JPH09100089A - Article transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make an article transfer device suitable for the case of being used at high lift work in particular by installing this transfer device which e.g. makes materials go up and down and horizontally displace, or turn. SOLUTION: When a down wire 72 rolled on a take-down drum of a down operating mechanism is pulled, this take-down drum normally rotates, and the rotation is transmitted to a main shaft 31 by way of a turning transmission mechanism, and thereby a lifting wire 33 is wound out and an illuminating lamp 12 goes down. When an ascending wire 81 rolled on a take-up drum of an up operating mechanism is pulled up, the take-down drum rotates in reverse, and the rotation is transmitted to the main shaft 31 by way of the turning transmission mechanism and a clutch mechanism, whereby the lifting wire 33 is wound up and the illuminating lamp 12 goes up. The ascending wire 81 is always rewound by a spiral spring together with the take-up drum, and when piecemeal pulling motion is repeated, the illuminating lamp 12 is restored to the original state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a moving device for raising and lowering, horizontally moving, or turning an article, and more particularly to an article moving apparatus suitable for use at a high place.

[0002]

For example, in a building such as a building, a station, or a warehouse as well as a house, articles such as a lighting lamp, a signboard, and a clock are mounted on a relatively high place such as a ceiling or an upper part of a wall. In many cases When performing maintenance such as cleaning, inspection, and replacement of these articles, normally, a scaffold such as a stepladder is installed on the floor below the articles, and the scaffolding is carried out. In addition, when opening and closing work such as windows and shutters in high places, scaffolding is similarly installed, or an electric opening / closing mechanism is provided.

However, work on the scaffolding is laborious and time-consuming, and in some cases dangerous.
Especially when the installation location is on the stairs, it was difficult to install the scaffolding on the stairs, which was extremely difficult. In addition, if an electric opening / closing mechanism is provided in the window or shutter as described above, opening / closing work will be easier, but it will be expensive and it will be difficult to retrofit the existing one with an opening / closing mechanism. It was

The present invention has been made in view of the above circumstances, and provides an article moving apparatus which enables safe and easy operations such as maintenance of articles at high places and opening and closing of windows at high places. Is intended.

[0005]

The present invention has been made to achieve the above object, and is characterized by the following means. The article moving apparatus according to claim 1, wherein the article is connected rotatably, the articles are connected, and a main shaft to which the article is moved by the rotation, and a movement connected to the main axis via a rotation transmission mechanism. The rotation transmission mechanism comprises a driven shaft connected to the main shaft, a drive shaft for rotating the driven shaft, and a drive shaft interposed between the drive shaft and the driven shaft. The rotation operating mechanism transmits the rotation of the shaft to the driven shaft, but controls the rotation of the driven shaft when a rotational force is input to the driven shaft. A normal rotation operating mechanism including a first drum connected to the drive shaft of the mechanism, and a normal rotation operating strip that is wound around the first drum and rotates normally when the first drum rotates. A second drum engaged with the first drum via a clutch mechanism for transmitting only reverse rotation. Reversing operation including a ram, a reversing operation strip that is wound around the second drum, and reverses the second drum when pulled, and a rewinding mechanism that rewinds the reversing operation strip onto the second drum. And a mechanism.

According to the above-mentioned solution means, when the normal rotation operating strip wound around the first drum of the normal rotation operating mechanism is pulled, the first drum rotates in the normal direction, and the rotation thereof causes the rotation transmitting mechanism. Drive shaft,
The article is transmitted to the main shaft via the driven shaft brake mechanism and the driven shaft, and the article moves in the direction according to the normal rotation of the main shaft. Further, when the reversing operation strip wound around the second drum of the reversing operation mechanism is pulled, the second drum reversely rotates, and the rotation thereof causes the clutch mechanism, the drive shaft of the rotation transmitting mechanism, the driven shaft braking mechanism, The article is transmitted to the main shaft via the driven shaft, and the article moves backward in the direction corresponding to the reverse rotation of the main shaft. The reversing operation strip is always rewound to the rewinding mechanism together with the second drum.

An article moving device according to a second aspect of the present invention is characterized in that, in the invention according to the first aspect, a lock mechanism for detachably fixing the article at a predetermined position is provided. With this configuration, careless movement of an article at a predetermined position is prevented, which is safe.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A. "Structure of Lighting Device" FIGS. 1 and 2 show a lighting device (article) 2 in which an elevating device (article moving device) 1 according to an embodiment of the present invention is incorporated. The illuminating device 2 is composed of an illuminating lamp 12 in which two fluorescent lamps 10 are detachably attached to a top plate 11, and a casing 13 in which the illuminating lamp 12 is detachably accommodated.

The top plate 11 of the illuminating lamp 12 has an inverted triangular cross-section in the width direction, and the fluorescent lamp 10 is mounted in sockets 16 fixed to both sides of a central valley 14. Positioning plates 18 are provided on both sides of the top plate 11 in the width direction.
Are formed. On the other hand, the casing 13 is a slender box-shaped one in which side plates 20 are integrally formed at both ends in the width direction of a slender main plate 19, and further reflecting plates 21 are connected to the side plates 20. It is fixed or fixed to the ceiling via a hanging rod. The illumination lamp 1
2 is the casing 1 for the positioning plate 18 of the top plate 11.
By fitting inside the side plates 20 of No. 3, the casing 1
It is stored in 3. A cushion 22 that elastically receives the positioning plate 18 is attached to each side plate 20.

