JP4097750B2 - Backboard lock mechanism of cable chair chair type carrier - Google Patents

Description

[0001]
[Technology to which the invention belongs]
The present invention relates to a structure of a chair type carrier used in a ski lift of a cableway.
[0002]
[Prior art]
FIGS. 7 and 8 show the configuration of a two-seat chair type carrier for a general ski lift that has been most frequently used in ski resorts.
[0003]
The carrier 50 has a gripper 51 that grips the rope 60 on its head, and an upper end of a suspender 52 formed by bending a steel pipe into a “J” shape in the front view of FIG. Pivot. A carrier frame 54 formed by bending a steel pipe into a substantially gate shape in front view of FIG. 8 is suspended from the suspender 52 through a joint plate 53. A lower part of the carrier frame 54 is provided with a seat plate 56 and a back plate 57 on which passengers and skiers can sit. Further, handrails 55 and 55 for preventing the skier from falling are fixed to the carrier frame 54 located on both sides of the seat plate 56.
[0004]
[Problems to be solved by the invention]
However, in the conventional chair-type transporter 50, the back plate 57 of the seat on which a passenger or a skier sits is fixedly attached to the transporter frame 54. Therefore, when the transporter 50 is operated in snowy weather, the empty transporter 50 on which the skier is not on snows the seat plate 56 and the back plate 57 during operation of the track. Accordingly, at the stop where the skier gets on and off, the driver is working to wipe off the snow adhering to the seat plate 56 and the back plate 57 so as not to give uncomfortable feeling to the next skier.
[0005]
In recent years, the chair type portable device used in the automatic circulation type cableway has conventionally used a large chair type portable device of two to four or six people. In this way, if the number of passengers increases with a chair-type transporter, the width of the transporter will increase, and of course, the width of the seat plate and the back plate will also increase, so the problem of the snow removal work of the driver is increased accordingly. there were. In order to solve this problem, an object of the present invention is to provide a transporter having a structure that prevents a snowfall on a seat plate and a back plate as much as possible, particularly with a large chair-type transporter.
[0006]
[Means for Solving the Problems]
A ski lift chair-type transporter is a transporter with a back plate pivotally supported between two positions of "standing position" and "falling position" on a transporter frame,
A support bracket fixed to the carrier frame and pivotally supporting a safety bar;
A support beam supported by the support bracket so as to be able to be twisted and energized by interposing an elastic ring on the same axis as the pivot core of the safety bar;
A hook fixed to the support beam;
The back plate,
A state in which the elastic ring is torsionally acted on by the hook and locked in the “standing position”;
It is possible to switch to a state in which the hook is unlocked and pivotable between the “standing position” and the “falling position”.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The present invention relates to the construction of a large chair-type carrier for a four-seater or six-seater, particularly a ski lift installed at a ski resort.
[0008]
The back plate of the seat on which the skier sits is pivotally supported at one end to the carrier frame so that it can be raised and lowered in two positions, “standing position” and “falling position”. Aside from this, a safety bar is urged by a torsion bar on the chair frame of the chair type carrier and pivotally supported. When the seated skier pulls the safety bar down by hand, the safety bar surrounds the seated skier at a height around the abdomen and prevents the skier from falling. On the other hand, if the skier jumps up to the head by hand, the enclosure disappears and it is possible to get on or off the vehicle. At that time, the operation force of the skier is supplemented by the torsional reaction force of the torsion bar.
[0009]
A support beam having a length substantially equal to the entire width of the carrier frame is attached to the pivot shaft of the safety bar by inserting a bush on one end side and an elastic ring on the other end side. The support beam is fixed by holding hooks at two locations.
[0010]
When the back plate is set to the “standing position” in this way, the free end side of the back plate is locked to the hook on which the torsional reaction force of the elastic ring acts to maintain the “standing position”. On the other hand, if the elastic plate is removed against the torsional reaction force of the elastic ring from the free end of the back plate, the back plate can be brought down to the “falling position”. When the back plate is tilted in this way, the surface of the back plate comes into contact with the surface of the seat plate. Since the back side of the back plate faces upward, it is possible to prevent snow from landing on the surface of the seat plate and the back plate, that is, the surface on which the skier rides.
[0011]
【Example】
Details of the embodiments of the present invention will be described below with reference to the drawings.
[0012]
