JP2023043217A - Portable article fall prevention tool - Google Patents

Abstract

To provide a portable article fall prevention tool capable of preventing more portable articles from falling without spoiling workability.SOLUTION: A cushioning part 21 is mounted on a belt 101 that a worker H wears around his or her waist. The cushioning part 21 internally has a reel wound with a first cord body 11 in a drawable state, and the force of a spiral spring accumulating the force as the first cord body 11 is unwound is used to wind the first cord body 11 back around the reel. One or more tools 111 (portable article) are fitted with a second cord body 51. A portable article fall prevention tool 1 is characterized in that, for example, a tip part of the first cord body 11 is fixed to a housing 22 of the cushioning part 21, and looped, and second cord bodies 51 are connected to the looped first cord body 11 with utility dips 52 etc. Various tools 111 are connected to the body of the worker H with the first cord body 11 and second cord bodies 51.SELECTED DRAWING: Figure 1

Description

The present disclosure relates to a portable object fall prevention tool.

When working at heights such as construction sites, safety measures are taken to prevent the fall of various tools. For that reason, a portable object fall prevention tool is used. The basic form of portable object fall protection equipment is to fix a string-like body to a portable object such as tools, and then fix the opposite end of the string-like body to a belt worn around the waist of the worker. there is

Wire ropes made of metal, fiber ropes made of fibers, and the like are widely used as the string-like body. Various forms such as linear and belt-like appearances are in widespread use.

In Patent Documents 1 and 2, a reel on which a string-like body is wound is rotatably housed in a housing (case) so that the string-like body can be drawn out from the housing and rewound onto the reel. A device for preventing a fall of a portable object is disclosed. This kind of device for preventing the fall of a portable object incorporates a spiral spring in a housing that accumulates force by rotation of a reel (a drum in Patent Document 1) in a direction in which a string-like body is pulled out, and the pulled-out string-like body restores the spiral spring. It is rewound on the reel by force. The spiral spring provides resistance to the pulling action of the string-like body from the housing, and also serves to absorb the impact when the portable object is dropped.

Japanese Patent Application Laid-Open No. 2002-180673 JP 2017-001811 A

A portable object fall prevention device is associated with a portable object to be prevented from falling in a one-to-one relationship. For this reason, when carrying out a high-place work with a plurality of tools, it is necessary to equip work belts or the like with as many portable object fall prevention tools as there are tools. As a result, the waist becomes cluttered, and the string-like bodies become entangled, thereby impairing workability. In addition, wearing a tool for preventing the fall of a portable object inevitably reduces the number of tools that can be carried, and there may arise a situation in which a construction that should normally be completed once must be performed twice or more.

It is desired to provide a portable object fall prevention device capable of preventing more portable objects from falling without impairing workability.

In the portable object fall prevention device of the present disclosure, a reel around which a first string-like body is wound is rotatably stored in a housing that can be worn on the human body, and a spring is stored as the first string-like body is pulled out. a buffering part that applies the force to the reel as a force to unwind the first string-like body; a fixing part that fixes the first string-like body to the human body; and a connecting portion attached to the first string-like body fixed to the human body side and surrounding the entire circumference of the first string-like body.

It is possible to prevent more portable items from falling without impairing workability.

1 is a front view showing a portable object fall prevention device worn by a worker as a first embodiment; FIG. The perspective view which shows a buffer part from a front side. The perspective view which shows a buffer part from a back side. (A) is a state in which the first string-like body is unwound, and (B) is a longitudinal front view of the cushioning portion showing a state in which the first string-like body is pulled out. The longitudinal side view which expands and shows a buffer part. The schematic diagram which shows an example of a use condition. The schematic diagram which illustrates a mode when the portable item (monkey wrench) falls. The front view which shows the portable-object fall prevention tool in the state with which the worker was mounted|worn as 2nd Embodiment. The perspective view which shows a buffer part from a front side. The perspective view which shows a buffer part from a back side. (A) is a state in which the first string-like body is unwound, and (B) is a longitudinal front view of the cushioning portion showing a state in which the first string-like body is pulled out. FIG. 4 is a cross-sectional plan view showing an enlarged buffer portion; The schematic diagram which shows an example of a use condition. The schematic diagram which illustrates a mode when the portable item (monkey wrench) falls. The front view which shows the portable-object fall prevention tool in the state with which the worker was mounted|worn as 3rd Embodiment. (A) is a state in which the second string-like body is unwound, and (B) is a longitudinal front view of the sub-buffer portion showing a state in which the second string-like body is pulled out. The longitudinal side view which expands and shows a sub buffer part. The schematic diagram which shows an example of a use condition. The schematic diagram which illustrates a mode when the portable item (monkey wrench) falls.