B. "Structure of Lifting Device" The lifting device 1 is a device that is housed in the casing 13 and that lowers or raises the illumination lamp 12 housed in the casing 13 and returns it to the original state.
As shown in FIGS. 1 to 6, the lifting device 1 includes a main shaft 31 rotatably supported by a main plate 19 of a casing 13 via a bracket 30, and a winding drum 32 at both ends of the main shaft 31. A suspension wire 33 that is wound around and supports the illumination lamp 12 by hanging it, a lifting operation mechanism (movement operation mechanism) 60 connected to one end of the main shaft 31 through a rotation transmission mechanism 40, and the illumination lamp 12 And a lock mechanism 120 for removably fixing it to the casing 13.

B-1. “Main spindle” The main spindle 31 is located in the casing 13 at a position offset to one side from the widthwise center of the casing 13 as shown in FIGS. 1 and 2.
Are arranged along the longitudinal direction of the bracket 30, and both ends thereof are rotatably supported by the bracket 30. Bracket 30
The drum covers 34 are fixed to the drum cover 34, and the winding drums 32 coaxially fixed to the main shaft 31 are housed inside the drum covers 34, respectively. The suspension wire 33 is wound around these winding drums 32 in the same direction. These hanging wires 33 are
It is guided downward through the drum cover 34, and a coil spring 35 is connected to the tip thereof. Then, these coil springs 35 form the valley portion 1 of the top plate 11 of the illumination lamp 12.
It is hooked on the hook 23 provided on the No. 4.

The illuminating lamp 12 can be moved up and down by unwinding the hanging wire 33 from the winding drum 32 and winding the hanging wire 33 around the winding drum 32. FIG.
As shown in, the top plate 11 is fitted into the casing 13 in the completed winding state. Even if the winding amount is slightly biased when the left and right suspension wires 33 are wound, and the lighting lamp 12 becomes slanted, the coil spring 35 extends at the end of winding and the lighting lamp 12 is securely attached to the casing 13. It is designed to fit.

Further, as shown in FIG. 1, a ballast 24 for the fluorescent lamp 10 is provided at the upper center of the top plate 11,
An energizing cable 26 is connected to the ballast 24. The energizing cable 26 is adapted to be retractably wound around a reel 27 installed in the casing 13.

Here, as shown in FIGS. 1, 2 and 3, when the hanging wire 33 is unwound from the winding drum 32 and the illumination lamp 12 descends, the main shaft 31 is rotated in the normal direction. (Direction of arrow A), and vice versa, the rotation direction of the main shaft 31 when the hanging wire 33 is wound around the winding drum 32 and the illumination lamp 12 rises is defined as "reverse rotation" (direction of arrow B). To do.

Both the rotation transmission mechanism 40 and the lifting operation mechanism 60 are fixed to the main plate 19 of the casing 13 of the illuminating device 2 via a mounting base 39 by fixing means such as screws. Next, these mechanisms 40 and 60 will be described.

B-2. “Rotation Transmission Mechanism” As shown in FIGS. 7 and 8, the rotation transmission mechanism 40 includes a driven shaft 41 connected to the main shaft 31, a drive shaft 42 for rotating the driven shaft 41, and these driven shafts. 41 and drive shaft 42
And a driven shaft brake mechanism 43 interposed between

The driven shaft 41 and the drive shaft 42 have the same shape, and a large diameter portion 45 is formed at the tip of the shaft body 44, and the large diameter portion 45 has a length of about 3 minutes at the tip of the large diameter portion 45. Is a cylindrical member in which an arcuate engagement piece 46 having an arc length of about 1 is formed. The driven shaft 41 and the drive shaft 42 are coaxially housed in a cylindrical sleeve 48 via a collar 47, with the large diameter portions 45 facing each other and the engagement pieces 46 overlapping in the radial direction. ing. Sleeve 4
8 is sandwiched between a pair of frames 49 that are screwed together, and each collar 47 is engaged with the frame 49, so that the driven shaft 41 and the drive shaft 42 are prevented from coming off from the sleeve 48. There is. Protrusions 50 are formed so as to face each other on both edges of the sleeve 48 in the axial direction.
0 is fitted into a fitting hole 51 formed in the frame 49. Thereby, the sleeve 48 is fixed to the frame 49. Collar 47 and sleeve 48, collar 47
The driven shaft 41 and the drive shaft 42 are rotatable relative to each other.

A torsion coil spring 52 is interposed between each large diameter portion 45 of the driven shaft 41 and the drive shaft 42. The arm portions 53 at both ends of the torsion coil spring 52 are bent inward in the radial direction. This torsion coil spring 52 is
The engaging pieces 46 are externally mounted on the outer peripheral side of both engaging pieces 46 with a space therebetween, and are strongly pressed against the inner peripheral surface of the sleeve 48 by the spring force thereof, and are usually integrated with the sleeve 48. The engaging piece 46 of the driven shaft 41 is arranged so as to engage with the rewinding side of each arm 53 of the torsion coil spring 52, and the engaging piece 46 of the drive shaft 42 engages with the winding side. They are all arranged to match.

