JP3113240U - Safety cover when filling tire air - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a substantially rectangular parallelepiped safety cover in which a tire can be stood up in order to fill with air.
A mesh plate 6 or a lattice plate is used so that at least one of side surfaces 2, 2, back surface 5, or front surface 1 can be seen inside, and shutter door 15 for opening / closing opening 16 is opened on front surface 1. The bottom plate 14 is provided with a tire carriage 22 that is moved by a tire taking-in / out cylinder 23, an inclined plate 24 is attached to the front side of the tire carriage 22, and an automatic air filling device 26 is provided.
[Selection] Figure 2

Description

  The present invention relates to a safety bar when a tire is filled with air, which cannot withstand the air pressure with which the tire is filled and bursts.

  The work of filling the tire with air is performed at a gas station, a car maintenance shop, etc., and the tire is filled with air until a predetermined air pressure is reached from the air valve. Although the air filling work itself is not so troublesome, there is a case where the air pressure is filled more than a predetermined air pressure due to a work mistake, and the tire that can no longer withstand the air pressure at this time bursts, causing danger to the worker. Sometimes.

  Even when air is not filled more than necessary, the tire may burst. For example, in the case of steel tires that are frequently used in recent years, if the air pressure is lowered and the vehicle runs for a long time, the steel embedded inside will break, and the tire cannot withstand normal air pressure. Will be ruptured.

  However, the most dangerous case is a large tire using a tube, and since the large tire is not easily attached to and detached from the wheel rim, it constitutes a split rim. Of course, there are various types of split rims, but basically a rim base, an end flange, and a lock ring, and the end flange is attached to the rim base via the lock ring.

  The lock ring is fitted in a groove formed on the side edge of the rim base and fixed so that the end flange is not detached. However, if the lock ring is not sufficiently fitted, the end flange suddenly comes off. . If it is a tire mounted on a car, the lock ring fits in the groove, but the lock ring just replaced the tire may not be completely fitted, so the air pressure is The lock ring suddenly disengages at a certain height.

  And the impact force at this time is very large, and the separation energy of the lock ring and the end flange can break through the roof as well as the ceiling, and if it hits the worker, it will die. Accordingly, the applicant has filed a utility model registration application regarding "safety cover when tires are filled with air" on September 21, 1991 (Japanese Utility Model Laid-Open No. 5-26510).

The safety cover when filling the tire with air is: `` A grid plate composed of vertical and horizontal rails is provided on the front and back, and a storage space for storing the tires upright is formed between them. The bottom plate is provided with a shooter that is inclined toward the opening side, and a support base that supports the roller is supported so as to be inclined, and the support base is provided outside the lattice plate. The arm for engaging and lifting the tip of the arm is pivotably attached. "
However, the “safety cover when filling the tire with air” according to the above-mentioned Japanese Utility Model Laid-Open No. 5-26510 has an opening for taking in and out the tire, and the opening is always open. Accordingly, when the tire is ruptured, the tire fragments, the lock ring, and the end flange are scattered from the opening, and a complete safety cover is not obtained.
"Safety cover when filling tire air" according to Japanese Utility Model Application Laid-Open No. 5-26510

  Thus, the conventional safety cover has the above problems. The problems to be solved by the present invention are these problems.When the air is filled, the opening (in / out port) is automatically closed, and even if the tire bursts, the fragments do not scatter outside. Provide safety cover.

  The safety cover at the time of air filling of the tire according to the present invention is a kind of bag capable of rolling and storing a tire, and a mesh plate or a lattice plate is used so that at least one surface can be seen inside. Then, one side surface forms an opening serving as an entrance / exit, and a shutter door is slidably attached to the entrance / exit. An air cylinder is generally used as the shutter door opening / closing means, and the shutter door is controlled to automatically close before the air filling of the tire is started.

  A tire cart is disposed at the open / close opening, and the tire cart can move in conjunction with the air cylinder. An inclined plate is attached to the tire carriage so that it can be easily entered, and the tire is placed on the tire carriage from the inclined plate. In this state, the tire carriage moves and is stored safely in a bar. The safety cover is provided with an automatic air filling device, and the tire is filled with a predetermined air pressure from the automatic air filling device.

  The safety cover according to the present invention can store tires, and the shutter door automatically closes when air filling is started when the tires are stored. That is, safety is ensured because the air filling device is controlled so as not to operate when the shutter door is not closed. Further, the safety cover is provided with a tire carriage on which a tire is placed with the shutter door open, and when the air filling device is operated by placing the tire on the tire carriage, the shutter is simultaneously retracted into the tire carriage. The door is controlled to be closed. When the air filling is finished, the shutter door automatically opens and the tire placed on the tire carriage is pushed out. In other words, by simply putting a tire on the tire carriage and pressing the start button of the air filling device, automatic operation is performed safely thereafter.

  Hereinafter, embodiments of a safety cover for air filling of a tire according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows an embodiment of the safety cover according to the present invention, which forms a bag having a space large enough to accommodate a large tire. The safety bar is a vertically long and narrow rectangular parallelepiped having a front surface 1, two side surfaces 2, 2, a top surface 3, a bottom surface 4 and a back surface 5. The safety cover shown in FIG. Plates 6 and 6 are used to see the inside.

  The safety cover is a frame framed by the vertical rails 7, 7..., The upper rails 8 and 8, the lower rails 9 and 9, the horizontal rails 10 and 10, and the middle rails 11 and 11. The mesh plates 6 and 6 have a top plate 12 on the top surface 3, a back plate 13 on the back surface 5, a bottom plate 14 on the bottom surface 4, and a shutter door 15 attached to the front surface so as to be openable and closable. The mesh plate 6 is also used so that the inside of the shutter door 15 can be seen.

