JPS62284880A - Automatic control terminal apparatus of sunshade, rotary shutter and other drum type winder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 3. Detailed Description of the Invention (a) Industrial Application Field The present invention automatically stops the rotating drum for winding and detection of the movable part of the following equipment in combination with a manual electric reversing switch. The invention relates to awnings, rotary shutters, and other termination devices attached to winders.

(b) As is well known in the prior art, in the conventional structure of this type of device, two threaded rods are fixed at an angle to the rotating drum so that the sliding Φ nut moves along the rod as the drum and rod rotate. , each rod had a fixed sliding nut angle. 8 A sliding nut is combined with a stopper, which is activated when the corresponding nut comes to one of the ends of the alternating stroke, and acts on a switch connected to the energizing circuit of the drum ff1ltl motor via the tappet. Stop the motor.

The device is designed so that the two NΦ gun nuts move in opposite directions, so as long as the initial positions of these two nuts are correct, the i! Movable parts of the instrument to be IIMed (canvas,
shutter, etc.) can automatically stop the drum when it reaches one of the end-of-stroke.

(c) Problems to be Solved by the Invention The problem with this method is that in almost all cases the device is installed inside a rotating drum and in most cases it is virtually impossible to touch the nut, so there are no moving parts. It is difficult to initially adjust the device for the entire process. Therefore, this
In order to facilitate the operation, two independent attachment/detachment mechanisms have been installed on the above-mentioned termination device, by sweeping these, the user can temporarily remove the threaded rod corresponding to the drum. On the other hand, it is possible to act on a stopper or tappet in combination with the drum in order to close the corresponding switch.

As can be seen, if the manufacturer delivers the instrument with the two sliding nuts resting against the dowels in the off position, the user will be able to bring the movable part to one of the ends in the desired direction of travel. By turning on the reverse switch in a certain direction, sweeping can be repeated in the same way at the other end of the movable part's travel, so it is also possible to return to the original state by moving the attachment/detachment process. In other words, the final adjustment of the device can be made by using the motor to bring the movable parts to each end of their travel one after the other, each time moving the corresponding attachment/detachment mechanism.

This still poses a problem, however, when the user fails the first attempt or wishes to change the adjustment later on, the exact position of the sliding nut is not known and the user must make a new adjustment. Very delicate sweeping operations must be repeated.

(d) Means for solving the problem The present invention is primarily intended to solve this problem, and the main point of the invention is that the action of the return spring causes the spring to rotate relative to its threaded rod, and the abutment causes the spring to rotate relative to its threaded rod. Each of the two sliding nuts is combined with a loosening mechanism suitable for temporarily releasing the angular fixation of the nut so that it returns to the end of its travel in the supported direction.

For this system to work, of course, the threaded rod must have a steep lead that allows the nut to move longitudinally while rotating under the force of the return spring. The return spring has one end as a fixed point and the other fulcrum as the corresponding cross section of the nut, and the spring is wound around the shoulder of the threaded rod (this can be achieved relatively easily; It gets compressed when it leaves.

On the other hand, each of the two loosening mechanisms not only releases the combined nut, but also operates the control electric switch to connect the drum motor with electricity even when the nut is pressed against the stopper. Of course, it is impossible to do so.

In terms of structure, the 8-loosening mechanism preferably includes a cage that is angularly integrated with the corresponding sliding nut while allowing longitudinal movement of the nut. The cage is angularly fixed by a pinch placed under the appendage of the rotary or axial displacement sweep part for easy access as in conventional device attachment/detachment mechanisms.

(E) Effect 8 The angle of the sliding Φ nut 7 is fixed by the cage 13, and the cage has a fixed passing angle so that the nut can move along the threaded rod 5 in the longitudinal direction. Since the threaded lead of the rod 5 is steep to enable the rotation of the nut, the fixation can be released by the action of the spring 14 so that the nut can return at the neck that touches the stopper 8.

Therefore, the entire device can be reset to the O position when making a new adjustment.

(f) Examples The characteristics of the present invention and the advantages expected therefrom will be better understood by referring to the accompanying drawings attached for reference.