According to the rotation transmission mechanism 40 having the above structure, when the drive shaft 42 is rotated about its axis, the engagement piece 46 of the drive shaft 42 engages with the one arm 53 of the torsion coil spring 52. Then, the torsion coil spring 52 is wound and loosely integrated with the sleeve 48, and the drive shaft 42 rotates. Then, the engagement piece 46 of the drive shaft 42 engages with the engagement piece 46 of the driven shaft 41 via the arm portion 53, whereby the rotation of the drive shaft 42 is transmitted to the driven shaft 41, and the two shafts 41, 42 are Rotate together. On the other hand, when trying to rotate the driven shaft 41, the driven shaft 4
The engaging piece 46 of No. 1 is one arm 5 of the torsion coil spring 52.
3, the force is applied to the torsion coil spring 52 in the unwinding direction. Therefore, the torsion coil spring 52
Is strongly pressed against the inner peripheral surface of the sleeve 48, so that the driven shaft 41 does not rotate. That is, when rotational force is input to the drive shaft 42, the driven shaft 41 rotates together with the drive shaft 42. Conversely, even when rotational force is input to the driven shaft 41, rotation of the driven shaft 41 is restricted and the driven shaft 41 is naturally driven. The shaft 42 also does not rotate. The torsion coil spring 52 and the sleeve 48 constitute the driven shaft braking mechanism 43 in the case of this embodiment.

The rotation transmission mechanism 40 is fixed to the mounting base 39 via a mounting plate 54 having a U-shaped cross section by means such as screwing. The bearing plate 55 of the driven shaft 41 is fixed to the mounting plate 54.

B-3. "Elevating / lowering operation mechanism" As shown in FIGS. 4 and 5, the elevating / lowering operation mechanism 60 includes a lowering operation mechanism (normal rotation operation mechanism) 61 adjacent to the rotation transmission mechanism 40 and a leftward operation mechanism (reverse rotation operation mechanism). The operating mechanism) 62 is combined. Both mechanisms 61,
62 are juxtaposed on one input shaft 63 and are housed in the casing 13 of the lighting device 2. The input shaft 63 has one end fitted to the drive shaft 42 of the rotation transmission mechanism 40, and is connected by a screw 64 and a nut 65 so as to rotate integrally with the drive shaft 42. Then, one end on the rotation transmission mechanism 40 side and the other end on the opposite side are rotatably supported by the bearing plate 66 and the bracket 67, respectively. The bearing plate 66 and the bracket 67 are fixed to the mounting base 39 by means such as screwing.

B-3-1. “Descent operation mechanism” The descend operation mechanism 61 is a lowering drum (first drum) 71 which is coaxially fitted to the input shaft 63 and is connected by a rivet 70 so as to rotate integrally with the input shaft 63, and this lowering mechanism. A descending wire (normal rotation operation strip) 72 wound around a drum 71
It is composed of The lowering drum 71 is shown in FIG.
As shown in (a) and (b), boss portions 75 and 76 are coaxially formed at both axial ends of a body portion 74 in which a circumferential groove 73 around which a descending wire 72 is wound is formed. The rivet 70 is attached to the boss portion 75 on the rotation transmission mechanism 40 side and the input shaft 63.
Has been penetrated.

The descending wire 72 is wound around the lowering drum 71 in the same direction as the suspension wire 33 wound around the winding drum 32 of the main shaft 31. That is, when the descending wire 72 is pulled, the lowering drum 71 rotates in the normal direction, the hanging wire 33 is unwound, and the illumination lamp 12 descends. Two rings 77 are attached to the tip of the descending wire 72.
Are connected in order. The length of the descending wire 72 is set so that the unwinding length of the end of the illuminating lamp 12 in the casing 13 is such that the ring 77 hangs down.

B-3-2. "Climbing Operation Mechanism" The lifting operation mechanism 62 includes a hoisting drum (second drum) 80 coaxially and rotatably fitted to the input shaft 63, and a hoisting wire wound around the hoisting drum 80 (reverse operating mechanism). )
81. In the winding drum 80, a body portion 84 is coaxially formed with a shaft portion 82 rotatably fitted on an input shaft 63 via a collar portion 83, and a raising wire 81 is wound around an outer peripheral surface of the body portion 84. A circumferential groove 85 is formed,
Furthermore, annular recesses 86 and 87 are formed on both sides of the body portion 84, respectively. Both end surfaces of the shaft portion 82 are in contact with the flange portion 68 formed on the input shaft 63 and the bracket 67, whereby the winding drum 80 is restricted from moving in the axial direction. The collar 68 of the input shaft 63
Has a smaller diameter than the shaft portion 82.

The ascending wire 81 is wound around the hoisting drum 80 in the opposite direction to the descending wire 72 wound around the hoisting drum 71 of the hoisting operation mechanism 61. That is,
When the rising wire 81 is pulled, the winding drum 80 rotates in the reverse direction. Similar to the descending wire 72, two rings 88 are sequentially connected to the tip of the ascending wire 81.

