JP2003010038A - Carrier and curtain opening/closing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain opening/closing device whose installation space is reduced, and which can open/close a curtain along a curved or inclined route as well. SOLUTION: The curtain opening/closing device 10 is provided with a guide rail 11 having a passage 17 on an upper side, a passage 16 on a lower side and a running path 16a, a bead string body 12 freely slidably provided inside the upper and lower passages 16 and 17 of the guide rail and capable of transmitting pushing and pulling force, a driving wheel 43 for driving the bead string body back and forth and a carrier 18 provided on the tip of the bead string body 12, to which the tip part of the curtain 20 is attached. The bead string body 12 is composed of a flexible wire 15 and many beads 14 provided around the wire 15 and the driving wheel 43 is engaged with the beads 14 of the bead string body and drives them to travel back and forth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a conveying device and a curtain opening / closing device using the same. For more details,
The present invention relates to a transport device that has a small mounting space and that can transport objects along a curved path, and a curtain opening / closing device that uses the transport device.

[0002]

2. Description of the Related Art A conventional curtain opening / closing device, for example, as shown in FIG. 13, has a curtain rail 102 linearly arranged in a range in which a curtain 101 travels, and a pair of pulleys rotatably provided near both ends thereof. 103, 10
4, an endless wire 105 stretched in a closed loop by these pulleys, a carrier 106 attached to one portion of the wire and guided by a curtain rail 102, and one pulley 103 is reciprocally rotated. And a motor M that operates. Also, the curtain rail 10
A large number of curtain runners 107 for hanging the curtains are provided in 2 for traveling freely. In this curtain opening / closing device 100, the front end portion 10 of the curtain is moved by the carrier 106.
1a is hung, and the portion following it is hung by the curtain runner 107. When the motor M is rotated in one direction, the drive-side pulley 103 is rotated and the endless wire 105 is circulated in one direction. Therefore, the carrier 106 moves in one direction, for example, the direction of arrow O. Thereby curtain 10
The front end portion 101a of No. 1 retracts and the curtain is opened.
When the motor M is rotated in the opposite direction, the wire 105 circulates in the opposite direction, the carrier 106 moves in the direction of arrow C, and the curtain is closed.

[0003]

The conventional curtain opening / closing device 100 has pulleys 103 and 104 at the front and back, and two wires 105 are stretched around the curtain opening / closing device 100. Therefore, a large space is required for installation. Wire 10
Since 5 is stretched in a straight line, the curtain 101 is directed in the straight direction.
It is good to open and close, but if you want to open and close along a curved path, such as a curtain around a bed in a hospital or a curtain on a curved glass window, use many wire guide wheels. Must be placed on both sides of the rail.

On the other hand, as a transportation device for articles such as factories,
A hanging chain conveyor is used. In such a chain conveyor, since the links of the chains are rotatably connected by pins, the article can be conveyed not only in the linear direction but also along a curved path in a plane. However, since the chain conveyor needs to be connected in a closed loop, it has a large installation space and is difficult to use for opening and closing curtains in a room.
Further, the chain conveyor can form, for example, a curved conveyance path in a horizontal plane, and can shift from a horizontal straight path to a vertical conveyance path while being curved. It is difficult to convey along a path that is curved in the vertical and horizontal directions in combination with the path.

The present invention requires a small installation space,
Moreover, it is a first technical subject to provide a carrier device that can drive a curtain or the like along a path that is curved vertically and horizontally. Further, a second technical object of the present invention is to provide a more space-saving curtain opening / closing device that can easily open and close the curtain along a curved path.

[0006]

A guide rail of the present invention, a linking body capable of transmitting a pushing / pulling force slidably provided in the guide rail, and a drive wheel for reciprocally driving the linking body. A carrier provided at the tip of the string of beads, wherein the string of beads comprises a flexible wire and a number of beads provided around the wire, and the drive wheel engages beads of the string of beads. It is characterized by being driven to reciprocate. Note that the wire includes not only a metal wire but also a rope or a "string" made of synthetic resin.

