JPH10119761A - Seat part reversing device for skier conveying lift - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cable driven type seat part reversing device for a skier conveying lift, lightweight and facilitating cable distribution without being a hindrance to oscillation of a frame. SOLUTION: This device is provided with a driving lever 3 rotatably provided at the upper part of a frame 2, inner cables of a pair of pull control cables 6, 7 with the end parts connected to the driving lever 3, and driven mechanism 5 to which the other end side of the control cables is connected. The driven mechanism 5 consists of a pulley 23 wound with the other ends of the inner cables mutually retrose, a driven lever 24 fixed to the pulley 23, and a connecting rod 25 interposed between the driven lever 24 and the frame 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat reversing device for a skier transport lift. More specifically, the present invention relates to a device for inverting a seat portion of a suspended seat in which a skier is not seated so that snow or the like does not accumulate, and for returning to a normal state before the skier is seated. .

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No.
Japanese Patent No. 298079 (conventional example 1) discloses a cable using a push-pull control cable as a cable connecting a driving side and a driven side. The device includes a lever with a roller rotatably provided at the upper end side of the frame of the suspension seat, a seat plate rotatably provided at the lower end of the frame, and a rear portion extending rearward from the pivot portion. And a push-pull control cable connected between the lever with roller and the end of the extension of the seat plate. A cable end rod is fixed to both ends of the push-pull control cable for transmitting power at a portion protruding from the conduit. In this device, the reciprocating rotation of the lever with roller is 1
It is transmitted to the end of the seat plate through the push-pull operation of the push-pull control cable of the book, and is converted into a reversing / reversing motion of the seat plate.

On the other hand, Japanese Patent Application Laid-Open No. 8-40257 (Conventional Example 2) discloses a method in which a link member that rotates substantially around a vertical axis is provided on the back side of the left and right ends of a frame, and the link member is free to rotate. The end and the center of the back of the seat plate are connected by a rod with a seat, and the free end of the link member is pushed and pulled by a cable end rod of a push / pull control cable that extends obliquely below the seat plate in a substantially horizontal plane. Are disclosed. This device constitutes a three-dimensional link mechanism by swingably supporting the cable end rod, etc.
Thereby, the mechanical parts such as the push-pull control cable, the link member, and the rod are accommodated as much as possible on the lower surface side of the seat plate.

[0004]

In each of the above-mentioned prior art devices, a push-pull control cable that transmits push-pull force in both directions with a single cable is used for power transmission from the upper part to the lower part of the seat. I have. Therefore, a large-diameter, large-load cable is used for the inner cable so as not to buckle when transmitting the force in the pushing direction. Therefore, the weight of the control cable and related members increases. Also, since the flexibility is low, the degree of freedom of wiring is low, and if the frame that hangs the seat is divided vertically and connected rotatably, the cable passing between them tends to hinder rotation. There is.

Further, in the device of the prior art 1, the cable end is provided on the side surface of the seat, and since the rotation angle of the seat surface is large, the angle between the cable end rod and the extension of the seat plate is small at the beginning of operation. Therefore, a large initial operation force is required. Therefore, it is necessary to use a larger push-pull control cable. On the other hand, in the device of the conventional example 2, the link mechanism is provided on the lower surface side of the seat plate, but a large force is required in the early stage of the operation.

Further, in any of the prior arts, the tip of the cable end rod or the link protrudes below the seat, which is extremely dangerous when the skier is involved.

A first technical object of the present invention is to provide a seat reversing device in which a cable and related members are lightweight, have a high degree of freedom in wiring, and do not hinder the rotation of a frame divided into an upper part and a lower part. And A second technical object of the present invention is to provide a seat plate reversing device for a skier transport lift that requires a small initial operation force. Further, a third technical problem of the present invention is to provide a seat reversing device having few protruding portions below a seat and high safety even when a skier is involved.

[0008]

SUMMARY OF THE INVENTION A seat reversing device according to the present invention reverses and reverses a seat in synchronism with the movement of a suspended seat of a lift for transporting a skier when the suspension seat approaches a platform. A reciprocatingly rotatable driving member provided at an upper portion of a frame of each hanging seat, a seat portion provided at a lower portion of the frame so as to be rotatable between a seating position and a reversing position, It has a pair of pull cables that are alternately pulled in accordance with the reciprocating rotation of the member, and a driven mechanism that reciprocates the seat in accordance with the alternate pull operation of the pull cables. .

