JPH1046964A - Stop position adjusting device of motor-driven roll screen - Google Patents

Abstract

PROBLEM TO BE SOLVED: To adjust the stop position at least at the upper limit or lower limit wherein the arrangement is such that two switches for upper limit stopping and lower limit stopping can be accommodated consolidatedly in one takeup pipe. SOLUTION: A stop position adjusting device concerned for a motor-driven roll screen comprises a switch case 24 supported at one end by a side plate 12 and holding two limit switches 26 and 28, the first motion piece 36 which is engaged by a threaded portion 22a of a pipe receptacle cylinder 22 rotating in a single piece with a takeup pipe 10 and moves in the pipe longitudinal direction with rotation of the pipe to result in contacting with the limit switch 26, the second motion piece 38 which is coupled with the first piece 36 and moves in the pipe longitudinal direction together with the first piece 36 to result in touching the other limit switch 28, and an adjusting means 40 which has a dial 42 installed on the side with the side plate 12 and adjusts the spacing in the pipe longitudinal direction between the second piece 38 and the first piece 36.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stop position of an electric roll screen which incorporates a motor in a take-up pipe and rotates the take-up pipe in forward and reverse directions by operating the motor to wind up and down a raw cloth. The present invention relates to a stop position adjusting device for adjusting the stop position.

[0002]

2. Description of the Related Art Conventionally, as this kind of electric roll screen, there is one disclosed in Japanese Patent Application Laid-Open No. 4-247188. What is shown therein is a side cap which is attached to the winding pipe so as to rotate integrally with the winding pipe and has a threaded portion formed on the inner peripheral surface, a limit screw screwed into the side cap, and a limit screw. A screw guide disposed inside the screw guide so as not to rotate relative to the limit screw, and a radially projecting projection formed at a base end of the screw guide, and a rotation operation between the bracket base and the side case at a lower portion of the bracket base. It has an operation lever that is exposed as possible and a lower limit stop switch arranged at the upper part of the side case, and when the winding pipe is rotated by the operation of the motor and the screen cloth is lowered and lowered, As a result, the limit screw faces the bracket base because the side cap rotates together with the take-up pipe. Moved, the limit screw actuates the switch limit stop via a hinged lever, a state of operation of the motor screenshot raw fabric is stopped is lowered to the lower limit stop position.

When adjusting the lower limit stop position, the operation lever is rotated by a small angle to rotate the limit screw by a small angle to adjust the distance from the lower limit stop switch provided on the side cap. The lower limit position of the screen cloth is adjusted. Further, the upper limit stop switch is attached to a support member that supports the winding pipe, and the weight bar attached to the lower end of the screen cloth presses the upper limit stop switch, thereby stopping the operation of the motor. Thus, the screen cloth is raised to the upper limit stop position.

[0004]

However, in such a conventional structure, the upper limit stop switch is provided separately from the support member, and the lower limit stop switch is provided separately in the side case. In addition, since the wiring work is troublesome and requires a space for each switch, there is a problem that the electric roll screen becomes large.

Further, since the lower limit stop position is adjusted only within a limited rotation range of the operation lever, there is a problem that the adjustment range is limited. Judging from the description in the gazette, since the rotation range is about 1/4 rotation of the winding pipe, the height of the screen raw cloth can be only about 30 mm to 60 mm in consideration of the diameter of a normal winding pipe. further,
In the above conventional configuration, there is also a problem that the upper limit stop position cannot be adjusted.

[0006] The present invention has been made in view of such a problem, and an object of the invention described in claims 1 to 8 is:
Stop position adjustment of the electric roll screen, in which two switch means for stopping the upper limit and lower limit can be integrally accommodated in the winding pipe, and at least one of the upper and lower stop positions can be adjusted. It is intended to provide a device.

Another object of the present invention is as follows.
Another object of the present invention is to provide an electric roll screen stop position adjusting device that can adjust the stop position freely in a wide range in addition to the above objects. It is another object of the present invention to provide an electric roll screen stop position adjusting device capable of adjusting both the upper and lower stop positions in addition to the above objects.