Embodiments will be described with reference to the drawings. The following items will be explained.
1. First Embodiment (1) Structural Description (2) Action (3) Effect (4) Another Embodiment 2. Second Embodiment (1) Structural Description (2) Action (3) Effect 3. Third Embodiment (1) Structural Description (2) Action (3) Effect 4. Summary (1) First embodiment (2) Second embodiment (3) Third embodiment (4) First to third embodiments 5. Modification

1. First Embodiment A first embodiment will be described with reference to FIGS. 1 to 7. FIG.

(1) Structural Description As shown in FIG. 1, a portable object fall prevention device 1 (hereinafter also abbreviated as a “fall prevention device”) of the present embodiment is an auxiliary device worn by a worker H and attachable to the human body. It is used by being attached to the Auxiliary tools are, for example, work belts and harness-type safety belts. In this embodiment, an example is shown in which a work belt 101 worn around the waist of the worker H is used as an auxiliary tool. This belt 101 has a storage bag 131 capable of storing various tools 111 used, for example, at a construction site as portable items. In the example shown in FIG. 1, a monkey wrench 111a, a wrench 111b, and pliers 111c are stored in the storage bag 131. As shown in FIG.

The fall prevention tool 1 of the present embodiment is provided with a cushioning portion 21 for storing the first string-like body 11 so that it can be drawn out freely so that it can be attached to the belt 101, and individual tools 111 (monkey wrench 111a, wrench 111b, The second string-like body 51 fixed to each of the pliers 111 c) is connected to the first string-like body 11 .

The first string-like body 11 and the second string-like body 51 are wire ropes, for example. As another example, a fiber rope or a structure in which a core material is coated with a resin such as urethane may be used. Alternatively, it is not limited to a linear material, and may be belt-like or chain-like. The first string-like body 11 and the second string-like body 51 do not necessarily have to be of the same material and shape. A fiber rope may be used for the body 51 .

As shown in FIGS. 2 and 3, the buffer section 21 has a belt clip 23 as an attachment in its housing 22, and can be attached to the human body of the worker H by inserting the belt clip 23 into the belt 101. As shown in FIGS. there is The first string-like body 11 pulled out from such a buffer portion 21 is fixed to a housing 22 of the buffer portion 21 by a fixing portion 12, which will be described later, at its distal end, forming a loop shape. Since the cushioning portion 21 is fixed to the belt 101, the fixing portion 12 serves to fix the first cord-like body 11 to the human body.

The second string-like body 51 has a hook 52 (connecting hook) as a connecting portion on one end side, and another hook hook 53 (a hook for fixing a portable object) on the opposite end. there is

The hook 52 provided at one end is detachably attached to the loop-shaped first string-like body 11 and surrounds the entire circumference of the first string-like body 11 to prevent it from coming off.

The hook 53 provided at the opposite end is detachably attached to a tool catcher 112 (portable object catcher) fixed to each of the tools 111 stored in the storage bag 131 . The tool catcher 112 is a ring-shaped member provided so that a fixed string 113 fixed to each tool 111 is passed therethrough. The fixed string 113 is, for example, a rubber string attached to and fixed to a part of the tool 111 , or a linear member made of fiber or metal tied to the tool 111 as another example. In any case, the fixing string 113 is fixed to the tool 111, and the hook 53 is attached to the tool catcher 112 provided to pass the fixing string 113, so that the second string-like body 51 is connected to the tool 111. .

In terms of the structure of the second string-like body 51, the hook 52 provided at one end functions as a connecting portion provided in the second string-like body 51 extending from each of the one or more tools 111. do.

As shown in FIGS. 4A, 4B and 5, the cushioning section 21 includes a reel 24 and a spiral spring 25 inside a rectangular housing 22 .