In such a conveying device, the guide rail slidably guides the drive-side passage for slidably guiding the drive side of the conglomerate and the return side of the conglomerate passing through the drive wheel. It is preferable to provide a return-side passage and a traveling path that is provided in parallel with the driving-side passage and guides the traveling of the carrier. The guide rail may have a curved portion. Further, the bead includes a central portion having a through hole for passing a wire in the center thereof, an engaging portion protruding laterally to the left and right of the central portion, engaging with a drive wheel, and a sliding contact portion slidably contacting a guide rail. It is preferable that the transporting device is provided with, around the driving wheel, engaging teeth that engage with the engaging portion of the beads, and an intermediate groove that accommodates the central portion of the beads. Further, it is preferable to dispose a clutch that can be engaged and disengaged between the beads of the continuous beads and the carrier.

The curtain opening / closing device of the present invention comprises any one of the above-mentioned conveying devices and a curtain rail provided along the guide rail, and is provided with a mounting portion for mounting the leading end of the curtain on the carrier. Is characterized by.

[0009]

In the carrying apparatus of the present invention, when the drive wheel is rotated, the linking body engaged with the drive wheel runs along the guide rail. At this time, when the carrying device is driven in the pulling direction, the wire of the linking body transmits the pulling force and thus operates smoothly. On the other hand, when the carrier is pushed, beads of the pearl beads transmit the pushing force in order. In this way, since the reciprocal body transmits both push and pull forces, it is not necessary to arrange in a loop shape, and no pulley is required on the tip side. Therefore, the installation space is small.

The rail includes a drive-side passage for slidably guiding the driving side of the string, a return-side passage for slidably guiding the return side of the string passing through the drive wheel, and a driving side. In the conveying device provided in parallel with the passage of No. 1 and provided with a traveling path for guiding the traveling of the carrying device, the linking bodies on the driving side and the returning side can be housed together in the guide rail. Therefore, installation in a smaller space is possible.

Further, in the conveying device in which the guide rail has the curved portion, the linking body smoothly moves in any direction by pushing and pulling along the curved portion by the guiding action by the sliding contact between the beads and the guide rail. Therefore, the carrier can be made to travel along the curved path.

Further, the bead has a central portion having a through hole for passing a wire in the center thereof, an engaging portion protruding laterally to the left and right of the central portion, engaging with a drive wheel, and a sliding contact with a guide rail. In the transfer device, the drive wheel is provided with a contact portion, and the drive wheel is provided around the drive wheel with engaging teeth for engaging the engaging portion of the beads and an intermediate groove for accommodating the center portion of the beads. Securely engages the pearl beads. Therefore, the traveling of the carrier is stable.

Further, in the transfer device in which the clutch which can be engaged and disengaged is interposed between the beads of the continuous beads and the carrier, even if a failure occurs in the continuous beads or the driving wheels, the clutch is manually released by disengaging the clutch. You can operate the carrier with.

Since the curtain opening / closing device of the present invention uses the above-mentioned transfer device, the same operation and effect as described above can be obtained.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a carrying device and a curtain opening / closing device of the present invention will be described below with reference to the drawings. FIG. 1 is a partially cutaway side view showing an embodiment in which the carrying device of the present invention is used in a curtain opening / closing device.
1 is an enlarged view of a main part of FIG. 1, FIG. 3 is a sectional view taken along line III-III of FIG. 2,
FIG. 4 is a perspective view of an essential part showing an embodiment of a linking body and a drive wheel according to the present invention, FIGS. 5a and 5b are perspective views showing another embodiment of a linking body related to the present invention, and FIGS. FIG. 8 is a perspective view and a side view showing an example of use of the curtain opening / closing device of the present invention, FIG. 8 is a side view of a main part showing still another embodiment of the carrying device of the present invention, and FIG. 9 is a sectional view taken along line IX-IX of FIG. Figure,
FIG. 10 is a perspective view showing another embodiment of the carrying device of the present invention, and FIGS. 11 and 12 are perspective views showing other usage examples of the carrying device.

The curtain opening / closing device 10 shown in FIG. 1 has a guide rail 11 having passages in the upper and lower directions, a string 12 slidably accommodated in the guide rail 11, and a drive connected to one end of the guide rail 11. And a device 13. The continuous string 12 is composed of a large number of beads 14 and a wire 15 penetrating and connecting the beads 14. The drive side 12a of the string 12 is accommodated from the lower passage 16 of the guide rail 11 to the drive device 13, and the return side 12b emerging from the drive device 13 is accommodated in the upper passage 17 of the guide rail 11. . Renju 12
The carrier 18 is connected to the tip of the. The carrier 18
Is the traveling path 1 below the passage 16 below the guide rail 11.
It is accommodated in 6a so that it can travel freely. The above-mentioned guide rail 11, linking body 12, drive device 13, and carrier 18 are also embodiments of the carrier device of the present invention. The curtain opening / closing device 10 includes a conveyor device and a plurality of conventionally known curtain runners 19 housed in a traveling path 16a so as to be freely movable.
And a curtain 20 suspended from a carrier 18 and a curtain runner 19. The leading end of the curtain 20 and the portion following it are suspended from the carrier 18 and the curtain runner 19, respectively.

The guide rail 11 is shown in FIGS.
As shown in FIG. 3, it has left and right side walls 21 and an intermediate wall 22 connecting the centers of these side walls. Furthermore, each side wall 21
A lateral rib 24 for attaching the hanging tool 23 projects inward from the upper end of the. In addition, a lateral rib 25 for accommodating the carrier 18 and the curtain runner 19 movably projects inward from the lower end of the side wall 21. Between the left and right lateral ribs 25, there are provided slits 27 for passing the upper part of the main body of the carrier 18 or the arm 26 for hanging the curtain. Partition ribs 28 and 29 projecting inwardly project between the upper lateral ribs 24 and the intermediate wall 22 and between the intermediate wall 22 and the lower lateral ribs 25, respectively. Between the left and right partition ribs 29 on the lower side, a slit 29a is provided for passing a connecting portion 26a for connecting the linking body 12 and the carrier 18. The space surrounded by the left and right side walls 21, the intermediate wall 22, and the lower partition rib 29 is
It is the lower passage 16 through which the drive side 12a of the string 12 is run. In addition, the space surrounded by the left and right side walls 21, the intermediate wall 22, and the upper partition ribs 28 is
It is an upper passage 17 for traveling on the return side 12b. Further, the space surrounded by the side wall 21, the lower partition rib 29, and the lower lateral rib 25 is a traveling path 16a through which the carrier 18 and the curtain runner 19 travel.

The guide rail 11 is an extruded product of metal such as aluminum or aluminum alloy. In the case of FIG. 3, the upper and lower sides are symmetrical so as to facilitate molding, but the upper and lower lateral ribs 24 are omitted or the upper partition ribs 28 are closed so that the upper and lower sides are asymmetrical. You can also

As shown in FIG. 2, the continuous beads 12 are composed of a large number of beads 14 and wires 15 penetrating and connecting the beads 14. A through hole 31 through which the wire 15 is passed is formed at the center of the bead 14.
A nipple 32 crimped to the tip of the wire 15 is locked to the bead 14 at the tip. The wire 15 has flexibility, and may be made of, for example, a single metal wire, a twisted metal element wire, or a rope twisted with a natural fiber or a synthetic fiber. The beads 14 can withstand compressive force and have good slipperiness, such as nylon.
It may be composed of a functional synthetic resin such as polyacetal. Further, the rubber may be coated with a synthetic resin so as to have both flexibility and elasticity to some extent and slipperiness.

The beads 14 of the continuous beads 12 are the wires 1
Although it may be fixed to the wire 5, the through hole 31 may be made somewhat larger so as to be movable in the axial direction with respect to the wire 15. In that case, when a force in the pushing direction is applied,
The beads 14 sequentially transmit the pressing force without causing slack in the wire 15. When transmitting the force in the pulling direction, the pushing force can be temporarily transmitted to the beads 14 at the front end in the traveling direction, and the pulling force can be transmitted from the beads 14 to the beads 14 at the rear end via the wire 15.

On the other hand, when the beads 14 are fixed to the wire, the pulling force can be transmitted to the wire 15 as it is, and the pulling force can be transmitted to the rear end in the traveling direction. In addition, when transmitting the pushing force, the wire 1 is placed between the adjacent beads 14.
With some slack in the beads 5, the beads 14 come into contact with each other to transmit the force in the pushing direction. However, since a frictional force normally acts between the wire 15 and the beads 14 and the elasticity of the wire 15 is expanded, slack is hardly generated when the beads 14 are fixed to the wire 15 or are movable.

