JPS60111663A - Climbing and falling device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for two people to ascend or descend a slope t using a rope hanging from a fixed fulcrum at the top. DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the rope brake 1Cv according to the present invention will be described with reference to conventional ascent and descent diagrams. 2 is the first side plate, 8
1 is a second side plate, 4 is a rope bending shaft, and 5 is a pressurizing shaft, all of which are rotatably attached to the first and second side plates. 6 is a connecting shaft, 7 and 8 are side plate support shafts, and both have screws 9. It can swing freely on both side plates with the ring IO and the mu shaft. 18 is cam.

(2) Reference numeral 4 denotes a lever, both of which are fixed to the camshaft (in the figure, the camshaft and lever are integrated, and the camshaft and cam are fixed with a key 15).

Rope bending axis4. Pressure shaft 5 and side plate support shaft. Therefore, the lever 14 cannot be rotated counterclockwise from the chain line OC, nor clockwise from the chain line OP. In other words, the connecting shaft 6-1 also serves as a lever stopper.

A rope for climbing and descending is fixed to a fixed fulcrum and suspended from the slope, and 20 is a connecting rope that connects the connecting shaft 6 to the person ascending and descending (instead of a rope, it is connected with a carabiner and a waist belt). These ropes and the rope brake are engaged as shown in Figure 2. Next, describe the shape of the cam. What is the distance between the center of the cam shaft and the periphery of the cam?

The distance from point 21 to point 2z, which is rotated approximately 100 degrees clockwise, is as small as possible, and the cam and pressure shaft do not press the ascending/descending rope during this time.

Also, since the cam is located in Figure 2 and the lever is located in Figure 1, the cam and pressure are applied until the lever is rotated counterclockwise toward Figure 1 and the lever comes into contact with the connecting shaft 6. Do not pressurize the climbing rope with the shaft. Next, in FIG. 2, the distance between the center of the cam shaft and the periphery of the cam gradually increases for approximately 200 degrees from point 21 of the cam to point 23 counterclockwise. Therefore, as shown in Fig. 1, the lever rotates clockwise from the first position, and as the lever rotates clockwise until it comes into contact with the plate 17 and the slow shaft 31C, the pressure on the ascending and descending rope by the cam and the pressure shaft increases. As the size increases, the braking force applied to the climbing and descending lobes increases.

Next, a method 7 for using this device will be explained. This device is used for lowering (including lowering vertical surfaces) and wall height. First, let us discuss the case of descending. The person descending connects the entire body of the connecting rope 20 with the first factor, rotates the lever C ten times, and puts his weight on the connecting rope. The wider the rotation angle, the less braking force is applied to the climbing rope and the lower the descending speed. Therefore, the descender descends while adjusting the descending speed by moving the lever. When the descender releases his hand from the lever, the distance between the center of the cam shaft and the periphery of the cam is as large as the 28 part of the cam, so the cam automatically rotates clockwise and the distance between the center of the cam shaft and the periphery of the cam is too large for the climbing rope. The braking force acts on the bottom, and the bottom has a buffering effect in the event of a fall.

Next, we will explain when this device is used for climbing. In Figure 2, the rope for climbing and descending is bent by e degrees at point P. The larger this θ is, the more pressure the point P of the rope will have on the point Q of the rope, and the greater the braking force acting on the rope for climbing and descending. The angle O will hereinafter be referred to as the braking angle. A person who climbs using this device must θ
You will be able to climb by changing the. In FIG. 1, the lever is rotated counterclockwise to contact the connecting shaft 6, and then the device is turned over. FIG. 4 shows this state. Now, if the climbing rope 19 in Figure 4 is tensed and the connecting rope is loose, if the wall climber grasps the lever and pulls it downward, the rope brake will generate a clockwise moment in the direction of Figure 4. Accordingly, the direction of the inclined climbing and descending rope is in the direction of arrow 26.

In other words, since the braking angle θ becomes large, the climbing rope and the rope brake will not slip even if a person standing on the wall puts their weight on the lever. Now, the wall-tall person stands on the platform, pushes his right arm on the edge of the platform, pushes the brake lever upwards, places it on the upper platform, pulls the lever, and moves to the upper platform while putting his weight on the lever. Repeat this to ascend. If the wall climber slips from the footing and his right hand leaves the lever, the slack connecting rope will be pulled by his weight. This toss lever automatically rotates over 180 degrees and descends using the curved rope brake, so the person who climbs the wall will stop without falling (and without suffering an excessive shock).

If you want to descend further from that position, just adjust the lever (and if you want to climb, find a suitable foothold, turn the lever 180 degrees, flip the rope brake, and use the device shown in Figure 1 above). In order to engage the climbing rope with the rope brake, it is necessary to use the end of the climbing rope.The device of the fifth factor can also be engaged in the middle of the climbing rope.

