JPS5829113Y2 - hoist running device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a hoist traveling device such as a hand-propelled type electric hoist or a chain-driven type electric hoist.

A conventionally known traveling device for a hand-held electric hoist will be explained with reference to FIG.

In the figure, reference numeral 1 denotes a support frame for the electric hoist main body, to which an electric motor with an electromagnetic brake is connected at one end, a reduction gear is connected to the other end, and a winding drum connected to the reduction gear is approximately attached to the inner periphery. It accommodates many people.

(None of these are shown) Hereinafter, the support frame, the electric motor with an electromagnetic brake, the speed reduction device, and the winding drum will be collectively referred to as the hoist main body.

Reference numeral 2 denotes a support member consisting of a substantially U-shaped side plate in which a base portion 2a is connected to the support frame 1 by bolts 3, and the lower portion in the figure is open.

2b & An axle coupling portion coupled to the carrier base portion 2a, and two pairs of through holes 2c are formed concentrically at intervals in the axial direction of the hoist body.

A pair of axles 4 are loosely fitted into the two pairs of through holes 2c, and a fitting groove 4a is provided at one end of the axle.

Reference numeral 5 denotes a rotation preventing member for the axle 4, whose inner circumference is fitted into the fitting groove 4a and whose outer edge is connected to the axle coupling portion 2b by a bolt 6; I is a pair of wheels having a drum-shaped outer shape; It is rotatably supported by a pair of axles 4 via respective pairs of ball bearings 8.

9 is the maximum diameter of the wheel I, and 9 is a pair of spacers fitted to the pair of axles 4, one end surface of which abuts the inner end surface of the support member 3, and the other end surface of which abuts the ball bearing 8. is in contact with.

Reference numeral 10 denotes a rail with a circular cross section, which is installed inside a building, for example, on which the pair of cars and the 'pa' wheels 7 are placed.
0 in the axial direction to move the hoist body.

0 is the distance from the axes of the pair of axles 4 to the lower end of the rail 10 of the support member 2 before the opposing surface, and 0 is the distance from the rail 1
It has a diameter of 0.

In addition, it is formed so that (Q-'''/<D).

In the case configured as described above, a case where the hoist main body is attached to the rail 10 via a pair of wheels γ will be explained.

Connect the traveling device to the hoist body as shown in Figure 1,
A wire rope is suspended between the hoist body in which the rail 10 is inserted into the curved part of the pair of wheels 1 and the husband of the rail 10, and the hoist body and the rail 10 are lifted simultaneously, and the rail 10 is installed at a high place in the building. It will be combined with.

Since this kind of installation work is to be done, the hoist body and rail 1
0 must be hoisted to a high place at the same time, which is not only bad for work efficiency, but also the heavy hoist body is already suspended from the rail 10 when the rail 10 is erected at a predetermined location at a high place, making it very difficult to work. It was dangerous.

The reason why (C)-CA)/<D is formed is to prevent the pair of wheels I from coming off the rail 10.

This invention was made in an attempt to eliminate the drawbacks of the conventional hoist traveling device described above, and one embodiment of this invention will be described with reference to FIG.

In the figure, reference numeral 11 denotes a derailment prevention member having an angular cross-section, one end of which is connected to one end of the support member 2 by a bolt 12, and the other end bent portion 11a is connected to the lower end surface of the rail 10 through a predetermined gap. They are facing each other.

(B) is the distance from the axis of the axle 4 to the surface 1 of the bent portion 11a of the derailment prevention member 11 facing the rail 10.

In addition, B (Ashi <Q)), (C)-”, Shi 〉02 It is configured so that

The rest of the configuration is the same as that of the conventional device, so the explanation will be omitted.

In the device configured as described above, a case will be described in which the hoist body is attached to the rail 10 via the pair of wheels 7.

Rails 10 are constructed at predetermined locations within the building.

Next, with the bolts 12 loosened and the derailment prevention member 11 removed from the support member 2, as shown in FIG. The maximum diameter part of the pair of wheels 7 is the rail 1
Place the hoist body on the rail 1 while it is higher than the top surface of 0.
0 side, and place the pair of wheels I on the rail 10.

Next, the derailment prevention member 11 may be coupled to the support member 2 with bolts 12.

The reason why the above-mentioned hoist main body and traveling device can be lifted with the maximum diameter part of the pair of wheels I being higher than the upper surface of the rail 10 is because of the above-mentioned configuration <C)''/>0). be.

Furthermore, the reason why the derailment prevention member 11 can prevent the pair of wheels I from coming off the rail 10 is as described in (B)-'''
This is because the configuration is such that / < (1).

Although this embodiment has been described using a pair of wheels 7, the present invention is not limited to this embodiment. For example, the number of axles 4 may be three and the number of wheels 7 may be three.

Although the shape of the wheel 7 is described as being drum-shaped, if the cross section of the rail 10 is, for example, cubic or rectangular, it may be any shape that matches the shape of the rail 10 and can run smoothly along the rail 10. Of course.

Generally, the drive source for the hoist body is not limited to an electric motor.

This invention is constructed as described above, and includes a wheel derailment prevention member that is detachably connected to a support member, and the maximum diameter of the wheel is (8) from the center of rotation of the wheel to the lower end surface of the rail of the derailment prevention member. (B) is the distance between the center of rotation of the wheel and the lower end surface of the rail of the supporting member at the opposite surface (Q).
, when the height of the rail is set to 0, (B) -9 (D)
C) -CA'/>CD) 2, it is possible to install the hoist body and traveling device together on the existing rail, which improves work efficiency and improves work safety. This has the effect of significantly improving

The anti-rolling function is the same as the conventional device.

[Brief explanation of drawings]

Figure 1 is a partially sectional side view of a conventional hoist traveling device.
FIG. 2 is a partially sectional side view showing an embodiment of this invention. In the figure, 1 is a support frame, 2 is a support member, 4 is a pair of axles, and 7
are a pair of wheels, 8 is a ball bearing, 9 is a spacer, 10 is a rail, 11 is a derailment prevention member, 12 is a bolt, (8 is the maximum diameter of the wheel, (B) is a derailment prevention member from the center of rotation of the wheel) 0 is the distance from the center of rotation of the wheel to the lower end surface of the rail of the supporting member on the opposing surface 1, and 0 is the height of the rail. The same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims for Utility Model Registration] A support frame for a hoist main body, a support member whose one end is connected to the support frame and which has a required opening at least on the side opposite to the support frame, and a support member that can be detachably attached to the support member. At least a pair of axles coupled together and spaced apart from each other at right angles to the axial direction of the rail, a wheel rotatably supported by the axle and running on the rail, and detachable from the support member. A derailment prevention member is freely coupled and faces the lower end surface of the rail with a gap, the maximum diameter of the wheel is A, and the distance from the center of rotation of the wheel to the surface 1 of the derailment prevention member opposite the lower end surface of the rail. When the distance is B, the distance from the center of rotation of the wheel to the lower end of the support member's rail on the opposing surface casing is C1, the height of A A of the rail is D, then B-/2〈D, C-/2〉D A hoist traveling device characterized by: