JP2844108B2 - Sliding elliptical traveling crane - Google Patents

Description

The present invention relates to a vertical transportation (lifting) and a horizontal transportation of materials in a building such as a building, and an assembling of a steel frame material.
Also, a slide-type head that can be used for applications such as overhead cranes that move (distribute) various goods in warehouses and factories, and that can perform crane operations with a free combination of horizontal orbiting motion and linear sliding motion. It relates to a circular traveling crane.

2. Description of the Related Art Conventionally, tower cranes, jib cranes, mobile cranes, and the like are often used for construction purposes. In factories and warehouses, overhead cranes are often used for distribution. The former carries out crane work only by turning movement or turning and raising, and the latter carries out crane work by horizontal vertical and horizontal linear movement.

In short, there has been no conventional crane operation in which a horizontal orbiting motion and a linear sliding motion are freely combined to perform a wide range of crane operations.

Problems to be Solved by the Present Invention I) A tower crane, a jib crane, or the like has a configuration in which only a swiveling motion or a crane operation by a swiveling motion and an elevating operation can be performed. No, the working range is relatively small. Therefore, in order to perform a wide range of crane operations, a large number of cranes must be installed in an arrangement in which the swivel ranges partially overlap. Further, even within the turning range, the crane operation near the turning center is relatively inconvenient in relation to the elevation of the boom. Furthermore, even within the turning range, in order to demonstrate the freedom and efficiency of crane work, the jib or boom must have a degree of freedom of elevation, so a three-dimensional work that is sufficiently wide in the horizontal and vertical directions Space is required and application conditions are restricted. For example, in constructing the underground structure of a building, materials are transported and assembled by a jib crane etc. installed on the ground.If the boom or jib is freely rotated and raised, the assembling of the superstructure on the ground will be hindered. Come. Conversely, crane work is often restricted.

Or, when constructing a high-rise building, it is extremely difficult with conventional crane configurations to install a swivel crane near the top and middle of the building and, more specifically, install swivel cranes on each floor of the building. It was possible.

II) Conventionally, overhead cranes used for logistics in factories and warehouses can perform crane operations by moving two-dimensionally in the vertical and horizontal directions on the horizontal plane, but they do not have a revolving function. There is a disadvantage of low degree of freedom.

 The above is the problem to be solved by the present invention.

Means for Solving the Problems As means for solving the above-mentioned problems of the prior art, a sliding-type oblong traveling crane according to the present invention includes, as shown in the embodiment in the drawings: An oval rail 1 mounted and fixed substantially horizontally on the lower surface, and a straight center rail 10 mounted and fixed at the position of the long axis of the oval rail 1
B) A self-propelled support device such as an electric trolley 4 and a center rail 10 which are disposed on the lower surface side of the oval rail 1 and the center rail 10 and are arranged orthogonal to the oval rail 1 and run around the oval rail 1. A linear circulating rail 2 suspended by a trolley 11 that travels straight on the trolley, and particularly having a turning axis 8 at a position where the trolley 11 is suspended; A linear slide rail 3 movably suspended by a self-propelled support device such as an electric trolley 5 which is arranged in parallel and travels on the orbiting rail 2) d) freely travels on the slide rail 3 over its entire length. And a self-propelled lifting machine such as a hoist 6 installed in the vehicle.

The above-mentioned sliding elliptical traveling crane also has a first
And a connecting frame 1 in which two trolleys 11 and 11 that run straight on the center rail 10 are connected below the center rail 10.
3 and a revolving frame 14 arranged under the revolving frame 14 are pivotally connected at their respective center portions by a revolving shaft 8, and inverted trolleys 12, 12 are installed at both ends of the revolving frame 14 in a symmetrical arrangement. The lower surface of the upper flange of the orbiting rail 2 is movably supported by the wheels 12a and 12a of the trolleys 12 and 12 (Sixth Embodiment).
Second, the circling rail and slide rail are formed by rigidly connecting two rails 2,2 and 3,3 arranged in parallel at a predetermined interval with a connecting material 2a or 3a. A self-propelled lifting machine such as a total of two hoists 6, 6 is installed on each of the slide rails 3, 3 one by one (FIG. 5). Third, ceilings of warehouses, etc. The beam, the girder 111 of the elevating work stage for building construction, or the girder previously assembled on the upper layer of the building is used as the horizontal member for attaching the oval rail 1 and the center rail 10, respectively. Features.