The driven mechanism comprises a pulley reciprocatingly rotating within a range corresponding to a normal position and a reversing position of a seat, and a connecting rod interposed between a portion separated from the rotation center of the pulley and the frame. Preferably, the ends of the pair of pull cables are locked to pulleys, and the ends of the pair of pull cables are wound around the outer periphery of the pulley in opposite directions. More preferably, the pulley is rotatably attached to the seat, and one end of the connecting rod is rotatably connected to the pulley and the other end is rotatably connected to the frame.

[0010]

When the suspension seat approaches the getting on / off position and the driving member rotates in one direction, the first pulling cable is pulled by the driving member. The operation is transmitted to the driven mechanism by the first pull cable, and the seat is inverted. At this time, the second pulling cable is pulled by the driven mechanism, and then the second pulling cable can be pulled from the driving member side. When the driving member rotates to the opposite side in this state, the second pulling cable is pulled, and the first pulling cable is returned, and the seat portion returns to the original state.

As described above, in the seat reversing device of the present invention, 2
By alternately pulling the pull cables, the reciprocating motion of the driving member is remotely converted into the reversing / returning motion of the seat. Since the pulling cable does not transmit the force in the pushing direction, there is no problem of buckling like the pushing and pulling cable used in the conventional device, and therefore, a relatively thin cable can be used. Therefore, the transmission power is small,
Cables and related elements can be reduced in size and weight.

[0012] In the apparatus employing the above-described mechanism including the pulley and the connecting rod as the driven mechanism, the driving member is the first member.
When the pull cable is pulled, the pulley pivots in one direction, and the pulley and the connecting rod squeeze between the frame and the seat, so that the seat rises and finally reverses. When the driving member rotates in the opposite direction, the second pulling cable is pulled, the pulley rotates in the opposite direction, and the pulley and the connecting rod pull the seat and the frame toward each other. Therefore, the seat portion falls down to the front side, and is in a state where it can be seated. When a pulley is used in this manner, the rectilinear reciprocating motion of the pulling cable can be directly converted into a rotary motion, and there is no friction between the cable and the pulley, so that the conversion efficiency is high.

When the pulley is rotatably mounted on the seat and the connecting rod is rotatably connected at one end to the pulley and at the other end to the frame, the pulley can be hidden under the seat. The connecting rod also rises with the seat when the seat rises. Therefore, in both of the reversal and the reverse rotation of the seat, the number of protrusions below the seat is further reduced, and safety is enhanced.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a seat reversing device according to the present invention will be described below with reference to the drawings. FIG.
FIG. 2 is a schematic perspective view, partially cut away, showing an embodiment of the seat reversing device of the present invention, FIG. 2 is a schematic perspective view showing a driven mechanism of the device, and FIGS. 2 is a plan view and a front view of the driven mechanism, FIG. 4 is a side view of the driven mechanism in FIG. 2, and FIGS. 5a and 5b are schematic side views and schematic views showing another embodiment of the seat reversing device of the present invention, respectively. 6a and 6b are a plan view and a side view, respectively, showing another embodiment of the drive mechanism according to the present invention, and FIG. 7 is a schematic view showing still another embodiment of the seat reversing device of the present invention. FIG. 8 is a schematic perspective view showing the inverted state of the seat reversing device of FIG. 7, FIG. 9 is a schematic perspective view showing still another embodiment of the seat reversing device of the present invention, FIG.
a is a main part plan view of the apparatus of FIG. 9, FIGS. 10b to 10d are side views showing the operation of the apparatus, FIG. 11a is a main part plan view of the apparatus of FIG. 9, and FIGS. It is a side view which shows the effect | action of the apparatus.

The seat reversing device A shown in FIG. 1 comprises a frame 2 suspended on a rope 1, a drive lever 3 rotatably provided on the upper part of the frame 2, and a lower part of the frame 2 rotatably. A seat 4 to be attached, a driven mechanism 5 provided on the back side of the seat 4, a drive lever 3 and a driven mechanism 5
And a pair of pulling control cables 6 and 7 connecting between them. Reference numeral 8 indicates frame 2.
The frame 2 and the seat 4
And the backrest 8 constitute a hanging seat. FIG.
In the figure, a protective handrail and a footrest provided rotatably with respect to the frame 2 are omitted. In the present embodiment, the drive lever 3 is a drive member.

