JPH0653577U - Manual overhead traveling crane - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain a manual overhead traveling crane that enables smooth running of the girder. [Structure] Rails 1 installed in parallel in a ceiling space in parallel with each other, traveling wheels 3 rotatably attached to the rail 1, and a main body 5 of the traveling wheels 3 rotatably attached to the rail 1. A connecting shaft 4 that hangs downward from the vehicle, and an adjusting wheel 6 in which a main body 7 is rotatably attached to the connecting shaft 4.
And a girder 8 longer than the parallel rail interval and movably bridged between the adjusting wheels 6, and a stopper 11 for preventing excessive movement of the girder 8.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a manual overhead traveling crane in which a girder in which chain blocks and hoists are movably mounted on rails installed in parallel in the ceiling space in parallel with each other is freely movable via wheels. It is about.

[0002]

[Prior art]

 Conventionally, in this type of manual overhead traveling crane, the wheels traveling inside the rail are usually fixed to the girder, and it is difficult for the wheels near both ends of the girder to move in synchronism. Therefore, there is a difference in the traveling speed of both wheels, and the girder inclines horizontally. As a result, the wheels contact the inside of the rail and cause a break. In combination with the load and swaying of the girder, smooth running of the girder could not be expected at all.

Therefore, in order to make the girder run smoothly, an auxiliary member orthogonal to the girder is fixed, and the girder is attached to the rail via wheels so that the girder can be prevented from tilting and an error occurs in the movement. This is done by suspending the rail with a swingable suspension member when attaching the rail to the ceiling space and contacting the inside of the rail such as wheels caused by the inclination of the girder with the rail itself. There were some methods that were corrected.

However, in the former method, since separate auxiliary members have to be fixed orthogonally to the girder, an extra member is required, and it is not only time-consuming for construction, but the auxiliary member is not required. Since it protrudes from the girder along the rail, the girder cannot be moved to the end of the rail, and the effective transport area for the length of the rail is narrowed. Also, with the latter method, although the occurrence of braking due to contact with wheels due to the shaking of the rail itself can be reduced, it is not easy for a general worker to easily distinguish whether the shaking is normal or abnormal. In addition, not only the rails but also the girders and the transported items will unexpectedly shake, and there is a risk of being unable to control this and colliding with other mechanical equipment, transported items, or buildings. is there.

[0005]

[Problems to be solved by the device]

 The problem to be solved is that the girder could not run smoothly in the manual overhead traveling crane.

[0006]

[Means for Solving the Problems]

 According to the present invention, rails installed in parallel in the ceiling space in parallel with each other, running wheels rotatably mounted on the rails, and rotatably mounted on the main running wheels are hung below the rails. The connecting shaft, the adjusting wheel with the main body rotatably attached to the connecting shaft, the girder that is longer than the parallel rails and is movably mounted between the adjusting wheels, and the excessive movement of the girder. It consists of a stopper that prevents

Further, the rail may have a lip channel shape in cross section with the opening portion arranged downward.

Further, it is preferable that the girder has a lip channel shape in cross section with an opening portion arranged downward, and has a groove in an upper portion through which the connecting shaft is movably inserted.

A member having a lip channel in cross section, which has a groove formed by arranging the opening upward, may be fixed to the upper surface of the girder.

Further, the stopper may be adjustable in mounting position.

[0011]

[Action]

 Then, a heavy object is hung on a chain block that is attached to the girder so that it can be moved up and down and moved, and the girder is run along the rail by pushing or pulling it. However, since the girder is movable with respect to the adjusting wheel linked to the traveling wheels of the rail, the tilt is absorbed by the movement of the girder, or the girder is intentionally tilted by the movement of the girder to make the race. The force required for traveling in the direction along the rails is dispersed, the contact force on the inside of the rail such as wheels is weakened, and the girder runs smoothly. The inclination angle of the girder with respect to the rail is set by the position of the stopper.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a rail installed in parallel with a ceiling space, which has a lip channel shape in cross section with an opening 2 arranged downward, and a traveling wheel 3 It is mounted so that it can run freely. Reference numeral 4 denotes a connecting shaft that is rotatably attached to a main body 5 of a traveling wheel 3, and a connecting shaft that hangs down from the rail 1. Below the connecting shaft 4, a main body 7 of an adjusting wheel 6 is rotatably attached.

