JPH03194090A - Winding drum for shutter for building and support device therefor - Google Patents

Abstract

PURPOSE:To facilitate repair of a motor by inserting a motor in a winding drum in a state that a reduction gear is positioned outside, engaging the engaging protrusion part of a bearing member with the end part of the winding drum, and rotatably and separably mounting the motor to the winding drum. CONSTITUTION:A gear 4 is mounted to the end part of a shaft 3 of a motor 2 inserted in a winding drum 1, and is geared with a gear 14a for reduction of a reduction gear 10. The motor 2 is inserted in the winding drum 1 in a state that the reduction gear 10 is positioned outside, and an automatic centering bearing 30 is mounted and a support rod 33 is inserted. Meanwhile, a bearing member 6 is formed in a manner to be insertable in the winding drum 1, and an engaging protrusion part 8 thereof is engaged with an engaging recessed part 9 formed in the end part of the winding drum 1. The motor is rotatably and separably mounted to the winding drum 1 to support the motor 2 at two ends, and a shutter is also installed in an overlapping manner on the outer periphery of a bearing member 6. This constitution facilitates separation of the motor for repair of the motor even in a state that the shutter is wound around the winding drum.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a winding drum for a shutter used by being attached to a window of a house or other openings in a building, and a supporting device for the shutter.

(Prior Art) A winding drum equipped with a built-in motor for a shutter to be attached to a window of a house or other openings of a building is known, for example, as disclosed in Japanese Utility Model Application Publication No. 169694/1983.

This winding drum has a motor fixing body attached to one of a pair of brackets fixed to a building, and a bearing case attached to the other, and an end opposite to the output shaft of the motor is fixed to the motor fixing body. .

One end of the winding drum into which the motor is inserted is rotatably attached to a motor fixed body, and the other end of the winding drum is supported by the bearing case. A coupling to which the output shaft of the motor is non-rotatably connected is fixedly attached within the winding drum.

The rotation of this winding drum is performed via a coupling by the operation of a motor.

In addition, as a support device for the winding drum, for example,
8 13665 is known.

This winding drum support device includes a U-shaped bearing with an open top, a support shaft of the winding drum inserted from above, and a cover separably attached to the upper opening of the bearing.
This prevents the support shaft from deviating from the opening.

To attach the cover to the bearing, insert the locking pieces protruding from the outside of the upper end of the bearing into the locking grooves on the cover, and then slide the cover along the stopper pieces. be.

(Problems to be Solved by the Invention) The conventional winding drum disclosed in the above-mentioned Japanese Utility Model Application Publication No. 169694/1983 has a motor fixed to a motor fixing body that is not attached to a bracket, and a winding drum in which the motor is inserted. The end of the motor is rotatably attached to the motor fixed body, and the output shaft side of the motor is inserted into the winding drum.

Therefore, when the motor or its reduction gear breaks down, it is necessary to separate the entire motor and reduction gear from the winding drum, which poses a problem that the disassembly operation is complicated and requires a lot of effort.

Moreover, the connection position between the motor output shaft and the winding drum is
Since it is quite far from the motor fixed body, there is a problem in that the bending moment applied to this connecting part becomes large, increasing the load on the connecting part, and preventing smooth rotation. In order to prevent this problem, it is necessary to increase the strength of the brackets and the like more than necessary, which also causes the problem of increased costs.

Further, the support device for the winding drum disclosed in the above-mentioned Japanese Patent Publication No. 13665/1980 has a bearing tool with an open upper part.
Since the spindle of the winding drum is inserted from above,
The operation of attaching and detaching the support shaft to and from the bearing is easy. However, since it is necessary to slide the cover by engaging the locking groove of the cover with the locking piece provided at the upper end of the bearing, there is a problem in that the operation of attaching and detaching the cover becomes time consuming.

Furthermore, since the locking piece of the bearing is formed in the horizontal direction, there is a risk that the cover may gradually slide due to vibrations caused by the rotation of the winding drum and become separated from the locking piece of the bearing. Ru.

