JPH04113694U - electric blinds - Google Patents

Abstract

(57) [Summary] [Purpose] The gap between the bottom rail 7 and the down limit switch 4, which is caused by an insufficient number of slats 6 when the blind is fully closed, is fixed by the down limit switch 4 from the lower head box 31. Change the height and get rid of it. [Structure] A height adjusting member 40 provided with a plurality of grooves 44 is attached movably in the longitudinal direction of the side surface of the lower head box 31. The flange portion 4a formed on the side edge of the down limit switch 4 is inserted into the groove 44 and attached to the height adjustment member 40. The position of the down limit switch 4 toward the upper head box 31 can be adjusted by changing the position of the groove 44 into which it is inserted.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to an electric blind used for a skylight or an inclined window.

0002

[Conventional technology]

Conventional electric blinds for skylights or slanted windows have a blind opening on the window frame at one end. An open upper head box is provided, and the window frame on one end side is opposite to the window frame on the other end side. A lower headbox is provided for closing the blinds. In the upper headbox An up limit switch is attached so that it can be moved in the longitudinal direction, and the lower head A down limit switch is attached to the box so that it can be moved in the longitudinal direction. It will be done. When the up limit switch is fully opened, the top slat hits it. The blinds will stop opening. down limit switch When the blind is fully closed, the bottom rail installed at the bottom end of the slat will hit. Therefore, it is activated and stops closing the blinds.

0003

[Problem that the idea aims to solve]

However, the conventional electric blinds as mentioned above are limited in size between the opposing window frames. Since the dimensions vary, it is not always necessary to use blinds with dimensions that match the dimensions between the window frames. There is no guarantee that it can be used. Therefore, if the dimensions are not just right, When the switch is fully closed, there will be a gap between the bottom rail and the down limit switch, causing the bottom to close. Stopping the motor because the crossbar does not hit the down limit switch. I can't. For this reason, we added one slat to prevent gaps from forming. However, since the blind will be longer by the distance between adjacent slats, the blind will be longer than the missing dimension. The end is often long. In this case, even when the slats are completely closed, the rudder The code will not be under tension. The slats are fully closed and the rudder -If the cord is not under tension, it will not be able to rotate sufficiently, so close the gap. If you increase the number of slats for this reason, you will not be able to fully rotate the slats. Ru. The present invention aims to solve such problems.

0004

[Means to solve the problem]

This invention allows the limit switch to be adjusted to the head via the limit switch height adjustment mechanism. The above problem is solved by attaching it to the box. In other words, the present invention Yoru electric blinds are aligned by a ladder cord between two head boxes. An electric brine that opens and closes a large number of slats supported by a motor using the driving force of a motor. limit for detecting fully closed slats on one headbox side. Where the switch is located, the limit switch is limit switch whose position towards the head box can be adjusted via a height adjustment mechanism It is characterized by being attached to one head box. limit switch The head box height adjustment mechanism is controlled by a height adjustment member attached to one head box. The height adjustment member has a height adjustment member provided on the side edge of the limit switch. The groove into which the flange part can be inserted determines the height position toward the other head box. It can be changed to have multiple stages, and one head box a height adjusting member supported movably in the direction of the other head box; A screw mechanism or a screw that moves the joint member to a desired position in the movable direction and stops it. It can also be configured from a link mechanism. Also, electric blinds , an upper head box installed on the window frame on one end side, and the other side facing the window frame on one end side. Attached to the lower head box provided on the end window frame and the upper head box A guide wire fixing device, an up limit switch for fully open detection, and a lower part are included. Guide wire tensioning device attached to head box and downlink for fully closed detection Mitt switch and multiple slats supported in alignment by ladder cords a bottom rail located at one end of the slat row, and a guide wire fixture and guide. Guide passed through the slats and bottom rail between the wire tensioning device One end of the wire is connected to the bottom rail, and the other end passes through the slat. The opening cord connected to the rotating drum in the upper head box and the upper head box There is an upper motor installed inside the box that can drive the internal rotating drum, and a bottom motor. One end is connected to the murail and the other end is connected to the rotating drum in the lower head box. and a rotating drum inside this in the lower headbox. It has a lower motor that can drive the down limit switch. Limit switch height adjustment mechanism with adjustable position towards the upper head box It may be attached to the lower head box via.

