Electric shielding device and mounting method

Abstract

The excess portion of the power cable can be stored away, preventing a decrease in aesthetic appeal. [Solution] The system comprises a roll screen 2 having a screen, an electric drive unit for moving the screen, and a power cable 13c extending from the electric drive unit; a base frame 3 to which the roll screen 2 is attached; and a front cover positioned in front of the roll screen 2. The roll screen 2 is positioned adjacent to the front of the base frame 3. The base frame 3 has a concave shape extending in the longitudinal direction and includes a cable storage section 26 from which the power cable can be folded and stored. The front cover has a notch from which the power cable 13c stored in the cable storage section 26 is pulled out.

Description

Technical Field

[0001] The present invention relates to a motorized shielding device capable of accommodating a power supply cable and an installation method thereof.

Background Art

[0002] Patent Document 1 describes a roll screen device which is one type of shielding device with enhanced light shielding properties. In this roll screen device, a roll screen serving as a shielding mechanism unit is attached to a base frame fixed to a ceiling, a wall surface or the like. The roll screen includes a screen that is wound around a winding pipe rotatably supported by the frame. The vertical edge portion of the screen is sandwiched between guide rails fixed to a window frame or the like. Thereby, this roll screen improves the light shielding property by preventing a gap from being formed between the screen and the window frame. Such a roll screen can raise and lower the screen by pulling an operation cord hanging down from one end in the longitudinal direction of the frame. In addition, the roll screen is provided with a free stop mechanism including a spring motor. The screen is raised and lowered by pulling a pull cord hanging down from a weight bar provided at the lower end of the screen. In any of the operation methods, the raising and lowering operation of the screen of the roll screen is performed manually.

[0003] On the other hand, there are also roll screens that are electrically raised and lowered in roll screen devices. The motorized roll screen is configured such that a frame portion is provided with an electric drive unit, and a winding shaft is rotated by a motor or the like serving as a drive source to raise and lower the screen. In addition, a power supply cable extends from the electric drive unit. A plug of the power supply cable is connected to, for example, an outlet provided on a wall surface, and power is supplied to the motor and the like.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] Incidentally, in an electric roller screen device, a power cable extends from the electric drive unit located inside the frame to an external power outlet. The power cable is made long enough to accommodate installation in various locations. Therefore, in order to avoid detracting from the appearance of the electric roller screen, the excess portion of the power cable needs to be stored inside. If the excess portion of the power cable is visible from the frame 11, it may detract from the aesthetic design. [Means for solving the problem]

[0006] An electric shielding device for solving the above problems comprises a shielding mechanism having a shielding material, an electric drive unit for moving the shielding material, and a power cable extending from the electric drive unit, and a base frame to which the shielding mechanism is attached, wherein the shielding mechanism is positioned adjacent to the front of the base frame, and the base frame has a concave shape extending in the longitudinal direction and includes a cable storage section capable of storing the power cable folded back.

[0007] In the above-described electric shielding device, a front cover may be further provided in front of the shielding mechanism, and the front cover may be configured to have a notch through which the power cable stored in the cable storage section is pulled out.

[0008] In the above-described electric shielding device, the notch may be configured to be provided with a gap-filling material that narrows the gap with the power cable. A mounting method for an electric shielding device to solve the above problems is a mounting method for mounting a shielding mechanism, which has a shielding material, an electric drive unit for moving the shielding material, and a power cable extending from the electric drive unit, to a base frame, wherein the base frame is provided with a mounting bracket for mounting the shielding mechanism and a cable storage section having a concave shape extending in the longitudinal direction, and the mounting method comprises the steps of suspending the shielding mechanism with a suspension cord locked to the mounting bracket, folding the power cable back and storing it in the cable storage section, and attaching the shielding mechanism to the mounting bracket.

[0009] The above mounting method may be configured to include the steps of: attaching the front cover to the base frame so that it is positioned in front of the shielding mechanism attached to the base frame; and pulling out the power cable extending from the cable storage section through a notch provided in the front cover. [Effects of the Invention]

[0010] According to the present invention, the deterioration of the design can be suppressed by storing the excess portion of the power cable. [Brief explanation of the drawing]

[0011] [Figure 1] This is a front view of an electric roller screen in one embodiment. [Figure 2] This is a plan view of an electric roller screen in one embodiment. [Figure 3] This is a side view of an electric roller screen in one embodiment. [Figure 4] This is a perspective view of the base frame in one embodiment. [Figure 5] This is a perspective view of the main part of the front cover in one embodiment. [Figure 6] This is a perspective view showing the power cable extending from the roller screen being housed in the base frame in one embodiment. [Figure 7]This is a perspective view showing the power cable being clamped to the end of the base frame in one embodiment. [Figure 8] This is a perspective view showing the working state in which the power cable extending from the roll screen is housed in the base frame in one embodiment. [Modes for carrying out the invention]

[0012] The following description will explain an electric roller screen device as an electric shielding device according to an embodiment, with reference to the drawings. <Overall Structure> As shown in Figure 1, the electric roller screen device 1 comprises a roller screen 2 as a shielding mechanism, a base frame 3, and a front cover 4.

