WO1984002850A1

WO1984002850A1 - Rope-braking apparatus

Info

Publication number: WO1984002850A1
Application number: PCT/JP1984/000026
Authority: WO
Inventors: Shigeo Ishioka
Original assignee: Shigeo Ishioka
Priority date: 1983-01-31
Filing date: 1984-01-31
Publication date: 1984-08-02
Also published as: JPS59118652U; AU2433984A; JPH043866Y2

Abstract

A rope-braking apparatus is mainly used for preventing accidental slipping when working in high places, escaping during a fire, or in mountaineering. The rope-braking apparatus comprises a rocking cam (13) rotatably mounted between two parallel, separated side plates (2), (3) on a cam-actuating lever (14) secured to one end of a cam shaft (12); a rope-curving first shaft (4) provided between the side plates (2), (3) at a position far from the rocking cam (13); a rope-compressing second shaft (5) provided between the side plates (2), (3) at a position of a predetermined distance away from the rocking cam (13); and a brake rope (19) which enters the area between the side plates (2), (3) from above, passes over the rocking cam (13), curves around the first shaft (4), and then extends out from between the side plates through the space between the rocking cam (13) and the second shaft (5). The height of the cam lobe gradually increases in a given direction from a first predetermined cam peripheral point (21) of the cam profile to a second predetermined cam peripheral point (23). Thus, as the rocking cam (13) rotates in the given direction, it gradually compresses part of the brake rope between the cam (13) and the second shaft (5) to increase the braking power gradually.

Description

Specification

Loop control device

Technical field

The present invention generally relates to a device for braking a rope, and in particular, can be used for work at a high place, emergency escape in case of fire, prevention of personal injury when climbing a mountain, etc. Rope braking device

Background art

For example, in the lobe braking of the conventional evacuation dropping device used in the case of emergency escape, for example, as disclosed in Japanese Utility Model Publication No. 51-58240, a fixed friction body fixed to the main body and this friction body The lobes are inserted into the through holes provided in the slidable movable frictional body, respectively, and the movable frictional body is slid through the rack and pinion by the operation lever to move the lobes into contact with the lobes. The braking force is generated by increasing the frictional force between the frictional body. However, this type of conventional rope braking device has a structure that penetrates the rope through the through-hole of the friction body, so that the structure is extremely complicated for rope braking. However, even in the minimum braking state, the frictional force is relatively strong, so it is not possible to easily move the descent along the rope by hand. Can not be operated in a horizontal position, so it is not suitable as an emergency escape device because it can immediately perform an evacuation point, for example, when one end of the lobe is connected to the door knob, and move the descent to the lobe vertical position) There were also drawbacks, such as operational failures. In this conventional rope braking device, Δ

If you release your hands, it will return to the minimum braking state and the lobe can be braked, which is extremely dangerous. .

Disclosure of the invention

An object of the present invention is to provide a lightweight, compact, and easy-to-operate rope braking device that does not have the above-mentioned drawbacks of the conventional lobe braking device.

According to a preferred embodiment of the present invention, a lobe brake device according to the present invention is an automatic brake braking device for adjusting a braking force between a first side plate and a second side plate forming a housing. A cam, a first shaft for bending the rope located away from the driving cam, a second shaft adjacent to the driving cam and cooperating with the movement cam to pressurize the rope, and a lobe braking device. A connecting shaft that forms a connecting device for connecting to the motor; an operating lever that is connected to the moving cam to control the rotational movement of the cam; and enters the lobe controlling device from above, and then turns the moving cam! ) ), A π-loop that bends at the turn of the rope bending first shaft], passes between the driving cam and the lobe pressure second shaft], and exits outside the rope braking device.摇 The moving cam is rotatable by a predetermined distance from the second axis.¾ It is fixed to the force shaft.i 摇 The height of the lobe of the moving cam is the minimum height of the lobe. When they face each other, they do not pressurize or compress the lobes between the second shaft and the driving cam, but gradually increase from the minimum lobe height to the maximum lobe height. As the height of the lobe portion of the force facing the pressure second shaft increases from its minimum value to its maximum value, the pressing force on the mouth between the pressure second shaft and the cam increases, Therefore, the braking force on the lobe increases.

Due to the above configuration, the rope braking device according to the present invention is ό

Extremely simple construction and small size! ), Operation is very easy.]? Since the lobe does not pass through a complicated path, operation is reliable, trouble-free, and movement for segmenting along the lobe is easy. Even if the hand is released from the lever, the cam surface and the rope come into contact. 3) The frictional force generated causes the moving cam to automatically rotate to the maximum braking position and lock the lobe, causing the danger of unexpected sudden drop. The sex is also strong.

INDUSTRIAL APPLICABILITY The rope braking device of the present invention can be applied to a climbing and descending device for work at height, a descending device for evacuation, a shock absorber for mountain climbing, and the like, and can also be embodied as a load cell.

