JP2019078098A - Lifting apparatus - Google Patents

Lifting apparatus Download PDF

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JP2019078098A
JP2019078098A JP2017206792A JP2017206792A JP2019078098A JP 2019078098 A JP2019078098 A JP 2019078098A JP 2017206792 A JP2017206792 A JP 2017206792A JP 2017206792 A JP2017206792 A JP 2017206792A JP 2019078098 A JP2019078098 A JP 2019078098A
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lifting
traveling girder
girder
traveling
traversing device
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JP6923416B6 (en
JP6923416B2 (en
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知樹 前田
Tomoki Maeda
知樹 前田
博康 田村
Hiroyasu Tamura
博康 田村
周平 宍戸
Shuhei Shishido
周平 宍戸
祐輔 田原
Yusuke Tahara
祐輔 田原
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Total Electric Management Service Co Ltd
Toko Sangyo Co Ltd
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Total Electric Management Service Co Ltd
Toko Sangyo Co Ltd
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Abstract

To facilitate the improvement of workability and weight reduction of an apparatus by earning the lifting margin.SOLUTION: A lifting apparatus 2 is configured to be provided with a travel girder 3, a traversing device 5 placed to be freely traveled on the travel girder 3, and a chain block 30 locked to the traversing device 5, the chain block 30 being offset in the width direction with respect to the longitudinal direction of the travel girder 3 so as to be arranged on the front side of the traversing device 5. The traversing device 5 is provided with a main body 10, upper rollers 11A and 11B rotating in contact with an upper surface 3A of the travel girder 3, front side support roller 12A and 12B rotating in contact with the lower end of a lateral surface 3B on the front side of the travel girder 3, and rear side support rollers 13A and 13B which rotate in contact with an upper end of a lateral surface 3C on a rear side of the travel girder 3, the rollers being provided on the main body 10. Each of the rollers 11A, 11B, 12A, 12B, 13A, and 13B support an unbalanced load at the time of lifting a heavy object.SELECTED DRAWING: Figure 2

Description

本発明は、鉄道において用いられる吊上器に関するものである。   The present invention relates to a lifting gear used in railways.

従来、鉄道における転轍機やレールの吊り上げには、吊上器（山越器、巻き上げ機）が用いられる。この吊上器は、走行桁を、平行に設けた２本の横架部材と、この横架部材の両端を支持する脚とを備えて構成し、横架部材上に車輪を有する巻き上げ装置を走行自在に配置し、横架部材間の空隙にフックを有するロードチェーンを吊り降ろして上下動させるようにしている（例えば、特許文献１参照）。この従来の吊上器は、巻き上げ装置のロードチェーンを中央に配置し、吊り上げ時の荷重を均等に横架部材が負担するようになっている。   BACKGROUND ART Conventionally, a lifting device (yamakoshi sack, hoisting device) is used for lifting a switch or rail in a railway. The hoist comprises a traveling girder comprising two parallel cross members provided in parallel and legs supporting the both ends of the horizontal member, and a hoist having a wheel on the horizontal member. A load chain having hooks is disposed so as to be runnable and has a hook in the space between the horizontal members, and is vertically moved (see, for example, Patent Document 1). In this conventional lifter, the load chain of the hoisting device is disposed at the center, and the load on the lifting is evenly shared by the cross member.

この従来の吊上器では、角筒状に形成された横架部材を２本配置しなければならないので、走行桁の重量化が避けられず、運搬時に難渋するという問題がある。このため、横架部材を１本で構成し、この横架部材に横行装置を走行自在に載置し、横行装置の中央下方に巻き上げ機を設けた吊上器が提案されている（例えば、特許文献２参照）。   In this conventional lifting device, since it is necessary to arrange two cross-members formed in a square tube shape, the weight increase of the traveling girder can not be avoided, and there is a problem that it is difficult during transportation. For this reason, there has been proposed a lifting device in which a single horizontal cross member is provided, the transverse device is movably mounted on the horizontal cross member, and a hoist is provided below the center of the lateral device (for example, Patent Document 2).