Action The horizontal member 100 is the mounting target of the sliding elliptical traveling crane. If the horizontal member 100 is, for example, a girder member 111 (FIG. 8) of a work stage that moves up and down in the vertical direction, the slide-type elliptical traveling crane is a lifting type. Horizontal material 10
Assuming that the girder at the top or middle of the building assembled beforehand is used as 0, this sliding elliptical traveling crane can be used for building construction. When the girder on the first floor of the building is used as the horizontal member 100, it can be used for building the underground structure of the building. When a beam on the ceiling of a factory or a warehouse is used as the horizontal member 100, this sliding elliptical traveling crane can be used for distribution in a factory or a warehouse.

When the electric trolley 4 circulates on the oblong rail 1, the orbiting rail 2 suspended from the electric trolley 4 at a straight line portion (part A in FIG. 1) goes straight with the arrangement perpendicular to the oval rail 1. I do. At this time, the trolley 11 on the center rail 10 is towed via the orbiting rail 2. The trolley 11 on the center rail 10 stops when the electric trolley 4 reaches the arc portion (the B portion in FIG. 1) from the position of the junction (the line CC in FIG. 1) of the semicircle and the straight line (tangent line). In this state, the orbiting rail 2 makes orbital movement including turning around the turning shaft 8. The operation when turning 180 ° and reaching the straight line portion again is as described above.

Since the inverted trolley 12 movably supports the orbiting rail 2 (FIG. 6), the orbiting rail 2 smoothly performs the orbital movement including the turning in the circular arc portion B in FIG.

Therefore, basically, the size of the major axis and minor axis of the oblong rail 1 is the turning range. However, if the outer end of the orbiting rail 2 protrudes outward of the oval rail 1, the orbiting of the orbiting rail is turned. Range.

Since the electric trolley 4 can travel around the oval rail 1 endlessly, the circumference rail 2 can also make one or more rounds if necessary.

When the electric trolley 5 travels on the rectilinear circuit rail 2, the slide rail 3 suspended from the electric trolley 5 slides along the circuit rail 2 as shown in FIGS. Move. Therefore, when the leading end of the slide rail 3 protrudes out of the turning range of the revolving rail 2 by a length corresponding to the effective stroke, the revolving track of the protruding end is extended to the crane working range (see FIG. 9D). ).

The hoist 6 moves over the entire length of the slide rail 3 to move the hook 9. Therefore, the length of the slide rail 3 is the hook movement range (see FIGS. 3A and 3B). The hoist 6 can lift (lift) materials from below at any position within the range of the effective length of the slide rail 3 and can carry it horizontally to the limit of the length of the slide rail 3. Therefore, if the slide rail 3 protrudes from the turning range, lifting and horizontal transport from inside the turning range to the outside or lifting and horizontal transport of materials from outside the turning range to the inside can be performed. it can.

If a total of two (or more than two) hoists 6,6 installed one by one on two slide rails 3,3 are used, the materials to be transported, such as steel beam 101 and steel column 1
It can be suspended at two points such as 03 and multiple points, and the attitude control in the air becomes possible by the operation considering the position of the center of gravity (see FIG. 8).

Embodiment Next, the illustrated embodiment of the present invention will be described.

First, FIG. 1 and FIG. 2 show a configuration principle diagram and operation of a slide type oblong traveling crane which is an embodiment of the present invention,
4 to 6 show a specific embodiment thereof.

