JP2002309518A - Impact absorbing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an impact absorbing device capable of obtaining sufficient impact absorbing effect when a vehicle collides. SOLUTION: A plurality of impact absorbing units 5, 6 are put in covers 4, 20 consisting of a bottom wall, peripheral walls 7b, 21a, and a lid closing upper end openings of the peripheral walls 7b, 21a. The impact absorbing units 5, 6 are formed by filling the inside of cylindrical bodies 14, 15 having a larger diameter than that of cylindrical bodies 12, 13 for absorbing impact with a plurality of the cylindrical bodies 12, 13 for absorbing impact extending in the vertical direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in, for example, a barrier at a junction of a highway, a barrier at a tollgate, a barrier at a median strip, etc., and absorbs the impact of a vehicle when it collides, thereby reducing the body and facilities. The present invention relates to a shock absorber used in a shock absorber for reducing both damages.

[0002] In this specification, the left side of FIG. In this specification,
The term paper includes a paper layer as a main material and a metal layer or a plastic layer laminated on the paper layer in addition to the simple paper.

[0003]

2. Description of the Related Art Conventionally, as a shock absorber of this kind, 100 to 40
A so-called cushion drum filled with a water-filled bag filled with 0 liter of water is used.

According to the cushion drum, 65 km
/ H when a 1.5-ton vehicle running at
Although it can decelerate to 5.7 km / h, when impact energy is received, the drum can deforms and the water-filled bag breaks, causing water to scatter.
Since the vehicle flows out, the vehicle may collide with a barrier behind the cushion drum, and a sufficient cushioning effect may not be obtained.

According to the "Safety Standards for Ensuring Driver Safety" of the United States Department of Transportation, which defines driver safety standards, when the gravitational acceleration (the floor G in the front-rear direction) received by a vehicle during a collision is 20 G or less. In addition, it is said that occupant damage can be reduced to a level that is not dangerous to life.

An object of the present invention is to solve the above-mentioned problems and to provide a shock absorber capable of obtaining a sufficient shock absorbing effect when a vehicle collides.

[0007]

According to the first aspect of the present invention, there is provided an impact absorbing device for absorbing an impact extending vertically in a cover comprising a bottom wall, a peripheral wall and a lid closing an upper end opening of the peripheral wall. It has a plurality of cylindrical bodies.

According to the shock absorbing device of the first aspect of the present invention, when the vehicle collides, the shock absorbing cylindrical body placed in the cover exhibits excellent shock absorbing characteristics because it is a cylinder. Deforms, so that the impact is absorbed. In addition, the impact absorbing cylindrical body does not scatter, thereby preventing the vehicle from colliding with a barrier or the like behind it. Therefore, a sufficient buffer effect can be obtained.

According to a second aspect of the present invention, in the shock absorbing device according to the first aspect, a plurality of impact absorbing cylindrical bodies are packed in a cylindrical body having a diameter larger than that of the impact absorbing cylindrical body to form an impact absorbing unit. , A plurality of shock absorbing units are housed in the cover. According to the present invention, all the shock absorbing cylindrical bodies packed in the large-diameter cylindrical body of the shock absorbing unit are crushed without bias, and the shock absorbing effect is further improved.

According to a third aspect of the present invention, there is provided the shock absorbing device according to the second aspect of the present invention, wherein a plurality of shock absorbing units are placed in a front portion of the cover, and a tubular body extending in a vertical direction is provided in a rear portion of the cover. A shock absorber made of a cushioning material filled in a cylindrical body, and a shock absorbing cylindrical body are packed. Here, as the cushioning material, for example, sand, slaked lime, gel-like material, or the like packed in a spherical plastic container is used. In this case, as a plastic container,
It is preferable to use one that is broken by a vehicle collision.
According to the present invention, since those having different shock absorbing characteristics are combined, an excellent shock absorbing effect can be obtained from the vehicle collision to the stop.

