JPH03267082A - Shock absorber - Google Patents

Abstract

PURPOSE:To enable a shock absorber to be simply detached attached if necessary by pouring air in a specified rate to the total volume of a shock absorbing section into the shock absorbing section having a communicating path formed between adjacent air chambers. CONSTITUTION:Air amounting to 60-90% of total volume of a shock absorbing section 1a is poured into the shock absorbing section 1a having a communicating path 3a formed between adjacent air chambers 3. A partition wall 2 is provided between the air chambers 3 to form the longitudinally long air chamber 3 under the state of installation. Also, under the state of installation, a weight section 1d is provided in the lower portion to be filled with water. An ear section 1b is provided around the weight section and connecting members 5a, 5b are provided on both side ends of the ear section 1b, so that the shock absorber can simply be detached attached if necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a shock absorber, and more particularly to a shock absorber for preventing collisions with fences in athletic fields.

[Conventional technology]

Fences at sports stadiums are made of rigid bodies such as concrete, wooden or iron plates, or wire mesh stretched over steel frames, and during competitions, athletes often collide with the fences and get injured.

Therefore, various protective fences have been proposed to prevent injuries caused by athletes colliding with fences during exercise.

For example, in addition to a protective fence that requires a protective material to be attached to the entire wall surface, the applicant of the present application glues a covering to the surface of the foam and forms it so that an ear slightly protrudes from one edge in the front view. A tape having a loop layer is sewn to the back side of the ear, and a tape having a planer shavings is sewn to the other edge correspondingly, and the top and bottom of the covering of the surface of the foam is extended to form a flap. We proposed a protection unit (publication of Utility Model Publication No. 64-4376) in which the flap is provided with eyelets for retrieval.

This protective unit is installed by fixing the unit to the fence on-site and placing the left and right units in close contact.Compared to the conventional method of attaching protective material to the entire wall surface, it is easier to install, and , are partially interchangeable.

[Problem to be solved by the invention]

By the way, when protective materials are not always required on walls but are sometimes necessary, for example at stadiums where protective materials are required for professional baseball games, protective materials can be easily installed as needed. It is desirable that the device be attached to the device and be easily removed after the game is over.

However, considering these points, all conventional devices require time and effort to attach and remove, and cannot be easily attached and detached.

Therefore, there has been a demand for a shock absorber for preventing collisions that can be easily attached and detached as needed.

[Means to solve the problem]

Means for solving the above problems of the present invention are as follows.

First, the shock absorbing section, in which a communication path is formed between adjacent air chambers, has a capacity of 60 to 9
It is a shock absorber injected with 0% air.

Secondly, in the first shock absorber, a partition wall is provided between the air chambers.

Thirdly, the first or second shock absorber has a vertically elongated air chamber formed in the installed state.

Fourthly, any one of the first to third shock absorbers is provided with a heavy portion at the lower part thereof in the installed state.

Fifth, the fourth shock absorber is made into a heavy part by injecting water.

Sixthly, the impact M described in any one of items 1 to 5? If
The tool is provided with ears around the periphery, and connecting members are provided at both ends of the ears.

Seventhly, another sheet-like material is attached to the surface of the shock absorber according to any one of the first to sixth items in the installed state.

[Effect]

When a player collides with the shock absorber, the air in the air chamber where the impact was applied due to the impact force moves to another air chamber via the communication path, and the impact force is buffered.

Further, in the case where a partition wall is provided between the air chambers, the unevenness of the surface is reduced, and the impact cushioning device has less influence on the direction in which an object (for example, a pole, etc.) that collides with it bounces back.

Further, in the case of a shock absorber in which the air chamber is provided vertically in the installed state, even if the wall surface is curved in the horizontal direction, the shape can be accommodated.

Also, by attaching a heavy part to the bottom, the shock absorber will not be blown away by the wind.

Furthermore, when using water for the heavy part, the weight can be adjusted by adjusting the amount of water injected.

In addition, in the case where connecting members are provided at both ends of the peripheral ear portion, connection with adjacent shock absorbers is performed by combining the connecting members.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the shock absorbing device of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of an embodiment of the shock absorber of the present invention, FIG. 2 is an end view of the section cut along the line A-A in FIG. 1, and FIG. 3 is an end view of the section cut along the line B-B in FIG. 1. An end view is shown.

