JPH11188132A - Inner area edge stone device for track - Google Patents

Abstract

PROBLEM TO BE SOLVED: To smoothly perform the elevating and lowering operations of an edge stone member without generating twist at the part of vertical adjustment members in the case of operating the elevating and lowering movement of the edge stone member. SOLUTION: This device is composed of a base member 2, the plural vertical adjustment members 3 mounted between the plates 5 of the base member 2 and the edge stone member 4 formed horizontally long to be housed between the plates 5 of the base member 2 and supported by the vertical adjustment members 3 for selecting a lowered position to be housed inside the base member 2 and an elevated position to be projected to the upper part of the base member 2 by the vertical adjustment members 3. The vertical adjustment members 3 are formed by freely vertically movably holding an elevating and lowering cylinder 11 for supporting the edge stone member 4 at an upper end by an outer cylinder 10 and incorporating a locking mechanism for holding the pull-up position of the elevating and lowering cylinder 11 to the outer cylinder 10 in the inside of the elevating and lowering cylinder 11. The vertical adjustment members 3 are attached in a hung shape so as to be freely swingable in the length direction of the base member 2 between the plates 5 of the base member 2 and the generation of the twist is eliminated by the swing of the vertical adjustment members 3 at the time of the vertical movement of the edge stone member 4.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inner rim curb device for separating an inner periphery of a track and a field of an athletic stadium, and more particularly, to a vertically adjustable curb member. The present invention relates to an inner rim curb device that can be placed underground so that the stadium can be effectively used in accordance with the content of the game.

[0002]

2. Description of the Related Art In an athletic stadium where a track competition is conducted, a curb member having a height and a width of about 5 cm is laid along an inner periphery of the track in order to separate a track and a field.

[0003] If the inner rim curb member is fixed to the ground, it will hinder the effective use of the stadium during non-track competitions. At other times, there is proposed an inner curb device for a truck which allows the curb member to be immersed in the ground.

A conventional inner sphere curb device is formed to have a base member having a horizontally long plate opposed thereto, a plurality of up-and-down adjustment members mounted between the base member plates, and a horizontally long shape to fit between the base member plates. Supported by the up / down adjustment member, the up / down adjustment member is composed of a curb member whose down position that fits in the base member and an up position that protrudes above the base member are selected.
An elevating cylinder supporting the curb member at the upper end is vertically movably held by an outer cylinder, and a locking mechanism for holding a lifting position of the elevating cylinder with respect to the outer cylinder is incorporated inside the elevating cylinder. Is fixed between the plates of the base member.

[0005] In this inner rim curb device, the curb member is raised to a raised position during a track game, and is held by a locking mechanism so as to protrude above the ground. The locking mechanism is unlocked and the curb member is immersed in the ground.

[0006]

By the way, since the curb member has a length of about 2 m and a plurality of vertical adjusting members are fixed to the base member, the raising and lowering operation of the curb member is controlled by the vertical adjusting operation. It is necessary to move horizontally along the axis of the member, but when the long curb member is held by two workers for lifting and lowering operation, the operation at both ends is synchronized and the curb member is It is almost impossible to move the curb member horizontally, which causes a problem in that the vertical adjustment member is twisted, and the curb member cannot be moved up and down smoothly.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a vertical movement member for a curb member which does not synchronize, even if the operation at both ends is not synchronized. It is an object of the present invention to provide an inner rim curb device for a truck that can perform a moving operation smoothly.

[0008]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is directed to a base member in which horizontally long plates are opposed to each other, and a plurality of base members mounted between the plates of the base member. A vertically-adjusting member and a horizontally-long portion formed between the plates of the base member and supported by the up-and-down adjusting member. The vertical adjustment member holds the lifting cylinder supporting the curb member at the upper end so as to be vertically movable with an outer cylinder, and the lifting position of the lifting cylinder with respect to the outer cylinder is inside the lifting cylinder. The vertical adjustment member is mounted between the plates of the base member in a suspended manner so as to be swingable in the length direction of the base member. It is intended.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in the drawing, a track inner curb device 1 for a truck
Is a base member 2 embedded in the ground, and the base member 2
It is composed of a plurality of up-down adjustment members 3 mounted in the inside, and a curb member 4 supported by the up-down adjustment members 3 and in which a state of being accommodated in the base member 2 and a state of protruding above the base member 2 are selected. .

The base member 2 has a pair of horizontally long plates 5 and 5 connected to each other by a bottom member 6 so as to provide a predetermined space between the opposing surfaces of the plates 5 and 5, and a lower surface of the bottom member 6. A base plate 7 is fixed to both ends and an intermediate portion, leveling bolts 8 are provided at both ends of the base plate 7, and a joint plate 9 is protruded from one end of the plates 5 and 5.

The curb member 4 has, for example, a width of 5 cm and a height of 3c.
The base member 2 is formed by using a square pipe having a length of about 2 m, and the gap between the opposing surfaces of the plates 5 of the base member 2 is such that the width of the curb member 4 can be accommodated. Note that, for the curved portion of the track, the base member 2 and the curb member 4 used are curved.

