JPH086542B2 - Hanging device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspension type moving ladder in which a ladder is suspended substantially vertically and travels along a guide rail, and a suspension in which a scaffold is suspended and travels along a guide rail. In particular, the present invention relates to a suspension device used for a suspended mobile object, such as a mobile scaffold, which is suspended by a runner and horizontally travels along a guide rail.

[0002]

2. Description of the Related Art A conventional suspension device will be described with reference to FIGS. The conventional suspension device is a two-wheel type runner (not shown), or a four-wheel type runner 40 as shown in each of the above figures, in which a support bolt 42 is provided directly below a stand 41 of the runner 40. A suspended object 44 such as a ladder or a scaffold was attached to the support bolt 42. This runner runs inside a frame-shaped guide rail 46 attached to a base (steel frame) 49 provided on the side wall 45 of the building, and projects the support bolt 42 from an opening groove 48 bored in the bottom surface 47 of the guide rail 46. The suspended object 44 is supported and moved right below the runner 40.

[0003]

However, since the conventional suspension device suspends the suspended object 44 just below the frame-shaped guide rail 46 provided in the building as described above, The hanging object 44 is too close to the side wall 45 of the object, and it is difficult to carry out the work when cleaning the window. Further, since the suspended object 44 is suspended right under the four-wheeled runner 40, when the traveling of the suspended object 44 is started, a person pushes below the suspended object 44 to apply a force in the direction of arrow A. 9, when one of the two wheels 43, 43 of the runner 40 is lifted up, and only the other two wheels 43 ', 43' of the suspended object 44 are moved, as shown in FIG. There is a drawback in that the load is applied, the four wheels are not evenly loaded, and sometimes the upper wall of the guide rail 46 is hit like a twist so that the wheel becomes very heavy and the vehicle cannot travel lightly. Further, the two-wheel type is difficult to suspend a suspended object having a large load (50 kg or more), lacks safety and stability, and the runner itself when starting traveling. However, there was a drawback that the bottom wall of the guide rail hits the upper wall of the runner stand. The present invention aims to overcome the above drawbacks.

[0004]

In order to achieve the object, the present invention starts light traveling when the load is always evenly applied to the vertically oriented wheels provided on the runner even when the traveling traveling of the suspension device is started. Based on the technical idea that it is possible to form a guide rail as a frame, an opening groove is formed in its side wall, and a plurality of vertically oriented wheels with runners provided on both sides of the platform and a plurality of horizontally oriented wheels provided on the upper side of the platform are formed. A support shaft for supporting the suspended object in a cantilevered manner is loosely fitted to the runner's mount so that the support shaft itself can rotate (rotate) with respect to the runner's mount.

The concrete structure is as follows: In a suspension device comprising a guide rail 6, a runner 2 running in the guide rail, and a support shaft 20 for cantilever supporting a suspended object provided on the runner. The rail 6 is formed in a frame shape having a substantially quadrangular cross-section, and one side wall 10 thereof is provided with an opening groove 11 through which a support shaft provided in the runner can project, along the length direction of the guide rail. A pedestal 17 and at least four longitudinal wheels 18, 18 'provided on both sides of the pedestal,
At least two lateral wheels 1 on the upper side of the frame
9 and the support shaft 20 is provided at the approximate center of the runner's mount.
Is a suspending device in which one side is protruded and one side is loosely fitted.

[0006]

According to the suspending device of the present invention, the suspended object is cantilevered and supported by the support shaft projecting from the opening groove of the side wall of the frame-shaped guide rail and loosely fitted to the runner stand. When pushed in the moving direction in the state, the support shaft loosely fitted to the runner base only rotates (spins) and the runner itself does not float up on one side, and the load is applied evenly to each vertically oriented wheel. , Each vertically oriented wheel evenly contacts the bottom surface of the guide rail to start traveling lightly.

[0007]

EXAMPLE An example of the suspension device of the present invention will be described below with reference to FIGS.
6 will be described.