The present invention solves the above-mentioned problems, and is easy to disassemble in the event that the reducer of the motor inserted in the winding drum breaks down, and the rotational force of the motor is transferred to the winding drum. The object of the present invention is to provide a winding drum that can maintain smooth rotation by reducing the bending moment transmitted to the connecting portion. It is another object of the present invention to provide a support structure for a winding drum that allows easy attachment and detachment of the winding drum and that can reliably prevent the winding drum from slipping off.

(Means for Solving the Problems) In the winding drum of the present invention, a motor without a speed reducer is inserted into the winding drum with the speed reducer outside, and is mounted at an end of the winding drum so that it cannot rotate. The above-mentioned reduction 3 is added to the internal gear where the old 1 was removed.
The drive gear of the output shaft of one machine is meshed, and the reduction 31f is
The winding drum is supported by a support shaft protruding from the outer surface of the case of the lli.

The first support device for the winding drum is provided with a receiving plate at the end of the cylindrical body, and an opening smaller than the inner diameter of the cylindrical body is formed in the cylindrical body, and the receiving plate communicates with this opening. A bearing having a shaft hole formed therein is provided, and a short side is shorter than the opening;
A locking plate formed in a rectangular shape with longer long sides is fixed to a support shaft protruding from the end of the winding drum so as to protrude from both sides in the radial direction. f from the club! It is characterized in that the support shaft is supported by a bearing by slightly rotating it after being inserted into the J body.

The second support device for the winding drum is provided with a bearing in which a part of the shaft hole in the radial direction is an opening, and a ring-shaped receiving member disposed around the bearing. A locking means for preventing movement of the receiving member in the axial direction is provided on the bearing or the receiving member, the support shaft of the winding drum is inserted into the shaft hole from the opening, the receiving member is arranged around the bearing, It is characterized in that the receiving member is locked to the bearing by a locking means, and the receiving member is attached to the bearing in the form of a hook.

(Function) The winding drum has one end thereof supported by a bearing on a support shaft protruding from the outer surface of the case of the reducer, and the other end of the winding drum supports a support shaft attached thereto with a bearing. Then, by activating the motor and rotating the internal gear with the drive gear of the reducer output shaft, the winding drum to which the internal gear is attached is rotated in a desired direction.

Then, insert the motor into the winding drum with the reducer on the outside, mesh the drive gear of the reducer output shaft with the internal gear non-rotatably attached to the winding drum, and support it on the outer surface of the case of the reducer. Since the shaft is protruding, the support position and drive of the support shaft can be adjusted. The distance from the position where the b gear meshes with the internal gear becomes small, and the moment at the position where the drive gear and internal gear mesh becomes small. Therefore, the winding drum can be rotated smoothly.

Next, in the first support device for the winding drum, the bearing is attached to a bracket or the like fixedly protruding from a building with the opening of the cylindrical body facing upward. Then, the stop plate is inserted into the cylindrical body together with the support shaft at the end of the winding drum from the short side thereof through the opening [ ] so that the support shaft is supported by the receiving plate, and when the support shaft rotates, the stop plate is inserted into the cylinder body. Rotate it 90 degrees so that its long side is almost on the opening side of the cylinder. Thereby, when the support shaft moves upward, the locking plate is internally locked in the cylinder, thereby preventing the support shaft from escaping from the opening.

The second support device for the winding drum is such that the bearing is mounted on a bracket or the like fixedly protruding from a building, with the opening of the shaft hole facing upward. Next, the support shaft at the end of the winding drum is moved in the radial direction and inserted into the shaft hole from the opening. Then, the bearing is hooked and a receiving member is placed around the hook, and the receiving member is locked to the bearing by a locking means to prevent the receiving member from separating from the bearing in the axial direction of the shaft hole. It is something. In order to prevent the support shaft from slipping away from the bearing when the support shaft moves upward, the F side of the ring-shaped receiving member comes into contact with the lower surface of the bearing, and the receiving member moves further upward. This is done when one becomes unable to do something.

(Example) Examples of the winding drum and its support device of the present invention will be described with reference to FIGS. 1 to 9.

