JPH0780458B2 - Automatic lanyard device for cableway - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an automatic gripping device for a carrier such as a lift, a gondola, and a monorail that is used for transporting passengers and cargo, using a cableway.

(Prior art and its problems) The gripping of a carrier using a cableway is an extremely important mechanism. If the gripping is not complete, not only will the transportation of passengers and cargo not be achieved, but it will be extremely dangerous. Therefore, various devices have been proposed for the gripping device of the carrier.

For example, as shown in FIGS. 6 and 7, the link 2 forming the toggle link mechanism is driven by the piston rod 6 of the hydraulic cylinder device 4, and the semi-cylindrical sleeve attached to the tip of the link 2 is opened / closed to move the cableway. Gripping is performed.

However, in this device, since the link 2 and the semi-cylindrical sleeve 8 are formed symmetrically with respect to the center line of the steel rope, when the pivot point of the link 2 is worn due to long-term action, the semi-cylindrical sleeve 8 is formed. May not be completely closed even if closed. In addition, since the left and right links do not necessarily wear uniformly at the pivot points of the links 2, a gap is gradually created between the semi-cylindrical sleeves 8 and the steel rope is not gripped completely. Especially the 6th
When the steel rope is gripped between the semi-cylindrical sleeves 8 at the position shown in FIG. 7, the weight of the carrier is added to the steel rope from above, so that the semi-cylindrical sleeve 8 incompletely closed is interrupted by the steel rope. It is even more dangerous as it acts to open the cylindrical sleeve 8.

If this gripping device is used with the piston rod 6 occupying the horizontal position by rotating 90 ° from the position shown in FIGS. 6 and 7, the half-cylindrical sleeve 8 is positioned in the vertical relationship, Therefore, since the gap generated between the semi-cylindrical sleeves 8 exists in the horizontal direction of the steel rope, the steel rope is easily detached from the gripping device, which is dangerous.

(Means for Solving the Problem) In order to solve this problem, the gripping device for a cableway according to the present invention has two first links which are pivotally attached to each other at one end around pivot pins and have the same length. The other end of the first link comprises a double link consisting of two second links, one end pivoted about a pivot pin and the other end pivoted about a common pivot pin. , The pivot pins for the first links of the second links are respectively the pivot pins that pivotally attach two first links and the line that connects the centers of the pivot pins that pivotally attach the two second links. Short grip claws, which are arranged on both sides, are provided on one of the second links between the pivot pin for the link and the common pivot pin of the second links, and the other second link is provided with a short grip claw. Refers to said link with respect to a common pivot pin of the second link A long grip claw for gripping the cableway is provided on the opposite side of the pivot pin, and the two first links are driven to the pivot pin to which the two first links are pivoted so as to grip and release the cableway by the short grip claw and the long grip claw. The device is pivotally connected.

(Operation) With the configuration described above, the drive device
When the drive pins of the first links are pressed in the direction of the ropeway (steel rope), the pivot pins of the second links at the other ends of the two first links move in the directions away from each other, whereby the short grip claws and The long grip claws rotate around the common pivot pin of the second link in directions toward each other, and the short grip claw and the long grip claw reliably grip the cableway.

Conversely, if the drive device pulls the two pivot pins of the first links in the direction away from the cableway (steel rope), the two first links
The pivot pin of the second link at the other end of the link moves towards each other, causing the short and long grip pawls to pivot about the common pivot pin of the second link away from each other, These short grip claws and long grip claws release the cableway.

According to the present invention, the short grip claw and the long grip claw are both above the cableway, so that the cableway is held securely and reliably.

Furthermore, since both the short grip claw and the long grip claw are moved by the double link, the movement stroke of the drive device for gripping and releasing the cableway can be halved, and the operation is reliable and the grip force is increased. Moreover, there is an effect that the gripping force does not decrease even when each member is worn.

(Embodiment) FIG. 1 shows a gondola as an example in which the gripping device of the present invention is adopted. The gripping device 16 of the present invention is provided on the suspender 14 for suspending the carrier 12 to grip the steel rope 18.

An outline of this gripping device 16 is shown in FIGS. In FIGS. 2 and 3, the operating lever 20 is pivotally attached to the gripping device body 18 at 22. A drive rod 26 is connected to the lower end of the operating lever 20 via a link 24. When the operating lever 20 is placed in the position shown by the solid line in the figure against the force of the compression spring 27, the drive rod 26 moves to the left as viewed in FIG. This operation is automatically performed when it is necessary to grasp the steel rope. 2 operation lever 20
When moved to the position indicated by the dashed line, the drive rod 26 moves to the right as viewed in FIG. This is also done automatically when it is necessary to release the steel rope.

