JPS6047191A - Screen wind-up apparatus - 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 (a) Technical Field of the Invention The present invention relates to various types of screens, such as curtains, blinds, lightweight shutters, tents, and projection screens, which are rolled up and stored, or rewound and unfolded for use. This invention relates to a winding device.

(B) Background of the Invention Normally, this type of screen winding device drives a winding shaft that winds up the screen by a motor via a speed reduction mechanism, and the winding or unfolded screen is thereby driven by a motor via a speed reduction mechanism. An electromagnetic brake is used to fix the screen at its stop position, and this brake action is linked to the rotation stop operation of the motor to fix the screen.This prevents the screen from slipping or falling due to its own weight. There is.

However, in this J: Eel screen winding device, it is necessary to install an electromagnetic brake in addition to the motor and its deceleration mechanism, which not only increases the size of the entire device equipped with these, but also increases the size of the device. This has the problem of increasing the number of components, such as requiring a connection circuit to turn on the electromagnetic brake in conjunction with when the motor is turned off.

(c) Purpose of the Invention Therefore, an object of the present invention is to provide a screen winding device that can stop the screen without requiring an electromagnetic brake.

(D) Summary of the Invention This invention is based on the fact that the winding motor and its speed reduction mechanism are housed in the internal space of the winding shaft, thereby reducing the size of the end of the winding shaft, and the stopping position of the winding shaft when the screen is raised and lowered. 1- It is a screen winding device that can automatically lock the screen.

(E) Effects of the Invention According to the present invention, drive mechanisms such as a forward/reverse motor and a planetary gear reduction mechanism are installed inside the hollow interior of the winding shaft formed in a cylindrical body via a support shaft. Therefore, there is no need for a drive mechanism on the outside of the end of the winding shaft, and the winding shaft can be extended by that amount, making it possible to sufficiently extend the winding width compared to the current winding device. It can be used for a long time, and the entire installation space can be used efficiently.

In addition, the support shaft supports the drive mechanism and is hollow for the motor wiring to pass through, so when installing the forward/reverse motor inside the winding shaft, it is necessary to It can be easily wired externally and installed at any arbitrary position inside the winding shaft without interfering with the deceleration mechanism, etc.

In addition, this screen winding device is equipped with a self-locking section, which locks the rotation of the winding shaft at the same time as stopping the output of the motor, thereby changing the screen winding and unfolding positions. Can be fixed automatically. In addition, for the reduction mechanism that reduces the output of the motor, the small Takayama model is 1
Since the planetary gear reduction mechanism shown in FIG.

(f) Examples of the invention An embodiment of this invention will be described below based on the drawings.

The drawing shows an example of a screen winding device and a screen winding device for a roll blind which provides sun protection.In FIG. A winding shaft 2 equipped with a winding shaft (outside), its drive section 3, a reduction mechanism section 4, etc., and a first self-locking section 5.
, a second self-handling section 6, a manual winding section 7, and a blind positioning section 8.

The above-mentioned winding shaft 2 is formed into a cylindrical body, and a drive 1 415 for driving and controlling the winding shaft 2 is installed inside the hollow interior, and the shaft 2 is connected to a wall surface at both ends. They are each provided with mounting members 9 and 10 for mounting to.

The member 9 is attached to the end plate 11 fitted in the open end of the winding shaft 2 via a bearing 12 in order to cut off conduction from the winding shaft 2. A pin 13 is attached.The pin 13 is protruded from the outer end or the end face of the winding shaft 2, and the rotation stopper 14 formed on this protrusion is attached to a fixing member on the wall. (not shown).

In addition, in this attachment, the position of the inner end of the pin 13 is regulated by a receiving member 16 with a steel ball 15 interposed therebetween.

On the other hand, the other side (the right end side in the figure) is attached (the pull member 10 is connected to the front end of the winding shaft 2 via a bearing 17 to block conduction from the winding shaft 2). One side is fitted inside, and the other side is fitted and fixed to the outside of a fixing case 19 with a square cross section. outside)
It is fixedly supported and removed.

On the other hand, the outer end of a support @ 21 formed in an elongated cylinder is fitted and fixed in the middle heat section of the inner end surface of the fixed case 19, and is secured by a fixing pin 20a, and the inner end of the support @21 is fixed. Take shaft 2
The winding shaft 2 is inserted into the inner circumferential surface of the winding shaft 2 and is pivotally supported by a bearing (pull 23) via a support ring 22. Each drive mechanism for the take-up shaft 2, which will be described later, is provided.