1 to 9, 1 is a winding drum, 2 is a motor inserted into the winding drum 1, and a gear 4 is provided at the end of a shaft 3 of the motor. The shaft portion 5 of the motor 2
is supported via a bearing 7 by a ring-shaped bearing member 6 attached to the end of the winding drum 1. The bearing member 6 is formed to be insertable into the winding drum 1,
A plurality of engagement protrusions 8 protruding from the outer peripheral surface at intervals are engaged with the same number of engagement recesses 9 provided at the end of the winding drum 1, so that the winding drum 1 is prevented from rotating. (See Figures 3 and 4).

Reference numeral 10 denotes a reducer, a case 11 of which is attached to the shaft portion 5 of the motor 1 with bolts 12, and a cover plate 11 of the case 11.
A support shaft 13 is fixedly and protrusively provided on the outer surface of a, coaxially with the shirt l-3. 14a, 14b, and 14d are deceleration gears provided in the case 11, and the deceleration gear 14
a meshes with the gear 4 of the shaft 3.

Reference numeral 15 denotes an output shaft to which a reduction gear 14d is fixed, an NA gear 16 fixed to this, and a ring-shaped output shaft having teeth on its inner peripheral surface, which is attached to the bearing member 6 with bolts 17.
It meshes with the internal tooth $18 that was removed. 19 is a limit set lever; 20 is a brake cylinder fixed to the other end of the shaft 3;
21 is a mounting member fixed to the side surface of the motor 2, 22a,
Reference numeral 22b is a spink member located on both sides of the play-1rJr 120, the end of which is swingably attached to the attachment member 21, and brake linings 23a and 23b attached to these spink members grip the brake A cylinder 20.

Support rods 24a and 24b are fixed to the free ends of the swing members 22a and 22b and protrude in parallel, and rollers 25a and 25b are attached to these support rods. Reference numeral 26 denotes a spring attached to the support rods 24a and 24b in a suspended manner.
The brake linings 23a and 23b are pressed against the brake body 20 by urging the brake linings 23a and 24b closer to each other, thereby applying a brake to the motor 2 (see FIG. 6).

27 is an actuator disposed between the rollers 25a and 25b, and each surface facing the rollers has a concave mountain-shaped slope; 28 is an actuator for operating the actuator 27;
When current is applied to the solenoid 28 attached to the mounting member 21, the actuator 27
The brake linings 23a, 23b are moved to the brake body 2 via the swing members 22a, 22b, and the rollers 25a, 25b are moved in a direction where they become farther away from each other.
0 and release the brake on motor 2.

Then, when the current to the solenoid 28 is cut off, the actuator 27 moves and the rollers 25a, 2
Since 5b is released, the brake linings 23a, 2
3b is pressed against the brake body 20 to apply a brake to the motor 2.

The current to the solenoid 28 is turned on and off in conjunction with the motor 2.

29 is a bearing support fixed to the solenoid 28, and a self-aligning bearing 30 is attached to this. This self-aligning bearing 30 consists of an outer ring 31a and an inner ring 31b, and the abutment surfaces of these are curved in the axial direction to make the inner ring 31b rotatable, so that the axial center of the inner ring 31b can be adjusted. It is something. Reference numeral 32 denotes a support plate radially attached to the winding drum 1, on which a support rod 33 is fixedly protruded coaxially with the shaft 3 of the motor 2, and this support rod is connected to the automatic adjustment. It is inserted into the center bearing 30 and supports one end of the motor 2.

34 is a bearing (see FIG. 5) that supports the support shaft 13;
In this case, a receiving plate 36 is provided at the end of the cylindrical body 35, and the cylindrical body 35
An opening 37 smaller than the inner diameter of the cylindrical body 35 is formed in the cylindrical body 35, and communicates with the opening 37 to form a shaft hole 3 in the receiving plate 36.
8. And during the above period [1 part 37
A locking plate 39 formed in a rectangular shape with shorter sides and longer sides is fixed to the end of the support shaft 13 so as to protrude from both sides in the radial direction.

40a is a bracket fixed to a building (not shown);
The bearing 34 is fixed to this with the opening 37 facing upward. 41a and 41b are the lids Jfi of the reducer 10;
This is a lock rod that protrudes from the outer surface of the lla.

