JP7446171B2 - electric shielding device - Google Patents

Description

The present invention relates to a motorized shielding device.

Conventionally, an electric shielding device is known in which a winding pipe is rotated by rotation of a motor, and the winding pipe winds or unwinds the screen to raise and lower the screen (for example, see Patent Document 1).

In such a conventional electric shielding device, a motor unit is disposed within the winding pipe, and the motor within the motor unit is connected to a control section within a frame that supports the winding pipe. The electric shielding device can control the drive of the motor in the motor unit via the control section by operating an operating device such as a remote controller. Here, the shielding device includes a frame fixed to the bracket, and the frame is provided with various parts depending on the specifications of the shielding device.

Japanese Patent Application Publication No. 2010-84319

Since dust may enter the frame, there is a possibility that various parts provided in the frame may be exposed to the dust.

An object of the present invention is to provide an electric shielding device that can suppress exposure of various parts provided in a frame to dust.

The electric shielding device of the present invention includes a frame and a power branch unit provided in the frame, the power branch unit includes a connector part, a cord, and a case, and the connector part includes: There is provided an electric shielding device connected to the cord, the cord configured to electrically connect between different electric shielding devices, and the case configured to cover at least an upper part of the connector part. be done.

According to the present invention, since the case is provided to cover at least the upper part of the connector part, exposure of the connector part to dust is suppressed.

Various embodiments of the present invention will be illustrated below. The embodiments shown below can be combined with each other.
Preferably, the electric shielding device further includes a power supply board, and the cord is configured to electrically connect a power cable for supplying commercial power, the power supply board, and the different electric shielding device. A shielding device is provided.
Preferably, the connector section has first to third connector sections connected to the cord, the first connector section is connected to the power cable, and the second connector section is connected to the power supply board. A motorized shielding device is provided, wherein the third connector portion is connected to the different motorized shielding device.
Preferably, the frame further includes a board case for accommodating the power supply board, and the frame has a bottom part and a side wall part, and the case and the board case of the power supply branch unit are installed in the bottom part. , the electric shielding device is provided, wherein the side wall portion is provided to stand up from the bottom surface portion, and the power cable passes between the side wall portion and the board case.
Preferably, the case is provided with an electric shielding device provided so as to cover an upper part of the connector part.
Preferably, the case further includes a base part, and the cap part includes a mounting cap part attached to the base part and an extension cap part provided so as to protrude with respect to the base part. A motorized shielding device is provided, having the following.
Preferably, the electric shielding device is provided, wherein the length of the extension cap portion in the longitudinal direction of the frame is longer than the length of the connector portion in the longitudinal direction of the frame.
Preferably, an opening is formed in an upper part of the frame, and the case is configured to be inserted into the frame and engaged with the frame through the opening of the frame, and the electric shielding device is configured to engage with the frame. provided.
Preferably, the electric shielding device is provided, wherein the width of the case in the lateral direction of the frame is wider than the width of the opening of the frame in the lateral direction.
Preferably, the frame has a first engaging part, the first engaging part extends in the longitudinal direction of the frame, and the case has a base part, and the case has a base part, and the case has a base part. is provided with the connector part, and a second engaging part is formed on the bottom surface of the base part, and the second engaging part is configured to engage with the first engaging part, Further, there is provided an electric shielding device that is configured to be slidable in the longitudinal direction of the frame while engaged with the first engaging portion.

Preferably, the electric shielding device includes a winding pipe for winding up or unwinding the screen, a motor for rotating the winding pipe, and a frame for supporting the winding pipe, and the winding pipe is housed in the frame. Further, the motor controller is characterized in that a convex portion provided on the bottom of the motor controller and a frame hole fit together.
Preferably, in the electric shielding device of the present invention, the motor is housed in a winding pipe, and the control board is arranged on a side close to the control board.
Preferably, in the electric shielding device of the present invention, a mating convex portion is provided on a contact surface of the control board and the power supply board with the frame, and the mating convex portion is provided with a mating convex portion in a portion where a hole is formed in the frame. It is characterized by being fixed together.

FIG. 1A is a schematic diagram showing a state in which a plurality of electric roll screens 100 according to an embodiment are arranged. FIG. 1B is a top view of region B shown in FIG. 1A. FIG. 2 is a schematic diagram showing the electrical connection state of the plurality of electric roll screens 100 shown in FIG. 1A. FIG. 3A is a front view of the electric roll screen 100 according to the embodiment. FIG. 3B is an enlarged view of region B shown in FIG. 3A. FIG. 4 is a right side view of the electric roll screen 100 shown in FIG. 2A. FIG. 5 is an exploded perspective view of the frame 1, the power control unit 9, the motor control unit 10, and the power branch unit 11. 6A is an enlarged view of the power supply control unit 9 shown in FIG. 5. FIG. FIG. 6B is an enlarged view of the motor control unit 10 shown in FIG. 5. FIG. 7A is a top perspective view of the frame 1. FIG. 7B is a bottom perspective view of the frame 1. FIG. 8A is a perspective view showing a state in which the power supply control unit 9 is attached to the frame 1. FIG. 8B is a sectional view of the frame 1 and power supply control unit 9 shown in FIG. 8. In FIG. 8B, the frame 1 is cut at the position of arrow A in FIG. 8A, the power supply control unit 9 is cut at the position of arrow B shown in FIG. 8A, and viewed from the direction of arrow C. FIG. 9A is an exploded perspective view of the electric roll screen 100. FIG. 9B is an enlarged view of region B shown in FIG. 9A. FIG. 10 is an exploded perspective view of the motor unit 8. FIG. 11A is an exploded perspective view of the power branch unit 11. FIG. 11B is an enlarged view of region B in FIG. 11A. FIG. 11C is a schematic diagram showing the configuration of the cord of the power branch wiring section 11a of the power branch unit 11. FIG. 12A shows a state before the power supply control unit 9 is attached to the frame 1. FIG. 12B shows a state in which the end side of the power supply control unit 9 is inserted into the frame 1 while the power supply control unit 9 is tilted. FIG. 12C shows a state in which the power supply control unit 9 is attached to the frame 1. FIG. 13A shows a state before the power branch unit 11 is attached to the frame 1. FIG. 13B shows a state in which the power branch unit 11 is attached to the frame 1. 14A and 14B show a cross section of the frame 1 at a position where the power supply control unit 9 is provided. FIG. 14A shows a state in which the hooking portion 1b1 of the frame 1 is hooked onto the hooked portion 2a of the bracket 2. FIG. 14B shows a state in which the frame 1 is attached to the bracket 2 by hooking the hook portion 1c1 of the frame 1 onto the hook portion 2c of the bracket 2. 15A and 15B show a cross section of the frame 1 at a position where the power supply branch unit 11 is provided. FIG. 15A shows a state in which the hooking portion 1b1 of the frame 1 is hooked onto the hooked portion 2a of the bracket 2. FIG. 15B shows a state in which the frame 1 is attached to the bracket 2 by hooking the hook portion 1c1 of the frame 1 onto the hook portion 2c of the bracket 2. FIG. 16 is a perspective view showing a fourth modification of the cap portion 11b2.

EMBODIMENT OF THE INVENTION Hereinafter, with reference to drawings, the electric roll screen of one Embodiment by this invention is demonstrated.

1 Overall configuration 1-1 Arrangement of multiple electric roll screens 100 The embodiment is configured such that a plurality of electric roll screens 100 can be operated with a single outlet. In other words, the electric roll screen 100 connected to an outlet can be connected to another electric roll screen 100 by a crossover wiring, and the other electric roll screen 100 does not need to be directly connected to an outlet. Therefore, the electric roll screen 100 according to the embodiment is required when a plurality of electric roll screens 100 are arranged, for example, when the window size at the installation location is large or when multiple windows are placed side by side (continuous window). Only one outlet is needed, and deterioration in design due to routing of wiring can be suppressed. The board of each electric roll screen 100 (control board 10a of the motor control unit 10 described later) is connected to a central control section (not shown), and the central control section can centrally control each electric roll screen 100. ing.

