JP6555713B2 - Safety bar lock device for chairlift - Google Patents

Description

  The present invention relates to a safety bar lock device for preventing a safety bar provided in a chairlift carrier from being opened in a track.

  The chair lift is constructed by suspending a rope endlessly between pulleys provided at the foot of the mountainside and at the mountaintop side, and suspending chair-type carriers at regular intervals on both ropes. It is a transport facility that circulates between them and is often used on slopes such as ski resorts. The carrying device used for this chair lift has been put to practical use with 1 to 8 passengers. Of these, in the case of one or two passengers, the passenger can stabilize the body by grasping the armrests provided at the side edges of the seat, but in the case of more passengers, other than passengers at both ends. Passengers are unstable and can fall down.

  For this reason, large-sized transporters are provided with a safety bar to prevent passengers from falling. This safety bar is formed of a round steel pipe or the like so as to surround the front surface of the seat in a U-shape or a B-shape, and is provided so as to be rotatable between a substantially vertical position and a substantially horizontal position. Yes. The safety bar is in a substantially vertical state before the passenger gets on and is in a position where there is no hindrance to the ride. After the passenger gets on, the safety bar turns to a horizontal state and surrounds the passenger. In this way, the safety bar extends in the lateral direction in front of the passenger on board, and the passenger can stabilize his body by grasping the safety bar.

  It is desirable that the safety bar is always closed on the track when passengers are on the carriage. is there. In order to prevent such a situation, a safety bar lock device is provided in the vicinity of the rotation center of the safety bar, and a rod or cable and a roller are connected to the lock device and passed through a rail provided in the stop. A technique has been proposed in which a roller moves and, as a result, the safety bar is locked and released (see, for example, Patent Document 1).

JP 2009-57040 A

  However, the technique described in Patent Document 1 is preferable because the safety bar is surely opened and closed and the lock and release are automatically performed. Etc. had to be provided, so that there was a difficulty in becoming expensive.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a safety bar lock device for a chairlift transporter that is configured with a small number of parts and can be easily assembled, and thus can be configured at low cost. To do.

The invention of claim 1 is a chair lift carrying device including a safety bar rotatably attached to a suspended seat frame, and is secured to a safety bar supporting portion of the carrying device . A thick plate-like lock plate formed in an arc shape centering on the center of rotation , a bracket fixed to the safety bar, a hook rotatably supported by the bracket, and the hook attached to the lock plate A spring urging in the direction of engagement, and when the safety bar is in a closed state, a part of the arc shape of the lock plate and the hook are engaged with each other by the spring force of the spring. locked, when rotating the hook against the spring force of the spring, the engagement state between the lock plate solutions Is made rotatable in the direction of opening the safety bar, when the safety bar is open, the sliding to Rukoto in a state where the hook rides on other parts of the circular arc shape of the lock plate It is a feature.

According to a second aspect of the present invention, in the locking device according to the first aspect, a claw-like projection formed at one end of the hook and a latch formed at the part of the arc shape of the lock plate. A groove, and the claw-like projection and the latching groove are engaged to lock the safety bar.

  According to the present invention, since the number of parts is small and mounting is easy, a safety bar locking device can be provided at low cost.

Front view of the carrier Side view of the carrier Diagram showing the mounting part of the safety bar on the flange Side view of locking device Top view of the locking device Side view when the safety bar is open

    Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. 1 and 2 are a front view and a side view of a chairlift carrying device 10. The carrying device 10 is suspended by a gripping device 12 for grasping the rope 11, a suspender 13 pivotally attached to the grasping device 12 so as to be rotatable forward and backward in a traveling direction, and a lower portion of the suspender 13 via a cushioning material. And a seat plate 15b and a back plate 15a between the left and right members at the lower part of the seat frame 14. The carrying device 10 shown in the figure is a carrying device 10 for four persons and includes a seat 18 for four seats.

  A flange portion 17 is formed extending upward on the left and right side surfaces of the back plate 15a, and a safety bar 16 is rotatably attached to the flange portion 17. The safety bar 16 is a steel pipe formed in an annular shape, and is configured to rotate between a closed state indicated by a solid line in FIG. 2 and an open state indicated by a two-dot chain line. The safety bar 16 is in an open state when getting in and out of the bus stop. By manually closing the safety bar 16 in the track on which the passenger has boarded, the front bar 19 is located near the abdomen of the passenger, The fall from the seat 18 is prevented.

  FIG. 3 is a view showing an attachment portion of the safety bar 16 to the flange portion 17 of the back plate 15a. A through hole is formed in the flange portion 17, and a round flange type bearing unit 20 is attached thereto. On the other hand, on both sides of the safety bar 16, there are provided mounting members 23 made of a plate material bent into a substantially L shape, and a through hole is formed at the tip. Bolts 21 are inserted into the through holes of the bearing unit 20 and the mounting member 23 and nuts 22 are screwed together so that the safety bar 16 is rotatably supported by the flange portion 17 of the back plate 15a. In addition to the above configuration, a locking device 24 is provided in the mounting portion of the safety bar 16 on one side.