Reference numeral 42 denotes a support shaft protruding from the end of the winding drum 1 coaxially with the support shaft 13, and a self-aligning bearing 43 having the same structure as the self-aligning bearing 30 is attached to this support shaft. Reference numeral 44 denotes a removal stopper pin that is protruded from the support shaft 42 on the outside of the self-aligning bearing 43.

45 is a bearing (see FIG. 7) that supports the support shaft 42;
This is constructed by closing the end of a main body 41 with a U-shaped cross section and an opening 46 on the upper side with a receiving plate 48, and providing a shaft hole 49 with an open upper side in the receiving plate 48. 47
Locking recesses 50a and 50b as locking means are formed opposite to each other at the upper end of the holder. The bearing 45 is fixed to the bracket 1-40b with the opening 46 positioned above, the support shaft 42 is inserted into the shaft hole 49 from above, and the self-aligning bearing 43 is inserted into the main body 47. Reference numeral 51 denotes a ring-shaped receiving member disposed in the shape of a hook around the bearing 45, the upper part of which is inserted into the locking recesses 50a and 50b. This receiving member 51 is arranged around the support shaft 42 or the bearing 45 before the support shaft 42 is attached to the bearing 45.

Reference numeral 52 denotes a guide rail having a pair of rails facing each other with a concave cross section, and this is fixed to the upper part of the brassiere 1-40a. 53 slides toward a lock plate that is slidably attached to the guide rail 52, fits the lock rod 41a into the locking recess 54 provided at the end, locks the lock rod 41a, and closes the case of the reducer 10. Blaguet 11 l-4
It is fixed at 0a (see Figures 2 and 3).

Then, the guide rail 52 and the lock plays 1 and 53
is also provided on the bracket l-40b, as shown in FIG. This is used when mounting the winding drum 1 so that the support shaft 13 is in the opposite position to that shown in FIG. 1 is suitable for setting the limit set lever position 19, for example.

Therefore, each of the lock rods 41a, 41b is erected at a position suitable for locking the locking recess 54 of each lock plate 53, corresponding to the mounting direction of the winding drum 1. The guide rail 52 and lock plays 1 and 53 relative to the bracket 40b allow the winding drum 1 to be attached at different times and depending on the direction.

This winding drum 1 is constructed as described above, and the motor 2 is attached to the winding drum 1 by itself! Insert the motor 2 into the winding drum 1 from the llI alignment bearing 30 side. Then, the support rod 33 is inserted into the self-aligning bearing 3G, and the engagement protrusion 8 of the bearing member 6 engages with the engagement recess 9 of the winding drum 1, supporting the motor 2 at both ends. In addition, since the self-aligning bearing 30 is attached to the motor 2, the support rod 33 can be inserted therein without difficulty.

Since the bearing member 6 is attached to the winding drum 1 by engaging the engagement protrusion 8 with the engagement recess 9, the shutter can be attached to the outer periphery of the bearing member 6 in an overlapping manner. Even when the shutter is wrapped around the take-up drum 1, the motor 2 can be easily separated for repair or the like.

Note that the winding drum 1 and the bearing member 6 can be connected in any manner such as by using bolts.

The speed reducer mio of the motor 1 attached to the winding drum 1 as described above is arranged outside the winding drum 1, and its driving gear 16 meshes with the internal gear 18 fixed to the bearing member 6. The support of -C of the winding drum 1 is performed by a support shaft 13 that is provided protrudingly from the outer surface of the reduction gear 10. Therefore, the distance between the position where the driving gear 16 and the internal gear 18 mesh with each other and the support shaft 13, and the distance between the bearing member 6
Since the distance between the and the support shaft 13 is small, the bending moment I· on each of these parts is small and the load is small, so each of these parts can be rotated smoothly.

And brackets 40a, 40 attached to the building
The winding drum 1 is supported by a ring-shaped receiving member 51 hooked onto a support shaft 42 protruding from the end of the winding drum 1, as shown in FIG. Bracket)
This is done by inserting the self-aligning bearing 43 together with the support shaft 42 into the bearing 45 attached to the bearing 40b (see Figures 7 and 8). At this time, the inner ring of the self-aligning bearing 43 rotates relative to the outer ring. Since the support shaft 42 and the winding drum 1 can be tilted, the self-aligning bearing 43 and the support shaft 42 can be easily inserted into the bearing 45 without any difficulty.