BRIEF DESCRIPTION OF THE FIGURES

FIG. 1 shows an embodiment of a rope braking device according to the present invention, and is a front view of the rope braking device applied to an elevator. FIG. 2 is a view showing the internal structure of FIG. 1, and is a cross-sectional view taken along a line Π-π in FIG. FIG. 3 is a sectional view taken along the line m-nr in FIG. FIG. 4 is a rear view of the apparatus of FIG. 1 in a state where the operation lever is turned in one direction. FIG. 5 is a side view showing a modification of the apparatus shown in FIG. FIG. 5 is a view showing an embodiment of an evacuation descent tool to which the lobe braking device of the present invention is applied. FIG. 7 is a partial view showing a use state of the connecting device of the lowering device of FIG. FIG. 8 is a diagram showing a situation of evacuation and descent using the descent of FIG. Fig. 9 is a simplified view of a climber wearing a rope braking device applied as a climbing shock absorber. FIG. 10 is a plan view of the shock absorber of FIG. Fig. 11 is the side view. FIG. 12 is a cross-sectional side view of the lobe braking device in FIG. FIG. 13 is a sectional view taken along line xm-xin in FIG.

Fig. 14 shows a slope of a pickle suitable for use with the shock absorber of Fig. 10.

_ C; .-. PI View. Fig. 15 is a partially enlarged view of Pickel. FIG. 1 is a front view of a load cell to which the lobe braking device of the present invention is applied. FIG. I7 is a side view of the same. Fig. 18 is a partial cross-sectional plan view. FIG. 19 and FIG. 20 are partial cross-sectional views showing different modified examples of the load cell. FIG. 21 is a sectional plan view showing another embodiment of the lobe braking device of the present invention having a speed operating device. Fig. 22 is a plan view of the lobe braking device. FIG. 23 is a partial sectional view. Figure 24 is a partial side view. FIG. 25 is a cross-sectional side view of a lobe braking device according to still another embodiment. Fig. 2 is a partial cross-sectional plan view. Fig. 27 is a cross-sectional plan view of another part. FIG. 28 is a cross-sectional side view of a lobe braking device according to still another embodiment. FIG. 29 is a cross-sectional view of a part thereof.

BEST MODE FOR CARRYING OUT THE INVENTION

A preferred embodiment of the present invention will be described with reference to the drawings. FIGS. 1 to 4 show an embodiment of a mouthpiece control device 1 of the present invention applied to an ascending and descending device for working at height. The rope braking device 1 preferably comprises a rectangular parallel-spaced first side plate 2 and a second side plate 5 with screws 8,

A housing 7 interconnected by a fixing means such as 10 and a housing 7 which is located substantially at the center of the housing, located between the first side plate and the second side plate, and rotated between these side plates 2 and 3. Shaft mounted as possible

The cam 13 mounted on 2 and the cam 13 relatively far away from the moving cam 13] 3, for example, located near the upper left corner (Fig. 2), and rotatably mounted between the side plates 2 and δ. The first shaft 4 for bending the rope and the force shaft 12 are separated by a predetermined distance and are relatively far from the first shaft 4. For example, they are located near the upper right corner (Fig. 2). A second shaft 5 for rotating the rope, which is rotatably mounted between the side plates 2 and 3, and a left corner Extend into the housing 7 from above (Fig. 2), and

Turn, then bend with the 1st axis 4 and then cam

Extends outside the housing 7 between 1 and 3 and 2nd shaft 5

Connect the braking lobe 19 and the lobe braking device 1 to the

Connecting means 合 for coupling. In the example of Figs. 1 to 4,

The connecting means is to place the lobe braking device 1 at a high position via the connecting rope 20.

It consists of a connecting shaft ό for connecting to the worker. Camshaft 1 2

Has one end protruding from the side plate 3 and the cam operation lever 14 is fixed there.

I have. Preferably, a 1 mm slide is provided at the end of lever 14.

You. Rotate lever 1 4 to the left and right by hand (Fig. 1) and cam 1 3

Will rotate.

The shape of force 1 is as follows. Center of camshaft 1 2

Distance from the cam 13 to the periphery of the cam, ie, the height of the cam lobe,

When the device 1 is in the rest position (Fig. 2),

Around 100 degrees clockwise from the circumferential point 21 of the facing cam

The distance between the cam peripheral point 22 and the cam lobe 22 is the smallest (the minimum lobe height). During this time, the cam 13 and the pressure shaft 5 do not press the braking rope 19.

On the other hand, the cam turned about 200 degrees counterclockwise from the peripheral point 21 of the cam.

The cam lobe height gradually increases up to the cam peripheral point 23.

The circumference point 23 is the maximum lobe height. Equipment corresponding to Fig. 2

In the rest position of position 1, the cam operating lever 14 is shown in Fig. 1.

In the upright position, so that lever 14 can be turned to the right

If the cam 13 rotates to the right, the cam 13 and the pressure shaft 5

The compression force on the braking lobes 1 to 9 is large], hence the rope

The braking force also increases. On the other hand, turn lever 14 to the left (Fig. 1). Replace "VArO" However, since the minimum lobe height between the cam peripheral points 21 and 22 faces the pressure shaft 5, the lobe 19 is not pressed between the cam and the pressure shaft. Stoppers 9 and 17 are provided on the side plate 3 to limit the degree of rotation of the Rep. 14! When the lever 14 turns to the right and engages the stopper 17 (at the position indicated by the dashed line 0 D in FIG. 1), the cam circumference 緣 point 23, which is the height of the highest port, is the pressure shaft 5. When the lever is turned to the left and engaged with the stopper 9 (the position of the dashed line 0 C in FIG. 1), the cam peripheral point 22 faces the pressing shaft 5. .

