JPS6122870A - Elevator apparatus - 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 an elevating device equipped with a rope, a drum, and a braking mechanism, which is suitable for application to, for example, an evacuation device in the event of a building fire or a climbing device for mountain climbing.

In a conventional evacuation device in which a wire rope is wound around a drum, as shown in FIG. There is a problem where it swings left and right within the range of . Therefore,
The disadvantage of this type of device is that it is not actively used because the user who attaches the device with the built-in drum 2 to his or her body experiences great psychological turmoil and is preceded by a sense of psychological fear even when descending from a not-so-high position. There is.

In addition, when descending using the device mentioned in section 2, there may be cases where the specified braking state suddenly cannot be maintained, and at this time, the user's psychological turmoil reaches the maximum and the user suddenly stops. It may be difficult to take immediate action.

In view of this, the present invention provides a rope regulation guide that minimizes the swing of the entire device including the drum due to the left and right swing of the rope when winding or unwinding the wire rope around the drum, and also provides a rope regulation guide that minimizes the swing of the entire device including the drum due to the swing of the wire rope from side to side. To propose an elevating device that allows users to actively use this type of elevating device without feeling psychological fear, by configuring it so that emergency braking can be operated without error even in situations such as The main purpose is

An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is an external perspective view showing an example of the present invention.

1 indicates a wire rope, which extends upward from a drum installed inside the housing 13.

A board, actually a breastplate plate 3, is screwed onto the housing 13, and a saddle 4 and a belt 5 for holding the body are attached to the breastplate plate 3.
is firmly attached. The saddle 4 is fixed so that the seat is fixed, and the belt 5 is a one-touch belt stopper 5g, 5b.
It has a structure that allows for firm engagement. A rope winding handle 6 is removably provided on the right side of the housing 33.
This is removed when used exclusively for descent. The wire rope 1 is provided with a cover 7 which has a built-in rope regulation guide that protrudes from the top of the housing 13 at a certain length, and a detachable cover 7 is provided on the left side of the cover 7 to regulate and brake the rotation of the drum during descent. A brake lever 8, which can be screwed in place, is installed. Reference numeral 9 indicates a locking device provided at the tip of the connecting wire, la (, tap 1) of the brake lever 8.

FIG. 3 is a sectional view taken along the line 1-I in FIG. 2, and is a transverse sectional view centered on an axis parallel to the breastplate plate 3. The lobe 1 passes through a rope regulation guide 10 provided in the cover 7 and is wound around the drum 11.
It is composed of a set of rollers 12, and is guided while being held between the rollers 12 having a concave circumference as shown in FIG. Each roller 12 is rotatably or fixedly attached to a shaft 13 supported by the cover 7 divided into two. In this case, one set of rollers 12 has a lobe as shown in FIG. 1, the first and third rollers 12a, 12c and the second glue roller 12
1] and the second roller 12b is slightly narrower than the first roller 12b.
and the third roller 12c. Therefore, the frictional resistance between the lobe 1 and the roller 12 becomes large. Two or more sets of three rollers 12 can be provided depending on the size of the lifting device.
Reference numeral 14 indicates a screw for integrating the divided cover 7, and reference numeral 15 indicates a screw for fixing the cover 7 to the chest plate 3.

The drum 11 has right and left bearings 16 installed upright on the chest plate 3.
It is fitted onto a fixed shaft 17 horizontally suspended, and internal gears 18 and 19 are provided on the flanges on both sides, respectively. The internal gear 19 includes a sun gear 20 fitted to the shaft 17, as shown in FIG.
Three planetary gears 21 are disposed between the two, and a so-called planetary gear mechanism is adopted. Reference numeral 22 indicates a support shaft of the planetary gear 21 that is mounted on the flange 1'/a that is integrally provided with the shaft 17.

Therefore, as the drum 11, that is, the internal gear 19 rotates clockwise, the sun gear 20 rotates counterclockwise.

In FIG. 3A, the internal gear 19 further includes an internal gear 1.
Friction plates 24 fitted with a number of teeth corresponding to 9, and friction plates 26 fitted into a sleeve 25 also formed integrally with the sun gear 20 are assembled in an alternately stacked state. Therefore, as the drum 11 rotates clockwise, the friction plate 24 rotates clockwise, and the friction plate 26 rotates counterclockwise. Frictional resistance will further increase.

