JP2004076300A - Electric shutter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electric shutter allowing wiring work to be efficiently performed without being obstructed by the shutter. <P>SOLUTION: In this electric shutter, a shutter body having a drum 16 and a motor driven with power fed through a cable wired from an operation device installed indoors and rotating the drum is installed in a shutter box. The cable is divided into a shutter body side cable having one end connected to the motor and a building side cable having one end connected to the operating device indoors. The other end of the shutter body side cable and the other end of the building side cable are connected between the top plate of the shutter box and the drum, and a wiring space for storably holding the connection part and an excess portion thereof in the vicinity thereof is formed in the shutter box. A cable holder for storably holding the connection part and the excess portion thereof in the vicinity thereof is slidably fitted in the wiring space. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electric shutter, and more particularly to an electric shutter wired in a shutter box.
[0002]
[Prior art]
Generally, an electric shutter is rotatably mounted in a shutter box, and is provided in the shutter box with a winding drum for winding or rewinding a shutter formed by connecting a number of horizontal slats, A motor for rotating the winding drum.
Then, in order to drive the motor, a cord for supplying power and control to the motor is wired from an operating device provided indoors, and the cord usually has a shutter having one end connected to the motor. It is divided into a main body side cord and a building side cord having one end connected to the indoor operation device. Therefore, when attaching the shutter box to the building, it is necessary to connect the shutter body side cord and the building side cord.
[0003]
In the conventional electric shutter, a space formed between the upper frame of the shutter box and the lower frame of the shutter box attached to the building is used as a wiring space, and the connection of the cord is performed in the wiring space. I was
[0004]
[Problems to be solved by the invention]
However, the shutter is wrapped around the winding drum, and even in the shortest state, it hangs a little from the winding drum.Before connecting the cord, use a hand so that the hanging shutter does not get in the way. We needed to push it up. Therefore, at least two persons are required: a worker pushing up the shutter and a person connecting the cord, and the cord connection operation must be performed in a narrow wiring space between the lower surface of the winding drum and the upper frame of the sash. Therefore, there was a problem that the work efficiency was low.
[0005]
The present invention has been made in view of the above points, and an object of the present invention is to provide an electric shutter capable of easily and efficiently connecting a cord without being affected by a shutter wound around a winding drum. To provide.
Another object of the present invention is to enable a cord wired in a shutter box to be held in a tidy state.
[0006]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention provides a winding drum for winding and rewinding a shutter formed by connecting a number of horizontal slats, and a power supply provided by a cord wired from an operating device provided indoors. A shutter body provided with a motor for rotating the winding drum when driven and mounted in a shutter box, wherein the cord includes a shutter body having one end connected to the motor. Side cord, and one end is divided into a building-side cord connected to the indoor operation device, and the shutter box has a shutter main body-side cord and the other end between the top plate and the winding drum. A wiring space is provided for connecting the other end of the building-side cord, and for storing and holding the connection portion and a surplus portion around the connection portion.
With the above configuration, the other end of the building-side cord is extended outside and placed, and when attaching the shutter body to an existing shutter box, the shutter-body-side cord and the building-side cord are connected in a wiring space, and the The connection portion and a surplus portion around the connection portion can be housed and held in the wiring space.
[0007]
It is desirable that the connecting portion and the surplus portion between the shutter body side cord and the building side cord be held by a cord holder provided in the wiring space.
As a result, the connecting portion and the surplus portion of the cord are maintained without being cluttered.
[0008]
Preferably, the wiring space of the shutter box is formed by a top plate of the shutter box, and the code holder is provided on a lower surface of the top plate.
Accordingly, it is easy to form a wiring space, and it is easy to secure an installation space for the code holder.
[0009]
Further, it is preferable that the cord holder is engaged with an engaging portion formed on a lower surface of the top plate and is held so as to be slidable in the longitudinal direction of the top plate.
Accordingly, the cord holder can be slid in the longitudinal direction of the top plate according to the connection portion and the surplus portion of the cord, and the mounting position of the cord holder can be easily changed.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the accompanying drawings.