Preferably, the position of the connecting shaft は is such that when the upper end 11 of the braking lobe 19 is fixed to the fixed fulcrum 15 outside the device and the weight is added to the connecting rope 20, the upper part of the rope 1 9 «and misaligned axis ό are on a straight line. In this case, the braking lobe portion going upward from the cam 13 is bent by the first shaft 4] and pressed against the mouth portion of the first shaft 4 at the point Q (Fig. 2). And the friction between the ropes • causes a braking action. The braking force in this case increases as the angle between the braking rope portion 11 from the cam 13 to the point Q and the upper rope portion 19 "increases. In the following, the angle is referred to as a braking angle. Will be described later.

In addition, the protrusion 18 for limiting the movement of the braking lobe is connected to the side plate 2,

It is good to provide between 5.

Next, the operation of the elevator for working at heights using the lobe braking device shown in Figs. This altitude climber allows the hills 19 to hang down the slope from the upper fixed fulcrum 15 to allow ascending or descending as required, and in the event of a crash I * — This makes it possible to automatically protect workers from impact.

Therefore, this descender (rope braking device 1) can be used for both descending (including descending on a vertical plane) and climbing. First, the case of descending is described. When the worker (not shown), who has connected the lobe brake device 1 to the body with the connection lobe 20, wants to lower it, he rotates the lever 14 in FIG. Multiply weight by 0. The greater the rotation angle of the lever, the greater the compression force (at point R) on the braking rope 19 by the cam 13 and the pressure shaft 5, so the braking force on the rope 19 also increases. The descent speed decreases. Therefore, the operator can move the lever 14 to the left or right to lower while adjusting the lowering speed. In the unlikely event that an operator accidentally releases his hand from the lever 14, the tension acting on the upper rope portion 19 and the engagement between the periphery of the cam 15 and the braking lobe will occur. Due to the frictional resistance, the cam 13 automatically rotates clockwise (Fig. 2), causing the compression force on the braking lobe by the cam 13 and the second shaft 5 to increase sharply, and as a result, the rope is greatly restricted. The power works and the worker stops. Since the height of the lobe of the cam 13 is gradually increased, the braking force is also gradually increased, so that no impact force is applied to the falling worker. That is, the lobe braking device has a buffering function against an accidental fall of the worker. Next, the case where it is used for climbing is described. As shown in FIG. 2, the brake rope above cam 13

19 presses the brake port of the first shaft 4 at the point Q, and bends around the point Q to generate a braking angle. The greater the angle of the braking angle, the greater the compression force at point Q, so the greater the braking force on the lobe. Elevators for working at heights shown in Figs. 1 to 4

ΟΛ1ΡΙ

, V.O

' In the case of climbing by using, the climbing is performed by changing the braking angle. The worker who has joined the body to the apparatus 1 with the connection robe 20 first turns the operation lever 14 counterclockwise (FIG. 1) to engage the stopper 9. During this time, since the minimum rope height from the cam peripheral points 21 to 22 faces the pressure shaft 5, no compression of the braking lobe by the cam 13 and the pressure shaft 5 occurs. Next, the device 1 is turned over as shown in FIG. In this state, when the operation rope 14 is pulled downward with the braking rope 19 tensioned and the connection lobe 20 loosened, the lobe braking device 1 is actuated clockwise (Fig. 4). Then, the housing 7 tilts to the right as shown by the dotted line. Therefore, the braking angle is large.] Even if the operator puts weight on the operation reper, the relative braking force J between the braking lobe and the braking device 1 does not occur due to the large braking force. In this state, the worker stands on a suitable scaffold on the slope, grasps the lower part of the lobe 19c with the left hand, and pushes the rope brake device 1 upward with the right hand while pushing the respirator 14 and rope braking. Device 1 moves upward along braking lobe 19. Next, the worker places one foot on the upper scaffold and moves levers 14 to the upper scaffold while applying weight to the bow and tension lepper. If you repeat the above operation, you can climb as needed. If the worker slides off the scaffold and the leper 14 moves away from the hand, the loosening connecting rope depends on the weight of the slipper.]? Tensions and a downward force on the rope braking device 1 The operation lever 1'14 is automatically rotated to the left by the frictional force generated by the engagement of the cam and the brake rope.] (Fig. 4) Is it in a state]? Stops the slipper with cushioning. If you want to descend from this stop position, y

If you want to climb, find a suitable platform and repeat the climbing operation described above.

As shown in Fig. 5, one end of each of the side plates 2 and 3 is pivotally connected to each other by hinges 20 and screws 27 to facilitate the mounting of the braking lobe 19 to the rope braking device 1. It is preferable to provide a removable thumbscrew 28 at the other end of the side plates 2 and 3 so that the inside of the braking device 1 can be exposed. In this way, any part of the braking lobe 19 can be easily mounted on the drive. In addition, 29 is a spacer separating the side plates.

Next, an embodiment of the lobe braking device of the present invention applied to an evacuation descent is shown in FIGS. As shown in FIG. 5, the evacuation descent device 30 includes a rope braking device 1 according to the present invention, an evacuation person's clothing device 31 coupled to a connecting shaft の of the rope braking device, and a braking device for braking. A storage device 32 for storing the lower portion of the rope 19 and a fixing device 33 provided at the upper end of the braking rope 19 for connecting the evacuation descent device 50 to a fixed fulcrum of the evacuation opening. The internal structure of the rope control device 1 of this evacuation descent is the same as that of FIGS. The refugee (escaper) outfit 31 is preferably a pan-type, relatively wide main belt 34 connected to the connecting shaft 軸 of the lobe braking device 1 and a part of the main belt. Pants 3 5 attached to the main belt, shoulder belts 3 mm with adjustable length fixed to the main belt, and relatively wide ¾ belts 3 connected to the main belt and attached to the pants 7 and a pouch 38 provided in the pants 35. The features of this evacuation equipment 31 are that it is not bulky when folded and lightweight, and that evacuees do not feel pain while descending _. 丄 υ

Main belt 3 4 and hip belt to support the weight of descending evacuees

3 7 is thin and wide, and it is inserted into the pants 3 5 so that it does not bite into the body.