The aforementioned drive unit 3 is, for example, an outer rotor type positive drive unit.
It is composed of a reversing motor 24, and this forward/reverse motor 2
4 is a rotor 2 in which an outer rotor 26 rotates around the outer periphery of a stator 25 fixed on a shaft at an inner end of a support shaft 21.
Both ends of G are pivotally supported on support @21 via bearings 27 and 27.

Furthermore, a J-driver C of this motor is screwed to the inner end of the support shaft 21. A lead wire 28 for motor wiring is connected to the hollow interior of the support shaft 21, which is inserted through the outer end side J of the shaft 21 to the inner motor position and condenser position. Motor 24 is ON,
Controlled OFF.

As a result, the outer rotor 26 is rotated and stopped, and the output of the outer rotor 26 is transmitted to the reduction gear 1 414 section, which will be described later, and the winding shaft 2 is rotated.

The above-mentioned speed reduction mechanism section 4 has the first to
Fourth stage planetary gear reduction mechanism 29, 30. .

31 and '32 are arranged consecutively on the support shaft 21, and the two in the first stage are the outer rotor 26 described above.
The first Zankiya 33 is integrally connected to the outer end side of the
And the first planetary gear 34 that meshes with this...
1st to 3rd stage planetary gears 34.35.36.
A first internal gear 37 that meshes with the first internal gear 37,
A first carrier 38 transmits the revolution output of the first planetary gears 1 to 34 to the second stage 30.

The first gear 38 has three shafts protruding from the outer end of the first carrier 38 for connecting the second sun gear. In this way, the second to fourth "Q I" M W
The motor output is transmitted to the fourth stage 32 in the tooth 11 reduction 1f121ffllfG30.31, 32c, 1i',;4' configuration, and is decelerated to a predetermined rotational force in the fourth stage 32. , the winding shaft 2 is rotated at a constant speed.

In this case, in the fourth stage 32, the peripheral surface of the shaft end of the fourth stage 39 is formed into a hexagonal shape, and is fitted and fixed to the fifth stage 7 rear of the second self-adhesive section, which will be described later, to prevent rotation. .

Therefore, the fourth planetary gear 40 is in a state where only rotation is allowed, and the second internal gear 41 corresponding to the eleventh stage 1132 is rotated, and based on the rotation of this gear 1F41, the winding unit is integrated with the gear 4r41. Axis 2 is rotated. Note that the first internal gear 31 (E) is integrally attached to the inner circumferential direction of the winding shaft 2.

The first 'l' mentioned above? The roof lock part 5 is designed as a locking means for locking the blind in the rolled up position and the unfolded position, and is a self-locking mechanism that automatically locks in response to load from the load side. It has a locking function, and as shown in FIGS. 2 and 3, for example, a protrusion 42 is provided on the outer peripheral surface of the second internal gear 41, and a fixed ring that holds this gear 41 is provided. 43 is formed with a recess 44 into which the protrusion 42 is fitted, and the second internal gear 1141 is allowed to rotate within a minute range where the protrusion 42 is regulated by the four parts 44, and corresponds to the load of the blind. 2nd internal gear 4
The self-locking function is automatically performed by the reaction force of 1.

The above-mentioned second internal gear 41 and three fourth gears are located at positions facing each other on the side surfaces, and a ratchet 1 gear 45 is carved on the outer peripheral surface of the three fourth gear rears, and this ratchet 1 gear 45 is engaged with a pair of ratchet pawls 46.4.7 which engage from the forward and reverse directions, respectively.

The above-mentioned mouthpiece: ~The proximal end of the claw 46.47 has a shaft 48.
48 is integrally formed, and this f* 48.

48 is supported by a fixed ring 43, and a plate spring 49 supported by this fixed ring 43 is used to connect both ratchets 1 to pawls 46.
．． 47 is biased in the meshing direction.

The above-mentioned radiets 1 to claws 46. ! The width of the meshing portion 17 is set so as to exceed the width of the gears 1 to 1745 and enter the notch 5o of the second internal gear 41, and the second internal gear on the left and right sides of the notch 5o Release cams 51' and 52 are formed in the portion 41, and these release cams 51, 52 operate the radii from 1 to 16 in response to the forward and reverse outputs of 21!I. The engagement, disengagement, and removal of 47 are performed with the protrusion /12 of the second internal key 117'11 (!
! The operation is performed within the minute rotation range regulated by the first part 44.