Lowering drum 7 in winding drum 80
A cylindrical clutch drum 90 is fitted in the recess on the first side with a slight distance from the lowering drum 71. As shown in FIGS. 10A and 10B, the clutch drum 90 has a collar portion 92 formed at the end of the body portion 91 on the side of the lowering drum 71, and the body portion 91 is the winding drum. It is fitted to the shaft portion 82 of 80 so as to be rotatable and slidable in the axial direction. A slide groove 93 extending obliquely at a predetermined angle with respect to the circumferential direction is formed on the outer peripheral surface of the body portion 91. The slide groove 93 is formed obliquely so as to move in the reverse direction and thus move away from the lowering drum 71. A bolt 94 mounted on the body portion 84 of the winding drum 80 is fitted into the slide groove 93.

A plurality of clicks 95 and clutch teeth 96 along the circumferential direction are formed on the outer peripheral surface and the end surface of the collar portion 92, respectively. The click 95 is composed of a gentle slope 95a facing the forward rotation direction of the winding drum 80 and an engaging surface 95b which is a steep slope facing the reverse rotation direction. Further, the clutch teeth 96 are provided on the winding drum 80.
It is composed of an inclined surface 96a of approximately 45 degrees that faces the forward rotation direction and an engagement surface 96b that is a vertical surface of approximately 90 degrees that faces the reverse rotation direction.

As shown in FIGS. 6 and 11, the click 95 of the clutch drum 90 is acted by a pressing plate 100 for restricting the rotation of the clutch drum 90 in the reverse direction when the force is less than a certain force. This pressing plate 100 is
As shown in FIG. 12, it is a plate material that is bent in an L shape and is composed of a long plate portion 101 and a short plate portion 102. A long hole 101a extending in the longitudinal direction of the long plate portion 101 is formed at one end of the long plate portion 101, and the clutch drum 9 is provided at one end of the short plate portion 102.
An engaging convex portion 102a is formed which comes into sliding contact with the click 95 as the 0 turns, and which engages with the engaging surface 95b of the click 95 midway. In addition, both plate portions 101, 10
A pair of shaft plates 103 are formed to face each other at the second connecting portion. On the other hand, the mounting base 39 above the click 95
On the lower surface of the rectangular bracket 1 having support plates 104 facing each other as shown in FIGS.
05 are fixed along the width direction of the mount 39 (left and right direction in FIG. 6). In the pressing plate 100, the long plate portion 101 is oriented in the extending direction of the bracket 105, and the shaft plate 103 is provided.
Are sandwiched between the support plates 104 of the bracket 105 and are pin-connected.

In this mounted state, the pressing plate 100 is slightly separated from the bracket 105 and can swing about the shaft plate 103, but the swing is restricted by the screw 106 and the coil spring 107. The screw 106 and the coil spring 107 engage the click 95 with the convex portion 10.
2a is in contact. The screw 106 is a long plate portion 1 from the lower side.
01 through the elongated hole 101a, and further penetrates the mounting base 39 and is fixed to the mounting base 39 by two nuts 108. A nut 109 and a washer 99 are fitted to the screw 106 from the head 106 a side of the screw 106.
The coil spring 107 is interposed between the elongated plate portion 101 and the long plate portion 101 in a compressed state. The coil spring 107 urges the long plate portion 101 toward the mounting base 39 side, and accordingly, the short plate portion 102 is rotated toward the click 95 side, and the engaging convex portion 102 is formed.
The a comes in contact with the click 95. In this state, the long plate portion 101 is substantially parallel to the bracket 105. As the nut 109 is screwed in a direction away from the head portion 106a, the biasing force of the coil spring 107 becomes stronger and the engaging force of the engaging convex portion 102a with respect to the engaging surface 95b of the click 95 becomes stronger. As a result, the reverse rotation of the clutch drum 90 is restricted by the pressing plate 100. The rotation in the forward rotation direction is allowed.

Clutch teeth 96 of the clutch drum 90
As shown in FIGS. 9A and 9B, the clutch teeth 96 are formed on the end surface of the boss portion 76 of the lowering drum 71 facing the
Clutch teeth 110 are formed to mesh with each other. The clutch teeth 110 are formed with similar slopes 110a and engagement surfaces 110b that are in close contact with the slopes 95a and engagement surfaces 95b of the clutch teeth 96.

In the recess 87 on the left side of the winding drum 80 shown in FIGS.
Mainspring (rewinding mechanism) for urging the spring in the forward direction 11
1 is stored. The main spring 111 has a coiled inner end that is screwed onto the bracket 67.
And the outer end is locked to the inner peripheral surface of the recess 87, and the winding direction coincides with the reverse direction of the winding drum 80.