That is. The clothing 31 itself weighs approximately 100 grams. The main belt and hip belt support the impact force during escape. The braking rope storage device 32 is in the form of a bag in the embodiment shown in the drawing.] The bag has a built-in bobbin 40 supported by a rotating shaft 39 rotatably mounted on the bag. The lower end of the braking lobe is wound around the bobbin. Braking robes 1 9 bobbins

It extends from 40 to the lobe braking device 1 through the upper opening of the bag 32. The bag 3 2 is attached to the strap 4 1]. The bag 32 can also serve as a portable bag that accommodates the entire evacuation descent. Next, the fixing tool 35 is composed of a pair of hooks in the embodiment shown in the drawing.9, for example, a braking lobe wheel 42 is formed as shown in FIG. , Door knobs, bed legs, veranda handrails, and parts of cars on elevated roads). In this evacuation descent, in consideration of fire resistance, the braking rope 19 may be made of a material such as wire or Kepler fiber. It is also preferable that the operation lever 14 and the slide 1 の of the braking device 1 are heat-insulating. ¾ ぉ A slidable edge protector 44 should be provided to protect the braking rope 19 from protrusions and edges 43 (Fig. 8) near the evacuation exit.

Next, an emergency evacuation using the evacuation descent device 30 will be described. The evacuees should first wear pants 5 and shoulder belts 5 6

To Then, fix the fulcrum of the evacuation exit with the hook 33 and the wheel 42.

Vv uo no (For example, the upper end of the braking rope 19 is fixed to the door knob 45 in Fig. 8), and the lobe braking device 1 is not operated (Figs. 1 and 2), that is, the lobe 19 is not braked. Walk down to the descent point if necessary, and if necessary, engage the protective body 4 4 with the edge 45 of the descent building, and operate the operating lever 14 of the mouth brake device 1 as described above to apply the braking force to the rope. And start descent (Fig. 8). As described above, the descent speed can be adjusted by operating the lever 14 so that, for example, a place where fire is blowing out during descent can be descended at a rapid speed, and when the landing point is burning, stop in the air. And rescue, and if there is a safe place on the way down, you can stop at that position and evacuate to a safe zone. Also, even if you accidentally release your hand from the lever, the evacuee stops with a cushioning effect, which is safe. Furthermore, in this evacuation descent device, since the descent rope or robe drum is thrown down, there is no danger to persons located below.

Next, an embodiment of the lobe braking device of the present invention applied to a climbing shock absorber will be described with reference to FIGS. This shock absorber for mountaineering, for example, stops the climber's fall with a buffering action in the event of a fall or fall during climbing on an ice or snow slope or during climbing by mouth. The climbing shock absorber 50 (Fig. 9) is used by connecting it to the waist belt 51 worn by the climber via a gutter drop 52. The climbing shock absorber 50 includes a lobe braking device 100 according to the present invention, a coupling plate 5 δ fixed to a lower end of the braking device 100, and a lower portion of the coupling plate 53 rotated by a shaft 54. A rotatable bobbin 55 fitted around the lower part of the braking rope 19 of the lobe braking device, which can be mounted, Storage bag containing coupling plate, bobbin and rope braking device

Consisting of Storage bag 5 5 covers and protects almost the entire buffer 50

However, it is necessary to provide heights, etc., where necessary,

¾ Tools are exposed to the outside.

In this embodiment, the rope braking device 100 is shown in FIGS.

Has almost the same structure as the lobe braking device 1 of the first embodiment,

The operation of the operation reporter 1 4 4] has a rope braking force adjustment device ό 0

You. In detail, as shown in Figs.

Adjusting device ό 0 projects from the second side plate 3 of the rope braking device 100.

Operating plate 57 fixed to the end of the camshaft 12

Scale plate rotatably mounted on the camshaft 12 on the side

Consists of 5 and 8! ), Scale 1? Board 5 8 is provided with circular cavity 59

The operating plate 57 is located in this cavity. Also

scale! ) Board 5 8 outer central bore ό1 and camshaft 12

Compressed panel ό3 located between flange ό2 and scale] 3]

2 Pressed against side plate 3. In addition, scale D panel 58 protrudes inward

A standby rod 4 is provided, which is a camshaft.