As shown in FIGS. 1A, 1B, and 2, the embodiment has a configuration in which three electric roll screens 100 are connected by a power branch unit 11. The electric roll screen 100 on the right side connects the power cable c1 to a power branch wiring section 11a, which will be described later. Note that the power supply branch wiring section 11a has a function of distributing commercial power.
The power branch wiring section 11a of the electric roll screen 100 on the right side and the power branch wiring section 11a of the electric roll screen 100 in the center are connected via a power crossover cable c2. Thereby, power is supplied from the outlet to the central electric roll screen 100 via the power cable c1 and the power crossover cable c2.
The power supply branch wiring section 11a of the central electric roll screen 100 and the power supply board 9a of the left electric roll screen 100 are connected via a power crossover cable c2. Note that the electric roll screen 100 on the left side does not have the power supply branch wiring section 11a, and the power supply crossover cable c3 is connected to the power supply board 9a. Electric power is supplied from the outlet to the electric roll screen 100 on the left side via the power cable c1, the power crossover cable c2, and the power crossover cable c3.

In addition, various wiring such as power cable c1, power crossover cable c2, power crossover cable c3, wiring c4, etc. has the effect of preventing cord troubles such as entanglement and making it easier to distinguish the cords, so the wiring shapes are It is preferable to adopt it.

1-2 Electric roll screen 100
As shown in FIGS. 1B, 3A, and 5, the electric roll screen 100 (an example of an electric shielding device) includes a frame 1, a bracket 2, a side bracket 3, a screen 4, a weight bar 5, and a shield 6. , a winding pipe 7 , a motor unit 8 , a power supply control unit 9 , a motor control unit 10 , and a power supply branching unit 11 . Note that in the following description, the left and right directions are based on a state in which the electric roll screen 100 is viewed from the front (the state shown in FIG. 3A).

As shown in FIGS. 1B and 5, the frame 1 is a long member (an example of a profiled material), and the vicinity of both ends of the frame 1 are supported by brackets 2, respectively. Note that the bracket 2 is fixed to a mounting surface (for example, a window frame, a wall surface, etc.) of a building or the like. Side brackets 3 are attached to both ends of the frame 1, respectively. A shield 6 is attached to the front surface (front surface) of the frame 1. Therefore, it is possible to suppress outdoor light from entering the room through the gap between the frame 1 and the winding pipe 7.

As shown in FIGS. 3A and 3B, the winding pipe 7 is rotatably provided between the right side bracket 3 and the left side bracket 3. The right end of the winding pipe 7 is rotatably supported by the motor control unit 10, and the left end of the winding pipe 7 is supported by a shaft support (not shown) fixed to the left side bracket 3. Rotatably supported. The end of the screen 4 is attached to the take-up pipe 7, and the screen 4 is suspended from the take-up pipe 7. Further, a weight bar 5 is attached to the lower end of the screen 4. The take-up pipe 7 is configured to be able to take up and unwind the screen 4, and the screen 4 is taken up or unwound on the take-up pipe 7 depending on the rotation direction of the take-up pipe 7.

A spring motor (not shown) is disposed within the left end (one end) of the winding pipe 7. The left end (one end) of this spring motor is non-rotatably fixed to the side bracket 3, and the right end (other end) is provided on the winding pipe. Then, when the winding pipe 7 is rotated in the direction in which the screen 4 is unwinded, the spring motor is energized. In the electric roll screen 100, the motor unit 8 not only rotates the winding pipe 7, but also the urging force of the spring motor acts as an auxiliary force when the winding pipe 7 winds up the screen 4.

As shown in FIGS. 3A and 3B, a motor unit 8 that rotationally drives the take-up pipe 7 is disposed within the right end (the other end) of the take-up pipe 7. The motor unit 8 includes a substrate 8f, which will be described later, a rotary encoder 8g, and a light receiving section 8h. The rotary encoder 8g is configured to detect the amount of rotation of the winding pipe 7, and the rotary encoder 8g includes a light emitting element 8g1 that rotates together with the winding pipe 7, and a light receiving element 8g2 fixed within the motor unit 8. has. The substrate 8f has, for example, a circuit that amplifies the output signal from the light receiving element of the rotary encoder 8g. The board 8f is connected to the motor control unit 10 via wiring, and the amplified signal is output to the motor control unit 10 (see FIG. 5). Furthermore, when the user operates an operating device (not shown) such as a remote controller, the light receiving section 8h receives a signal output from the remote controller. The substrate 8f amplifies the signal received by the light receiving section 8h, and the amplified signal is output to the motor control unit 10.

The power supply control unit 9 shown in FIG. 5 has a function of lowering the voltage of AC voltage and converting AC to DC. The motor control unit 10 has a function of controlling the motor unit 8 based on the output of the rotary encoder 8g and the output of the light receiving section 8h. The power supply branch unit 11 has a function of distributing AC voltage to other electric roll screens 100. A power supply control unit 9, a motor control unit 10, and a power supply branching unit 11 are housed within the frame 1.

Although the embodiment is described using the electric roll screen 100 as an example, the present invention is not limited to this, and may be applied to, for example, an electric Roman shade that moves the shielding material upward by folding the shielding material. It is also possible.

2 Detailed configuration explanation of electric roll screen 100 2-1 Frame 1
As shown in FIGS. 7A and 7B, the frame 1 includes a bottom portion 1a, a side wall portion 1b, and a side wall portion 1c. The side wall portion 1b and the side wall portion 1c are examples of the first and second side wall portions. The frame 1 is a long member extending parallel to the winding pipe 7. Furthermore, the frame 1 can be made of, for example, a metal material. As shown in FIG. 5, the frame 1 is formed in a concave shape so as to accommodate the power supply control unit 9, motor control unit 10, and power supply branching unit 11. Specifically, the upper part of the frame 1 is open, and the power supply control unit 9, motor control unit 10, and power supply branching unit 11 are inserted into the frame 1 from the open part of the frame 1, and mated to.

As shown in FIG. 8, a space Sp is formed within the frame 1. As shown in FIG. The space Sp is formed between the back surface of the power supply control unit 9 and the inner surface of the frame 1 when the power supply control unit 9 is installed in the frame 1 . Similarly for the motor control unit 10, the space Sp is formed between the back surface of the motor control unit 10 and the inner surface of the frame 1. The power cable c1, the power crossover cable c2, and the power crossover cable c3 described above pass through this space Sp and extend to the power branch wiring section 11a or the power control unit 9.

2-1-1 Bottom part 1a
The bottom surface portion 1a is curved in an arched manner. Specifically, the bottom surface portion 1a is a portion that supports the power supply control unit 9, the motor control unit 10, and the power supply branch unit 11, and is curved in an arc shape so as to protrude upward. As shown in FIGS. 7A and 7B, the bottom surface portion 1a includes a hole portion 1a1 and a protrusion portion 1a2 as an example of a first engaging portion. The hole 1a1 is formed to extend in the longitudinal direction of the frame 1. In the embodiment, the bottom portion 1a is curved in an arc shape so as to protrude upward, and the hole portion 1a1 is formed in the thus curved portion. Here, since the bottom surface portion 1a is curved, it not only becomes easier to avoid interference with the screen 4 wound up on the winding pipe 7, but also the design is improved.