As shown in FIG. 2, the carrier 18 has a traveling path 1 between a lower partition rib 29 and a lower lateral rib 25.
It has a block-shaped main body 35 passing through 6a and a roller 36 rotatably provided with respect to the main body. Body 35
The upper part of the is fixed to the bead 14 at the head of the continuous beads 12. In this embodiment, a pair of rollers 36 is provided on the left and right of the front and rear shafts 37, and a total of four rollers 36 are provided. The above-mentioned arm 26 is provided below the main body 35. Further, as shown in FIG. 3, a ring 39 for hanging a hook 38 sewn on the upper end of the curtain 20 is hung on the lower portion of the arm 26. The carrier 18 is provided with rollers 36 when the linking body 12 travels in the passage 16 below the guide rail 11.
Rolls on the lower horizontal rib 25, and thus travels along the guide rail 11.

The drive unit 13 is, as shown in FIG.
Case 41, drive shaft 42 rotatably housed in the case 41, and drive wheels 4 fixed to the drive shaft 42.
3 and a motor connected to the drive shaft 42 (see reference numeral M in FIG. 6). The motor is a conventionally known one. Engagement teeth 44 that engage with the beads 14 of the link body 12 are arranged around the drive wheel 43, and have a shape similar to a gear as a whole. The engaging teeth 44 have a form in which they engage with an engaging protrusion formed on the beads 14, an engaging recess, or a gap between the beads 14. Around the case 41, there is a peripheral wall 45 that surrounds the string 12. Further, a lower passage 16 of the guide rail 11 extending in the tangential direction is connected to a lower portion of the case 41. A curved guide 46 is interposed between the upper part of the case 41 and the upper passage 17 of the guide rail 11 so as to push and pull the reciprocal body 12 to smoothly transfer forces in both directions and allow the sliding. The bending guide 46 may be integrated with the case 41.

FIG. 4 shows an embodiment of the link 12 and the drive wheel 43. It should be noted that the drive wheels 43 are shown in a state of being engaged from the lower side for easy understanding. In this embodiment, the beads 14 of the continuous beads 12 include a central portion 51 extending in the front-rear direction and an engaging portion 52 protruding leftward and rightward from the middle of the central portion. The central portion 51 has a cylindrical shape,
A through hole 31 for passing the wire 15 is formed in the center.
The engaging portion 52 has a rectangular cross section. However, the central part 51
May have another shape such as a prismatic shape, and the cross section of the engaging portion 52 may have another shape such as a circle. In such a continuous string 12, the central portions 51 of the adjacent beads 14 contact each other at their front and rear end surfaces. And adjacent beads 14
A gap 53 is formed between the engaging portions 52 of the. The gaps 53 can be formed on the left and right sides of the continuous beads 12. On the outer periphery of the drive wheel 43, a pair of left and right engaging teeth 44 that enter the gap 53 are formed. An intermediate groove 54 into which the central portion 51 of the bead 14 is inserted is formed in the central portion of the tooth in the width direction. Therefore, the drive wheel 43 does not interfere with the central portion 51 and can be sequentially engaged with the engaging portion 52. In addition, in this embodiment, the lower surface of the engaging portion 52 is a sliding contact portion that is in sliding contact with the guide rail 11.

The engaging teeth 44 of the drive wheel 43 are formed in a trapezoidal shape in order to sequentially engage with the engaging portions 52 of the beads 14 arranged in a straight line. Therefore, the gap 55 between the engaging teeth 44 also has a trapezoidal shape, and does not fit exactly with the engaging portion 52 having a rectangular cross section. However, since the peripheral wall 45 of the case 41 of the drive device 13 and the curved guide 46 between the guide rail 11 and the case 41 guide the guide portion 11 from the outside or inside, the engagement portion 52 does not fall off the drive wheel 43. An involute tooth profile may be adopted as the engaging tooth 44.

Next, the operation of the curtain transfer device 10 configured as described above will be described with reference to FIG. When a motor (not shown) is rotated in one direction, the drive wheels 43 rotate in one direction, for example, in a direction (arrow P) in which the drive side (lower side) 12a of the continuous string 12 is drawn into the drive device 13. Then, the beads 1 meshing with the engaging teeth 44 of the drive wheel 43.
4 moves in the circumferential direction in the case 41. As a result, the entire linking body 12 moves in the lower passage 16 in the direction of arrow O, and the leading beads 14 also retract in the direction of arrow O by the pulling force transmission action of the wire 15. Therefore, the carrier 18 is also retracted together and the curtain 20 is opened. In addition, the return side 12b of the linking body 12 coming out of the drive device 13 enters the upper passage 17 of the guide rail 11 while being guided by the guide 46 by the pushing force transmission action, and moves inside the upper passage 17 thereof. Move forward. Therefore it does not get in the way.