It should be noted that the second internal gear 41 rotates in the opposite direction to the forward and reverse directions of the motor 24 via the fourth planetary 4゛t·/10.

Figure 2 G: 1. Allow rotation of yl removal shaft 2! , shows the state of second lock A), which is a forward/reverse rotation, and -92/I rotates forward and rotates in the time 31 direction, which causes the second internal gear 41 to rotate in the counterclockwise cutting direction, and this The integrated winding shaft 2 rotates counterclockwise to move the blind to a predetermined position 1.
Expand to N. At this point, the release cam surface 52 presses the lower surface of the ratchet pawl 47 against the spring 49, and the second interface The null gear 41 is allowed to rotate in the counterclockwise direction. Since the ratchet pawl 46 on the other side revolves around the ratchet pawl 45 of the fixed fourth carrier 39, there is no problem with the rotation.

FIG. 3 shows a lock-on state in which the rotation of the winding shaft 2 is restricted. This is a lock-on state in which when the blind is wound up or unfolded at a predetermined position, the blind is locked to stop at that position. When the rotation of the motor 24 is stopped, the rotation of the winding shaft 2 is stopped. This moment,
A counterclockwise rotational force acts on the winding shaft 2 due to the blind's own weight, and this rotation causes the concave portion 44 of the fixed ring 43 to rotate within the minute range where it is stopped by the protrusion/12. As the release cam surface 52 moves away from the lower surface of the ratchet pawl 47, the ratchet pawl 47 receives the force of the leaf spring 49.1. It engages with the ratchet pawl 1745 and naturally rotates the winding shaft 2 counterclockwise by 1".

As a result, the blind is automatically hill-locked at each stop position, such as the winding position and the unfolding position, based on the rotation stop operation of the motor.

In the case of motor reversal, the rotation of the second internal pin 41 causes the release cam surface 51 to release the engagement of the ratchet pawl 46, so that the second internal pin 41 is allowed to rotate in reverse. As a result, at the beginning of the drive of the shutter 24, the ratchet pawls 46 and 47, which correspond to the forward and reverse rotation of the motor output, are disengaged, the first self-locking portion 5 is in the released state, and the winding shaft 27 is disengaged. is rotated to wind up the blind.

Note that 53 and 53 are stoppers for the ratchet pawl, and 54 is a cover for the ratchet pawl portion (attached to the fixed ring 43).

The first self-locking section 5 configured in this manner transmits the prongs from the motor 24 side to the winding shaft 2, and transmits the horn from the motor 24 side to the winding shaft 2.
Lock the output from the side.

The above-mentioned second self-locking section 6 serves to transmit the output from the manual winding boob (to be described later) to the winding shaft 2 and to lock the output from the winding shaft 2 side. During the winding operation, the rotation of the fifth gear rear 55 that fixes the fourth carrier 39 described above is locked to allow rotation of the winding shaft 2, and at the same time, conduction to the manual winding pulley is prevented. On the other hand, during manual winding operation, the lock is released and the fifth
The carrier 55 is allowed to rotate, and the winding shaft 2 is rotated based on this rotation.

This locking mechanism is connected to the outer side of the first self-locking part 5 with a bearing 56 in between.
The fifth planetary gear 57 corresponds to the aforementioned fourth planetary gear 174.0, the third internal gear 58 corresponds to the second internal gear 1-41, and the fourth carrier 39 corresponds to the fifth planetary gear 57. 5 carrier 55 corresponds to the fixed ring 43, and the inner end of the connection If118 corresponds to the fixed ring 43 and has a similar locking effect, so a description thereof will be omitted.

The above-mentioned manual winding section 7 is, for example, a manual winding pulley 5.
9 is rotatably disposed on the outer end of the support shaft 21 and is rotated from the outside, and a rope for rotating the pulley 59 is provided on the outer peripheral surface of the pulley 59. 60
Gaka(Purure, Tori(=J(Pu part JjA 10 bottom surface J:
-C is installed vertically below. Furthermore, a hollow shaft for transmission that extends long on the support shaft 21 is protruded from the center of the inner end side of the pulley 59, and a fifth Zangi t for manual use is provided on the circumferential surface of the inner end of the hollow shaft. - is provided, and meshes with the fifth planetary gear l-57 of the second self-locking portion 6 of the front).