As shown in FIGS. 12A to 12C, fitting portions 9b13 of a power supply control unit 9 and a motor control unit 10, which will be described later, are inserted into the hole 1a1. Thereby, the hole portion 1a1 is connected to the fitting portion 9b13. Here, since the frame 1 has the hole 1a1, the installation position of the power supply control unit 9 and the like becomes clear, and the ease of assembling the electric roll screen 100 is improved. Moreover, since the fitting part 9b13 is fitted into the hole part 1a1 from above, the power supply control unit 9 and the motor control unit 10 will fall downward, and the frame 1, the power supply control unit 9 and the motor control unit 10 will drop down accordingly. The width of the unit in the vertical direction is suppressed. For example, a connecting member is provided on the bottom surface portion 1a, and when this connecting member is connected to the power supply control unit 9 or the motor control unit 10, the power supply control unit 9 or the motor The control unit 10 will protrude upward, and the width of the above-mentioned unit in the vertical direction will increase.

As shown in FIGS. 13A and 13B, the protrusion 1a2 is configured to engage with a power branch unit 11, which will be described later. The protruding portion 1a2 is formed to protrude upward from the bottom surface portion 1a. A concave gap is formed in the protrusion 1a2, and the protrusion 1a2 can be engaged with a convex engagement portion 11b13 of the power branch unit 11. The protrusion 1a2 is formed to extend in the longitudinal direction of the frame 1. That is, the protrusion 1a2 is formed in a rail shape in the longitudinal direction of the frame 1. In the state in which the power branching unit 11 is engaged with the protrusion 1a2, the power branching unit 11 can slide on the protrusion 1a2 in parallel to the longitudinal direction of the frame 1. Thereby, the operator can easily change the installation position of the power supply branch unit 11. That is, since the operator may change the installation position of the power supply branch unit 11 depending on, for example, the length of the wiring, the burden of changing the installation position can be reduced.

The protruding portion 1a2 is formed to rise from the bottom surface portion 1a. Here, in the embodiment, in the manufacturing process of the frame 1, the hole 1a1 is formed by punching out the portion of the frame 1 where the protrusion 1a2 is to be formed. In other words, the protrusion 1a2 was formed over the entire length of the frame at the time of manufacture, but as a result of drilling (punching) the frame at the time of manufacture, part of the protrusion 1a2 was punched out. , a hole 1a1 is formed in the frame 1. Therefore, the hole 1a1 and the protrusion 1a2 are arranged so as to be aligned with each other in the longitudinal direction of the frame 1. Specifically, the holes 1a1 and the protrusions 1a2 are provided alternately in the longitudinal direction of the frame 1. In other words, the protrusions 1a2 are arranged to stand up at both ends of the hole 1a1 in the longitudinal direction. Therefore, as shown in FIG. 8, the protrusion 1a2 is arranged on the peripheral wall ( (peripheral wall of the board case 9b). Note that the same applies to the motor control unit 10. In this way, in the embodiment, even if a force (displacement force) parallel to the longitudinal direction of the frame 1 is applied to the power supply control unit 9 when the power supply control unit 9 is attached to the bottom part 1a, the power supply control unit 9 can prevent the power control unit 9 from moving in the longitudinal direction of the frame 1 due to interference with the protrusion 1a2. Note that similar effects can be obtained with the motor control unit 10 as well.

2-1-2 Side wall portion 1b
As shown in FIG. 7A, the side wall portion 1b is connected to the bottom surface portion 1a and is provided so as to rise from the bottom surface portion 1a. As shown in FIG. 12C, the side wall portion 1b includes a hook portion 1b1 and a regulating portion 1b2. The hooking portion 1b1 is configured to be able to be hooked onto the bracket 2. The hook portion 1b1 is formed on the outside of the frame 1. The regulating portion 1b2 prevents the power control unit 9 and the motor control unit 10 from moving in the vertical direction and shaking when the power control unit 9 and the motor control unit 10 are installed on the frame 1. The regulating portion 1b2 protrudes into the frame 1 (into the space that accommodates the power supply control unit 9 and the motor control unit 10).

2-1-3 Side wall portion 1c
The side wall portion 1c has the same configuration and the same function as the side wall portion 1b. As shown in FIG. 7A, the side wall portion 1c is connected to the bottom surface portion 1a and is provided so as to rise from the bottom surface portion 1a. As shown in FIG. 12C, the side wall portion 1c includes a hook portion 1c1 and a regulating portion 1c2. The hook portion 1c1 is configured to be hookable on the bracket 2. The hook portion 1c1 is formed on the outside of the frame 1. The regulating portion 1c2 prevents the power control unit 9 and the motor control unit 10 from moving in the vertical direction and shaking when the power control unit 9 and the motor control unit 10 are installed on the frame 1. The regulating portion 1c2 protrudes into the frame 1 (into the space that accommodates the power supply control unit 9 and the motor control unit 10).

2-2 Bracket 2
As shown in FIGS. 14A and 14B, the bracket 2 includes a bracket main body 2A, a slide block 2B, and a coil spring (not shown). The coil spring is provided so as to be interposed between the bracket main body 2A and the slide block 2B. The coil spring urges the slide block 2B forward. The basic configuration and functions of the bracket 2 are the same as those of the bracket disclosed in, for example, Japanese Patent Application Laid-Open No. 2014-211059, and therefore the description thereof will be omitted as appropriate.

A slide block 2B is attached to the bracket main body 2A so as to be movable in the front-rear direction. Note that the bracket body 2A is configured such that the slide block 2B does not move in the vertical direction and the horizontal direction. The bracket main body 2A includes a hooked portion 2a and an engaging protrusion 2b. A hooking portion 1b1 of the side wall portion 1b of the frame 1 is hooked onto the hooked portion 2a. The engaging protrusion 2b is attached to the hooked portion 2a, and has a function of regulating the movement of the hooking portion 1b1 in the front-rear direction.

The slide block 2B has a hooked portion 2c and an engaging protrusion 2d. A hook portion 1c1 of the side wall portion 1c of the frame 1 is hooked onto the hook portion 2c. In addition to the function of regulating the movement of the hook part 1c1 in the front-rear direction, the engagement protrusion 2d also controls the engaged state of the engagement mechanism, which will be described later, by being pushed by the upper end of the frame 1. configured to release. The slide block 2B is provided movably between a front position and a rear position. As shown in FIG. 14A, before the frame 1 is attached to the bracket 2, the slide block 2B is in the rear position. Here, when the slide block 2B is located at the rear position, the slide block 2B is urged forward by the coil spring, but the bracket main body 2A and the slide block 2B are provided with an engagement mechanism. Therefore, the slide block 2B continues to remain in the rear position. Note that this engagement mechanism corresponds to, for example, the temporary locking protrusion and temporary locking portion in JP-A No. 2014-211059. As shown in FIGS. 14A and 14B, when the frame 1 is attached to the bracket 2, when the engagement protrusion 2d is pushed by the upper end Sr2 of the side wall 1c of the frame 1, the engagement of the engagement mechanism is released. be done. As a result, the slide block 2B moves forward from the rear position to the front position, and the hooked portion 2c moves forward. As a result, the hooked portion 1c1 of the frame 1 is hooked on the hooked portion 2c.

2-3 Side bracket 3
As shown in FIGS. 4 and 10, the side bracket 3 includes a main body member 3a and a cover member 3b.