6 is a sectional view taken along the line Vl-Vl in FIG. 3, FIG. 7 is a sectional view taken along the line ■-■ in FIG. 3, and FIG. 8 is a sectional view taken along the line ■-■ in FIG. By operating the lever 8, both friction plates 24,
26 is a diagram illustrating a mechanism for braking the drum 11 by the brake 26. FIG. In FIG. 8A, the other 9 of the connecting wires 9
A is fixed to one end of a shift lever 30 that rotates around a pin 29 that is set up on a support plate 28 that projects from the bearing 16 . The other end of the shift lever 30 is engaged with a shifter 31 that is slidably fitted in the shaft 17 in the axial direction, and a press pin engagement disk 32 is integrally fixed to the shifter 31. The engagement disc 32 is provided with six holes 33a on its circumference in which the friction plate suppressing pins 33 engage.

The friction plate pressing pin 33 has holes 3 bored at six locations on the circumference in the side surface of the pressing pin guide 34, as shown in FIGS. 3A and 6.
4a. It goes without saying that one end of the suppressing pin 33 is aligned with the position of the hole 34g. The pressing pin 33 passes through a hole 35a formed in the internal gear support plate 35 and is in contact with the friction plate 24, and the other end is provided with an engaging disc 32.
A snap ring 36 is engaged to prevent it from coming off.

The pressing pin 33 is composed of a large diameter portion that fits into the internal gear support plate 35 and a small diameter portion that fits into the suppression pin guide 34, and is formed between the suppression pin guide 34 and the stepped portion of the pressing pin 33. A compression spring 37 is interposed between the two. Therefore, under normal conditions, the pressure pin 33 is pressed against the friction plate 24.2 by the pressure of the compression spring 37.
6 is maintained, and thus the rotation of the drum 11 is braked. Of course, the compression spring 37 must be adjusted appropriately so that the rotation of the drum 11 is damped even when the weight of a person is applied.

Furthermore, sealing oil is sealed inside the friction plates 24 and 26, which are partitioned by the internal gear 19 and the internal gear support plate 35, and the planetary gear device is built in, which improves the braking effect and wear of the friction plates 24 and 26. Contributes to the prevention of damage. Therefore, the opening between the shaft 17 and the drum 11, and the gap between the shaft 17 and the suppression pin guide 34,
A seal ring 38 is buried in a necessary location such as between the pressing pin 33 and the pressing pin 34 to prevent oil from leaking to the outside.

In FIG. 6, reference numeral 51 indicates an emergency pressing pin, which is used to instantly press the friction plate 24, 26 to act when the brake stops working when an excessive weight is applied or when a failure occurs.
It is something that makes people feel pressured.

Therefore, the side portions of three of the suppressing pins 33 are shaped to protrude toward the center as shown in FIG. 6, and three emergency suppressing pins 51 are provided at intermediate positions between the suppressing pins 33. A seesaw type lever 52 is supported at an intermediate position between them, as shown in FIGS. 6 and 10. Reference numeral 53 indicates a fulcrum pin of the lever 52, and 54 indicates a support shaft. An emergency pressing pin 51 and a lever 52 are attached to one end of the lever 52.
A screw 55 is provided for adjusting the distance between the two.

9, the external small gear 41 is engaged with the internal gear 1 (() on the left side of the drum 11 in FIG.
The first shaft 42 is rotatably supported by a bearing 16. The tip of the shaft 42 is formed into an angular shape so as to protrude outward from the bearing 16 and into which the rope winding handle 6 is fitted. Therefore, by rotating the handle 6,
The a-pull 1, which is braked by the rope regulation guide 10, is regularly wound around the drum 11 under tension. After the winding of the rope 1 is completed, the handle 6 can be removed from the shaft 42.

Next, how to use the lifting device of the present invention will be explained.

First, when using it as an evacuation device, first keep the rope 1 wrapped around the anchor 1 at all times near the window of each hotel room, etc.
Fix and install a. When using, first each belt 5
I fixed it on my body and headed out of the building. At this time, drum 1
1 is in a pre-adjusted braking state, so the device will not drop suddenly due to the weight of the body. The user grips the cover 7 with his right hand to stabilize his body, and presses the brake lever 8 with his left hand in the direction of the arrow in FIG. 3B.
As shown in the figure, since the connecting wire 9 is pulled, the support shaft 2
The shift lever 30 is rotated counterclockwise about 9, and the suppression pin engagement disc 32 is biased to the right in the figure together with the shifter 31. Therefore, as shown in FIG.
The friction plate 24 is biased to the right in the figure against the pressure, and the pressure on the friction plate 24 is gradually released. Therefore, the frictional resistance between the friction plates 24, 26 is reduced, and the rotation of the drum 11 causes the rope 1 to be stretched in the direction of the center of gravity of the device, that is, in the downward direction.