特開２００５−７６４２１号公報JP 2005-76421 A 特開２００５−２７３３１２号公報JP, 2005-273312, A

しかしながら、上記従来の特許文献２に記載の吊上器（山越器）では、チェーンブロックにより、転轍機や信号器具等の比較的重量の軽い重量物の吊り上げに使用する場合、作業に必要な吊り上げ代を確保するため、走行桁高さを高くしなければならない。このため、脚を長寸化させなければならず、重量化してしまうという問題がある。   However, the lifting device (Yamakoshi container) described in the above-mentioned conventional Patent Document 2 uses the chain block to lift a relatively light weight such as a switch or a signal device, a lifting margin necessary for the work. In order to secure the traveling girder height must be increased. For this reason, it is necessary to lengthen the legs, which causes a problem of weight increase.

本発明は上記課題を解決するためになされたもので、たとえ走行桁高さに制約があっても、必要な吊り上げ代を確保することができ、しかも、軽量化に資することができる吊上器を提供することを目的とする。   The present invention has been made to solve the above-mentioned problems, and a lifting device capable of securing a necessary lifting allowance and contributing to weight reduction even if the height of the traveling girder is restricted. Intended to provide.

本発明に係る吊上器は、走行桁に沿って走行自在な横行装置と、この横行装置に取り付けられ被吊り上げ材を吊り上げる吊り上げ部とを備えた吊上器において、吊り上げ部を、前記走行桁から横方向に偏倚させて配置したことを特徴としている。   A lifting device according to the present invention is a lifting device including: a traversing device capable of traveling along a traveling girder; and a lifting portion attached to the traversing device and lifting a material to be lifted. It is characterized in that it is arranged by being biased in the lateral direction from.

本発明に係る吊上器では、走行桁に沿って走行自在な横行装置と、この横行装置に取り付けられ被吊り上げ材を吊り上げる吊り上げ部とを備えた吊上器において、吊り上げ部を、前記走行桁から横方向に偏倚させて配置したことにより、走行桁高さに制約のある小型の吊上器であっても、吊り上げ代をより長く確保することができるので、装置の小型軽量化を図ることができ、作業効率を向上させることができるとともに、作業人員を削減してコストダウンを図ることができる。   In the lifting device according to the present invention, in the lifting device including: a traversing device capable of traveling along the traveling girder; and a lifting portion attached to the traversing device and lifting up the material to be lifted, the lifting portion Since it is possible to secure a longer lifting allowance even for a small lifting device that is limited to the height of the traveling girder, the device can be reduced in size and weight by arranging the device so as to be biased in the lateral direction. As a result, the work efficiency can be improved, and the number of workers can be reduced to reduce the cost.

また、本発明に係る吊上器では、吊り上げ部は、チェーンブロックから構成され、横行装置の一側部に係止されることが望ましい。係る構成とすることによりチェーンブロックをより高い位置に配置することができ、その分、吊り上げ代を稼ぐことができる。さらに、横行装置は、角筒状に形成された走行桁上面を転動する上ローラと、走行桁の両側面を転動し偏荷重を支持する支持ローラとを有することが好ましい。また、支持ローラは、走行桁の、吊り上げ部側の一側面の下端に当接する第１の支持ローラと、走行桁の、吊り上げ部と反対側の他側面の上端に当接する第２の支持ローラとを備えて構成されることが好ましい。係る構成とすることにより、横行装置に対して偏倚して設けられたチェーンブロックの重量による回転モーメントの力を分散して均等に負担することができる。さらに、横行装置は、走行桁の上方から着脱自在に装着されることが好ましい。また、横行装置は、制動部を備えていることが望ましい。さらに、走行桁は、両端に高さを調整可能な支持脚を備えて構成されることが好ましい。   Further, in the lifting device according to the present invention, it is desirable that the lifting portion be a chain block and be locked to one side of the traversing device. By setting it as the structure which concerns, a chain block can be arrange | positioned in a higher position, and the part | minute and lifting allowance can be earned. Furthermore, it is preferable that the crossing device has an upper roller that rolls on the upper surface of the traveling girder formed in a square tube shape, and a support roller that rolls on both side surfaces of the traveling girder to support an unbalanced load. Further, the support rollers are a first support roller that abuts on the lower end of one side of the traveling girder on one side of the lifting portion, and a second supporting roller abuts on the upper end of the other side of the traveling girder on the opposite side to the lifting portion And is preferably provided. By adopting such a configuration, it is possible to disperse and evenly bear the force of the rotational moment due to the weight of the chain block provided offset to the traversing device. Furthermore, it is preferable that the crossing device be detachably mounted from above the traveling girder. Preferably, the traversing device comprises a braking unit. Furthermore, it is preferable that the traveling girder be configured with support legs whose heights can be adjusted at both ends.