1 is a perspective view of a state in which a box cover of an electric shutter attached to an upper end portion of a window sash is removed, FIG. 2 is a vertical sectional view around a shutter box with the box cover of the electric shutter mounted, and FIG. FIG. 4 is an exploded perspective view for explaining a procedure of cord wiring according to the present invention, and FIG. 4 is a process diagram for explaining a connection and holding operation of a shutter body side cord and a building side cord.
[0011]
In FIG. 1, WF is a well-known window sash having a structure in which upper and lower frames 1 and 2 and left and right vertical frames 3 and 4 are connected to a known rectangular frame by a known method. Is attached to the outer peripheral surface of the window opening O formed in a usual manner.
[0012]
After the window sash WF is attached to the outer wall W, the shutter box B is connected to the upper side of the upper frame 1. The shutter box B is formed in a box shape that connects the top plate 5, the back plate 6, and the side plates 7, 8 provided at both left and right ends, and is open to the front and the lower surface. Then, the engaging protrusions 11 formed on the upper end of the box cover 10 are inserted into the engaging recesses 9 formed on the outdoor end of the top plate 5 so that the lower portion of the box cover 10 is on the near side. By inserting it in the oblique state and returning it to the vertical state again, the engaging projections 11 are engaged with the engaging recesses 9, and the front surface of the shutter box B is covered with the box cover 10. , And is fixed to the top plate 5 and / or the side plates 7 and 8. Thus, the shutter box B is configured so as to have a box shape in which the upper surface, the front surface, the rear surface, and the bottom surface of the shutter box except for the shutter elevating opening are closed.
[0013]
As shown in FIG. 3, supporting brackets 12, 13 for receiving and fixing a shutter main body S described later are attached to the opposing surfaces of the left and right side plates 7, 8.
[0014]
In FIGS. 1, 2, and 3, S denotes a shutter body, and a pair of metal fixing members 14 and 15 arranged on the left and right at intervals substantially equal to the intervals of the support fittings 12 and 13 of the shutter box B, and fixed. A winding drum 16 rotatably provided between the members 14 and 15, a motor 17 housed in the winding drum and fixed to one of the fixed members 14, and having a rotating shaft connected to the winding drum; A coil spring (not shown) housed in the body and having one end fixed to the other fixing member 15 and the other end connected to the winding drum, and a shutter 18 formed by freely connecting a number of lateral slats. have. Reference numeral 18a denotes a bottom bar provided at a winding end portion of the shutter 18.
[0015]
The fixing members 14 and 15 of the shutter main body S are provided with handles 19 and 20 that project in directions facing each other at a position not lower than the height of the winding drum 16 before and after the fixing members 14 and 15. The shutter body S can be easily carried. The cord Ca, one end of which is connected to the motor 17, is passed through one of the fixing members 14 and the handle 20 behind the shutter body S, and is pulled out from the tip.
[0016]
The shutter body S is lifted via the handles 19 and 20 and moves in the direction indicated by the arrow A in FIG. 3 to fit the left and right fixing members 14 and 15 between the support fittings 12 and 13 of the shutter box B. Then, the lower ends of the fixing members 14 and 15 are fitted into receiving grooves 12a and 13a formed in the lower ends of the support fittings 12 and 13, so that the shutter is provided as shown in FIGS. The main body S can be mounted in the shutter box B. When the fixing members 14 and 15 are fitted to predetermined positions in the support fittings 12 and 13, as shown in FIGS. 2 and 3, the upper surfaces of the fixing members 14 and 15 of the shutter body S and the top plate of the shutter box B. The shutter body S can be securely fixed to the shutter box B by pushing the stopper piece 21 between the lower end of the front part and the front end forming the engagement recess 9 of FIG. 5 (see FIG. 2). Has become.