In the present embodiment, the frame 2 is composed of an L-shaped suspension frame 2a and an annular holding frame 2b which is swingably suspended below the suspension frame 2a. A rotating shaft 10 is provided in a middle portion of the hanging frame 2a in a direction orthogonal to the direction in which the rope 1 extends in a plan view, and the driving lever 3 is rotatably attached to the rotating shaft 10. . At one end or both ends of the drive lever 3, a roller 12 which comes into contact with a cam plate 11 provided at the getting on / off base is rotatably mounted. The cam plate 11 and the drive lever 3 form a drive mechanism for the control cable. The drive lever 3 has a rotating shaft 1
The ends of the inner cables of the pair of pull control cables 6 and 7 are rotatably connected to the pair of pull control cables 6 and 7 by rope end fittings or the like at positions symmetrical with respect to 0.

The pull control cables (pull control cables) 6 and 7 are, as shown in FIG.
Flexible inner cable 6a, 7a made of metal stranded wire or the like
And flexible conduits 6b and 7b made of metal windings or the like for slidably guiding the inner cable. Inner cable 6 of those pull control cables
Although a and 7a cannot transmit the force in the pushing direction, they can be made thinner because there is no fear of buckling, so that not only the inner cable itself but also the entire pulling control cable including the conduit can be controlled by pushing and pulling. Higher flexibility than cable (push-pull control cable).
Therefore, the rotation between the suspension frame 2a and the holding frame 2b is hardly obstructed.

On the other hand, as shown in FIG. 2, the driven mechanism 5 on the back side of the seat 4 has a U-shaped bracket 21 made of a metal plate or the like fixed to the lower side of the seat 4, and the bracket 21 Shaft 22 whose both ends are supported by
A pulley 23 housed therein and rotatably provided around the rotation shaft 22, a plate-like driven lever 24 fixed to one surface of the pulley 23 and protruding radially outward, a tip of the driven lever 24, and the holding frame 2 b And a connecting rod 25 interposed between the horizontal rails.

As further shown in FIGS. 3a and 3b,
The ends of the conduits 6b, 7b of the pair of pull control cables 6, 7 are fixed to the base of the bracket 21, and the inner cable 6a extending from the conduits 6b, 7b.
And 7a are wound in opposite directions while being inserted into a guide groove 27 formed around the pulley 23, and a cable end fitting 28 at the end is locked in a locking groove 29 of the pulley 23. The driven lever 24 is fixed to the back surface of the pulley 23 with two bolts 30. The stud side (ball side) of the ball socket joints 31 and 32 are provided on the distal end side of the driven lever 24 and the holding frame 2b, respectively.
31a and 32a are fixed, and socket sides 31b and 32b are attached to both ends of the connecting rod 25.

The range of rotation of the driven lever 24 is between P1 and P2 shown in FIG. 3B. Reference symbol P1 corresponds to a state where the seat portion 4 indicated by a solid line in FIG. 2 is tilted forward, and P2 corresponds to a state where the seat portion 4 indicated by an imaginary line in FIG. 2 is inverted. The state indicated by the solid line in FIG. 3B (reference numeral P3) corresponds to a state in which the seat portion 4 in FIG. Further, the connection position (rotation center) K2 between the connection rod 25 and the holding frame 2b is on the front side and below the rotation center Q of the seat 4 as shown in FIG. Therefore, in a seatable state (P1) where the seat portion 4 is tilted forward, the driven lever 24 and the connecting rod 25 intersect at an acute angle.

The seat reversing device A constructed as described above
The roller 12 engages with, for example, the lower surface of the cam plate 11 in FIG. 1 when the suspension seat moves from the platform on the top of the mountain to the foot of the mountain (in the direction of arrow F) in the normal state in which the seat portion 4 is lying down. . As a result, the drive lever 3 falls down in the direction of the arrow N1, the inner cable 6a of the first pull cable 6 is pulled, and the pulling force of the inner cable 7a of the second pull cable 7 is relaxed. Therefore, the pulley 23 in FIG. 3B rotates in the direction of the arrow M1, and the driven lever 24 rotates in the same direction from the position of the reference numeral P1. At this time, since the distance L between the rotation center K1 of the driven lever 24 and the rotation center K2 of the connecting rod 25 becomes large,
As shown in FIG. 7, the driven lever 24 and the connecting rod 25 are stretched between the seat portion 4 and the horizontal rail of the holding frame 2b, so that the seat portion 4 rises around the rotation center Q in the direction of the arrow R1. The tension applied to the inner cable 6a at that time varies depending on the weight of the seat, the diameter of the pulley 23, and the like.
In a practical range, it can be set to about 300 to 500 N, which is much smaller than that of a conventional push-pull cable.