FIG. 1 shows a side view of a chair type portable device 1 in which a back plate lock mechanism is incorporated in the chair type portable device 1 of the present invention, and FIG. 2 shows a front view of the chair type portable device 2 of FIG.
[0013]
The carrier 1 is roughly divided into a grinder 2, a suspender 3, and a carrier frame 5. The upper end side of the suspender 3 is pivotally attached to the grinder 2 from the upper part of the figure so as to be swingable in the traveling direction of the carrier 1. As shown in FIG. 2, the suspender 3 is formed by bending a square or round steel pipe into a substantially “J” shape. A transporter frame 5 is suspended by a joint plate 4 on a horizontal portion below the suspender 3. Between the joint plate 4 and the carrier frame 5, a buffer structure proposed by the applicant of the present application in Japanese Utility Model Laid-Open No. 62-170370 “Buffer structure of cable runner” is interposed.
[0014]
The carrier frame 5 is called a normal bail type or loop type using, for example, a square or round steel pipe in a front view, and is endless in a front view and is formed in a deformed hexagonal shape slightly bulging near the upper portion of the back plate 12. The region inside the deformed hexagon is a portion on which the skier rides.
[0015]
As shown in FIGS. 2 and 3, support brackets 13, 13 are sandwiched between round steel pipes forming the carrier frame 5 on both sides of the lower part of the carrier frame 5 and fixed with bolts 35, 35 and bolts 35, 35. .
[0016]
Next, FIG. 4 shows the safety bar 10 and the pivot core 40 of the hooks 25, 25 which are the main part of the present invention in a cross-section in the direction of the arrow AA shown in FIG. First, the flange portion 13a of the support bracket 13 on the right side of the figure includes the bearing 18 on the pivot core 40 from the inside of the left side of the figure, and is clamped between the bearing case 20 and the bolts 37 and 37. Next, the support shaft 16 is rotatably supported by the bearing 18, and a support 14 on one side is fastened and fixed in the axial direction by a nut 17 at a position protruding to the right side of the drawing from the flange portion 13a.
[0017]
Further, the torsion bar 24 having a square cross section on the pivot core 40 is rotated through the center of the shaft portion 20a of the bearing case 20 in which the right end portion includes the bearing 18 in the support bracket 13 on the right side of the drawing. The left end portion is supported in a constrained state, and the left support shaft 15 is inserted into and supported by the center portion in the same manner in a state where rotation is constrained. Accordingly, when the skier who rides on the chair-type transporter 1 manually rotates the pivot core 40 around the pivot core 40, only the left end side of the torsion bar 24 rotates together with the support shaft 15.
[0018]
When the safety bar 10 is in the jumping position 10B, the torsion bar 24 is mounted so as to be in a free state where it cannot be twisted. If the safety bar 10 is rotated to the protection position 10A, the moment due to the weight of the safety bar 10 Acts on the torsion bar 24 and is twisted. Therefore, the operating force when the skier flips the safety bar 10 from the protection position 10A to the jumping position 10B is supplemented by the reaction force of the torsion bar 24 that is twisted and biased.
[0019]
Further, the right end side of the hollow cylindrical support beam 22 is inserted into and supported by the shaft portion 20a of the right bearing case 20, and the left end side of the support beam is supported by the left support shaft 15. The bush 23 is inserted and supported by being interposed.
[0020]
Here, the above-described elastic ring 21 is configured by injecting an elastic body such as a rubber material between an outer ring and an inner ring made of steel, for example, and is used by twisting and energizing like a torsion bar. It is. The bush 23 is the same component as the sliding bearing.
[0021]
Further, a cylindrical collar 29 formed so as to substantially fill the space formed by the torsion bar 24 and the support beam 22 is attached to the torsion bar 24. Then, as shown in FIG. 5, the support beam 22 is hooked at two locations with hooks 25, 25 between the main bodies 26, 26 and the holding blocks 27, 27 so that the two bolts 28, 28 and 28, Tighten at 28 to secure.
[0022]
FIG. 3 is a partially enlarged side view of the chair-type transporter 1 of FIG. The back plate 12 is pivotally attached to the lower end of the transporter frame 5 by pins 11 and 11 which are fixedly attached to both sides and extend freely. For example, when the ski lift is in business operation, when the back plate 12 is in the standing position 12A, the engagement portion 12a formed in the shape of a fishhook in a side view at the tip of the back plate 12 is provided at two locations in the above configuration. Engages with the provided hooks 25, 25.
[0023]
When the hooks 25 and 25 are engaged with the back plate 12, the torsional reaction force of the elastic ring 21 to which the hooks 25 and 25 are fixed acts in the direction of the arrow 31, and the hooks 25 and 25 come off the back plate 12. I am trying not to. That is, when the back plate 12 is not in trouble, it is prevented from falling from the standing position 12A to the falling position 12B. The torsional reaction force by the elastic ring 21 when the hooks 25, 25 are engaged with the back plate 12 by changing the angles of the locking portions 26 a, 26 a when the hooks 25, 25 are fixed to the support beam 22. Can be adjusted.
