JP3515626B2 - Curtain rail driven by linear motor - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a curtain rail which opens and closes a curtain by driving a linear motor.

[0002]

2. Description of the Related Art Curtain rails incorporating a moving coil type linear motor for opening and closing a curtain are known. In such a curtain rail, a permanent magnet piece is mounted along the longitudinal direction inside the rail, a movable coil is slidably fitted in the curtain rail, and the relative position between the magnetic pole and the coil is detected. By selecting a coil through which an electric current is applied, a unidirectional thrust force is applied to the movable coil, whereby the curtain support connected to the movable coil is moved to open and close the curtain.

By the way, the curtain rail is generally manufactured by extrusion molding to have a uniform cross section, and in order to incorporate the permanent magnet piece therein, the permanent magnet piece is pushed in and slid in sequence from one longitudinal end of the curtain rail. . According to this method, although it is good in the case of a straight curtain rail, if the curtain rail is curved and its curvature is large, it is difficult to insert because the permanent magnet piece is caught in the curved portion, and therefore, It was difficult to bend the curtain rail to have a radius of curvature of 300 mm or less. Further, in the curved curtain rail, the runner moving in the longitudinal direction is easily caught at the curved portion, and from this point also, the curvature of the curtain rail could not be increased so much.

Further, a first rail having a sideways opening having a substantially U-shaped cross section, a second rail fixed to the first rail so as to close the sideward opening, and a first rail Of the permanent magnets arranged on the inner surface of the bottom wall of the rail, the printed circuit board mounted on the inner surface of the top wall of the first rail, and movably fitted in the first rail along the longitudinal direction. A linear motor driven curtain rail having a movable coil has been proposed as Japanese Utility Model Publication No. 6-47343.

In this structure, the rail main body is disassembled into a first rail and a second rail to form an opening on the side of the first rail, but the permanent magnet piece, the printed circuit board and the movable coil are formed. Since it is not possible to divide the member in a direction that intersects with the assembling direction, that is, in the vertical direction, these permanent magnet pieces, the printed circuit board and the movable coil must be inserted into the first rail through the narrow side opening. ,
Work efficiency is poor. Further, if the above-mentioned members are inserted from one end in the longitudinal direction, the same drawbacks as the conventional one cannot be avoided, and the movement of the runner in the curved portion cannot be made smooth, so that the radius of curvature is also made small. It cannot be done.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to allow a permanent magnet to be easily incorporated inside a rail even if it is curved with a large curvature, so that the window to be mounted is relaxed in the limitation of the degree of curvature. To provide a linear motor-driven curtain rail with increased variety in shape and design. A second object of the present invention is to allow the movable coil to move smoothly in the curved portion, thereby eliminating the limitation on the curvature of the curved portion.

[0007]

Means for Solving the Problems] linear motor driven curtain rail of the present invention, in order to achieve the above Symbol purpose has a curved portion at least a part of the length, divided into two section in the width direction The first side member is formed by assembling the one side member and the other side member, and is provided on the lower surface of one end of the one side member in the width direction.
Commutator on the inner surface of the side piece is mounted in the other side
An upper support member attached to the one side member,
It comprises a lower support member joined to an upper support member.
The upper support member is below the other end of the other side member in the width direction.
The upper part of the second side piece provided on the surface,
The holding member constitutes a lower portion of the second side piece, and the second side piece
On the inner surface of the piece, protruding from the inner surface of the side portion of the upper support member.
Projected on the inner surface of the side of the upper support piece and the lower support member
A magnet supporting groove is formed between the lower protruding piece and
A band-shaped permanent magnet is mounted in the magnet supporting groove, a gap is formed along the longitudinal direction between the lower end of the one side member and the lower end of the other side member, and electricity is supplied through the commutator,
A movable coil that forms a linear motor together with the permanent magnet is slidably fitted in a guide space between the commutator and the permanent magnet, and the lower end of the movable coil is exposed through the gap.

In order to achieve the second object, the widths of the guide space and the gap in the curved portion are formed slightly wider than the widths of the guide space and the gap in the straight portion.

The one side member has a first upper surface piece protruding from the upper end of the first side piece to the other end side in the width direction, and
A hanging piece is formed on the tip lower surface of the upper surface piece, and the other side member has a second upper surface piece slidably overlapped and joined to the first upper surface piece in the width direction, and the other side member has a circumferential direction of the curved portion. A spacer may be interposed between the hanging piece and the second side piece at an appropriate position so that the width of the guide space and the gap in the curved portion is slightly wider than the width of the guide space and the gap in the straight portion.

