JP6319915B2 - Air filling safety device - Google Patents

Description

  The present invention relates to an air filling safety device.

  When air is filled into an automobile tire, a burst (rupture) may occur due to damage to a steel portion inside the tire or damage to a sidewall of the tire. When a tire bursts, the tires are violated by the wind pressure of the explosively injected air, or the metal wheels come off and fly, which poses a great danger to nearby workers. For this reason, conventionally, an air filling operation has been performed in a state where the tire is housed in a safety fence having a pair of left and right side frames that are erected with an interval larger than the width of the tire (see Patent Document 1). .

JP 2013-71490 A

However, when the tire bursts, a blast from high-pressure air blows out from the tire sidewall. The conventional air-filling safety fence could not prevent the blast that blows out from the sidewall as the tire bursts. The shock wave of the blast may damage surrounding articles or scatter fragments, resulting in injury to workers and serious accidents.
Also, because the air-filling safety fence itself is a large three-dimensional structure, it must be fixed to the installation surface with anchor bolts, etc. so that the structure is complex, heavy, and can withstand the impact of burst. There was a drawback that it was troublesome to move and transport.

  Accordingly, an object of the present invention is to provide an air filling safety device that is easy to move and transport, is easy to handle, and can reduce the risk of blast and debris scattering when a tire bursts.

An air filling safety device according to the present invention includes a rectangular flexible cloth body having a short side and a long side, and a plurality of flexible reinforcing belt bodies fixed to the cloth body. The plurality of reinforcing band members include a plurality of longitudinal reinforcing band members along the longitudinal direction of the cloth body, and a plurality of lateral reinforcing band members along a direction orthogonal to the longitudinal direction. Are arranged in a lattice pattern so as to intersect with each other, and both ends of the plurality of longitudinal reinforcing strips are provided with mounting portions protruding from both short sides of the cloth body. Then, one side wall, a tread lower surface portion, and the other side wall of the air-filling tire leaning on the work vehicle in a vertical or inclined shape are formed in a U shape with the cloth body and the vertical reinforcing band body. enveloping the folded shape, the protruded of the mounting portion from the people the two short sides each, close to superposed It is obtained by configured to freely attached removably to the end edge of the upper Symbol bed Te.

Moreover, the said attachment part is formed in the ring shape which turned up the edge part of the said reinforcement belt | band | zone, and was sewn .
Further, in the above-mentioned use state, in the state where the tire is wrapped in a folded shape, there is provided a planar fastener means for detachably connecting the left and right opening side edges.

  According to the air filling safety device of the present invention, the tire can be wrapped easily and quickly with a simple operation, and even if the tire bursts during the air filling, the blast from the sidewall is Can be reduced to a minimum, and the safety of nearby workers can be ensured. Lightweight, can be folded compactly, convenient to carry and can be used anywhere. The structure is simple and the manufacturing cost can be reduced. The operation of wrapping the tire can be performed simply by placing the tire on the windbreak film body in a vertical posture or an inclined posture and making the two sides of the windbreak film body close to each other or overlapping each other to make a double fold. It is convenient and quick in time and easy. In addition, instead of the conventional high-rigidity safety fence, a flexible windbreak film can be used to skillfully receive the blast and ensure safety.

It is the perspective view which showed one Embodiment of this invention, (A) is a perspective view of the state before wrapping a tire, (B) is the perspective view of the state which wrapped the tire. It is the expansion | deployment top view which showed one Embodiment of this invention. It is sectional drawing of the use condition which wrapped the tire. It is sectional drawing which shows a mode when a tire bursts. It is a perspective view explaining the state which attaches the safety device for air filling of this invention to the loading platform of a work vehicle. It is explanatory drawing which illustrated multiple types of metal fittings and an attaching part.

Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments.
As shown in FIG. 5, the air filling safety device of the present invention is used by being attached to one end edge 10 of the loading platform P of the work vehicle V. In FIG. 5, a side edge is shown as one end edge 10 of the loading platform P, but depending on the work vehicle V, it may be a rear end edge.
As shown in FIGS. 1 and 2, the air filling safety device of the present invention includes a rectangular windproof membrane body 1, and each of two opposing sides 1 </ b> A and 1 </ b> B out of four sides of the rectangular shape, A plurality of detachable attachment portions 3 are provided at one end edge 10 of the loading platform P. As shown in FIG. 1A, an air-filling tire T is erected in a vertical or inclined manner on the windbreak film body 1, and then, as shown in FIG. The tire T is wrapped in a folded shape, the two sides 1A and 1B of the windbreak film body 1 are approached or overlapped, and the attachment portion 3 is attached to one end edge 10 of the loading platform P and attached to the work vehicle V.

The windbreak film body 1 includes a flexible and strong rectangular flexible cloth body 11 and a plurality of flexible reinforcing belt bodies 2 fixed to the cloth body 11 by sewing or adhesion. The windbreak film body 1 has a sufficiently large width dimension W and a length dimension L in the longitudinal direction (see FIG. 2) with respect to the diameter of the tire T to be accommodated, and as shown in FIG. The tire T is wrapped and surrounded with a sufficient margin.
The reinforcing band 2 is composed of a strong band-like body that can withstand high tension used for, for example, a lifting string of a suspended load such as a crane, and includes three reinforcing bands 2 (longitudinal direction) ( 21, 22, 23), and four reinforcing bands 2 (24, 25, 26, 27) are provided along the horizontal direction (direction orthogonal to the longitudinal direction), and the vertical and horizontal reinforcing bands 2, 2, 22, 23) are provided. 2 cross | intersect mutually and are arrange | positioned at the grid | lattice form. The reinforcing band 2 includes two pieces (21, 23) in the vertical direction and two pieces (24, 27) in the horizontal direction along the periphery of the cloth body 11, and the remaining one piece (22) in the vertical direction. Is arranged in the horizontal intermediate position in parallel with the other two (21, 23), and the remaining two (25, 26) in the horizontal direction are arranged in the vertical intermediate position in parallel with the other two. It is installed.
The wind-proof membrane body 1 uses, for example, an explosion-proof sheet used at the site of blasting work, and the cloth body 11 itself has sufficient strength, and further, a plurality of reinforcing belt bodies 2 are fixed to the cloth body 11. Thus, the strength is improved to withstand the shock wave of the blast Z accompanying the burst of the tire T. The cloth body 11 and the reinforcing belt body 2 are configured to be flexible and bendable with a small force.
The attachment portions 3 are provided at both ends of the three reinforcing belt bodies 2 (21, 22, 23) in the vertical direction protruding from the edge of the cloth body 11 at the two opposite sides 1A, 1B of the windbreak film body 1. It is formed by the part. Each attachment part 3 is formed in a ring shape, and is configured to be detachable from a metal fitting U provided at one end edge 10 of the loading platform P.

In the state of use (see FIG. 1B and FIG. 3), a sheet fastener means 5 for detachably connecting the side edges 6, 6 on the left and right opening sides of the windbreak film body 1 enclosing the tire T is provided. Prepare. The planar fastener means 5 will be described with reference to FIGS. 1 and 2. The windbreak film body 1 has strip pieces 4, 4 protruding outward in the left and right sides, and the strip pieces 4, 4. Are formed by both ends of two lateral reinforcing bands 2 (25, 26) projecting from the left and right edges of the cloth body 11, and each band piece 4 is a male fastener of a surface fastener at the tip. The male portion 8 of the planar fastener is provided on the windproof membrane body 1 (the outer surface thereof) in a state where the tire is wrapped in the shape of the windproof membrane body 1 folded in two as shown in FIG. It can be locked to the female portion 9 of the surface fastener.
That is, in the embodiment of FIG. 1, the planar fastener means 5 is composed of a band piece portion 4 protruding from the side edge 6 and a male portion 8 and a female portion 9 of the planar fastener. Although not shown in the drawings, the projecting strip 4 is omitted, and the male and female portions 8 and 9 of the planar fastener are attached to the side edges 6 and 6 on the left and right opening sides of the windbreak film body 1. Then, the side edges 6 and 6 can be connected in a stacked manner. Alternatively, in order to connect the projecting strip pieces 4 and 4 from the side edge 6, the male and female portions 8 and 9 of the surface fastener may be attached to the tips of the strip pieces 4 and 4. (Not shown).

