JPH0713585Y2 - Curtain opening / closing mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to an electrically operated curtain opening / closing mechanism that allows facility work to be performed easily, for example.

(B) Conventional technology Conventionally, a curtain opening / closing mechanism has a built-in motor and a drive device that transmits power by a drive shaft (output unit), and a rope that opens and closes the curtain by being rotated by the drive shaft (output unit) described above. The base for supporting the drive pulley for moving the is formed separately, and these are connected at the time of the facility for assembling the curtain opening / closing mechanism.

Further, a positioning device for regulating the opening / closing position of the curtain is integrally arranged at a position adjacent to the drive device having the drive shaft (output section) described above, and the positioning device is rotated by the movement of the rope described above. It is connected to a positioning rotating body that determines the opening / closing position of the curtain, and this rotating body is supported by the above-mentioned base.

Therefore, when the drive shaft (output unit) is connected to the drive pulley, the rotary shaft (input unit) must be connected to the positioning rotary body at the same time.

Each of these shafts, that is, the drive shaft (output unit) and the rotary shaft (input unit) is thin, and has a shape for performing spline fitting for transmitting power to the drive pulley and the positioning rotary body. They are opposed to each other with a certain space. Therefore, these two drive shafts (output unit) and rotary shafts (input unit)
At the same time, the axial shape of each shaft is aligned with the shaft holes of the drive pulley and the positioning rotary body, and two parallel shafts are similarly forward and backward and left and right with respect to the two parallel shaft holes. Its position must be determined and a mating connection must be made.

After fitting, to fix the fitting, to the base,
The curtain opening / closing mechanism was assembled by fixing the drive unit and the positioning unit with a large number of bolts.

(C) Problems to be solved by the invention Since the equipment was installed by the above-described method, two parallel shafts formed so as to require spline fitting should be used while matching their axial shapes. It is very difficult to position the shaft of the book in the front-rear direction and the left-right direction and insert and fit it into the thin shaft hole at the same time.

Moreover, since the device to be attached is heavy and this work is performed at a high position, the work efficiency is poor.

In addition, in order to maintain this state after connecting the drive shaft (output unit) and the rotating shaft (input unit) in the drawing, in order to maintain this state,
The driving device and the positioning device, which are integrated with each other, must be fixed with a large number of bolts and the like, and workability is only deteriorated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to propose a curtain opening / closing mechanism that facilitates the work of assembling equipment for the curtain opening / closing mechanism and can firmly establish the mounting state.

(D) Means for Solving the Problems The present invention is directed to a base supporting a drive pulley on which a rope for opening and closing a curtain is stretched, and a curtain positioning rotating body that is rotated by the movement of the rope. A curtain opening / closing mechanism for mounting a drive device connecting the output part to the input part of the drive pulley, and a positioning device adjacent to the drive device and connecting the input part to the output part of the rotating body for positioning the curtain. And is engaged with and disengaged from the mutual joint surface portion of the base unit that connects the input / output unit of the drive unit and the drive pulley with the drive unit by rotation in the circumferential direction about the axis of the input / output unit. Locking means is formed, and the driving device is fixed to the base by the locking means, and the positioning device is disengaged from the positioning rotary body input section of the base along one side surface of the driving device. Slidably attached to the The curtain opening / closing mechanism is characterized in that the positioning device is fixed by fixing means with the input / output portions of the positioning device and the rotating device for positioning being connected.

(E) Action In the curtain opening / closing mechanism of the present invention, the output portion (drive shaft) of the drive device is connected to the drive pulley, and the joint surface at the upper end of the drive device is joined to the base through the locking means. The joining position is stopped at a position where the input / output portions of the positioning device and the rotating body on the base side face each other.

Then, the positioning device is slid to the base side, and the input portion (rotating shaft) of the positioning device is connected to the positioning rotating body supported on the base. In this connection, the work proceeds more smoothly if the shape of the shaft hole is formed so that it is not necessary to match the shaft shape of the rotating shaft. After that, the position of the positioning device with respect to the base is fixed by fixing the connected state to the drive device, the base, or both using the fixing means.