The main body member 3a is configured in a plate shape. A hook portion 3a1, an upper hole portion 3a2, and a lower hole portion 3a3 are formed in the main body member 3a. The hook portion three a1 is formed on the upper part of the main body member 3a, and is hooked onto the frame 1. An upper fixing member 3a4 (for example, a screw) is inserted into the upper hole 3a2, and the upper fixing member 3a4 is inserted into the gap between the protrusions 1a2 of the frame 1 and fastened to the protrusions 1a2, thereby fixing the main body member. 3a is fixed to the frame 1. That is, the protruding portion 1a2 has a function as a screw hole to which the upper fixing member 3a4 is fastened. A lower fixing member 3a5 (for example, a screw) is inserted into the prepared hole 3a3, and the motor unit 8 is fixed to the side bracket 3 by fastening the lower fixing member 3a5 to the case support portion 8c. On the right side of the electric roll screen 100, the winding pipe 7 is supported by a motor unit 8, the motor unit 8 is supported by a main body member 3a, and the main body member 3a is supported by the frame 1.

As shown in FIG. 4, the cover member 3b is attached to the main body member 3a so as to hide the screw heads of the above-mentioned upper fixing member 3a4 and lower fixing member 3a5.

2-4 Motor Unit As shown in FIGS. 3B and 10, the motor unit 8 includes a motor case 8a, a motor 8b, a case support part 8c, a rotating part 8d, a motor adapter 8e, a board 8f, and a rotary motor. It includes an encoder 8g and a light receiving section 8h. In the embodiment, the motor case 8a, the motor 8b, a part of the case support part 8c, a part of the rotating part 8d, and the motor adapter 8e are housed in the winding pipe 7. Thereby, the electric roll screen 100 can suppress an increase in width in the left and right direction.

As shown in FIG. 10, the motor case 8a has an upper case 8a1 and a lower case 8a2, and the motor 8b is housed between the upper case 8a1 and the lower case 8a2. The lower case 8a2 has an insertion portion 8a21, and the insertion portion 8a21 is supported by the case support portion 8c by being inserted into the case support portion 8c.

As shown in FIG. 10, the motor 8b includes a motor main body portion 8b1, a shaft 8b2, and a transmission portion 8b3. The motor 8b includes a casing and parts (for example, a stator, a rotor, etc.) provided within the casing. A cross-shaped transmission portion 8b3 is attached to the tip of the shaft 8b2. The transmission section 8b3 is attached to the motor adapter 8e. The rotation of the shaft 8b2 is transmitted to the motor adapter 8e via the transmission section 8b3. Since the motor adapter 8e is provided so as to be in contact with the inner circumferential surface of the take-up pipe 7, when the rotation of the shaft 8b2 is transmitted to the motor adapter 8e, the take-up pipe 7 rotates.

As shown in FIG. 10, since the case support part 8c is fixed to the side bracket 3, the case support part 8c cannot rotate. The case support portion 8c has a shaft-like protrusion 8c1 and a board accommodating portion 8c2. A rotary portion 8d is rotatably attached to the outer peripheral portion of the shaft-like protrusion 8c1. An insertion portion 8a21 of the lower case 8a2 is inserted into the inner peripheral portion of the shaft-like protrusion 8c1. Note that the lower case 8a2 is not rotatable. The substrate accommodating portion 8c2 accommodates a substrate 8f and a light receiving portion 8h. In other words, a space is formed between the board accommodating part 8c2 and the side bracket 3 (main body member 3a), and the board 8f and the light receiving part 8h are arranged in the space.

As shown in FIG. 10, the rotating portion 8d has a cylindrical portion 8d1, a support portion 8d2, and an opening portion 8d3. The cylindrical portion 8d1 is rotatably provided on the case support portion 8c. An opening 8d3 is formed in the center of the rotating portion 8d, and a shaft-like protrusion 8c1 of the case support portion 8c is inserted into the opening 8d3. The support portion 8d2 is in contact with the inner circumferential surface of the take-up pipe 7, and the support portion 8d2 has a function of supporting the take-up pipe 7. A plurality of support portions 8d2 are provided so as to be lined up in the circumferential direction of the cylindrical portion 8d1. The support portion 8d2 is formed to protrude in parallel to the left-right direction of the electric roll screen 100 (the axial direction of the winding pipe 7).

As shown in FIG. 3B, the rotary encoder 8g has a function of detecting the amount of rotation of the winding pipe 7. The rotary encoder 8g includes, for example, a light emitting element 8g1 and a light receiving element 8g2. The light emitting element 8g1 is attached to the rotating part 8d, and the light receiving element 8g2 is attached to the case support part 8c. The output of the rotary encoder 8g (light receiving element 8g2) is sent to the substrate 8f.

As shown in FIG. 10, the light receiving section 8h is configured to receive an output from a remote controller. In the embodiment, since the remote controller outputs an infrared signal, the light receiving section 8h is configured with an infrared sensor. The output of the light receiving section 8h is sent to the substrate 8f.

2-5 Power control unit 9
As shown in FIGS. 5 and 6A, the power supply control unit 9 includes a power supply board 9a (an example of a circuit board) and a board case 9b (an example of a board case). The power supply control unit 9 has an elongated shape as a whole, and the power supply control unit 9 is housed in the frame 1 so that its longitudinal direction is parallel to the longitudinal direction of the frame 1.

The power supply board 9a has a circuit that lowers the voltage of AC voltage and converts AC into DC. The power supply board 9a converts the alternating current received from the power branch unit 11 into direct current. As shown in FIG. 2, the power supply board 9a, the board 8f, and the motor 8b are connected in series in this order, and the motor 8b is supplied with power from the power supply board 9a via the board 8f. The power supply board 9a is housed within a board case 9b.

As shown in FIG. 6A, the board case 9b includes a base portion 9b1 and a cap portion 9b2. The base portion 9b1 includes a housing portion 9b11, a contact surface portion 9b12, and a fitting portion 9b13. The bottom surface of the base portion 9b1 is connected to the frame 1 by connecting (fitting) the fitting portion 9b13 to the hole 1a1 of the frame 1.

As shown in FIG. 6A, the accommodating portion 9b11 is a box-shaped member with an open top, and a cap portion 9b2 can be attached thereto. The power supply board 9a can be accommodated in the accommodation portion 9b11. An engagement hole 9b14 is formed in the housing portion 9b11, and the engagement hole 9b14 can be engaged with the cap portion 9b2. A cutout 9b15 is formed in the housing portion 9b11 for passing the wiring.

As shown in FIGS. 12A to 12C, the contact surface portion 9b12 is formed with a fitting portion 9b13 that projects downward. The contact surface portion 9b12 is provided on the bottom surface of the base portion 9b1. When the power supply control unit 9 is attached to the frame 1, the lower surface of the contact surface portion 9b12 is in contact with the upper surface of the bottom surface portion 1a of the frame 1. A curved surface is formed on the lower surface of the contact surface portion 9b12, and the curved surface is curved in an arc shape so as to protrude upward. Here, since curved surfaces with similar curvatures are formed on the lower surface of the contact surface portion 9b12 and the upper surface of the bottom surface portion 1a, when the base portion 9b1 is installed on the frame 1, the contact surface portion 9b12 The entire surface of the base portion 9b1 comes into contact with the bottom surface portion 1a, and it is possible to suppress the base portion 9b1 from shaking on the frame 1.

As shown in FIGS. 12A to 12C, the fitting portion 9b13 is configured to be connectable (fitable) to the hole 1a1 of the frame 1. The fitting part 9b13 is a protrusion that is provided on the bottom surface of the base part 9b1 and projects downward. In the embodiment, the fitting portion 9b13 will be described as a protrusion, but it is not limited to this. For example, the entire bottom surface of the base portion 9b1 may be formed in a conical shape, The structure may be such that it fits into the frame 1. The fitting portion 9b13 has a shape corresponding to the hole 1a1 of the frame 1, and the fitting portion 9b13 is formed to extend parallel to the longitudinal direction of the frame 1. The fitting portions 9b13 are formed in two rows in the front and rear. A contact surface portion 9b12 is provided between the two rows of fitting portions 9b13. In this way, since the base portion 9b1 is fixed to the frame 1 by the fitting portion 9b13, it is possible to prevent the power supply control unit 9 from shifting when the electric roll screen 100 is installed.