The reel 24 is rotatably provided between the pedestal 26 and the spiral spring 25 , more precisely, the spring housing 27 that houses the spiral spring 25 , and winds the first string-like body 11 . The first string-like body 11 wound around the reel 24 is pulled out from a through hole 28 provided on the bottom surface of the housing 22 .

The above-described fixing portion 12 for fixing the first string-like body 11 to the human body is fixed to the string holding portion 29 positioned on the lower left side of the housing 22 when viewed from the front, and to the distal end portion of the first string-like body 11. It is composed of a retaining body 30 that is attached. The retaining body 30 is a cylindrical member having a diameter larger than the wire diameter of the first string-like body 11, and the string holding part 29 stores and holds the retaining body 30 in a retained state.

A stopper 31 is fixed to the first string-like body 11 . As shown in FIG. 4(A), the fixed position of the stopper 31 is a position that prevents the retraction of the first string-like body 11 when the U-shaped loop is formed.

The spiral spring 25 is housed in a cylindrical spring housing 27 provided inside the housing 22 . The outer end EO of the spiral spring 25 is fixed to the spring housing 27 , and the inner end EI is fixed to the reel shaft 32 . The reel shaft 32 is a central shaft of the reel 24 that rotates together with the reel 24 .

FIG. 4A shows the spiral spring 25 in the unwound state. At this time, the first string-like body 11 is rewound on the reel 24 and the stopper 31 abuts against the outer surface of the housing 22 to form a loop.

FIG. 4B shows the spiral spring 25 in a tightened state. This is the state when the first string-like body 11 is pulled out. At this time, the spiral spring 25 stores the force to unwind the first string-like body 11 . When the force holding the first string-like body 11 is released, the spiral spring 25 also releases the stored force and rotates the reel 24 in the rewinding direction (counterclockwise in FIG. 4B). As a result, the first string-like body 11 is rewound onto the reel 24 and returns to the state shown in FIG. 4(A).

As described above, the spiral spring 25 applies force to the reel 24 to unwind the first string-like body 11 . In addition, the spiral spring 25 also has the function of giving resistance to the pull-out operation of the first string-like body 11 from the housing 22 .

(2) Operation In such a configuration, the worker H wears the belt 101 around his/her waist. At this time, the storage bag 131 is set so as to be positioned on the side of the body (just beside the waist), and the buffer portion 21 is attached to the region R (see FIG. 1) adjacent to the storage bag 131 . A region R is a region in the belt 101 secured on the front side of the body from the storage bag 131 as a region where the buffer portion 21 can be attached. The cushioning portion 21 can be easily attached by clipping the belt clip 23 to the belt 101 .

Before and after, the worker H attaches the second string-like body 51 to the tool 111 that he wants to store in the storage bag 131 and carry, and connects the second string-like body 51 to the first string-like body 11 . Attachment of the second string-like body 51 to the tool 111 is performed by a hook 53 . The connection of the second string-like body 51 to the first string-like body 11 is performed by a hook 52 .

The preparatory work is completed as described above, and the user can go to high place work at a construction site, for example.

As shown in FIG. 6, when the worker H takes out a desired tool 111 from the storage bag 131 and uses it, the tool 111 is moved beyond the movable range determined by the length of the second string-like body 51. Then, the first string-like body 11 connected to the second string-like body 51 is pulled out from the buffer portion 21 . This allows the tool 111 to move freely.

After that, when the use of the tool 111 is completed and it is returned to the storage bag 131, the pulled-out first string-like body 11 is rewound on the reel 24 to the position where it forms a loop as shown in FIG. 4(A). return.

When using such a specific tool 111 (for example, monkey wrench 111a), the second string-like body 51 connected to all the tools 111 has an annular shape surrounding the entire circumference of the first string-like body 11. It is connected to the first string-like body 11 via a hook 52 having a hook. Due to this structure, the second string-like body 51 connected to the other tools 111 (for example, the wrench 111b and the pliers 111c) while being stored in the storage bag 131 is used to draw out and wind the first string-like body 11. Not constrained by return action. This is because the first string-like body 11 can freely move inside the hook 52 provided on the second string-like body 51 .

As shown in FIG. 7, when the worker H drops the tool 111 in use, the energy of the drop of the tool 111 applies force to the first string-like body 11 in the pull-out direction. At this time, the spiral spring 25 exerts a resistance to the pull-out operation of the first string-like body 11, and exerts a cushioning action to reduce the impact when the tool 111 falls.