When the motor is rotated in the opposite direction, the drive wheels 43 rotate in the opposite direction (direction of arrow Q) contrary to the above, and the beads 14 meshing with the engaging teeth 44 of the drive wheels 43 are placed in the case 41. To move in the circumferential direction. At the same time, the driving side 12a of the continuous body 12 is sequentially fed into the passage 16 below the guide rail 11. Then, due to the pushing force transmitting action of the beads 14, the leading beads 14 are finally pushed in the direction of arrow C to move forward. This causes the curtain 20 to close.
The return side 12b of the string 12 is drawn into the case 41 from the upper passage 17 by the pulling force transmission action of the wire 15 as the drive wheel 43 rotates. By controlling the rotation of the motor in this way, the curtain 20 can be opened and closed.

In the above embodiment, the beads 14 have the central portion 51.
And the engaging portions 52 projecting from the left and right sides thereof, as shown in FIG. 5a, the engaging teeth 44 of the drive wheel 43 mesh with the left and right side surfaces of the prismatic or cylindrical bead 14. The engagement recess 56 may be formed. Bead 14
In the case of a cylindrical shape, as shown in FIG. 5b, an annular engagement recess 57 can be used.

The curtain opening / closing device configured as described above can be used to open / close the curtain 20 surrounding the bed 62, for example, like the curtain opening / closing device 61 shown in FIG. In this curtain opening / closing device 61, the guide rails 11 are arranged around the bed 62 in an L shape or a U shape, and are suspended from the ceiling 63 by suspenders 64. Therefore, the guide rail 11 is curved at the corner 11a.
The symbol M is a motor, and for example, a motor with a speed reducer can be used. In the opening / closing device 10, the beads transmit the force in the pushing direction, the wire transmits the force in the pulling direction, and the guide rail 11 receives the reaction force when traveling on the bending portion 11a, so that the bending portion can be smoothly moved. Can drive. Therefore, the curtain 20 can be smoothly opened and closed along the path including the curved portion 11a. In addition,
In such a curtain opening / closing device 61, the guide rail 1
1 may be directly attached to the ceiling 63, and in that case, it is preferable to store the drive device 13 on the upper side of the ceiling 63.

The curtain opening / closing device 65 shown in FIG. 7 has several windows 6 arranged obliquely along stairs 66.
The curtain 20 is arranged so as to face 7, and the guide rail 11 extends in an oblique direction. Landing 6 following stairs 66
8 and the guide rail 11 are continuous along the slope 69. In the curtain opening / closing device 65, as described above, the force of pulling and pulling in both directions is transmitted and closed in one direction by the combination of the wire and the beads to open and close the curtain 20, and thus the guide rails arranged in such an oblique direction. 1
The curtain 20 can be opened and closed smoothly even if the horizontal direction is continuous or the diagonal direction is 1.

In the above-mentioned embodiment, the return side 12 of the continuous body 12
Although b is returned to the passage 17 on the upper side of the guide rail 11, for example, a drum is provided coaxially with the drive wheel 43,
It may be wound on the drum in a spiral shape. Further, the peripheral wall of a cylindrical case provided concentrically with the drive wheel 43 may be extended in the axial direction so as to be housed in a spiral shape along the inner surface of the peripheral wall, or the drum and the peripheral wall may be combined. Good. Further, a passage for accommodating the return side may be linearly extended in the direction opposite to the guide rail and accommodated in the passage. Further, although the drive shaft 42 is arranged in the horizontal direction in the embodiment of FIG. 1, it may be arranged in the vertical direction or the oblique direction. In that case, the passages for accommodating the drive side and the return side of the strangle body are arranged horizontally or diagonally in parallel.

The curtain opening / closing device 7 shown in FIGS. 8 and 9.
0 indicates the clutch 7 between the end bead 71 and the carrier 18.
2 is provided. That is, the bead 71 at the end is elongated, and a recess 73 that opens downward is formed on the lower surface side. The plan shape of the recess 73 is, for example, a rectangular shape, and the front end and the rear end are preferably substantially arcuate. A magnet 74 is fixed to the inner bottom surface of the recess. Further, on the upper surface side of the carrier 18, recesses 75 having substantially the same shape are provided at corresponding positions. In the recess 75 of the carrier 18, the clutch piece 7
6 is housed so as to be vertically movable. The clutch piece 76 has a height that can be accommodated in the recess 75 and is made of a material that is attracted to the magnet 74, for example, an iron piece. A string 78 is fixed to the central portion of the lower surface of the clutch piece 76, and the string 78 hangs downward through a hole that passes vertically through the center of the main body 18 of the carrier. In this embodiment, as shown in FIG. 9, a slide shoe 52a that slides on the lateral rib 29 of the guide rail is provided at the tip of the engaging portion 52 extending to the left and right of the bead 71. For other configurations, the curtain opening / closing device 1 shown in FIGS.
It is substantially the same as 0.