In the shock absorbing device of this embodiment, an elongated plate-shaped partition wall 2 is arranged in the contraction direction between two sheet-like materials 11, and the contact portions between both ends of the partition Ii and the inner surface of the sheet-like material 1 are , sheet-like material 1,
The shock absorbing part 1 is bonded to the surrounding part of the 1 part and air is injected into it.
a is formed, and an ear portion 1b is provided around the impact buffer portion 1a.

In addition, a sheet-like material 1. located below the impact buffer portion 1a.
1 is also bonded with some width in the lateral direction, and water is injected into the bag-shaped sealed portion between the bonded portion 1c and the ear portion 1b to form a heavy portion 1d.

The material of the sheet material 1 is vinyl, ester cloth,
It may be made of polyethylene or the like, as long as it can be sealed without allowing air to pass through.

A vertically elongated air chamber 3 is provided in the shock absorbing portion 1a into which air is injected.
A plurality of air chambers 3 are formed, and communicating paths 3a are formed above and below the vertical air chambers 3 for air movement to the adjacent air chambers 3.

Note that the amount of air injected into the impact buffer section]a is 60 to 90%, preferably about 70%, of the total capacity of the impact buffer section 1a.

If the capacity exceeds 90%, it will not be able to sufficiently buffer the impact force as it will repel it, and if the capacity exceeds 60%.
If it is less than %, it becomes impossible to effectively buffer the impact force.

An eyelet 4 is provided on the upper end side of the ear portion 1b for attachment to a wall surface or the like.

Moreover, a sheet fastener is attached to both ends of the ear portion 1b as a connecting member, and in this case, a sheet fastener 5a is attached to one end.
However, on the opposite side of the other end, there is a sheet fastener 5b that engages with this.
are installed respectively.

In the figure, 6 is the air inlet to the impact M surgical section 1a, and 7 is the heavy section 1
d is the water inlet.

Next, an example in which the above-mentioned shock absorber is used by being attached to the wall of a baseball stadium will be described.

First, the shock absorber is hung on the wall by hooking a hook or the like on the eyelet 4 of the shock absorber and hooking the other end of the hook on the wall.

At this time, the impact buffers adjacent to each other have one ear portion 1b.
By combining the sheet fastener 5a of 1 and the sheet fastener 5b of the other ear portion 1b, the shock absorber is attached to the wall without any gaps.

Then, air is injected from the air inlet 6 using a compressor to inflate the shock absorbing portion 1a of each shock absorbing device.

At this time, the volume of the injected air is approximately 70% of the total capacity of the shock absorbing portion 1a.

When air is injected, a vertically elongated air chamber 3 is formed, but even when installed on a curved wall, the sheet-like material 1 and the partition wall 2
Since the contact portion with the wall is curved, it can accommodate the curved shape of the wall.

Then, when water is injected from the water injection lower, the weight of the water itself forms a heavy portion 1d of each shock absorber.

At this time, the amount of water to be injected is the total capacity of the heavy portion 1d, but the amount of water flowing in can be adjusted as appropriate depending on various conditions such as the strength of the wind.

For example, on a particularly windy day, in addition to the heavy part 1d, water is injected into the impact M surgical area 1a from the air inlet 6, and the impact buffer part 1a is partially used as a heavy part. You can also do that.

When water is used as a weight in this way, weights can be easily obtained anywhere, and the weight can be easily adjusted by simply adjusting the amount of water injected.

Moreover, when installing, the shock absorber can be attached to the wall in a light state without injecting water into the heavy parts, and then water can be injected as a weight, making the work easier without the need to lift heavy objects. can be done.

When a player or the like collides with the shock absorbing device installed in this way, the air in the vertical air chamber 3 that received the impact is transferred to the communication path 3.
a to another vertically elongated air chamber 3, and the impact force is buffered.

Furthermore, if the ball hits the shock absorber and rebounds,
Since the unevenness on the surface of the sheet-like material 1 is small, it has little effect on the direction in which the ball bounces.

When removing the shock absorber, it can be done simply by opening the air injection port 6 and the water injection lower, discharging the air and water, and removing the eyelet 4 from the hook or the like.