According to a fourth aspect of the present invention, there is provided the shock absorbing device according to the third aspect of the present invention, wherein an inner cylindrical body having a smaller cross-sectional area and extending in a vertical direction is arranged in the cylindrical body of the shock absorber. A gap between the cylindrical body and the inner cylindrical body is filled with a cushioning material. According to the present invention, an excellent shock absorbing effect can be obtained by the synergistic action of the inner cylindrical body and the cushioning material.

According to a fifth aspect of the present invention, there is provided the shock absorbing device according to the third aspect of the present invention, wherein a plurality of shock absorbing units are disposed in the cylindrical body of the shock absorbing body, and a gap between the cylindrical body and the shock absorbing unit is provided. The shock absorbing unit is filled with a cushioning material, and the cross-sectional area is smaller than the cylindrical body and the cylindrical body that extends in the vertical direction, and a plurality of shock absorbing cylindrical bodies packed in the cylindrical body It becomes. According to the present invention, all the shock absorbing cylindrical bodies packed in the large-diameter cylindrical body of the shock absorbing unit are crushed without bias, and the shock absorbing effect is further improved.

According to a sixth aspect of the present invention, there is provided a shock absorbing device, wherein the cover comprises a bottom wall, a peripheral wall, and a lid for closing an upper end opening of the peripheral wall, and a paper-made inner body placed in the cover and along the inner peripheral surface of the peripheral wall. And a plurality of vertically absorbing shock absorbing cylindrical bodies placed in the front part inside the cover, and a cushioning material filled in a gap between the inner lining body and the shock absorbing cylindrical bodies. It is. According to the present invention, an excellent shock absorbing effect can be obtained by the synergistic action of the shock absorbing cylindrical body and the cushioning material.

According to a seventh aspect of the present invention, there is provided a shock absorbing device, wherein the cover includes a bottom wall, a peripheral wall, and a lid for closing an upper end opening of the peripheral wall, and a paper-made inner body is placed in the cover and along the inner peripheral surface of the peripheral wall. And a plurality of shock absorbing units placed at the front inside the cover, and a cushioning material filled in a gap between the inner paste body and the shock absorbing unit, and the shock absorbing unit extends vertically. And a plurality of impact-absorbing cylindrical bodies packed in the cylindrical body and extending in the vertical direction. According to the invention,
An excellent shock absorbing effect can be obtained by the synergistic action of the shock absorbing unit and the cushioning material. In addition, all the shock absorbing cylindrical bodies packed in the large-diameter cylindrical body of the shock absorbing unit are evenly crushed, and the shock absorbing effect is further improved.

According to an eighth aspect of the present invention, in the shock absorbing device according to the sixth or seventh aspect, the plurality of impact absorbing cylindrical bodies are disposed forward of a central portion of the cover in the front-rear direction. is there. According to the present invention, the initial shock absorbing effect can be enhanced.

According to a ninth aspect of the present invention, in the shock absorbing device according to any one of the third to eighth aspects, the cushioning material comprises:
It consists of a buffer mass. Here, as the buffer mass, a honeycomb-shaped concrete molded body, pottery,
A brittle material made of sponge, plaster or the like is used. ADVANTAGE OF THE INVENTION According to this invention, the whole acts with order, and the outstanding shock absorption effect is obtained.

A shock absorbing device according to a tenth aspect of the present invention is the shock absorbing device according to any one of the first to ninth aspects, wherein the shock absorbing cylindrical body is made of paper. According to the present invention, a region wider than the region where the vehicle has collided is deformed in the vertical direction, and a sufficient shock absorbing effect is exhibited.

In all of the above inventions, all the tubular bodies may be formed of plastic, metal, a composite material thereof, or the like, in addition to paper (including recycled paper). The cover is made of, for example, an olefin-based resin (including a recycled resin).

[0019]

Embodiments of the present invention will be described below with reference to the drawings. In the following description, FIG.
The left side is called the upper side and the right side is called the opposite side. Further, the same components and portions are denoted by the same reference symbols throughout the drawings, and redundant description will be omitted.

Embodiment 1 This embodiment is shown in FIGS. 1 to 7, in which a shock absorber according to the present invention is applied to a shock absorber installed, for example, in front of a barrier at a tollgate on a highway. It is a thing.