On the lower surface of the horizontal transverse member 100, the flat shape is a long diameter of 16 m, a single diameter of 5 m
A rail 1 having an oval shape is mounted and fixed substantially horizontally. Although illustration of the details of the mounting portion is omitted, for example, an oval rail 1 is provided on the lower surface of the flange of the horizontal member 100 which is a steel frame material.
A known means is implemented in which the upper flanges are brought into contact with each other and tightened and fixed by bolts and nuts. For the oblong rail 1, an I-shaped member having a size of about 300 × 150 mm is used.

A straight center rail 10 is also fixed to the horizontal member 100 at the position of the long axis of the oblong rail 1. For the center rail 10, an I-shaped member having the same size as the oblong rail 1 is used. Center rail
The method of attaching and fixing the 10 to the horizontal member 100 is the same as in the case of the oblong rail 1. The length of the center rail 10 is set so as to protrude slightly from the position of the line CC in FIG. 1 toward the semicircle.

On the lower surface side of the above-mentioned elliptical rail 1 and the center rail 10, a linear revolving rail 2 (see FIG. 1) arranged orthogonally to the elliptical rail 1 travels around the elliptical rail 1. Two places are suspended by a trolley 4 (however, any self-propelled supporting machine having a self-propelling function and a suspension supporting function is also possible, the same applies hereinafter) and a trolley 11 traveling straight on the center rail 10. Has been established. In particular, a swing shaft 8 is provided at a portion where the trolley 11 is hung so as to be able to go around. The circling rail 2 has a size of 300 × 150 mm for easy understanding in, for example, FIGS.
Position and length are slightly larger than the minor axis of the elliptical rail 1
Two I-beams of about 6 m are arranged in parallel at an interval of about 1.5 m, and are integrally rigidly connected with several horizontal connecting members 2a (FIG. 4). Two electric trolleys 4 are used before and after at the same 1.5 m interval as the two orbiting rails 2, 2 (FIG. 5).

The hanging position of the orbiting rail 2 by the electric trolley 4 is one end side of the orbiting rail 2 as shown in FIGS. 3A and 3B. As shown in FIGS. 4 and 5, the details of the suspension structure are as follows. A drive wheel 4a that rides on the lower flange of the oval rail 1 and a brake motor 4b that rotates the drive wheel 4a are mounted on both sides of the rail web. And symmetrically arranged on a common trolley yoke 4d. Hanging brackets 31 at the bottom of each trolley yoke 4d
A suspension frame 15 made of two channel steels is suspended and supported via the shaft, and the revolving rail 2 is attached to both ends of the suspension frame 15. The rated lifting load of the electric trolley 4 is set to about 5 tons.

The hanging position of the orbiting rail 2 by the trolley 11 is shown in FIG.
As shown in A and B, it is a substantially central portion of the orbiting rail 2. As shown in FIGS. 4 and 6, the suspension structure is such that wheels 11a riding on the lower flange of the center rail 10 are symmetrically arranged on both sides of the rail web, and the trolley yoke 11
Installed in b. Trolley 11 also has center rail 10
The two above and below are used at an interval of about 0.85m. The trolley yokes 11b, 11b of the two trolleys 11, 11
The two trolleys 11 are connected under a center rail 10 via a connection frame 13 made of two channel steels arranged in parallel with the center rail 10 so that the two trolleys 11 run integrally. I have. As is apparent from FIG. 6, a pivot 8 fixed with a kansashi pin 16 is installed vertically downward at the center of the connection frame 13. On the other hand, a bearing 7 is provided at the center of a revolving frame 14 arranged substantially parallel to the lower side of the connecting frame 13,
The revolving shaft 8 is passed through the bearing 7, and the revolving frame 14 is suspended (joined) by a lock nut 17 so as to be revolvable.
The revolving frame 14 is made of two channel steels each having a size of 150 × 75 mm and a length of about 1.8 m.
At the same interval (1.5 m), the hanging brackets 32 are fixed symmetrically. By the wheels 12a of the inverted trolleys 12, 12 suspended by the kanzashi pins 33 on each suspension bracket 32,
The lower surface of the upper flange of the orbiting rail 2 is movably suspended and supported. In FIG. 6, 12b is a guide wheel on the flange side. In short, the orbiting rail 2 is a center rail
It is possible to turn with respect to a position suspended and supported by a trolley 11 that travels straight on 10 and to move in the rail axis direction.