The use method (action) of the air filling safety device of the present invention described above will be described.
As shown in FIG. 1 (A), a plurality of attachment portions 3 provided on one side 1A of the windbreak film body 1 are attached to a metal fitting U provided on one end edge 10 of the loading platform P, and the tire T is erected. Then roll it on the windbreak film body 1 and put it on. In the illustrated example, the tire T is leaned against the loading platform P to have an inclined posture, but may be placed in a vertical posture.
Next, as shown in FIG. 1 (B), the two sides 1A and 1B of the double-folded windbreak film body 1 folded back at the ground contact surface portion of the tire T are brought close to each other to overlap each other, thereby sufficiently large windbreak film body. 1 wraps the tire T in a surrounding manner. At this time, as shown in FIG. 3, the double-folded windbreak film body 1 wraps in contact with or close to _one side wall S ₁ of the tire T, the tread lower surface L _0, and the other side wall S _2. .
Openings 15 are formed on the left and right sides of the foldable windproof membrane body 1, and the strip portions 4, 4 are bridged across the openings 15, so that the male part 8 and the female part of the planar fastener 9 is used to lock the windproof film body 1 (the outer surface thereof). Or when the planar fastener means 5 is the other structure mentioned above, the connection method of the side edge 6 is different.

In a use state in which the windproof film body 1 is folded in two and the tire T is wrapped, an air chuck 41 of an air filling machine is applied to the valve 40 of the tire T to perform air filling.
As shown in FIG. 4, when a burst (rupture) B occurs during air filling, a blast Z blows out from the sidewall S ₁ (or sidewall S ₂ ) of the tire T. Windproof film body 1, the wind pressure of the blast Z generated by the burst B, are closer to one side wall S ₁ side together with the (ubiquitous), it bulges outwardly and flexibly deformed, absorbing the shock waves of the burst B To do. At this time, the strip 4 prevents the opening 15 from being expanded by the blast Z.

  A work vehicle V shown in FIG. 5 includes an air filling machine 30 and a tire changing device 31. A mounting bracket U is provided on one end edge 10 of the loading platform P, and the mounting portion 3 is detachably attached to the bracket U. The above-described air filling safety device including the windproof film body 1 that wraps the air is mounted. That is, the work vehicle V can reduce the risk of burst when the tire T is filled with air in the business trip service by the windproof film body 1 and can ensure safety. In addition, the windbreak film body 1 can be folded and stored in a compact manner. Compared with mounting a conventional safety fence on the loading platform P, the windbreak film body 1 is advantageous in that it is space-saving and portable and can be used anywhere. There is. In addition, since the windbreak film body 1 is attached to the one end edge 10 of the loading platform P and the tire T is rolled and placed on the windbreak film body 1, the conveyance (setting) of the tire T is very easy.

  The design of the present invention can be changed, and the metal fitting U and the attachment portion 3 provided on the loading platform P can be freely changed. For example, as shown in FIG. 6 (A), the attachment portion 3 folds the end portion of the reinforcing band 2 and sews it in a ring shape, while the metal fitting U has a ring shape and is elasticized by a resilient member 35. The doorway may be formed so as to be openable and closable by the swinging piece 34 that is urged. Further, as shown in FIG. 6B, a hook 36 may be attached to the mounting portion 3 and the metal fitting U may be formed in a closed ring shape, or a closed ring metal fitting 37 may be attached to the mounting portion 3 to U may be a hook type. Although not shown in the drawings, a hole portion with eyelet fittings is formed on the edges of the two sides 1A and 1B of the windbreak film body 1, and a hook-shaped fitting U provided on the loading platform P is hooked on the hole portion to prevent windbreaking. The film body 1 may be attached.

