JP3889172B2 - Speed-sensitive slow acceleration device - Google Patents

Description

【００４４】
ホウ素原子を含むシロキサンがゆっくり変形するとき、その系はあたかも粘性流体のように振るまい、すばやく変形するときは剛体のようになる。図５は、異なった周波数の信号をシリコーンバウンシングパテに与え、そのときの硬さを観測したものであり、横軸は周波数、縦軸は硬度、温度条件は２５℃である。
【００４５】
図６のグラフに示すように、０．１Ｈｚ付近の弾性率は小さい。これはシリコーンバウンシングパテが柔らかいことを意味している。周波数が高くなるにつれて弾性率は顕著に増加する。剛体的な振るまいに変化したことが判る。なお、一般のシリコーンゴムの弾性率は、グラフから明らかのように、この領域の周波数では変化しない。
【００４６】
次に、第４の実施形態の作用について説明する。
【００４７】
車両が徐行して進行し、シリコーンバウンシングパテ２３を充填した中空体２４に乗り上げると、タイヤ１１によってゆっくり踏まれた箇所は押し潰される。車両がさらに徐行進行すると、タイヤ１１が通過する箇所のみが押し潰され、粘弾性抵抗によって車両の徐行を促進でき、車両に上下方向の振動が加わることがない。
【００４８】
また、車両が徐行することなく、シリコーンバウンシングパテ２３を充填した中空体２４に乗り上げた場合、シリコーンバウンシングパテ２３の性質によって剛体的になるため、車体に大きな衝撃が加わる。従って、車両の速度に感応して徐行促進できる。
【００４９】
なお、前記各実施形態においては、速度感応型徐行促進装置を車両の進行方向に長い長方形状あるいは進行方向と直角方向に長い長方形状に構成し、路面に対して車両の車幅間隔に対応して一対配置するようにしたが、車両が乗り上げることが可能な高さ（厚さ）の平板状であればよく、その形状に限定されるものではない。
【００５０】
【発明の効果】
以上説明したように、請求項１によれば、車両が徐行して中空体に乗り上げると、タイヤで踏まれた箇所の区画室の内部の粘性流体は小孔を通って隣の区画室に移動するため、タイヤで踏まれた区画室は押し潰される。従って、車両が中空体を乗り上げても上下方向の振動が加わることはなく、車両の徐行を促進でき、車両が徐行することなく、中空体に乗り上げた場合、区画室が荷重を受けても、内部の流体の粘性抵抗によって小孔を通って隣の区画室に移動できないので、車体に大きな衝撃が加わる。従って、車両の速度に感応して徐行促進できる。
【００５３】
従って、前記速度感応型徐行促進装置を例えば駐車場の入口、料金所の直前、団地内の信号の無い横断歩道、スクールゾーンに設置することにより、徐行を促進して歩行者等の安全を守ることができる。しかも、路面に敷設して固定するだけであるため、施工が簡単であり、また設置場所の変更に対しても容易に対処でき、経済的である。
【図面の簡単な説明】
【図１】この発明の第１の実施形態を示し、（ａ）は平面図、（ｂ）は縦断側面図、（ｃ）は横断側面図。
【図２】同実施形態の作用を示す縦断側面図。
【図３】この発明の第２の実施形態を示し、（ａ）は縦断正面図、（ｂ）は横断側面図。
【図４】この発明の第３の実施形態を示す一部切欠した側面図。
【図５】この発明の第４の実施形態を示す一部切欠した側面図。
【図６】同実施形態のシリコーンバウンシングパテの特性を示すグラフ。
【符号の説明】
１…中空体
５ａ〜５ｆ…区画室
６…小孔
７…粘性流体[0001]
BACKGROUND OF THE INVENTION
The present invention is installed on a road surface where a vehicle must decelerate for safe driving such as an entrance of a parking lot, a toll booth, a school zone, etc. Relates to the device.