[0010]

[0011]

After the commutator and the permanent magnet are mounted on the one side member and the other side member which are divided in the direction crossing the inserting direction of the commutator and the permanent magnet, that is, the width direction, the one side member and the other side member are mounted. Assemble with. By joining the one side member and the other side member such that the width of the guide space and the gap of the curved portion is wider than the width of the guide space and the gap of the straight portion, the moving coil moves smoothly in the curved portion. .

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings. As shown in FIGS. 1 and 5, the curtain rail 1 is configured by assembling a one-side member 2 and another-side member 3 which are partially curved in the longitudinal direction and divide the cross section into two in the width direction. It In the guide space 4 formed between the one-side member 2 and the other-side member 3, as shown in FIG. 1, a movable coil 5 having a plurality of coils, which are components on the primary side of the linear motor, is longitudinally arranged. It is fitted slidably along.

The one-side member 2 is a member arranged along the longitudinal direction on the inner corner side of the curtain rail 1, and is made of an aluminum alloy, and constitutes the upper surface of the curtain rail 1 as shown in FIG. The first side piece 8 hangs on the lower surface at one end in the width direction of the upper surface piece 7 of 1 to form a substantially L-shaped cross section.
In addition, a fixing hole 9 is formed near the other end of the first upper surface piece 7, and the tip of the fixing hole 9 is bent downward to form a hanging piece 10, and a screw inserting hole 30 is formed in the hanging piece 10. There is.
On the upper surface near the one end of the first upper surface piece 7, a locking recess 11 for engaging the other side member 3 is provided along the longitudinal direction.

Further, an insertion groove 12 is formed on the inner surface of the first side piece 8 so that the width of the opening is narrower and shallower than the width of the inner part, and as shown in FIG. The commutator 13 of is inserted. The commutator 13 is formed by providing printed wiring on a flexible substrate, and supplies a current to each coil according to the position of the movable coil 5 in the longitudinal direction of the curtain rail 1. The commutator 13, as shown in FIG.
Is connected to the control device via a conductor wire 17 penetrating a cap 16 attached to the longitudinal end of the.

Further, on the outer surface of the first side piece 8, there is provided a guide groove 14 having a width of the opening portion narrower than the width of the inner portion thereof. As shown in FIG. The tool 15 is slidably fitted along the longitudinal direction of the curtain rail 1.

The other side member 3 is a member arranged along the longitudinal direction on the outer corner side of the curtain rail 1, and is made of an aluminum alloy, and as shown in FIGS. 3 and 4, the upper supporting member 18 and the lower supporting member 18 are provided. And a support member 19.

The upper support member 18, as shown in FIG.
The second upper surface piece 20 is overlapped with the first upper surface piece 7 of the one side member 2, and the fixing hole 9 of the one side member 2 is provided in the second upper surface piece 20.
A fixing hole 9a corresponding to is formed. Second top piece 20
On the lower surface of the other side in the width direction of the second side piece 21 provided on the other side in the width direction of the curtain rail 1 so as to face the first side piece 8.
An upper side piece 22 that forms the upper part (see FIG. 1) is formed. A screw insertion hole 30a corresponding to the screw insertion hole 30 of the one side member 2 is formed in the upper side piece 22, and an upper projecting piece 23 is projectingly provided on the inner surface near the lower end of the upper side piece 22. A protrusion 24 is formed on the lower surface.

The lower support member 19, as shown in FIG.
A lower side piece 33 that constitutes a lower portion of the second side piece 21;
The lower side piece 33 is an inner piece 26 that is shorter than the outer piece 25 that is overlapped with the outer surface of the upper side piece 22 of the upper support member 18 and the outer piece 25 that is provided in parallel with the inner surface side of the outer side piece 25 with a slight gap. Consists of

Further, a concave groove 27 for inserting the lower end of the upper side piece 22 of the upper support member 18 is formed between the upper ends of the outer piece 25 and the inner piece 26, and the screw of the one side member 2 is formed at the upper end portion of the outer piece 25. Insert hole 30 and screw insert hole 30 of upper support member 18
A screw insertion hole 30b corresponding to a is formed. The screw insertion holes 30, 30a, 30b are formed at both ends in the longitudinal direction of the curved portion and an intermediate portion thereof in order to mount a spacer 32 (see FIG. 5) described later. Further, a lower projecting piece 28 is provided so as to project from the lower ends of the outer piece 25 and the inner piece 26 to the inner surface side, and a projection 24 ′ is formed on the upper surface of the tip of the lower projecting piece 28.