本発明に係る吊上器は、走行桁に沿って走行自在な横行装置と、この横行装置に取り付けられ被吊り上げ材を吊り上げる吊り上げ部とを備えた吊上器において、吊り上げ部を、前記走行桁から横方向に偏倚させて配置したので、走行桁高さに対する吊り上げ代の割合を高くすることができ、作業性が向上するとともに、吊上器の軽量化を図ることができる。   A lifting device according to the present invention is a lifting device including: a traversing device capable of traveling along a traveling girder; and a lifting portion attached to the traversing device and lifting a material to be lifted. Since it is arranged to be biased in the lateral direction, the ratio of the lifting margin to the height of the traveling girder can be increased, the workability can be improved, and the weight reduction of the lifting gear can be achieved.

（Ａ）、（Ｂ）はそれぞれ、本発明の一実施形態に係る吊上器を示す平面図および正面図である。(A) and (B) are a top view and a front view showing a lifting gear according to an embodiment of the present invention, respectively. 図１の吊上器の側面図である。It is a side view of the lifting gear of FIG. 図１の吊上器の横行装置の背面図である。It is a rear view of the traversing device of the hoist of FIG. 図３の横行装置のＩＶ−ＩＶ線に沿った縦断面図である。It is a longitudinal cross-sectional view along the IV-IV line of the traverse apparatus of FIG. 図３の横行装置の側面図である。FIG. 4 is a side view of the traversing device of FIG. 3; 図５の横行装置のＶＩ−ＶＩ線に沿った縦断面図である。It is a longitudinal cross-sectional view along the VI-VI line of the traverse apparatus of FIG. 図３の横行装置の平面図である。FIG. 4 is a plan view of the traversing device of FIG. 3; 図３の横行装置の正面図である。It is a front view of the traversing apparatus of FIG.

以下、本発明に係る吊上器について、図面に示す一実施形態により説明する。本発明の一実施形態に係る吊上器（山越器）２は、図１の（Ａ）、（Ｂ）および図２に示すように、断面矩形状の中空角筒材からなる走行桁３と、横行装置５と、チェーンブロック（吊り上げ部）３０とを備えて構成される。この走行桁３の両端には、走行桁３を支持する逆Ｖ字状支持脚４、４が折り畳み自在に取り付けられる。走行桁３は、桁長さ３，５００ｍｍの寸法を有するのが好ましい。本実施例に係る吊上器２は、鉄道においては、転轍機や信号器具等の比較的重量の軽い重量物の吊り上げに供される。   Hereinafter, a hoist according to the present invention will be described by way of an embodiment shown in the drawings. As shown in FIGS. 1A, 1B, and 2, a lifting gear (Yamakoshi vessel) 2 according to an embodiment of the present invention is provided with a traveling girder 3 made of a hollow rectangular tube having a rectangular cross section. , Traversing device 5 and a chain block (lifting part) 30. At both ends of the traveling girder 3, inverted V-shaped supporting legs 4, 4 for supporting the traveling girder 3 are foldably attached. The traveling girder 3 preferably has a girder length of 3,500 mm. The lifting device 2 according to the present embodiment is used for lifting relatively light-weight heavy items such as switches and signal devices in a railway.