At this point, the rope 1 is wound around the drum 11,
Since the rope is guided from a fixed position within the cover 7 by the rope regulating guide 10, the center of gravity does not move significantly each time the rope 1 comes to the left and right ends of the gadram 11, or the amount of movement of the center of gravity becomes extremely small.

In this case, if for some reason the predetermined braking state cannot be maintained and the vehicle falls rapidly, or if emergency braking is required, the driver should move the brake lever 8 to the arrow A in Figure 3B. Further pressure in the direction is sufficient. That is, by further pressing the brake lever 8 in the direction of arrow A in FIG. Together with 31, the suppression pin engagement disc 32 is biased to the right in the figure. Therefore, the pressing pin 33 engaged with the pressing pin engagement disc 32 is further biased to the right side in the figure against the compression spring 37, so that the pressure between the emergency pressing pin 51 and the lever 52 in the normal state is There is no gap, so ζ
As shown in FIG. 10B, the seesaw type lever 52 is attached to the support shaft 5.
4 further in the clockwise direction to press the emergency pressing pin 53 to the left in FIG. 10. therefore,
By pressing the emergency pressing pin 53, the forced frictional resistance of each of the friction plates 24, 26 is increased, and emergency braking of the drum 11 becomes possible.

After use, to return to the original state, engage the handle 6 with the pongee 42 and rotate it while pressing the brake lever 8. Therefore, the rope 1 is regularly wound around the drum 11 under tension because of the frictional resistance caused by the rope regulation guide 10.

Next, when using it as a climbing tool, fix the locking device 1a of the rope 1 to the bedrock using a bar lock, release the braking state by pressing the brake lever 8, and roll the handle 6. Rotate in the direction. If it becomes difficult to maintain the rotational operation, the brake lever 8 is immediately released from the pressure and the braked state is maintained, so that it can remain stationary for a long time.

In addition, when transferring a tongue force with a patient on it from above to below, the main body is fixed at an appropriate location, the tongue force is hooked to the end of the rope 1, and the operator adjusts the brake lever 8 at an appropriate descending speed. It can be used while

As described above, according to the present invention, in the lowering device in which the braking mechanism is provided on the drum wound around the V-pu, the braking mechanism is activated by operating the "lever" provided externally in one direction. , the braking state is gradually released, and emergency braking is activated by operating the lever in the same direction, so that when descending using the above-mentioned lowering device, it is possible to avoid sudden braking during use. If the predetermined braking state is no longer maintained, even if the user's psychological turmoil reaches a maximum and it becomes difficult to immediately move on to the next action, the user simply moves the lever in the normal direction of use. Since the emergency braking state can be easily put into the emergency braking state by simply operating the brake, this type of device can be provided with an extremely safe effect.

[Brief explanation of drawings]

FIG. 1 is a route diagram for explaining a conventional firesho, FIG. 2 is an external perspective view showing an example of the present invention, and FIG. 3A. B is a sectional view showing the internal structure and its operating state; FIG. 4 is a sectional view taken along the line VI-IV in FIG. 3A; FIG. Figure 6 is Vl-I in Figure 3A.
8A and 8B are cross-sectional views taken along lines ■--■ in FIG. 7 and diagrams showing their operating states;
The IX line sectional view and FIGS. 10A and 10B are sectional views for explaining the structure and function of the emergency suppression pin. DESCRIPTION OF SYMBOLS 1... Rope, 9... Connecting wire, 10... Rope regulation guide, 11... Drum, 12... Roller,
24.26...Friction plate, 33...Friction plate press pin, 37...Compression spring, 51...Emergency press pin, 5
2... Seesaw type lever, 54... Support shaft. Applicant's representative Patent attorney Takashi Akiyama Procedural amendment (method) % formula % 1 Case description 1982 Patent application No. 47883 ke 2,
Title of the invention Lifting device 3, relationship with the emigration of the person making the amendments Applicant's office: 66-12, Daimonzaki, Minato, Ishinomaki City, Miyagi Prefecture Name: Kazuo Kozutsumi 4, Agent 6, Number of inventions to be increased by amendment ( 1) Change “Cross-sectional view, Figure 8” to page 13, line 12 of the specification.
The cross-sectional view, Figure 7, is corrected as ``A cross-sectional view taken along the line ■-■ in Figure 3 A''.

Claims (1)

[Claims] In a lifting device in which a braking mechanism is provided on a drum wound around a rope, the braking mechanism is configured such that the braking state is gradually released by operating a lever provided externally in one direction. . An elevating device characterized in that emergency braking is activated by operating the lever in the same direction.