[0024]
On the other hand, for example, when the ski lift is moved for inspection or work other than sales, the hooks 25 and 25 shown in FIG. 6 are shown by solid lines against the torsional reaction force of the elastic ring 21 described above. It is forcibly turned in the direction of the arrow 30 to be disengaged from the engaging portion 12a of the back plate 12 and tilted from the standing position 12A indicated by the two-dot chain line to the falling position 12B indicated by the solid line.
[0025]
When the back plate 12 is tilted in this manner, the surface of the seat plate 7 on the side where the skier is seated and the surface of the fallen back plate 12 come into contact with each other and overlap. At that time, since the back surface of the back plate 12 faces upward to cover the seat plate 7, the surface of the seat plate 7 and the back plate 12, that is, the surface on which the skier rides is prevented from snowing when it snows. Is something you can do.
[0026]
【The invention's effect】
In a conventional ski lift two-seater chair type carrier, the back plate on which the skier is seated is fixedly attached to the carrier frame side. For this reason, in the event of a snowfall, a clerk wiped off the snow on the backboard to land on the backboard.
[0027]
The present invention relates to a ski lift of an automatic circulation cableway, mainly for a chair type transporter for 4 to 6 persons, with the back plate being made retractable, the back plate locking mechanism holding the back plate in an upright position, and if necessary a locking mechanism It was also possible to defeat the backboard by removing the.
[0028]
The back plate lock mechanism has a hook attached to the support bar and an elastic ring fitted to the support bar on the same axis as the pivot core of the safety bar, which can be rotated up and down to prevent the skier who rides from falling. It is configured to be able to engage with and disengage from the back plate.
[0029]
Thus, the back plate lock mechanism is made as small as possible and the elastic ring that twists and urges the hook is not exposed to the outside, so that there is an effect that it is difficult to be damaged and a stable lock action can be achieved. If the back plate lock mechanism is removed and the back plate is tilted down during snowfall, there is also an effect of preventing snow on the seat plate and the back plate.
[Brief description of the drawings]
FIG. 1 is a side view of a chair-type transporter equipped with a back plate locking mechanism of the present invention.
2 is a front view of a chair-type transporter equipped with the back plate locking mechanism of the present invention shown in FIG.
FIG. 3 is a side view of a seat portion on which a skier of the chair-type transporter of FIG. 1 rides.
4 is a front view, partly in section, illustrating the configuration of the back plate locking mechanism of the present invention in section in the direction of arrow AA in FIG.
FIG. 5 is a side view showing a hook in a cross-sectional view illustrating a hook attachment state of the back plate locking mechanism of the present invention.
FIG. 6 is a side view of the seat portion showing a state where the safety bar is rotated upward to remove the back plate lock mechanism of the present invention and the back plate is tilted to the “falling position”.
FIG. 7 is a side view showing a configuration of a conventional chair-type transporter.
8 is a front view of FIG. 7 showing the configuration of a conventional chair-type transporter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Chair type carrier 2 Grasping machine 3 Suspender 4 Joint plate 5 Carrier frame 6 Connection bar 7 Seat plate 7a Buffer rubber 8,8 Pin 9,9 Handrail 10 Safety bar 10A Protection position 10B Jumping position 11 Pin 12 Back plate 12a Joint (free end)
12A Standing position 12B Falling position 13 Support bracket 13a, 13a Flange portion 13b Connection bar 14 Support 15, 16, Support shaft 17, 17, ... Nut 18, 18 Bearing 18a Collar 19 Bearing case 20 Bearing case 20a Shaft portion 21 Elastic ring 22 Support Beam 23 Bush 24 Torsion bar 25 Hook 25A Engagement position 25B Disengagement position 26 Main body 26a Locking portion 27 Holding block 28, 28 Tightening screw 29 Positioning collar 30, 31, 32, 33 Arrows 35, 35, ... Bolts 36, 36 , ... Bolts 37, 37, ... Bolt 40 Pivoting core 50 Chair type carrier 51 Grasping machine 52 Suspender 53 Joint plate 54 Carryer frame 55, 55 Handrail 56 Seat plate 57 Back plate 60, 70 Line A, A Arrow

Claims (1)

A ski lift chair-type transporter is a transporter with a back plate pivotally supported between two positions of "standing position" and "falling position" on a transporter frame,
A support bracket fixed to the carrier frame and pivotally supporting a safety bar;
A support beam supported by the support bracket so as to be able to be twisted and energized by interposing an elastic ring on the same axis as the pivot core of the safety bar;
A hook fixed to the support beam;
The back plate ,
A state in which the elastic ring is torsionally acted on by the hook and locked in the “standing position”;
The back of the chair-type carriage of the cableway, wherein the hook is unlocked and can be switched between a "standing position" and a "falling position". Plate lock mechanism.

Images