As shown in FIG. 1, the shock absorbing device (1)
A plurality arranged in front and rear of the barrier (B),
Here, it consists of four shock absorbers (2) and (3).

The foremost shock absorbing device (2) (first shock absorbing device) includes a cover (4) and a plurality of, for example, seven first shock absorbing units packed in a front portion of the cover (4). (5), and a plurality of, for example, nine second shock absorbing units (6) packed in the rear part of the cover (4). The number of the two shock absorbing units (5) and (6) is not limited to the above.

As shown in FIGS. 2 and 3, the cover (4)
The bottom wall (7a) is formed in a semi-elliptical shape when viewed from a plane and has a front end protruding forward, and is formed integrally on the periphery of the bottom wall (7a) in a rising shape, and the front end is formed forward. A cover body (7) formed by an arc-shaped peripheral wall (7b) protruding from the cover body (7), and an openable / closable lid (8) for closing an upper end opening of the cover body (7).

On the lower surface of the bottom wall (7a) of the cover body (7), two concave grooves (9) extending in the left and right direction are formed by deforming the bottom wall (7a) so as to protrude upward. Are formed at intervals. The concave groove (9) is used for inserting a fork of a forklift. As shown in FIG. 4, on the bottom wall (7a) of the cover body (7), in order to level the unevenness generated by forming the concave groove (9), a plurality of left and right extending The cylindrical bodies (10) are arranged side by side. The lid (8) has a top wall (8a) having a semi-elliptical shape in a plan view and an arc-shaped front end protruding forward, and a cover formed integrally with the periphery of the top wall (8a) in a hanging manner. Body
The (7) peripheral wall (7b) comprises a skirt (8b) along the outer peripheral surface. The lid (8) is attached to the cover body (7) by a string (11). The cover body (7) and the lid (8) are each integrally formed using a recycled olefin resin or the like.

First and second shock absorbing units (5) and (6)
Means that a plurality of shock absorbing cylindrical bodies (12) (13) extending in the vertical direction are packed in large-diameter cylindrical bodies (14) (15) having a larger diameter and extending in the vertical direction. Is formed. The inner diameters of the shock absorbing cylindrical bodies (12) and (13) of the two shock absorbing units (5) and (6) are equal to each other, but the wall thickness is the first.
The impact absorbing cylindrical body (12) of the impact absorbing unit (5) is thinner. The large-diameter cylindrical bodies (14) and (15) of the two shock-absorbing units (5) and (6) have the same thickness, but the inner diameter is the large-diameter cylindrical body of the first shock-absorbing unit (5). (14) is smaller.

The cylindrical body (10) and the shock absorbing cylindrical bodies (12) (1)
3) and the large-diameter cylindrical bodies (14) and (15) are formed of paper (including recycled paper), plastic, metal, and composites thereof.

As shown in FIG. 5, two binding bodies (5A) each having three first shock absorbing units (5) bound by three polypropylene bands (16) spaced apart in the vertical direction. ) And one first shock absorbing unit (5),
Five polypropylene bands spaced vertically
It is bound by (17) and is packed in the front part inside the cover body (7) (see FIG. 7). As shown in FIG. 6, three second shock absorbing units (6) arranged in the left-right direction have four polypropylene bands (1) spaced apart in the vertical direction.
8), three such bundles (6A) are packed side by side at the rear in the cover body (7) (see FIG. 7). Then, a lid (8) is placed on the upper end of the cover body (7).

Another shock absorbing device (3) comprises a cover (20) and a plurality of, for example, nine second shock absorbing units (6) packed in the cover (20).