After inserting the self-aligning bearing 43 into the bearing 45, the receiving member 51 is placed around the bearing 45, and its upper part is inserted into the locking recesses 50a and 50b.
A hook is attached to the support member 51 in the form of a hook to prevent the support shaft 42 from moving upward and deviating from the bearing 45 with the receiving member 51.

The upper part of the receiving member 51 is connected to the locking recess 50a of the bearing 45.
, 50b, it is easy to attach and detach the bearing member 51 from the bearing 45 due to vibration, etc.
There is no risk of separation.

Next, the supporting shaft 13 protruding from the 31111110 was attached to the Blaguet l-40a with its locking plate 39 facing upward F as shown by the chain line in FIG. Insert it into the bearing 34. After inserting the support shaft 13 into the bearing 34,
The speed reducer 10 is rotated about 90 degrees so that the long side of the locking plate 39 faces the opening part 37 of the bearing 34, as shown in FIG. On the other hand, since the lock rod 41a is in a position facing the lock plate 53, as shown in FIG. 2, slide the lock plate 53 and insert the lock rod 41a into the locking recess 54, lock. As a result, when the support shaft 13 moves upward, the locking plate 39
5 prevents the support shaft 13 from deviating from the bearing 34 and reduces speed! Attach motor 2 to bracket t- with a10.
40a, and prevents rotation of the support shaft 13 due to vibration or the like.

Although the cylindrical body 35 of the bearing 34 is cylindrical,
This cylinder 35 can have any cross-sectional shape, such as a square cylinder.

When supporting the winding drum 1 with the speed reducer 10 in the opposite position to that shown in FIG. 1, as shown in FIG.
Attach the bearing 34 by one inch to b, and attach the support shaft 13 and the locking plate 3 to it.
9 and rotate the locking plate 39. and,
The lock rod 41b is locked by sliding the lock play 1/53 and fitting the lock rod 41b into the locking recess 54.

In this way, since the two lock rods 41a and 41b are erected on the outer surface of the reducer @10, by locking either one of the lock rods 41a or 41b depending on the direction in which the winding drum 1 is supported. , limit set lever
position W119 in the direction suitable for operation, and decelerate fi10.
can be easily fixed to either black l-40a or l-40b.

Note that it is also possible to use only one lock rod without providing either of the lock rods 41a and 41b.

FIG. 10 shows another embodiment of the receiving member 51 of the bearing 45. As shown in FIG.

This ring-shaped receiving member 51 has a locking protrusion 56 as a locking means on a part of its inner side,
This locking protrusion 56 is inserted and locked into the upper part of the bearing 45.

FIG. 11 shows another embodiment of the means for fixing the reduction gear a10 to the black J-40a.

In this embodiment, the reducer 10 and the bracket 40a have a concave cross-section that is attached to the reducer 10 and the bracket 40a so that they can face each other when a support shaft (not shown) protruding from the reducer iio is supported by a bearing (not shown). A connecting body 58 is separably inserted across both holding members 57a and 57b. The holding members 57a, 57b are configured to be able to hold the inserted connecting body 58 by opening the upper side and closing the lower side. That is, it is possible to do this by any means, such as fixing the deceleration 6110 to the black l-40a.

(Effects of the Invention) As described above, in the winding drum of the present invention, when the motor is inserted into the winding drum, the internal gear fixedly attached to the end of the winding drum is positioned outside the winding drum. The speed reducer M! I
The I-gear is engaged with the reducer, and a support shaft is provided protruding from the outer surface of the reduction gear, and one end of the winding drum is supported by this support shaft.

In this way, since the reducer is located outside the winding drum, for example, in the event that a failure occurs in the reducer, the effort required to disassemble it is reduced, and it is possible to deal with problems such as motor failure. is also easy. In addition, since the support shaft is provided protruding from the reducer, the distance between the connection position, such as the meshing position of the internal gear and the 3 mm drive gear, and the support position of the support shaft becomes small, so that the connection position This reduces the bending moment for the shaft, making it possible to maintain a smooth rotational state. Furthermore, since the load on the brackets and the like that support the support shaft is reduced, it is not necessary to increase the strength of the brackets or the like more than necessary, which can also contribute to cost reduction.