[0013] <Roller blinds> As shown in Figures 1, 2, and 3, the roller screen 2 comprises a frame 11, a screen 12 as a shielding material, and an electric drive unit 13.

[0014] The frame section 11 rotatably supports both ends of the winding pipe 14 that winds up the screen 12. The winding pipe 14 supports the upper end of the strip-shaped screen 12 along the axial direction of the winding pipe 14. The screen 12 is coated with a soft resin material such as polyvinyl chloride to improve the overall durability of the strip-shaped fabric that makes up the screen 12. The lower end of the screen 12 hangs down by its own weight, away from the outer surface of the winding pipe 14, in the vertical direction downward, which is an example of the upward and downward direction. The lower end of the screen 12 is equipped with a weight bar 15 that extends along the left-right direction. The weight bar 15 stabilizes the position of the screen 12 along the upward and downward direction. Both ends of the weight bar 15 are engaged with guide rails 16 to guide its upward and downward movement.

[0015] The winding pipe 14 is rotated by the electric drive unit 13 that rotates the winding pipe 14. The electric drive unit 13 includes an electric motor 13a serving as a drive source, a control board 13b, and the like. The control board 13b incorporates a drive circuit for the electric motor 13a, a control circuit for controlling the winding operation of the screen 12, a power supply circuit, and the like. Further, a plurality of electronic components for constituting various electric circuits are mounted on the control board 13b.

[0016] A power cable 13c extends from the control board 13b. The power cable 13c extends from the upper surface of the vertical frame 21. Further, the power cable 13c may be drawn out from any end portion in the longitudinal direction, or may be drawn out from an intermediate position between both end portions. The base end of the power cable 13c is electrically connected to the control board 13b, and a plug 13d is provided at the tip end. The power cable 13c is made relatively long so as to be compatible with the distances between the installation locations of various electric roll screen apparatuses 1 and electrical outlets. As will be described later, the length of the portion of the power cable 13c drawn out from the roll screen 2 can be adjusted by folding the power cable 13c and storing the excess portion.

[0017] A pair of left and right guide rails 16 extending along the elevating direction are erected below both end portions of the winding pipe 14 in the left-right direction. Each of the pair of left and right guide rails 16 is fixed to, for example, a vertical frame of a window frame or the like. Each of the pair of left and right guide rails 16 is constituted by a pair of guide walls that sandwich the vertical edge portion of the screen 12 from the front and rear sides. In this manner, since the vertical edge portion of the screen 12 is sandwiched by the guide rails 16, it is possible to prevent a gap from being formed between the vertical frame of the window frame and the vertical edge portion of the screen 12 and causing light leakage.

[0018] <Base Frame> As shown in Figure 3 and Figure 4, the base frame 3 to which the roll screen 2 is attached has an L-shape as a whole. The base frame 3 includes a vertical frame 21 and an upper frame 22.

[0019] The vertical frame 21 is a plate material positioned along the vertical wall surface. The vertical frame 21 is equipped with a base 21a. The vertical frame 21 is equipped with a cable storage section 26 that extends longitudinally along the corner with the upper frame 22. The cable storage section 26 is a groove with a concave shape. The cable storage section 26 is equipped with a pair of rising walls 26a that rise up from the base 21a, and an upper wall 26b that bends inward from the upper ends of the pair of rising walls 26a. A slit 26c is formed between the tips of the pair of upper walls 26b. The width of the slit 26c is such that a power cable 13c can be pushed in with a finger or the like.