  4 and 5 are a side view and a plan view of the locking device 24, respectively. In each figure, the state when the safety bar 16 is closed is shown. First, a bracket 25 is fixed to the rear portion of the safety bar 16 with the safety bar 16 interposed therebetween. The upper member of the bracket 25 extends toward the inside of the transporter 10, and a plate-like member is formed upward at this portion, and a cylindrical boss portion is formed above this member. A hook 26 is rotatably attached to the boss portion.

  As shown in FIG. 4, the hook 26 is formed by forming a plate material in a lever shape extending in the front-rear direction, and has a claw-like protrusion 27 with a step on the lower surface of the front part. Further, a pin 28 is provided at the center position of the hook 26 so as to protrude inward of the transporter 10. The pin 28 is inserted into the boss portion of the bracket 25, and a C-shaped retaining ring is attached to the end portion of the pin 28. The hook 26 is attached to the bracket 25. A torsion coil spring 29 is attached to the boss portion of the bracket 25. One end of the torsion coil spring 29 is hooked to the bracket 25, and the other end is hooked to the hook 26, so that a spring force is applied so that the front side rotates downward with respect to the hook 26. It is energized.

  Next, a lock plate 30 is fixed to the flange portion 17 of the back plate 15a. As shown in FIG. 4, the lock plate 30 is formed in an arc shape centering on the rotation center of the safety bar 16 from the upper part to the rear part as shown in FIG. A retaining groove 31 is formed. When the safety bar 16 is in the closed state, the hook-like projection 27 of the hook 26 is engaged with the hooking groove 31, and the safety bar 16 is locked so as not to rotate in the open state. If the rear portion of the hook 26 is pushed down from this state, the engagement between the hook groove 31 and the hook 26 is released, the lock is released, and the safety bar 16 can be rotated in the open direction. In this embodiment, the lock plate 30 is fixed to the flange portion 17 of the back plate 15a. However, depending on the shape of the carrier 10, the lock plate 30 may be fixed to the seat frame 14 or the like. It only has to be attached to the position.

  FIG. 6 is a side view when the safety bar 16 is in an open state. In this state, the bracket 25 or the hook 26 attached to the safety bar 16 is rotated and stopped toward the rear side of the lock plate 30, and the claw-like protrusions 27 of the hook 26 are formed on the arc-shaped portion of the lock plate 30. It is in the state of getting on. In this state, the transporter 10 is routed through the stop and a passenger is seated at the boarding position, and the passenger turns the safety bar 16 to a closed state. By this operation, the bracket 25 or the hook 26 is also rotated forward, and the claw-like protrusion 27 is fitted into the retaining groove 31 by the urging force of the torsion coil spring 29, and the safety bar 16 is locked as shown in FIG. .

  After traveling along the track in a locked state, when the transporter 10 arrives at the other stop, an attendant in the stop depresses the rear part of the hook 26 to release the lock, and the safety bar 16 is rotated to the open state. As a result, the passenger can get up from the transporter 10, get off the vehicle and exit from the stop.

DESCRIPTION OF SYMBOLS 10 Carriage 11 Line 12 Grasping machine 13 Suspender 14 Seat frame 15a Back plate 15b Seat plate 16 Safety bar 17 Flange part 18 Seat 19 Front bar 20 Bearing unit 21 Bolt 22 Nut 23 Mounting member 24 Lock device 25 Bracket 26 Hook 27 Claw Protrusion 29 Torsion coil spring 30 Lock plate 31 Retaining groove

Claims (2)

In a chair lift carrying device having a safety bar that is pivotably attached to a suspended seat frame, the chair lift is fixed near a safety bar support portion of the carrying device and is centered on the turning center of the safety bar. A thick plate-shaped lock plate formed in an arc shape, a bracket fixed to the safety bar, a hook rotatably supported by the bracket , and a biasing force in a direction in which the hook is engaged with the lock plate. comprising a spring, wherein the safety bar is locked the circular arc part between the hook and the said safety bar and engaged by the spring force of the spring of the shape of the lock plate when in the closed state, the said spring When the hook is rotated against the spring force, the hooked state with the lock plate is released, and the saver is released. Becomes rotatable in a direction of opening the tee bar, when the safety bar is open, the slide to Rukoto wherein in a state where the hook rides on other parts of the circular arc shape of the lock plate chairs Safety bar lock device for lift trucks. A hook-like protrusion formed at one end of the hook and a hook groove formed in the part of the arc shape of the lock plate, the hook-like protrusion and the hook groove engaging each other. The safety bar lock device for a chairlift transporter according to claim 1, wherein the safety bar is locked.

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