Accordingly, when the electric trolley 4 traveling around the above-described elliptical rail 1 is controlled to advance, reverse, or stop by wire (or wireless) remote control using a push-button type operation box, the orbiting rail 2 becomes oval. In the straight portion A (FIG. 1) of the rail 11, the trolley 11 on the center rail 10 is towed and goes straight. Then, in the semicircular portion B, the trolley 11 on the center rail 10 turns around the turning shaft 8 in a stopped state. The orbiting rail 2 is an electric trolley 4
It runs around the rated speed of 6 to 24 m / min. It is also possible to revolve to the required angle and the required angle for the endless.

Since the orbiting rail 2 is movable in the axial direction with respect to the hanging position of the inverted trolley 12, it is possible to smoothly perform the turning operation on the semicircular portion B of the oblong rail 1, and in some cases, oblong. The plane shape of the rail 1 is an elliptical shape whose minor axis is gradually changed, or the center rail 10 is a symmetric axis, for example, a gourd shape or an elliptical shape is divided into two equal parts, or only an oval linear part or a semicircular part is used. It is also possible to carry out the present invention in a shape as described above, and the oblong shape in the present invention includes the above-mentioned shape.

Next, on the lower surface of the orbiting rail 2, a linear slide rail 3 is also movably suspended by an electric trolley 5 and a driven trolley 18 that travel on the orbiting rail 2 (the first trolley 5). 3 Figures A and B). The size of this slide rail is 350x150mm as shown in Fig.3 and Fig.5.
Use two rails 3, 3 using I-shaped steel of about 6m in length and length, and these two rails 3, 3 are arranged in parallel at the same 1.5m interval as the above-mentioned circling rails 2, 2. , Several horizontal joints 3a ...
(Fig. 4) and a rigidly connected structure,
Are arranged in parallel at the position directly below. Therefore, the state in which the slide rail 3 is completely contracted is substantially vertically symmetrical with the orbiting rail 2 as shown in FIG. 3A.
It fits within the circumference of the oblong rail 1.

As is clear from FIGS. 3A and 3B, the driven trolley 18 suspends one end of the slide rail 3, and the electric trolley 5 suspends the driven trolley 18 at a position closer to the center by about 1.5 m. As a result, the maximum length of the slide rail 3 is about 3 m.
Is protruded outward from the end of the.

Details of the structure in which the slide rail 3 is suspended by the electric trolley 5 are as shown in FIGS. 4 and 5. An electric trolley 5 in which a driving wheel 5a running on the upper surface of a lower flange of the orbiting rail 2 and a brake-equipped motor 5b for rotating and driving the driving wheel 5a are symmetrically disposed on a trolley yoke 5c on both sides of the rail web is provided. in use. The slide rail 3 directly below the trolley yoke 5c is suspended and supported by a suspension bracket. The rated lifting load of the electric trolley 5 is 5 tons, and the rated speed is 6 to 24 m / min.

On the other hand, as shown in FIG. 4, the driven trolley 18 has wheels 18a running on the upper surface of the lower flange of the orbiting rail 2 and trolley yokes 18b arranged symmetrically on both sides of the rail web.
It is a configuration installed in The slide rail 3 is suspended and supported below the trolley yoke 18b via a hanging bracket 35.