That is, in the case of a conventional push-pull control cable, a pulley-type engagement system cannot be used, so that a lever-link-type engagement in which a rotatable lever is pushed / pulled by a cable end rod is used. At this time, the operation force F becomes F = T / (R-sin φ) with respect to the necessary rotation torque T. Where R
Is the arm length of the lever, and φ is the angle between the lever and the cable end rod (link). And the initial operation is φ
Is significantly smaller or larger than 90 °,
A relatively large initial operating force is required.

Then, a vertically rising state P3 in FIG.
After that, the seat portion 4 further falls down in the direction of the arrow R1 by its own weight, and is in the inverted state of P2. And then the seat 4
Even if the driving lever 3 moves too far over the cam plate 11 and no tension is applied to the inner cable 6a of the first pulling control cable 6, the seat portion 4 is turned over as it is. I have. As the seat 4 reverses and returns, the lower ends of the pair of pull control cables 6 and 7 routed along the frame 2 swing, but the pull control cables 6 and 7 are flexible. , And does not hinder the rotation of the seat 4.

It is preferable that the engagement between the cam plate 11 and the roller 12 is not activated when a user is sitting on the seat 4. That is, the user may sit on the lift going from the summit to the foot of the mountain, but in this case, the seat does not turn over due to the weight of the user. However, in this case, an excessive force is applied to the inner cable 6a. Therefore, for example, by providing a mechanism for lowering the position where the roller 12 passes by the weight applied to the suspension seat in advance, the cam plate 1 is provided.
It is preferable to avoid the engagement between the roller 1 and the roller 12.

Next, when the suspension seat arrives at the boarding / alighting base at the foot of the mountain, the drive lever 3 is engaged with, for example, a cam plate (not shown) contacting from below. The drive lever 3
Falls in the direction of arrow N2, the inner cable 7a of the second pull control cable 7 is pulled, and the pulling force of the inner cable 6a of the first pull control cable 6 is relaxed. As a result, the pulley in FIG.
4 rotate in the same direction. Accordingly, the distance L between the rotation center K1 of the driven lever 24 and the rotation center K2 of the connecting rod 25 is determined.
Is reduced, and the seat portion 4 is attracted to the front side by the reaction force, and falls down in the direction of the arrow R2 in FIG. 4 so that the user can be seated.

The same cam plate 11 as in the case of the peak may be provided and placed at the position from the peak to the peak. In that case, even when the suspension seat is headed to the mountaintop side in the empty state, it can be inverted, and snow does not accumulate. Also in this case, when the user is seated, it is preferable to prevent the engagement between the cam plate 11 and the roller 12 in advance.

In the above embodiment, as shown in FIG. 4, when the seat 4 is tilted forward, not only the bracket 21 holding the pulley 23 but also the connecting rod 25 approaches the lower surface of the seat 4. Hiding. Therefore, there is no projection in the space indicated by the reference symbol W below the seat 4. Moreover, in this embodiment, even when the seat 4 is upright and inverted, the connecting rod 25 is close to the lower surface of the seat 4. Therefore, even if the skier falls down and gets caught under the seat 4, there is almost no protrusion on the lower surface side of the seat, so that the safety is high.

However, the seat reversing device of the present invention is not limited to such an embodiment, and a pulley 23 is rotatably provided on the frame 2 side, and a driven lever 24 fixed to the pulley 23 or the pulley and a seat 4, the connecting rod 25 may be interposed. Also in this case, the driven lever 24 rotates in accordance with the rotation of the pulley 23, and the driven lever 24 and the connecting rod 25 are connected to the seat 4 and the holding frame 2
The action of stretching and pulling between the horizontal rails of b is the same. In the case of this embodiment, the connecting rod is always hidden close to the lower surface of the seat, but the pulley 23
Is attached to the horizontal rail of the holding frame 2b,
It is preferable to provide a cover for safely covering the bracket holding the pulley, particularly a cover having elasticity.