A plurality of standby units provided on the second side plate 3 along a circle centered on 2

Can be engaged with any one of holes ό5. In the example shown, eight standby holes

(Figure 13). Next to the first and last standby holes

In contact therewith, the second side plate 3 is also provided with a stopper. Working plate

5 7 is the stopper on the 2nd side plate 目 6 and the scale D Stand 5 8 Standby rod 8 4

突起 7 protruding into the space defined by

Start by abutting the standby rod ό4 engaged with the standby hole ό5! )

The rotation of the moving plate 57, and therefore the camshaft 12 to which it is fixed, and the replacement ONIPL. Limit the rotation of its cam 13. As shown in FIG. 13, when the standby rod 4 is engaged with the first standby hole 05α, the operating plate 57 cannot substantially rotate, and the cam 13 also tends to rotate. This position is defined as the 0 position, and in accordance with this position, the number of “0” is attached to the periphery of the scale i? 58 in accordance with the mark ό8 (Fig. 10) provided on the shock absorber 50. Is engraved. Similarly, in order to indicate the state when the standby rod # 4 is engaged with each standby hole # 5, the numbers from "1" to "7" are associated with the seven standby holes of [remaining]. scale! ) It is engraved sequentially around the board. Therefore, when the standby rod # 4 is engaged with the second standby hole 05, the number "1" is placed at the position of the mark # 8, and when the number "5" is at the position of the mark 08, the standby rod is It is engaged with the όth standby hole 05c (Fig. 13).

The configuration of the lobe braking force adjusting device # 0 is different from that of controlling the rope braking force by rotating the cam by manual rotation of the operation lever 14 as in the above-described embodiment. By setting the position of the rope in advance, the rope braking force can be set to a predetermined value. That is, in this embodiment, the shape of the cam 13 (FIG. 2) is such that the projection ό7 of the operation plate 57 abuts on the standby rod ό4 (FIG. 13) at the “0” position. When the lowest lobe of the cam faces the pressurized second shaft 5 (Fig. 2), no braking force is applied to the rope between the cam and the second shaft, and the standby rod (the last When the projection 67 engages with the standby rod engaged with the standby hole 05 ^, the highest lobe portion of the cam faces the pressure second shaft 5 and applies the maximum braking force to the brake port, and the cam It is said that the mouth of the child gradually increases from the minimum height to the maximum height. Therefore, climbers need to use the waiting rod according to the situation at the climbing site. And adjust the rope braking force according to the situation

C later :) c

Here, the use of the climbing shock absorber of the present invention will be described by taking as an example a case where a plurality of climbers (for the sake of explanation, two persons, top and last) climb a slope of ice and snow using a zir. I do. Each of the two climbers wears a waist belt 51).) Wear a climbing shock absorber 50 (Fig. 9). In this case, both the top and the last are connected to each other by connecting zirls 70 to both ends of the brake opening 19 of the rope braking device 100, and the connecting shaft ό is connected to the guide rod 5 Connect 2 to connect the shock absorber 50 to the climber, and also to the ice and snow climbing. The extra parts of the power draw 52 and the pickle rope 69 are stored in the small bag 71 in the storage bag 5 between the rope braking device 100 of the shock absorber 50 and the bobbin 55. Try not to get in the way. It is advisable to lightly close the entrance of the pouch with the snake 72 and the hook 73 so that the guard rope and the pickle rope do not fly out of the pouch 71.

By the way, the top and last climbers adjust the rope braking force of the shock absorber 50 according to the conditions of the climbing ice and snow slopes. For details, pull out the scale] 9 board 5 8 and pull out the standby rod ό4 of this scale]? Board from the standby hole 05 ”at the“ 0 ”position, and rotate the scale board to change the scale]? Number“ 1 With reference to "7", engage the standby rod # 4 into the appropriate standby hole # 5. As a result, the standby rod 4 is fixed with respect to the second side plate having the standby hole, and thus acts as a stop for the projection 7 of the operation plate 57. In the unlikely event that the last slides down, the sails will be tense and the last braking rope will be replaced. 丄 5

Since the upper end of 19 is pulled, as in the case of the above-described embodiment, the cam rotates in the direction to increase the height of the mouthpiece by the contact friction force between the braking rope 19 and the cam 13, The working plate 57, which is attached to the camshaft 12, also rotates in the same direction. However, when the projection # 7 of the operating plate abuts on the set standby rod 64, the operating plate 57 stops at that position, and the rotation of the cam 13 stops accordingly. Therefore, the cam 13 faces the pressurized second shaft 5 at the height of the cam opening corresponding to the set position of the standby rod 4, and is brought into contact with the cam with a predetermined force according to the lobe height. A braking force is applied to the lobe between the pressurized second axis. Thus, a climber who has slid down will stop after having slid down a distance corresponding to the value set by the standby rod. If you want to reduce the sliding distance before stopping, scale] 9 panel 5 8 size number (for example, “0” or “7”) should be set to mark ό8, and the sliding distance is large. ¾If it is okay, you can set the small number to 目 8. Of course, the relationship between the scale number on the panel and the braking distance is predetermined at the time of device design or by a test. To facilitate the rewinding of the braking rope to the bobbin 55, a fastener 74 may be provided in the storage bag 5 # so that the bobbin can be exposed. Next, a preferred embodiment (FIGS. 14 and 15) of the pickle 80 suitable for use as the climbing shock absorber 50 of the above-described embodiment will be described. As shown in Fig. 14, this pickle 80 is fixed to the lower end of the shaft by a shaft 81 made of a hollow metal pipe, a pick 82 at the upper end of the shaft, and a pin 85. Spitze 85 having a spitze groove 84 in the middle. A rubber support ring 8 は is fitted on the upper part of the shaft 81, and the lower end of the shaft is replaced. A rubber sleeve 88 having a handle 87 is attached to the part. The rubber support ring 8 and the rubber sleeve 8 8 have vertical holes (not shown) for passing the rope 9 and vertical slits (not shown) that allow the lobes to enter and leave these vertical holes. ) Are provided], by inserting a pickle lobe ό 9 into these vertical holes], and holding the pickle lobe along the shaft. Pickel robe ό 9 The end of the skater is 8 with a savage knot 8 9 (the knot that tightens as the rope is pulled). ? And cover it with a rope protector 90. Due to such a configuration, the pickle mouth extends from the top of the pickle and the climber has the normal pickle in the state shown in Fig. 9, so the pickle robe is a hindrance to climbing activities. The special feature of this ice axle is that when the ice axle becomes a fulcrum to stop the downhiller, its supporting force is larger than the conventional one, and the support is stable. In other words, by Pickel! ) There are roughly two ways to support a sloping person: a method in which a pick is driven into the ice and snow surface as a fulcrum, and a method in which a spitze is driven into the ice and snow surface as a fulcrum. When the Pickel rope is pulled by the weight of the slipper, the Pickel rope is disengaged from the rubber support ring 8 mm and the vertical hole of the rubber sleeve and exerts force on the Spitze groove 84 at the lower end of the Pickel. One bite does not act and the biting force increases. Also, since the pickel rope acts on the spitze groove 84 via the sloppy knot 89, the left and right rotational moments do not act on the shaft 8, so that the posture for securing the tob becomes unstable.