[0005] The electric blind according to the present invention has a limit switch height adjustment mechanism. The position of the switch towards the opposite head box can be adjusted. Even if the length of the blind is insufficient, the limit switch position You can change it so that the bottom rail hits the limit switch. This results in The ladder cord is under tension when the blind is fully closed, so all slats are completely closed. Can be fully rotated.

[0006]

【Example】

Figure 1 shows the overall configuration of an electric blind. A bracket is attached to the window frame 17a on one end side. The upper head box 1 is attached by the upper head 16a. Also, window frame 17 A lower head bolt is attached to the window frame 17b on the other end side opposite to a by a bracket 16b. box 31 is attached. Guy attached to upper head box 1 An up limit switch 3 is integrally provided on the wire fixing device 2. An actuating portion 33 protrudes from the limit switch 3. Lower head box 3 1 through a guide wire adjustment device 5 and a limit switch height adjustment mechanism 60. A limit switch 4 is attached. Down limit switch 4 , the guide wire tensioning device is installed near ladder cord 11, which is the most suitable location for installation. It is placed avoiding the mounting position of 5. From the down limit switch 4, the actuating section 34 stands out. The guide wire 8 has a large number of slats 6 arranged at regular intervals. , a guide wire provided on the bottom rail 7 arranged parallel to these ends. A tension member is inserted between the guide wire fixing device 2 and the guide wire tensioning device 5 through the wire insertion hole. The slat 6 is being stretched so that it can be opened and closed along the window surface. I will guide you to. The opening code 9 is used when folding up the slats 6 to open the blinds. One end is attached to the bottom rail 7, and the other end is attached to the upper header. It is connected to a rotating drum 13 in the storage box 1, which will be described later. Closing code 10 is It is used when closing the blind by lowering the slat 6, and one end of it is attached to the bottom layer. The other end is attached to the rotary drive (described later) inside the lower head box 31. It is connected to the ram 313. One end of the ladder cord 11 is a shaft inside the bottom rail 7. (not shown), and the other end is inside the upper head box 1 (described later). It is provided so as to rotate by a predetermined angle in conjunction with the rotating drum 13.

[0007] Next, the structures of the upper head box 1 and the lower head box 31 will be explained. The upper head box 1 includes a motor 12 (upper motor), a rotating drum 13, and a drum. It has a built-in receiver 14, rotating shaft 15, etc. The rotating shaft 15 is the motor 1 2, it can be rotationally driven. The rotating drum 13 is integrated with the rotating shaft 15. It is provided to rotate and is housed in the drum receiver 14. rotating drum One end of the opening cord 9 and one end of the ladder cord 11 are connected to 13. However, the ladder cord 11 is prevented from rotating beyond a predetermined value. lower headboard The structure of the box 31 is almost the same as the upper head box 1, and the motor 312 (lower part motor), rotating drum 313, drum receiver 314, rotating shaft 315, etc. Built-in. The rotating shaft 315 can be rotationally driven by the motor 312. . The rotating drum 313 is provided to rotate together with the rotating shaft 315. and is accommodated in the drum holder 314. The rotating drum 313 has a closing cord. One end of 10 is connected.