In the above embodiment, the center of rotation of the pulley 23 is substantially perpendicular to the seat 4, but it may be parallel or concentric with the center Q of rotation of the seat 4 if desired. In that case, for example, the connecting rod 25 can be omitted and the pulley 24 can be directly connected to the seat portion 4.
Further, a four-node link mechanism that rotates in a vertical plane using another connecting link may be used. Further, the connecting rod 25 may extend obliquely with respect to the rotation center Q of the seat 4. The connecting rod is not limited to a straight one, and may be a curved one.

Next, another embodiment of the driving mechanism according to the present invention will be described with reference to FIGS. 5A and 5B. The seat reversing device B shown in FIG.
Is provided with a drive pulley 36 provided on the upper part. The ends of the inner cables 6a and 7a of the first and second pull control cables are locked to the drive pulley 36, and the vicinity of these ends is wound around the drive pulley 36 in opposite directions. Further, a rubber roller is fixed to the side of the driving pulley 36 on the other side in the drawing so as to rotate concentrically with the driving pulley 36 and integrally therewith. Instead of a cam plate, a guide portion comprising a friction rail 37 for abutting against a rubber roller to roll the rubber roller, and a roll row 38 arranged to face the friction rail 37 is provided on the ceiling of the boarding / alighting base. 39 are provided.

When the suspension seat shown in FIG. 5A advances in the direction of arrow F, the upper surface of the rubber roller comes into contact with the friction rail 37.
At this time, the lower surface of the rubber roller is supported by the roll row 38, so that the rubber roller and the friction rail 37 are firmly in contact with each other. When the suspension seat further moves forward in this state, the rubber roller rotates counterclockwise. Thereby, the inner cable 6a of the first control cable is pulled, and the inner cable 7a of the second control cable is unwound. Therefore, the seat 4 is inverted by the operation of the driven mechanism 5.

In order to return the seat portion 4 to the position where it can be seated, for example, as shown in FIG. 6B, a guide portion 39a having a roll row 38 arranged on the upper side and a friction rail 37 arranged on the lower side is used. Such a guide part 39a is provided at the entrance of the boarding base at the foot of the mountain. When the suspension seat advances in the direction of arrow F, the lower surface side of the rubber roller contacts the friction rail 37 and the upper surface side is supported by the roll row 38, as in the case described above.
The rubber roller rotates clockwise. As a result, the inner cable 7a of the second control cable is pulled, and the seat portion 4 returns.

In the above-described drive mechanism, a friction roller made of another type, for example, made of synthetic resin may be used instead of the rubber roller. Further, by changing the diameter of such a friction roller or the drive pulley 36, it is possible to freely set the speed at which the seat portion is inverted / returned and the strength with which the inner cable is pulled.

The drive mechanism 40 shown in FIGS. 6a and 6b
Is provided with a pair of left and right bell crank type drive levers 41 and 42 at the upper part of the frame 2. Each drive lever 41,
Reference numeral 42 has a horizontal portion 43 extending in the horizontal direction and a vertical portion 44 extending upward from the rear end. The corner portion is rotatably supported by the shaft 2 with respect to the frame 2. The inner cable 6a of the first control cable is connected to the distal end of the horizontal portion 43 of the first drive lever 41, and the inner cable 7a of the second control cable is connected to the distal end of the horizontal portion 43 of the second drive lever 42. .

A contact roller 46 is provided on the ceiling of the boarding base at a position where it comes into contact with the vertical portion 44 of one of the drive levers 41 and 42 so as to be rotatable about a horizontal axis 47. In the example shown in FIG. 6A, the contact roller 46 is provided at a position where it comes into contact with the first drive lever 41 in order to pull the inner cable 6 a of the first pulling control cable to invert the seat. In addition, in order to return the seat part,
As shown by the imaginary line, a contact roller 48 that contacts the second drive lever 42 may be provided.

In the driving mechanism 40 configured as described above, when the suspension seat advances in the direction of arrow F, the vertical portion 44 of the first drive lever 41 comes into contact with the contact roller 46, and
The drive lever 41 rotates counterclockwise. Thereby, the inner cable 6a of the first pulling control cable 6 is pulled, and the seat 4 is turned over. In this state, the inner cable 7a of the second pulling control cable is pulled by the driven mechanism, so that the second drive lever 42 rotates clockwise, and the second drive lever 41 is ready to be operated next. Then, when the second drive lever 42 abuts on the abutment roller 48, the seat portion 4 is returned through the inner cable 7a of the second pulling control cable.