支持脚４はそれぞれ、筒状脚部５Ａを逆Ｖ字状に形成した二股の脚となっている。筒状脚部５Ａには、伸縮脚部５Ｂが内部に収容され、脚長さを調節できるようになっている。伸縮脚部５Ｂには、図２に示すように縦方向に調節孔６が多数穿設される。調節時には、筒状脚部５Ａ下部に穿設された孔７と、伸縮脚部５Ｂの選択された調節孔６とを重ねあわせ、これら重なった孔７、６にピン８を挿通するようになっている。符号９は、走行桁３両端に設けられた取っ手である。支持脚４は、伸縮脚部５Ｂを最大に伸ばすと、走行桁高さＨを１３７７ｍｍの寸法とすることが好ましい。また、支持脚４は、伸縮脚部５Ｂを筒状脚部５Ａに収容して、最も短くした際の走行桁高さＨを８４０ｍｍとし、この状態で折り畳まれる。   Each support leg 4 is a bifurcated leg in which the cylindrical leg 5A is formed in an inverted V-shape. In the cylindrical leg 5A, the telescopic leg 5B is accommodated inside, and the leg length can be adjusted. As shown in FIG. 2, a large number of adjustment holes 6 are formed in the longitudinal direction in the extension leg 5B. At the time of adjustment, the hole 7 formed in the lower part of the cylindrical leg 5A and the selected adjustment hole 6 of the extendable leg 5B are overlapped, and the pin 8 is inserted into the overlapped holes 7 and 6 ing. The code | symbol 9 is a handle provided in the traveling girder 3 both ends. The support leg 4 preferably has a height H of the traveling girder of 1377 mm when the telescopic leg 5B is extended to the maximum. The support leg 4 is folded in this state, with the height H of the traveling girder when the telescopic leg portion 5B is accommodated in the cylindrical leg portion 5A and the length thereof is the shortest.

走行桁３には、上方から横行装置５が取り外し自在に載置される。横行装置５は、図３ないし図６に示すように、本体１０と、この本体１０上部に設けられ、走行桁３の上面３Ａを転動する上ローラ１１Ａ、１１Ｂと、走行桁３の各側面３Ｂ、３Ｃを転動する前側支持ローラ（第１の支持ローラ）１２Ａ、１２Ｂおよび後側支持ローラ（第２の支持ローラ）１３Ａ、１３Ｂと、ブレーキ装置２０とを備えて構成される。本体１０は、走行桁３の各側面３Ｂ、３Ｃにそれぞれ向き合う前後側プレート１４Ａ、１４Ｂと、走行桁３の形状に対応した切り欠き１５が形成され、前後側プレート１４Ａ、１４Ｂの左右方向端面に接続される左右枠プレート１４Ｃ、１４Ｄと、これら前後側のプレート１４Ａ、１４Ｂの上端および左右枠プレート１４Ｃ、１４Ｄの内側面上端を接続する上側プレート１４Ｅとを備えている。前後側プレート１４Ａ、１４Ｂ間の寸法を２１０ｍｍとし、上側プレート１４Ｅの前後方向寸法（左右枠プレート１４Ｃ、１４Ｄの前後方向寸法）を３１４．５ｍｍとし、上側プレート１４Ｅ上面から前後側プレート１４Ａ、１４Ｂ下端までの寸法を２７８ｍｍとすることが好ましい。走行桁３は、幅８０．７ｍｍ、高さ１７２ｍｍとすることが好ましい。   The traversing device 5 is detachably mounted on the traveling girder 3 from above. As shown in FIGS. 3 to 6, the crossing device 5 is provided on the main body 10 and the upper portion of the main body 10, and upper rollers 11A and 11B rolling on the upper surface 3A of the traveling girder 3 and side surfaces of the traveling girder 3 A front support roller (first support roller) 12A, 12B, a rear support roller (second support roller) 13A, 13B for rolling 3B, 3C, and a brake device 20 are provided. The main body 10 has front and rear plates 14A and 14B facing the side surfaces 3B and 3C of the traveling girder 3, and notches 15 corresponding to the shape of the traveling girder 3, respectively. The left and right frame plates 14C and 14D to be connected, and the upper plate 14E to connect the upper ends of the front and rear plates 14A and 14B and the inner side upper end of the left and right frame plates 14C and 14D are provided. The dimension between the front and back side plates 14A and 14B is 210 mm, and the front and back direction size of the upper side plate 14E (the front and back direction size of the left and right frame plates 14C and 14D) is 314.5 mm, and the front and back side plates 14A and 14B lower end from the upper surface of the upper side plate 14E. It is preferable to set the dimension up to 278 mm. The traveling girder 3 preferably has a width of 80.7 mm and a height of 172 mm.