At the same time, the position of the drive device with respect to the base is fixed without play.

(F) Effect of the invention As described above, according to the invention, the output section (driving shaft) and the input section (rotating shaft) of each device to be connected may be connected separately, so that they are performed simultaneously. It is lighter and easier to carry out.

Moreover, the connection of the input portion (rotating shaft) of the positioning device is extremely easy because the previously fixed drive device does not require positioning in the front-rear direction.

Therefore, even if the heavy lifting work is a heavy object mounting work at a high place, it is easy to assemble the curtain opening / closing mechanism.

Further, since the positioning device is fixed by the fixing means after the driving device is independently locked to the base, unlike the conventional case where a large number of bolts and the like are used, all the bolts must be used for the fixing means. Bolt tightening work can be eliminated, work can be performed easily, and workability is significantly improved.

In addition, the two devices have a high reliability with respect to the fixed state because, for example, if the positioning device is firmly fixed, the other driving device can also be firmly fixed.

(G) Embodiment An embodiment of the present invention will be described in detail below with reference to the drawings.

The drawing shows a curtain opening / closing mechanism that opens and closes electrically. In FIG. 3, the curtain opening / closing mechanism 1 pivotally supports a draw pulley 4 on the left end of a curtain rail 3 installed above a window frame 2,
On the other hand, a drive pulley 5 is attached to the right end of the curtain rail 3.
And the pulling pulley 4 and the drive pulley 5
A rope 6 for opening and closing the curtain is stretched in a loop between and.

On the other hand, a large number of runners 7 are provided inside the curtain rail 3 described above.
... is inserted so as to be able to travel, and a large number of these runners 7 are equally divided into left and right, and a pair of left and right top runners 8,
8 is inserted so as to be able to run, and both ends of the curtain opening / closing rope 6 are fixed to the respective leading runners 8,8, and then the left and right divided runners 7 ... and the respective leading runners 8,8. Two curtains 9 and 9 are hung on each.

As shown in FIGS. 4 and 5, the drive pulley 5 is rotatably supported inside a flat box-shaped base 10, and the drive device 11 is inserted into the shaft hole 5a of the drive pulley 5. The drive shaft 12 driven by a motor (not shown) is driven.

Here, as shown in FIG. 1, the above-described drive device 11 has substantially snowball-shaped rotation locking holes 13 formed at two positions facing each other at appropriate positions around the above-mentioned drive shaft 12 on the upper surface. ing.
In addition, L-shaped guide pieces 14a, 14b bent inward are formed at both end edges of the one side surface 14, and a main connector for connecting with the above-mentioned motor (not shown) is provided inside one of the guide pieces 14a, 14b. 15
Is installed.

The base 10 supporting the drive pulley 5 into which the drive shaft 12 of the drive device 11 is fitted is formed in a U-shaped cross section as shown in FIGS. 4 and 5. With the opening side of the plate 10a facing downward, the pulley box 10
The drive pulley 5 and the guide pulleys 16, 16 are rotatably supported inside the pulley box 10b. Each of the guide pulleys 16 and 16 has a gear 16a on its upper surface.
Is integrally formed, and these gears 16a, 16a are meshed with a positioning rotating body 17 which is rotatably supported in the central portion.
Then, the rotation shaft 19 protruding from the upper surface of the positioning device 18 located on the left side of the drive device 11 is fitted into the shaft hole 17a of the positioning rotation body 17 to move the rope 6 by itself. Is received as the rotation of, and its output is input to the positioning device 18 via the above-described rotation shaft 19.

The shaft hole 17a is set to have an uneven polygonal shape that is an integral multiple of the rotation shaft 19 as shown in the drawing, and the inner surface is formed so that the rotation shaft 19 can be fitted without adjusting the shaft shape. It may be formed in a taper.