According to the lifting operation mechanism 62, when the lifting wire 81 is pulled, the winding drum 80 rotates in the reverse direction, and the bolt 94 also rotates integrally. The bolt 94 is in slidable contact with the inner wall surface of the slide groove 93 of the clutch drum 90 formed obliquely with respect to the circumferential direction, and due to the friction, the clutch drum 90 receives a force to rotate together, but is restricted by the pressing plate 100. Only the winding drum 80 rotates without rotating. However, as the bolt 94 moves while slidingly contacting the slide groove 93, the clutch drum 90 is pushed by the bolt 94 and moves to the lowering drum 71 side, and the clutch teeth 96 and 110 mesh with each other. If the reverse rotation of the winding drum 80 continues further from this state, a force exceeding the regulation force of the pressing piece 100 is applied to the clutch drum 90.
The rotation of the winding drum 80 is transmitted to the clutch drum 9.
It is transmitted to the lowering drum 71 through 0.

Next, when the pulling force of the raising wire 81 is released or released, the winding drum 80 is returned in the reverse direction by the mainspring 111, that is, it is normally rotated.
When the winding drum 80 rotates in the normal direction, the bolt 94 moves the clutch drum 90 in a direction away from the winding drum 71, the clutch teeth 96 and 110 are disengaged from each other, and the original state is restored. Only the reverse rotation of the winding drum 80 is transmitted to the lowering drum 71. The clutch drum 90 formed with the clutch teeth 96 and 110 and the boss portion 76 of the lowering drum 71 are
A clutch mechanism 113 that transmits only the reverse rotation of the winding drum 80 to the lowering drum 71 is configured.

B-4. “Locking Mechanism” The locking mechanism 120, as shown in FIGS. 1 and 3, has a pin 121 protruding from the center of the upper surface of the ballast 24 of the illuminating lamp 12, and the lighting device 2 corresponding to the pin 121.
And the attaching / detaching mechanism 122 provided in the casing 13.

B-4-1. “Pin” As shown in FIGS. 3 and 14, the pin 121 has a shaft portion 124 formed on a fixed base 123 fixed to the ballast 24, and a head portion 125 formed on the shaft portion 124. It was done. The shaft portion 124 has a large diameter portion 124a on the fixed base 123 side and a small diameter portion 124b on the head portion 125 side. The head portion 125 is formed to have substantially the same diameter as the large diameter portion 124a of the shaft portion 124, and has a conical guide portion 125a on the upper portion thereof.

B-4-2. “Detachment Mechanism” The attachment / detachment mechanism 122, as shown in FIGS.
A casing 128 in which annular covers 127 are attached to both opening edges of the body 126, and the casing 128.
A movable plate 129 and a clamp 130 housed inside are provided.

A flange-shaped bearing portion 131 is coaxially formed on the inner peripheral side of the body portion 126 of the casing 128. A plurality of (three in this case) bosses 132 are formed on the inner peripheral surface of the body 126 at equal pitches in the circumferential direction. The cover 127 is detachably screwed to the bosses 132. The casing 128 has its axial direction aligned with the vertical direction, and is fixed to the main plate 19 of the illuminating device 2 with a slight gap from the main plate 19.

The movable plate 129 is formed by coaxially forming an annular cam plate portion 134 on the outer periphery of a collar 133 which is cylindrical and has a guide hole 133a inside. The cam plate portion 134 is a bearing portion of the casing 128. The collar 133 is disposed on the 131 and is rotatably fitted to the bearing 131. The inner diameter of the collar 133 is set so that the head 125 of the pin 121 can be slidably contacted with the inner peripheral surface of the collar 133, and the circular hole 127a at the center of the cover 127 has a collar 133.
It is set slightly larger than the outer diameter of.

The boss portion 13 is provided on the outer peripheral portion of the cam plate portion 134.
A notch 135 is formed as a relief for 2.
The notch 135 is formed with a predetermined length in the circumferential direction,
The movable plate 129 rotates about the collar 133 by the length of the notch 135. A torsion coil spring 136 is wound around the collar 133 on the upper side of the cam plate portion 134. Arms 137 and 138 at both ends of the torsion coil spring 136 extend outward in the radial direction. One arm 137 is a projection 139 formed on the movable plate 129, and the other arm 138 is a body 126. Are engaged with the slits 140 formed at the opening edge of each.

The movable coil 129 is constantly urged in the direction of arrow C in FIG. 15 by the torsion coil spring 136, and rotation by the urging force is restricted by the boss portion 132. On the upper surface of the cam plate portion 134 of the movable plate 129,
A lever 141 extending parallel to the upper surface is fixed, and the lever 141 allows the movable plate 129 to rotate in the opposite direction (arrow D direction) against the torsion coil spring 136. Further, a plurality of (three in this case) cam holes 142 are formed in the cam plate portion 134 of the movable plate 129 at equal pitches in the circumferential direction. A cam surface 143 is formed on the inner surface on the outer peripheral side of the cam hole 142.

Three bolts 144 corresponding to the number of cam holes 142 are screwed into the lower surface of the bearing portion 131 of the casing 128 at equal pitches in the circumferential direction. These bolts 14
The clamp 130 is rotatably attached along a plane parallel to the bearing 131 with the axis 4 as the axis. The clamp 130 is supported by a bolt 144 at an intermediate portion in the longitudinal direction, a hook portion 145 having an arcuate surface 145a formed inside is formed at the tip end, and a cam pin 148 is provided at the base end from the bottom. Inserted and fixed. The cam pin 148 has an insertion hole 131 formed in the bearing 131.
a and the cam hole 142 of the movable plate 129 are penetrated. Then, each clamp 130 includes a bolt 144 and a clamp 13.
The hook portion 145 is constantly urged in a direction in which the hook portion 145 rotates toward the center of the casing 128 and approaches each other by the torsion coil spring 146 that is hung around 0 itself.