[0008]

In order to achieve the above object, according to the first aspect of the present invention, a motor is built in a winding pipe whose both ends are rotatably supported by side plates, and A stop position adjusting device for an electric roll screen for adjusting a stop position of a lower limit and an upper limit of an electric roll screen of an electric roll screen for rotating a take-up pipe in a forward / reverse direction by operation and for winding and unrolling a cloth. A pipe receiving cylinder attached to the winding pipe so as to rotate integrally with the winding pipe, and a threaded portion formed on the inner peripheral surface; and a pipe receiving cylinder having one end supported by the side plate and the other end disposed inside the pipe receiving cylinder. And a switch case for holding two switch means for stopping the operation of the motor at predetermined intervals in the longitudinal direction of the winding pipe, and the screw portion of the pipe receiving cylinder. And the rotation of the winding pipe moves in the longitudinal direction of the winding pipe and acts on one of the switch means to activate the switch means. Body and
A second moving body connected to the first moving body and moving in the longitudinal direction of the winding pipe together with the first moving body and acting on the other of the switch means to operate the switch means; And an adjusting unit that adjusts a longitudinal interval of the winding pipe between the second moving body and the first moving body.

According to a second aspect of the present invention, in the first aspect, the adjusting means includes a non-circular shaft having one end fixed to the operation portion and extending in a longitudinal direction of the winding pipe.
A sliding screw shaft having an end fitted with the non-circular shaft, slidable along the non-circular shaft, and having a threaded portion formed on the outer periphery thereof. And is set so as not to rotate relative to the side plate, and the operation portion can be rotated 360 degrees or more.

According to a third aspect of the present invention, in the second aspect, the first movable body is fixed to the other end of the sliding screw shaft so as to be relatively rotatable. The body is connected to the first moving body. The invention according to claim 4 is the vehicle according to claim 3, wherein the first moving body is fixed to the other end of the sliding screw shaft at a non-center position, and the first moving body is fixed to the side by the sliding screw shaft. It is characterized in that it is set to be unable to rotate relative to the plate.

According to a fifth aspect of the present invention, in the first to fourth aspects, the second adjusting means for adjusting the longitudinal position of the winding pipe of the switch case provided on the side plate side. It is characterized by having. According to a sixth aspect of the present invention, in the first to fifth aspects, the switch case extends in a longitudinal direction of the winding pipe and penetrates the first moving body and the second moving body. It is characterized by.

According to a seventh aspect of the present invention, in the first to sixth aspects, the first movable body has the switch case having a non-circular cross-sectional contour and can slide on the first movable body. , So that it cannot be rotated relative to the side plate. The invention according to claim 8 is the vehicle according to claim 2 or 3, wherein the switch case having a contour of a non-circular cross section slidably penetrates the second mobile body. Thereby, it is set so as not to rotate relative to the side plate.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a stop position adjusting device for an electric roll screen according to the present invention, FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1, and FIG. FIG. 4 is a cross-sectional view taken along line 3, and FIG.
FIG. 5 is a cross-sectional view taken along line 4 and FIG. 5 is an exploded perspective view.

In FIG. 1, reference numeral 10 denotes a winding pipe, and a set frame 1 fixed to a window frame or the like by a bracket.
An upper end of a screen cloth 16 is attached to a take-up pipe 10 rotatably supported by a side plate 12 (only one side is shown) extending from both ends of the screen 4. 18 is
This is a weight bar provided at the lower end of the screen cloth 16.

At one end of the winding pipe 10, a stop position adjusting device 20 of the present invention is provided. Stop position adjusting device 2
Reference numeral 0 denotes a pipe receiving cylinder which is attached to an end of the winding pipe 10 and rotates integrally with the winding pipe 10 while being rotatably supported by the side plate 12. A female screw portion 22 a is formed on the inner surface of the body 22.

A switch case 24 is provided in the hollow portion of the pipe receiving cylinder 22, one end of which is supported by the side plate 12, and the other end of which extends inside the pipe receiving cylinder 22. That is, the switch case 24 is fixed to the side plate 1 by the adjusting screw (second adjusting means) 25 via the elastic body 23.
2, one end is attached to the switch case 24, and the motor 30 is attached to the other end of the switch case 24. A drive bush 32 is attached to an output shaft 30a of the motor 30, and the drive bush 32 is wound. The take-up pipe 10 is fitted on the inner surface of the pipe 10 and can rotate together with the output shaft 30a of the motor 30. The switch case 24 is provided at a predetermined interval in the longitudinal direction of the winding pipe 10 with the upper limit switch 2.
6 and the lower limit switch 28 are held,
Further, power supply lines 34, 34 to the motor 30 and the limit switches 26, 28 are routed, and grooves 24a extending in the longitudinal direction of the winding pipe 10 are formed (see FIGS. 2, 3, and 4).