The manual winding section 7 configured in this way has a pulley 59.
1 of the second self-locking section 6 during manual operation via the
Remove Kotoku, and this will cause the 5th::I:1r rear 5
The fourth carrier 39, which is integral with the winding mechanism 5, is rotated, and based on this, all the gears of the deceleration mechanism section 4 are rotated, and the winding shaft 2 is accordingly rotated. A1, even if the winding shaft 2 is rotated based on the output from the motor side located on the opposite side, the second +? (2) Both keys 11 rear 39.
Since LC 55 is fixed, the motor output is not transmitted to the manual winding section 7 side.

The aforementioned blind positioning mechanism section 8 is for positioning the set positions of the winding set position when the blind is rolled up and stored, and the unfolded set position when the blind is rewound and unfolded. The operation is a combination of a planetary gear mechanism tM 61 for positioning the winding, which positions the winding shaft 2 in accordance with the amount of rotation thereof, a planetary gear mechanism 62 for positioning the deployment, and limit switches 63 and 64 corresponding to these. Composed of garlic.

Above) The planetary gear Ia mechanism 61 for positioning the flea winding includes a fourth internal gear 65 that is integrally fitted into the outer end opening of the winding shaft 2, as shown in FIGS. 4 to 6. A large diameter gear of a binion 66 having different diameter gears of different sizes meshes with the small diameter gear, and sixth and seventh ring gears 67 and 68 are arranged on both sides of the small diameter gear, and the sixth sun gear 67 side is on the winding side, and The sixth sun gear 67 side is provided for positioning on the winding side, and the seventh sun gear 1768 side is provided for positioning on the deployment side.

The above-mentioned sixth sun gear 67 has a small diameter shaft 69 protruding and recessed in the center of its outer end surface, and a sun gear is formed on the outer end surface of the small diameter shaft 69. Moreover, a sixth gear 17 rear 71 holding the shaft of a sixth planetary gear 70 that meshes with the sun gear is loosely fitted onto this small diameter shaft 69, and this sixth carrier 71 is connected to the rear) by a clutch mechanism. Rotation is restricted. The 5th internal -1゛1.72 corresponds to the C1 6th brane gear +770, and this gear 1772
has a small-diameter gear 11 shaft protruding from the center of the outer end surface with a zigzag X, and a seventh planetary gear 73 is mounted on this gear shaft.
The eighth planetary gear Al is equally distributed and connected to this.
have their shafts held (revolving) by the seventh carrier 75. The sixth internal gear 1776 corresponds to the seventh planetary gear 1773, and the eighth planetary gear A77 corresponds to the seventh planetary gear 1773.
A fin internal gear 77 corresponds to each of the gears 4 and 4 independently.

And these 5th to 5th Finternal Gith 72.76
, '77, a switch 63 is installed on the winding-side limit 1, and these gates are formed with the same diameter on the outer circumferential surface, and with different rotation ratios of Z. Engagement grooves 78 are provided in the axial direction at one location in the circumferential direction.
... will be engraved. And these gears 72, 76.7
When the engagement grooves 78 of No. 7 align with the - straight line, the actuator 79 of the limit switch 63 engages and turns OFF.
The motor 24 is activated and the rotation of the motor 24 is stopped to fix the winding position.

d) The above-mentioned winding-side limit switch 63 is set to the ON state when it is not operated, and is set to be OFF when the winding position is reached.

Next, when making fine adjustments to the winding position of the blind, use the fifth to fifth internal gears 72, 76.
This is done by a clutch mechanism 80 that allows or restricts the rotation of the worm gear 77, and this clutch mechanism 80 performs an engagement operation with a gear carved on the circumference of the worm gear [781, etc. The inner end of the worm gear 81 is rotatably supported by a pivot pin 82 that is appropriately supported inside the mounting member 10. The sixth carrier 7 is moved by moving the moving shaft 83 up and down using the pivot pin 82 as a fulcrum from the outside through the frontage window 84 of the opening member 10.
Engagement and release operations for 1 are performed. A winding setting switch 85 is disposed at the upper position of the rotating shaft 83, and the motor 24 is driven for fine adjustment via this switch 85. (13, Each of these switches is attached to the support shaft 21
It is connected to the motor 24 via a lead wire inserted therein. Further, the rotation shaft 83 is biased by a spring 86 in the direction of meshing with the sixth carrier 71 at the time.