The cover (20) has a square bottom wall (not shown) as viewed from a plane, and a cover body (21a) formed integrally with the periphery of the bottom wall in a rising shape and having a horizontal cross-sectional square wall (21a). 21) and an openable / closable lid (19) for closing the upper end opening of the cover body (21) (see FIG. 8). As shown in FIG. 8, two concave grooves (28) extending in the left-right direction are formed on the lower surface of the bottom wall of the cover body (21) by deforming the bottom wall so as to protrude upward, so as to be spaced apart in the front-rear direction. Is formed. The concave groove (28) is used for inserting a fork of a forklift. The lid (19) is formed integrally with the top wall (19a), which is square when viewed from a plane, and on the periphery of the top wall (19a) in a hanging manner, and is formed on the outer peripheral surface of the peripheral wall (21a) of the cover body (21). A skirt portion (19b) extends along the skirt portion (19b), and is attached to the cover body (21) by a string (not shown). Cover body
(21) and the lid (19) are each integrally formed using a recycled olefin resin or the like.

As in the case of the first shock absorber (2), the second shock absorbing units (6) are bound and packed three by three.

The configuration of the shock absorber except for the first shock absorber (2) is not limited to the above-described one, and can be changed as appropriate. For example, in a cover, a cylinder filled with a cushioning material or a lump for buffer packed in a container,
It is also possible to use a large-diameter cylindrical body in which a small-diameter cylindrical body is placed, and a gap between the long cylindrical bodies is filled with a buffer material or a buffer mass packed in a container.

Next, a specific example of an experiment conducted using the shock absorbing device (1) of the first embodiment will be described.

Large diameter cylindrical body of the first shock absorbing unit (5)
As (14), seven paper tube base papers having an inner diameter of 200 mm and a wall thickness of 5 mm were prepared. As the shock absorbing cylindrical body (12) of the first shock absorbing unit (5), one made of paper tube base paper and having an inner diameter of 38 mm and a thickness of 1 mm is 133.
This was prepared, and 19 of these were packed in each large-diameter cylindrical body (14).

Large-diameter cylindrical body of the second shock absorbing unit (6)
As (15), 36 paper tube base papers having an inner diameter of 300 mm and a thickness of 5 mm were prepared. In addition, as the shock absorbing cylindrical body (13) of the second shock absorbing unit (6), 1080 pieces of paper tube base paper having an inner diameter of 38 mm and a wall thickness of 1.5 mm are prepared, and also made of paper tube base paper. 333 pieces having an inner diameter of 38 mm and a wall thickness of 2.2 mm were prepared. In the frontmost shock absorber (2) and the second and third shock absorbers (3) from the front, each large-diameter cylindrical body (15) has an inner diameter of 38 mm and a thickness of 1.5 mm.
Of the shock absorbing cylindrical body (13) of 40
Using the shock absorbing unit (6), the rearmost shock absorber
In (3), each large-diameter cylindrical body (15) has an inner diameter of 38 m.
A second shock-absorbing unit (6) in which 27 cylinders each having a thickness of 2.2 mm and a thickness of 2.2 mm were packed was used.
All shock absorbing cylinders (12) (13) and large diameter cylinders
The length of (14) (15) is 1 m, and the height inside the covers (4) (20) is 1 m. In addition, the cover of each shock absorber (2) (3)
(4) First and second shock absorbing units into (20) (5) (6)
Are as described above.

Further, as shown in FIG. 8, two polypropylene fastening belts having a width of 21 mm, which are stretched back and forth and left and right, with the first and second shock absorbers (2) and (3) from the front. (23) and bind the third and fourth shock absorbers (3) from the front with a single 21 mm-wide polypropylene fastening belt (2
These pieces were bound together by a polypropylene fastening belt (25) having a width of 21 mm stretched back and forth and up and down. The length in the front-back direction of the shock absorbing device (1) is 4.5 m.

As shown in FIG. 9, a steel plate (27) having a height of 0.65 m and a width of 1.7 m is fixed at one end so that the minimum ground clearance is 0.25 m. A collision test was conducted in which a moving barrier (26) having a total weight of 1 ton hit the impact absorbing device (1) from the steel plate (27) side at 100 km / h. The moving barrier (26) is a vehicle made of a steel structure, and is a high-rigidity collision test vehicle that does not deform even when it collides.