In this state, the clamp hole 147 formed by the arcuate surface 145a of the hook portion 145 of each clamp 130 is coaxial with the guide hole 133a inside the collar 133 of the movable plate 129, and this guide hole 133 is formed.
It has a smaller diameter than a. The cam pin 148 is in contact with the outermost end of the cam surface 143.

According to the attaching / detaching mechanism 122, the pin 121
When the head 125 of the is inserted into the clamp hole 147 formed by the three clamps 130 from below, the guide part 125a gradually resists the biasing force of the torsion coil spring 136 and the hook part 145 of the clamp 130. The guide hole 133 while sliding it in contact with the collar 133.
It is inserted into a. When the head 125 passes through the clamp hole 147, the torsion coil spring 136 causes each clamp 13
0 returns to the original state, and the small diameter portion 124b of the shaft portion 124 is sandwiched by the hook portion 145. As a result, the head portion 125 of the pin 121 is engaged with the hook portion 145 of each clamp 130 to prevent the pin 121 from coming off, and is locked.

From this locked state, the lever 141 is rotated in the direction against the torsion coil spring 136. Then, the movable plate 129 rotates together with the lever 141, and the cam surface 143 pushes the cam pin 148 inward. Cam pin 1
When 48 is pushed inward, the hook portion 1 of the clamp 130
45 is rotated to the outer peripheral side, and the clamp hole 147 is provided with the collar 13
3 is larger than the guide hole 133a. In this state, the pin 121 comes out of the guide hole, and thereafter, when the lever 141 is released, the movable plate 129 and each clamp 130 return to their original positions.

As shown in FIG. 3, the lever 141 is operated by a descending wire 72 wound around a lowering drum 71 of the descending operating mechanism 61. The descending wire 72 is the arm 1 supported by the bearing plate 60.
It is hooked on the tip of 50 through a pulley 151. The arm 150 is swingably supported in the vertical direction, and when the descending wire 72 is pulled, the arm 150 swings downward. Then, the connecting wire 152 connecting the arm 150 and the lever 141 is pulled, and the lever 141 rotates,
The lock of the pin 121 by the attachment / detachment mechanism 120 is released. When the pulling force of the descending wire 72 is weakened or released, the arm 150 returns upward by the return spring 153, and the lever 141 also returns to the original position.

C. [Operation of Lifting Device] Next, the operation of the lifting device 1 will be described. C-1. “Descent of Illumination Lamp” When performing maintenance such as cleaning or replacement of the fluorescent lamp 10 of the illumination lamp 12, the illumination lamp 12 is lowered by using the descending operation mechanism 61. For that purpose, an operation rod (not shown) whose tip is bent in a hook shape is prepared, and the tip of this operation rod is hooked on the ring 77 of the descending wire 72 to pull the descending wire 72. Then, first, the arm 150 swings downward, and the attachment / detachment mechanism 122 that constitutes the lock mechanism 120.
The lever 141 rotates to release the lock mechanism 120, and the illumination lamp 12 can be lowered. Then, the lowering drum 71 rotates in the forward direction, and the lowering drum 71 rotates to the main shaft 31 via the input shaft 63, the drive shaft 42 of the rotation transmission mechanism 40, the driven shaft brake mechanism 43, and the driven shaft 41. It is transmitted. The winding drum 3 that rotates (normally rotates) together with the main shaft 31.
The suspension wire 33 is unwound from 2, and the illumination lamp 12 descends. The illumination lamp 12 is lowered to a position where maintenance can be performed, and when the maintenance is completed, the illumination lamp 12 is raised and returned to the original position.

C-2. “Rise of Illumination Lamp 12” To raise the illumination lamp 12, the raising operation mechanism 62 is used. That is, the operating rod is moved to the ring 8 of the lifting wire 81.
8 and pull the rising wire 81. Then, the winding drum 80 reverses, and the mainspring 111 bends to the winding limit. The reverse rotation of the winding drum 80 brings the clutch mechanism 113 into the connected state as described above, and the rotation of the winding drum 80 causes the winding drum 71, the input shaft 63, the drive shaft 42 of the rotation transmission mechanism 40, and the driven shaft brake mechanism 43. ,
It is transmitted to the main shaft 31 via the driven shaft 41. The suspension wire 33 is wound around the winding drum 32 that rotates (reverses) with the main shaft 31, and the illumination lamp 12 rises.

The one-time rotation amount of the winding drum 80 is regulated to a certain amount by the mainspring 111, and accordingly, the raising of the illuminating lamp 12 also stops there. When the rotation of the hoisting drum 80 is stopped, the force for pulling the raising wire 81 is weakened.
Then, the winding drum 8 is returned by the returning force of the mainspring 111.
0 rotates normally, and the rising wire 81 is wound around the winding drum 80. When the winding drum 80 rotates in the normal direction, the bolt 94 pushes the clutch drum 90 toward the winding drum 80 to move it. As a result, the clutch teeth of the clutch drum 90 and the lowering drum 71 are disengaged from each other, and the clutch mechanism 113 is disengaged. Therefore, the normal rotation of the winding drum 80 is not transmitted to the main shaft 31,
The illumination lamp 12 does not descend.