As shown in FIG. 2, at the opposite end of the drive rod 26, two first links 28 of substantially the same length are pivotally attached around the pivot pin 25, and at opposite ends of the respective links 28. Two second links 30, 32, namely a short grip 30 of a special shape according to the invention.
And the long grip 32 at the pivot points 29 and 31, respectively.

As clearly shown in FIGS. 4 and 5, the short grip 30 and the long grip 32 have special shapes. That is, the short grip 30 and the long grip 32 are pivotally attached to each other at 34 so as to intersect with each other, but in the short grip 30, between the pivot attachment point 29 to the link 28 and the pivot attachment point 34 to the long grip 32. A nail 36 for gripping the steel rope is provided on the. On the other hand, the long grip 32 has a pivot point 34 to the short grip 30.
With respect to the link 28, a claw 38 is provided at the end opposite to the pivot point 31 of the link 28. The pivot points (pins) 29 and 31 are respectively the pivot points (pin) 2
Place on both sides of the line connecting the centers of 5,34.

With this structure, a special link mechanism is composed of the two links 28, the short grip 30 and the long grip 32, and the operating lever 20 is moved to the position shown by the solid line in FIG. When moved to the left as viewed in FIG. 2, the short grip 30 and the long grip 32 occupy the positions shown in FIG.
The steel rope is gripped by 36 and 38.

Further, when the operation lever 20 is moved to the position shown by the chain double-dashed line in FIG. 2 and the drive rod 26 is moved to the right as viewed in FIG. 2, the short grip 30 and the long grip 32 move to the positions shown in FIG. Occupy the
The claws 36, 38 open to release the steel rope.

As shown in FIG. 4, two links 28 and a short grip 30,
Even if the pivot point of the long grip 32 is worn, the short grip 30 and the long grip 32 grip the steel rope from above the steel rope, and since the two members of the short grip 30 and the long grip 32 apply a load to the steel rope. It's safe. Further, even if the pivot point is worn as described above, a gap does not occur in the direction in which the grip is removed from the steel rope, so that the steel rope can be safely gripped.

(Effect) In the present invention, as described above, the steel rope is gripped by the link device using the link and the special shape short grip and long grip, and the load is applied to the steel rope from above the steel rope by the short grip and the long grip. This has the effect of making the gripping of the steel rope safe and reliable. Further, by providing the two links 28 having the same length, it is possible to increase the grasping force with respect to the cableway, and there is an advantage that the grasping force does not decrease even if each member is worn.

[Brief description of drawings]

FIG. 1 is a front view of a gondola to which the gripping device of the present invention is applied, FIG. 2 is a sectional view of the gripping device of the present invention, FIG. 3 is a plan view of the device of FIG. 2, and FIG. Fig. 5 is a front view of the main part of the gripping device of the present invention in a running state, Fig. 5 is a front view of the main part of Fig. 4 with the steel rope released, and Figs. 6 and 7 show a conventional gripping device. It is a figure. 2 ... Link, 4 ... Hydraulic cylinder device 6 ... Piston rod, 8 ... Semi-cylindrical sleeve 12 ... Transporter, 14 ... Suspender 16 ... Grip device, 18 ... Steel rope 20 ... Operating lever , 22 …… Pivot point 24 …… Link, 26 …… Drive rod 27 …… Spring, 28 …… Link 29,31 …… Pivot point, 30 …… Short grip 32 …… Long grip, 34 …… Pivot Point 36,38 …… Nail

Claims (2)

[Claims] 1. An automatic gripping device for a maneuvering path, wherein one end of each is pivoted about a pivoting pin (25) and the lengths are equal to each other.
One first link (28) and the other ends of these first links (28) are respectively pivoted at one end around the pivot pins (29, 30) and at the other end with a common pivot. A double link composed of two second links (30, 32) pivotally mounted around the pin (34) is provided, and a pivot pin (28) for the first link (28) of these second links (30, 32) is provided. 29, 31) are pivot pins (25) pivotally attached to the two first links (28) and pivot pins (34) pivotally attached to the two second links (30, 32).
Placed on both sides of the line connecting the centers of the two, and one of the second links (30, 32) has a link (2
Short grip claw (36) for gripping the cableway between the pivot pin (29) for 8) and the common pivot pin (34) of the second link.
And a long grip claw for gripping the cableway on the other side of the second link (32) on the opposite side of the common pivot pin (34) of the second link from the pivot pin (31) for the link (28). (38) is provided, and the short grip claw (36) and the long grip claw (38) drive the pivot pin (25) pivotally attached to the two first links (28) so as to grasp and release the cableway. An automatic lacing device for cableways, characterized in that a device (26) is pivotally connected. 2. The automatic rope-finding device for a cableway according to claim 1, wherein a fluid device is used as the drive device.