Then, as shown in FIGS. 6 and 7, the lower end of the upper side piece 22 is inserted into the concave groove 27 to insert the lower support member 1 into the groove 27.
9 and the upper support member 18 are assembled, the second side piece 2
A magnet support groove 29 is formed between the upper protruding piece 23 and the lower protruding piece 28 on the inner surface of 1. As shown in FIG. 1, a permanent magnet 31 made of a strip of rubber, which is a component on the secondary side of the linear motor, is fitted into the magnet support groove 29 over substantially the entire length in the longitudinal direction. Since the magnet support groove 29 is provided with the protrusions 24 and 24 ′ at its tip end, the width of the inner part is wider than the width of the opening part.
1 never escapes.

The curtain rail 1 is assembled as follows. The commutator 13 is mounted in the insertion groove 12 of the one-side member 2 in advance, and the second upper surface piece of the upper support member 18 is inserted into the locking recess 11 of the one-side member 2 as shown in FIGS. 6 and 7. Insert the tip of 20 to polymerize the first upper surface piece 7 and the second upper surface piece 20, and fix the fixture 3 to the respective fixing holes 9 and 9a.
4 and the upper support member 1 of the one-side member 2 and the other-side member 3
And 8 are joined. At this time, as shown in FIG. 5, a rail mounting bracket 37 is attached to the upper surface of the second upper surface piece 20 at an appropriate position in the longitudinal direction.

Next, on the inner surface of the inner piece 26 of the lower support member 19, a permanent magnet 31 is formed on the upper surface of the lower projecting piece 28.
After mounting, the concave groove 27 of the lower support member 19 is engaged with the lower end of the upper side piece 22 of the upper support member 18, and the hanging piece 10 of the one side member 2 and the upper side piece 22 of the upper support member 18 are attached.
And the outer side piece 25 of the lower support member 19 is superposed, and the screws 35 are screwed into the respective screw insertion holes 30, 30a, 30b, and the upper support member 18 and the lower support member of the one side member 2 and the other side member 3 are screwed. Assemble 19 and.

In the straight portion of the curtain rail 1, as shown in FIG. 6, the upper side piece 22 of the upper support member 18 is directly superposed on the outer surface of the hanging piece 10 of the one-side member 2. As shown in FIGS. 5 and 7, a very thin spacer 32 is interposed between the hanging piece 10 and the upper side piece 22 and fixed by a screw 35 at both ends in the longitudinal direction of the curved portion and an intermediate portion thereof. Therefore, the width of the guide space 4 formed between the commutator 13 of the one-side member 2 and the permanent magnet 31 of the other-side member 3 and the width between the lower end of the one-side member 2 and the lower end of the other-side member 3 are formed. The width of the gap 36 formed is slightly wider in the curved portion than in the straight portion.

Next, as shown in FIG. 1, the movable coil 5 is incorporated from one longitudinal end of the guide space 4. The movable coil 5 has a plurality of (for example, four) coils wound around a core along the longitudinal direction of the guide space 4, and each coil is integrated with each divided portion of the runner 6 divided in the longitudinal direction. It is installed. The divided portions of the movable coil 5 are rotatably connected to each other so as to smoothly pass through the curved portion of the guide space 4. The lower part of the movable coil 5 has a gap 3
One of the curtain suspenders 15 that is exposed to the outside through 6 and is attached to the one-side member 2 is connected to the exposed portion of the movable coil 5 through a connecting member such as a chain via a connecting member such as a chain. .

Finally, as shown in FIG. 5, the guide space 4
The longitudinal ends of the guide groove 14 and the longitudinal ends of the guide groove 14 are closed by caps 16 and 16 ', respectively.

Although not described with reference to the drawings, the curtain rail 1 assembled in this manner is mounted along the upper edge of the window via the rail mounting bracket 37, and hooks are mounted on the upper end of the curtain at appropriate intervals. Rail 1
The curtain hangings 15 of FIG. Then, when the linear motor is driven, the movable coil 5 moves along the longitudinal direction, and as a result, the curtain suspender 15 connected to the movable coil 5 slides and at the same time, the other curtain suspenders 15 function as curtains. The curtain is pulled and followed, and the curtain is opened and closed.

