JP4097977B2 - Shock absorber for vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shock absorber for a vehicle that is installed in front of a road construction site or the like and deforms when a vehicle collides to prevent the vehicle from traveling. In particular, the vehicle has a short braking distance and is handled with light weight. The present invention relates to a shock absorber for a vehicle that is easy to handle.
[0002]
[Prior art]
In general, on road construction sites, in order to prevent a passing vehicle from accidentally coming into contact with or colliding with a construction site or a person involved in the construction, vehicles on the road surface where the vehicle in front of the construction site or surrounding vehicles should not enter. A vehicle shock absorber is used to prevent vehicle travel at a short distance when an intrusion occurs.
[0003]
An impact shock absorber for a vehicle according to the prior art, for example, as described in JP-A No. 11-280030, has one end extending in the vehicle entry direction and one end extending to a shock absorber main body formed of foamed plastic, foam rubber or the like in a three-dimensional polygon. Constitutes an impact shock absorber for a vehicle having an extension member wound around the buffer body, and prevents the vehicle from entering when the vehicle enters the extension member when entering the vehicle, and prevents the extension member and the buffer by the weight of the vehicle. What prevents the body body from playing off is known. The extension member of the vehicle impact buffer according to the prior art uses a vinyl chloride resin sheet reinforced with polyester resin fibers.
[0004]
[Problems to be solved by the invention]
The vehicle shock absorber according to the prior art is capable of braking the vehicle by preventing the shock absorber body from being flipped by the vehicle, but the workability is poor because the weight of the extension member is about 40 kg, Furthermore, since the extension member is a flat seat, the vehicle shock absorber slides even when the vehicle is on, and there is a problem that the braking distance may be relatively long depending on the road surface condition such as rain. there were.
[0005]
An object of the present invention is to provide a vehicle shock absorber that eliminates the problems caused by the above-described prior art and is easy to handle by an operator due to weight reduction and has improved vehicle braking performance.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides:
A columnar buffer body (1) having an elastic force to absorb an impact, and a rectangular mesh member (2) having a width equal to the length of the buffer body,
The slope on the vehicle entry side of the shock absorber body is covered by a location (d) close to one end (E) of the mesh member,
The location (e) closer to the end (E) than the location (d) is wrapped around the surface on the opposite side of the entry side slope,
A location (f) closer to the end (E) than the location (e) is laid under the buffer body (1),
A location (g) closer to the end (E) than the location (f) is between the vehicle entry side slope of the buffer body and the mesh member (d) covering the slope. Is sandwiched between
The first characteristic is that the portion of the rectangular mesh member (2) not wound around the side surface of the buffer body (1) is extended in the vehicle entry direction and can be spread on the road surface. (Claim 1).
[0007]
Further, in the vehicle impact shock absorber described above, the mesh of the mesh member (2) wound around the shock absorber main body (1) in the vicinity of one end is a square composed of sides parallel to the rectangular outline. This is the second characteristic (Claim 2),
A third feature (Claim 3) is that the mesh of the mesh member is a triangle.
A fourth feature is that the display plate is detachably attached to the mesh member.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, a vehicle shock absorber according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a view for explaining a vehicle shock absorber according to a first embodiment of the present invention, and FIGS. 2 to 4 are views for explaining a vehicle shock absorber according to another embodiment of the present invention. is there. Note that the present invention is not intended to be limited to this embodiment.
[0009]
<Description of First Embodiment>
The vehicle impact shock absorber according to the first embodiment of the present invention includes a triangular prism-shaped shock absorber body 1 as shown in FIG.
One end is wound around the side surface of the buffer body 1 and the other end is extended in the vehicle entry direction on the right side of the drawing.
As shown in the drawing, the mesh member 2 is a rectangular member having a width dimension equal to the length dimension of the triangular prism-shaped buffer body 1.
[0010]
The vehicle impact buffer body, and FIG. 1 (b) to如shown rather, the network-like member 2 end one turn or more cushion body from the outside to the inside a vehicle approach direction of the cushion body 1 of the (extension member) Winding,
It is fixed by a tool (not shown), and the other end is installed in the vehicle entry direction on the right side of the drawing.
The details are as illustrated in FIG.
That is, the vehicle enters from the right side of the figure toward the left side of the figure. Accordingly, the part indicated by the symbol F is the end of the mesh member on the vehicle entry side. The part shown with the symbol E is the opposite end.
Of both the slopes of the buffer body 1, a “spot d slightly apart from one end E of the mesh member” is placed on the slope on the vehicle entry side to cover the buffer body.
A portion e closer to the end E than the above-described portion d is put on the “slope on the side opposite to the entry side” to cover the buffer body.
Further, a portion f closer to the end E than the “location e covering the opposite slope” is laid under the buffer body 1,
The part g closer to the end E than the part f is sandwiched between “between the part d and the buffer body 1”.
In the present invention, the “wrapping direction of the mesh member” described above with reference to FIG.