[0020] The cable storage section 26 is a space enclosed by the base 21a, a pair of rising walls 26a, and a pair of upper walls 26b, which serves as the storage space 26d for the power cable 13c. The storage space 26d is wide enough to allow the power cable 13c to be folded back, and is wide enough to accommodate the power cable 13c in a folded state. The pair of upper walls 26b are retaining walls that prevent the power cable 13c from falling out of the storage space 26d. One end of the cable storage section 26 is through which the power cable 13c, folded back in the storage space 26d, is pulled out. At the position where the power cable 13c is pulled out of the storage space 26d, it is clamped by a clamper 26e. The clamper 26e is, for example, a resin cord, resin tape, etc., with one end fixed to the base 21a.

[0021] The vertical frame 21 is provided with a mounting groove 27 located closer to its lower end than the corner portion with the upper frame 22 on the base 21a. The lower end of the vertical frame 21 forms an opening 20 through which the screen 12 hangs down from the winding pipe 14. This opening 20 is also the part through which light from the outside enters the inside of the frame. A gap-filling material 28 is placed in the mounting groove 27. The gap-filling material 28 is, for example, mohair. The gap-filling material 28 is constructed by embedding mohair into a base material. The tip of the mohair contacts the surface of the screen 12 passing through the opening 20. This prevents external light from entering the inside of the frame portion 11 through the gap between the vertical frame 21 and the screen 12. The opening 20 is located between the surface of the base 21a and the tip of the front cover 4.

[0022] The upper frame 22 is a panel positioned along the ceiling wall. The upper frame 22 is equipped with a base 22a. The upper frame 22 is equipped with a fixing groove 23 that extends in the longitudinal direction. The fixing groove 23 is a locking groove to which the mounting bracket 24 is attached. The roller screen 2 is fixed to the fixing groove 23 via the mounting bracket 24. The mounting bracket 24 is locked into the fixing groove 23. Subsequently, the frame portion 11 of the roller screen 2 is locked into the mounting bracket 24. When the roller screen 2 is installed, the suspension cord 37 for suspending the roller screen 2 is locked into the mounting bracket 24.

[0023] In the base frame 3 configured as described above, the roll screen 2 is placed in the installation space formed by the vertical frame 21 and the upper frame 22. When viewed from the front, the vertical frame 21 is hidden by the roll screen 2 as it is placed adjacent to it. The front cover 4 is then placed in front of the roll screen 2.

[0024] <Front cover> As shown in Figure 3, the front cover 4 comprises a front plate portion 31, an upper curved portion 32, a lower curved portion 33, and a lower plate portion 34. The front plate portion 31 is a flat plate portion that covers the front of the roll screen 2. The upper curved portion 32 is located on the upper part of the front plate portion 31. The end of the upper curved portion 32 is a mounting piece for the front end of the upper frame 22. The mounting piece 32a is an inclined piece that slopes downward. The mounting piece 32a is locked into a mounting groove 22c provided at the front end of the upper frame 22, which has an open end that faces diagonally upward.

[0025] The lower curved portion 33 is located on the lower side of the front plate portion 31. The lower plate portion 34 is located on the lower side of the front plate portion 31 via the lower curved portion 33. The lower plate portion 34 covers the lower side of the roll screen 2. The tip of the lower plate portion 34 forms an opening 20 and faces the base 21a. The tip of the lower plate portion 34 may be positioned so that the screen 12, which is pressed against the gap-filling material 28, comes into contact with it, so as not to create a gap.

[0026] As shown in Figure 5, a notch 35 is provided in the portion spanning the upper curved portion 32 and the upper region of the front plate portion 31. The notch 35 is provided on the first end portion 2a side. The first end portion 2a side is the side from which the power cable 13c is pulled out from the cable storage portion 26. The notch 35 has a concave shape with an opening on the upper side. A gap-filling material 36 is provided at the open end of the notch 35. The gap-filling material 36 is mohair as an example. The gap-filling material 36 is constructed by embedding mohair into a base material. The tip of the mohair contacts the power cable 13c passing through the notch 35. This prevents light leakage from the inside to the outside of the frame portion 11.

[0027] <Installation Method> As shown in Figure 6, first, the base frame 3 is fixed to a predetermined position on the wall. The predetermined position is, for example, a curtain box. The vertical frame 21 is fixed to the vertical wall surface with fixing members such as screws, adhesive, or double-sided tape. The upper frame 22 is fixed to the ceiling surface with fixing members. Then, the mounting bracket 24 is fixed to the fixing groove 23 of the upper frame 22. There are at least two mounting brackets 24 so as to support both ends of the roller screen 2.