In this curtain opening / closing device 70, the clutch piece 76 is attracted to the magnet 74 in a normal state, so that the upper portion of the clutch piece 76 projects from the recess 75 of the carrier 18 and enters the recess 73 of the bead 71. I'm out. The pushing / pulling operation force applied to the string 12 is transmitted to the carrier 18 by engaging the front end or the rear end of the clutch piece 76 with the recess 75 of the carrier 18. Therefore, the carry device 18 travels and the curtain 20 is opened and closed as the continuous body 12 moves forward and backward. Then, when the motor of the drive wheels for driving the continuous string 12 fails, or when the operation cannot be performed by power due to a power failure or the like, the string 78 is pulled down to disengage the clutch 72, and the curtain 20 is opened and closed manually. That is, when the string 78 is pulled down, the clutch piece 76 is separated from the magnet against the magnetic attraction with the magnet 74, enters the recess 75 of the carrier 18, and the clutch piece 76 and the bead 71 are disengaged. Therefore, it is possible to freely open and close only the curtain 20 separately from the continuous string 12.

To re-engage the clutch 72, the strap 78
Operation by pulling down the
Align with position 1 and release the string 78 at that position. As a result, the clutch piece 72 is again attracted to the magnet 74, and the clutch returns to the engaged state.

In the embodiment shown in FIGS. 8 and 9, the clutch piece 76 is biased to the bead 71 side by a magnet, but a spring is housed between the recess 75 of the carrier 18 and the clutch piece 76. Alternatively, the clutch piece 76 may be pushed up by the upward biasing force of the spring. Further, the operation of engaging / disengaging the clutch may be performed by using the electromagnet or the like in addition to the operation by the string 78 as described above. In that case, it can be performed by remote control. Further, also in the drive device 13 shown in FIG.
Between the motor M and the drive shaft 42, a known mesh clutch such as a dog clutch with which clutch pieces mesh, or a known friction clutch such as a disk clutch that transmits power by friction force can be interposed.

FIG. 10 shows a carrying device 80 which is substantially the same as that used for the curtain opening / closing device. In the carrier device 80, the carrier 18 is connected not only to the beads 81 at the tip but also to some other beads 82. Further, each carrying device 18 is provided with a hole for hanging the bucket 83, and the hanging rod of the bucket 83 is hooked in the hole. It is possible to put baggage such as machine parts, documents such as a medical record of a hospital or a clinic in the bucket 83, and transport it to a necessary department. The carrier 18 and the bucket 8
3 and 3 can be integrated. This transfer device 80 is similar to the curtain opening / closing device described above in that the guide rail 11
By arranging the curved parts, it is possible to convey an object along a curved path. It is also possible to convey along a path along the stairs as shown in FIG.

In the carrying device 80 of FIG. 10, if the guide rails 11 are arranged in the vertical direction or the oblique direction, the objects can be carried up and down. However, guide rail 1
When arranging 1 vertically, the direction of the bucket 83 is rotated 90 degrees around the horizontal axis as shown on the right side of FIG. As shown in FIG. 11, if the bucket 83 is rotatably connected to the carrier 18 about a horizontal axis, even when the guide rail 11 is gently curved in the vertical direction from the horizontal state, the guide rail 11 is not bent. Along the bucket 83
Can be transported.

In the carrying device 85 of FIG. 12, the main body 35 of the carrying device 18 is elongated in the front-rear direction, and a large gap is provided between the front and rear rollers 36. Further, the bearing portions of the front and rear rollers 36 are connected to the main body 35 so as to be rotatable around a vertical line. This can hang a comparatively large bucket 83, and since the bearing portion of the roller 36 changes its direction along the guide rail 11, it can cope with the curved guide rail 11 even if it is hung at two places. It is also possible to connect a carrier to each of the two beads that are separated from each other in the front and back, and hang one large bucket on each of the carriers. In that case, it is preferable to connect a bucket to each carrier so as to be rotatable around a vertical line.