Further, inside the pipe receiving cylinder body 22,
A first moving piece (first moving body) 36 is screwed into the female screw portion 22a of the pipe receiving cylinder 22 so that the switch case 24 passes therethrough. A second moving piece (second moving body) 38 that is not screwed with the female screw portion 22a of the receiving cylinder 22 is arranged. Second
The position of the moving piece 38 in the longitudinal direction of the winding pipe 10 can be displaced by adjusting means 40 described below, whereby the distance between the moving piece 38 and the first moving piece 36 is adjusted. That is, the adjusting means 40 includes a dial 42 as an operation unit rotatably supported on the side plate 12 side, and a dial 4.
The gear pipe 44 is provided at one end with a gear portion 44a meshing with the winding pipe 10.
A square axis (non-circular axis) 44 extending in the longitudinal direction of the
And the other end thereof is slidable along the square shaft 44 and has a male screw portion 46a formed on the outer periphery thereof. The second moving piece 38 is screwed into the male screw portion 46a of the sliding screw shaft 46. Furthermore, the sliding screw shaft 4
6 has a cylindrical portion 4 extending from the male screw portion 46a.
6b is provided, and the first moving piece 36 is
6b so as to be relatively rotatable.

First moving frame 36 and second moving frame 38
Is disposed between the upper limit switch 26 and the lower limit switch 28, and the first movable piece 36 and the second movable piece 38 are slidable on the switch case 22, respectively. As shown in FIGS. 2 and 3, since the switch case 22 has a non-circular cross-sectional profile, the first movable piece 36 and the second movable piece 38 are set so as not to rotate relative to the side plate 12. Is done. The first moving piece 36 screwed to the winding pipe 10 is fixed to the sliding screw shaft 46 at a non-center position of the first moving piece 36 so as to be relatively rotatable. Relative rotation is set to be impossible.

The stop position adjusting device 20 including the pipe receiving cylinder 22, the switch case 24, the first moving piece 36, the second moving piece 38, and the adjusting means 40 can be constituted by a unit, The switch case 24 in which the top 36 is in contact with the upper limit switch 26, the first moving top 36, the second moving top 38, and the pipe receiving cylinder 22 provided with the adjusting means 40 inside the screen raw cloth 16. The switch case 24 is attached to the side plate 12 with adjusting screws 25.
By being attached with, it can be incorporated into the winding pipe 10 (see FIG. 6). Motor 30 is also switch case 24
, And assembled with the winding pipe 10 together with the stop position adjusting device 20.

The upper limit switch 26 and the lower limit switch 28 are integrally held in the switch case 24 in advance before being incorporated in the winding pipe 10.
By arranging the power supply lines 34, 34 in the grooves 24a of the switch case 24, the mounting work and the wiring work including the motor 30 can be easily performed. Then, as shown in FIG. 1, when the screen cloth 16 is lowered and lowered to the position to be set as the lower limit stop position, the pipe receiving cylinder body 22 rotates integrally with the rotation of the winding pipe 10, so that The first moving piece 36 screwed to the pipe receiving cylinder 22 and set to be non-rotatable with respect to the side plate 12 slides on the outer surface of the switch case 24 to extend in the longitudinal direction of the winding pipe 10. , Move leftward in FIG. Along with the first moving piece 36, the sliding screw shaft 46 to which the first moving piece 36 is fixed moves along the square axis 44, and further, the second moving piece screwed to the sliding screw shaft 46. 38 also slides on the outer surface of the switch case 24 together.

As shown in FIG. 7, the screen cloth 16
Is lowered to the position desired to be set as the lower limit stop position, the lowering of the screen cloth 16 is stopped, and the dial 42 is rotated to rotate the square shaft 44. With the rotation of the square shaft 44, the sliding screw shaft 46 is rotated. In order to rotate, the second moving piece 38 screwed to the sliding screw shaft 46 and set so as not to rotate relative to the side plate 12 slides the switch case 24 along the sliding screw shaft 46 ( (FIG. 8). In this way, the second moving piece 38 is moved until it comes into contact with the lower limit switch 28, and the setting of the lower limit stop position is completed. At this time, since the first moving piece 36 is set to be rotatable relative to the sliding screw shaft 46, the first moving piece 36 does not move with respect to the rotation of the sliding screw shaft 46, Only the two moving frames 38 move. That is, since only the interval between the second moving frame 38 and the first moving frame 36 changes, the upper limit stop position does not change.

