JP2018053423A - Slope device - Google Patents

Slope device Download PDF

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JP2018053423A
JP2018053423A JP2016186501A JP2016186501A JP2018053423A JP 2018053423 A JP2018053423 A JP 2018053423A JP 2016186501 A JP2016186501 A JP 2016186501A JP 2016186501 A JP2016186501 A JP 2016186501A JP 2018053423 A JP2018053423 A JP 2018053423A
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slope
slope member
leg
mounting
bracket
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JP6827750B2 (en
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滋 二塚
Shigeru Futatsuka
滋 二塚
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Aisin Keikinzoku Co Ltd
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Aisin Keikinzoku Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a slope device with a leg portion having strong supporting strength by slope members, which can storage a plurality of slope devices in a stacked manner.SOLUTION: The slope device comprises a slope member and a foldable leg portion at a rear end portion of the slope member, the slope member has a mounting portion at a rear end portion thereof, and a mounting bracket is fixed to the mounting portion, and right and left end portions of the mounting bracket are axially located at a support bracket. When using the device, the leg portion is stood on the rear surface side of the slope member, and the leg portion extends rearward of the slope member during storage.SELECTED DRAWING: Figure 1

Description

本発明は、スロープ面を形成するためのスロープ部材を傾斜状態に支持するための脚部を折り畳み可能に備えたスロープ装置に係る。   The present invention relates to a slope device that is foldable with legs for supporting a slope member for forming a slope surface in an inclined state.

例えば特許文献１に、スロープ面を傾斜状態で安定させるのに、使用時にスロープ面の裏面側から脚部を起立状態に回動させるスロープ装置を開示する。
しかし、同公報に開示する脚部構造は、大型になりやすく、複数のスロープ部材を積み重ねるように収納する際には、脚部がその障害になる恐れがあった。 For example, Patent Document 1 discloses a slope device that rotates a leg portion in an upright state from the back surface side of a slope surface during use in order to stabilize the slope surface in an inclined state.
However, the leg structure disclosed in the publication is likely to be large, and there is a possibility that the leg part becomes an obstacle when the plurality of slope members are stored in a stacked manner.

特開２００６−１２３６６１号公報JP 2006-123661 A

本発明は、脚部によるスロープ部材の支持強度が強く、複数のスロープ装置を積み重ねるように収納可能なスロープ装置の提供を目的とする。   An object of the present invention is to provide a slope device that has a strong support strength of a slope member by a leg portion and can be stored so as to stack a plurality of slope devices.

本発明に係るスロープ装置は、スロープ部材と、前記スロープ部材の後端部に折り畳み可能な脚部とを備え、前記スロープ部材は後端部に取付部を有し、前記取付部に取付ブラケットを固定してあり、前記取付ブラケットの左右端部を前記脚部に設けた支持ブラケットに軸着してあり、使用時は前記脚部を前記スロープ部材の裏面側に起立状態にし、収納時は前記脚部を前記スロープ部材の後方に延在させるものであることを特徴とする。
本明細書では、傾斜したスロープ面を形成した場合に下段側、例えば路面，地面等に接地する側を前方と表現する。
本発明においてスロープ装置を使用する際には、脚部をスロープ部材の裏面側に起立させて、スロープ面の上段側を支持することになる。
収納する際には、スロープ装置の脚部をスロープ部材の後方側にスロープ面に沿って略水平に延在するように折り畳むことになる。
よって、収納時には、例えば図１（ｃ）に示すようにスロープ部材と脚部とが概ねフラット状態になる。 A slope device according to the present invention includes a slope member and a leg portion that can be folded at a rear end portion of the slope member, and the slope member has an attachment portion at a rear end portion, and an attachment bracket is provided at the attachment portion. It is fixed, and the left and right ends of the mounting bracket are pivotally attached to a support bracket provided on the leg, and when in use, the leg is raised on the back side of the slope member, and when stored, the The leg portion extends behind the slope member.
In this specification, when an inclined slope surface is formed, the lower side, for example, the side that contacts the road surface, the ground, or the like is expressed as the front.
When the slope device is used in the present invention, the leg portion is erected on the back surface side of the slope member to support the upper side of the slope surface.
When storing, the leg part of the slope device is folded so as to extend substantially horizontally along the slope surface on the rear side of the slope member.
Therefore, at the time of storage, for example, as shown in FIG. 1C, the slope member and the leg are substantially flat.