In the front-rear direction of the frame 1, the width of the fitting portion 9b13 is preferably greater than or equal to the width of the hole 1a1. As a result, the fitting portion 9b13 is fitted (press-fitted) into the hole 1a1, and the hole 1a1 is more reliably fitted into the fitting portion 9b13.

As shown in FIG. 12C, in a state where the fitting part 9b13 is fitted into the hole 1a1, the fitting part 9b13 is housed in the hole 1a1. That is, the height and width (width in the vertical direction) of the fitting part 9b13 are set so that the fitting part 9b13 does not protrude from the hole 1a1. Thereby, it is possible to prevent the design of the electric roll screen 100 from deteriorating. In addition, as shown in FIG. 12C, in the embodiment, when the fitting part 9b13 is inserted into the hole 1a1, the lower surface of the fitting part 9b13 is formed so as to smoothly connect with the lower surface of the frame 1. . That is, a curved surface is formed on the lower surface of the fitting part 9b13, and the curved surface is curved in an arc shape so as to protrude upward. The curvature of the curved surface is the same as the curvature of the lower surface of the bottom portion 1a. Thereby, the hole portion (hole portion 1a1) of the frame 1 becomes less noticeable, and the design of the electric roll screen 100 is improved.

In the embodiment, the base portion 9b1 is provided with two rows of fitting portions 9b13, but there may be one row, or three or more rows. Further, although the fitting portion 9b13 extends parallel to the longitudinal direction of the frame 1, the fitting portion 9b13 is not limited thereto, and may extend parallel to the lateral direction (front-back direction) of the frame 1, for example. .

As shown in FIG. 6A, the cap portion 9b2 is a lid-like member configured to be attachable to the base portion 9b1. As shown in FIGS. 6A, 9A, and 9B, the cap portion 9b2 includes a mounting cap portion 9b21, an extension cap portion 9b22, an end wall portion 9b23, a notch portion 9b24, a relief portion 9b25, and a rib 9b26. We are prepared. Although the cap portion 9b2 is configured to be removable from the base portion 9b1, the cap portion 9b2 is not limited to this, and may be rotatably attached via a hinge mechanism, for example.

As shown in FIG. 6A, the mounting cap part 9b21 is attached to the base part 9b1 so as to cover the upper part of the base part 9b1, and has a function of preventing the power supply board 9a from being exposed to dust or the like. An extension cap portion 9b22 is connected to the longitudinal end of the attachment cap portion 9b21. When the extension cap portion 9b22 is viewed from the top, the extension cap portion 9b22 is provided so as to protrude in the longitudinal direction of the frame 1 from the position where the base portion 9b1 is disposed. Thereby, even if electronic components such as wiring and connectors are disposed under the extension cap portion 9b22, it is possible to suppress dust from accumulating on the electronic components. Further, the cap portion 9b2 is provided within the frame 1 such that the top of the cap portion 9b2 is lower than the top of the frame 1. Specifically, as shown in FIG. 12C, when the board case 9b is attached to the frame 1, the upper end surface Sr1 of the mounting cap part 9b21 and the extension cap part 9b22 is below the position of the upper end part Sr2 of the frame 1. It has become. This allows the board case 9b to fit within the frame 1, making it possible to prevent the board case 9b from interfering with the bracket 2, as shown in FIGS. 14A and 14B. Further, since the board case 9b is housed within the frame 1, the electric roll screen 100 becomes compact and the design is improved.

As shown in FIG. 9B, the end wall portion 9b23 is connected to the end side of the extension cap portion 9b22, and the end wall portion 9b23 is provided so as to extend downward from the connection position with the extension cap portion 9b22. . A space is formed between the end wall portion 9b23 and the base portion 9b1 in which electronic components such as wiring and connectors are arranged. In other words, by arranging the electronic components in the space, the operator can prevent the inside of the frame 1 from becoming cluttered with wiring and the like. A notch 9b24 is formed in the end wall 9b23. The notch 9b24 is formed for passing wiring. In addition, in the embodiment, the end wall portion 9b23 is formed with a cutout portion 9b24, but it may be an opening portion.

As shown in FIG. 6A, the relief portion 9b25 is formed on the upper surface of the cap portion 9b2 (the upper surface of the attachment cap portion 9b21 and the upper surface of the extension cap portion 9b22). The relief portions 9b25 are formed to extend in the longitudinal direction of the frame 1, and two rows of relief portions 9b25 are formed in the front and rear. As shown in FIGS. 14A and 14B, the relief portion 9b25 prevents the cap portion 9b2 and the bracket 2 from interfering when the frame 1 is attached to the bracket 2. The upper surface of the relief portion 9b25 is tapered (slanted surface) and is formed to escape from the bracket 2.

As shown in FIGS. 9B and 12C, the ribs 9b26 have a function of restricting movement of the upper side of the board case 9b when the board case 9b is attached to the frame 1. The ribs 9b26 are formed to extend in the longitudinal direction of the frame 1, and the ribs 9b26 are formed in two rows in the front and rear. Each rib 9b26 is connected to each relief portion 9b25. In a state where the board case 9b is attached to the frame 1, a restriction portion 1b2 is arranged above the front rib 9b26, and a restriction portion 1c2 is arranged above the rear rib 9b26. When a force is applied to the board case 9b so that the board case 9b moves upward, the ribs 9b26 interfere with the regulating part 1b2 or the regulating part 1c2, and the upward movement of the board case 9b is restricted. . This can prevent the cap portion 9b2 from coming off the base portion 9b1 and the power source board 9a from popping out from the board case 9b when the electric roll screen 100 is installed.

It is preferable that one longitudinal end of the cap portion 9b2 of the power supply control unit 9 is disposed adjacent to and continuous with the cap portion 9b2 of the motor control unit 10. Note that the cap portion 9b2 of the power supply control unit 9 and the cap portion 9b2 of the motor control unit 10 do not need to be in complete contact with each other. Further, it is preferable that the other longitudinal end of the cap portion 9b2 of the power supply control unit 9 is disposed adjacent to and continuous with the cap portion 11b2 of the power supply branching unit 11. Note that the cap portion 9b2 of the power supply control unit 9 and the cap portion 11b2 of the power supply branch unit 11 do not need to be in complete contact with each other.
By arranging the cap portions 9b2 and 11b2 in this manner, it is possible to suppress the formation of a gap between the respective cap portions 9b2 and 11b2, and it is possible to effectively suppress the accumulation of dust on electronic components, etc. .

2-6 Motor control unit 10
The motor control unit 10 differs from the power supply control unit 9 in that it includes a control board 10a, but the other configurations are the same as the power supply control unit 9, so a description thereof will be omitted as appropriate. As shown in FIG. 6B, the motor control unit 10 includes a control board 10a (an example of a circuit board) and a board case 9b (an example of a board case).

The control board 10a has a function of controlling the operation of the motor 8b of the motor unit 8 based on various signals output from the board 8f. The control board 10a is housed in a board case 9b. In the embodiment, the various signals output from the board 8f are, for example, a signal from the light receiving section 8h, a signal from the rotary encoder 8g, and the like.

The board case 9b of the motor control unit 10 has the same configuration as the board case 9b of the power supply control unit 9. That is, the board case 9b of the motor control unit 10 includes a base portion 9b1 and a cap portion 9b2, and the base portion 9b1 includes a housing portion 9b11, a contact surface portion 9b12, and a fitting portion 9b13. .

