JPH078717Y2 - Rolling tower - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rolling tower as a mobile scaffold.

[Conventional technology]

FIG. 6 shows an example of a conventional rolling tower. In the figure
1 ₁ , 1 ₂ ... 1 _n is a ladder formwork used in frame scaffolding, etc. This ladder formwork connects columns on both sides up and down via connecting pins 2. In this way, the ladder forms 1 ₁ , 1 ₂ ... 1 _n having a plurality of upper and lower stages are made to face each other at a predetermined interval, and the side portions of the ladder forms of the same level stage which face each other are crossed with each other. The whole is framed in a rectangular tower shape by connecting them.

The mounting of the universal wheels 4 at the bottom of each side strut lower end of the ladder frame 1 _1, whereas over by arranging a plurality of fabric plate 5 having a hook 5a to the end between the uppermost ladder frame 1 _n upper Pass to form work floor.

Further, the handrail support columns 6 are erected on both side supports of the uppermost ladder form 1 _n , and handrails 7 are hung on the handrail support columns 6 to surround the upper circumference of the work floor.

Reference numeral 8 in the drawing denotes an outrigger for preventing the entire body from toppling over, but there are various types, and the wheel 4 may be provided on the outrigger 8 or a jack base may be attached. In addition, reference numeral 9 in the drawing denotes an arm lock, which ensures the reliability of connection between members.

[Problems to be solved by the device]

In such a rolling tower, a lifting ladder formwork
1 ₁ , 1 ₂ ... 1 _n horizontal rail members 10 will be used from outside the tower. In addition, according to the safety technical standards for mobile scaffolding, it is stipulated that two or more persons cannot move up and down from the same plane at the same time in order to prevent falls.

In addition, since it is a ladder type and there is no tread, it is always a cross member.
It is necessary to support the grip of the hand with respect to 10, and it is forced to have an extremely unstable posture with the luggage, and the handrail 7 is passed over to move from the external space as the hoistway to the work floor. It has to be done, and in that case it is in a dangerous state.

The object of the present invention is to eliminate the inconvenience of the conventional example, and by adding the necessary minimum members, the inside can be used as a hoistway to safely ascend and descend even with luggage in one hand, and the members constituting this hoistway. It acts as a structural member for a frame and has higher strength than conventional ones, and can be used as a leg rest when assembling and disassembling, thus providing a rolling tower with improved safety.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention has a structure in which ladder molds which are continuous in a vertical direction are opposed to each other, and the side parts of the ladder molds which are opposed to each other are connected to each other by cross braces to form the whole frame, and the bottom of the ladder molds in the lowermost stage. In the rolling tower in which wheels are provided on the uppermost ladder form and a cloth plate is hung between the upper ends of the ladder formwork to form a working floor, the cloth plates are formed between the upper ends of the ladder formworks facing each other below the uppermost stage. At the center position, and at the left and right positions, one end of the cloth plate is an end of the staircase that goes up and one that goes down so as to connect the upper end position and the lower end position of the opposite ladder formwork. The gist of the present invention is that the cloth plates that are located right above the stairs among the cloth plates that serve as the work floor are openable and closable so that they can be arranged side by side.

[Action]

According to the present invention, the worker can move up and down by the stairs inside the frame, and it is not necessary to support it manually like a ladder, so that the worker can safely move up and down while carrying luggage. Further, since the hoistway is provided inside as described above, there is no risk of the center of gravity approaching only one side of the rolling tower, and there is no risk of falling.

When you reach the top of the stairs, you can open a part of the cloth plate that serves as the work floor and safely exit the work floor from the inside.

It is also possible to use the external space as a hoistway like a ladder as in the conventional case, and the hoistway formation range is expanded.

And, when going up and down on the stairs, the cloth boards of each step can be used as a landing, and this cloth board can also be used as a foothold when assembling and disassembling.

Further, the cloth plate and the stairs also serve as a connecting member for the ladder forms facing each other, which is a marked difference in frame strength as compared with a conventional rolling tower connected only by braces.

Especially, it is sufficient to use only one end side of the cloth plate that becomes the landing, and it is not necessary to move on the cloth plate from one end to the other. A hoistway can be obtained.

〔Example〕

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view showing a first embodiment of a rolling tower of the present invention, and FIG. 2 is a perspective view of a main part of the rolling tower of the present invention. did.

That is, the ladder forms 1 ₁ , 1 ₂ , ... 1 _n that are connected vertically with connecting pins 2 are made to face each other, and the side faces of the ladder forms that are facing each other are connected by cross braces 3 to form an overall frame. it provided a wheel 4 under the ladder frame 1 ₁ at the lowest, and to form a working floor spanned cloth plate 5 between the upper end of the ladder frame 1 _n of the uppermost, the ladder-type frame 1 _n Providing a handrail 7 on top,
And the like providing the outrigger 8 on both sides pillar of the lowermost ladder frame 1 ₁ is the same as the conventional example.

In this example, the one for ordinary frame scaffold (width 1.
219) with a slightly larger width (1.524 width), the wheel 4 has a screw jack 4a, and the outrigger 8
Has a jack base 8a. Also, the handrail 7
The handrail frame 11 (a frame in which the support and the handrail are integrated) is connected to the ladder frame 1 _n , and the handrail frame 11 is bridged between the frames 11.
In the figure, 9 is an arm lock, and 12 is a skirting board set at the lower end of the handrail frame 11.

In addition to the configuration described above, the present invention has a hook 5a at the center position between the upper ends of the ladder forms 1 ₁ , 1 ₂ ... 1 _{n-1 on} each stage below the top ladder form 1 _n. Over the cloth board 5,
At the left and right positions, the stairs 13 were laid across so as to connect the upper end position and the lower end position of the ladder formwork which face each other. As shown in FIG. 2, this staircase 13 has a step plate 13c fixed between side girder members 13b having hooks 13a at the ends, similar to those used in ordinary frame scaffolding. The hooks 13a are ladder formwork. Hook the crosspiece member on the upper end of the.