In addition to installing as described above, it is also possible to install a shock absorber with air injected in advance from the air injection port 6 on the wall, or to install it on the wall after injecting water from the water injection lower. Of course, it is also possible to use it.

Further, in addition to the above-mentioned shock absorbers, although not shown in the drawings, the shock absorbers may be configured as described below.

That is, the sheet-like materials may be directly bonded together to form a vertically elongated air chamber without providing a partition wall.

In this case, the cross-sectional shape of the vertically elongated air chamber corresponding to FIG. 2 of the above-described embodiment can be formed into various shapes such as circular, triangular, and semicircular.

If a shock absorber having such a cross-sectional shape has a large surface unevenness, the direction of the cushion ball will become a problem if it is used on a wall surface of a baseball field or the like.

In such a case, it is advisable to cover the entire surface of the shock absorber, which has large irregularities, with another sheet-like material such as a tarpaulin sheet.

1. The sheet-like material attached to the surface of the shock absorber can not only prevent damage from spikes, etc., but also be used as an advertising space.

The air chamber of the impact buffer part is not limited to a vertical type, but can also be horizontal, and a part where the partition wall and the sheet-like material are not bonded can be provided at any location and this part can be used as a communication path. .

In addition, the heavy part can be provided with an opening/closing part using a zipper etc. outside the waterside, and sand or iron rods etc. can be put in through the opening/closing part to use it as a weight, or the part of the heavy part can be removed from the shock absorbing part. It can also be provided removably.

When using an impact W component with a removable weight part, such as indoors where there is no influence of wind, it can be used without attaching a weight.

In addition to baseball fields, the above-mentioned shock absorbers can be used, for example, on the side of a drained pool to create a badminton or badminton field, on the walls of a gymnasium, on standing trees on ski slopes, on lift supports, etc. It can be used in all kinds of places, such as in parking lots where there is a risk of contact with cars.

〔Effect of the invention〕

Since the shock absorber of the present invention is as explained above, the following effects can be expected.

60 to 90 to the total capacity of the impact M operation area
% of air is injected into the wall, and it can be easily attached and detached as needed.

Further, a device in which a vertically elongated air chamber is formed by a partition wall can reduce surface irregularities, and when used at a baseball field, has little effect on the direction of the cushion ball.

Those with heavy parts are less susceptible to the effects of wind, etc.

Furthermore, when water is used for heavy parts, there is an advantage that water can be easily obtained anywhere.

Furthermore, by injecting water into the impact buffering part other than the mold part, the impact M cylinder part can also be partially used as an air inlet and water inlet as a heavy part.

Furthermore, when installing the shock absorber of the present invention, it is possible to hang it on the wall in a light state without injecting water into the heavy parts, and then inject water as a weight, so there is no need to lift heavy objects. There are no problems and you can work easily.

[Brief explanation of drawings]

Fig. 1: Front view of one embodiment of the shock absorber of the present invention Fig. 2: End view of section taken along line A-A in Fig. 1 Fig. 3: B- in Fig. 1
B-line cut end view 1... Sheet-like material 1a... Impact buffering part 1b... Ear part IC... Adhesive part 1d
... Heavy section 2 ... Partition wall 3 - Vertical air chamber 3a ... Communication path 4 - Eyelet
5a, 5b...Flat fastener Figure 3 a Procedural amendment (spontaneous) Patent application filed on March 19, 1990. Procedural amendment April 3, 1990 (1) The application will be amended as shown in the attached sheet.

Claims (1)

[Scope of Claims] 1. A shock absorbing section in which a communication path is formed between adjacent air chambers has a capacity of 60 to 90% of the total capacity of the shock absorbing section.
A shock absorber with air injected into it. 2. The shock absorber according to claim 1, further comprising a partition wall between the air chambers. 3. The shock absorber according to claim 1 or 2, wherein a vertically elongated air chamber is formed in the installed state. 4. The shock absorber according to any one of claims 1 to 3, further comprising a heavy section at the lower part in the installed state. 5. The shock absorber according to claim 4, wherein water is injected into the heavy part. 6. The shock absorber according to any one of claims 1 to 5, further comprising ears provided around the periphery and connecting members provided at both ends of the ears. 7. The shock absorber according to any one of claims 1 to 6, wherein another sheet-like material is attached to the surface in the installed state.