2-7 Power branch unit 11
As shown in FIGS. 5 and 11A, the power branch unit 11 includes a power branch wiring section 11a and a power branch wiring section case 11b. The power supply branch wiring section 11a has a connector section 11a1 and a cord 11a2. The cord 11a2 is connected to the connector portion 11a1, and the cord 11a2 is configured to electrically connect between different electric roll screens 100. In the power supply branch wiring section 11a, wiring is branched so that commercial alternating current can be distributed to other electric roll screens 100.

The cord 11a2 is configured to electrically connect the power cable c1, the power supply board 9a, and a different electric roll screen 100. As shown in FIG. 11C, the cord 11a2 includes first to fourth cords 11a21 to 11a24. One end of the first cord 11a21 and the second cord 11a22 is connected to a first connector portion 11a11, which will be described later, and the other end of the first cord 11a21 and the second cord 11a22 is connected to a third connector portion 11a13, which will be described later. is connected to. One ends of the third cord 11a23 and the fourth cord 11a24 are connected to a second connector portion 11a12, which will be described later. The other end of the third cord 11a23 is connected to the first cord 11a21 at position P, and the other end of the fourth cord 11a24 is connected to the second cord 11a22 at position P. Further, the first cord 11a21 and the third cord 11a23 are crimped by a crimp sleeve at the position P, and similarly, the second cord 11a22 and the fourth cord 11a24 are crimped by the crimp sleeve at the position P. ing.

In the embodiment, the connector portion 11a1 includes a first connector portion 11a11, a second connector portion 11a12, and a third connector portion 11a13. As shown in FIG. 11A, each of the first to third connector parts 11a11 to 11a13 has three terminal parts (two terminal parts sb and one terminal part st). In the embodiment, two terminal parts sb are used, and the terminal part st is not used. That is, the first to fourth cords 11a21 to 11a24 are connected to the terminal portion sb, but no cord is connected to the terminal portion st. In the embodiment, the connector portion 11a1 having three terminal portions is used from the viewpoint of versatility, but the present invention is not limited to this. Each of the first to third connector parts 11a11 to 11a13 may have a form without the terminal part st. The first connector part 11a11 is connected to a power cable c1 for supplying commercial power, and the second connector part 11a12 is connected to the power supply board 9a. Further, the third connector portion 11a13 is connected to a different electric roll screen 100. That is, the third connector portion 11a13 is connected to the power crossover cable c2. The cord 11a2 is configured to connect the first connector portion 11a11 and the second connector portion 11a12, and to connect the first connector portion 11a11 and the third connector portion 11a13.

Further, as shown in FIG. 11, the first to third connector parts 11a11 to 11a13 each have a male connector part 11am and a female connector part 11af. The male connector portion 11am is configured to be connectable to the female connector portion 11af, and conversely, the female connector portion 11af is configured to be connectable to the male connector portion 11am. Note that the male connector parts 11am and the female connector parts 11af cannot be connected to each other. Thereby, incorrect wiring can be prevented.

In particular, in the case of the embodiment, since the plurality of electric roll screens 100 are electrically connected by the power crossover cables c2 and c3, the influence of incorrect wiring becomes large. In other words, if a short circuit occurs due to incorrect wiring in one electric roll screen 100, not only the various boards (power supply board 9a, control board 10a, board 8f) of the one electric roll screen 100 but also other There is a possibility that even the various boards (power supply board 9a, control board 10a, and board 8f) of the electric roll screen 100 will fail. The connector portion 11a1 in the embodiment has a configuration in which a male connector portion 11am and a female connector portion 11af form one pair. Since the male connector parts 11am and the female connector parts 11af cannot be connected to each other, it is possible to prevent short circuits due to incorrect wiring and, in turn, to prevent failures of various boards of other electric roll screens 100.

As shown in FIG. 11A, the power branch wiring section case 11b includes a base section 11b1 and a cap section 11b2. The power branch wiring part case 11b is configured to cover at least the upper part of the connector part 11a1. The base portion 11b1 includes a housing portion 11b11, a contact surface portion 11b12, and an engaging portion 11b13 as an example of a second engaging portion that engages with the first engaging portion. By inserting the engaging portion 11b13 into the protruding portion 1a2 of the frame 1, the base portion 11b1 engages with the frame 1 so as to be slidable in parallel to the longitudinal direction of the frame 1.

As shown in FIG. 11A, the accommodating portion 11b11 is a box-shaped member with an open upper part, and a cap portion 11b2 can be attached thereto. The power supply branch wiring section 11a can be accommodated in the accommodation section 11b11. An engagement claw 11b14 is formed in the housing portion 11b11, and the engagement claw 11b14 can be engaged with an engagement hole 11b24 formed in the cap portion 11b2. A notch 11b15 is formed in the accommodating portion 11b11 for passing the wiring.

As shown in FIGS. 11A and 13A, the contact surface portion 11b12 is provided between the pair of engaging portions 11b13, and the contact surface portion 11b12 is installed on the frame 1 in a state in which it is in contact with the frame 1. In addition, although the embodiment will be described on the assumption that the contact surface portion 11b12 comes into contact with the frame 1, the present invention is not limited to this. Since the base portion 11b1 is supported by the frame 1 via the engaging portion 11b13, the base portion 11b1 does not need to have the contact surface portion 11b12. As shown in FIG. 13A, a curved surface is formed on the lower surface of the contact surface portion 11b12, and the curved surface is curved in an arc shape so as to protrude upward. Since curved surfaces with similar curvatures are formed on the lower surface of the contact surface portion 11b12 and the upper surface of the bottom surface portion 1a, when the base portion 11b1 is installed on the frame 1, the entire surface of the contact surface portion 11b12 is curved. Since the base portion 11b1 comes into contact with the bottom surface portion 1a, it is possible to suppress the base portion 11b1 from shaking on the frame 1.

As shown in FIG. 11B, the engaging portion 11b13 is configured to be able to engage with the protruding portion 1a2 of the frame 1. The engaging portion 11b13 is a protrusion provided on the bottom surface of the base portion 9b1 and protrudes downward. In a state where the engaging portion 11b13 is engaged with the protruding portion 1a2, the base portion 11b1 can slide in parallel to the longitudinal direction of the frame 1. That is, the protruding part 1a2 functions as a guide rail for the engaging part 11b13, and the engaging part 11b13 can slide on the protruding part 1a2.
In the embodiment, the description will be made assuming that the engaging portion 11b13 is convex and the protruding portion 1a2 is concave; however, the present invention is not limited to this. may be convex. The engaging portion 11b13 is formed to extend parallel to the longitudinal direction of the frame 1. The engaging portions 11b13 are formed in two rows, front and rear. A contact surface portion 9b12 is provided between the two rows of engaging portions 11b13. In this way, since the base portion 11b1 has the engaging portion 11b13, the operator can easily slide the power branch unit 11 within the frame 1.

In the embodiment, the base portion 11b1 is provided with two rows of engaging portions 11b13, but there may be one row, three or more rows. Furthermore, although the engaging portions 11b13 extend parallel to the longitudinal direction of the frame 1, they are not limited thereto; for example, they may extend parallel to the lateral direction (front-back direction) of the frame 1. .

As shown in FIG. 6B, the cap portion 11b2 is a lid-like member configured to be attachable to the base portion 11b1. The cap portion 11b2 includes an attachment cap portion 11b21, an extension cap portion 11b22, and a relief portion 11b23. The cap portion 11b2 is provided to cover the upper part of the connector portion 11a1. Although the cap portion 11b2 is configured to be removable from the base portion 11b1, the present invention is not limited to this, and may be rotatably attached via a hinge mechanism, for example.