(3) Effect The fall prevention tool 1 of the present embodiment is associated with the tool 111 for fall prevention in a one-to-many relationship. That is, only one cushioning portion 21 forming the core of the fall prevention device 1 is provided, and a plurality of tools 111 are connected to this one cushioning portion 21 for use. At this time, although the second string-like bodies 51 extending from the individual tools 111 are required for the number of the tools 111, the second string-like bodies 51 are not bulky, and the hooks 52 are used to connect the first string-like bodies 11 to each other. It is also not entangled structurally that it is connected to. Therefore, good workability can be maintained.

In addition, since it is sufficient to wear only one cushioning part 21, it is possible to carry more tools 111 at once, and it is unreasonable that the work that should be completed once must be performed twice or more. contribute to resolving the situation.

Therefore, according to the present embodiment, it is possible to prevent a greater number of portable objects (for example, tools 111) from falling without impairing workability.

According to this embodiment, the stopper 31 prevents the first string-like body 11 from being completely pulled into the housing 22 . For this reason, as shown in FIG. 4A, the first string-like body 11 can be formed in a loop shape, and the first hook 52 of the eggplant hook 52 provided on the second string-like body 51 extending from each tool 111 can be formed. Attachment/detachment work to/from the string-like body 11 can be facilitated.

(4) Another embodiment The fixing part 12 of the present embodiment is provided integrally with the housing 22 and fixes the end of the first string-like body 11, thereby securing the first string-like body 11 to the housing. It is fixed at 22. The aspect of the fixed part 12 is not limited to such an aspect. For example, the shock absorber is provided with a pair of mechanisms for applying the force accumulated by the spiral spring 25 along with the pullout operation of the first string-like body 11 to the reel 24 as a force for rewinding the first string-like body 11, that is, a pair of rewinding mechanisms. 21 is structurally changed, and the fixing part 12 fixes one end of the first string-like body 11 to one reel 24 and fixes the opposite end of the first string-like body 11 to the other reel 24 . You may make it

An embodiment having a pair of such rewinding mechanisms can be realized by providing a pair of rewinding mechanisms in a single housing 22 or by connecting two separate and independent cushioning sections 21 .

As the latter structure, for example, two buffer portions 21 are prepared and the housings 22 are connected to each other. At this time, the two cushioning portions 21 are fixed such that the respective reel shafts 32 are positioned coaxially and the respective through holes 28 are positioned adjacent to each other. The single first string-like body 11 shared by the two buffering portions 21 may be formed by connecting separate first string-like bodies 11 provided to the pair of buffering portions 21 respectively. Alternatively, a single first string-like body 11 may be originally wound around the reel 24 .

In such a structure, when viewed from one buffering portion 21, the other buffering portion 21 functions as a fixing portion 12 for fixing the first cord-like body 11 to the human body side, and the other buffering portion 21 When viewed from the portion 21, one buffer portion 21 functions as a fixing portion 12 that fixes the first cord-like body 11 to the human body.

In such a configuration, the first string-like body 11 is pulled out from the reel shafts 32 contained in the two cushioning portions 21 and rewound onto the respective reels 24 . At this time, since two rewinding mechanisms mainly composed of the reel 24 and the spiral spring 25 are provided, the pullout operation of the first string-like body 11 is smoothed, and the individual tools 111 can be handled more easily. can be done.

2. Second Embodiment A second embodiment will be described with reference to FIGS. 8 to 14. FIG. The same parts as in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

(1) Structural Description This embodiment differs from the first embodiment mainly in the structure and position of the fixing portion 12 that fixes the first cord-like body 11 to the human body. Along with this, the form of the buffer portion 21 also differs.

As shown in FIG. 8, a belt 101 that the worker H wears around his/her waist is provided with a catcher 13 made of a D-shaped metal fitting. The fixing part 12 for fixing the first string-like body 11 to the human body side connects the first string-like body 11 to the catcher 13 instead of the housing 22 of the buffer part 21 as in the first embodiment. . As such means, the fixing part 12 is provided with a hook 14 (a hook for fixing to the human body). The hook 14 is fixed to the tip of the first string-like body 11 and functions as a fixture that detachably fixes the first string-like body 11 to the catcher 13 .