In the carrying device 85 of FIG. 12, the guide rail 11 is formed in a spiral shape. Even when the guide rail 11 is curved in both the horizontal direction and the vertical direction in this way, the linking body smoothly travels in the guide rail, and the carrier 18 also follows the movement smoothly. Then, as the vehicle travels in the spiral direction, the buckets 83 move up and down.
Can be moved. Therefore, it is possible to smoothly shift from horizontal movement to vertical movement or vice versa.

[Brief description of drawings]

FIG. 1 is a partially cutaway side view showing an embodiment of an opening / closing device of the present invention.

FIG. 2 is an enlarged view of a main part of FIG.

3 is a sectional view taken along line III-III in FIG.

FIG. 4 is a perspective view of an essential part showing an embodiment of a link body and a drive wheel according to the present invention.

FIG. 5a and FIG. 5b are perspective views showing another embodiment of the link body related to the present invention.

FIG. 6 is a perspective view showing an example of use of the opening / closing device of the present invention.

FIG. 7 is a side view showing an example of use of the opening / closing device of the present invention.

FIG. 8 is a partially cutaway side view showing still another embodiment of the carrying device of the present invention.

9 is a sectional view taken along line IX-IX in FIG.

FIG. 10 is a perspective view showing another embodiment of the carrying device of the present invention.

FIG. 11 is a perspective view showing another usage example of the carrying device.

FIG. 12 is a perspective view showing another usage example of the carrying device.

FIG. 13 is a perspective view showing an example of a conventional curtain opening / closing device.

[Explanation of symbols]

10 Curtain opening and closing device 11 Guide rail 12 consecutive pearls 12a drive side 12b Return side 13 Drive 14 beads 15 wires 16 Lower passage 17 Upper passage 16a runway 18 Transporter 19 curtain runner 20 curtains 21 Side wall 22 Middle wall 23 Hanging equipment 24, 25 horizontal ribs 26 arms 26a connection part 27 slits 28, 29 partition ribs 29a slit 31 through hole 32 nipples 36 Roller 37 axes 38 hooks 39 ring 41 cases 42 Drive shaft 43 drive wheels 44 engaging teeth 45 surrounding wall 46 Curved guide 51 Central part 52 Engagement part 53 gap 54 Intermediate groove 55 Gap 56, 57 engagement recess 61 Curtain opening and closing device 62 beds 63 ceiling 64 fishing tackle 65 curtain opening and closing device 66 stairs 67 windows 68 Landing 69 slope 70 Curtain opening and closing device 71 end beads 52a slide shoe 72 clutch 73 recess 74 Magnet 75 recess 76 clutch piece 78 String 80 Conveyor 81 Leading beads 82 Other beads 83 buckets 85 Conveyor

Claims (6)

[Claims] 1. A guide rail, and a linking body slidably provided in the guide rail and capable of transmitting a push-pull force,
A driving wheel for reciprocating the reed body and a carrier provided at the tip of the reed body are provided. The reed body is composed of a flexible wire and a large number of beads provided around the wire. And a drive device in which the drive wheel engages with beads of a conjugated body and drives to reciprocate. 2. The guide rail includes a drive-side passage for slidably guiding the drive side of the strangle body, and a return-side passage for slidably guiding the return side of the strangle body passing through the drive wheel. The transport device according to claim 1, further comprising: a travel path that is provided in parallel with the drive-side passage and that guides travel of the carry device. 3. The transfer device according to claim 1, wherein the guide rail has a curved portion. 4. The bead is in sliding contact with a guide rail, a central portion having a through hole for passing a wire in the center thereof, an engaging portion protruding laterally to the left and right of the central portion, and engaging with a drive wheel. And a sliding contact portion, the drive wheel around it,
The transport device according to claim 1, further comprising: an engaging tooth that engages with an engaging portion of the bead, and an intermediate groove that accommodates a central portion of the bead. 5. The transfer device according to claim 1, wherein an engagement / disengagement clutch is interposed between the beads of the continuous beads and the carrier. 6. The conveyance device according to claim 1, 2, 3, 4 or 5, and a curtain rail provided along the guide rail, wherein a mounting portion for mounting a front end portion of the curtain is provided on the carrier. Curtain opening and closing device.