The upper support member 18 and the lower support member 1
It is also possible to assemble 9 with the one side member 2 in advance and connect the exposed part of the movable coil 5 and the curtain hanger 15 to the curtain hook directly on the lower end of the movable coil 5. You can stop. Further, the number of coils of the movable coil 5 can be changed appropriately.

[0028]

Since the curtain rail of the present invention is divided in the direction intersecting with the inserting direction of the commutator and the permanent magnet, the one side member and the other side member which are pre-curved and are divided, It is possible to assemble after incorporating internal parts such as permanent magnets from the widely opened side surface. Therefore, parts processing and assembly are easy, and work efficiency is significantly improved. Also, since there is no defect that internal parts are caught and difficult to mount when curved, such as one that pushes in while sliding parts such as permanent magnets from one end in the longitudinal direction, it is possible to increase the curvature of the curved part, As a result, there are fewer design restrictions and
It can be applied to windows of any shape, increasing versatility.

Further , after the upper support member is joined to the one side member, it becomes possible to incorporate a lower support member having a permanent magnet superposed on the inner surface thereof, so that the permanent magnet can be easily formed in the magnet support groove without bending in the width direction. Can be fitted.

According to the second aspect , since the movable coil can smoothly move in the curved portion having a wider guide space and a gap than the linear portion, there is less restriction on the curvature of the curved portion.

According to the third aspect , the one side member and the other side member are positioned in the curved portion only by interposing the spacer, and the assembly is further simplified.

[Brief description of drawings]

FIG. 1 is a sectional view of a curtain rail showing an embodiment of the present invention.

FIG. 2 is a sectional view of one side member.

FIG. 3 is a sectional view of an upper support member.

FIG. 4 is a sectional view of a lower support member.

FIG. 5 is an exploded perspective view of a curtain rail showing an embodiment of the present invention.

FIG. 6 is a cross-sectional view of straight portions of one side member and the other side member.

FIG. 7 is a cross-sectional view of curved portions of one side member and the other side member.

[Explanation of symbols]

1 curtain rail 2 One side member 3 Other side member 4 Guide space 5 moving coil 7 First top piece 8 First side piece 9,9a fixing hole 10 hanging pieces 11 Locking recess 12 insertion groove 13 commutator 14 Guide groove 15 Curtain hanging equipment 16,16 'cap 17 conductors 18 Upper support member 19 Lower support member 20 Second top piece 21 Second side piece 22 Upper side piece 23 Overhanging piece 24, 24 'protrusion 25 outer piece 26 Inner piece 27 groove 28 Lower overhanging piece 29 Magnet support groove 30, 30a, 30b Screw insertion hole 31 Permanent magnet 32 spacer 33 Lower side piece 34 Fixture 35 screws 36 Gap 37 Rail mounting bracket

Claims (3)

(57) [Claims] 1. A one-sided member having a curved portion in at least a part in the longitudinal direction and having a cross section divided into two in the width direction and an other-sided member are assembled, and the one side member has a lower end on one side in the width direction. A commutator is mounted on the inner surface of the provided first side piece, and the other side member is attached to the one side member.
Support member and a lower support portion joined to the upper support member
And the upper support member is the other side member.
The upper part of the second side piece provided on the lower surface of the other end in the width direction of the
The lower support member constitutes a lower portion of the second side piece.
Then, on the inner surface of the second side piece,
Of the upper projecting piece and the lower support member protruding from the inner surface of the side
A magnet is supported between the lower overhanging piece protruding from the inner surface of the side
A groove is formed, and a belt-shaped permanent magnet is mounted in the magnet supporting groove.
Is, the gap in the longitudinal direction between the lower ends of the other side member of the one side member is formed, is energized through the commutator, the movable coil and constituting the linear motor with the permanent magnet A linear motor driven curtain rail, which is slidably fitted in a guide space between a commutator and a permanent magnet, and a lower end portion of the movable coil is exposed through the gap. Wherein said guide space and the gap width before Symbol curved portion, has been driven by a linear motor according possible to claim 1, characterized in that is slightly wider than the width of the guide space and gaps in the straight portions Curtain rails. 3. The one side member has a first upper surface piece protruding from the upper end of the first side piece to the other end side in the width direction, and a hanging piece is provided on a lower surface of a tip end of the first upper surface piece. The other side member has a second upper surface piece that is slidably overlapped with and bonded to the first upper surface piece in the width direction, and is joined to the hanging piece at an appropriate position in the circumferential direction of the curved portion. claim 2, characterized in that spacers are interposed between the second side piece
Curtain rail driven by a linear motor described in.