The end portion of the curtain rail 3 is held by the engaging member 20 ahead of the pulley box 10b of the mounting plate 10a.

Further, as shown in FIG. 4, on the back surface of the pulley box 10b, there are formed rotation locking projections 21 and 21 which are inserted into the above-described rotation locking hole 13 and lock. That is, the head 21a
It is formed in a mushroom shape thicker than 21b.
The head 21a is inserted into the larger hole, the insertion hole 13a, and the one side surface 14 on which the guide pieces 14a and 14b of the drive unit 11 are formed is rotated to the curtain rail 3 direction, that is, to the left side shown in FIG. At this time, the body portions 21b, 21b are locked in the smaller holes of the rotation locking holes 13, 13 and the locking holes 13b, 13b.

With the positioning device 18 described above, by pushing the set button 18b slidably engaged with the counter case 18a,
A pair of open / close counters built in the counter case 18a 1
Reset 8c and 18c at any OPEN and CLOSE positions,
Each of the counters 18c, 18c has a function of automatically stopping the left and right curtains 9, 9 between the OPEN position and the CLOSE position by stopping the driving of the drive motor (not shown) at the respective reset positions. , The sub-connector 22 connected to the main connector 15 attached to the drive unit 11 is connected to the main connector 15
It is installed at the position corresponding to.

The corresponding position means that the guide piece 14a of the drive device 11 described above,
The position where the above-mentioned main connector 15 is subtracted by sliding the positioning device 18 on the one side surface 14 having 14b, and the upper surfaces thereof are flush with each other.

When the positioning device 18 just described is slid on the driving device 11, the above-mentioned driving device is attached to both edges of the rear surface of the positioning device 18.
Sliding is possible by forming slide grooves 23 corresponding to the 11 guide pieces 14a, 14b.

Further, as shown in FIG. 1, on the upper end surface of the positioning device 18, a fixing tool 24, that is, a tip portion hops slightly upward, and a locking piece 24a having a substantially L-shaped cross section is provided in a central hole. The slide piece 24b which it has is attached. The locking piece 24a is screwed into a bolt 24c screwed from the lower surface of the slide piece 24b, and normally,
The upper surface of the slide piece 24b and the lower surface of the locking piece 24a are prevented from coming into close contact with each other. As shown in FIG. 5, this fixture 24 has a locking piece 24a slid on the inner side surface 3a of the curtain rail 3 and a sliding piece 24b slid on the lower end surface 3b of the curtain rail 3 and screwed into both bolts 24c. By tightening
The position of the positioning device 18 described above is fixed via the curtain rail 3.

The curtain opening / closing mechanism 1 is configured as described above, and its operation will be described below.

First, the drive shaft 12 of the drive device 11 is fitted into the shaft hole 5a of the drive pulley 5 which is supported by the base 10. The drive shaft 12 is aligned with the shaft hole 5a, and the rotation locking projections shown in FIG. 4 are inserted into the insertion holes 13a, 13a of the rotation locking holes 13, 13 on the upper surface of the drive device 11 as shown in FIG. Insert 21,21. After inserting and contacting the upper surface of the drive device 11 with the base 10, the drive device 11 is rotated so that the one side surface 14 having the guide pieces 14a and 14b faces inward of the base 10.
The body portions of the rotation locking projections 21, 21 are locked in the locking holes 13b, 13b.

After that, the slide groove 23 of the positioning device 18 slides on one side surface 14 of the drive device 11, that is, the inside of the guide pieces 14a, 14b. Then, the sliding shaft is moved upward to position the rotary shaft 19 in the left-right direction about the drive shaft 12, and the rotary shaft 19 and the shaft hole 17a of the positioning rotary body 17 are aligned. Then, the rotary shaft 19 is fitted into the shaft hole 17a of the positioning rotary body 17.

At this time, the fixture 24 attached to the upper surface of the positioning device 18
Then, the position of the positioning device 18 with respect to the base 10 is determined.
After inserting the locking piece 24a into the inner side surface 3a of the curtain rail 3 and simultaneously sliding the slide piece 24b onto the lower surface 3b of the curtain rail 3, the bolt 24c may be tightened.