[0002]
[Prior art]
There are many pedestrian traffic at the entrance of parking lots such as department stores and supermarkets, and on the front side of the pedestrian crossing where there is no signal in the housing complex, and the vehicle must slow down for safe driving. Therefore, conventionally, a warning device in which a large number of convex protrusions are provided on a road surface with a predetermined interval is known. This warning device has a structure in which when a vehicle tire rides on a protrusion, the vehicle body receives an impact in the vertical direction and vibrates to prompt the driver to drive slowly.
[0003]
[Problems to be solved by the invention]
However, the warning device has a problem that a large impact is applied to the vehicle body even if the vehicle is slowed down, an impact sound is generated and there is an unpleasant feeling, and an electronic device mounted on the vehicle body is adversely affected.
[0004]
The warning device is constructed by partially raising concrete and asphalt during construction of the road surface, or by embedding a protruding member made of a synthetic resin material in the road surface. Therefore, there is a problem that the construction cost increases, and when the entrance of the parking lot, the pedestrian crossing, or the location of the school zone is changed, the construction must be performed again.
[0005]
The present invention has been made paying attention to the above circumstances, and the object of the present invention is to be able to pass slowly and comfortably without giving vibrations to the vehicle, and to adversely affect electronic devices mounted on the vehicle body. Another object is to provide a speed-sensitive slow acceleration device that can be easily installed.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a hollow body made of an elastic body fixedly installed on a road surface and crushed by its weight when stepped on by a vehicle tire, and a predetermined inside of the hollow body. A partition wall that is provided at intervals and divides the interior of the hollow body into a plurality of compartments, a viscous fluid filled in each compartment of the hollow body, and a partition wall provided between the partition walls When the hollow body is stepped and crushed by a tire of a slow vehicle, the viscous fluid is circulated to an adjacent compartment to absorb vibrations to the slow vehicle, and the hollow body is a vehicle tire. A small hole for controlling the flow of the viscous fluid is provided so as to suppress the flow of the viscous fluid to an adjacent compartment when being stepped on suddenly and to give an impact to the vehicle. Is in a speed-sensitive slow acceleration device
[0011]
According to the first aspect, when the vehicle slows down and rides on the hollow body, the viscous fluid inside the compartment where the tire is stepped on moves through the small hole to the adjacent compartment, so The vacant compartment is crushed. Therefore, even when the vehicle rides on the hollow body, the vertical vibration is not applied, and the slow running of the vehicle can be promoted.
[0012]
In addition, when the vehicle rides on the hollow body without slowing down, even if the compartment receives a load, it cannot move to the next compartment through the small hole due to the viscous resistance of the fluid inside, so there is a large impact on the vehicle body. Will be added. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
[0018]
1 and 2 show a first embodiment, FIG. 1 shows a speed-sensitive slow acceleration device, (a) is a plan view, (b) is a longitudinal side view, and (c) is a transverse side view. . In the figure, reference numeral 1 denotes a flat plate-like hollow body. The hollow bodies 1 are arranged one by one apart from each other in the vehicle width interval, and have a long rectangular parallelepiped shape along the traveling direction of the vehicle.
[0019]
The hollow body 1 includes a lower member 2 made of an elastic sheet such as rubber and an upper member 3 made of an elastic housing such as rubber. A flange portion 3 a joined to the outer peripheral edge portion of the lower member 2 is provided at the outer peripheral edge portion of the upper member 3, and the flange portion 3 a is bonded or welded to the lower member 2.
[0020]
Furthermore, a partition wall 4 is integrally provided inside the upper member 3 with a predetermined interval in the longitudinal direction, and a lower end surface thereof is bonded or welded to the upper surface of the lower member 2, and a plurality of compartments 5a to 5f are provided. Is formed. Further, a small hole 6 communicating with the adjacent compartments 5a to 5f is formed in the lower end portion of the partition wall 4.
[0021]
The compartments 5a to 5f are filled with a viscous fluid 7 such as water and oil. When the hollow body 1 receives a load from the top and the compartments 5a to 5f are crushed from above, the viscosity of the inside of the compartments 5a to 5f is filled. The fluid 7 moves through the small holes 6 to the adjacent compartments 5a to 5f.