The up-and-down adjusting member 3 includes a rectangular outer cylinder 10 that is fitted between the opposing surfaces of the plates 5, 5, a rectangular elevating cylinder 11 that is accommodated in the outer cylinder 10 and that can move up and down, and an elevating cylinder 11. And the elevating cylinder 11 with respect to the outer cylinder 10
And a locking mechanism 12 for holding the lifting position of the base member 2.
3 is fixed in an outer fitting shape.

The above-mentioned locking mechanism 12 has a pin 14 provided at an upper part of the outer cylinder 10 at a position deviated to one side, and a vertically long hole 15 for releasing the pin 14 is provided on the opposing surface of the elevating cylinder 11. A pivot piece 12a is rotatably pivoted at the center of the upper and lower surfaces of the elevating cylinder 11 and the upper surface of the outer cylinder 10.
Slots 16 and 17 are provided so that the ends of the slots can protrude to the outside.
And a pin 18 for operating the same is provided.

The locking piece 12a has a shape in which both ends in the longitudinal direction of a rectangular plate are cut into a V-shape. And the pin 18 acts to lock and release the lifting cylinder 11 with respect to the outer cylinder 10.

As shown in FIG. 2, the vertical adjustment member 3 is provided with a laterally L-shaped notch 20 opened at the lower edge on both side walls 19 of the mounting member 13 having a U-shaped cross section. By inserting the notch 20 into the support shafts 21 and 21 provided on the opposing surfaces of the plates 5 and 5,
With the support shafts 21 and 21 as fulcrums, the outer cylinder 10 is suspended and supported so as to be swingable in the length direction of the base member 2. The base member 2 is provided with pins 22, 22 for restricting the swing angle of the outer cylinder 10 to be constant at positions on both sides below the mounting member 13.

A plurality of vertical adjustment members 3 are mounted along the length direction inside the base member 2, and a curb member 4 is fixed to an upper end of the elevating cylinder 11 in each of the vertical adjustment members 3. The curb member 4 is arranged along the length direction of the member 2 and has a length substantially equal to that of the base member 2.

The curb member 4 is fixed to the upper end of the elevating cylinder 11 by fixing an upwardly-U-shaped mounting bracket 23 to the lower surface of the curb member 4, and as shown in FIG.
Four of the base members 2 are mounted at equal intervals in the length direction, and in the illustrated case, the notch 20 of each of the upper and lower adjustment members 3 is
The base members 2 are arranged so that their directions are opposite to each other with respect to the center of the base member 2 so as to prevent the base members 2 from being detached from the support shafts 21 at the time of swinging.
Even if the direction of 0 is arranged in the same direction, there is no hindrance to the vertical movement operation of the curb member 4.

When the vertical adjustment member 3 is in the contracted state, the curb member 4 is in the lowered position, is accommodated inside the base member 2 and its upper surface is substantially flush with the ground line, and the vertical adjustment member 3 is in the extended state. At this time, the curb member 4 is in the raised position, protrudes upward from the upper edge of the base member 2, and protrudes about 5 cm from the ground line including the mounting bracket 23.

The inner rim curb device of the present invention is configured as described above, and excavates a groove having a width and a depth for accommodating the base member 2 along an inner periphery of a track of an athletics stadium. After the base members 2 are placed and connected sequentially, leveling is performed so that the upper end of the base member 2 is substantially flush with the ground line, and concrete is poured into the spaces of the grooves on both sides of the base member 2. Then, the base member 2 is fixed in the ground. At this time, the base plate 7, the leveling bolt 8, and the like serve as anchors.

A plurality of vertically adjusting members 3 are mounted inside the base member 2 by hanging them on the support shafts 21, 21.
By fixing the curb member 4 to the upper end of the elevating cylinder 11 of each of the vertical adjusting members 3, the curb members 4 are sequentially arranged along the inner periphery of the truck.

In the above state, the outer cylinder 1 of each up-and-down adjustment member 3
0 can swing along the length direction of the base member 2 and the curb member 4.

In the case of a track competition, as shown in FIG. 4, the curb member 4 is lifted up and protruded above the ground line so as to separate the track and the field along the inner circumference of the track. In other cases, as shown in FIG. 3, the curb member 4 is lowered to be immersed in the ground line.

FIGS. 3, 4 and 6 show the operation of the locking mechanism 12 when the curb member 4 is moved up and down.

When the curb member 4 is in the lowered position, the
As shown in the figure, the elevating cylinder 11 is accommodated in the outer cylinder 10, the upper end of the long hole 15 approaches the pin 14, and the locking piece 12a is in a vertical posture.