本発明において、取付ブラケットは、前記スロープ部材の取付部の表側に固定してあり、使用時は前記取付ブラケットと前記支持ブラケットの間に前記スロープ部材の取付部が位置するものであってよい。
このようにすると、使用時にはスロープ部材の取付部が取付ブラケットと支持ブラケットとの間に挟まれたサンドイッチ構造になるので、スロープ部材と脚部との連結部の強度，剛性向上を図ることができる。 In the present invention, the mounting bracket may be fixed to the front side of the mounting portion of the slope member, and the mounting portion of the slope member may be positioned between the mounting bracket and the support bracket when in use.
In this way, when used, the slope member mounting portion is sandwiched between the mounting bracket and the support bracket so that the strength and rigidity of the connecting portion between the slope member and the leg portion can be improved. .

本発明において、スロープ部材はパネル体と、前記パネル体の通路方向端部に沿って設けたレール部を有し、使用時には前記支持ブラケットの上面が前記レール部の下部に廻り込むものであってよい。
ここでパネル体は、スロープ面を形成したものであって、１つのパネル材に限定されるものではなく、複数の部材を連結してスロープ面を形成してもよい。
レール部は、パネル体の通路方向のサイドに沿ってこのパネル体に固定することで、スロープ面の剛性を向上させるための部材である。
このレール部は、脱輪防止等を目的としたスロープ面からの立上げ部を有してもよい。
このように、スロープ装置の使用時にスロープ部材の取付部の裏面を支持する支持ブラケットが同時にレール部の後方側端部を下側から支えることになり、スロープ部材の支持剛性が向上する。
この場合に、取付ブラケットと支持ブラケットの軸着部回転中心は前記脚部の前後方向の起立中心線に対して後方側にオフセットさせてあるのが好ましい。
このようにすると、スロープ面を形成するパネル体の下面と支持ブラケットとの間の隙を小さくすることができ、スロープ面に加わる負荷を直接的に脚部に伝達させることができる。 In the present invention, the slope member has a panel body and a rail portion provided along an end in the passage direction of the panel body, and the upper surface of the support bracket wraps around the lower portion of the rail portion when in use. Good.
Here, the panel body is formed with a slope surface and is not limited to a single panel material, and a slope surface may be formed by connecting a plurality of members.
A rail part is a member for improving the rigidity of a slope surface by fixing to this panel body along the side of the passage direction of a panel body.
The rail portion may have a rising portion from a slope surface for the purpose of preventing wheel removal and the like.
Thus, the support bracket that supports the back surface of the attachment portion of the slope member simultaneously supports the rear end of the rail portion from the lower side when the slope device is used, and the support rigidity of the slope member is improved.
In this case, it is preferable that the pivoting center rotation center of the mounting bracket and the support bracket is offset backward with respect to the standing center line in the front-rear direction of the leg portion.
If it does in this way, the clearance gap between the lower surface of the panel body which forms a slope surface, and a support bracket can be made small, and the load added to a slope surface can be transmitted to a leg part directly.

本発明は、スロープ面に加わる負荷を支持ブラケットを介して脚部にて支えるので、取付ブラケットと支持ブラケットは前記スロープ部材の取付部の強度よりも強く設定することでスロープ部材を軽くでき、アルミ製，樹脂製にすることもできる。   In the present invention, the load applied to the slope surface is supported by the leg portion via the support bracket. Therefore, the slope of the slope member can be reduced by setting the mounting bracket and the support bracket stronger than the strength of the attachment portion of the slope member. It can also be made of resin or resin.

本発明におけるスロープ装置は、スロープ部材の取付部に取付ブラケットを固定するとともに、この取付ブラケットの両端部を支持ブラケットにて回転自在に軸着したことにより、図１（ａ），（ｂ）に示すようにスロープ装置の使用時には脚部をスロープ部材の裏面側に回動し、起立状態にすると取付ブラケットと支持ブラケットの間にスロープ部材の取付部が挟み込まれるようなサンドイッチ構造になるので、支持部の強度が高い。
また、収納時には図１（ｃ）に示すように、脚部をスロープ部材の後方に向けて略水平に折り畳むことができる。 In the slope device according to the present invention, the mounting bracket is fixed to the mounting portion of the slope member, and both end portions of the mounting bracket are rotatably mounted by the support bracket. As shown in the figure, when using the slope device, the leg part is turned to the back side of the slope member, and when it is in the standing state, it becomes a sandwich structure in which the attachment part of the slope member is sandwiched between the attachment bracket and the support bracket. The strength of the part is high.
Moreover, at the time of accommodation, as shown in FIG.1 (c), a leg part can be folded substantially horizontally toward the back of a slope member.

