JPH10201865A - Life line device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a life line device for permitting a person to execute emergency lowering from a high building, especially a burning building. SOLUTION: The device includes a housing 13 and a line pulley means 16 is fitted inside so as to guide a life line 11. The housing includes a parallel plate pair which are joined by bolts 19, 22, 23 and 24. The line pulley means 16 is provided with a self control rotation stopper 24 between its side part plates. The line pulley means 16 is provided with a groove and a sidewall is engaged with the side part of the life line by friction force. A part of the life line which goes in and comes out of the line pulley means is limited between guides 22 and 27.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifeline (lifeline) device which can be safely dropped from a burning house or building through a window or from another high building. Related to providing.

[0002]

BACKGROUND OF THE INVENTION Swedish Patent 452,951 describes a lowering device that can be used from a building, but this device is not suitable for general use.

[0003] US Patent No. 659,093 describes a lowering device having a rope block in which a grooved brake lever acts as a braking device (unit). However, its braking effect is difficult to control,
Not very easy to use. Also, it is difficult to adjust the braking force to people of different weights. This indicates that a child will get off very late or a heavier adult will get off very early.

[0004] US Pat. No. 4,919,231 describes a prior art lifeline device that substantially fulfills most purposes. When people of different weights, for example small children and especially heavy people, descend, the function of the device is not sufficient. For children, the descent speed is slower, and for heavy people it may be faster.

[0005] None of the prior art lifeline devices have a satisfactory automatic control of the braking force that allows the descent of an unconscious or mentally confused person.

[0006]

SUMMARY OF THE INVENTION The main object of the present invention is to:
It is to provide a lifeline device that is more reliable and applicable to people of different weights. The device should be applicable to both children and heavy people and should be designed so that there is no need for control during descent. If necessary, the device should be equipped with an additional manual brake that can be used for a specific purpose.

[0007]

SUMMARY OF THE INVENTION The invention is described generally in claim 1. The dependent claims set forth particularly advantageous features.

[0008] The present invention according to claim 1 is a lifeline device for urgently dropping a person from a tall building, particularly a burning building, wherein the device guides the lifeline. A housing (13) having a line pulley means (16) mounted therein, a lifeline (11), said housing comprising bolts (19, 22,
23, 24), the parallel plate pairs (20, 2)
1), wherein the line pulley means (16) is provided with an automatic detent, and the line pulley means (16) is provided with a groove (17).
The side wall of which is frictionally engaged with the side of the lifeline (11), and the bottom (33) of the groove (17) and the groove (1).
7) There is a distance from the inner lifeline, the part of the lifeline entering and exiting the line pulley means (16) is restricted between the pair of guides (22, 27), and the lifeline is Characterized by covering and surrounding a substantial part of the periphery.

According to a second aspect of the present invention, there is provided the lifeline device according to the first aspect, wherein the groove (17) is provided.
Have side walls forming a mutual angle of 5 to 15 °, preferably less than 10 °.

According to a third aspect of the present invention, there is provided the lifeline device according to the first or second aspect, wherein the line pulley means (16) is rotatably supported by a shaft and is stopped at a side portion thereof (31). Abut.

According to a fourth aspect of the present invention, there is provided the lifeline device according to any one of the first to third aspects, wherein the line pulley means includes an opening (34) connected to the groove region in an annular manner. Promotes cooling.

According to a fifth aspect of the present invention, there is provided a lifeline device according to any one of the first to fourth aspects, wherein a pair of adjacent bolts (22, 23) is connected to one side of the lifeline pulley means (16). Extends between the side plates (20, 21) of the housing and acts as a guide or supports it to limit the lifeline (11).

According to a sixth aspect of the present invention, there is provided the lifeline device according to the fifth aspect, wherein the arm element (25) is pivotably disposed on one of the bolts (22, 23). With the inner end (27) facing the opening between the two bolts (22, 23), preferably forming a groove when the inner end engages the lifeline to serve as an additional brake, Arm element (25)
The opposite end of the work acts as a handle to guide a portion of the lifeline.

According to a seventh aspect of the present invention, there is provided the lifeline device according to the sixth aspect, wherein the lifeline (11) is connected to the arm element (2) through the opening (30).
Guided in 5).

The lifeline device according to claim 8 is the lifeline device according to one of claims 1 to 7, wherein the line pulley means (16) includes a support shaft (1).
9) has an oversized central opening (18).

In accordance with the teachings of the present invention, from a general purpose self-control device suitable for lowering unconscious persons of different weights,
It is possible to provide a lifeline device suitable for different purposes up to a manual brake device. The manual brake device can be used for basic braking force for safety and for controlled descent with the possibility of further manual braking.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a lifeline 11, which connects the end of the line to a fixed location at a high position where a person with a lifeline device should descend. End hooks 12 for mounting. The lifeline 11 is guided through a lifeline device housing 13. The lifeline device housing 13 is hereinafter referred to as "lifeline device" and is described in further detail below.

The lifeline device 13 is attached to a person by a cloth strap or belt 14 connected to the lifeline device 13 by a link 15 attached to a bolt 35.