Now, in the above situation, two climbers, top and last, Is climbing the ice and snow slope at the same time, and the last slipped. The shock absorber 50 is attached to the climber's waist belt 51 so that the shock absorber 50 can be easily detached from the climber 91 and the hook 92 (Fig. 11). ? A little longer. As the last slides down, the sails 70 are immediately tensed, the hooks 92 disengage and the shock absorbers 50 leave each climber. At this point, since Top knows that the last has slipped, he strikes the pickle on the ice and snow surface to take a secure or supporting posture. After that, the guard rod and the pickle mouth pop out of the small bag 7 1, but since the pickle robe is shorter, the pickle lobe is put on the rubber support ring 8 ό and the rubber sleeve 8 before the gas rod becomes tensed. It acts on the spitze groove 84 away from 8, and increases the supporting force of the pickle. During this time, no load is applied to the tob, so the top can be easily secured. After that, the braking lobes 19 connected to the sill are fed out from the respective braking devices 100, and the braking rope is extended while being braked by the braking force set on the scale i-58 so that the slipper eventually stops.

In the case of rock climbing, the ice and ice lobes are not used. Kama]? I support the slipper myself. Assuming that the supporting capacity is, for example, 80! ^, It is sufficient to adjust the scale with a scale so that it takes about 0 rope braking force.

As described above, in the lobe braking device 100 of this embodiment, if the rope braking force is adjusted in advance by the scale J plate, the lobe can be braked by the braking force when the device operates. .

One § 3 ' Next, the implementation of the lobe braking device of the present invention applied as a load cell

An example will be described with reference to FIGS. Load on Fig. 1 to 18

An example of the total is shown. This load cell 200 is a lobe brake according to the present invention.

The device 150, the outer shell 101 surrounding this braking device, and the load

Read the pointer 102 that moves according to the size and the value of the load

It consists of a scale plate 103 to be taken. The lobe braking device 150

In the embodiment of the first side plate 104, the second side plate 105,

The cam 10 and the pressure shaft 107 located between these side plates

It extends upward from the bottom between the plates and bends at the pressure axis 107

And then bends at the cam 10 0 わ] to extend vertically upward

Provide between the side plates on the same line as the lobe 108 and the vertical part of the rope

And a connecting shaft 109 connected to the load applying portion 110. Addition

The pressure shaft 107 is a ball bearing fixed to the support shaft 111.

Consists of ), So the pressure shaft in contact with the braking lobe 108 can rotate

It is. On the other hand, the cam 10 mm is fixed to the fixed support shaft 1 1 3 (cam shaft).

Ball bearing ring 1 1 4 fixed to the outer race of 4] 9

Therefore, the cam itself turns the camshaft 1 1 3! ). Power

And the support shaft 1 1 1 and the support shaft 1 1 1

The means for holding the plates 104 and 105 apart from each other may also be used.

No. The outer shell 101 surrounds the lobe braking device 150 and

It may be made of a suitable lightweight material such as talcite or cloth bag. Hotei

If it is made of stainless steel, it is better to close the lower end with fasteners 1 15 _c Scale i-plate 1 0 3 screws 1 110 Second side plate 105 or outer shell

Fixed to 1 0 1 Pointers 102 are cams with screw members 117 etc.

It is rotatably mounted on the protruding end of shaft 1 13. 2 A pointer support rod 1 19 extends through the arc-shaped slot 1 18 provided in the side plate 105 and the scale plate 103 to extend between the cam and the pointer.

Secured to cam 10 1. Therefore, when the cam 10 0 rotates, the pointer 102 also turns the same amount with the screw member 117). The shape of the force 10 0 is as follows: At the non-use position in Figs. 1 and 18, the height of the cam lobe portion Α facing the pressure shaft 107 is the smallest, and it turns left from this point A] 7 (Fig. 18).

The cam lobe height gradually increases up to the cam lobe part B

And the height of the cam lobe part further left from point B is almost

ぽ Is it constant j ?, from this constant curve and point A to the center of the cam

Cam lobe near the point of intersection G with a tangent drawn in an arc centered at

Height is at its highest. Therefore, the distance between the cam profile and the pressure shaft 107 is the largest at the non-use position (Fig. 18).