[0008] Figure 2 shows a side view of the electric blind. On the side of the upper head box 1, there is a long A guide groove 20 extending in the hand direction is formed, and a guide wire is inserted into this guide groove 20. The flange portions 2a of the guide wire fixture 2 fit together, thereby securing the guide wire. The fixture 2 is movable along the guide groove 20. Up limit switch 3 confidence No. cable is installed inside the upper head box 1 or separately from the upper head box 1. and a control device (not shown). On the side of the lower head box 31 A guide groove 21 extending in the longitudinal direction is formed in this guide groove 21. Height adjustment member 40 (described later) to which limit switch 4 is attached The flange portion 42 of the height adjustment mechanism 60) and the flange of the guide wire tensioning device 5 The height adjusting member 40 and the guide are fitted together. The dwire tensioning device 5 is movable along the guide groove 21. down limits The switch signal cable 50 is provided inside the height adjustment member 40 and on the bottom surface thereof. Pass through the cable insertion hole 52 into the lower head box 31 or into the lower head box. 31 and is connected to a control device (not shown) installed separately. Upper headbutton Both the box 1 and the lower head box 31 have rails on the side opposite to the window. Shape grooves 23a and 23b are formed, and a decorative cover 18a is placed in the groove 23a. Decorative covers 18b are fitted into the grooves 23b, respectively. makeup cover 18 a covers the upper head box 1, up limit switch 3, actuating part 33, etc. The decorative cover 18b hides the lower head box 31 and limit switch. Covers the height adjustment member 40, down limit switch 4, actuating part 34, etc. ing.

[0009] The limit switch height adjustment mechanism 60 is shown in FIGS. 3 and 4. Limit switch The height adjustment mechanism 60 is constituted by a height adjustment member. Height adjustment member 40 is formed from a bottom surface 46 and a U-shaped side surface 48, and a flange is provided on the side edge of the bottom surface 46. A lunge portion 42 is provided on a pair of opposing side surfaces 48 at different height positions. Two stages of grooves 44 are provided. The flange portion 42 is attached to the lower head box 31. It is movably fitted into the idle groove 21. This is the down limit switch 4 By inserting the flange portion 4a provided on the side edge of the groove 44 into the height adjusting portion. It is attached to the material 40. In addition, the down limit switch 4 has a flange portion 4a By changing the position of the insertion groove 44, the position in the upper head box 1 direction can be changed. Adjustable.

0010 Next, the operation of the electric blind will be explained. First, when opening the blinds To explain the operation, when the motor 12 of the upper head box 1 is activated, the rotation The rotating drum 13 rotates via the rotating shaft 15, and one end is connected to the rotating drum 13. Wind up the release cord 9 that is shown. As the release cord 9 is wound up At the same time, the bottom rail 7 to which the other end of the release cord 9 is connected is connected to the upper head bolt. move in the box 1 direction and fold up slat 6. All slats 6 were When lifted up, the slat 6 hits the actuating part 33, so the up limit switch Switch 3 works. As a result, the motor 12 automatically stops.

[0011] Next, to explain the operation when closing the blinds, the lower head box When the motor 312 of 31 operates, the rotating drum 31 is rotated through the rotating shaft 315. 3 rotates and winds the closing cord 10, one end of which is connected to the rotating drum 313. I'll take it. As the closure cord 10 is wound up, other closure cords 10 The bottom rail 7, whose ends are connected, moves toward the lower head box 31 and Unload Rat 6. The bottom rail 7 operates when all the slats 6 are lowered. 34, so the down limit switch 4 is activated. As a result, motor 3 12 will automatically stop. Please note that the height position of the down limit switch depends on the The height adjustment member 40 is installed in advance so that it is in an appropriate position depending on the blind. is regulated by.