As described above, by repeatedly pulling / returning the raising wire 81 and repeating the forward / reverse rotation of the winding drum 80, the illuminating lamp 12 is raised in small increments and finally housed in the casing 13. Accordingly, the pin 121 of the lock mechanism 120 is locked by the attachment / detachment mechanism 122. Although the turning force in the forward rotation direction is always input to the main shaft 31 due to the load of the illumination lamp 12, the main shaft 31 is always braked by the driven shaft brake mechanism 43 of the rotation transmission mechanism 40. There is. Therefore, the main shaft 31 suddenly turns suddenly during the descending and ascending, and the lamp 12
There is no danger of falling.

D. "Effect of Lifting Device" The lifting device 1 has the following effects. (1) When performing maintenance of the illuminating lamp 12, it is no longer necessary to install a scaffold below as in the conventional case. In the case of performing the same maintenance for several lighting devices 2, conventionally, it was necessary to move the scaffolding and install each scaffolding. However, by using the lifting device 1,
Maintenance can be performed easily and safely without taking time and labor. The lighting device 2 is particularly effective in places where it is difficult to install scaffolds such as stairs. (2) It is not an electric type that raises and lowers the lamp 12,
Since it is a device that operates manually, it does not require a current-carrying device or the like, so that the cost can be suppressed and the existing lighting device 2
Can be installed relatively easily. (3) The clutch mechanism 113 reliably connects and disconnects the rotation transmission of the hoisting drum 80 with respect to the hoisting drum 71 to prevent malfunction. (4) Since the winding drum 80 is always rewound by the mainspring 111, the unwinding length of the raising wire 81 is always short. Further, the descending wire 72 is wound up when the illuminating lamp 12 is housed in the casing 13, and is unwound downward only during maintenance. Therefore, both wires 72, 81 are completely unobtrusive in the normal state. (5) Since the main shaft 31 is constantly braked by the driven shaft brake mechanism 43 unless the drive shaft 42 of the rotation transmission mechanism 40 rotates, there is no risk that the illuminating lamp 12 will accidentally fall spontaneously. (6) When the illumination lamp 12 is housed in the casing 13,
The locking mechanism 120 automatically prevents the illuminating lamp 12 from falling and secures sufficient safety.

E. Modification of One Embodiment The form of the lifting device 1 is not limited to the one embodiment described above, and various modifications are possible. For example, as shown in FIG. 17, one suspension wire 33 is wound in a zigzag manner between the left and right winding drums 32 and the illumination lamp 12. With such a configuration,
The ascending / descending distance of the illumination lamp 12 per one rotation of the main shaft becomes long. As a result, the labor required for the operation can be reduced. In addition, in the case of FIG. 17, the power supply cable 2 of the fluorescent lamp 10 is used.
An extendable curl cord is used for 6, and the energizing cable 26 is wound along a portion of the suspension wire 33 on the right side in the drawing. When the illumination lamp 12 descends, the energizing cable 26 extends, and when it rises, it contracts and is housed in the casing 13. Therefore, the reel 27 for winding the energizing cable 26 is not necessary. Also, pin 12
Although not shown, the lock mechanism 120 composed of 1 and the attachment / detachment mechanism 122 is installed at an appropriate position so as not to interfere with the suspension wire 33.

The driven shaft braking mechanism 43 is composed of a torsion coil spring 52 and a sleeve 48.
The driven shaft brake mechanism of the present invention is not limited to this, but the rotation of the drive shaft 42 is transmitted to the driven shaft 41, but the rotation of the driven shaft 41 is restricted when rotational force is input to the driven shaft 41. Any structure may be used as long as it has a function to be performed.

F. Other Embodiments The lifting device 1 is one embodiment of the article moving device based on the present invention, and the lifting device 1 is not limited to this one embodiment and can be applied to various devices. An example of the embodiment will be described with reference to FIGS. In these drawings, only the main shaft 31 is shown as the constituent of the lifting device 1 and the others are omitted, but the main shaft 31 is rotated in the normal and reverse directions as in the above-described embodiment. Is operated.

[Other Embodiment 1] -Elevating device for different types of illuminating lamps: FIG. 18 shows an embodiment for elevating and lowering an illuminating lamp (article) 210 different in type from the illuminating lamp 12 of the above-mentioned one embodiment, The energizing cable 211 is wound around the main shaft 31. [Other Embodiment 2] -Elevating device for horizontal curtain: Fig. 19 The upper and lower wires 221 supporting the horizontal curtain (article) 220 are wound around the main shaft 31 and used for attaching and detaching the horizontal curtain 220. "Other Embodiment 3" -Curning sheet winding device: Fig. 20 A curing sheet (article) 231 covering the building 230 is attached to the spindle 31.
Then, the curing sheet 231 is wound and unwound.
Such a mechanism can be applied to, for example, a simple screen such as an OHP or a curtain for a theater. Other Embodiment 4 Ceiling Window Opening / Closing Device: FIG. 21 A hinge-rotating ceiling window (article) 240 is opened / closed by rotating the main shaft 31. [Other Embodiment 5] -Shutter opening / closing device: Fig. 22 A shutter (article) 25 that opens / closes by sliding in conjunction with a rack 251 connected to a pinion 250.
In the second opening / closing device, the drive shaft of the pinion 250 is the main shaft 31.