Note that the relationship between the cloth plate 5 and the stairs 13 is such that the left and right stairs 13 are all arranged in the same direction with the cloth plate 5 in the middle, and for example, the upper ends of the lower stairs 13 are arranged next to one end of the cloth plate 5. Then, the stairs 13 at the upper end may rise from the other end of the cloth plate 5, but in the present embodiment, the stairs 13 at the upper and lower stages are staggered in a staggered manner and the lower and lower ends of the upper stage. The upper end of the lower tier toward the end is arranged side by side at one end of the cloth plate 5.

By doing so, the stairs 13 are arranged in a staggered pattern due to the upper and lower stages, and when the cloth board 5 is used as a landing,
It suffices to use only one end of the cloth plate 5 with 13 edges lined up,
The movement lines for raising and lowering are the minimum necessary.

In the ladder form 1 _{n at the} bottom, special stair bridges 14 are attached to the lower parts of the columns on both sides (this is not shown, but short vertical sheath pipes are attached to both ends of the horizontal pipe, and the vertical sheath pipes To be sandwiched between the screw jacks 4a of the wheel 4)
The lower end of the stairs 13 is received by the stair bridge 14.

In addition, another cloth plate 5 is arranged next to the central cloth plate 5 on the opposite side of the stairs 13 to secure a wide rising opening.

On the other hand, among the cloth plates that serve as the work floor to be hung between the upper ends of the uppermost ladder formwork 11, _one of the cloth plates may be the same as the lower cloth plate 5, so that the cloth immediately above the stairs 13 below it. The plate 15 can be opened and closed by a hinge 15b with respect to the cloth frame 15a. 15 in the figure
Reference numeral c denotes a receiving plate provided on the cloth frame 15a, which receives the cloth plate 15 on the side opposite to the hinge 15b, and the cloth plate 15 is opened only by rotating upward with respect to the cloth frame 15a.

Further, between the cloth frame 15a and the cloth plate 5, a narrow cloth plate 5 '(cloth plate 5
The width is about half of that).

In this way, the worker uses the stairs 13 to go up and down, flip up the cloth plate 15 to come out onto the uppermost cloth plates 5, 5 ′, and then close the cloth plate 15, Work on '15.

Further, when moving from the stairs 13 to another staircase 13, the cloth plate 5 located in the center can be used as a landing, and the cloth plate 5 can also be used as a foothold when assembling and disassembling the rolling tower.

FIG. 4 and FIG. 5 are perspective views of a main part showing a second embodiment of the present invention, in which the cloth plates 5 that are bridged over the center positions between the upper ends of the ladder forms which face each other are omitted, and the ladder types which face each other are shown. When crossing the stairs 13 so as to connect the upper end position and the lower end position of the frame,
The stairs 13 are arranged side by side on the horizontal cross member of the ladder form, the ends of which are the same at the top and bottom.

Since the cloth plate 5 is eliminated, there is no part corresponding to the landing, but the upper and lower stairs 13 have their ends aligned in the intersecting direction, which does not hinder the movement.

In the case of the second embodiment, the ladder forms 1 ₁ , 1 ₂ ... 1 _n are narrower than those of the first embodiment (for example, the width is 1.21).
9) is good. Also, the intermediate cloth plate 5'can be omitted in the uppermost work floor portion.

[Effect of device]

As described above, since the rolling tower of the present invention has the hoistway with stairs inside, it can be safely hoisted while carrying a baggage in one hand or by a plurality of people in a row. Moreover, the additional members for forming the hoistway are rationally combined so as not to take up a minimum space, and the additional members act as a structural member for the frame, and are more than conventional ones. Also has excellent strength,
Furthermore, it can be used as a footrest during assembly and disassembly.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a rolling tower of the present invention, FIG. 2 is a perspective view of an essential part of the same, FIG. 3 is an exploded perspective view of the essential part of the same, and FIG. 4 is a second embodiment. FIG. 5 is an exploded perspective view of the same main part as above, and FIG. 6 is a perspective view showing a conventional example. 1 ₁ , 1 ₂ …… 1 _n …… Ladder formwork 2 …… Coupling pins 3 …… Crossed lines 4 …… Wheels 4a …… Screw jacks 5,5 '…… Fab 5a …… Hooks, 6 …… Handrail support 7 …… Handrail, 8 …… Outrigger 8a …… Jack base, 9 …… Arm lock 10 …… Horizontal cross member, 11 …… Handrail frame 12 …… Baseboard, 13 …… Stairs 13a …… Hook, 13b …… Side girder material 13c …… Tread plate, 14 …… Stair support 15 …… Cloth plate, 15a …… Cloth frame 15b …… Hinge, 15c …… Support plate

Claims (1)

[Scope of utility model registration request] Claims: 1. Ladder formwork in which upper and lower continuous ones are opposed to each other, and side faces of the ladder formwork that are opposed to each other are connected by cross braces to form an entire frame, and wheels are provided below the ladder formwork at the bottom stage. Also, in a rolling tower in which a cloth plate is laid across the tops of the uppermost ladder formwork to form a working floor, the cloth plate is hung in the center position between the upper ends of the ladder formworks facing each other below the topmost stage. At the left and right position, the ends of the stairs going up and the ones going down so as to connect the upper end position and the lower end position of the opposite ladder formwork are arranged on the left and right of one end of the cloth plate. A rolling tower, which is characterized in that the cloth plate that is placed directly above the stairs can be opened and closed.