As described above, in the air filling safety device according to the present invention, the plurality of attachment portions 3 that are detachably attached to the one end edge 10 of the loading platform P of the work vehicle V are respectively connected to the two opposite sides 1A and 1B. to have, at a use state, as a vertical shape or angled to the upright the one sidewall S ₁ and a tread bottom surface L ₀ and Folded shape enveloping the other sidewall S ₂ of the air filling the tire T The two sides 1A and 1B are approached or overlapped, and the mounting portion 3 includes the rectangular windbreak film body 1 attached to one end edge 10 of the loading platform P. Therefore, it is easy and quick with a simple operation. In addition, even if the tire T can be wrapped and the tire T bursts during the air filling, the influence of the blast Z from the sidewall S ₁ on the outside is reduced to the minimum, Can be secured. Lightweight, can be folded compactly, convenient to carry and can be used anywhere. The structure is simple and the manufacturing cost can be reduced. The operation of wrapping the tire is simply performed by placing the tire T on the windbreak film body 1 in a vertical posture or an inclined posture, and making the two sides 1A, 1B of the windbreak film body 1 close to each other or overlapping each other to make a two-fold shape. It is possible to carry out work quickly and easily in a short time. The flexible windbreak film body 1 can flexibly and skillfully reduce the risk of a blast Z (shock wave) due to a burst.

  Further, since the windbreak film body 1 includes the flexible cloth body 11 and the flexible reinforcing band body 2 fixed to the cloth body 11, the strength of the windbreak film body 1 is improved. Thus, it can withstand the shock wave of the blast Z accompanying the burst of the tire T. It is also possible to form the attachment portion 3 by both ends of the reinforcing band 2, and when the tire T bursts, the attachment portion 3 is not torn or detached, and the windbreak film body 1 is securely fixed to the loading platform P. it can.

  Further, in the state of use, there is provided a surface fastener means 5 for detachably connecting the side edges 6 and 6 on the left and right opening sides of the windbreak film body 1 encasing the tire T in a folded shape. Therefore, it is possible to prevent the opening 15 from being excessively expanded by the blast wind Z when the tire T bursts, and to prevent the tire T from jumping out while rolling or debris scattering.

DESCRIPTION OF SYMBOLS 1 Wind-proof film body 1A Side 1B Side 2 Reinforcement belt 3 Attachment part 4 Band piece part 5 Surface fastener means 6 Side edge 8 Male part of surface fastener 9 Female part of surface fastener 10 One end edge 11 Cloth body
21 longitudinal reinforcement band
22 longitudinal reinforcement bands
23 longitudinal reinforcements
24 lateral reinforcement strips
25 lateral reinforcement strips
26 transverse reinforcement
27 lateral reinforcing band V work vehicle P loading platform T tire S ₁ side wall S ₂ side wall L ₀ lower surface of tread

Claims (3)

A rectangular flexible cloth body (11) having a short side and a long side, and a plurality of flexible reinforcement bands (2) fixed to the cloth body (11),
The plurality of reinforcing band bodies (2) are orthogonal to the longitudinal direction of the plurality of longitudinal reinforcing band bodies (21), (22) and (23) along the longitudinal direction of the cloth body (11). A plurality of lateral reinforcing strips (24) (25) (26) (27) along the direction are arranged in a lattice pattern crossing each other,
At both ends of the plurality of longitudinal reinforcing strips (21), (22), and (23), mounting portions (3) are provided as protruding shapes from both short sides of the cloth body (11),
In use, one sidewall (S ₁ ), tread lower surface (L ₀ ), and the other side of the air-filling tire (T) leaning on the work vehicle (V) in a vertical or inclined manner. wall _{(S 2)} the fabric body (11) and the as longitudinal reinforcing frame body (21) (22) 2-fold shape enclosing the U-shape (23), protrude above the people the two short sides each mounting portion (3), an air filling safety device being characterized in that configured to freely attached removably to the end edge (10) of the upper Symbol bed (P) approaching to overlay. The safety device for air filling according to claim 1, wherein the attachment portion (3) is formed in a ring shape in which an end portion of the reinforcing band (2) is folded and sewn . In the state of use, the surface fastener means (5) for detachably connecting the side edges (6) and (6) on the left and right opening sides with the tire (T) wrapped in a folded shape. The safety device for air filling of Claim 1 or 2 provided.

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