ブレーキ装置（制動部）２０は、操作レバー２１と、この操作レバーに連結されたねじ部２２と、このねじ部先端に設けられたパッド２３を備えて構成され、操作レバー２１の回動操作によりパッド２３を走行桁３に圧接させて、制動操作を行うようになっている。符号１７は取っ手である。   The brake device (braking portion) 20 is configured by including an operation lever 21, a screw portion 22 connected to the operation lever, and a pad 23 provided at the tip end of the screw portion. The pad 23 is brought into pressure contact with the traveling girder 3 to perform a braking operation. Reference numeral 17 is a handle.

ところで、本実施形態に係る吊上器２では、左右枠プレート１４Ｃ、１４Ｄは、図４および図５に示すように、前方側が台形状に突出して形成されるこれら左右枠プレート１４Ｃ、１４Ｄ間には、支持ロッド１６が水平に設けられ、チェーンブロック３０のフック３１が懸吊されるようになっている。すなわち、チェーンブロック３０は、走行桁３の長手方向に対して幅方向（横方向）に、言い換えれば、横行装置５の走行経路に対して横方向にずれて配置されるようになっている。この支持ロッド１６は、走行桁３の中央線Ｃからの距離と左右枠プレート１４Ｃ、１４Ｄの上端からの距離とが、チェーンブロック３０により吊り上げる重量物の重さに応じて決められるようになっている。本実施形態では、走行桁３の中央線から１７９ｍｍ、左右枠プレート１４Ｃ、１４Ｄの上端から１０７ｍｍの距離を隔てて設けることが好ましい。なお、この支持ロッド１６の位置は、これに限られるものではなく、吊上器２の走行経路（走行桁３の長手方向）に対して横方向に偏倚していればよく、左右枠プレート１４Ｃ、１４Ｄの上記位置より上方に位置させてもよい。係る構成とすることにより、チェーンブロックを吊上器の下方に配置するのに比べて、走行桁高さＨに対するチェーンブロック３０の吊り上げ代Ｍをより大きく確保することができる。   By the way, in the lifting gear 2 according to the present embodiment, the left and right frame plates 14C and 14D are formed between the left and right frame plates 14C and 14D which are formed with the front side projecting in a trapezoidal shape as shown in FIGS. The support rod 16 is provided horizontally, and the hooks 31 of the chain block 30 are suspended. That is, the chain block 30 is disposed so as to be offset in the width direction (lateral direction) with respect to the longitudinal direction of the traveling girder 3, in other words, in the lateral direction with respect to the traveling path of the traverse device 5. In this support rod 16, the distance from the center line C of the traveling girder 3 and the distance from the upper ends of the left and right frame plates 14 C and 14 D can be determined according to the weight of the heavy object to be lifted by the chain block 30. There is. In this embodiment, it is preferable to provide a distance of 179 mm from the center line of the traveling girder 3 and 107 mm from the upper ends of the left and right frame plates 14C and 14D. The position of the support rod 16 is not limited to this, as long as the support rod 16 is biased in the lateral direction with respect to the traveling path of the lifting device 2 (longitudinal direction of the traveling girder 3) , 14D may be located above the above position. By setting it as such a structure, the lifting allowance M of the chain block 30 with respect to the traveling-girder height H can be ensured larger compared with arrange | positioning a chain block below a lifting gear.