Then the cam 100 and the pressure shaft 1 107 apply pressure to the braking lobe between them.

Not added. At this time, the pointer 102 should be

[Scale] Pointing to a slight minus from the "0" position on the 9th plate. Now

Hang the load cell 2 0 0 with the knot 1 2 0 at the upper end of the braking rope

Then, the upper part of the braking rope 1 08 α is based on the weight of the load cell.

The cam is turned clockwise due to the friction between the cam and the rope.

(Fig. 18). At the same time as this rotation, the pressurizing shaft 107

The distance between the cam and the cam is too small.]?

The braking force on the moving lobe gradually increases, and the tension and the braking force are flat.

The rotation of the cam stops at the time of equilibrium. At this time, it is designed so that the pointer 102 points to the “0” position of the scale plate. Where load negative

When a load is applied to the load section 110, the tension in the upper part of the braking lobe 108a

WiPO ノ The force is equal to it], and the cam 107 rotates further in response. The more the cam rotates, the smaller the distance between the cam and the pressurizing shaft, the more the braking force on the braking rope increases, and the rotation of the cam stops when the braking force and the load balance. By appropriately selecting the cam profile, the increase in the load and the increase in the rotation angle of the cam can be linearly proportional, for example, to the scale shown in Fig. 1 [3]. Since the pointer does not return even if the load is removed from the load application section 110, this load cell is the maximum load cell. After removing the load, the pointer can be easily returned to the “0” position by hand. Since the braking rope 108 is deformed by the pressure of the cam and the pressure shaft, when the load cell is used repeatedly, the rope may be made of an elastically deformable material. Teens! ? In addition, the pressure shaft 107 may be made of rubber with a panel elasticity bias type, and a rope that is difficult to deform may be used. Figs. 19 and 20 show another deformation of the load cell. Examples are given below. In the modification of FIG. 19, in addition to the cam and camshafts 100, 115 and the pressure axis 107, a rope bending axis 21 is also provided to make the extreme In addition to this, the cam 10 mm is fixed directly to the force shaft 113, the cam shaft is rotatably mounted on the side plates 104, 105, and the pointer is fixed to the cam shaft. In addition, the lower end of the rope 108 is wound around the lobe winding core 122. Other configurations are substantially the same as the load cells shown in Figs. 20 is different from that of FIG. 19 in that two braking lobes are inserted between the cam 10 and the pressing shaft 107. In the modification shown in FIG. Other configurations are substantially the same as those in FIG. The advantage of this load cell in Fig. 20 is that it is equivalent to the compression of the brake rope. Therefore, the ratio of the measurable load to the compression amount of the braking lobe can be increased.

As described above, the load cells shown in Figs. 1 to 20 are extremely simple in structure and small in size, so they are inexpensive. It goes without saying that a hook or the like for hooking a load can be used instead of the load application section 110 shown in the figure.

Finally, still another embodiment of the rope braking device of the present invention will be described with reference to FIG. 21 and FIG. The lobe braking device according to these embodiments operates in substantially the same manner as the rope braking device shown in FIGS. 1 to 4 ¾ operates in principle, but has an automatic braking function in addition to the manual braking function, and has a manual It has a configuration that allows automatic selection of automatic. More specifically, in the embodiment shown in FIGS. 21 to 24, the cam 130 fixed to the cam shaft 12 has the lowest portion A of the cam lobe at the rest position shown in FIG. Facing the second shaft 5, in this position the cam 130 and the second shaft do not apply pressure on the braking rope 19 between them. The lobe of cam 130 gradually increases in height from point A to clockwise i ?, and at point B the height of the cam lobe becomes maximum. Therefore, as the cam 130 rotates counterclockwise from the position shown in FIG. 21, the distance between the cam 130 and the second shaft 5 becomes narrower, and the braking force on the rope increases accordingly. The lever 14 is fixed to the shaft 12 of the cam 130 in the same manner as in Figs. 1 to 7], and the lever 14 is moved to the left (Fig. 21). Can be used to brake the lobe. Since the screw 10 also serves as a stopper for the lever 14, the lever 14 can be rotated to the right from the position shown in FIG. 21. Replacement of lobe braking device of this embodiment The device so α is a device that automatically keeps the braking force on the lobe within a predetermined range (hereinafter referred to as a speed operating device) 1ό0, and this device 1ό0 mainly consists of a hydraulic clutch. To explain the structure of this hydraulic clutch, 1ό1 is an outward gear that serves as the clutch slave shaft, which is fixed to the force shaft 12. 1 12 is the outer ring that serves as the clutch main shaft and also serves as the sprocket wheel. Its center of rotation coincides with the center of the camshaft. Reference numeral 5 denotes an inward gear that is coupled to the outward gear 101, is rotatably mounted inside the outer ring 1-2, and its rotation center is eccentric with respect to the center of the cam shaft 12. Reference numeral 104 denotes a meson, which is fixed to the outer ring 1 and 2 and has an oil hole (may be a groove) 105. The first shaft 4 for bending the rope has a second sub-blocking wheel 1ό9 attached to it, and a belt 1ό7 extends between the two sprocket wheels 1ό2, 1ό2. In the mouth brake device 300, when the descender starts descending, the brake port is extended upward, so that the first lobe bending shaft 4 is rotated (left-handed) by frictional force. Outer ring 1ό2 also rotates counterclockwise. Since the outward gear 1ό1 does not rotate at this time, the oil pressure in the oil chamber 1ό8 increases. The oil in this room escapes from the holes 1-5, but the oil pressure in this room increases as the rotation speed of the rope bending first shaft 4 increases, and as the oil pressure increases, the outward gear 1--1 moves the outer ring 1-2. The rotation force to rotate to the left increases, and finally the cam 130 starts to rotate in the counterclockwise direction. When the cam 150 rotates, a braking force acts on the lobe 19, thereby reducing the rope feeding speed. As a result, the rotation speed of the rope bending first shaft 4 also decreases, and the hydraulic pressure for rotating the arm leftward also decreases. Then, the cam 150 is changed Due to the frictional contact force with the mouthpiece 19, it turns clockwise and weakens the braking force on the rope. Therefore, the lobe feeding speed and the rotation speed of the first shaft also increase again, and the oil pressure in the chamber 1ό8 increases again. In this way, the lobe braking force is automatically maintained at a value within the predetermined range, and eventually the descending speed is also automatically maintained within the predetermined range. If you switch to manual operation, you can operate the lever 14 manually, regardless of the automatic operation.If you want to stop, turn the lever 14 to the left counterclockwise. A magnet (not shown) is brought into contact with magnets 1ό9 fixed to the side plate. When the levers 1-9 are released from the magnets 1-9, automatic operation is resumed.