The drive mechanism 50 of the seat reversing device C shown in FIGS. 7 and 8 includes a drive pulley 51 rotatably provided on the upper portion of the frame 2 and a drive lever or abutment extending in a radial direction from the drive pulley 51. And a lever 52.
The contact lever 52 has a "-" shape bent in the middle, and is not provided with a roller. Then, similarly to the embodiment of FIG. 5, the inner cable 6a of the first control cable and the inner cable 7a of the second control cable are attached to the drive pulley 51.
Are locked and wound in opposite directions to each other. In this embodiment, the rotation center of the driving pulley 51 is perpendicular to the rope 1 in plan view. However, it is also possible to run parallel to the rope 1 and to escape to the side. Also, the reason why the tip of the contact lever 52 is bent in the shape of a letter “
This is to prevent interference with the rotation axis when rotating in the seating direction (clockwise). Therefore, the contact lever 52
It is not necessary to bend as long as the rotation angle is appropriately set.

On the other hand, the abutment lever 52 engages with the abutment lever 52 as the suspension seat advances, on the ceiling of the boarding / alighting base.
Reversing (forward rotation) in which is rotated clockwise or counterclockwise
And a reverse engagement mechanism 54 (FIG. 8). Returning engagement mechanism 53 shown in FIG.
Is a bracket 55 attached to the ceiling, a control lever 56 rotatably provided on the bracket 55, a contact roller 57 rotatably provided at the tip of the control lever 56, and a control lever 56 which is always A spring 58 for urging the distal end side to be lowered. The contact roller 57 of the control lever 56 may be omitted, and a roller may be provided for the contact lever 52.

In this embodiment, the control lever 5
The center of rotation of 6 extends in the left-right direction perpendicular to the traveling direction of the suspension seat in plan view. Further, a motor M1 that can be remotely operated is provided as a driving element for forcibly turning the control lever 56 against the urging force of the spring 58 so as to raise the distal end thereof. A speed reducer is interposed between the motor M1 and the control lever 56, and an electromagnetic clutch for turning on and off the transmission path as necessary. However, other driving elements such as an electromagnetic actuator can be employed instead of the motor M1.

In the driving mechanism 50 and the reverse engagement mechanism 53 configured as described above, when the suspension seat advances in the direction of arrow F and passes below the reverse engagement mechanism 53,
The upper end of the contact lever 52 at the position of the imaginary line contacts the lower surface of the contact roller 57, and the tip side of the contact lever 52 rotates downward. As a result, the drive pulley 51 rotates clockwise in FIG. 7, pulls the inner cable 7a of the second pulling control cable, and causes the seat portion 4 to rotate forward (return) from the inverted state as described above.

In a normal case, the conduction path between the motor M1 and the control lever 56 is cut off. Therefore, when the article 4 rests on the front frame 2d (see FIG. 8) supporting the seat 4, when the return of the seat 4 is hindered, the control lever 56 is moved so that its front end is raised. Rotate and escape. Then, after the suspension seat has passed, the control lever 56 returns to the original state by the urging force of the spring 58. Therefore, the control lever 56 and the contact lever 5
2. No excessive force is applied to components such as the control cable, and no damage is caused.

If the operator finds such an obstacle, or if there is no passenger and there is no need to return, the motor M1 is operated by remote control in advance to move the control lever 56 in a direction to escape. That is, it can be rotated upward. In this case, the transmission clutch is engaged to transmit the rotation of the motor M1 to the control lever 56. Thereafter, the electromagnetic clutch is disengaged, and the control lever 56 may be returned to the original position by the urging force of the spring 58.

The reversing engagement mechanism 54 shown in FIG. 8 includes a bracket 60 mounted on the ceiling and a bracket 6.
0, a control lever 61 for reversal, which is rotatably provided, a contact roller 62, which is rotatably provided at the distal end of the control lever 61, and a spring 63, which constantly urges the control lever 61 so that the distal end is raised. And The reversing engagement device 53 is also provided with a motor M2 for rotating the control lever 61 against the urging force of the spring 63.

When the suspension seat advances in the direction of arrow F and passes below the reversing engagement mechanism 54, the contact lever 52
Of the contact lever 62 contacts the upper surface of the contact roller 62, and pushes the distal end of the contact lever 52 upward. As a result, the drive pulley 51 rotates counterclockwise, pulls the inner cable 6a of the first pulling control cable, and reverses the seat portion 4 from the seated reversible state to the rear.