[0028] A suspension cord 37 is secured to at least two mounting brackets 24 that support both ends of the roller screen 2. The suspension cord 37 is secured to the mounting brackets 24 in such a way that it forms an annular shape through which the roller screen 2 can be inserted. The roller screen 2 is then inserted through the annular shape of the suspension cord 37. The roller screen 2 is suspended and supported by the suspension cord 37 until it is fixed to the mounting brackets 24. The suspension cord 37 is a cord made of fabric, resin, etc., with sufficient strength to support at least the roller screen 2. A flat cord is preferred over a round cord for the suspension cord 37 in order to increase the contact area with the roller screen 2. The length of the suspension cord 37 is such that the suspended roller screen 2 is positioned below the cable storage section 26.

[0029] In this state, the power cable 13c is led out from the upper surface of the frame portion 11 of the roll screen 2. Next, the power cable 13c is stored in the cable storage portion 26. In Figure 6, the end from which the power cable 13c is pulled out is designated as the first end portion 2a, and the end opposite to the first end portion 2a is designated as the second end portion 2b.

[0030] As shown in Figure 7, first, the power cable 13c is fixed by the clamp 26e near the first end 2a of the storage space 26d. This allows the cable exit position of the power cable 13c to be determined. At this time, the power cable 13c, which is inserted into the clamp 26e, is movable relative to the clamp 26e.

[0031] Next, as shown in Figure 8, the power cable 13c, which is led out from the top surface of the frame portion 11, extends toward the second end portion 2b, is folded back at an appropriate point and extends toward the first end portion 2a, and is then inserted into the storage space 26d through the slit 26c. Specifically, the power cable 13c is pushed in with the worker's fingers or the like. Then, the end on the plug 13d side is pulled out from the front side through the end of the slit 26c on the first end portion 2a side. At this point, the length of the power cable 13c is adjusted by pushing it in and out of the storage space 26d to match the distance to the outlet.

[0032] Thus, while the power cable 13c is being stored in the cable storage section 26, the roll screen 2 is suspended by the suspension cord 37, making it easy to store the power cable 13c in the cable storage section 26.

[0033] Next, the roller screen 2 is fixed to the mounting bracket 24. The roller screen 2 is positioned in front of the base frame 3. At this time, the tip of the power cable 13c, including the plug 13d, is also pulled out to the front side from between the frame portion 11 and the end of the roller screen 2 at the first end portion 2a.

[0034] Next, the front cover 4 is attached to the tip of the upper frame 22 on the base frame 3. At this time, the tip of the power cable 13c, including the plug 13d, is pulled out from the notch 35. The plug 13d is then connected to the outlet. This completes the installation of the electric roller screen device 1.

[0035] The electric roller screen device 1, configured as described above, operates as follows. For example, when the screen 12 is lowered using the operating device, the screen 12 lowers to the lowest position where the weight bar 15 is located. At this time, the weight bar 15 and the screen 12 are guided by the guide rail 16 as they descend to the lowest position. The vertical edges of the screen 12 are sandwiched between the guide rail 16, so light leakage into the room can be suppressed. In addition, the opening 20 through which the screen 12 hangs is filled with gap-filling material 28. Specifically, the gap-filling material 28 is in contact with the screen 12 from the side of the vertical frame 21. Therefore, it is possible to suppress light entering from the window from entering the frame portion 11 through the gap between the vertical frame 21 and the screen 12.

[0036] Even if light entering the frame portion 11 were to wrap around the frame portion 11 and reach the notch 35 which serves as the exit point for the power cable 13c to the outside, the gap-filling material 36 prevents light from leaking from the frame portion 11 into the room. This helps to suppress a decrease in the light-shielding ability of the room.

[0037] [Effects of the Embodiment] As described above, the following effects can be obtained according to the embodiments described. (1) The power cable 13c is made longer than necessary, anticipating that it will be installed in various locations. When the plug 13d is connected to the outlet, any excess portion of the power cable 13c can be folded back and stored in the cable storage section 26. Therefore, the portion of the power cable 13c that is visible from the outside of the electric roller screen device 1 can be reduced, thus preventing a decrease in the aesthetic appearance of the electric roller screen device 1.

[0038] (2) The portion of the power cable 13c that is visible from the outside of the electric roller screen device 1 can be limited to the portion that leads out from the notch 35 provided on the first end 2a side of the electric roller screen device 1. Therefore, the power cable 13c can be made inconspicuous from the outside as it is only pulled out from the end of the electric roller screen device 1.

[0039] (3) The power cable 13c drawn out from the cable storage section 26 is secured at the end of the cable storage section 26 by a clamper 26e. This allows the power cable 13c to be easily guided to the notch 35.