本発明に係るスロープ装置の外観図を示し、（ａ），（ｂ）は使用状態、（ｃ）は折り畳み収納状態を示す。The external view of the slope apparatus which concerns on this invention is shown, (a), (b) is a use condition, (c) shows a folding storage state. 脚部付近の拡大図を示し、（ａ）は使用状態、（ｂ）は収納状態を示す。The enlarged view near a leg part is shown, (a) shows a use state, (b) shows a storage state. スロープ装置の分解図を示す。The exploded view of a slope apparatus is shown. 分解図における脚部付近の拡大図を示す。The enlarged view of the leg part vicinity in an exploded view is shown. 脚部のスロープ部材への連結手順を示し、（ａ）はスロープ部材の取付部に取付ブラケットをリベットで固定する状態、（ｂ）は取付ブラケットを脚部の支持ブラケットに段付リベットを用いて回転自在に連結する状態を示し、（ｃ）は組付完了状態を示す。The connection procedure of the leg part to the slope member is shown, (a) is a state in which the mounting bracket is fixed to the attachment part of the slope member with a rivet, and (b) is a step using a stepped rivet for the support bracket of the leg part. The state which connects rotatably is shown, (c) shows an assembly completion state. スロープ部材と脚部との連結部の断面図を示す。Sectional drawing of the connection part of a slope member and a leg part is shown. 脚部の折り畳み手順を示し、（ａ）に示すように脚部を水平方向に回動すると、保持アームの基部２３ｂが連結ブラケット２４のスライド部２４ａに沿ってスライドし、保持される。A procedure for folding the leg portion is shown. When the leg portion is rotated in the horizontal direction as shown in (a), the base portion 23b of the holding arm slides and is held along the slide portion 24a of the connecting bracket 24. 本発明に係るスロープ装置の使用例を示し、（ａ）はスロープ装置の後方に他のスロープ部材をつなぐ例を示し、（ｂ）は複数のスロープ装置を並設する例を示す。The usage example of the slope apparatus which concerns on this invention is shown, (a) shows the example which connects another slope member to the back of a slope apparatus, (b) shows the example which arranges several slope apparatus in parallel.

本発明に係るスロープ装置の構造例を以下図に基づいて説明する。
図１にスロープ装置の使用状態と、収納（折り畳み）状態を示し、脚部付近の拡大図を図２に、分解図を図３，図４に示す。 A structural example of the slope device according to the present invention will be described below with reference to the drawings.
FIG. 1 shows a use state and a storage (folding) state of the slope device. FIG. 2 is an enlarged view of the vicinity of the leg portion, and FIGS. 3 and 4 are exploded views.

