JPH06307172A - Assemblable/disassemblable shutter capable for construction work - Google Patents

Abstract

PURPOSE:To facilitate installing and moving which prevents rainwater, small articles and particulate matters etc., from falling. CONSTITUTION:Both guide rails 5a and 5b are provided with chain drive means 9a and 9b, and the end of a shutter curtain 6 is removably fitted to the chain drive means 9a and 9b. On the other hand, a wind-up means 8 which winds the shutter curtain 6, a driving force transmission means 19 which is removably connected by fitting to chain sprocket wheels 12a and 12b of chain drive means 9a and 9b, and a driving force source 17 which drives the driving force transmission means 19 are stored in a case body 2 which is installed on one edge side of an opening 4 for construction. Ends on one side of the guide rails 5a and 5b are removably fitted with the case body 2, and in the state of being fitted with, the chain sprocket wheels 12a and 12b are connected with the drive force transmission means 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction shutter that can be disassembled and assembled to open and close a construction hole opened on a floor surface of a building under construction which is horizontal or gently inclined.

[0002]

2. Description of the Related Art In a building under construction, a construction hole is often opened on the floor for loading and unloading equipment. It is preferable to close such a construction hole from the viewpoint of safety when unloading and unloading work is not performed.
Various open / close protection devices have been proposed.

For example, in Japanese Examined Patent Publication No. 56-40229, a safety net device for covering the floor opening portion by a net which is moved along a pair of guide rails respectively arranged on the lower surfaces of the opposite edges of the floor opening portion is openable and closable. But again, Shokai 6
JP-A 2-14054 proposes a shutter in which a shutter plate guided by a pair of guide rods extending in parallel with the opening covers the opening so that the opening can be opened and closed.

[0004]

When the floor opening is closed with a net as in the former case described above, it is not possible to prevent rainwater, small articles, dust and the like from falling. The same applies to the latter type of shutter since there is a gap between the shutter plates.

In order to solve such a problem, it is necessary to open and close the opening with a shutter in which small articles such as rainwater and bolts and a large number of slats capable of preventing the fall of dust and the like are flexibly connected. In such a case, since a heavy drive source, a drive force transmission means, etc. are required, there is a concern that the device will be large and heavy.

However, it is desirable that such an opening / closing device is constructed so that it can be easily installed and can be easily removed / moved so as to be reused.

The present invention has been made in view of such circumstances.
It is an object of the present invention to provide a construction shutter that can be easily installed / moved and can be easily disassembled / assembled to prevent rainwater, small articles, dust, etc. from falling.

[0008]

The present invention comprises means for solving the above-mentioned problems as follows. In other words, in a shutter curtain that can be rolled up and paid out along a pair of guide rails arranged on both sides of the construction opening, the construction shutter that can be disassembled and assembled to open and close the construction opening, The guide rail is provided with chain transmission means that moves back and forth in the longitudinal direction thereof, and the tip end portion of the shutter curtain is detachably attached to the chain transmission means, while winding means for winding the shutter curtain, and A case body in which a driving force transmitting unit that is detachably connected to a chain gear of a chain transmitting unit by a concave-convex fitting and a driving source for driving the driving force transmitting unit are installed on one edge side of the construction opening. And one end side of the guide rail is detachably attached to the case body, and, in the assembled state, the chain gear and It is characterized in that the power transmission means is configured to be connected.

[0009]

[Operation] At the time of installation, the case body is placed on one edge side of the construction opening, and the guide rails are arranged on both side edges of the construction opening. One end side of the guide rail is assembled to the case body, and the guide rail is attached to the guide rail. The chain gear of the chain transmission means provided may be connected to the driving force transmission means in the case body by concavo-convex fitting, and the tip of the shutter curtain may be attached to the chain transmission means.

To close the construction opening, the drive source is normally driven to move the chain transmission means toward the other end side via the driving force transmission means, and the construction opening is closed by the shutter curtain. You can

On the other hand, in order to open the construction opening, the drive source may be reversely driven, the shutter curtain may be retracted, and the shutter curtain may be wound up.

On the other hand, in order to remove and move the construction shutter, first, the shutter curtain is removed from the chain transmission means and wound on the winding means, and then both guide rails are removed from the case body, respectively. The separated case body and both guide rails may be individually carried out and moved.

