JP2008014033A - Retractable car stop - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a retractable car stop easily carried and easily handled when broken. <P>SOLUTION: The retractable car stop is formed in portal shape from the front view with mutually parallel right and left side rod parts 3, 3, a lateral rod part 4 connecting the upper ends of the side rod parts, and leg parts 5, 5 extended from the lower ends of the side rod parts and retractable into erection holes 2, 2 provided in the ground, and all these parts are formed of hollow members made of an aluminum alloy. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a car stopper, and more particularly, to a pluggable car stopper.

  Conventionally, as a means for preventing the entry of a vehicle, a vehicle stop that is an obstacle to the entry of the vehicle is installed.

  As the commonly used car stopper, a car stopper having an insertion / removal configuration that normally prevents the vehicle from entering and allows the vehicle to enter when necessary is widely used.

  As shown in Patent Document 1 as an example of the shape, the above-described insertion / removal type car stopper is formed in a gate shape by bending a metal pipe material downwardly into a U-shape, and the lower leg portions of the left and right side flanges are provided on the ground. When the vehicle is allowed to enter the vehicle, it is pulled out of the mounting hole and removed, and carried to the specified storage location. It is made to store.

  Therefore, the conventional insertion / removal type car stoppers are made of iron or stainless steel, and usually have a thickness of about 2.8 to 3.0 mm and a diameter of 60.5 mm with a width of about 1 m and a height of about 0.9 m. It is used.

  However, the above-mentioned iron and stainless steel insertion / removal type car stops weigh about 13kg, and the number of items that can be carried by hand is at most two at a time, especially for elderly people and women. It becomes.

  Also, in a vast place, the number of car stops installed inevitably increases, and there is a problem that the removal work and installation work of these car stops are not easy and take time.

  On the other hand, when a vehicle collides with the above-mentioned car stopper and breaks, the iron or stainless steel car stop generally has an elongation rate of 23% or more for iron and 40% or more for stainless steel, so that the ductility is large. As shown in (A) and (B), the upper end opening edge of the erection hole a becomes an intersection b, and the leg portion c bends. At that time, the pipe material is crushed, the cross section is flattened, and the width is expanded. It is not easy to pull out the broken car stopper from the built-in hole a and remove it because it is crimped to the inner surface of the built-in hole a, and it cannot be handled by one person.

  Further, the conventional vehicle stop has a low thermal conductivity, so it is hot to carry with bare hands when exposed to direct sunlight during the day and is not easy to carry.

Furthermore, there is a problem that if the phone is dropped or knocked down while being carried, a high-pitched sound is generated, which is harsh and becomes a source of noise.
Utility Model Registration No. 3065895

  The present invention has an object to solve the problems of the above-described conventional insertion / removal type car stops. Ease of transportation, ease of removal work in case of breakage, reduction of noise generation, heat It is to improve the difficulty of carrying.

  In order to solve the above-described problems, the present invention is provided on the ground, extending to the left and right side flanges parallel to each other, the horizontal flange connecting between the upper ends of the side flanges, and the lower end of the side flanges. A leg part that can be freely inserted into and removed from the erection hole is formed in a frontal portal shape, and all of these are made to be an insertion / removal type car stopper by a hollow material made of aluminum alloy.

  An arm rest is provided at the center position of the recumbent part in order to make it easy to carry the insertion / removal type vehicle stopper and to bring out a design effect.

  One of them is that a pair of protrusions are provided on the lower surface of the center position of the lateral flange with a predetermined interval therebetween, and the side portions of the protrusions are used as arm rests.

  The other is that the center part of the recumbent part is bent so as to protrude downward, and the end part of the bent part is used as an arm rest.

  Still another one is to bend the central part of the recumbent part so as to protrude upward, and to use the inner corner of the end part of the bent part as an arm rest.

  According to the present invention, since the entire car stopper is made of an aluminum alloy, the weight of the car stopper is significantly reduced compared to a conventional steel car stopper, and the work at the time of installation and removal of the car stopper is remarkably facilitated, and the number that can be carried at one time is increased. Work efficiency can be greatly improved.