When the curb member 4 is lifted in this state, the elevating cylinder 11 also rises integrally as shown in FIG.
Is lifted to the highest position, as shown in FIG. 6B, the pin 18 of the elevating cylinder 11 contacts the lower end of the locking piece 12a, and the locking piece 12a is rotated counterclockwise in FIG. When the curb member 4 is slightly lowered in this state, the upper end of the long hole 16 is lowered by lowering the elevating cylinder 11 as shown in FIG. 6C. As a result, the end of the locking piece 12a is pushed down, so that the end of the locking piece 12a is pressed against the inner surface of the elevating cylinder 11 so as to bite into the locked state.
As shown in FIG. 5, the state where the curb member 4 is projected above the ground line is maintained.

Next, to move the curb member 4 to the lowered position,
When the lifting cylinder 11 is raised to the highest position as shown in FIG. 6D, the pin 18 of the lifting cylinder 11 comes into contact with the side surface of the locking piece 12a, and the locking piece 12a is rotated counterclockwise in FIG. When the curb member 4 is lowered in this state, the upper end of the long hole 16 pushes down the end of the locking piece 12a. As shown in FIG. 3, the locking piece 12a is in a vertical position and the locking is released, so that the lifting cylinder 11 descends in the outer cylinder 10 and the curb member 4 is accommodated in the base member 2. .

The vertical movement of the curb member 4 as described above is performed as follows.
The operator carries both ends of the curb member 4,
If the up and down operation at both ends is not synchronized during the up and down operation, the outer cylinders 10 of the up and down adjustment members 3 swing about the support shafts 21 and 21 with respect to the inclination of the curb member 4, and the outer cylinder 10
And the raising and lowering cylinder 11 are prevented from being twisted.
The long curb member 4 can be moved up and down smoothly.

FIG. 7 shows another embodiment of the locking piece 12a of the locking mechanism 12 incorporated inside the vertical adjustment member 3. The basic operation of the locking piece 12a is the same as that shown in FIGS. 3 to 6, except that the angle of the V-shaped cut portion provided at both ends in the longitudinal direction of the rectangular plate is reduced and the V-shaped A stepped portion 12b is provided at a portion where the inclined surfaces of the cut portion are gathered along the length direction of the locking piece 12a.
And the load supporting strength when the elevating cylinder 11 is held in the extended state.

That is, when the outer cylinder 10 and the elevating cylinder 11 are held in the extended state, the upper edge of the long hole 16 of the elevating cylinder 11 is
2b, the inclined surface of the V-shaped cut portion is pressed against the inner surface of the elevating cylinder 11 in a surface contact state, and the elevating cylinder 11 is supported in such a surface contact state.
The load supporting strength of the locking pieces 12a is greatly improved, and even if a person gets on the curb member 4, damage to the locking mechanism 12 and damage to the elevating cylinder 11 can be reliably prevented. There is.

[0031]

As described above, according to the present invention, the base member, the plurality of up / down adjustment members mounted between the plates of the base member, and the up / down adjustment member support the base member. The curb member is selected from a lowering position that fits in the member and a rising position that projects above the base member, and the up-and-down adjusting member allows the elevating cylinder that supports the curb member at the upper end to be vertically movable with an outer cylinder. A holding mechanism for holding and holding the lifting position of the elevating cylinder with respect to the outer cylinder is formed inside the elevating cylinder, and the up / down adjusting member is swingable between the plates of the base member in the longitudinal direction of the base member. Since it was attached in a hanging shape so that there was no occurrence of twisting with the vertical adjustment member during vertical movement operation of the curb member,
The curb member can be moved up and down smoothly, and the up-and-down moving type inner curb device can be put to practical use.

[Brief description of the drawings]

1A is a plan view showing an inner curb device of a truck, and FIG.

FIG. 2 is an exploded perspective view showing an inner curb device of a truck.

FIG. 3 is a longitudinal sectional view showing a state in which a curb member of the inner sphere curb device is lowered.

FIG. 4 is a longitudinal sectional view showing a state in which a curb member of the inner sphere curb device is raised.

FIG. 5 is a longitudinal side view showing a state in which a curb member of the inner sphere curb device is raised.

FIGS. 6A to 6D are longitudinal sectional views showing the operation of a vertical adjustment member.

7A is a longitudinal sectional view showing another embodiment of the vertical adjustment member, and FIG. 7B is a perspective view of a locking piece used in the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Inner sphere curb device 2 Base member 3 Vertical adjustment member 4 Curb member 5 Plate 10 Outer cylinder 11 Elevating cylinder 12 Locking mechanism 12a Locking piece 21 Support shaft

Claims (1)

[Claims] 1. A base member having a horizontally long plate opposed thereto, a plurality of up / down adjustment members mounted between the base member plates, and a horizontally long plate formed between the base member plates and supported by the up / down adjustment member. The vertical adjustment member includes a curb member whose lower position is accommodated in the base member and a curb member that is selected to be in a raised position protruding above the base member. The vertical adjustment member supports the curb member at the upper end. The elevating cylinder is vertically movably held by the outer cylinder, and a locking mechanism for holding the lifting position of the elevating cylinder with respect to the outer cylinder is incorporated inside the elevating cylinder.The vertical adjusting member is provided between the plates of the base member. An inner curb device for a truck mounted in a suspended manner so as to be swingable in the length direction of the base member.