As shown in FIG. 6B, the mounting cap part 11b21 is attached to the base part 11b1 so as to cover the upper part of the base part 11b1, and has a function of preventing the power branch wiring part 11a from being exposed to dust or the like. Extension cap portions 11b22 are connected to both ends of the mounting cap portion 11b21 in the longitudinal direction, respectively. When the extension cap portion 11b22 is viewed from above, the extension cap portion 11b22 is provided so as to protrude in the longitudinal direction of the frame 1 from the position where the base portion 11b1 is disposed. Thereby, even if electronic components are placed under the extension cap portion 11b22, it is possible to suppress dust from accumulating on the electronic components. Further, the cap portion 11b2 is provided within the frame 1 such that the top of the cap portion 11b2 is lower than the top of the frame 1. Specifically, as shown in FIG. 13B, when the power supply branch wiring case 11b is attached to the frame 1, the upper end surface Sr3 of the mounting cap portion 11b21 and the extension cap portion 11b22 is higher than the upper end portion Sr2 of the frame 1. It is below the position. Thereby, the power supply branch wiring part case 11b is accommodated within the frame 1, and interference between the power supply branch wiring part case 11b and the bracket 2 can be avoided. Moreover, since the power supply branch wiring part case 11b is housed within the frame 1, the electric roll screen 100 becomes compact and the design is improved.

As shown in FIG. 6B, the relief portion 11b23 is formed on the upper surface of the cap portion 11b2 (the upper surface of the attachment cap portion 11b21 and the upper surface of the extension cap portion 11b22). The relief portions 11b23 are formed to extend in the longitudinal direction of the frame 1, and the relief portions 11b23 are formed in two rows in the front and rear. As shown in FIGS. 15A and 15B, the relief portion 11b23 prevents the cap portion 9b2 and the bracket 2 from interfering with each other when the frame 1 is attached to the bracket 2. The upper surface of the relief portion 9b25 is an inclined surface and is formed to escape from the bracket 2.

In the embodiment, as shown in FIG. 11A, from the viewpoint of suppressing dust from adhering to the connector part 11a1, the length Wa1 of the extension cap part 11b22 in the longitudinal direction of the frame 1 is set to It is longer than the length Wb1 of the connector portion 11a1. In the embodiment, in addition to this, the length Wa2 of the extension cap portion 11b22 in the longitudinal direction of the frame 1 is longer than the length Wb2 of the connector portion 11a1 in the longitudinal direction of the frame 1. Note that the length Wa2 does not necessarily have to be longer than the length Wb2, but by making the length Wa2 longer than the length Wb2, it is possible to ensure that dust does not adhere to the connector portion 11a1. can be suppressed to
Further, in the embodiment, as shown in FIG. 13B, the width Wc of the power branch wiring part case 11b in the lateral direction of the frame 1 is wider than the width Wd of the opening of the frame 1 in the lateral direction of the frame 1. ing. This makes it difficult for dust to enter the frame 1.

3. Description of Installation Method A method of installing a plurality of (three in the embodiment) electric roll screens 100 will be described. Furthermore, in the description here, it is assumed that the operator attaches the electric roll screen 100 to the bracket 2 in the order of left, center, and right sides. Further, the operator fixes the bracket 2 of each electric roll screen 100 to the ceiling or the like.

First, the left electric roll screen 100 is attached to the bracket 2.
The operator mounts the power supply control unit 9 and the motor control unit 10 on the frame 1 of the electric roll screen 100 on the left side, respectively. Specifically, as shown in FIG. 12B, when inserting the power control unit 9 into the opening of the frame 1, the worker holds the power control unit 9 diagonally so that one side of the power control unit 9 is facing downward. Tilt. After the worker advances one side of the power supply control unit 9 into the frame 1 , the operator lowers the other side of the power supply control unit 9 and places the power supply control unit 9 into the frame 1 . Then, as shown in FIG. 12C, the operator pushes the fitting part 9b13 of the power supply control unit 9 into the hole 1a1 of the frame 1, and press-fits the fitting part 9b13 into the hole 1a1. The method for attaching the motor control unit 10 to the frame 1 is the same as that for the power supply control unit 9, so a description thereof will be omitted. The operator also connects the power crossover cable c3 to the power control unit 9 in advance. Note that the operator only has to mount the power supply control unit 9 and the motor control unit 10 on the frame 1 of the electric roll screen 100 on the left side. That is, the operator does not need to mount the power supply branch unit 11 on the frame 1 of the electric roll screen 100 on the left side.

Next, the operator attaches the left electric roll screen 100 to the bracket 2. Specifically, as shown in FIGS. 14A, 14B, 15A, and 15B, the operator hooks the hook part 1b1 of the frame 1 to the hooked part 2a of the bracket 2, rotates the frame 1, Press the upper end of the frame 1 against the engagement protrusion 2d. As a result, the engaged state of the slide block 2B is released, the slide block 2B moves forward, and the hook portion 1c1 of the frame 1 is hooked on the hook portion 2c of the bracket 2.

Next, the central electric roll screen 100 is attached to the bracket 2.
An operator mounts a power supply control unit 9, a motor control unit 10, and a power supply branching unit 11 on the frame 1 of the central electric roll screen 100, respectively. The mounting method of the power supply control unit 9 and the motor control unit 10 is the same as that of the electric roll screen 100 on the right side, so a description thereof will be omitted. The operator connects the power crossover cable c3 pulled out from the electric roll screen 100 on the left side to the power branch unit 11. As shown in FIGS. 13A and 13B, the operator lowers the power supply branch unit 11 vertically downward from the opening of the frame 1, and engages the engaging portion 11b13 with the protruding portion 1a2 of the frame 1. Then, the operator attaches the power supply branch unit 11 to the frame 1 in the same manner as the electric roll screen 100 on the left side, and then attaches the electric roll screen 100 (frame 1) to the bracket 2.

Finally, the left electric roll screen 100 is attached to the bracket 2.
The operator connects the power crossover cable c3 to the power control unit 9 in advance. Thereafter, the operator mounts the power supply control unit 9, motor control unit 10, and power supply branching unit 11 on the frame 1, similarly to the electric roll screen 100 on the right side. Finally, the operator attaches the electric roll screen 100 (frame 1) to the bracket 2.

Note that the above installation method is an example. For example, the worker temporarily fastens the frame 1 to the bracket 2, and in this temporarily fastened state, the worker attaches the power control unit 9, etc. to the frame 1, and connects the power supply branch unit 11, etc. to the power crossover cable c2, etc. connection work may be performed.

4 Modification 4-1 Modification 1
In the embodiment, the relief portion 9b25 is formed in a tapered shape, but the present invention is not limited to this. For example, the relief portion 9b25 may be formed with a step. That is, when attaching the frame 1 to the bracket 2, the front side relief part 9b25 is stepped so that interference with the bracket 2 can be avoided on the movement locus in the direction toward the engagement protrusion 2b. may be formed. Note that when attaching the frame 1 to the bracket 2, the slide block 2B moves forward. When the slide block 2B moves forward, the engagement protrusion 2d moves toward the escape part 9b25, but because the escape part 9b25 on the rear side is formed with a step, the escape part 9b25 moves toward the engagement protrusion 2d. It is also possible to avoid interference with

4-2 Modification 2
In the embodiment, an electronic component is arranged under the extension cap portion 11b22, and a configuration is adopted in which dust is suppressed from adhering to the electronic component, but the present invention is not limited to this. For example, a transparent resin sheet may be provided instead of the extension cap portion 11b22.