[0022]
Further, an iron presser frame 12 is provided in the flange portion 3a, and a plurality of attachment holes 8 penetrating the flange portion 3a and the lower member 2 are provided in the presser frame 12 at predetermined intervals. Then, the hollow body 1 is laid on the road surface 9 such as asphalt, and a fixing bolt for fixing the hollow body 1 to the road surface 9 is formed by inserting a mounting bolt 10 into the mounting hole 8 and screwing it into the road surface 9. Yes.
[0023]
The mounting bolt 10 is effectively a tapping screw, a coiled screw, or the like, and may be appropriately selected depending on the material and state of the road surface 9, and the lower member 2 may be bonded to the road surface 9 with an adhesive.
[0024]
Next, the operation of the first embodiment will be described.
[0025]
A pair of hollow bodies 1 are laid on the road surface 9 where the vehicle must slow down, such as at the entrance of the parking lot, immediately before the toll booth or before the pedestrian crossing in the housing complex, and spaced apart by the vehicle width interval. , And are fixed to the road surface 9 with mounting bolts 10. In this state, the vehicle travels while slowing down, and as shown in FIG. 2, when the vehicle tire 11 rides on the hollow body 1, the compartment 5 a where the tire 11 is stepped on is compressed by a load from above. Since the internal viscous fluid 7 moves to the adjacent compartment 5b through the small hole 6, the compartment 5a stepped on by the tire 11 is crushed.
[0026]
Therefore, there is almost no step between the road surface 9 and the hollow body 1, and no great vibration or impact is applied to the slowing vehicle. As the vehicle further travels slowly, the tire 11 crushes the next compartment 5b, and the viscous fluid 7 in the compartment 5b moves through the small hole 6 to the adjacent compartment 5a. Therefore, the collapsed compartment 5a is expanded and restored by the viscous fluid 7 to be introduced. Thus, since the tire 11 of the vehicle can proceed while crushing the compartments 5a to 5f one after another, the vehicle body is not subjected to vertical vibration, and the slow driving of the vehicle can be promoted.
[0027]
Further, when the vehicle rides on the hollow body 1 without slowing down, even if the compartment 5a receives a load, the viscous fluid 7 passes through the small holes 6 due to the viscous resistance of the viscous fluid 7 inside the compartment 5a. Since it cannot move instantaneously to the adjacent compartment 5b, a large impact or vibration is applied to the vehicle body. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0028]
3A and 3B show a speed-sensitive slow acceleration device of the second embodiment, wherein FIG. 3A is a longitudinal front view, and FIG. 3B is a transverse side view. In the figure, reference numeral 15 denotes a hollow body, and the hollow bodies 15 are arranged one by one apart from each other in the vehicle width interval, and have a rectangular parallelepiped shape that is long in a direction perpendicular to the traveling direction of the vehicle.
[0029]
The hollow body 15 includes a lower member 16 made of an elastic sheet such as rubber and an upper member 17 made of an elastic housing such as rubber. A flange portion 17 a joined to the outer peripheral edge portion of the lower member 17 is provided on the outer peripheral edge portion of the upper member 16, and the flange portion 17 a is bonded or welded to the lower member 16.
[0030]
Further, a partition wall 18 is integrally provided in the upper member 17 with a predetermined interval in the longitudinal direction thereof, and a lower end surface thereof is bonded or welded to the upper surface of the lower member 16, and a plurality of compartments 19a to 19f are provided. Is formed. In addition, a small hole 20 that communicates with the adjacent compartments 19a to 19f is formed in the lower end portion of the partition wall 18.
[0031]
The compartments 19a to 19f are filled with viscous fluid 7 such as water and oil as in the first embodiment, the hollow body 15 receives a load from above, and the compartments 19a to 19f are pushed from above. When crushed, the viscous fluid 7 in the inside moves through the small holes 20 to the adjacent compartments 19a to 19f.
[0032]
Further, the flange portion 17a is provided with a plurality of mounting holes (not shown) penetrating the lower member 16 at predetermined intervals. And the fixing | fixed part which fixes the hollow body 15 with respect to the road surface 9 is formed by laying the hollow body 15 on the road surface 9, such as asphalt, and inserting the attachment bolt 10 into the attachment hole and screwing it into the road surface 9. .