Therefore, the drive device 11 in which the drive shaft 12 is fitted into the shaft hole 5a of the drive pulley 5 by being rotationally locked to the base 10 first, causes the joint surface to rotate in the left-right direction, but has a play in the vertical direction. There is no such condition, and the fitting work of the rotary shaft 19 that slides on this and later fits to the positioning rotary body 17 is reduced to one direction, which was conventionally two directions, and axis alignment and fitting are performed. Has become easier to do.

Further, since the positioning device 18 which is inseparable by sliding on the drive device 11 which is rotationally locked to the base 10 is fixed to the transmission base 10 by only one bolt 24c, its fixing means and work are easy. At the same time, at the same time, the unfixed rotation of the drive device 11, which has been made inseparable by sliding, in the left-right direction is firmly fixed without rattling.

Since the drive device 11 and the positioning device 18 can be easily attached to the base 10, the workability can be improved even when the drive device 11 where the work is heavy is carried out at a high position. it can. Moreover, the mounting state does not change at all from the conventional case where a large number of bolts are used for fixing, in other words, the fixing is more efficient and firm.

The embodiment described above is merely an example, and can be variously changed.

For example, in the previous embodiment, the fixture is
The positioning device 18 fixed to the base 10 by using 24 may be fixed to the driving device 11 side on which the positioning device 18 is slid, as shown in FIG. In this case, the positional relationship of the positioning device with respect to the base does not change, and the state of firm attachment of both devices does not change from the above-described embodiment. Further, by using the leaf spring 25, the time and effort for screwing the bolt can be saved, and the operation becomes simpler.

The correspondence relationship between the configuration of the present invention and the configuration of the above-described embodiment is shown. The output portion and the input portion of the present invention correspond to the drive shaft 12 and the rotary shaft 19 of the embodiment, respectively, and the locking means. Corresponds to the rotation locking hole 13 and the rotation locking projection 21, and the fixing means corresponds to the fixture 24 and the leaf spring 25.

[Brief description of drawings]

 The drawings show an embodiment of the present invention, FIGS. 1 and 2 are perspective views showing an operating state, FIG. 3 is a front view showing a curtain opening / closing mechanism, and FIG. 4 is a plan view showing a base. FIG. 5 is a sectional view of an essential part, and FIG. 6 is a partially cutaway sectional view showing another embodiment. 1 ... Curtain opening / closing mechanism, 5 ... Drive pulley 5a ... Shaft hole, 6 ... Rope 9 ... Curtain, 10 ... Base 11 ... Drive device, 12 ... Drive shaft 13 ... Rotation locking hole , 14 …… One side 17 …… Positioning rotating body, 17a …… Shaft hole 18 …… Positioning device, 19 …… Rotating shaft 21 …… Rotary locking projection, 23 …… Slide groove 4 …… Fixing tool, 25 …… Leaf spring

Claims (1)

[Scope of utility model registration request] 1. A base supporting a drive pulley on which a rope for opening and closing a curtain is stretched, and a curtain positioning rotating body that is rotated by the movement of the rope, and an output section for an input section of the drive pulley. A curtain opening / closing mechanism for mounting a drive device that connects the drive device and a positioning device that is adjacent to the drive device and that connects the input part to the output part of the positioning rotating body of the curtain, the drive device and the drive pulley. On the mutual joint surface portion between the base for connecting the input / output section and the drive unit, there is formed a locking means for engaging / disengaging by rotation in the circumferential direction about the axis of the input / output section. The drive unit is fixed to the base by a stopper, and the positioning unit is slidably attached to one side surface of the drive unit in the engagement / disengagement direction with respect to the positioning rotating body input unit; Inserting the positioning device and the rotating body for positioning And a force unit to the connected state, fixed curtain opening and closing mechanism the positioning device at fixing means.