[0055]

As described above, according to the present invention, when the forward rotation operating strip wound around the first drum of the forward rotation operating mechanism is pulled, the first drum rotates in the forward direction, and the rotation thereof. The power is transmitted to the main shaft via the drive shaft of the rotation transmission mechanism, the driven shaft brake mechanism, and the driven shaft, and the article moves in the direction according to the normal rotation of the main shaft. Further, when the reversing operation strip wound around the second drum of the reversing operation mechanism is pulled, the second drum reversely rotates, and the rotation thereof causes the clutch mechanism, the drive shaft of the rotation transmitting mechanism, the driven shaft braking mechanism, The article is transmitted to the main shaft via the driven shaft, and the article moves backward in the direction corresponding to the reverse rotation of the main shaft. The reversing operation strip is always rewound to the rewinding mechanism together with the second drum.

According to the present invention having such an action, for example, the article is moved downward by pulling the forward operating strip only when necessary, and the article is returned to a predetermined upper position by pulling the reverse operating strip. By applying to
There is an effect that it is possible to perform work such as maintenance of articles at high places and opening / closing of windows at high places safely and easily without time and effort. Further, if a lock mechanism for removably fixing the article at a predetermined position is provided, careless movement is prevented and sufficient safety is secured.

[Brief description of the drawings]

FIG. 1 is a side view of a lighting device to which an elevating device according to an embodiment of the present invention is applied.

FIG. 2 is a front view of the same.

FIG. 3 is a perspective view of a main part of the lifting device.

FIG. 4 is a side sectional view of a rotation transmission mechanism and a lifting operation mechanism.

FIG. 5 is a sectional view of the same when viewed from below.

FIG. 6 is a view taken in the direction of arrow P in FIG.

FIG. 7 is a side sectional view of a rotation transmission mechanism.

8 is a cross-sectional view taken along the line QQ of FIG.

9 (a) is a side view and FIG. 9 (b) is a front view of the lowering drum.

10 (a) is a front view and FIG. 10 (b) is a side view of the clutch drum.

11 is a view taken along the line RR of FIG.

FIG. 12 is a side view (a) and a top view (b) of the pressing plate.

FIG. 13 is a side view of (a) of the bracket of the pressing plate,
(B) It is a front view.

14 is a cross-sectional view taken along the line S-S of FIG.

15 is a view taken along the line TT of FIG.

FIG. 16 is a view taken along the line UU of FIG.

FIG. 17 is a side view of a modified example of the embodiment.

FIG. 18 is a perspective view of another embodiment 1.

FIG. 19 is a front view of another embodiment 2.

FIG. 20 is a side view of another embodiment 3.

FIG. 21 is a side view of another embodiment 4.

FIG. 22 is a side view of another embodiment 5.

[Explanation of Codes] 1 ... Lifting device (article moving device), 2 ... Lighting (article),
31 ... Main shaft, 40 ... Rotation transmission mechanism, 41 ... Driven shaft, 42
... drive shaft, 43 ... driven shaft brake mechanism, 60 ... lift operation mechanism (movement operation mechanism), 61 ... descending operation mechanism (normal rotation operation mechanism), 62 ... raising operation mechanism (reverse operation mechanism), 71 ...
Hoisting drum (first drum), 72 ... descending wire (normal operation strip), 80 ... hoisting drum (second drum), 8
1 ... Ascending wire (reverse operation strip), 111 ... Mainspring (rewind mechanism), 113 ... Clutch mechanism, 120 ... Lock mechanism, A ... Forward rotation direction, B ... Reverse rotation direction.

Claims (2)

[Claims] 1. A main shaft which is rotatably supported and which is connected to an article and which is rotated to move the article.
A moving operation mechanism connected to the main shaft via a rotation transmission mechanism, wherein the rotation transmission mechanism includes a driven shaft connected to the main shaft, and a drive shaft for rotating the driven shaft, A driven shaft brake mechanism that is interposed between the drive shaft and the driven shaft and that transmits the rotation of the drive shaft to the driven shaft but that restricts the rotation of the driven shaft when a rotational force is input to the driven shaft. The moving operation mechanism includes a first drum connected to the drive shaft of the rotation transmission mechanism, and a first drum when wound around the first drum and pulled.
A normal rotation operating mechanism that rotates the drum in the normal direction, a second drum engaged with the first drum via a clutch mechanism that transmits only the reverse rotation, and the second drum. It has a reversing operation mechanism that is wound around a drum and reversely rotates the second drum when pulled, and a reversing operation mechanism that includes a rewinding mechanism that rewinds the reversing operation rule to the second drum. Article moving device. 2. The article moving apparatus according to claim 1, further comprising a lock mechanism for detachably fixing the article at a predetermined position.