As shown in FIG. 5, the moving ladder 1 comprises a runner 2 and a ladder 3 of the suspension device, and the ladder 3 comprises a frame 4 and a step rail 5. The moving ladder 1 is suspended by a runner 2 and runs along a guide rail 6. In this case, when a person rides on the ladder 3, sideways wheels (not shown) are provided on the side wall of the lower end frame 7 so as to prevent the building from leaning toward the side wall 13 and serve as a lower guide rail. L
It is convenient to provide a lower guide mechanism so as to contact the vertical wall of the mold frame 8. However, when the ladder 3 is short, the lower guide mechanism may not be provided.

The suspension device 9 includes a guide rail 6 and a runner 2.
Composed of and. As shown in FIGS. 3 and 4, the guide rail 6 has a frame shape with a substantially rectangular cross section, and one side wall 10
An opening groove 11 is bored along the length direction.
Further, the guide rail 6 has a side wall opposite to the side wall 10,
Bolt mounting opening grooves 12, 1 along the length direction
2, the guide rail 6 is attached by bolts 16 to the plurality of brackets 15 attached to the base (steel frame) 14 provided on the building side wall 13 through the bolt attachment opening grooves 12, 12. It should be noted that the guide rails 6 can be mounted by the bolt mounting opening grooves 12, 12 regardless of the positions of the plurality of brackets 15 mounted.

As shown in FIGS. 1, 2, and 4, two runners 2 are provided on each of the mount 17 and one side of the mount, for a total of 4 runners.
The vertical wheels 18, 18, 18 ', 18' are provided individually, and the two lateral wheels 19, 19 'are provided on the upper side of the gantry. At the center of the frame 17 of this runner 2,
The supporting shaft 20 for suspending the ladder 3 is provided sideways by loose fitting through the hole 23, and the supporting shaft 20 projects in one side direction.
Is cantilevered. This support shaft 20
Is removed by an E-ring or a C-ring 22 that fits into the large-diameter portion 21 and the circumferential groove provided in the support shaft 20, and is loosely fitted to the pedestal 17, and the support shaft 20 rotates freely (rotates).
To do. Further, the ladder 3 is attached to the support shaft 20 by being fastened with a nut 25 by a bracket 24 provided on the upper side of the ladder 3.

Reference numeral 17 'in FIG. 1 denotes a fitting groove for mounting a cleaning tool, and dust, tree branches and grass carried by birds are removed from the bottom surface 6'of the guide rail 6 in this fitting groove. A cleaning tool (not shown) or the like is attached. This cleaning tool is a guide rail 6
It is a plastic plate or a brush having the same shape as the bottom surface 6 '. With this cleaning tool, the bottom surface 6'of the guide rail 6 is cleaned every time the runner moves.

The structure of the movable suspension device including the guide rail and the runner has been described above. The operation and effect thereof will be described below.

The moving ladder normally has a length of 6 to 7 m, and when a person pushes the lower part of the ladder in the direction of arrow B (FIG. 5) or in the opposite direction, it runs along the guide rail 6. When it is pushed in the direction of arrow B (FIGS. 5 and 6) at the start of the traveling, the support shaft 20 that freely rotates (rotates) is provided on the pedestal 17 of the runner 2, so that the dotted line in FIG. As shown by, the runner 2 keeps the horizontal state only by tilting the frame 4 of the ladder 3, and the vertical wheels 18, 18, 1
The load of the ladder 3 on 8'and 18 'is equalized,
Each of the vertically oriented wheels 18, 18, 18 ', 18' comes into contact with the bottom surface 6'of the guide rail 6 evenly, so that the vehicle immediately and lightly starts traveling. At this time, since the support shaft can rotate (rotate) freely, one side 1 of the vertically oriented wheel of the runner 2
Also, 8 and 18 do not float up and hit the upper side wall of the guide rail.

The lateral wheels 19 and 19 'are in contact with the side wall 10 of the guide rail 6 and serve to smoothly run the ladder 3 supported by the support shaft 20 in a cantilevered state.

Further, since the ladder 3 is supported by the support shaft 20 projecting from the side wall 10 of the guide rail 6, it is possible to prevent the side wall 13 of the building from being excessively approached.