Accordingly, by controlling the motor 5b of the electric trolley 5 to advance, reverse, or stop by wired (or wireless) remote control using a push-button type operation box, the motor 5b slides at the orbital angle where the orbital rail 2 is stopped. The operation of projecting or contracting the rail 3 and stopping the positioning is performed quickly. Incidentally, in each of the above-described dimensional specifications, the front end of the slide rail 3 protrudes up to about 3 m from one end of the revolving rail 2 forming the turning range (FIG. 3B). Therefore, as can be seen in FIG.
The crane operation can be performed up to the area expanded by 3m outside the orbital range of.

In FIG. 4, reference numeral 36 denotes an anti-lifting wheel installed at the rear end of the slide rail 3 for transmitting a bending moment generated when the slide rail 3 protrudes to the upper revolving rail 2 to take a reaction force.

The two slide rails 3, 3 are provided with a hoist 6 (or a self-propelled lifting machine having a self-propelling function, a lifting function, and a lifting capacity, which can travel over its effective length (about 6 m). If possible, the same shall apply hereinafter), but one per rail 3
2 units at a time (or 2 or more units if necessary)
A table is installed. The hoist 6 is composed of a combination of an electric trolley 60 and an electric chain block 61 as shown in detail in FIG. 7, and both are integrally assembled via a frame 62. The electric trolley 60 has a drive wheel mounted on the upper surface of the lower flange of the slide rail 3 as shown in FIG.
The trolley yoke 6c is provided on both sides of the rail web in a symmetrical arrangement with the trolley yoke 6c. A guide sheave 64 of a chain 63 extended from the frame 62 and the electric chain block 61 is attached to a lower portion of the trolley yoke 6c. This electric trolley 60
Has a rated traveling speed of about 6 to 24 m / min.

The electric chain block 61 is of an electric type driven by a motor, and has a chain bucket 66 attached thereto. The electric chain block 61 is a driven trolley comprising a free wheel 6e mounted on the upper surface of the lower flange of the slide rail 3 as shown in FIG. 7, and a yoke 6f having the free wheel 6e symmetrically disposed on both sides of the rail web. Hanged under 67. The rated lifting load of the electric chain block 61 is 1.5 tons, the head is 15 m, and the hoisting speed is about 2.6 m to 7.9 m / min.

Therefore, the hoist 6 traverses the entire length of the slide rail 3 by controlling the forward / backward and stop of the motor 6b of the electric trolley 60 by wired (or wireless) remote control using a push button type operation box. , Which is the hook movement range (FIGS. 3A and 3B). In addition, the motor of the electric chain block 61 is wound up and down,
By controlling the stop, the materials hung on the hook 9 can be lifted.

In this slide-type elliptical traveling crane, the height from the lower surface of the horizontal member 100 to the lower surface of the lower flange of the slide rail 3 is about 1.3 m.

Other Embodiments The above-mentioned slide type oblong traveling crane is shown in FIGS. 3A and 3B.
As is apparent from the above description, the slide rail 3 is configured in a single slide form protruding only at one end (right side in the figure) of the orbiting rail 2. However, it is also possible to configure and implement a double slide type in which the slide rail 3 protrudes toward both ends of the orbiting rail 2.

Further, in the same manner as the slide type oblong traveling crane of the above embodiment, even when the oblong rail 1 and the revolving rail 2 and the slide rail 3 are combined, in particular, the revolving rail 2 and the slide rail 3 are substantially the same. It is also possible to implement with a configuration in which the height of the suspended load by the hook 9 can be increased.

Mode of Use (Part 1) FIG. 8 shows a slide-type elliptical traveling crane used for building construction and as a crane having a function of moving up and down. In short, as the horizontal member in this case, a girder that rises prior to the construction of the building or a girder member 111 of the work stage is used. A gantry 106 is installed on the top of the column 105, and the above-mentioned beam member 111 is connected to the lower end of a long piston rod 108 of several jacks 107, 107 installed vertically downward on the gantry 106.

Therefore, when the piston rod 108 is raised (or lowered) by the control of the jack 107, the slide type elliptical traveling crane together with the beam member 111 can be moved up (or down), and the crane can be moved vertically. Can provide a moving function.