0012 The limit switch height adjustment mechanism 60 is not limited to the shape shown in the above embodiment. example For example, as shown in FIG. The height adjustment member 4 is attached to the adjustment screw 54 which is provided so as not to move in the axial direction. 0 female screw, and attach the down limit switch 4 to this height adjustment member 40. Attach the down limit switch 4 by rotating the adjusting screw 54. Limit switch height that can be moved up or down to adjust the position of the upper head box in one direction. A height adjustment mechanism 60 (that is, one using a screw mechanism) may also be used. Also, Figure 6 As shown in FIG. Connected to the bottom surface of the switch 4 and the bottom surface 46 of the height adjustment member 40, and connected to both sides of the link 56. Attach the side ends to opposite sides 48 of the height adjustment member 40 with screws 58, respectively. , by rotating the screw 58, the link 56 is moved up and down and the down limit switch is activated. A limit height adjustment mechanism 60 (i.e., a screw/linkage mechanism) that changes the height of the (using a jack consisting of

[0013]

[Effect of the idea]

As explained above, according to the present invention, the down limit switch can be Attaches to one lower headbox via a switch height adjustment mechanism. The position of the down limit switch towards the other head box can be adjusted by Therefore, even if the blind length is halfway short, the down limit Adjust the switch position so that the bottom rail hits the down limit switch. It can be done. This allows the rudder code to close when the slats are fully closed. All slats can be rotated completely since the slats are under tension. Ma In addition, even if the length of the blind changes due to elongation of the ladder cord, the The position of the limit switch can be adjusted freely, making it easy to use at the construction site. You can easily set it in the optimal position.

[Brief explanation of drawings]

FIG. 1 is an overall view showing an electric blind of the present invention.

FIG. 2 is a side view of FIG. 1;

FIG. 3 is a diagram showing an embodiment of the limit switch height adjustment mechanism of the present invention.

FIG. 4 is a sectional view from the lower head box to the down limit switch.

FIG. 5 is a diagram showing another embodiment of the limit switch height adjustment mechanism.

FIG. 6 is a diagram showing another embodiment of the limit switch height adjustment mechanism.

[Explanation of symbols]

1 Upper head box 2 Guide wire fixture 3 Up limit switch 4 Down limit switch 6 slats 7 Bottom rail 11 Ladder code 20 Guide groove 21 Guide groove 31 Lower head box 40 Height adjustment member 44 Groove 60 Limit switch height adjustment mechanism

Claims (4)

[Scope of utility model registration request] Claim 1: An electric blind that opens and closes a large number of slats supported in alignment by a ladder cord between two head boxes by the driving force of a motor, the blind having a function of detecting whether the slats are fully closed on one head box side. in which the limit switch is arranged, the limit switch is attached to one head box via a limit switch height adjustment mechanism whose position towards the other head box is adjustable. electric blinds. 2. The limit switch height adjustment mechanism includes a height adjustment member attached to one head box, and the height adjustment member includes a flange portion provided on the side edge of the limit switch. The electric blind according to claim 1, wherein the insertable groove is provided in a plurality of stages at different heights toward the other head box. 3. The limit switch height adjustment mechanism includes a height adjustment member supported by one head box so as to be movable in the direction of the other head box, and a height adjustment member that is moved to a desired position in the movable direction. The electric blind according to claim 1, comprising a screw mechanism or a screw/link mechanism for moving and stopping. 4. An upper head box provided on a window frame on one end side, a lower head box provided on a window frame on the other end side opposite to the window frame on one end side, and a guide wire fixing device attached to the upper head box. and an up limit switch for fully open detection, a guide wire tensioning device attached to the lower head box, a down limit switch for fully closed detection, a number of slats supported in alignment by a ladder cord, and one end of the slat row. a bottom rail disposed on the bottom rail, a guide wire passing through the slat and the bottom rail between the guide wire fixing device and the guide wire tensioning device, and a guide wire having one end connected to the bottom rail and passing through the slat. an opening cord whose other end is connected to the rotating drum in the upper head box; an upper motor which is installed in the upper head box so as to be able to drive the internal rotating drum; and one end connected to the bottom rail and the other. An electric blind for a skylight or an inclined window, having a closing cord whose end is connected to a rotating drum in a lower head box, and a lower motor installed in the lower head box to be able to drive the rotating drum inside the lower head box. In the electric blind, the down limit switch is attached to the lower head box via a limit switch height adjustment mechanism that can adjust the position of the down limit switch toward the upper head box.