31 is a second side plate, 82 is a cam, 33 is a lever, and 34 is a side plate support shaft. Reference numeral 85 is a hinge that allows the first side plate and the second side plate to be opened as necessary. 36
If necessary, the first side plate and the second side plate are fixedly attached using thumbscrews. The hinge is fully opened and engaged with the rope-on-rope brake for climbing and descending, and then the hinge is closed and the first side plate is fixed to the second side plate with thumb screws. In both the first factor and the apparatus shown in FIG. 5, the rope bending shaft and the pressing shaft may be fixed to both side plates. This device can also be used to lower heavy objects.
Tie the heavy object to the climbing rope 19 and connect the connecting rope 2.
0 to the fixed fulcrum and operate the lever to lower the heavy object.

This device increases work efficiency when working at high places, especially when used for snow removal work or mountain climbing in northern countries. In addition, since the two devices have an excellent buffering effect, the number one reason for a sharpener slipping down during work is due to the non-invention.

Figure 2 is a cross-sectional view of Figure 1 taken along line A-A in Figure 8, Figure 3 is a longitudinal cross-sectional view of Figure 1 taken along line 2N B-B, and Figure 4. is a rear view when the lever 14Y in Fig. 1 is rotated approximately 100 degrees counterclockwise, and Fig. 5 is a side view of another embodiment of the present invention - Rope brake 2.80...First side plate 3,
31...Second side plate 4...Top bending shaft 5...
... Pressure shaft 6 ... Connection shaft 7, 8.34.
・Side plate support shaft 12...Cam shaft ■a32...
Cam 1488... Lever 16... Anti-slip
19... Climbing and descending rope zO... Connecting rope 85... Hinge 86... Thumb screw procedure Amendment Written by the Commissioner of the Patent Office September 2+, 1981 Tono-dori 1, Indication of the case 1982 Patent Application No. 115498 2
, Title of the invention Climbing device 3, Relationship with the case of the person making the amendment Patent applicant 4, Number of inventions increased by the amendment...05, Subject of the amendment...Description 6, Change the correction details.

[A single cam (1
8) and the side plate (2) relatively far away from the cam (18).
(8) The rope is installed between the bending shaft (4) and the side plate at a predetermined distance from the rope (18) and relatively far away from the bending shaft (4). f,
= The rope bending shaft (4), the cam (18), and the pressure shaft (5) enter between the pressure shaft (5) and the side plates (2) and (8) from above.
A rope for climbing and descending that bends on the same plane while contacting the
9) and a stopper (6) that is fixed to the side plate and limits the rotation of the lever (14).
) is first bent by an angle of 0 degrees in a predetermined rotation direction while contacting the rope bending shaft (4), then rotates in the predetermined rotation direction by a cam (18) and passes between the cam (18) and the pressure shaft (5). Then, the rope is inserted between the climbing and descending rope (19) and the rope bending shaft (4), and the rope bending shaft (4) is rotated in the opposite direction to the predetermined rotation direction, and then the cam (18) and the pressure shaft (5) are rotated. The distance from the center of rotation of the cam (13) to the periphery of the cam (13) is determined by the distance from the cam peripheral point (21) on the cam contour.
) in the predetermined rotational direction to a second predetermined cam peripheral point (28), and as the cam (18) rotates in the opposite direction to the predetermined rotational direction, the cam (13) and the pressure increase. From the vicinity (22) of the two peripheral points (28) toward the predetermined rotation direction so as to gradually compress the ascending/descending rope (19) existing between the shafts (5) and generate a gradually increasing braking force. The position of the stopper (6) is such that the rope (19) for ascending and descending is not pressed until it reaches the peripheral point (21). Page 4, No. 1 of a climbing device characterized in that when the lever (14) is pulled downward, the 0 degree bending angle of the climbing rope (19) increases to a predetermined value.
Insert the following sentence after the 7th line ``Big r-come'' ``Mar:
Since the rope at point P is pressing on the rope at point Q, a frictional force always acts between the climbing rope and the cam. Therefore," G) Insert the following sentence before page 6, line 19. "In Figure 1, the connecting shaft 6 also serves as a lever stopper.

Claims (1)

[Claims] A climbing device in which a rope bending shaft, a cam, and a pressure shaft are all attached to the first side plate and the second side plate, and a loaf 'Y for lowering the whole is attached to them, and a lever is fixed to the cam. , the engagement of the climber rope and the shape of the cam. When the lever t is rotated in a certain direction, the device operates as a descender, and when the lever is rotated in a direction opposite to the direction of rotation, the device operates as a climber. Characteristic climbing device