(Part 2) When used for building construction as shown in FIG. 8, when a known tower crane is arranged based on the shape and size of the building plane 200 as shown in FIG. Similarly, if the sliding type oblong traveling crane having the crane working range D expanded by the swivel range of the oblong rail 1 and the slide rail 3 protruding is properly arranged, the crane operation in all areas of the building plane 200 can be performed. Covered embodiments can be implemented.

(Part 3) Although illustration is omitted, the slide-type oblong traveling crane can be used in place of a conventional overhead crane for distribution in a warehouse or a factory. In this case, the ceiling beam of a building such as a warehouse may be used as a horizontal member, and the oblong rail 1 and the center rail 10 may be fixed to the lower surface thereof.

In short, the sliding-type oblong traveling crane of the present invention can implement various modes of use depending on the application target or conditions.

Advantageous Effects of the Present Invention The sliding-type oblong traveling crane according to the present invention has a sliding function in addition to a revolving function provided in various existing cranes, and has a sliding function, and has an outer periphery of a revolving range of the oblong rail 1. In addition, since the crane operation range D (FIG. 9) is enlarged by the length of the slide rail 3 protruding, crane operation in an extremely wide range is possible. Therefore, for example, the length of the straight portion A of the oval rail 1 (first
By making the figure as long as necessary, it is possible to reduce the number of cranes when covering the entire building plane 200 as shown in FIG.

Moreover, because of the slide function, the crane operation near the center of rotation (slewing shaft 8) can be quickly performed with exactly the same degree of freedom as other parts, and the operability and work efficiency are excellent.

Further, the slide-type oblong traveling crane of the present invention has a height from the oblong rail 1 to the slide rail 3 of about 60 cm.
Since it can be configured and used within a range of about 1.3m at most,
For example, it is very convenient for use in places where the floor height is particularly small, such as in a building. For example, this sliding elliptical traveling crane can be installed and used under a girder on each floor of a building, or used under a ceiling beam in a warehouse or factory. It has the feature that the applicable range is extremely wide.

[Brief description of the drawings]

FIGS. 1 and 2 are a plan view and a front view showing a principle structure of a slide type oblong traveling crane according to the present invention, and FIGS. 3A and 3B.
FIG. 3 is a front view showing a detailed configuration of the first embodiment from a viewpoint similar to that of FIG.
FIG. 4 is an enlarged front view of a portion taken along line 4-4 of FIG. 3B, and FIGS. 5 and 6 are enlarged details taken along lines 5-5 and 6-6 of FIG. 3B. FIG. 7 is a front view of the hoist. FIG. 8 and FIG. 9 are a simplified front view and a plan view, respectively, when the slide type oblong traveling crane of the present invention is used for building construction. 100… horizontal member, 1… oval rail 10… center rail, 4,5… electric trolley 11… trolley 2… circulating rail 3… slide rail, 6… hoist 13… Connecting frame, 8: rotating shaft 14: rotating frame, 12: inverted trolley 12a: wheels, 2a, 3a: connecting material