Since the dial 42 can be rotated by 360 degrees or more and there is substantially no limitation on the rotation range, the rotation of the dial 42 allows the sliding screw shaft 46 to freely rotate. Can be freely adjusted over a wide range. Then, if you want to change the upper limit stop position, move the screen cloth 1 to the set position.
6 is turned up or down, and an adjusting screw 25 supporting one end of the switch case 24 to the side plate 12 is turned to move the position of the switch case 24 in the longitudinal direction of the winding pipe 10 so that the upper limit switch 26 is moved to the second position. The upper limit switch 26 is brought into contact with one moving
, The upper limit stop position can be changed. When the upper limit stop position is changed, the position of the lower limit switch 28 also changes, so the lower limit stop position is set again by the above-described procedure.

In this manner, adjustment of both the upper and lower stop positions can be easily performed. Since the stop position adjusting device 20 can be unitized, its mounting is easy and
Since the limit switches 26 and 28 are accommodated in the winding pipe 10, the size of the electric roll screen does not increase. The electric roll screen with the stop position set as described above, during normal operation, operates the motor 30 to move the winding pipe 10 to the screen cloth 1.
When the screen cloth 16 is rotated in the lowering direction by six turns, the screen raw cloth 16 is lowered and lowered. With this, the pipe receiving cylinder 2
2 rotates integrally with the winding pipe 10, the first moving piece 36 screwed into the pipe receiving cylinder 22 and set so as not to rotate relative to the side plate 12 extends in the longitudinal direction of the winding pipe 10. , Move leftward in FIG. Along with the first moving piece 36, the sliding screw shaft 46 and the second moving piece 38 screwed thereto move together. Second moving piece 3
When the switch 8 comes into contact with the lower limit switch 28, the switch 28 is operated, the operation of the motor 30 is stopped, and the screen cloth 16 is stopped at the lower limit stop position.

On the other hand, when the winding pipe 10 is rotated in the winding direction of the screen cloth 16 by the operation of the motor 30, the screen cloth 16 is wound up and rises. Accordingly, the pipe receiving cylinder body 22 is reversely rotated integrally with the winding pipe 10, so that the first moving piece 36 screwed to the pipe receiving cylinder body 22 and set so as not to rotate relative to the side plate 12. Moves in the longitudinal direction of the winding pipe 10, that is, to the right in FIG. Along with the first moving piece 36, the sliding screw shaft 46 and the second moving piece 38 screwed thereto move together. When the first moving piece 36 comes into contact with the upper limit switch 26, the switch 26 is operated, the operation of the motor 30 is stopped, and the screen cloth 16 is stopped at the upper limit stop position (FIG. 9).

[0025]

As described above, according to the first aspect of the present invention, two switch means for stopping the upper limit and for stopping the lower limit are held in the switch case, and the switch case is connected to the winding pipe. Since it is housed inside, the mounting work and the wiring work are simple, and the switch means can be accommodated without increasing the size of the entire electric roll screen.

The stop position is adjusted by adjusting the distance between the first and second moving bodies operable with the respective switch means to adjust either the upper limit or the lower limit of the stop position. Can be. According to the second aspect of the present invention, by rotating the rotatable operation unit, the non-circular shaft is rotated, and the sliding screw shaft is rotated accordingly. The screwed second moving body moves in the longitudinal direction of the winding pipe, and adjusts the lengthwise interval of the winding pipe between the second moving body and the first moving body. Of the stop position can be adjusted. The operation unit can be rotated more than 360 degrees,
Since the sliding screw shaft can be freely rotated by the rotation of the operation unit, the position of the second moving body can be freely adjusted in a wide range.

According to the third aspect of the present invention, since the sliding screw shaft also has a role of connecting the first moving body and the second moving body, a separate connecting part is required. Therefore, the number of parts can be reduced. Claim 4
According to the described invention, since the sliding screw shaft also serves as a rotation stopper for the side plate of the first moving body, it is possible to reduce the number of parts without separately requiring a part for stopping rotation. it can.

According to the fifth aspect of the present invention, the second
The adjusting means can adjust both the upper and lower stop positions. According to the invention described in claim 6, the switch case extends in the longitudinal direction of the winding pipe and penetrates the first moving body and the second moving body, so that these parts can be made compact without interfering with these components. It can be accommodated in a winding pipe.

According to the seventh aspect of the present invention, since the switch case also serves as a rotation stopper for the side plate of the first moving body, a component for stopping rotation is not required separately, and the component is not required. The score can be reduced. According to the invention described in claim 8, since the switch case also serves as a rotation stopper for the side plate of the second moving body, the number of parts can be reduced without separately requiring a part for stopping rotation. can do.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an embodiment of a stop position adjusting device for an electric roll screen according to the present invention;
The state which lowers the screen cloth at the time of lower limit stop position adjustment is shown.