The support device for the winding drum according to claim (2), as described above, has a rectangular locking plate fixed to the support shaft protruding from the end of the winding drum. Insert the locking plate along with the support shaft from its short side into the bearing through the opening provided in the cylindrical body of the shaft body, rotate the locking plate slightly, and insert the long side of the locking plate into the opening. When the support shaft moves upward, the locking plate is engaged inside the cylindrical body to prevent the support shaft from deviating from the bearing.

Therefore, it is easy to attach the support shaft to the bearing, and it is possible to reliably prevent the support shaft from deviating from the bearing.

Further, in the winding drum support device of claim (3), as described above, the supporting shaft protruding from the end of the winding drum is inserted from above into a bearing having an opening at the top; In addition, a ring-shaped receiving member is arranged around the bearing, and the ring-shaped receiving member is attached to the bearing using a locking means in a hook shape. When it moves, a part of it comes into contact with the bearing, so it cannot move any further.

Therefore, when the support shaft within the bearing moves upward, the receiving member can reliably prevent it from deviating from the bearing. Moreover, since the receiving member is arranged around the bearing and attached to the bearing in a retractable manner using a locking means, the mounting of the receiving member is easy, and it is possible to avoid vibrations caused by rotation of the winding drum, etc. Even if this occurs, the receiving member will not separate from the bearing due to this vibration, and deviation of the support shaft can be more reliably prevented.

[Brief explanation of drawings]

Factors 1 to 9 show examples of the present invention; FIG. 1 is a sectional view of the winding drum supported by a bracket, FIG. 2 is a right side view,
Fig. 3 is a top view of the reducer section, Fig. 4 is an exploded perspective view of the winding drum and bearing member, Fig. 5 is an enlarged perspective view of the bearing, Fig. 6 is an enlarged side view of the brake section, Fig. 7 The figure is an exploded perspective view of the bearing part, Figure 8 is a side view of Figure 7, Figure 9 is a side view of the main part when the support direction of the winding drum is reversed, and Figure 10 is another implementation of the receiving member. An example perspective view, FIG. 11, is a plan view of another embodiment of the means for securing the reduction 3111 to the bracket. 1-winding drum, 2; motor, IG::I! Quadruple machine, 1
6 drive gear, 18: internal gear, 34 two bearings, 35: cylindrical body,
36: receiving plate, 37 two openings, 38: shaft hole, 39: locking plate, 42: supporting shaft, 45: bearing, 50a, 50b: locking recess, 51: receiving member.

Claims (3)

[Claims] (1) A motor equipped with a speed reducer is inserted into the winding drum with the speed reducer outside, and drives the speed reducer output shaft through an internal gear non-rotatably attached to the end of the winding drum. A winding drum for a building shutter, in which gears are engaged and the winding drum is supported by a support shaft protruding from the outer surface of a case of the speed reducer. (2) A receiving plate is provided at the end of the cylindrical body, an opening smaller than the inner diameter of the cylindrical body is formed in the cylindrical body, and a bearing is provided with a shaft hole in the receiving plate communicating with this opening. A locking plate formed in a rectangular shape with shorter sides shorter than the opening and longer sides than the opening is attached to a support shaft protruding from the end of the winding drum in the radial direction. A winding drum support device for a building shutter, which is fixed to protrude from both sides and rotates slightly after the locking plate is inserted into the cylindrical body from the opening to support the support shaft with a bearing. (3) A bearing having a radial part of the shaft hole as an opening and a ring-shaped receiving member disposed around the bearing are provided, and the receiving member is not allowed to move in the axial direction of the shaft hole. A locking means for blocking is provided on the bearing or the receiving member, the support shaft of the winding drum is inserted into the shaft hole from the opening, the receiving member is arranged around the bearing, and the receiving member is secured to the bearing by the locking means. A winding drum support device for a building shutter that is locked to a bearing member and hook-likely attaches a receiving member to a bearing.