本実施形態に係る吊上器２では、チェーンブロック３０を走行経路に対して横に偏倚させて配置するようにしているので、重量物の吊り上げ時、吊上器２には、走行桁３を中心に回転方向のモーメントが働く。このため、前側支持ローラ１２Ａ、１２Ｂは、図４および図８に示すように、走行桁３の前側の側面３Ｂの下端部に、後側支持ローラ１３Ａ、１３Ｂは、図３および図４に示すように、走行桁３の後側の側面３Ｃの上端部に、それぞれ当接して転動するようになっている。このため、上ローラ１１Ａ、１１Ｂ、前側支持ローラ１２Ａ、１２Ｂおよび後側支持ローラ１３Ａ、１３Ｂにより偏荷重を支持するようになっている。   In the lifting device 2 according to the present embodiment, since the chain block 30 is arranged to be laterally biased with respect to the traveling path, the traveling device 3 is used as the lifting device 2 when lifting a heavy object. A moment of rotation acts at the center. Therefore, as shown in FIGS. 4 and 8, the front support rollers 12A and 12B are shown at the lower end of the front side 3B of the traveling girder 3, and the rear support rollers 13A and 13B are shown in FIGS. As described above, the upper end portions of the rear side surfaces 3C of the traveling girder 3 contact and roll, respectively. For this reason, the offset load is supported by the upper rollers 11A and 11B, the front support rollers 12A and 12B, and the rear support rollers 13A and 13B.

次に、本実施形態に係る吊上器２の動作について、吊上器２の作用に基づいて説明する。まず、吊上器２は、支持脚４を所望の長さでセットし、走行桁３を水平になるよう作業場所に設置する。次に、走行桁３に上方から横行装置５を載せて、支持ロッド１６にチェーンブロック３０のフック３１を懸吊して、準備が整う。横行装置５は取っ手１７を操作すると、走行桁３上を自在に走行される。このとき、チェーンブロック３０は、横行装置５の横方向前側に配置されているので、チェーンブロックを横行装置の下側に配置するのに比較して、吊り上げ代Ｍを大きくとることができる。このため、作業性が向上する。また、走行桁３を高くする必要がなくなるので、装置全体を小型軽量化できる。   Next, the operation of the lifting device 2 according to the present embodiment will be described based on the action of the lifting device 2. First, the lifting device 2 sets the support legs 4 at a desired length, and places the traveling girder 3 in a work place so as to be horizontal. Next, the traverse device 5 is placed on the traveling girder 3 from above, and the hooks 31 of the chain block 30 are suspended on the support rods 16 to be ready. The traverse device 5 travels freely on the traveling girder 3 when the handle 17 is operated. At this time, since the chain block 30 is disposed on the front side in the lateral direction of the traversing device 5, the lifting margin M can be increased compared to the case where the chain block is disposed on the lower side of the traversing device. This improves the workability. In addition, since it is not necessary to raise the traveling girder 3, the entire apparatus can be reduced in size and weight.

なお、上記実施形態では、吊り上げ部を横行装置の一側部に係止させているがこれに限られるものではなく、各ローラが偏荷重を支持する限りにおいて、横行装置の一側部の上方に係止して、より吊り上げ代を稼ぐようにしてもよい。つまり、左右枠プレートを上方に延長し、上側プレートより上方に位置させてもよい。その場合、チェーンブロックの下面が走行桁の下面とほぼ同じレベルになるようにすることが好ましい。また、上記実施形態では、吊り上げ部をチェーンブロック３０により構成しているが、これに限られるものではなく、手動、電動に限らず、他の巻き上げ機や吊り上げ装置であってもよいことはいうまでもない。   In the above embodiment, the lifting portion is locked to one side of the crossing device, but the invention is not limited to this, and as long as each roller supports a biased load, the upper side of one side of the crossing device It may be locked in order to earn more lifting costs. That is, the left and right frame plates may be extended upward and positioned above the upper plate. In that case, it is preferable that the lower surface of the chain block be approximately at the same level as the lower surface of the traveling girder. Further, in the above embodiment, the lifting portion is constituted by the chain block 30, but the invention is not limited to this, and the lifting portion is not limited to manual and electric, and may be another lifting machine or lifting device. It's too late.

２ 吊上器
３ 走行桁
５ 横行装置
３０ チェーンブロック（吊り上げ部） Reference Signs List 2 lifting device 3 traveling girder 5 crossing device 30 chain block (lifting part)

Claims (8)

走行桁に沿って走行自在な横行装置と、この横行装置に取り付けられ被吊り上げ材を吊り上げる吊り上げ部とを備えた吊上器において、
吊り上げ部を、前記走行桁から横方向に偏倚させて配置したことを特徴とする吊上器。 In a lifting device provided with a traversing device capable of traveling along a traveling girder, and a lifting part attached to the traversing device and lifting up a material to be lifted,
A lifting device characterized in that the lifting portion is disposed laterally offset from the traveling girder. 吊り上げ部は、チェーンブロックを備え、横行装置の一側部に係止されることを特徴とする請求項１に記載の吊上器。   The hoist according to claim 1, wherein the lifting part comprises a chain block and is locked to one side of the traversing device. チェーンブロックは、横行装置の一側部より上方に係止されることを特徴とする請求項２に記載の吊上器。   3. A hoist according to claim 2, wherein the chain block is locked above one side of the traversing device. 横行装置は、角筒状に形成された走行桁上面を転動する上ローラと、走行桁の両側面を転動する支持ローラとを有し、これらローラにより吊り上げ側の偏荷重を支持することを特徴とする請求項１ないし３のうちいずれか１に記載の吊上器。   The crossing device has an upper roller that rolls on the upper surface of the traveling girder formed in a rectangular tube shape, and a support roller that rolls on both sides of the traveling girder, and supports the uneven load on the lifting side by these rollers. The hoist according to any one of claims 1 to 3, characterized in that 支持ローラは、走行桁の、吊り上げ部側の一側面の下端に当接する第１の支持ローラと、走行桁の、吊り上げ部と反対側の他側面の上端に当接する第２の支持ローラとを備えて構成されることを特徴とする請求項４に記載の吊上器。   The support roller includes: a first support roller in contact with the lower end of one side of the traveling girder on one side of the lifting portion; and a second support roller in contact with the upper end of the other side of the traveling girder opposite to the lifting portion. The hoist according to claim 4, wherein it comprises. 横行装置は、走行桁の上方から着脱自在に装着されることを特徴とする請求項１ないし５のうちいずれか１に記載の吊上器。   The hoist according to any one of claims 1 to 5, wherein the crossing device is detachably mounted from above the traveling girder. 横行装置は、制動レバーを回動させて制動パッドを走行桁に圧接させる制動部を備えていることを特徴とする請求項１ないし６のうちいずれか１に記載の吊上器。   The hoist according to any one of claims 1 to 6, characterized in that the crossing device includes a braking portion that turns the braking lever to press the braking pad against the traveling girder. 走行桁は、両端に高さを調整可能な支持脚を備えて構成されることを特徴とする請求項１ないし７のうちいずれか１に記載の吊上器。   The hoist according to any one of claims 1 to 7, characterized in that the traveling girder is configured to have support legs whose heights can be adjusted at both ends.
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Publication number Priority date Publication date Assignee Title
CN111472218A (en) * 2020-04-20 2020-07-31 中建八局轨道交通建设有限公司 Device for dismantling temporary tunnel track and construction method
CN113026451A (en) * 2020-12-22 2021-06-25 中铁五局集团第六工程有限责任公司 Quick rail lifting device

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JP2015205740A (en) * 2014-04-17 2015-11-19 株式会社アイエム Insulation type rail-mountain-crossing unit

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JPS4622740Y1 (en) * 1969-06-11 1971-08-06
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JPH0338888U (en) * 1989-08-25 1991-04-15
JP2009502698A (en) * 2006-07-21 2009-01-29 ケージー インコーポレーション Hoist for low space crane
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472218A (en) * 2020-04-20 2020-07-31 中建八局轨道交通建设有限公司 Device for dismantling temporary tunnel track and construction method
CN113026451A (en) * 2020-12-22 2021-06-25 中铁五局集团第六工程有限责任公司 Quick rail lifting device

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