[0013]

An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 shows a construction shutter 1, and reference numeral 2 is a construction opening 4 formed in a rectangular shape on a floor 3 of a building.
A case body that is installed and fixed by anchoring after placing a suitable seat on one edge of the
Guide rails a and 5b are detachably assembled to both side surfaces of the case body 2 by bolting (see FIG. 4), and fixed on the floor surface 3 by the anchor driving after being horizontal as described above. Reference numeral 6 is a shutter curtain that moves back and forth along the guide rails 5a and 5b. A large number of slats 7, ... Are flexibly connected to each other to form a tight closed state, not to mention small articles and dust. It is also suitable for safety and hygiene management because it can block rainwater.

The base of the shutter curtain 6 is the case body 2.
Winding means 8 with return spring housed inside (see FIG. 6)
On the other hand, both ends of the slat 7 at its tip end are connected to the endless chains (chain transmission means) 9a, 9b provided in the guide rails 5a, 5b by connecting members 10, 10 fixed to the inside by bolts. -The nuts are fastened detachably (see Fig. 2), and both endless chains 9a and 9b are drive side sprockets (chain gears) 12a, which are supported by the case mounting side ends of the guide rails 5a and 5b. 12b (see FIG. 7) and the driven side sprockets 13a and 13b (see FIGS. 2 and 6) supported by the tips of the guide rails 5a and 5b, and wound around the case body 2 as described later. A motor (driving source) 17 (see FIG. 6) provided in one side portion is driven to move back and forth.

More specifically, the above-mentioned drive side sprockets 12a and 12b can be detachably attached to both ends of a counter shaft (driving force transmitting means) 19 which is rotatably supported on the lower front side in the case body 2 by concave and convex fitting. Are connected to each other so as to rotate synchronously, and one driving side sprocket 12a
A drive sprocket 21 (see FIG. 7) fixed to the output shaft of the motor 17 and a driven sprocket 23 that is transmission-coupled via a chain 22 are fixed to the pivot shaft of the motor 17. Rotational driving force is transmitted to the sprockets 12a and 12b, and the forward rotation of the shutter curtain 6 advances the shutter opening 6 to close the construction opening 4, while the reverse rotation drive retracts it to open the construction opening 4.

The other drive side sprocket 12b
A sprocket 25 fixed to the rotating shaft of a first limit switch 24 (see FIG. 7) provided in the other side portion of the case body 2 and a sprocket 27 transmission-coupled via a chain 26 are fixed to the pivot shaft of the. The open / close state of the shutter curtain 6 is detected by the first limit switch 24, and the motor 17 can be automatically stopped at the open position or the closed position [see FIG. 5 (A)]. In FIG. 5 (A), reference numeral 28 indicates a bearing fixed to the guide rail 5b, 29 indicates a bearing fixed to the case body 2, and reference numeral 30 in FIG. 5 (B) indicates a bearing fixed to the guide rail 5b. A support shaft and c are chain covers. The bearing structure of the other guide rail 5a is also configured to be substantially symmetrical to this, but the illustration is omitted.

Both ends e of the counter shaft 19 described above
(See FIG. 3) is formed in a quadrangular prism shape, and a square hole-like fitting for detachably fitting the end e to the inside of the drive side sprockets 12a, 12b corresponding to each end e. A dowel hole h is formed by this, so that at the time of installation, both drive side sprockets 12a, 12b can be easily fitted to both ends e, e of the counter shaft 19 from the outside so that both drive side sprockets 12a, 12b 12b can be connected, and can be easily removed when moving for removal.

On the other hand, an openable and closable fence 31 combined with an aluminum pipe is erected on the other end side of the construction opening 4 (see FIG. 1).
Second limit switch provided on the open / close end side.
An interlock circuit capable of starting the motor 17 and opening the shutter curtain 6 only when the fence 31 is closed by 32 is provided in the control system of the motor 17 to ensure safety.

Both guide rails 5a and 5b are, as described above,
Counter shaft 19 with both drive side sprockets 12a, 12b
Are fitted and connected to both end portions e, e of the base, and the base flanges f, f can be detachably assembled to the side portions of the case body 2 by bolt fastening (see FIG. 4), and both guides thereof. The rails 5a and 5b and the fixed angle n attached to the case body 2 can be fixed to the floor surface 3 by anchoring or the like.

In order to install the construction shutter 1 constructed as described above, first, the case body 2 is placed on the floor surface 3 at one end of the construction opening 4, and the floor surface 3 is fixed by anchoring or the like. After fixing to the upper side, guide rails 5a and 5b are arranged on the floor surface 3 at both side edges of the construction opening 4, and the fitting holes h and h of the drive side sprockets 12a and 12b are respectively provided at both ends of the counter shaft 19. After fitting to e, the bolts are fastened to the base flanges f, f of both guide rails 5a, 5b.
To the case body 2 and then both guide rails 5
A and 5b are fixed to the floor surface 3 by anchoring. After that, both ends of the shutter curtain 6 are fixed to the connecting members 10, 10 attached to the endless chains 9a, 9b by bolting. Then, the poles of the handrails 33, ... Are fitted into both guide rails 5a, 5b and the receiving holes provided in the case body 2 to stand upright, and the fence 31 may be set up on the other end side of the construction opening 4. .

The case body 2 and both guide rails 5a, 5 described above.
b, handrail 33, ... and fence 31 can all be carried in separately,
As described above, it can be assembled in a good manner, and can be easily carried in and installed even in the construction opening opened in a higher floor. Also, when removing or moving, it can be easily disassembled and carried out in the reverse order of the installation. Needless to say, the construction shutter of the present invention can be used not only in the horizontal direction but also in a construction hole formed in a gently inclined floor surface.

A push-pull chain may be used instead of the endless chains 9a and 9b, and a coupling may be used to connect the counter shaft 19 and the drive side sprockets 12a and 12b.

[0023]

As described above, according to the construction shutter which can be disassembled and assembled according to the present invention, the chain transmission means is provided on the guide rail, and the tip of the shutter curtain can be detachably attached to the chain transmission means. On the other hand, the case body is provided with a winding means for winding the shutter curtain, a driving force transmitting means detachably connected to the chain gear of the chain transmitting means, and a drive source for driving the driving force transmitting means. And one end of the guide rail is detachably assembled to the case body, and in the assembled state, the chain gear and the driving force transmitting means are connected, so that both guide rails, The case body and the case body can be handled separately, which makes it easy to carry in and out, and also easy to install and remove. Moreover, it is possible to prevent rainwater, small articles, dust, and the like from falling, thus improving safety.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a disassembly / assembly-free construction shutter according to the present invention.

FIG. 2 is a perspective view of the guide rail viewed from the inside.

FIG. 3 is a perspective view showing a correspondence between the same-chain gear and a driving force transmitting means for fitting in a concavo-convex shape.

FIG. 4 is a perspective view of an assembly portion of the guide rail and the case body.

5A is a sectional view taken along line XX of FIG. 2, and FIG.
Is a sectional view taken along the line YY of FIG.

6 is a cross-sectional view taken along the line WW of FIG.

7 is a sectional view taken along the line ZZ of FIG.

[Explanation of symbols]

2 ... Case body, 3 ... Floor surface, 4 ... Construction opening, 5a, 5b ... Guide rail, 6 ... Shutter curtain, 8 ... Winding means,
9a, 9b ... Chain transmission means, 12a, 12b ... Chain gears, 17 ... Drive source, 19 ... Driving force transmission means.

Claims (1)

[Claims] 1. A shutter curtain that can be wound up and out and that moves along a pair of guide rails arranged on both sides of the construction opening, and is a construction shutter that can be opened and closed to open and close the construction opening. The guide rail is provided with chain transmission means that moves back and forth in the longitudinal direction, and the tip end portion of the shutter curtain is detachably attached to the chain transmission means, while the winding means winds the shutter curtain. A driving force transmitting means that is detachably connected to the chain gear of the chain transmitting means by concave and convex fitting, and a driving source for driving the driving force transmitting means are installed on one end edge side of the construction opening. The guide rail is housed in a case body, one end side of the guide rail is removably assembled to the case body, and the chain gear is in the assembled state. A construction shutter that can be disassembled and assembled freely, characterized in that it is configured so that the driving force transmission means and the driving force transmission means are connected.