The moving barrier (2
6) The gravitational acceleration in the longitudinal direction and the displacement of the shock absorbing device (1) were measured. The result is shown in FIG. The maximum gravitational acceleration of the moving barrier (26) was 18.3G. This satisfies the above-mentioned US Department of Transportation's "Safety Standards for Ensuring Driver Safety". According to visual observation using a video tape recorder, the shock absorbing device (1) has a maximum of 1
m. In addition, the shock absorbing cylindrical body (1
2) (13) is in the range of the steel plate (27), that is, 0.25 to 0.6
The entire length of the impact absorbing cylindrical bodies (12, 13) contributed to the absorption of the impact, because the entire area of the impact absorbing cylindrical bodies (12, 13) was crushed over a wider range in the longitudinal direction than the range of 5 m, here, over the entire length.

Embodiment 2 This embodiment is shown in FIG. 11, and is used as the first and second shock absorbers of the shock absorber (1) shown in FIG.

In FIG. 11, the foremost shock absorber (30)
Is a cylindrical body extending vertically in the rear part of the cover (4).
In (31), for example, a spherical plastic container (not shown)
Shock absorber filled with cushioning material (32) packed inside
(33) and a plurality of impact absorbing cylindrical bodies (34). Instead of the cylindrical body (34), a cylindrical body having another cross-sectional shape such as a rectangular cylindrical body may be used. Further, as the plastic container, it is preferable to use a plastic container formed of a film so as to be easily broken by the impact of a vehicle collision.

The outer diameter of the cylindrical body (31) of the shock absorber (33) is equal to the width in the left-right direction inside the cover (4).
The cushioning material (32) is packed in one bag (not shown). The shock absorbing cylindrical body (34) is the shock absorbing cylindrical body (12) (13) of the shock absorbing unit (5) (6) of the first embodiment.
It is larger in diameter than the above, and is packed between the cover (4), the shock absorbing unit (5) and the shock absorber (31). Cylindrical body (31)
The impact-absorbing cylindrical body (34) is formed of paper (including recycled paper), plastic, metal, and a composite material thereof. When the cylindrical body (31) is made of paper, it can be easily deformed by the collision of the vehicle, but can be made to have a thickness that is difficult to tear, and as a result, the contents at the time of the collision of the vehicle, here the cushioning material (32 ) Is prevented from scattering. Cushioning material (3
As 2), sand, slaked lime, gel-like materials and the like are used.

The second shock absorber (35) from the front is a cover
In (20), a shock absorber (33) and a plurality of shock absorbing cylindrical bodies (34) are packed. Shock absorber (33)
Is inscribed in the cover (20).

Embodiment 3 This embodiment is shown in FIG. 12, and is used as the first and second shock absorbers of the shock absorber (1) shown in FIG.

In FIG. 12, the foremost shock absorber (40)
In the figure, a shock absorber (41) and a shock absorbing cylindrical body (34) are packed in a rear portion in the cover (4). The shock absorber (41) includes a cylindrical body (31), an inner cylindrical body (42) having a smaller diameter and extending in the vertical direction is concentrically arranged, and two cylindrical bodies (31) (42). ) Is filled with a cushioning material (32). The inner cylindrical body (42) and the cushioning material (32) are put together in one bag (not shown). The upper and lower ends of the inner cylindrical body (42) are closed by a suitable membrane (not shown).

The second shock absorber (43) from the front is a cover
A shock absorber (45) and a plurality of cylindrical bodies for shock absorption (34) are packed in (20). The shock absorber (45)
Inside the cylindrical body (31), an inner cylindrical body (44) having a smaller diameter and extending in the vertical direction is concentrically arranged, and the two cylindrical bodies (3
1) The gap between (44) is filled with a cushioning material (32).
The inner cylindrical body (44) has a smaller diameter than the inner cylindrical body (42) of the shock absorber (41) of the foremost shock absorber (40).
Inner cylindrical body (44) and cushioning material (32) are one bag (not shown)
Are put together. The openings at the upper and lower ends of the inner cylindrical body (44) are closed by a suitable membrane (not shown).

Each of the two inner cylindrical bodies (42) and (44) is made of paper (including recycled paper), plastic, metal, and a composite material thereof.