[0017]
Now, in the above configuration, one end is connected to a cord Ca (hereinafter, referred to as a shutter main body side cord) connected to the motor 17 of the shutter main body S, and one end is connected to an operating device (not shown) provided indoors. In the present invention, the following configuration is added in order to facilitate connection with a cord (hereinafter, referred to as a building-side cord) Cb.
That is, the top plate 5 of the shutter box B extends indoors from the upper end of the rising portion forming the engagement recess 9, so that the space 22 is formed between the top plate 5 and the upper end of the winding drum 16. The space is formed as a wiring space for connecting the cords Ca and Cb, and for storing and holding the connecting portions of the cords Ca and Cb and the surplus portion around the connection.
In the wiring space 22, a cord holder 23 that is long in the longitudinal direction of the shutter box B can be provided. The cord holder 23 is made of an elastic material such as a resin plate or a thin steel plate, and is formed in a gutter shape having a length of about 20 to 30 cm as an example. The shutter box B is slidably held in the longitudinal direction of the shutter box B by being locked to an engaging portion 5a formed at a position separated in the direction. The top plate 5 is fixed to the side plates 7 and 8 of the shutter box B, and the vertical frames 3 and 4 of the window sash are fixed to the vertical frames when the window frames extend upward to the side surfaces of the shutter box B. A screw hole provided for screwing a screw to be used can be used. If there is no screw hole, a new engaging portion may be formed.
[0018]
In the back plate 6 of the shutter box B, at a position near the motor mounting side of the shutter body S, in the example shown in FIG. Provided before the shutter body S is mounted.
[0019]
Wiring and connection of the shutter body-side cord Ca and the building-side cord Cb when attaching the electric shutter having the above-described configuration (these may be collectively referred to as wiring work) are performed according to the following procedure. That is,
1) Attach the window sash WF to which the shutter box B is connected at a predetermined position.
2) The building-side cord Cb, to which the annular cord protection member 25 is attached, is inserted into the hole 24 from the outdoor side through the hole 24, and penetrates the hole provided in the outer wall W. One end of the building-side cord Cb is connected to an indoor operation device (not shown) at an appropriate time.
3) The cord protection material 25 attached to the building-side cord Cb remaining in the shutter box B is fitted into the hole 24 (see FIG. 2), and the connector 26 at the other end of the cord is connected to the top plate of the shutter box B. 5 is temporarily fixed to the lower surface or the like with an adhesive tape or the like. As a result, temporary wiring is achieved.
4) Next, the code holder 23 is fitted to the engaging portion 5a of the top plate 5 of the shutter box B.
5) A guide rail 27 for guiding the right and left ends of the shutter 18 by vertically fitting the right and left ends of the shutter 18 to the outdoor portions of the vertical frames 3 and 4 of the window sash is connected by a known method.
6) As shown in FIG. 4A, the shutter main body S is fitted into the shutter box B as described above, and is fixed by the lifting stopper piece 21.
7) Next, a hand is inserted into the wiring space 22 from between the top plate 5 of the shutter box B and the winding drum 16 of the shutter body S, and the other end of the shutter body side code Ca and the other end of the building side code Cb. Are connected by a connector 28. When performing this connection work, the cord holder 23 is laid down in a position where it does not interfere (see FIG. 4C). After the cords are connected, the excess portion of each cord is pulled out and aligned {see FIG. 4 (b)}. The cords are bound by a well-known binding band 29 so that the cords are not loosened. Is slid to a position suitable for accommodating the cord, and the cord holder 23 accommodates the connection portion (connector portion) of the cords Ca and Cb and a surplus portion therearound.
Thus, the connection and storage of the cord, that is, the wiring work is completed.
[0020]
After the completion of the wiring work, as shown in FIG. 1, the box cover 10 is mounted using the engaging portion 9 of the top plate 5 of the shutter box B as described above, and the top plate is attached with a tapping screw or the like. The attachment of the electric shutter is completed by being fixed to the side plate 5 and / or the side plates 7 and 8.