FIGS. 25 to 27 show still another embodiment of the speed actuator.

In this embodiment, the speed actuating device 180 is constituted by a gear pump, and its structure is such that a second side plate 3 is provided with an oil chamber 181, which is shaped like a fin, and in which a driving gear 18 And the driven gear 1 83 are rotatably stored without play, and the oil chamber is filled with oil. Drive gear 1 82 is fixed to the rope bending shaft 4, and driven gear 18 5 is camshaft

Rotatably attach to 1 and 2. The camshaft 12 has a drive rod.

1 84 is also stuck. Reference numeral 1885 denotes a hydraulic holding plate, which is fixed to the second side plate 3 via an oil seal. Hydraulic holding plate

The horseshoe-shaped recess 187 is provided in 185, and the drive rod 184 is about 150 in this recess. Manual movement is possible. Recess 1 87 is the oil chamber 18 1 at the sections 1 88 and 1 89

It is in communication with 90, 191. 192 is an oil groove, 195.194 is a shaft seal 0-ring.

The operation of this speed actuator 180 is almost the same as that described above ^. F G?.: P,

V, · "o.,

, One-,. ヽ ■ '

Then ^ 'z You. Briefly, when the lobe bending shaft 4 rotates, the driven and driven gears 18 2 and 18 5 rotate in the direction of the arrow, and the oil pressure in the chamber 190 rises. The hydraulic pressure of the left chamber 19 5 of 8 7 is higher than that of the right chamber 19 0] 3 higher ¾ i ?, rotate the drive rod 18 4 to the left, and consequently rotate the cam to the left to apply braking force to the rope. . As a result, the rotation speed of the bending shaft decreases, and the cam returns. The braking force is automatically adjusted by this repetition.

In a further embodiment shown in FIGS. 28 and 29, the speed actuating device 210 is of the clutch brake type, which is loosely attached to the drive wheel 21 fixed to the lobe bending shaft 4 and to the cam shaft 12. The driven wheel 213 connected to the wheel 2 11 1, the brake wheel 2 14 fixed to the cam shaft 12, and three at equal intervals on the circumference of the cam shaft The brake piece 2 15 provided, the operating rod 2 16 fixed to the driven wheel, the driven hole 2 17 provided on the brake piece and fitted with the drive rod with appropriate play, the driven wheel and the brake And a compression spring 218 that is located between the two and presses the brake piece against the brake wheel.

2 19 is the lining of the brake. The operation of this device is almost the same as described above! In short, when the rope bending shaft 4 rotates, the drive wheel 211 rotates, the driven wheel 21δ also rotates, and the brake piece 215 rotates by the drive rod 21ό. Since the brake piece is pressed against the brake wheel by the compression spring 218, a rotational force is generated on the brake wheel 214, and as a result, the cam rotates to compress the braking lobe and generate a braking force. . As a result, the rotation speed of the rope bending shaft 4 decreases, and the cam

'-,- ¹ ,'-, Return. The above operation is repeated to perform automatic braking.

Replacement ^{f 0 PI}

Claims

The scope of the claims

Two side plates which are held parallel to each other at a fixed distance from each other; a driving cam rotatably mounted between these side plates at a position substantially at the center of the side plates; The lobe bending first shaft mounted between the side plates at a position far away, and the lobe mounted between the side plates at a position separated by a predetermined distance from the driving cam and relatively far from the lobe bending first shaft Enter between the pressure second shaft and the side plate from above.] 9 Next, the brake lobe is bent by the second bending shaft for the bending of the mouth, and then extended to the outside of the side plate through the moving cam and the second shaft for the pressing force. ]), The lobe height of the cam gradually increases from a predetermined point on the cam contour toward a second predetermined point in a predetermined rotation direction, and as the rotation cam rotates in the predetermined direction, the cam and the lobe height increase. A mouthpiece brake device characterized in that a braking lobe between the pressure second shaft and the second shaft is gradually pressed to generate a gradually increasing braking force.