Embodiment 4 This embodiment is shown in FIG. 13 and is used as the first and second shock absorbers of the shock absorber (1) shown in FIG.

In FIG. 13, the foremost shock absorber (50)
In the figure, a shock absorber (51) and a plurality of shock-absorbing cylindrical bodies (34) are packed in a rear portion of the cover (4). A plurality of, here four, second shock absorbing units (6) are arranged in the cylindrical body (31), and the shock absorbing body (51) is provided between the cylindrical body (31) and the shock absorbing unit (6). The gap between them is filled with a cushioning material (32). Shock absorbing unit (6) and cushioning material (32)
Are put together in one bag (not shown). The upper and lower ends of the large-diameter cylindrical body (15) of the shock absorbing unit (6) are closed by a suitable membrane (not shown).

Embodiment 5 This embodiment is shown in FIG. 14, and is used as the first and second front shock absorbers of the shock absorber (1) shown in FIG.

In FIG. 14, the foremost shock absorber (55)
In the cover (4), a paper lining (56) is arranged along the inner peripheral surface of the peripheral wall (7b) of the cover body (7), and extends vertically to the front part in the cover body (7). A plurality of, here six, shock absorbing cylindrical bodies (57) are arranged, and a gap between the inner lining body (56) and the shock absorbing cylindrical bodies (57) is filled with a cushioning material (32). It is a thing. Note that the cushioning material (32) also exists between the front end of the inner pasted body (56) and the shock absorbing cylindrical body (57). The shock absorbing cylindrical body (57) and the cushioning material (32) are put together in one bag (not shown). In addition, shock absorbing cylindrical body (57)
The openings at both upper and lower ends are closed by a suitable membrane (not shown).

The second shock absorber (58) from the front is a cover
(20), a rectangular tubular body (59) is arranged along the inner peripheral surface of the peripheral wall (21a) of the cover body (21), and is placed in a bag (not shown) in the rectangular tubular body (59). Is filled with the cushioning material (32).

The cylindrical body (56), the shock absorbing cylindrical body (57), and the rectangular cylindrical body (59) are each formed from paper (including recycled paper), plastic, metal, or a composite material thereof. Is done.

In the fifth embodiment, the first shock absorbing unit (5) of the first embodiment may be used instead of the shock absorbing cylindrical body in the foremost shock absorber.

In the second to fifth embodiments, the cushioning material (3
As 2), a crushable and air-gapped buffer mass made of a honeycomb-shaped concrete molded product, pottery, sponge, plaster, or the like may be used.

[Brief description of the drawings]

FIG. 1 is a horizontal sectional view of a shock absorbing device using a shock absorbing device according to Embodiment 1 of the present invention.

FIG. 2 is an exploded perspective view showing a foremost shock absorber in the shock absorber of FIG. 1;

FIG. 3 is a perspective view showing a cover of a foremost shock absorber in the shock absorber of FIG. 1;

FIG. 4 is a perspective view showing the cover body.

FIG. 5 is a perspective view showing a method of combining the first shock absorbing unit of the foremost shock absorbing device in the shock absorbing device of FIG. 1;

FIG. 6 is a perspective view showing a method of combining the second shock absorbing units.

FIG. 7 is a perspective view showing how to insert the first and second shock absorbing units into the cover of the foremost shock absorbing device in the shock absorbing device of FIG. 1;

FIG. 8 is a perspective view showing a method of connecting all shock absorbing devices in the shock absorbing device of FIG. 1;

9 is a partially cutaway plan view showing a collision test method performed using the shock absorbing device of FIG.

FIG. 10 is a graph showing the relationship between the gravitational acceleration of the moving barrier in the front-rear direction and the displacement of the shock absorbing device during a collision test.

FIG. 11 is a partial horizontal sectional view of an impact absorbing device using the impact absorbing device of Embodiment 2 of the present invention.

FIG. 12 is a partial horizontal sectional view of an impact absorbing device using the impact absorbing device of Embodiment 3 of the present invention.