[0033]
Next, the operation of the second embodiment will be described.
[0034]
A hollow body 15 is laid in a direction perpendicular to the traveling direction of the vehicle on the road surface 9 where the vehicle must slow down, such as at the entrance of the parking lot, immediately before the toll booth or before the pedestrian crossing in the housing complex. Are fixed by mounting bolts 10. In this state, when the vehicle travels slowly and the vehicle tire 11 rides on the hollow body 15, the portion stepped on by the tire 11, for example, the compartments 19 c and 19 d is compressed by the load from above, and the internal viscosity is increased. Since the fluid 7 passes through the small holes 20 and moves to the left and right compartments 19b and 19e, the compartments 19c and 19d that are stepped on by the tire 11 are crushed.
[0035]
Therefore, there is almost no step between the road surface 9 and the hollow body 15, and a large vibration or impact is not applied to the slowing vehicle. When the vehicle further travels slowly and passes through the hollow body 15, the collapsed compartments 19c and 19d are expanded and restored by the viscous fluid 7 introduced. Thus, since the tire 11 of the vehicle can advance while crushing the compartments 19a to 19f, the vehicle body is not subjected to vertical vibration, and the slow driving of the vehicle can be promoted.
[0036]
In addition, when the vehicle rides on the hollow body 15 without slowing down, even if the compartments 19a to 19f receive a load, the viscous fluid 7 passes through the small hole 20 due to the viscous resistance of the internal viscous fluid 7 and is adjacent. Since it cannot move instantaneously to the compartment, a large impact or vibration is applied to the vehicle body. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0037]
FIG. 4 shows a third embodiment. The speed-sensitive gradual acceleration device is formed in a flat plate shape by a viscoelastic body 21 made of low foamed sponge rubber. The flange portion 21a is integrally provided. A plurality of mounting holes (not shown) are formed in the flange portion 21a, and the viscoelastic body 21 can be fixed to the road surface 9 by inserting mounting bolts 22 into these mounting holes.
[0038]
Next, the operation of the third embodiment will be described.
[0039]
When the vehicle travels slowly and the tire 11 rides on the viscoelastic body 21, the portion stepped on by the tire 11 is crushed. When the vehicle further travels slowly, only the portion through which the tire 11 passes is crushed, and vehicular elasticity at this time can be promoted, and vertical vibrations are not applied to the vehicle.
[0040]
Further, when the vehicle rides on the viscoelastic body 21 without slowing down, a large impact is applied to the vehicle body by the viscoelastic repulsive force. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0041]
FIG. 5 shows a fourth embodiment, and the speed-sensitive gradual acceleration device is configured in a flat plate shape by a hollow body 24 having elasticity filled with a silicone bouncing putty 23. A flange portion 24 a as a fixed portion is integrally provided at a lower portion of the outer peripheral edge of the hollow body 24. A plurality of attachment holes (not shown) are formed in the flange portion 24a, and the hollow body 24 can be fixed to the road surface 9 by inserting attachment bolts 25 into these attachment holes.
[0042]
The silicone bouncing putty 23 is
(1) When stretched slowly, it stretches like a chickenpox (2) When hit with a hammer, it cracks like glass (3) When left unattended, it becomes gradually deformed and flattened (4) It is surprising that it bounces better than a rubber ball It had the power to go and then became known as the silicone bouncing putty. This silicone bouncing putty consists of siloxane containing boron atoms and interacts with oxygen atoms in the siloxane polymer as shown below.
[0043]
[Chemical 1]

[0044]
When a siloxane containing boron atoms deforms slowly, the system does not behave like a viscous fluid, and when it deforms quickly, it becomes a rigid body. FIG. 5 is a graph in which signals having different frequencies are applied to the silicone bouncing putty and the hardness at that time is observed. The horizontal axis represents frequency, the vertical axis represents hardness, and the temperature condition is 25 ° C.