The lifeline device 13 has a V-shaped groove 17
And a pulley 16 having a central opening 18 through which a shaft 19 extends, with the bolt and pulley disposed between a pair of rectangular side plates 20 and 21. In the embodiment, the central opening 18 of the pulley 16 is oversized relative to the shaft 19. Also, the central opening 18
May contact the shaft 19. In the embodiment shown, the pulley 16 is designed so that the bolt 24 abuts the side of the pulley. The bolt 24 works as a stop. In an embodiment not shown, the pulley 16 may be locked with bolts 19 to prevent rotation.

The V-shaped groove 17 has an angle with its side wall in the range of 5 to 15 °, preferably less than 10 °, and engages the lifeline 11 with the side of the side wall by frictional force. A free space is left between the V-shaped groove 17 and the bottom 33 of the V-shaped groove 17.

The side plates 20 and 21 are joined by a further pair of bolts 22 and 23 located on one edge of the side plates 20 and 21. Bolts 22 and 2
Numeral 3 limits the opening in between for the two parts of the lifeline 11, namely the part entering the pulley 16 and the part exiting it. Thus, the lifeline surrounds the main portion of the pulley at its periphery.

The bolt 23 extends laterally from the lifeline device 13 and is configured to pivot a brake lever or arm element 25 which is a part thereof. The pivot of the arm element 25 is limited by a bolt 28 extending between the side plates 20 and 21 through a slot 29 in the arm element 25. The arm element 25 has an opening 30 for the lifeline 11. This opening is at right angles to the pivot bolt 23 and the arm element 2
5 extend through the exposed portion. Opening 30
The purpose of this is to expose the lifeline inside the lever to a further bolt 31 on the side of the pulley 16.

One end of the lifeline 11 from the brake arm element 25 is guided through the opening 32 to the free end of the arm element.

In contrast to the lifeline device shown in US Pat. No. 4,919,231, the device of the present invention does not require toothed pulleys and brake elements. The arm element and its associated components may be used as needed to increase the braking force in addition to the self-induced braking force of the basic mechanism.

The lifeline 11 is guided through a lug 32 having an opening inside the arm element 25.

The pulley 16 has eight axial openings 34 connected in an annular shape, and when heated during descent, promotes cooling of the pulley. This opening is advantageous for safety, as the pulley frictional force can create excess heat that can reduce the frictional effect when using a thermal lifeline material.

[0027]

The lifeline device described has several advantages over prior art devices. Automatically controlled descent speed can be used for people with different weights. Thus, the device of the present invention can be used without manipulating the arm element 25 to drop an unconscious person. Furthermore, the device according to the invention can be provided with an additional manual brake to add to the self-braking force.

[Brief description of the drawings]

1 is a partial front sectional view of the device according to the invention, with the front plate removed, thus showing a lifeline moving around a friction pulley and guided by a brake lever; FIG.

FIG. 2 is a side view of the device of FIG. 1, with a portion of the brake lever removed;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Lifeline 13 Housing 16 Line pulley means 17 Groove 18 Center opening 19 Shaft (bolt) 20 Side plate 21 Side plate 22 Bolt 23 Bolt 24 Bolt 25 Arm element 27 Inner end 30 Opening 31 Stop 33 Bottom of groove 34 opening

 ──────────────────────────────────────────────────続 き Continued on the front page (71) Applicant 597005613 N-6456 Skaala Norway

Claims (8)

[Claims] A lifeline device for urgently dropping a person from a tall building, especially a burning building, comprising a line pulley mounted therein to guide the lifeline. A housing having a means, including a lifeline, the housing including a pair of parallel plates bolted together, wherein the line pulley means includes an automatic detent, the line pulley means has a groove, and a side wall thereof. It engages with the side of the lifeline by frictional force, there is a distance between the bottom of the groove and the lifeline in the groove, and the part of the lifeline that enters and exits the line pulley means is restricted between a pair of guides A lifeline covering a substantial part of the periphery of the line pulley means. 2. The lifeline device according to claim 1, wherein the grooves have side walls forming a mutual angle of 5 to 15 °, preferably less than 10 °. 3. A lifeline device according to claim 1, wherein the line pulley means is rotatably supported by a shaft and abuts against a stop at a side portion thereof. 4. The cooling system according to claim 1, wherein the line pulley means has an opening in the groove area which is annularly connected to facilitate cooling.
One lifeline device. 5. The invention of claim 1 wherein adjacent pairs of bolts extend between the side plates of the housing on one side of the lifeline pulley means and serve as or support a guide to limit the lifeline. One lifeline device. 6. An arm element pivotally disposed on one of the bolts of the bolt pair, with an inner end facing the opening between the two bolts, preferably with the inner end facing the lifeline. 6. The lifeline device of claim 5, wherein the engagement with the groove creates a groove to act as an additional brake, and the opposite end of the arm element acts as a handle to guide a portion of the lifeline. 7. The lifeline device according to claim 6, wherein the lifeline is guided by the arm element through the opening. 8. The method according to claim 1, wherein the line pulley has an oversized central opening with respect to the support shaft.
Lifeline equipment.