FIGS. 1 and 2 are two cross-sectional views showing the arrangement according to the invention.

FIG. 3 is an enlarged cross-sectional view of the plane indicated by ■--■ in FIG. 1, in which II and I[-n represent the cross-sections of FIGS. 1 and 2.

In this figure, it is assumed that the finishing device is installed inside a rotary drum 1 for winding up and checking the canvas for an awning. This drum 1 is rotated by a motor that is not visible in the figure, but this electric motor is also housed inside the drum, and its forward and reverse rotation directions are controlled by a reverse switch installed at an appropriate location in the motor's power connection circuit. The purpose of the illustrated termination device is to automatically cut off the current to this motor when the canvas reaches either end of its travel.

The entire device is housed inside a cylindrical frame 2, and is supported by a fixed base 3 at one end of the frame (on the left side in Figures 1 and 2). Connected to the angle of drum 1. The output shafts of the taunters are parallel to each other! The two gears 4 fixed to two threaded rods 5, 6 are driven in opposite directions. A sliding nut 7 is engaged with the 80 bolt 5.6, and when the angle of each nut 7 is held, if the two rods rotate in opposite directions, the nuts themselves can move in the opposite direction. I get it (two rods threaded in opposite directions can be rotated in the same direction and produce the same result).

At one end of both ends of the longitudinal stroke (at the left (II+') in FIGS. 1 and 2), each of the two nuts 7 has a dowel 8 into which a portion slightly thinner than the diameter of the corresponding rod 5 is inserted. and is interlocked by a return spring 9 attached to this.
A is connected by two threaded rods 5, 6, a tappet 10 extending in parallel, and a bottle. On the side opposite to the stand 3, the 8 tappets 10 are connected to the drive pallet 11 which acts on the micro switch 12 connected to the drive Φ motor power connection circuit, so when the pallet 11 is not pushed by the corresponding tappet 10, the above The circuit breaks.

The two l'H1jl nuts 7 are held at an angle by a cage 13 having a circular cross section. As shown in Figure 1, 8
A groove 13a is formed on the inner surface of the cage 13 at least in the direction of the mark.
There is a corresponding oak) 7ffl11 protrusion or tooth is biting in it. Assuming that the angle of the cage 13 is fixed, it will be seen that the joint action of the teeth and the nut 13a described above will cause the nut 7 to move axially along the corresponding threaded rod 5 or 6, but will be prevented from rotating. .

In addition, the lead of the 80-tread 5.6 thread is very steep (threads are strongly inclined to the axis), and each sliding nut 7 has a very narrow lead between the nut 7 and the rounded bottom of the corresponding cage 13. It is connected to a spring 14 that is engaged with the rod. This spring 14 is compressed when the connected nutman leaves the platform 3 (movement 1ij from left to right in FIG. 1).

8. The corners of the cage 13 are fixed by a pinch mechanism (see FIG. 3) that has a spring 15 (see FIG. 3) that engages the tapered end of the cage rotated in the direction of the microswitch.

One end of the 8 spring 15 is the [? It is fixed at a fixed point formed by a cylindrical flange 16a integral with W, and the bottom end is inserted into a groove 17a carved in an operating rod 17 extending parallel to the tappet 10 and the threaded rod 5.6.

The angle of the cage is maintained by the pressure in the radial direction applied to the tip of the corresponding cage 13 by the filaments of the eight springs 15. On the other hand, when the corresponding operating rod 17 is rotated, the angle of the cage 13 is resolved, causing the cage to rotate.In this way, the spring 15 plays the role of the bridge side of the assembled nut 7. I am accomplishing it.

On the opposite side of the spring or pinch 15 there is a 8 sweep bar 18 with a small sweep lever 1 accessible from outside the drum 1 of the device.
It has an 8 on it. At the bottom end of each operating rod supported by the bulkhead 16, there is a pentee 84 (pentee) located beyond the bulkhead.
) is attached, and this ring interlocks with the diagonal shoe integrated with one of the two pallets 11.
By sweeping the corners and ends of the eight rods 17, the control of the spring 15 and the operation of the corresponding microswitch 12 are performed at the same time when loosening the spring 15.