FIG. 13 is a partial horizontal cross-sectional view of an impact absorbing device using the impact absorbing device of Embodiment 4 of the present invention.

FIG. 14 is a partial horizontal sectional view of an impact absorbing device using the impact absorbing device of Embodiment 5 of the present invention.

[Explanation of symbols]

 (2) (3) (30) (35) (40) (43) (50) (55) (58): Shock absorber (4) (20): Cover (5) (6): Shock absorber ( 7a): Bottom wall (7b) (21a): Peripheral wall (8) (19): Lid (12) (13) (34) (57): Shock absorbing cylindrical body (32): Buffer material (33) ( 41) (45) (51): Shock absorber (42) (44): Inner cylindrical body

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Katsuhiko Kagawa, Inventor, Showa Products Co., Ltd. 8-14 Ryuzo-ji, Chuo-ku, Osaka-shi, Osaka (72) Takuya Sawai, Inventor, 8-14 Ryuzo-ji-cho, Chuo-ku, Osaka, Osaka No. Showa Products Co., Ltd. F-term (reference) 2D101 CA01 CA02 CA03 DA00 DA04 DA05 EA01 FA00 FA04 GA11 GA15 GA17

Claims (10)

[Claims] 1. A shock absorber comprising a plurality of vertically-absorbing cylindrical bodies for shock absorption, which are placed in a cover comprising a bottom wall, a peripheral wall, and a lid closing an upper end opening of the peripheral wall. 2. A shock absorbing unit is formed by packing a plurality of impact absorbing cylindrical bodies into a cylindrical body having a diameter larger than the plurality of impact absorbing cylindrical bodies, and the plurality of impact absorbing units are contained in a cover. Item 2. The impact absorbing device according to Item 1. 3. A shock absorber including a plurality of shock absorbing units disposed at a front portion in the cover, and a vertically extending tubular body and a cushioning material filled in the tubular body at a rear portion of the cover. The impact absorbing device according to claim 2, wherein the impact absorbing cylindrical body is packed. 4. An inner cylindrical body having a smaller cross-sectional area and extending in a vertical direction is disposed in a cylindrical body of the shock absorber, and a cushioning material is provided in a gap between the cylindrical body and the inner cylindrical body. 4. The impact absorbing device according to claim 3, wherein the shock absorbing device is filled. 5. A plurality of shock absorbing units are arranged in a cylindrical body of the shock absorbing body, and a gap between the cylindrical body and the shock absorbing unit is filled with a cushioning material.
4. The shock absorbing device according to claim 3, comprising a cylindrical body having a smaller cross-sectional area than the cylindrical body and extending in the vertical direction, and a plurality of shock absorbing cylindrical bodies packed in the cylindrical body. 6. A cover comprising a bottom wall, a peripheral wall, and a lid for closing an upper end opening of the peripheral wall, a paper inner body placed in the cover and along the inner peripheral surface of the peripheral wall, and a front part in the cover. A plurality of shock absorbing cylindrical bodies extending in the vertical direction,
A shock absorber comprising a cushioning material filled in a gap between the inner lining and the shock absorbing cylindrical body. 7. A cover comprising a bottom wall, a peripheral wall, and a lid for closing an upper end opening of the peripheral wall, a paper-coated body placed in the cover and along an inner peripheral surface of the peripheral wall, and a front part in the cover. Consisting of a plurality of shock absorbing units and a cushioning material filled in a gap between the inner body and the shock absorbing unit,
An impact absorbing device in which an impact absorbing unit is formed by a vertically extending cylindrical body, and a plurality of vertically absorbing shock absorbing cylindrical bodies packed in the cylindrical body. 8. The cover according to claim 6, wherein the plurality of impact-absorbing cylindrical bodies are disposed forward of a central portion of the cover in the front-rear direction.
Or the shock absorber according to 7. 9. The shock-absorbing device according to claim 3, wherein the shock-absorbing material is a mass of shock-absorbing material. 10. The shock absorbing device according to claim 1, wherein the shock absorbing cylindrical body is made of paper.