4-3 Modification 3
It is also effective to arrange a transparent resin sheet in the area T shown in FIG. 1B. Thereby, when attaching the frame 1 to the bracket 2, it is possible to prevent the power crossover cable c2 from being pinched by the bracket 2.

4-4 Modification 5
As shown in FIG. 16, the cap part 11b2 of the power branch wiring part case of the power branch unit may include end wall parts 11b25 provided at both ends in the longitudinal direction. A cutout portion 11b26 is formed in this end wall portion 11b25. The end wall portion 11b25 and the notch portion 11b26 have the same functions and effects as the end wall portion 9b23 and the notch portion 9b24 described in the embodiment.

4-5 Modification 5
In the embodiment, the frame 1 has been described as having the hole 1a1, but the present invention is not limited to this. In modification 5, the frame 1 includes a bottom portion 1a, a pair of side wall portions 1b and 1c facing each other, and a protrusion portion 1a2. The board case 9b, which is an example of a component, may have a configuration in which movement of the board case 9b is restricted by engaging with a recess formed by the bottom portion 1a and the protruding portion 1a2. Here, for convenience of explanation, it is assumed that the recessed portion is formed by the bottom portion 1a and the protruding portion 1a2. This recess is a bottomed recess formed in the frame 1, unlike the hole 1a1, which is a through hole formed in the frame 1 as in the embodiment. Note that the recessed portion may be formed by the side wall portion 1b or the side wall portion 1c in addition to the bottom portion 1a and the protrusion portion 1a2.

When the board case 9b, which is an example of a component, engages with this recess, movement of the board case 9b is restricted, and the same effects as in the embodiment can be obtained. Specifically, while the board case 9b is engaged with the recess, the board case 9b is arranged within the recess so that movement of the board case 9b is restricted. Note that when the board case 9b engages with this recessed portion, there may be some gap between the board case 9b and the frame 1. In other words, the board case 9b does not need to be press-fitted into the recess, and it is sufficient that the board case 9b is engaged with the side wall 1c or the protrusion 1a2 so that the board case 9b does not wobble within the recess.

Further, the width of the board case 9b may be larger than the width of the recess. As a result, the board case 9b is press-fitted into the recess, and the board case 9b is fitted into the recess. Thereby, the board case 9b is more firmly fixed to the recess. Note that the above-mentioned width dimension is a dimension in a direction parallel to the longitudinal direction of the frame 1 or a dimension in a direction parallel to the lateral direction of the frame 1.
Further, the shape of the recessed portion is not particularly limited, and may be recessed in a tapered shape or recessed in parallel to the vertical direction, for example. Further, the bottom surface part itself or the side surface itself of the board case 9b may fit into the recessed part of the present modification example 5, or as described in the embodiment, the fitting part 9b13 of the board case 9b may fit into the recess part of the modification example 5. The configuration may be such that it fits into the recessed portion of No. 5.

1 : Frame 1a : Bottom part 1a1 : Hole part 1a2 : Engagement part 1b : Side wall part 1b1 : Hook part 1b2 : Regulation part 1c : Side wall part 1c1 : Hook part 1c2 : Regulation part 2 : Bracket 2A : Bracket body 2B : Slide Block 2a: Hooked part 2b: Engagement protrusion 2c: Hooked part 2d: Engagement protrusion 3: Side bracket 3a: Main body member 3a1: Hooking part 3a2: Upper hole 3a3: Lower hole 3a4: Upper fixing member 3a5 : Lower fixing member 3b : Cover member 4 : Screen 5 : Weight bar 6 : Shield 7 : Winding pipe 8 : Motor unit 8a : Motor case 8a1 : Upper case 8a2 : Lower case 8a21 : Insertion part 8b : Motor 8b1 : Motor Main body part 8b2 : Shaft 8b3 : Transmission part 8c : Case support part 8c1 : Axial protrusion 8c2 : Board housing part 8d : Rotating part 8d1 : Cylindrical part 8d2 : Support part 8d3 : Opening part 8e : Motor adapter 8f : Board 8g : Rotary encoder 8g1 : Light emitting element 8g2 : Light receiving element 8h : Light receiving part 9 : Power supply control unit 9a : Power supply board 9b : Board case 9b1 : Base part 9b11 : Accommodation part 9b12 : Contact surface part 9b13 : Fitting part 9b14 : Engagement Hole 9b15 : Notch 9b2 : Cap part 9b21 : Mounting cap part 9b22 : Extension cap part 9b23 : End wall part 9b24 : Notch part 9b25 : Relief part 9b26 : Rib 10 : Motor control unit 10a : Control board 11 : Power supply branch unit 11a : Power supply branch wiring section 11a1: Connector section 11a11: First connector section 11a12: Second connector section 11a13: Third connector section 11a2: Cord 11a21: First cord 11a22: Second cord 11a23: Third cord 11a24: Fourth cord 11b : Power supply branch wiring part case 11b1 : Base part 11b11 : Accommodation part 11b12 : Contact surface part 11b13 : Engagement part 11b14 : Engagement claw 11b15 : Notch 11b2 : Cap part 11b21 : Mounting cap part 11b22 : Extension cap part 11b23 : Relief part 11b24 : Engagement hole 100 : Electric roll screen Sp : Space Sr1 : Upper end surface Sr2 : Upper end part Sr3 : Upper end surface c1 : Power cable c2 : Power crossing cable c3 : Power crossing cable c4 : Wiring

Claims (10)

comprising a frame and a power branch unit provided within the frame,
The power branch unit has a connector part, a cord, and a case,
the connector part is connected to the cord,
the cord is configured to electrically connect between different motorized shielding devices;
The electric shielding device is configured such that the case covers at least an upper portion of the connector portion. The electric shielding device according to claim 1,
Further equipped with a power supply board,
The electric shielding device is configured such that the cord electrically connects a power cable for supplying commercial power, the power supply board, and the different electric shielding device. The electric shielding device according to claim 2,
The connector portion has first to third connector portions connected to the cord,
The first connector part is connected to the power cable,
The second connector part is connected to the power supply board,
The third connector part is an electric shielding device connected to the different electric shielding device. The electric shielding device according to claim 3,
further comprising a board case accommodating the power supply board,
The frame has a bottom part and a side wall part,
The case and the board case of the power branch unit are installed on the bottom part,
The side wall portion is provided so as to rise from the bottom surface portion,
In the electric shielding device, the power cable passes between the side wall portion and the board case. The electric shielding device according to any one of claims 1 to 4,
The case is an electric shielding device provided so as to cover an upper part of the connector part. The electric shielding device according to claim 5,
The case has a base portion and a cap portion,
The cap section is an electric shielding device, wherein the cap section includes a mounting cap section attached to the base section and an extension cap section provided so as to protrude from the base section. The electric shielding device according to claim 6,
The electric shielding device, wherein the length of the extension cap portion in the longitudinal direction of the frame is longer than the length of the connector portion in the longitudinal direction of the frame. The electric shielding device according to any one of claims 1 to 7,
An opening is formed in the upper part of the frame,
The case is configured to be inserted into and engaged with the frame through the opening of the frame. The electric shielding device according to claim 8,
The electric shielding device wherein the width of the case in the lateral direction of the frame is wider than the width of the opening of the frame in the lateral direction. The electric shielding device according to any one of claims 1 to 5,
The frame has a first engagement part,
The first engaging portion extends in the longitudinal direction of the frame,
The case has a base portion,
The connector portion is provided on the base portion, and a second engagement portion is formed on the bottom surface of the base portion,
The second engaging part is configured to engage with the first engaging part, and is configured to be slidable in the longitudinal direction of the frame in a state where the second engaging part is engaged with the first engaging part. Shielding device.