Although one embodiment of the present invention has been described above, as another embodiment, 6 to 8 vertical wheels and 3 horizontal wheels are provided.
There may be a plurality of pieces such as 6 pieces, and the support shaft 20 may be provided with a bracket 24 for attaching the ladder 3 to the nut 2.
It is also possible to loosely fit and rotate freely instead of fixing at 5. Also, a bracket 15 for mounting the guide rail 6 is provided on the base 14 on the side wall 13 side rather than the one shown in FIG. It is also possible to provide them close to each other.

Further, the suspension device of the present invention is used not only for a moving ladder but also for a moving scaffold, and in this case, for example, cantilevered two runners 2 which are provided separately in a guide rail. support It is used in such a way that a person is placed on the upper two side walls of the indoor and the plate-shaped body is hung and supported between two sets of hanging frames so that a person can ride and work on the plate-shaped body. This mobile scaffold is convenient for cleaning and repairing indoor ceilings.

[0018]

According to the present invention, the guide rail is formed in the shape of a frame having a substantially quadrangular cross section, and the side wall of the guide rail is provided with an opening groove through which the support shaft can project so as to extend along the length of the guide rail. Since the runner was formed by a pedestal, a plurality of vertically oriented wheels provided on both sides of the pedestal, and a plurality of laterally oriented wheels provided on the upper side of the pedestal, the runner was cantilever-supported by the runner. It can be moved and run along the guide rail.
In addition, since the support shaft is installed in the center of the runner's base in a loosely protruding manner in one direction, even if a suspended object with a large load is attached to the support shaft, at the start of its traveling movement,
When the lower side of the suspended object is pushed in the running direction, the support shaft can rotate (rotate), so the runner base itself does not tilt, and the load applied to each vertically oriented wheel can be evenly divided. It is possible to start moving and running lightly and smoothly.

[Brief description of drawings]

FIG. 1 is a side view of a runner. 1 to 6 are explanatory views of the embodiment of the present invention.

FIG. 2 is a front view of a runner.

FIG. 3 is a sectional view of a guide rail.

FIG. 4 is a cross-sectional view of a suspension device attached to a side wall of a building.

FIG. 5 is an overall front view of a state in which the suspension device is attached, in which a side wall 10 of the guide rail 6 having an opening groove is omitted.

FIG. 6 is an operation explanatory view of the suspension device of the present invention.

FIG. 7 is a perspective view of a conventional runner.

FIG. 8 is a cross-sectional view of a conventional hanging device in a mounted state.

FIG. 9 is an operation explanatory view of a conventional hanging device.

[Explanation of symbols]

 1 Moving Ladder 2 Runner 3 Ladder 6 Guide Rail 9 Suspension Device 10 Side Wall (Side Wall of Guide Rail) 11 Opening Groove 12 Opening Groove for Bolt Installation 13 Side Wall of Building 14 Base 15 Bracket 17 Stand 18, 18 'Vertical Wheels 19 and 19 'Sideways wheels 20 Support shaft 21 Large diameter part 22 E ring, C ring 23 Hole 24 Bracket 25 Nut

Claims (4)

[Claims] 1. A suspension device comprising a guide rail, a runner traveling in the guide rail, and a support shaft for cantilever support of a suspended object provided on the runner, the guide rail having a substantially rectangular cross section. It is formed in a frame shape, and on one side wall, an opening groove is provided along the length of the guide rail in which the support shaft provided in the runner can project, and the runner is provided on the pedestal and on both sides of the pedestal. And four vertical wheels and at least two lateral wheels provided on the upper side of the pedestal, and the support shaft is projected in one direction in the runner approximately central part of the runner. A suspending device characterized by being fitted horizontally. 2. The suspension device according to claim 1, wherein the runner comprises a total of four vertical wheels, two on each side of the gantry, and two lateral wheels on the upper side of the gantry. 3. The suspension device for a moving ladder according to claim 1, wherein the suspended object is a ladder. 4. The suspension device for a mobile scaffold according to claim 1, wherein the suspended object is a scaffolding support frame.