[0021]
In the above embodiment, since the wiring space is formed above the winding drum, even when the shutter body S is mounted on the shutter box B, wiring work in the wiring space can be performed without being interrupted by the shutter 18. Therefore, the required number of workers can be reduced, and the efficiency of wiring work can be improved.
Further, the wiring space 22 can be easily provided above the winding drum 16 with only a slight design change that merely forms the top plate 5 in a stepped shape. Therefore, it is possible to provide an electric shutter that can simplify wiring work without increasing cost.
Further, since the cord holder 23 is slidably held, it is placed in a position where it does not hinder the wiring work, and is moved to an appropriate position when the wiring work is completed, so that the connecting portion and the surplus portion of the cord are removed. It can be easily accommodated and held in a stable state without slack.
[0022]
Although the above embodiment is an example in which the present invention is applied to an electric shutter mounted on a window sash, the present invention can also be applied to an electric shutter mounted on a terrace sash. No need to say.
[0023]
【The invention's effect】
As described above, according to the present invention, wiring work can be easily and efficiently performed without being affected by the shutter wound around the winding drum.
[0024]
In addition, when a cord holder is provided in the shutter box, the connection part of the shutter body side cord and the building side cord and the surplus part can be held in a state tied to the cord holder, so when the cord is left untidy There is no problem that the electrical connection state of the cord connection portion is deteriorated due to vibration or the like caused by opening and closing of the shutter, which is likely to occur, and noise is not generated.
[0025]
When the wiring space of the shutter box is formed by the top plate of the shutter box and the code holder is provided on the lower surface of the top plate, the wiring space can be easily provided without being restricted by the upper sash frame below the shutter box. In addition, the cord holder can be easily attached.
[0026]
Furthermore, when the code holder is engaged with a screw hole formed on the lower surface of the top plate and is slidably held in the longitudinal direction of the top plate, there is no extra cost for providing the code holder. In addition, when performing the wiring work, place the cord holder out of the way, and when the wiring work is completed, it can be easily moved to a position suitable for storing and holding the connection part of the cord and the surrounding surplus part. It is effective for improving the efficiency of the construction, and can be stored and held at a position where the cord is not easily loosened.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electric shutter according to the present invention attached to an upper end of a window sash with a box cover removed.
FIG. 2 is a longitudinal sectional view around a shutter box to which the box cover is attached.
FIG. 3 is an exploded perspective view of a main part of the electric shutter according to the present invention.
FIG. 4 is a process diagram illustrating a procedure of wiring work in the electric shutter according to the present invention.
[Explanation of symbols]
B Shutter box 5 Top plate 6 Back plate 7, 8 Side plate S Shutter bodies 14, 15 Fixing member 16 Winding cylinder 17 Motor 18 Shutter 19, 20 Handle 21 Up-stop piece 22 Wiring space Ca Shutter body side code Cb Building side code 23 Cord holder 5a Engagement part

Claims (4)

A winding drum for winding and rewinding a shutter formed by connecting a number of horizontal slats, and powered by a cord wired from an operating device provided indoors and driven to drive the winding drum. In a motorized shutter that is mounted in a shutter box, a shutter body having a motor for rotating,
The cord is divided into a shutter body-side cord having one end connected to the motor, and a building-side cord having one end connected to the indoor operating device,
In the shutter box, between the top plate and the winding drum, the other end of the shutter body side cord and the other end of the building side cord are connected, and the connection part and a surplus part around the same are connected. A motorized shutter provided with a wiring space for housing and holding. 2. The electric shutter according to claim 1, wherein a connection portion between the shutter body side cord and the building side cord and a surplus portion around the connection portion are held by a cord holder provided in the wiring space. 3. The electric shutter according to claim 1, wherein a wiring space of the shutter box is formed by a top plate of the shutter box, and a code holder is provided on a lower surface of the top plate. 2. The electric motor according to claim 1, wherein the cord holder is engaged with an engaging portion formed on a lower surface of the top plate and is slidably held in a longitudinal direction of the top plate. 3. Expression shutter.

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