When adjusting the setting position of the J: take-up side limit switch 63 in the clutch mechanism 8o configured in this way, normally the A-mgya 81 meshes with the sixth kit rear 71 and the sixth carrier 71 is regulated, thereby allowing the rotation of the fifth to fifth finter torques, and the winding-side limit switch 63 is in an operable state.

When adjusting the fine M1 from this state, first, the rotation axis 83
is pushed to one side by 1 to allow rotation of the sixth key 17 rear 71, and accordingly the winding setting switch 85 is turned ON to drive the rt-tor 24 and rotate the winding shaft 12. Zazeru.

When the predetermined winding position is reached, the rotating shaft 83
Move down to return to the original engagement position, and press this setting switch 8.
5 is turned OFF, the rotation of the motor 24 is stopped and the desired setting position can be adjusted immediately.

In this case, it is possible to reset the A-wheat v81 in the disengaged state, that is, the so-called cellar 1 condition in which the engagement grooves 78 are aligned, and the setting operation can be easily performed.

Also, by rotating the A-mgya 81 from the outside, the fifth to fifth internal gears 72, 76, 77
You can easily make fine adjustments to the setting position by rotating the .

1) The structural members connected to the 71st non-gear 6su group mentioned in 0 above are arranged in exactly the same way as the structural members after the 64th gear 67 mentioned above, and the winding side limit switch Deployment side limit 1 to switch 64 instead of 63
In addition, a deployment setting switch 87 is installed in place of the winding setting switch 85, and a deployment positioning operation and deployment positioning mechanism based on similar components can be obtained, so a description thereof will be omitted. do.

In FIG. 7, the forward/reverse motor 241JI is driven in the forward/reverse direction by switching the forward/reverse changeover switch 88, and this switch 88 is at the neutral position. Setting switch 85, deployment side limit 1 to switch 64, and deployment setting switch 8
7 is connected in parallel between the changeover switch 88 and the E-motor 24 on each of the forward and reverse lines of the motor 24.

The roll blind winding device configured in this manner has remoter outputs of the first to 43rd Vj and the star gear reduction mechanism 29 to 3 for normal rotation or reverse rotation of the forward/reverse rotation motor 24.
2 to a predetermined rotational speed, and the rotational force is transmitted to the winding shaft 2, which winds up or unfolds the blind at a predetermined rotational speed and reaches a predetermined setting position. Then, (r/positioning means structure 8 operates and motor 24
The rotation of the blind is stopped, the position is automatically fixed in the winding or unfolding position of the blind, and the raising and lowering operation of the blind is completed.

When manual operation is required, pull the lobe 60 to rotate the pulley 59 in the forward or reverse direction. Use by winding or unfolding.

In the above-mentioned embodiment, a worm gear is used for the clutch mechanism used at the time of resetting positioning, but the worm gear is not limited to this, and a loose member may also be used. The 6th gear gear V70 and the 6th gear 71 may be configured to have opposite roles, and may be provided in any number of desired clutches 1 as needed. In addition, for winding φll+ 2, if the winding width of the screen is long or the winding amount is large, a reinforcing winding vibrator is fitted and fixed on the winding shaft as appropriate depending on the required strength. .

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional front view of the main part showing a roll blind winding device. Figures 2 and 3 are enlarged vertical side views of essential parts showing the self-locking structure. Figure 41. tI equipment positioning machine]? Fig. 11 is an enlarged longitudinal sectional front view of the mounting section showing part 11; FIG. 5 it5 and FIG. 6 are longitudinal enlarged side views of the main parts thereof. FIG. 7 is a control circuit diagram of the motor. 1... Roll blind winding device 2... Winding shaft 3... Drive section 4... Deceleration (geometrical section 5.6... Self-locking section 7... Manual winding section 8 ...Blind positioning mechanism part 2'1...Support shaft 24...Forward/reverse motor 29~
32...Planetary gear reducer 48 59...Manual take-up pulley Fig. 2 Fig. 3 Fig. 4 Fig. 5 0

Claims (1)

[Claims] 1. Fix the outer end of a hollow support shaft for passing the motor wiring, insert the inner end through the opening at one end of the winding shaft of the screen provided in the cylindrical body, and place it on this support shaft. , a forward/reverse motor is installed from the inner end, a planetary gear reduction mechanism that decelerates the motor output, and a self-locking part that transmits the output from the motor side and locks the output from the winding shaft side. A screen winding device characterized in that a winding shaft is driven by an output of the self-locking section.