  In particular, since the vehicle stopper according to the present invention is made of an aluminum alloy having a small elongation rate, when the vehicle collides, the upper end opening edge portion of the built-in hole installed in the ground is bent to become a fulcrum. Therefore, the leg portion is not flattened, and therefore, it is prevented from being difficult to come out by being crimped to the inner peripheral surface of the mounting hole, and can be easily removed manually.

  In addition, since it is made of an aluminum alloy, it has a high thermal conductivity, so that even if it is exposed to direct sunlight, it does not feel intense heat when held by hand, and can be easily carried even with bare hands.

  Further, even if the vehicle stop is dropped or knocked down, no high-pitched sound is generated, which is preferable for noise countermeasures.

  On the other hand, if an arm rest is provided at the center position of the recumbent part, it can be safely carried in a stable posture without shifting by holding the arm rest against the arm rest when carrying the car stopper with the arm. The car stops in a novel form in terms of design, and the distinctive effect from other companies' products can also be revealed and given its uniqueness.

  In addition, a car stop that is beautifully bent into an arbitrary desired round shape can be obtained by annealing the bent corner portion of the side flange portion and the lateral flange portion and bending the same into a predetermined round shape.

  FIG. 1 shows a state in which the insertion / removal type car stopper 1 according to the present invention is pulled out from the mounting holes 2 and 2 provided on the ground, and FIG. 2 shows a state in which the car stopper 1 is erected in the building holes 2 and 2. Show.

  The vehicle stopper 1 extends to the left and right side flange portions 3 and 3 parallel to each other, the horizontal flange portion 4 connecting the upper ends of the side flange portions 3 and 3, and the lower ends of the side flange portions 3 and 3. The mounting holes 2 and 2 have leg portions 5 and 5 that can be inserted and removed, and are formed in a front portal shape, all of which are made of an aluminum alloy hollow material.

  The aluminum alloy hollow material is a pipe material having an outer diameter D = 40 to 110 mm and a wall thickness t = 3 to 5 mm, and preferably D = 60 to 110 mm. The aluminum alloy has an elongation of 15% or less, preferably an elongation of 6% to 15%, more preferably 8 to 10%. When the elongation rate is greater than 15%, the elongation rate is too large, and according to experiments, the degree of flattening of the legs exceeds the allowable range when bent. In addition, when the elongation rate is smaller than 6%, annealing treatment is performed in order to obtain a required round (R) at the continuous corner portions 6 and 6, but since the elongation rate is small, the required round (R) is set. This is because the annealing treatment necessary for obtaining the material is not easy.

  The elongation rate test here is in accordance with JIS Z2241. Moreover, the test piece is based on JIS * Z2201.

  The continuous corner portions 6 and 6 of the side flange portions 3 and 3 and the horizontal flange portion 4 are subjected to an annealing process of heating to 400 to 450 ° C. by a burner to remove the cooling and bending into a required round (R). Has been.

The elongation required for the bending process is
Elongation rate 12.7% when D = 42.7, R = 170
Elongation 19.9% when D = 60.5, R = 150
Elongation rate 19.1% when D = 76.3, R = 200
Elongation rate 20.1% when D = 101.6 and R = 250
It is.

  The construction holes 2 and 2 provided in the ground are configured by embedding a pipe material 7 such as a steel pipe in the ground, the periphery thereof is fixed by concrete 8, and the upper end opening edge of the pipe material 8 is substantially flush with the ground. It is said that.

  Therefore, if the leg portions 5 and 5 of the car stopper 1 are inserted vertically into the mounting holes 2 and 2, the left and right side flange parts 3 and 3 are held upright as shown in FIG. It will be a form to fulfill. When the leg portions 5 and 5 are pulled out from the erection holes 2 and 2, the car stopper 1 can be carried as a single unit as shown in FIG.

  At this time, the weight of the car stop 1 is about one-third that of a conventional steel car stop, and it is possible to carry five to six at a time at the same time, so that the work efficiency can be greatly improved. Can do.