本発明に係るスロープ装置は、スロープ部材１０の後端部に回動可能な脚部２０を連結してある。
スロープ部材１０は１つのスロープでもよく、図１にはスロープ１０Ａ，１０Ｂがスライド伸縮する例を示す。
例えば、図３に示すようにパネル体１１Ａとその両側の通路方向に沿った端部に取り付けたレール部１３，１４からなり、パネル体１１Ａの後端部にプレート状の取付部１２を形成してある。
また、パネル体１１Ａ，１１Ｂは一枚の部材に限定されるものでなく、複数の部材を連結してパネル体としてもよい。
レール部１３，１４は、パネル体１１Ａの剛性アップを目的としたものであり、例えばレール部１３にて説明すると、パネル体１１Ａの端部を上下一対のつば部で形成した溝部に嵌合させたレール本体部１３ａと、このレール本体部１３ａから立設した脱輪防止用の立上げ部１３ｂを形成した例になっている。
後述するように、例えば複数のスロープ部材１０をレール部を介して折り畳み可能に左右方向に連結する場合には、立上げ部１３ｂの無いレール部を用いる。
また、本実施例では、パネル体１１Ａ及び取付部１２，レール部１３，１４をアルミニウム合金にて製作した例となっている。 In the slope device according to the present invention, a rotatable leg portion 20 is connected to the rear end portion of the slope member 10.
The slope member 10 may be one slope, and FIG. 1 shows an example in which the slopes 10A and 10B slide and extend.
For example, as shown in FIG. 3, a panel body 11A and rail sections 13 and 14 attached to the end portions along the passage direction on both sides thereof are formed, and a plate-like mounting portion 12 is formed at the rear end portion of the panel body 11A. It is.
The panel bodies 11A and 11B are not limited to a single member, and a plurality of members may be connected to form a panel body.
The rail portions 13 and 14 are for the purpose of increasing the rigidity of the panel body 11A. For example, the rail portion 13 will be described by fitting the end of the panel body 11A into a groove formed by a pair of upper and lower flange portions. This is an example in which a rail main body portion 13a and a rising portion 13b for preventing the wheel from escaping from the rail main body portion 13a are formed.
As will be described later, for example, when connecting a plurality of slope members 10 in the left-right direction so as to be foldable via the rail portion, a rail portion without the rising portion 13b is used.
In this embodiment, the panel body 11A, the mounting portion 12, and the rail portions 13 and 14 are made of an aluminum alloy.

取付ブラケット２２は、スチール製で略コ字形状に形成した例になっている。
取付ブラケット２２は、ベース部２２ａとその左右端部を上方に折り曲げて形成したヒンジ部２２ｂからなり、このヒンジ部に軸孔２２ｃを設けてある。
ベース部２２ａには、固定孔２２ｄ，２２ｄを設け、スロープ部材１０の取付部１２の固定孔１２ａ，１２ａに表面（上側）からリベット２２ｅ，２２ｅを用いて固定する。
その状態を図５（ａ），（ｂ）に示す。 The mounting bracket 22 is made of steel and is formed in a substantially U shape.
The mounting bracket 22 includes a base portion 22a and a hinge portion 22b formed by bending the left and right end portions upward, and a shaft hole 22c is provided in the hinge portion.
The base portion 22a is provided with fixing holes 22d and 22d, and is fixed to the fixing holes 12a and 12a of the attachment portion 12 of the slope member 10 from the surface (upper side) using rivets 22e and 22e.
The state is shown in FIGS. 5 (a) and 5 (b).

脚部２０は、取付ブラケット２２の左右端部と軸着する支持ブラケット２１を有し、この支持ブラケット２１は左右一対の支柱脚２１ｄの上端部に固定連結し、本実施例では支柱脚２１ｄの下端側を接地部２１ｅにて連結してある。
支持ブラケット２１は、左右両側の端部から支持ヒンジ部２１ａ，２１ａを立設し、この支持ヒンジ部２１ａ，２１ａに軸孔２１ｂ，２１ｂを形成してある。
図５（ｂ），（ｃ）に示すように、取付ブラケット２２の軸孔２２ｃと支持ブラケット２１の軸孔２１ｂとを合せ、段付きの取付リベット２１ｃを用いて回転可能に軸着する。
この際に、図６に示すように軸孔による脚部の回転中心Ｏが脚部の支柱脚２１ｄの前後方向の中心線Ｃに対して、使用状態で後方に寸法ｄ１だけオフセットさせてある。
これにより、使用時には取付ブラケット２２と支持ブラケット２１との間にスロープ部材の取付部１２が挟み込まれるようにスロープ部材を支持することになるとともに、スロープ部材１０のレール部の後方先端部の下部１３ｃの下側に廻り込むように、支持ブラケット２１の上面が位置することになる。
また、スロープ面を形成するパネル体１１Ａの下面１１ｂと、支持ブラケット２１の上面とのスキｄ２も僅かになる。 The leg portion 20 has a support bracket 21 that is pivotally attached to the left and right end portions of the mounting bracket 22, and this support bracket 21 is fixedly connected to the upper end portions of a pair of left and right support column legs 21d. The lower end side is connected by the grounding part 21e.
The support bracket 21 has support hinge portions 21a and 21a erected from both left and right ends, and shaft holes 21b and 21b are formed in the support hinge portions 21a and 21a.
As shown in FIGS. 5B and 5C, the shaft hole 22c of the mounting bracket 22 and the shaft hole 21b of the support bracket 21 are aligned and rotatably mounted using a stepped mounting rivet 21c.
At this time, as shown in FIG. 6, the rotation center O of the leg portion due to the shaft hole is offset backward by the dimension d 1 in the use state with respect to the center line C in the front-rear direction of the support leg 21d of the leg portion. .
As a result, the slope member is supported so that the attachment portion 12 of the slope member is sandwiched between the attachment bracket 22 and the support bracket 21 during use, and the lower portion 13c of the rear tip portion of the rail portion of the slope member 10 is supported. The upper surface of the support bracket 21 is positioned so as to go around to the lower side.
Further, the skid 2 between the lower surface 11b of the panel body 11A forming the slope surface and the upper surface of the support bracket 21 is also small.