Continued on the front page (72) Inventor Jiji Shimizu 1-18-18 Nishiki, Naka-ku, Nagoya-shi, Aichi Prefecture Inside Nagoya Branch of Takenaka Corporation (72) Inventor Shigenobu Abe 1-18, Nishiki, Naka-ku, Nagoya-shi, Aichi Prefecture # 22 Takenaka Corporation Nagoya Branch (72) Inventor Masami Yamakita 1-18-22 Nishiki, Naka-ku, Nagoya-shi, Aichi Prefecture Takenaka Corporation Nagoya Branch (72) Inventor Morio Yamada Aichi 1-18-18 Nishiki, Naka-ku, Nagoya-shi Nagoya Branch, Takenaka Corporation (72) Inventor Shigeo Iinuma 1-18-22, Nishiki, Naka-ku, Nagoya-shi, Aichi Nagoya Branch, Takenaka Corporation (72) Inventor Takeshi Mitsui 1-18-22 Nishiki, Naka-ku, Nagoya-shi, Aichi Nagoya Branch, Takenaka Corporation (72) Inventor Masao Miyaguchi 8-2-1-1, Ginza, Chuo-ku, Tokyo Tokyo Main Office, Takenaka Corporation In-store (72) Inventor Shiro Taniguchi 8-21-1, Ginza, Chuo-ku, Tokyo Takenaka Corporation Tokyo In-store (72) Inventor Yoshiteru Iwasa 2-5-114 Minamisuna, Koto-ku, Tokyo Inside the Technical Research Institute, Takenaka Corporation (72) Inventor Eiji 2-5-114 Minamisuna, Koto-ku, Tokyo Takenaka Corporation Inside the Technical Research Institute (72) Inventor Tadaharu Hagiwara 2-5-114 Minamisuna, Koto-ku, Tokyo Inside the Technical Research Institute Takenaka Corporation (72) Inventor Yoshinori Kukino 2-5-14-Minamisuna, Koto-ku, Tokyo Stock Company Inside Takenaka Corporation Technical Research Institute (72) Inventor Takumi Fujii 2-5-14-1 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (72) Inventor Masahiro Morita 2-5-1-14 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (72) Inventor Sakai Hasebe 2-5-14-1 Minamisuna, Koto-ku, Tokyo Inside Takenaka Corporation Technical Research Institute (72) Inventor Akinori Nagai 2-5-2 Minamisuna, Koto-ku, Tokyo No. 14 Inside Takenaka Corporation Technical Research Institute (72) Inventor Hideo Tatematsu Komaki City, Komaki City, Chiba Prefecture 2235 Komakihara Nitta, Doi Sangyo Co., Ltd. Komaki Sales Office (72) Inventor Takashi Otake 3-7-7 Marunouchi, Naka-ku, Nagoya City, Aichi Prefecture Chisan Marunouchi Building 305 Otake Giken (58) ) Surveyed field (Int.Cl. ⁶ , DB name) B66C 5/00-7/16

Claims (4)

(57) [Claims] 1. An elliptical rail substantially horizontally mounted and fixed to a lower surface of a horizontal member or the like, a straight center rail mounted and fixed at a position of a long axis of the elliptical rail, and b) the length. It is arranged on the lower surface side of the circular rail and the center rail so as to be orthogonal to the oval rail, and is suspended by a self-propelled support device such as an electric trolley or the like traveling around the oval rail and a trolley traveling straight on the center rail. (C) a self-propelled type, such as an electric trolley, which is disposed on the lower surface side of the circulating rail and is substantially parallel to the circulating rail and runs on the circulating rail. A linear slide rail movably suspended by a supporter; d) a self-propelled suspension such as a hoist installed movably along the entire length of the slide rail. A lifting elliptical traveling crane, comprising: 2. A connecting frame in which two front and rear trolleys running straight on a center rail are connected below the center rail, and a turning frame arranged below the connecting frame have their respective center portions centered on the turning shaft. The pivot shaft is pivotally connected to the part, and an inverted trolley is installed at both ends of the pivot frame in a symmetric arrangement, and the lower surface of the upper flange of the orbiting rail is movably supported by wheels of the inverted trolley. A sliding-type oblong traveling crane according to claim 1, characterized in that: 3. A circling rail and a slide rail are formed by rigidly connecting two rails arranged in parallel at a predetermined interval with a connecting member, and two rails, one each on the two slide rails. 2. A slide-type oblong traveling crane according to claim 1, wherein self-propelled lifting machines such as hoists are respectively installed so as to be able to travel. 4. A ceiling beam in a warehouse or the like, an elevating work stage for building construction, or a girder previously assembled in an upper layer of the building is a horizontal member for attaching an oblong rail and a center rail. A sliding-type oblong traveling crane according to claim 1, characterized in that: