JPS6085761A - Rope brake - 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] Due to fires, earthquakes, etc. in buildings with two or more floors or elevated roads,
At any moment, you may be forced to close the windows of a building or beg to escape from the road. In the excitement of descending for an emergency evacuation, it is strange that two people each carry their own toiletries, just as if they were carrying them in a travel bag. To achieve this, the descender must be small in volume and light.

The device according to the present invention allows the escaper to descend after escaping, but conventional devices for this purpose have the escaper descending while operating the speed adjustment lever. There are two types of devices: devices that allow the escaper to descend automatically and at a nearly constant speed without any help from the escapee. It seems that it passes through places where it is present at a rapid speed.

The monkey may stop above it and enter through the window of a safe room. The characteristic of the latter is that there is no need to worry about manual operation. Now, the invention is related to the device that can be selected between manual and automatic lowering. Characteristics include the following: If the rope seems to be loose during escape, a normal escape @ Nobu will be subject to a shock force similar to that of a person, and the upper fulcrum may fall off, or the escapee may faint or lose consciousness. Tension greater than a pre-determined safe tension will not be applied.In addition, in the case of a non-equipment, the escapee will be descending with the help of a rope, so there is no risk of harm to others caused by dropping the rope or drum. do not have.

One Embodiment of the Present Invention> This will be explained with reference to FIGS. 1 to 9. In Figure 1, ■ indicates a descending rope, which is made mainly of flame-resistant vinyl fibers such as wire rope or Kevlar rope. In non-example, Kevlar double stroke, diameter 4.7 milJ
I'm begging.

2 is a hook for connecting the descending rope to a fixed fulcrum. The entrance 5 of the hook is smaller than the diameter of the descending rope, but since the section 18 is thin and elastic, the descending rope can easily pass through.

Reference numeral 8 denotes a rope brake that brakes the descending rope, which will be described later.

The small lever is used by the escapee to manually lower the rope, and the edge protection band 6 is movable relative to the descending rope, as shown in Figure 4.

One end of the edge protection band is lightly locked with a rope brake type 8Vc by a protection band support screw 71C. At the time of escape, as shown in FIG. 8, the edge protection band automatically remains at the edge 8IC of the window, preventing the strength of the descending rope from decreasing at the edge. ff11 Reference numeral 9 in the figure is a pants-type evacuation body support device worn by the escapee. 10 is pants, 11 is main belt, 1
2 is a seam part and the upper part thereof is a family belt 14. 15
1 is a shoulder belt, and 16 is a rope adjuster for adjusting the length of the shoulder straps 1 to 1. 17 and 18 are the knobs on your pants when you pull them off.7 To avoid confusion, the knobs 17 and 18 that you hold with your right hand and the knobs 18 that you hold with your left hand are distinguished by color and size. 19 is a hip belt connected to the main belt. The impact force during escape is supported by the main belt and hip belt. 2
0 is a small bag with Velcro 21 sewn on the top. The sachet has a rope brake type8. Hook 2. Edge protection belt 6.

Although most of the shoulder held 15 and main belt 11 are stored in the
Only the part 22 near the center of the shoulder strap protrudes from the center path of the pouch. It is intended to be worn promptly and without error in an emergency. 24 is a rope storage device that serves as a bobbin for storing 7 windings of the descending rope. 25 is a storage bag for storing bobbins, but normally it also serves as a storage bag for the entire device. The bobbin 24 is connected to the storage bag 2 by a two-rotation shaft 26.
5 and is rotatably held. The storage bag is opened and closed with a zipper 27. Seki is a sling for hanging the storage bag from the main belt. Further, the descending rope between the rope brake and the storage bag is covered with a dust-proof and flexible pipe 29. Also, 30 is a head rung. The weight of this example is about IK9° for the 7th floor, so it can be stored in one corner of a travel bag.

Next, the lobe brake will be explained with reference to FIGS. 5 to 9. The housing 32 consists of a first side plate and a second side plate. 35, 36 and 88 are both side plate fixing screws consisting of a collar and screw.

Both side plates Z are fixed at equal intervals. The barrier also serves as a connecting shaft and is connected to a family belt 14 that supports the weight of the escapee. Further, a spring bearing surface 89 shown in FIG. 7 is fixed to the second side plate 34 to partially stop the compression force. Reference numeral 41 denotes a rope bending shaft which can be freely rotated with respect to both side plates. 42 is a camshaft which is swingable on both side plates. The female is attached to the camshaft by a cam. 44 is attached to both side plates with pressure 1i+b. The mounting method will be described later. 7 is the protective band support screw. Next 46
is fixed to the rope bending shaft with a clutch plate. 47 is a clutch element which is screwed into the clutch plate. Tsuge is a centrifugal cuff lunch slave shaft that can rotate freely around the rope bending shaft and has a rotational force transmission wheel 497.
& stick. clutch plate.

The clutch element and centrifugal clutch main body constitute a centrifugal clutch. That is, the clutch plate corresponds to the original shaft of the centrifugal clutch, and the centrifugal cuff clutch slave shaft corresponds to the slave shaft of the centrifugal force clutch. This will be explained with reference to FIGS. 8 and 9 (both are enlarged views). The 8 clutch elements are the clutch main body 50. Clutch auxiliary body 51 and Hibari spring 52
Consisting of The clutch main body is swingable around a fulcrum 53, and the clutch auxiliary body is swingable around a fulcrum 54. The sleeve 55 is a notch provided in the centrifugal cuff lunch slave shaft 48, into which a clutch main body pawl 56 is fitted. 57.
58 and 59 are stoppers. The operation P of the centrifugal opening will be described later. Now, 60 is the cam drive plate, and the distance between the dosa cam that is fixed to the cam shaft and the pressure shaft is 5.
The state of the ward is the maximum. The inward drive section engages in frictional transmission with the rotational force transmission wheel 49. Also, the cam drive plate has a seventh
The spring receiving plate 62 shown in the figure is fixed. When the cam drive plate is in the position shown in Figure 7, the spring receiving plate is compressed, but the cam drive plate is in the position shown in Figure 7, except for the part where the descending rope and family belt enter and exit. A cover is provided to prevent dust.

Further, the descending rope ■ serves as a link between the rope brake and the fifth section I. When the cam drive plate 60 is positioned as shown in FIG. 7, the distance between the cam guide and the pressurizing shaft 44 is adjusted so that the lowering rope can be easily moved in the direction indicated by It's a monkey.

As the cam drive plate Z is rotated 119 clockwise from the seventh factor position, the distance between the cam and the pressing shaft becomes smaller, and the braking force against the descending rope becomes larger. Also, the cam is 66
Since the distance from the center of the camshaft to the periphery of the cam in terms of is the maximum and none.

When the descending rope moves in the direction R in Fig. 5, if there is no cause to prevent the rotation of the cam, the cam will rotate in a clockwise direction and the braking force on the descending rope will be reduced.
The escaper's descent speed is reduced. In addition, in this device, the two descending ropes overlap at 8 points in Fig. 5, the upper descending rope is pushing the lower descending rope, and the smaller the angle R8T at which the upper descending rope is bent, the lower the upper ↑ The force exerted by the descending rope on the lower descending rope 7 increases, and the braking force against the descending rope becomes weaker. Corner R8T
is called the braking angle. This mechanism is one of the features of this device. In addition, in a non-equipment, ropes moving in opposite directions contact each other at two places and press each other to create a friction force. All of these are the reasons why this device has a simple mechanism and has great braking power.

Next, the movement of the centrifugal opening mechanism will be explained with reference to Fig. 8 and Fig. 9. In both the clutch main body and the clutch auxiliary body, a portion with a large mass and a portion with a small mass are located in opposite directions of the swing fulcrum.

Therefore with the increase of clutch plate rotational speed.

The clutch main body and clutch auxiliary body have a clockwise rotational force due to centrifugal force! Increase. Also, the two are pulled together by a tension spring in the large part of the poem. Further, although the clutch main body and the clutch auxiliary body come into contact as shown in FIGS. 8 and 9, the friction at the contact portion is not small. Now, the eighth part shows that the rotation speed of the clutch plate is low.

At this time, since the centrifugal force is small and the spring is tight, the claws of the main body of the clutch are caught in the notches of the centrifugal hook slave shaft, and the centrifugal hook slave shaft rotates together with the rope bending shaft. f', that is, the centrifugal force clutch is locked. Next, as the rotational speed of the clutch plate increases, the clutch main body rotates in one direction, and the pawl separates from the notch. Furthermore, the clutch auxiliary body ♂ rotates in the direction of rotation as shown in FIG. 9. In other words, the centrifugal mechanism is in an idle state.

Next, as the rotational speed of the clutch plate decreases, the centrifugal force becomes smaller, and the clutch main body tries to rotate clockwise, but it does not rotate because of the clutch auxiliary body. On the other hand, the clutch auxiliary body rotates to reduce the centrifugal force, and at the moment the clutch auxiliary body separates from the clutch main body, the clutch main body rotates clockwise and the pawl engages with the notch. If the clutch auxiliary body is not present, as the rotational speed of the clutch plate decreases, the pawl repeatedly comes into contact with and repulses from the centrifugal clutch notch slave shaft, making it difficult for the pawl to engage with the notch. In addition, the shape of the notch is as shown in Figure 8, and when the clutch plate rotates in the direction of the arrow, the clutch plate transmits rotation to the centrifugal clutch slave shaft, but when it rotates in the opposite direction, the clutch plate rotates. I can't tell you. In other words, it is a one-way clutch mechanism.

Next, the connection with the first side plate and second side plate for the lJI Hikawa axis will be described. The descending rope deforms under the pressure of the cam and the pressure shaft, and the deformation mainly includes elastic deformation and plastic deformation.

In the first case, the braking is due to frictional force, and in the latter case, the energy required for plastic deformation is more involved than the frictional force. The pressurizing shaft and both side plates are preferably fixed in the former case, and may be rotated in the latter case.

The feature of the latter is that the braking force is stable, but when used repeatedly, the braking force decreases and the braking method is replaced by the former braking method. Also, the characteristic of the braking of this rope brake is that the friction between the ropes is considerably large.

Next, the operating sounds of the entire device will be explained. Emergency evacuees should take out the storage bag T from their travel bag and carry the necessary Araba Head 971.
Put it on two heads. I opened the zipper and grabbed the panties without making any mistakes.

I put a bell on my shoulder while wearing pants. Then attach the hook to the second
Tie it to a fixed fulcrum (in a room, the best fixed fulcrum is a pair of knobs on the front and back of a door; on the road, it's part of a car) and walk to the window, holding the rope brake. At this time, the escapee puts his index finger 2 on the moving groove 67 shown in FIG. 7 so that the cam drive plate is positioned as shown in FIG. If the cam drive plate is
When the centrifugal lock is in a position rotated clockwise from the position shown in the figure, since the centrifugal lock is a one-way clutch, it is easily rotated counterclockwise to the position shown in Figure 7. Figure 2 shows the escapee's posture when jumping out of the window. The automatic operation will be explained below. If the escapee jumps down, the descending rope will be let out and the rope bending shaft will rotate.

Since the centrifugal lock is locked, the 9 rotational force transmitting wheel cutter rotates, and the cam drive plate attempts to rotate in a direction opposite to It1#1 in the direction of FIG. However, the cam drive plate cannot rotate because of the compression spring.

The rotational force transmission wheel, that is, the friction transmission part slips.

Since there must be no slippage between the rope for skidding and lowering and the rope bending shaft, there should be sufficient friction, such as small irregularities on the peripheral edge of the rope bending shaft. On the other hand, the falling speed of the escapee becomes slower, the rotational speed of the clutch plate becomes slower, and the centrifugal force clutch changes from a locked state to an idle state.

At this time, the repulsive force of the compression spring also acts, causing the cam to rotate around 51 hours toward FIG. 5, and the descending speed of the escapee decreases. Next, the centrifugal lock is locked and the cam drive plate is rotated in the opposite direction of the clock as shown in Figure 7, increasing the escaper's speed by 2. It descends while repeating this. Next, the case of manual operation will be explained. When trying to turn the lever to the right or left by hand.

Even when the centrifugal force clutch is locked, the friction transmission part slips, so one-time operation is possible. In this way, you can freely select automatic or manual mode. For example, when it is automatically lowering and you want to stop, you can lower it all at once to the bottom of the lever. However, if you want to descend again, move the lever up and release hand Z after the descent begins, and the descent will be automatic.

With this device, when the total weight of escapees is less than If)Kf, it is possible for multiple people to descend at the same time. At that time, the accompanying person must wear a pants-type evacuation body support device, the main belt of the accompanying person, and the family belt 14 of the main escapee.
and 7 combine.

Next, referring to Figures 10 and 11, we will explain another embodiment of a rope brake for manually or automatically controlling an escapee while descending. The differences between the cam drive plate 70 and the cam drive plate 70 are described below. A lever 78 is fixed to the camshaft in FIG. 1O.A switching ring 74 is installed on the lever. When the lever and the cam drive plate are in an idle state, the operation is manual, and when the lever claw 75 and the teeth 72 of the cam drive plate are moved in the opposite direction to the switching ring arrow, the operation is automatic. An example of the ring mechanism is shown in Fig. 13. Reference numeral 76 indicates a projection of an elastic body, and this projection fits into a recess 77 or 78, and the switching ring is locked at each position. 1 is a positive clutch with a large pawl catch, but in FIG. 10 it is a friction clutch as in FIG. 12.

That is, when the rotational speed of the clutch plate 8 is small in FIG. 12, the clutch element 82 is pressed against the centrifugal clutch slave shaft 83 due to the compression spring 81, but if the rotational speed becomes low, the centrifugal force Therefore, the clutch element separates from the centrifugal cuff lunch slave shaft.Also, in the sixth case, the rotation of the centrifugal cuff lunch slave shaft is transmitted to the cam drive plate by friction transmission, but in Fig. 10, it is gear transmission. Either method may be used.

Next, still other embodiments of the present invention will be described with reference to FIGS. 14 to 17. First of all, is there a difference in mechanism between this device and the devices shown in Figures 5 to 9? write down The positions of the camshaft example and the pressurizing shaft 85 in Fig. 14 have been switched compared to those in Fig. 5. Further, the pressurizing shaft in the case of FIG. 14 is fixed to the housing 861C. The cam 87 and lever 99 are integrated. When the rotational speed of the rope bending shaft 89 is low, the centrifugal lock 88 is in an idle state, and when the rotational speed is above a certain level IC7,
(The cam drive plate 9() has an outward drive portion 917a' and is in circumferential contact with the rotational force transmission wheel 92.A spring support rod is fixed to the housing and one end of the spiral spring 5-)4. t
tl stop. The other end of the spiral spring is fixed to the camshaft 84. This spiral spring moves toward the lever 99χ in FIG.
Rotate 1 clockwise and apply 1M original force to the π sharpening lever. Next, in Figure 17, 96 G'! The pawl receiving plate 97 is fixed to the camshaft, and the pawl 97 is swingably mounted on the housing.
8, the moment is always exerted clockwise. When you turn the lever by hand all the way around the 1st needle in the direction shown in Figure 14, the knob 1 (11')
& Move the nail to remove it from the notch. Claw receiving plate, pawl, spring,
The notch and knob are a lever strike knob mechanism. The lever stoke knob mechanism may use a known magnet sound. If the engagement of the centrifugal clutch is not by friction transmission but by a positive clutch using pawls and notches, or if the descending speed of the escapee is high, cushioning will be required in case of engagement. In that case.

Although not shown in detail, for example, there is a loud damping splash between the centrifugal force clutch slave shaft and the rotational force transmission 4, or between the cam drive a camshaft.

Next, the operation will be explained. The lever is restricted due to the spring 94! l1
Move while pulling out the descending rope from the JI device. Then jump out the window. This centrifugal cuff latch is in an idle state. The descending speed of the escaping person increases until it becomes a substantially constant speed, the K-shaft centrifugal cuff latch is locked, the cam rotates in a direction in which the distance between the cam and the pressurizing shaft becomes smaller, and the descending speed of the escaping person becomes smaller. Next, as the centrifugal cuff lunch changes to an idle state, the cam is rotated due to the spiral spring restoring force.

Rotate in the direction that increases the distance between the cam and the pressure shaft.

do. If the evacuee desires a manual operation sound, he or she can simply rotate the lever Y. When it stops while descending, the lever should be turned downward all at once. After it gets caught in the notch of the claw holder KFJ-, the lever will no longer release ft, which will prevent the lever from operating, for example, when breaking in through a safe window. conduct. If the lid goes down, turn the knob Y.
Remove the TaJ rivet claw from the notch, then move the bar upward. When it starts to descend, release the lever and it will be automatically operated.

In accordance with the present invention, the device for descending is not only for personal use, but is also made larger, and the rope is made thicker so that it can be used as a fixture in households living in high-rise buildings, and can be used as a 1-rank vehicle at all times, allowing multiple people to descend at the same time. However, the interest is LH. In this case, a prefabricated gondola is suitable as the body support for evacuation.

[Brief explanation of drawings]

Fig. 1 is a sketch showing the configuration 2 of an embodiment of the present invention, Fig. 2 is a sketch of an escapee trying to jump down from a window using a device, and the 8th drawing is a sketch immediately after the escapee has jumped down. A sketch of the state of. Figure 4 shows the state in which the edge protection belt is locked with the protection belt support screw, and Figure 5 is a cross-sectional view of the rope brake.
- The diagram cut at A, Figure 6 is also Figure 5 713-1
3, JJ section, No. 7 is a view looking from the right towards the 6th ward, and Fig. 8 and 9 are views taken along C-C of Fig. 6 (enlarged view). No. 10 is a sectional view of another embodiment of the rope brake according to the present invention, taken along line 7E-JJ in FIG. The 11th figure is a view from the right facing the 10th figure, the 12th figure
Figure 1 is a cross-sectional view of the switching ring shown in Figure 11, and Figure 14 is a cross-sectional view of the switching ring shown in Figure 11. In the example, Fig. 15 is a diagram cut at 7E.
Figure 16 is a view taken from the right side of Figure 15. Figure 17 is a stoke knob mechanism for stopping the rotation of the lever from the left side of Figure 15. A view. 1 Lowering rope 6 Edge protection belt 7 Protection belt support screw 9 Pants-type evacuation body retainer 11
Main belt 14 Family bell 1-19 Hip bell)
24 0-de storage container (bobbin) 25 Storage bag 33
1st side plate 84 2nd side plate 89 Spring receiving image 4L89 Lorz bending support 447L 84 camshaft 48
87 Cam 4485 Pressure shaft 40 &) Clutch plate 82 Clutch element 4883
Centrifugal clutch slave shaft 92 Rotational force transmission wheels 6(] 7(
190 Cam drive plate 61 Inward drive section 417899 Lever 67 Transfer wJ groove + figure No. 11 Rod 7 figure Kaya/G group

Claims (1)

[Claims] 1. The cam shaft 4 is swingably mounted near the center toward the front of the housing 82 to which the first side plate and the second side plate 84 are attached.
2, which is fixed to the camshaft as a cam, and near the periphery of the camshaft S [clockwise the connecting shaft 88. Rope bending shaft 41
and a pressurizing shaft, the connecting shaft being located near a lower side of the housing, and the cam. The rope bending shaft, the pressure shaft, and the connection shaft are arranged such that the end of the lowering row 11 to be braked is inserted into the rope bending shaft from the upper left and engaged with the shaft. , the descending rope is bent at an appropriate braking angle at the rope bending axis, then counterclockwise along the periphery of the cam without bending, and then clockwise along the periphery of the rope bending axis. The cam drive plate 60 having a lever 4'Y is bent so as to pass completely between the cam and the pressurizing shaft, and then raised to the cam shaft. The shape of the cam is such that the distance between the cam and the pressure shaft becomes gradually smaller as the lever rotates from near the top of the housing to near the bottom in one rotation. Further, a centrifugal kakura no chiri original shaft 46 is fixed to the rope bending shaft, and a centrifugal kakura no chi's slave shaft 4 is fixed to the rope bending shaft.
8 indicates 01j.
The original shaft and the slave shaft in I are in an idle rotation state, and the rotation direction of the cam drive plate in fiif due to the slave shaft t of the centrifugal opening is + +i'+f The distance between the cam and the surface cam pressure shaft is narrowed. A rope braking abutment used for emergency evacuation, characterized by a direction. 2. Scope of Claim 1: The Cv tiif cam and the D11 pressure shaft alternate in position, and the pressure shaft is fixed to the housing, and the centrifugal opening is fixed when the rotational speed of the rope bending shaft is small. The main shaft and the slave shaft of the centrifugal capacitor are in a state of free rotation, and when the rotational speed of the rope bending shaft reaches a certain level or more, the main shaft and the slave shaft of the centrifugal capacitor are locked. - The rotation direction of the cam drive plate by the slave shaft of the yoke latch is the direction in which the distance χ between the cam and the pressurizing shaft is decreased, and a spring device is provided between the housing and the cam drive plate, and A rope brake used for emergency evacuation, characterized in that the Ic is configured such that a force acts in a direction opposite to the rotational direction.