[0011]
As shown in FIG. 1 (c), the mesh member 2 is mainly composed of a polyester fiber yarn 2mm diameter mesh yarn 20a knitted so as to form a 10mm to 30mm square mesh, and the edge of the mesh In order to prevent fraying, the reinforcing member 2a is formed at the edge portion by a reinforcing rope 20b (diameter 4mm, strength 1568N / piece) made of polyvinyl alcohol fiber and a suture thread 20c (diameter 1mm, strength 260N / piece). is doing.
[0012]
The overall physical properties of the mesh member 2 are that the tensile strength of the mesh yarn 20a in the longitudinal direction (longitudinal direction in which the vehicle enters) is about 340 N / 3 cm, and the tensile strength of the mesh yarn 20 a in the lateral direction is about 330 N / 3 cm. The warp yarn has an elongation of about 24% and the weft yarn has an elongation of about 27%.
[0013]
When the mesh size of the mesh member 2 is a square of 50 mm square or more, the stitch is deformed and extended in the vertical direction (vehicle entry direction) in the event of a vehicle collision, so that it is knitted into a 10 mm to 30 mm square. However, it is not particularly limited. In addition, a diamond shape may be considered as the stitch shape. However, when the vehicle collides, the diamond shape tends to extend in the vertical direction, and a square shape or a triangle shape is preferable.
[0014]
Further, as shown in FIG. 4B, the cushion body 1 includes a foam 103 formed by pulverizing a foam chip made of foam plastic, foam urethane or foam rubber and solidifying it with a binder, and the foam. 103 is formed by an inner surface cover 102 that covers 103, and a surface cover 101 that covers the foam 103 covered by the inner surface cover 102. That is, the buffer body 1 is installed on the road surface by the covers 102 and 101 and has a double structure because it may be damaged by wear or the like during use. These covers are waterproofed. Is desirable. The material of this cover is, for example, an EVA sheet with a thickness of 0.35 mm containing a base fabric, and the physical properties are preferably those having a tensile strength of 600 N / 3 cm and an elongation of 17%. It is preferable to pulverize waste urethane foam, etc., which is no longer needed, and solidify with a binder. Apparent strength is 54.1 Kg / cm ³ , hardness is 122.3 N, tensile strength is 26.7 kPa, and elongation is About 35.0% is preferable.
[0015]
The foam may be solid foamed plastic, foamed urethane, or foamed rubber, and may be further provided with one or more hollow portions 104 whose inner space is shrunk by impact, and further, foamed plastic or foamed urethane or It may be formed from a plurality of foamed chips made of foamed rubber.
[0016]
The vehicular shock absorber configured as described above has a height of the main body 1 of about 1 m, a total length of about 5 m in the longitudinal direction, and a width of about 1.6 m in the state of being installed as shown in FIG. 1A, when the vehicle enters from the right direction, the vehicle collides with the buffer body 1 while riding on the mesh member 2, and the front side of the vehicle rides on the buffer body 1 to It is possible to prevent the vehicle from being blown off by preventing the entry and providing the buffer body 1 with the mesh member 2 as an extension member.
[0017]
In particular, the impact shock absorber for a vehicle according to the present embodiment uses the mesh member 2 having a mesh as the extension member, thereby reducing the extension member from the conventional 40 kg to about 10 kg or more and improving the workability. However, because of the stitch shape, the air permeability is good, and twisting by wind can be prevented. Furthermore, the impact shock absorber for the vehicle improves the braking function by forming the unevenness with respect to the road surface when the vehicle collides, and the braking function is increased when the stitch is entangled with the protruding portion such as the lower part of the vehicle. The distance can be shortened by about 2 m. Further, by forming the extending member with the mesh member 2, it is possible to prevent the mesh member 2 and the shock absorber body 1 from being flipped by the stitch being entangled with the protruding portion such as the lower part of the vehicle. Further, by using the mesh, even when it is raining, the water can be drained by the mesh, so that it is more difficult to slip, and it is possible to prevent the braking performance from being lowered due to the accumulation of rainwater.
[0018]
<Description of Second Embodiment>
As shown in FIG. 2 (a), a vehicle shock absorber according to the second embodiment of the present invention has a triangular prism-shaped shock absorber body 1 similar to the first embodiment, and one end on the side surface of the shock absorber body 1. In addition to the mesh member 2 installed with its other end extended in the vehicle entry direction on the right side of the drawing, a display plate 21 for indicating the traveling direction of the vehicle is provided on the surface of the buffer body 1 facing the vehicle, and the mesh member The vibration part 30 is provided at the end of the member 2 on the side where the vehicle enters. The display board 21 is provided with a yellow character arrow display 21a on a black background.