The operation and use of the termination device can now be easily deduced from the above description.

When a new awning is installed, if the two sliding nuts 7 are in position O, which indicates that they are in contact with the stopper 8, the user must move one of the two levers 18 to perform the first end control. You only need to manipulate one angle, and this will change the corresponding cage 1.
3 is released and the corresponding microswitch 12 is activated. A manual reversing switch can also be fed to the awning's electric cam motor to build up the canvas to the desired end.

During this operation, the sliding nut 7 of the cage 13, whose angle is fixed, moves along the threaded rod 5 or 6 and compresses the spring 14 communicating therewith.

By positioning this nut, the user can return the lever to its energized operating position.

The operation is repeated for the opposite end, ie sweeping the other lever 18, reversing the reversing switch, and returning the lever to the passing position. This determines the position of the two nuts 7 and automatically opens the current circuit of the Toka electric motor corresponding to the hit piece 8, as in the case of the conventional end position.

When there is a mistake in the adjustment work or an incorrect sweeping operation, or when reinstalling the sunshade on a window whose size requires changing the canvas stroke after removing the sunshade, the user must sweep and slide the two levers 18. The movable nut can be returned to the O position, ie the position against the dowel 8, and a new positioning can therefore be carried out in the same manner as described above.

In fact, by sweeping the angle of the 8 levers 18, not only can the corresponding microswitch be controlled to power the electric motor through the manual reversing switch, but also the pinch 1 lateral control connected to the corresponding cage 13 can also be done. can. When the helical spring 15 is opened to release this cage 13, the nut and cage 13 rotate around the threaded rod 5 or 6 and the nut automatically returns to the stopper 8. This return is due to the action of the spring 14, which has been elmed in the previous stroke of the subject nut, and is caused by the sudden lead of the rod 5.6.

Of course, other methods of fixing the angle of the cage 13 and warming it by the action of the operating rod 17 are also conceivable.

It should be noted that the operating rod can also be swept axially instead of angularly controlled as described above.

Furthermore, it goes without saying (the above explanation is merely introduced as an example and is not intended to limit the scope of this invention in any way).
It is not possible to deviate from the above construction details by substituting their ground equivalents.

In color 1, the switch 11 can be operated by the tappet 10 or by an appropriate circuit independently of the cell F.

[Brief explanation of drawings]

1 and 2 are sectional views taken along line 8 showing the device bypass according to the present invention, FIG. 1 is a sectional view taken along line II in FIG. 3, and FIG.
FIG. 3 is a cross-sectional view taken along line ■--■ in FIG. 1. 1 is a drum, 5 and 6 are threaded rods, 7 is a sliding nut, 12 is a switch, 13 is a cage, 14 is a helical spring, 15 is a pinch mechanism, and 17 made by 111 rods.

Claims (4)

[Claims] (1) Movable parts of sunshades, shutters, and other winding equipment A termination device for automatically stopping the winding and unwinding drum (1), in which the two threaded rods (5) and (6) constituting this The two sliding nuts (7) inserted into this are connected to the drum (1) and the angles of the two sliding nuts (7) are maintained and the rods rotate in opposite directions, so once the nuts are properly positioned , the axial movement of which acts on the fixed end (position O) causing actuation of a switch (12) suitable for stopping the drum at one of the desired ends of the travel of the moving part; The action of the spring (14) causes the nut to move onto the threaded rod (
5) A termination device for the automatic control of sunshades, rotary shutters and other rotary drum winding machines, characterized in that it rotates around (6) and returns to a fixed termination for the next adjustment. (2) Each of the threaded rods (5), (6) has a steep lead thread.
Apparatus described in section. (3) Each sliding nut (7) is mounted inside a cage (13) with which it is angularly fixed, and the pinch mechanism (15) is operated via an operating rod (17) accessible from outside the hoist. 3. Device according to claim 1, characterized in that the angle is fixed by ). (4) The pinch mechanism is composed of a helical spring (14), the wire of the spring is wound around the cage (13), one end of the spring is inserted into the actuating rod (17), and the other end is the fixed end (16).
Device according to claim 3, characterized in that it is stopped in a).