 81 with a tire length in between. A rotating arm 37 is installed and supported in a hanging manner, and is rotatably pivoted at the tip of the horizontal portion S@ of the arm body sb, and a rotating angle regulating device that regulates the entire rotating angle of the rotating arm 37. ! 40
and is constituted as an association subject.

The rotation angle regulating mechanism 40 has one end pivotally attached to a ratchet 41 attached coaxially to the pivot portion of the rotation arm 87 and a bracket 42 attached to the horizontal portion s6 of the arm body 8B. 4s of claws that fit together,
The stopper 44 is attached to the bracket 42 and regulates the rotation angle f' of the rotation arm 87.

Next, the operation procedure will be explained using a truck tire as an example.

First, the rotation angle dy'6 of the tire pressing mechanism 4 is rotated in the lateral direction so as not to hinder the loading of the tire T.
27 along the supporting shafts 27 and 27 in the opposite direction.

Next, step on the tire T! 6, the pair of floating rollers t a -241 are oriented in an upright position, and transferred to the frame l@ together with the floating rollers 26 and 2G. At the same time, the lifting platform 10f is raised and lowered, and the mount ll provided at the tip of the drive shaft I11
is positioned at the center of the tire wheel W, and the two are connected with bolts and nuts. Then, the rotation arm 871r returns to the original position that was rotated in the lateral direction, and the tire T is rotated by the drive device 12, and the tire pressing mechanism 4 is activated.
In addition, the lifting platform 10 is adjusted up and down, and the front attachment roller attached to the rotating arm 87 is pressed against the base Ta of the soy tire T, thereby slightly deforming the base Tai of the tire T, thereby separating the adhesion from the bead 50 and By forming a gap, the bead IsO? It can be extracted.

After removing the bead 15oy, push the arm mechanism 32 in the opposite direction, that is, outward with respect to the frame 1.
The tire τ can be easily removed from the tire wheel W by pressing it against the base of the tire and pushing it further outward.

Next, when installing the tires, use the Tire Wheel Will
Fixed to the mounter 11 with bolts and nuts L1 floating roller 116.28 #'i Move to the opposite side of the frame l in the same manner as above, 1 put the tire Tt7 on the roller, and the tire T is attached to the front and rear attachment rollers. 11
0.81, and raise and lower the lifting platform 10 to position the tire wheel W, the tire T, and t substantially concentrically,
The drive device 12 rotates the tire wheel w2 and pushes it against the tire TV tire wheel W. Furthermore, by the operation of the tire suppression mechanism 4, the attachment roller 30 engages the tire T with the tire pole WK, and then the bead 5ot.
- Install and finish.

As described above, according to the present invention, since the tire is attached to and removed from the tire wheel in an upright state, and the tire suppression mechanism is provided above the drive shaft, the installation area is small, and the tire can be rotated. \It's a tire pressing machine because the attachment roller is attached and detached by pressing it against the tire! It has the advantage of requiring only a small amount of power, and since it can be operated from the side of an upright tire, the bead can be removed easily and safely.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is an overall front view, Fig. 2 is a view along arrows X-X* in Fig. 1,
Figure 3 is an arrow view along Y-Yli in Figure 1, and
1 is a front view of the rotation angle regulating mechanism taken along line 2-2 in FIG. 1; FIG. Mu01. Tire changing machine 100. Frame 214. Tire holding mechanism 800. Drive mechanism 460. Tire suppression mechanism 101 machine base 691. Column to, , + Lifting platform 11 + + + Mounter 1m, -, 116 Moving axis 14, , Lifting means! 6, , Floaten crawler-go, st6. Attachment roller patent applicant
1 person outside Nippon Spindle Manufacturing Co., Ltd.

Claims (1)

[Claims] Tire tI [consists of a tire holding mechanism that supports the tire in an upright position, a drive shaft with a mounter fastened to the tire wheel at its tip, and a tire suppression mechanism that presses the tire against the tire wheel kK in the axial direction of the wheel, The drive shaft is rotatably and horizontally supported on a lifting platform that is raised and lowered along a rack established in the frame, and the tire press machine 11t
t Disposed above the drive shaft, the drive shaft rotates the tire wheel tube. The tire holding base is pressed in the direction of the tire wheel axis by the tire presser IsK (Related operations 1 - Features of the tire) switch.