Reference numeral 8 is a girder having a cross-sectional lip channel shape in which an opening 9 is arranged downward and formed longer than the interval between the parallel rails 1. The connecting shaft 4 is movably inserted into the upper surface near both ends. The groove 10 is formed and is movably bridged between the adjusting wheels 6. A stopper 11 is provided on the groove 10 and prevents excessive movement of the connecting shaft 4, and is attached to the groove 10 so that the mounting position can be adjusted. Reference numeral 12 is a locking body for suspending and hoisting a hoist or the like, which is movably attached to the girder 8.

In the illustrated embodiment, the groove 10 is formed directly on the upper surface of the girder 8. However, as shown in FIG. 5 or 6, the groove 10 is provided and the adjusting wheel 6 is locked. Another member 13 having a lip channel shape in cross section which can be fixed may be fixed to the upper surface of the girder 8. Further, it goes without saying that the end portion of the groove 10 is used as the stopper 11. Reference numeral 14 is a bracket for mounting the rail 1 on the ceiling.

[0015]

[Effects of the Invention] As described above, the manual overhead traveling crane of the present invention enables the girder to move in the direction orthogonal to the parallel rails and rotates at the connecting portion between the rail and the girder. Since the girder runs freely at various angles with respect to the rail, and the force is distributed even during the transfer of heavy objects, it is possible that the running wheels contact the inside of the rail. It is possible to drive smoothly without being pressed against the brakes.

In addition, since the rail has a lip channel cross-section with the opening portion arranged downward, the dust adhering to the rail is reduced as compared to the open type, and the appearance is improved and the traveling wheel is used. It is possible to prevent the accident of falling off the wheel.

Further, the girder is formed into a lip channel shape with a cross-section having an opening at the bottom, and a groove is formed in the upper part through which the connecting shaft is movably inserted, thereby providing a simple structure between the adjusting wheels. The girder can be moved freely, which is extremely beneficial in terms of overall safety.

The girder itself is made tougher by fixing a member having a grooved cross-section with an opening at the upper side on the upper surface of the girder, and the groove exists over the entire length. Therefore, the insertion position of the connecting shaft is not limited, and the assembly can be easily performed.

In addition, the position of the stopper is adjustable, so that the position of the stopper can be easily adjusted even when there is an error in the rail interval or when the inclination angle of the girder is large or small. It is possible to cope with it, and the girder can run more smoothly.

[Brief description of drawings]

FIG. 1 is a front view with a partial cross section.

FIG. 2 is a side view with a partial cross section.

FIG. 3 is an enlarged vertical sectional front view of a main part.

FIG. 4 is an enlarged vertical side view of a main part.

FIG. 5 is a vertical cross-sectional front view of a main part showing another embodiment.

FIG. 6 is a vertical cross-sectional front view of the essential parts of another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 rail 2 opening part 3 traveling wheel 4 connecting shaft 5 main body 6 adjusting wheel 7 main body 8 girder 9 opening part 10 groove 11 stopper 13 cross-section channel-shaped member

Claims (5)

[Scope of utility model registration request] 1. A rail (1) installed in parallel in a ceiling space at appropriate intervals, a traveling wheel (3) movably mounted on the rail (1), and a main body of the traveling wheel (3). A connecting shaft (4) rotatably attached to (5) and hanging below the rail (1); and an adjusting wheel (6) having a main body (7) rotatably attached to the connecting shaft (4). , A girder (8) that is longer than the parallel rail interval and is movably laid between the adjusting wheels (6), and a girder (8)
Manual overhead traveling crane comprising a stopper (11) for preventing excessive movement of the above. 2. A manual overhead traveling crane according to claim 1, wherein the rail (1) has a lip channel shape in cross section with the opening (2) arranged downward. 3. The girder (8) is in the shape of a lip channel in cross section with the opening (9) arranged downward, and has a groove (10) in the upper part through which the connecting shaft (4) is movably inserted. The manual overhead traveling crane according to claim 1 or 2. 4. The manual according to claim 1, wherein a member (13) having a cross section of a lip channel is fixed to the upper surface of the girder (8) by forming an opening upward and forming a groove (10). Type overhead traveling crane. 5. The manual overhead traveling crane according to claim 1, 3 or 4, wherein the stopper (11) is adjustable in mounting position.