As in the case where there is a passenger in the seat 4,
When the inversion of the control lever 61 is prevented, the control lever 61 rotates so that its front end side is lowered and escapes. Then, after the suspension seat passes, the control lever 61 returns to the original state by the urging force of the spring 63. Therefore, parts such as the control lever 61 and the control cable are not damaged. When it is not necessary to reverse the seat portion, for example, when a passenger descends from the top of the mountain, the operator operates the motor M2 in advance to rotate the control lever 61 in a direction to escape, that is, downward. . In this case, the electromagnetic clutch is engaged to transmit the rotation of the motor M2 to the control lever 61. When the electromagnetic clutch is disengaged, the front end of the control lever 61 rises again by the urging force of the spring 63.

The driving mechanism 70 of the seat reversing device D shown in FIG.
Is provided with a so-called L-shaped contact lever 71 in a form in which two contact levers 52 of the drive mechanism 50 of the seat reversing device C in FIG. Other points, such as L
A driving pulley 51 rotated by a mold contact lever 71,
The inner cable 6a of the first control cable for inversion and the inner cable 7a of the second control cable for reverse rotation are substantially the same as the drive mechanism 50 described above. A reversing engagement mechanism 73 that is provided on the ceiling of the boarding base and rotates the L-shaped contact lever 71 counterclockwise as the suspension seat advances.
Employs a mechanism substantially the same as the reverse rotation engagement mechanism 53 of FIG. 7, that is, a mechanism in which a spring 58 biases the contact roller 57 downward. Therefore, the same parts as those in FIG. 7 are denoted by the same reference numerals, and description thereof will be omitted. Only different parts will be described below. In this embodiment, the L-shaped contact lever 71
7, the same mechanism as the reversing engagement mechanism 53 in FIG. 7 can be employed for the reverse rotation engagement mechanism 74 for driving the seat portion 4 in the seating direction. (FIGS. 10b and 11b).

When the driving mechanism 70 reverses the seat 4 in the seating position, the suspension seat approaches the reversing engagement mechanism 73 as shown in FIGS. 10A and 10B, and the L-shaped contact lever 71 The first arm 71a on the front side contacts the contact roller 57. When further proceeding, as shown by the imaginary line in FIG.
Then, the seat 4 is turned through the inner cable 6a of the first control cable shown in FIG. At this time, since the seat 4 is rotated to the vertical position, it is necessary to sufficiently rotate the L-shaped contact lever 71. Then the seat 4
The L-shaped contact lever 71 is rotated via the inner cable 7a of the second control cable 7 with the weight of. Then, the first arm 71a on the front side is inclined rearward, and the second arm 7a on the rear side is tilted.
1b is obliquely upward. After the L-shaped contact lever 71 rotates, the L-shaped contact lever 71 passes over the contact roller 57.

When a passenger is seated on the seat 4, FIG.
As shown in FIG.
Escape upward against the urging force, and pass the L-shaped contact lever 71 as it is so that the contact roller 57 gets over the mountain. Thereafter, the spring 58 returns with the urging force. If not intentionally inverted, as shown in FIG.
The control lever 56 is turned upward by driving the motor M1 to pass the L-shaped contact lever 71 as it is.

Next, when the seat portion 4 in the inverted state is to be returned, the suspension seat approaches the engagement mechanism 74 for the reverse rotation as shown in FIGS. 11A and 11B, and the second arm 71b of the L-shaped contact lever 71 is moved. Contacts the contact roller 57. 11B, the L-shaped contact lever 71 rotates clockwise to return the seat 4 to the normal state via the inner cable 7a of the second control cable 7. Reverse. At that time, the seat 4 only needs to be slightly rotated to the vertical position, and then the seat 4 falls down due to its weight. As a result, the L-shaped contact lever 71 itself is connected to the first control cable 6.
Is pulled by the inner cable 6a and rotates as it is. Thereby, as shown in FIG. 10B, the first arm 71a tilts forward and downward, and the second arm 71b returns to the original state where the second arm 71b tilts obliquely downward.

When a reverse operation cannot be performed because an object is on the frame 2, the control lever 56 escapes upward as shown in FIG. When the reverse rotation is not intentionally performed, the control lever 56 is rotated upward by the drive of the motor M1 as shown in FIG. 11D to avoid the contact between the contact roller 57 and the L-shaped contact lever 71. .