FIG. 2 is a sectional view taken along line 2-2 in FIG. 1;

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is an exploded perspective view of FIG.

FIG. 6 is a front view of the electric roll screen showing a state in which the screen cloth is at the upper limit stop position and the first moving frame is in contact with the upper limit switch.

FIG. 7 is a front view of the electric roll screen, showing a state where the screen cloth is lowered to a lowering stop position.

FIG. 8 is a front view of the electric roll screen showing a state in which a second moving piece is moved by operating a dial and brought into contact with a lower limit switch.

FIG. 9 is a front view of the electric roll screen, showing a state in which the screen cloth has risen to the upper limit stop position.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Winding pipe 12 Side plate 16 Screen cloth 20 Stop position adjusting device 22 Pipe receiving cylinder 22a Screw part 24 Switch case 25 Adjusting screw (Second adjusting means) 26 Upper limit switch (Switch means) 28 Lower limit switch (Switching means) 36 First moving piece (first moving body) 38 Second moving piece (second moving body) 40 Adjusting means 42 Dial (operation part) 44 Square axis (non-circular axis) 46 Sliding screw axis

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[Procedure amendment]

[Submission date] October 25, 1996

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] Fig. 1

[Correction method] Change

[Correction contents]

FIG.

[Procedure amendment 2]

[Document name to be amended] Drawing

[Correction target item name] Figure 3

[Correction method] Change

[Correction contents]

FIG. 3

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] Fig. 4

[Correction method] Change

[Correction contents]

FIG. 4

Claims (8)

[Claims] 1. An electric motor which incorporates a motor into a take-up pipe whose both ends are rotatably supported by side plates, and which rotates the take-up pipe in forward and reverse directions by operating the motor to raise and lower the raw fabric. A stop position adjusting device for an electric roll screen for adjusting a lower limit and an upper limit of a stop position of a raw cloth of a roll screen. And a pipe receiving cylinder having one end supported by the side plate and the other end extending inside the pipe receiving cylinder to stop the operation of the motor at predetermined intervals in the longitudinal direction of the winding pipe. A switch case for holding two switch means; and a screw case which is screwed to the screw portion of the pipe receiving cylinder and is set so as not to rotate relative to a side plate. A first moving body that moves in the longitudinal direction of the winding pipe by the rotation of the pump and acts on one of the switch means to actuate the switch means; and a winding pipe connected to the first moving body and the first moving body. A second moving body that moves in the longitudinal direction of the switch means and operates the switch means by acting on the other of the switch means; and an operating unit disposed on the side plate side, wherein the second moving body An adjusting means for adjusting a longitudinal distance between the take-up pipe and one moving body, and a stop position adjusting device for the electric roll screen. 2. The adjusting means has a non-circular shaft fixed at one end to the operating portion and extending in the longitudinal direction of the winding pipe, and the non-circular shaft is fitted at one end and is slidable along the non-circular shaft. A sliding screw shaft having a screw portion formed on the outer periphery thereof,
The second moving body is screwed to the threaded portion of the sliding screw shaft, and is set so as not to be able to rotate relative to the side plate, and the operating portion can be rotated 360 degrees or more. The stop position adjusting device for an electric roll screen according to claim 1, wherein: 3. The second moving body is connected to the first moving body by fixing a first moving body to the other end of the sliding screw shaft so as to be relatively rotatable. Item 3. The stop position adjusting device for an electric roll screen according to Item 2. 4. The method according to claim 1, wherein the first moving body is fixed to the other end of the sliding screw shaft at a non-center position, and is set so as to be unable to rotate relative to the side plate by the sliding screw shaft. The stop position adjusting device for an electric roll screen according to claim 3, wherein 5. The switch device according to claim 1, further comprising a second adjusting unit that adjusts a longitudinal position of the take-up pipe of the switch case provided on the side plate side. Stop position adjustment device for electric roll screen. 6. The switch case according to claim 1, wherein the switch case extends in a longitudinal direction of the winding pipe and penetrates the first moving body and the second moving body. Stop position adjustment device for electric roll screen. 7. The first movable body is set to be non-rotatable relative to the side plate by the switch case having a contour of a non-circular cross section slidably penetrating the first movable body. 7. The method according to claim 1, wherein:
A stop position adjusting device for an electric roll screen as described in the above. 8. The second movable body is set so as not to rotate relative to the side plate by the switch case having a contour of a non-circular cross section slidably penetrating the second movable body. 4. The method according to claim 2, wherein
A stop position adjusting device for an electric roll screen as described in the above.