本実施例では、この状態を保持するのにパネル体１１Ａの下面と支柱脚２１ｄとの間に、略コ字形状の保持アーム２３を配設してある。
保持アーム２３のコ字形状の基部２３ｂ側を、パネル体１１Ａの下面に取り付けた連結ブラケット２４のスライド部２４ａにスライド可能に取り付けてある。
一方、保持アームの両側のアーム端部２３ａを脚部２０の左右の支柱脚２１ｄの内側の保持孔に差し込み、回動連結してある。
連結ブラケット２４のスライド部２４ａの両端部付近には、保持凹部２４ｂ，２４ｃを形成し、この保持凹部に保持アーム２３の基部２３ｂが入り込むことで、図７に示すように脚部の起立状態と水平状態を保持する。
保持アームは、脚部の起立状態と水平方向の収納状態をそれぞれ保持するためのものであり、保持構造はこれに限定されない。 In this embodiment, a substantially U-shaped holding arm 23 is disposed between the lower surface of the panel body 11A and the support leg 21d to hold this state.
The U-shaped base portion 23b side of the holding arm 23 is slidably attached to a slide portion 24a of a connection bracket 24 attached to the lower surface of the panel body 11A.
On the other hand, the arm end portions 23a on both sides of the holding arm are inserted into the holding holes inside the left and right column legs 21d of the leg portion 20, and are pivotally connected.
Holding recesses 24b and 24c are formed in the vicinity of both end portions of the slide portion 24a of the connecting bracket 24, and the base 23b of the holding arm 23 enters the holding recess, so that the leg portion is in an upright state as shown in FIG. Keep horizontal.
The holding arm is for holding the standing state of the leg and the storage state in the horizontal direction, and the holding structure is not limited to this.

本発明に係るスロープ装置は、単独で用いることができることは言うまでもないが、図８に示すように他のスロープ装置と組み合せ、あるいは一体化して使用することもできる。
図８（ａ）は、他のスロープ部材１の先端部をスロープ部材１０の取付部１２に載置し、後方側に連続的にスロープ面を形成することができる。
図８（ｂ）は、スロープ部材１０のレール本体部１３ａに沿って、他のスロープ装置２を１つ又は複数連結して使用する例である。
複数のパネル体をレール本体部１３ａを介して相互に折り畳み可能に連結した場合に、脚部を使用状態にしたままでは積み重ねたり、パネル体同士が重なるように折り畳むことができないが、本発明では脚部を水平方向に折り畳むことができるので、積み重ねたり、パネル体同士が重なるように折り畳むことができる。 Needless to say, the slope device according to the present invention can be used alone, but can also be used in combination with or integrated with other slope devices as shown in FIG.
In FIG. 8A, the tip portion of the other slope member 1 can be placed on the attachment portion 12 of the slope member 10, and a slope surface can be continuously formed on the rear side.
FIG. 8B is an example in which one or a plurality of other slope devices 2 are connected and used along the rail body portion 13 a of the slope member 10.
When a plurality of panel bodies are connected so as to be foldable with each other via the rail body portion 13a, they cannot be stacked or folded so that the panel bodies overlap with each other while the legs are in use, Since the legs can be folded horizontally, they can be stacked or folded so that the panel bodies overlap.