  FIG. 2 is a front view showing a safety cover according to the present invention. The shutter door 15 is attached to the entrance / exit provided on the front, and the shutter door 15 can slide to open / close the entrance / exit 16. A guide shaft 17 is provided in the upper front part in parallel with the horizontal rail 10, and a guide rail 18 is attached to the front side of the bottom plate 14, and the shutter door 15 is guided by the guide shaft 17 and the guide rail 18 and slides. Then, the entrance / exit 16 is opened and closed.

  A shutter opening / closing cylinder 19 is used as an opening / closing means for the shutter door 15, and the shutter opening / closing cylinder 19 is attached in parallel with the guide shaft 17. Therefore, the shutter door 15 opens when the piston rod 20 of the shutter opening / closing cylinder 19 extends, and conversely, the shutter door 15 can close when the piston rod 20 contracts.

  Although the tire 21 is put in the safety bar constructed as described above and the air is filled, the bottom plate 14 of the safety cover is provided with a tire carriage 22. FIG. 3 is a cross-sectional view taken along the line AA in FIG. 1 and shows the inside of the safety cover. As shown in the figure, a tire carriage 22 is provided at the safety cover insertion / removal port 16, and a tire 21 is placed on the tire carriage 22 and stored inside the safety cover.

  A tire take-in / out cylinder 23 is connected to the tire bogie 22, and the tire bogie 22 can be moved by the expansion / contraction movement of the piston rod 20 of the tire take-in / out cylinder 23. A part of the inclined plate 24 attached to the tire carriage 22 shown in FIG. 3 protrudes from the front entrance 16 of the safety cover. The tire 21 is rolled and mounted on the tire carriage 22 from the inclined plate 24, and the piston rod 20 of the tire take-in / out cylinder 23 contracts and is retracted and stored therein.

  The mounting surface 25 of the tire carriage 22 is inclined to one side so that the stored tire 21 is stabilized without shaking. Accordingly, the tire 21 leans against the mesh plate 6 on the side surface 2 without standing up vertically. An automatic air filling device 26 is attached to the side surface 2 of the safety cover, and the tire 21 is filled with air from the automatic air filling device 26.

By the way, the process of filling the tire 21 with air using the safety cover of the present invention will be described below.
(1) The shutter door 15 of the safety cover is in an open state, and the inclined plate 24 of the tire carriage 22 protrudes from the loading / unloading port 16.
(2) Roll the tire 21 and place it on the tire carriage 22 from the inclined plate 24. FIG. 3 shows this state.
(3) The air chuck of the tire 21 is bitten and the start button of the automatic air filling device is turned on.
(4) The piston rod 20 of the tire taking-in / out cylinder 23 contracts and the tire carriage 22 moves backward, and the tire 21 is stored inside the safety cover.
(5) The shutter door 15 on the front 1 slides to close the inlet / outlet port 16, and the automatic air filling device 26 operates in this state to fill the tire 21 with air.
(6) Since the air pressure filled by the tire 21 is fixed, the air is automatically filled until this air pressure is reached.
(7) When the air filling is completed, the shutter door 15 opens and the tire carriage 22 partially protrudes from the loading / unloading port 16, and a part of the tire 21 also protrudes from the loading / unloading port 16 as shown in FIG. 3.
(8) The operator rolls off the protruding tire 21 from the tire carriage 22.

  In this way, the safety cover of the present invention places the tire 21 on the tire carriage 22 and turns on the start button of the automatic air filling device 26, so that each subsequent stroke is fully automatic operation and a predetermined air pressure is achieved. It is made of tires filled in and taken out from the entrance.

It is an Example which shows the safety cover which concerns on this invention, Comprising: A top view and a side view. The front view of the safety cover, when the shutter door is opened and closed. AA sectional drawing of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front 2 Side 3 Upper surface 4 Bottom 5 Back 6 Mesh board 7 Vertical beam 8 Upper beam 9 Lower beam
10 side pier
11 Middle pier
12 Upper plate
13 Backboard
14 Bottom plate
15 Shutter door
16 Entrance / exit
17 Guide shaft
18 Guide rail
19 Shutter opening / closing cylinder
20 Piston rod
21 tires
22 tire trolley
23 Tire cylinder
24 Inclined plate
25 Placement surface
26 Automatic air filling device

Claims (3)

In a substantially rectangular parallelepiped safety cover that can be stored with the tire upright to fill with air, a mesh plate or a lattice plate is used so that at least one of the side surface, the back surface, or the front surface can be seen, and the front surface Is equipped with a shutter door for opening and closing the entrance and exit, and the bottom plate is equipped with a tire carriage that is moved by a tire entry and exit cylinder, an inclined plate is attached to the front side of the tire carriage, and an automatic air filling device is installed. A safety cover when filling tire air, characterized by having. The safety cover at the time of the air filling of the tire of Claim 1 arrange | positioned so that the inclination board of a tire trolley may protrude from the entrance / exit port when the said shutter door is open. When the start button of the automatic air filling device is turned on, the tire carriage with the tires retracts and the shutter door closes. In this state, air filling starts, and when the air pressure reaches a certain value, air filling is started. The safety cover at the time of air filling of the tire according to claim 1 or 2, further comprising control means for moving the tire carriage so that the shutter door is opened and a part of the tire carriage is moved out and out of the inlet / outlet.

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