  In the unlikely event that a vehicle collides with the standing car stopper 1 and is pushed down, the upper edge opening edge of the tube material 7 in which the side flanges 3 and 3 constitute the erected holes 2 and 2 serves as a fulcrum. When bending, as shown in FIG. 6 (C), it breaks so that it tears at the position of the upper end opening edge, and this prevents the leg 5 from being flattened. There is no problem that it will not be crimped to the inner peripheral surface and will not come out of the mounting holes 2, 2, and it can be pulled out easily.

  3 to 5 show an embodiment in which an operator can stably and safely support a car stopper 1 with his / her arm. It can also be mounted on a cart or the like.

  In the embodiment shown in FIG. 3, a pair of hemispherical protrusions 9, 9 are provided on the lower surface of the center position of the horizontal flange 4 with a predetermined interval between them. The side surface is an arm rest 10, and the arm rest 10 can be carried in a stable posture without moving the car stopper 1 by holding the arm rest 10 against the arm rest 10.

  In the embodiment shown in FIG. 4, the center portion of the horizontal flange portion 4 is bent so as to protrude downward in an arc shape, and the side portions of the bent portion 11 are arm rests 10 and 10.

  In the embodiment shown in FIG. 5, the center portion of the recumbent portion 4 is bent so as to bulge upward in the required length range, and both inner corners of the lower surface of the bent portion 12 are arm rests 10 and 10. Yes.

  Therefore, if the arm rests 10 and 10 are applied to support the car stopper 1 and carried, the car stopper 1 can be carried in a stable posture without being displaced in the middle, and it is easy to carry and the safety can be improved.

  Further, the shape of the arm rests 10 and 10 makes the design of an unprecedented car stop, so that it can be differentiated from competing products, and uniqueness can be achieved.

BRIEF DESCRIPTION OF THE DRAWINGS Basic embodiment of the insertion / extraction type vehicle stop by this invention is shown, (A) is a front view of a vehicle stop, (B) is sectional drawing of a erection hole. The front view which shows the state which inserted and installed the vehicle stop of FIG. 1 (A) in the erection hole of FIG. 1 (B). The front view which shows other embodiment of the insertion / extraction type vehicle stop by this invention. The front view which shows other embodiment same as the above. The front view which shows other embodiment same as the above. A state in which the vehicle collides with the car stop and is broken, (A) is a steel car stop, (B) is a stainless steel car stop, and (C) is a part schematically showing a car stop according to the present invention. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insertion-and-removal type | formula vehicle stopper 2 by this invention 3 Built-in hole 3 Side collar part 4 Horizontal collar part 5 Leg part 6 Continuous corner part 7 Tubing material 8 Concrete 9 Protrusion part 10 Arm rest 11, 12 Bending part

Claims (8)

  Left and right side flanges that are parallel to each other, a horizontal flange that connects between the upper ends of these side flanges, and leg portions that extend to the lower ends of the side flanges and that can be inserted into and removed from the built-in holes provided on the ground. An insertion / removal type vehicle stopper characterized in that it is formed in a frontal portal shape, and all these are made of an aluminum alloy hollow material.   The insertable / removable vehicle stop according to claim 1, wherein a pair of protrusions are formed on a lower surface of a center position of the horizontal flange with a predetermined interval therebetween, and the protrusions are used as arm rests.   The insertion / removal type vehicle stopper according to claim 1, wherein a central portion of the lateral flange portion is bent so as to protrude downward, and an end portion of the bent portion is an arm rest.   The insertion / removal type vehicle stopper according to claim 1, wherein the center portion of the recumbent portion is bent so as to protrude upward, and an inner corner of the bent portion is an arm rest.   The insertion / removal type vehicle stopper according to claim 1, wherein the aluminum alloy has an elongation of 15% or less.   The insertion / removal type vehicle stopper according to claim 5, wherein the aluminum alloy has an elongation percentage of 6% or more.   The pipe material made of an aluminum alloy has an outer diameter D of 40 to 110 mm and a wall thickness t of 2 to 5 mm.   The insertable / removable vehicle stop according to any one of claims 1 to 7, wherein the connecting corner portion of the side flange portion and the horizontal flange portion is annealed and bent into a predetermined radius.

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