In the seat reversing device D employing the driving mechanism 70, the same reversing and reversing engagement mechanisms 73 and 74 can be used. Further, there is an advantage that the whole mechanism is simple and troubles hardly occur. FIG. 9
In the embodiment, the contact lever, the L-shaped contact lever, the drive lever, the drive pulley, and the cable are arranged inside the frame, but it is also an effective method to arrange them outside.

[0052]

According to the seat reversing device of the present invention, since the driving member and the driven mechanism on the seat side are connected by a pair of flexible pulling control cables, the weight is light and the wiring is easy. Moreover, it does not disturb the swinging of the upper and lower parts of the frame. A mechanism employing a pulley and a connecting rod as the driven mechanism has a small force to be applied in the early stage of the operation, so that the reversing operation and the reversing operation are smooth. In a device in which a pulley is attached to the seat and the connecting rod is interposed between the pulley and the frame, there is no protrusion below the seat, so that the safety is high for the user.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing one embodiment of a seat reversing device of the present invention.

FIG. 2 is a schematic perspective view showing a driven mechanism of the device.

3a and 3b are a plan view and a front view, respectively, of the driven mechanism of FIG. 2 in a state where a seat is inverted.

FIG. 4 is a side view of the driven mechanism of FIG. 2;

5a and 5b are a schematic side view and a schematic side view, respectively, showing another embodiment of the driving mechanism in the seat reversing device of the present invention.

FIGS. 6A and 6B are a plan view and a side view, respectively, showing still another embodiment of the drive mechanism in the seat reversing device of the present invention.

FIG. 7 is a schematic perspective view showing still another embodiment of the seat reversing device of the present invention.

FIG. 8 is a schematic perspective view showing the inverted state of the seat reversing device of FIG. 7;

FIG. 9 is a schematic perspective view showing still another embodiment of the seat reversing device of the present invention.

10a is a plan view of a main part of the apparatus of FIG. 9, and FIGS. 10b to 10d are side views each showing the operation of the apparatus.

11a is a plan view of a main part of the device of FIG. 9, and FIGS. 11b to 11d are side views each showing the operation of the device.

[Description of Signs] A Seat Inverting Device 1 Rope 2 Frame 3 Drive Lever 4 Seat 5 Follower Mechanism 6 First Pull Control Cable 7 Second Pull Control Cable 11 Cam Plate 23 Pulley 24 Follower Lever 25 Connecting Rod B Seat Reverse Device 36 Drive pulley 40 Drive mechanism 41 First drive lever 42 Second drive lever C Seat reversing device 50 Drive mechanism 51 Drive pulley 52 Contact lever D Seat reversing device 70 Drive mechanism 71 L-shaped contact lever

 ──────────────────────────────────────────────────続 き Continuing from the front page (71) Applicant 596159625 Shinei Co., Ltd. 3-8-12 Fukushima, Fukushima-ku, Osaka-shi (72) Inventor Hideki Tanaka 1-12-28 Sakaemachi, Takarazuka-shi, Hyogo Japan Cable System (72) Inventor Yasuro Maruyama 7155-24, Matsumoto, Imai, Matsumoto, Nagano Prefecture Inside Maruyama Iron Works, Ltd.

Claims (3)

[Claims] 1. A device for reversing and reversing a seat portion in synchronism with the movement of a suspended seat of a lift for transporting a skier when approaching a boarding / leaving base. A reciprocatingly rotatable drive member provided, a seat portion rotatably provided at a lower portion of the frame between a seating position and a reversing position, and a pulling operation alternately performed according to the reciprocating rotation of the drive member. A seat reversing device for a skier transport lift, comprising: a pair of pull cables to be driven; and a driven mechanism for reciprocatingly rotating the seat in response to alternate pull operations of the pull cables. 2. A pulley reciprocatingly rotating within a range corresponding to a normal position and a reversing position of a seat, a connecting rod interposed between a portion of the pulley separated from a rotation center and a frame. The end of the pair of pull cables is respectively locked to a pulley, and the vicinity of each end of the pair of pull cables is wound around the outer circumference of the pulley in opposite directions. Seat reversing device. 3. The seat reversing device according to claim 2, wherein the pulley is rotatably mounted on the seat, and one end of the connecting rod is rotatably connected to the pulley and the other end is rotatably connected to the frame.