[0040] (4) A gap-filling material 36 is provided in the notch 35. The electric roller screen device 1 can prevent light that has entered the frame portion 11 from leaking into the room through the notch 35.

[0041] (5) The opening 20 through which the screen 12 hangs is filled with gap-filling material 28. Therefore, it is possible to prevent light from entering the frame 11 from the window.

[0042] (6) During the process of storing the power cable 13c in the cable storage section 26, the roll screen 2 is suspended by the suspension cord 37, making it easy to store the power cable 13c in the cable storage section 26. For example, the installation work of attaching the roll screen 2 to the mounting bracket 24 can be performed by one worker.

[0043] [Modification of the embodiment] This embodiment can be implemented with the following modifications. This embodiment and the following modifications can be combined with each other to the extent that they do not contradict each other technically.

[0044] In the example above, the roll screen 2 was suspended by the suspension cord 37 while the power cable 13c was being stored in the cable storage section 26. However, the suspension of the roll screen 2 with the suspension cord 37 may be omitted. In this case, multiple workers would lift the roll screen 2 while storing the power cable 13c in the cable storage section 26.

[0045] The gap-filling material 36 provided in the notch 35 may be made of something other than mohair. For example, the gap between the power cable 13c and the open end of the notch 35 may be filled with a plate. Alternatively, the provision of the gap-filling material 36 may be omitted.

[0046] If the distance from the installation location of the electric roller screen device 1 to the power outlet is far, the amount of power cable 13c pulled out from the notch 35 will be large, so the power cable 13c may not be folded back in the cable storage section 26. Also, if the distance from the installation location of the electric roller screen device 1 to the power outlet is short, the power cable 13c may be folded back multiple times in the cable storage section 26. That is, the power cable 13c may be folded back multiple times at two locations: on the first end 2a side and on the second end 2b side of the frame section 11. In addition, the power cable 13c that has been folded back in the cable storage section 26 may be bundled with cable ties or the like.

[0047] The clamp 26e may be omitted. Instead, the cable storage section 26 may have a guide ring for passing the power cable 13c through it, located near the end of the cable storage section 26 and on the rising wall 26a or the upper wall 26b.

[0048] The shading device is not limited to roller screen 2. Other shading devices may include electric horizontal blinds, electric vertical blinds, electric retractable curtains, electric pleated screens, etc. [Explanation of Symbols]

[0049] 1…Electric roller screen device 2… Roller blinds 3…Base frame 4…Front cover 11...Frame part 12…Screen 13…Electric drive unit 13a... Electric motor 13b...Control board 13c... Power cable 13d...plug 14... Retractable pipe 15…Weight bar 16… Guide rail 20…Aperture 21…Vertical frame 22…Upper frame 24…Mounting bracket 26…Cable storage compartment 26a…Rising wall 26b…Top wall 26c... Slit 26d...Storage space 26e... Clamper 27…Mounting groove 28... Gap filling material 35... Notch 36... Gap filling material 37... Hanging cord

Claims

1. A shielding mechanism comprising a shielding material, an electrically driven unit for moving the shielding material, and a power cable extending from the electrically driven unit, The system comprises a base frame to which the shielding mechanism is attached, The shielding mechanism is positioned adjacent to the front of the base frame, The base frame has a concave shape extending in the longitudinal direction and includes a cable storage section in which the power cable can be folded and stored. Electric shielding device.

2. The shielding mechanism is further provided with a front cover positioned in front of it. The front cover is provided with a notch through which the power cable stored in the cable storage section is pulled out. The electrically operated shielding device according to claim 1.

3. The notch is provided with a gap-filling material to narrow the gap between it and the power cable. The electrically operated shielding device according to claim 2.

4. A mounting method for attaching a shielding mechanism, which includes a shielding material, an electrically driven unit for moving the shielding material, and a power cable extending from the electrically driven unit, to a base frame, The base frame is provided with a mounting bracket for attaching the shielding mechanism and a cable storage section having a concave shape extending in the longitudinal direction. The process involves suspending the shielding mechanism by a suspension cord that is secured to the mounting bracket, The process of folding the power cable back and storing it in the cable storage compartment, The process of attaching the shielding mechanism to the mounting bracket, An installation method that includes the following features.

5. The steps include: attaching the front cover to the base frame so that it is positioned in front of the shielding mechanism attached to the base frame; The process includes the step of pulling out the power cable extending from the cable storage section through a notch provided in the front cover. The mounting method described in claim 4.

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