[0045]
As shown in the graph of FIG. 6, the elastic modulus near 0.1 Hz is small. This means that the silicone bouncing putty is soft. As the frequency increases, the elastic modulus increases significantly. It turns out that it changed into the rigid behavior. Note that the elastic modulus of general silicone rubber does not change with the frequency in this region, as is apparent from the graph.
[0046]
Next, the operation of the fourth embodiment will be described.
[0047]
When the vehicle travels slowly and rides on the hollow body 24 filled with the silicone bouncing putty 23, the portion that is slowly stepped on by the tire 11 is crushed. When the vehicle further travels slowly, only the portion through which the tire 11 passes is crushed, and the vehicle can be slowly driven by viscoelastic resistance, so that the vehicle is not subjected to vertical vibration.
[0048]
Further, when the vehicle rides on the hollow body 24 filled with the silicone bouncing putty 23 without slowing down, the vehicle becomes rigid due to the properties of the silicone bouncing putty 23, so that a large impact is applied to the vehicle body. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0049]
In each of the above embodiments, the speed-sensitive slow acceleration device is configured in a rectangular shape that is long in the traveling direction of the vehicle or a rectangular shape that is long in the direction perpendicular to the traveling direction, and corresponds to the vehicle width interval of the vehicle with respect to the road surface. However, the present invention is not limited to this shape as long as it is a flat plate having a height (thickness) that the vehicle can ride on.
[0050]
【The invention's effect】
As described above , according to the first aspect, when the vehicle slows down and rides on the hollow body, the viscous fluid inside the compartment where the tire is stepped on moves to the adjacent compartment through the small hole. For this reason, the compartments treaded with tires are crushed. Therefore, even when the vehicle rides on the hollow body, vibration in the vertical direction is not applied, and the slow driving of the vehicle can be promoted.When the vehicle rides on the hollow body without slowing down, even if the compartment receives a load, A large impact is applied to the vehicle body because it cannot move to the adjacent compartment through a small hole due to the viscous resistance of the internal fluid. Therefore, slowing can be promoted in response to the speed of the vehicle.
[0053]
Therefore, by installing the speed-sensitive gradual acceleration device, for example, at the entrance of a parking lot, immediately before a toll booth, a crosswalk without a signal in a housing complex, or in a school zone, gradual acceleration is promoted to protect the safety of pedestrians, etc. be able to. Moreover, since it is only laid and fixed on the road surface, the construction is simple, and it is easy to cope with changes in the installation location, which is economical.
[Brief description of the drawings]
1A and 1B show a first embodiment of the present invention, in which FIG. 1A is a plan view, FIG. 1B is a longitudinal side view, and FIG.
FIG. 2 is a longitudinal side view showing the operation of the embodiment.
FIGS. 3A and 3B show a second embodiment of the present invention, wherein FIG. 3A is a longitudinal front view, and FIG. 3B is a transverse side view.
FIG. 4 is a partially cutaway side view showing a third embodiment of the present invention.
FIG. 5 is a partially cutaway side view showing a fourth embodiment of the present invention.
FIG. 6 is a graph showing the characteristics of the silicone bouncing putty of the same embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Hollow body 5a-5f ... Compartment 6 ... Small hole 7 ... Viscous fluid

Claims (1)

A hollow body made of an elastic body that is fixedly installed on the road surface and is crushed by its weight when stepped on by vehicle tires;
A partition wall provided at a predetermined interval inside the hollow body, and partitioning the interior of the hollow body into a plurality of compartments;
Viscous fluid filled in each compartment of the hollow body;
Provided in each partition wall, the compartments communicate with each other, and when the hollow body is stepped on and crushed by a tire of a slow vehicle, the viscous fluid is circulated to an adjacent compartment to vibrate the slow vehicle. Absorb,
When the hollow body is abruptly stepped on by a vehicle tire, the viscous fluid is controlled so that the viscous fluid is prevented from flowing to an adjacent compartment and an impact is applied to the vehicle. Holes,
A speed-sensitive slow acceleration device characterized by comprising:

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