[0019]
As shown in FIG. 2 (a), the vibrating portion 30 is a device that places a heavy object of 10 kg or more on the end of the mesh member 2 on the side where the vehicle enters, or a mesh member as shown in FIG. 2 (b). It is conceivable that a bag-like portion is formed by bending the end portion on the side into which the vehicle 2 enters to sew the stitching portion 2c and inserting a hard elliptical vibrating body 30a into the bag-like portion. Also, as shown in FIGS. 2C to 2E, the circular vibrator 30b, the semicircular vibrator 30c, or the polygonal vibrator 30d may be inserted into the bag portion. The material of the vibration unit 30 is made of recycled black rubber, polyurethane rubber, chloroprene rubber, acrylic rubber, or natural rubber.
[0020]
The display board 21 is attached to the buffer body 1 by, for example, attaching a magic tape (registered trademark) to the positions opposite to the back surface and the front cover of the display board 21 to make it detachable, or hooking the display board 21 to the display board 21. And making the hooks detachable by hooking them to the stitches, making holes at the four ends of the display board 21 and fixing them with nylon bands or the like, as shown in FIGS. 3 (a) and 3 (b) In this manner, a stopper 22b having one end stitched by a stitching portion 22e is arranged at the four end portions of the display board 21, and one end of the stopper 22b is hooked on the mesh thread 20 and turned to the back of the display portion 21, thereby a female hook 22c. And male hook 22d can be attached by fitting.
[0021]
By providing the display board 21 in the vehicle impact shock absorber configured in this way, it is possible to prompt the vehicle driver to visually recognize the presence of the shock absorber body 1 (delta cushion), and further, the vibration unit 30 can be By providing, the vehicle can ride on the vibration portion 30 to give vibration to the driver to call attention, and the extension member (net-like member 2) can be further prevented from being twisted by wind or the like.
[0022]
<Description of Third Embodiment>
In the above-described embodiment, an example has been described in which the mesh member 2 is wound around the buffer body 1 having a triangular cross section by one or more turns and fixed by a metal fitting (not shown). In addition, in the present invention, FIG. ), The belt 41 is attached to the side surface of the buffer body 1 so as to be related to the end portions of the mesh member 2 on the three sides, and the belt is fixed by the belt fixing device 40, whereby the mesh member 2 is more firmly fixed. It can also be fixed to the main body 1.
In each of the above-described embodiments, an example in which a triangular prism-shaped shock absorbing elastic body is used has been described, but the present invention is not limited to this. There may be.
[0023]
【The invention's effect】
As described above, the present invention provides a vehicle shock absorber comprising a columnar shock absorber body having an elastic force for absorbing an impact, and an extension member attached to the main body and extending on a road surface. By being comprised, the handling of the operator by weight reduction is easy, and vehicle braking property can be improved.
[Brief description of the drawings]
FIG. 1 is a view for explaining an impact buffer for a vehicle according to a first embodiment of the present invention.
FIG. 2 is a view for explaining an example in which a braking portion is provided in a vehicle shock absorber according to another embodiment of the present invention.
FIG. 3 is a view for explaining an example in which a marking plate of an impact buffer for a vehicle according to another embodiment of the present invention is attached.
FIG. 4 is a view for explaining another example of attaching a marking plate of a vehicle shock absorber according to another embodiment of the present invention and a shock absorber body.
[Explanation of symbols]
1: buffer body, 2: mesh member (extension member), 2a: reinforcement member, 2c: stitched portion, 20: mesh thread, 21: marking plate, 21a: arrow display, 22b: stopper, 22c: female hook, 22d: male hook, 30: vibration part, 30a: elliptical vibration body, 30b: circular vibration body, 30c: semicircular vibration body, 30d: polygonal vibration body, 40: belt fixture, 41: belt, 101 : Surface cover, 102 inner surface cover, 103: foam, 104: cavity.

Claims (4)

A columnar buffer body (1) having an elastic force to absorb an impact, and a rectangular mesh member (2) having a width dimension equal to the length dimension of the buffer body;
The slope on the vehicle entry side of the shock absorber body is covered by a location (d) close to one end (E) of the mesh member,
The location (e) closer to the end (E) than the location (d) is wrapped around the surface on the opposite side of the entry side slope,
A location (f) closer to the end (E) than the location (e) is laid under the buffer body (1),
The location (g) closer to the end (E) than the location (f) laid out above is “the entry side slope of the buffer body and the mesh member (d) covering this entry side slope”. Sandwiched between
A vehicle impact characterized in that a portion of the rectangular mesh member (2) which is not wound around the buffer body (1) is extended in the vehicle entry direction and can be spread on the road surface. Buffer. Stitches of the net-like member (2) which is wound around the vicinity of the end of one said cushion body (1), wherein the square der Rukoto consisting sides parallel to the contour of the rectangle, in claim 1 vehicular shock absorbing body described. The stitches of the shock absorber body (1) to the net is wound around the vicinity of one end member (2) is characterized in that it is a triangular, vehicle impact buffer member according to claim 1. Said mesh member to the display panel, characterized in that the Attach detachable, vehicle impact buffer member according to either one of claims 1 to 3.