１０ スロープ部材
１１Ａ パネル体
１２ 取付部
１３ レール部
１４ レール部
２０ 脚部
２１ 支持ブラケット
２１ｄ 支柱脚
２１ｅ 接地部
２２ 取付ブラケット
２３ 保持フレーム
Ｃ 起立中心線
Ｏ 回転中心 DESCRIPTION OF SYMBOLS 10 Slope member 11A Panel body 12 Mounting part 13 Rail part 14 Rail part 20 Leg part 21 Support bracket 21d Support column leg 21e Grounding part 22 Mounting bracket 23 Holding frame C Standing center line O Center of rotation

Claims (5)

スロープ部材と、前記スロープ部材の後端部に折り畳み可能な脚部とを備え、
前記スロープ部材は後端部に取付部を有し、前記取付部に取付ブラケットを固定してあり、
前記取付ブラケットの左右端部を前記脚部に設けた支持ブラケットに軸着してあり、
使用時は前記脚部を前記スロープ部材の裏面側に起立状態にし、収納時は前記脚部を前記スロープ部材の後方に延在させるものであることを特徴とするスロープ装置。 A slope member, and a leg portion that can be folded at the rear end of the slope member;
The slope member has a mounting portion at a rear end portion, and a mounting bracket is fixed to the mounting portion.
The left and right ends of the mounting bracket are pivotally attached to a support bracket provided on the leg,
The slope device is characterized in that the leg portion is erected on the back side of the slope member when in use, and the leg portion extends rearward of the slope member when stored. 前記取付ブラケットは、前記スロープ部材の取付部の表側に固定してあり、使用時は前記取付ブラケットと前記支持ブラケットの間に前記スロープ部材の取付部が位置するものであることを特徴とする請求項１記載のスロープ装置。   The mounting bracket is fixed to the front side of the mounting portion of the slope member, and the mounting portion of the slope member is positioned between the mounting bracket and the support bracket when in use. Item 1. The slope device according to Item 1. 前記スロープ部材はパネル体と、前記パネル体の通路方向端部に沿って設けたレール部を有し、使用時には前記支持ブラケットの上面が前記レール部の下部に廻り込むものであることを特徴とする請求項１又は２記載のスロープ装置。   The slope member has a panel body and a rail portion provided along an end in the passage direction of the panel body, and the upper surface of the support bracket wraps around the lower portion of the rail portion when used. Item 3. The slope device according to Item 1 or 2. 前記取付ブラケットと支持ブラケットの軸着部回転中心は前記脚部の前後方向の起立中心線に対して後方側にオフセットさせてあることを特徴とする請求項１〜３のいずれかに記載のスロープ装置。   The slope according to any one of claims 1 to 3, wherein a pivot center of the mounting bracket and the support bracket is offset rearward with respect to an upright center line in the front-rear direction of the leg portion. apparatus. 前記取付ブラケットと支持ブラケットは前記スロープ部材の取付部の強度よりも強く設定してあることを特徴とする請求項１〜４のいずれかに記載のスロープ装置。   The slope device according to any one of claims 1 to 4, wherein the mounting bracket and the support bracket are set to be stronger than the strength of the mounting portion of the slope member.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210137700A (en) * 2020-05-11 2021-11-18 정주현 Telescoping collapsible ramp

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827982A (en) * 1994-07-12 1996-01-30 Tejima Kogyo Kk Support metal fitting of slope plate for eliminating step difference of indoor-outdoor walking place
JP2002115709A (en) * 2000-08-04 2002-04-19 Horiguchi Kogyosho:Kk Floor face forming device
JP2004203282A (en) * 2002-12-26 2004-07-22 Aisin Keikinzoku Co Ltd Vehicular slope fitting
JP2005207145A (en) * 2004-01-23 2005-08-04 Japan Steels International Inc Passage with level difference

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0827982A (en) * 1994-07-12 1996-01-30 Tejima Kogyo Kk Support metal fitting of slope plate for eliminating step difference of indoor-outdoor walking place
JP2002115709A (en) * 2000-08-04 2002-04-19 Horiguchi Kogyosho:Kk Floor face forming device
JP2004203282A (en) * 2002-12-26 2004-07-22 Aisin Keikinzoku Co Ltd Vehicular slope fitting
JP2005207145A (en) * 2004-01-23 2005-08-04 Japan Steels International Inc Passage with level difference

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210137700A (en) * 2020-05-11 2021-11-18 정주현 Telescoping collapsible ramp
KR102464651B1 (en) * 2020-05-11 2022-11-08 정주현 Telescoping collapsible ramp

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