The position where the catcher 13 is provided in the belt 101 is the position on the opposite side of the storage bag 131 to the region R where the buffer portion 21 can be attached. When the worker H wraps the belt 101 around his/her waist, the storage bag 131 is right next to the waist, the region R where the buffer part 21 can be worn is on the front side (abdominal side) of the body from the storage bag 131, and the catcher 13 is the storage bag. It is positioned on the dorsal side (dorsal side) of the body from 131 (see also FIG. 13).

As also shown in FIGS. 9 to 12, the buffer portion 21 differs from the first embodiment in the following three points.
(a) It does not have the fixing part 12 composed of the string holding part 29 and the retainer 30. ) The first string-like body 11 having no stopper 31 has the hook hook 14 fixed to its tip, so that it will not be pulled into the housing 22 through the through hole 28 . The maximum unwound position is the position where the eggplant hook 14 hits the housing 22 .

As a result, the first string-like body 11 pulled out from the through-hole 28 of the housing 22 reaches the catcher 13 through the upper position of the storage bag 131 and is detachably attached to the catcher 13 by the hook 14 .

(2) Operation In such a configuration, the worker H wears the belt 101 around his/her waist. At this time, the storage bag 131 is set so as to be positioned on the side of the body (just beside the waist), and the buffer section 21 is attached to the region R (see FIG. 8) where the buffer section 21 can be attached. Then, the first string-like body 11 is pulled out from the buffer portion 21 and the hook 14 provided at the tip thereof is fixed to the catcher 13 of the belt 101 .

The worker H attaches the second string-like body 51 to the tool 111 that he wants to store in the storage bag 131 and carry, and connects the second string-like body 51 to the first string-like body 11 . Attachment of the second string-like body 51 to the tool 111 is performed by a hook 53 . The connection of the second string-like body 51 to the first string-like body 11 is performed by a hook 52 .

The preparatory work is completed as described above, and the user can go to high place work at a construction site, for example.

As shown in FIG. 13, when the worker H takes out a desired tool 111 from the storage bag 131 and uses it, the tool 111 is moved beyond the movable range determined by the length of the second string-like body 51. Then, the first string-like body 11 connected to the second string-like body 51 is pulled out from the buffer portion 21 . This allows the tool 111 to move freely.

After that, when the use of the tool 111 is completed and it is returned to the storage bag 131, the first string-like body 11 that has been pulled out is rewound on the reel 24 and returns to the initial state shown in FIG.

As shown in FIG. 14, when the worker H drops the tool 111 in use, the energy of the drop of the tool 111 applies force to the first string-like body 11 in the pull-out direction. At this time, the spiral spring 25 exerts a resistance to the pull-out operation of the first string-like body 11, and exerts a cushioning action to reduce the impact when the tool 111 falls.
(3) Effect

According to this embodiment, since the first string-like body 11 is arranged directly above the tools 111 stored in the storage bag 131, each tool 111 and the first string-like body 11 are connected to each other. 2, the length of the string-like body 51 can be shortened. Accordingly, interference of the second string-like body 51 with the tool 111 is less likely to occur, and workability can be further improved.

In addition, since the entire side region of the body from the buffer portion 21 to the catcher 13 can be used as a connection region for the tools 111, it is possible to secure a wide connection region for the tools 111, and more tools 111 can be used. can be connected to the fall prevention device 1.

3. Third Embodiment A third embodiment will be described with reference to FIGS. 15 to 19. FIG. The same parts as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

(1) Structural Description As shown in FIG. 15, this embodiment differs from the second embodiment in that a sub-buffer portion 61 is interposed between the second string-like body 51 and the hook 52. structure.

As shown in FIGS. 16A, 16B and 17, the sub-buffer portion 61 is provided inside a cylindrical sub-housing 62 that fixes the eggplant hook 52 for connecting to the first string-like body 11. A sub-reel 63 on which two string-like bodies 51 are freely pulled out is rotatably accommodated, and a spiral spring 64 is provided to apply a rewinding force to the sub-reel 63. - 特許庁

The sub-reel 63 is rotatably provided between the pedestal 65 and the spiral spring 64 , more precisely, a spring housing 66 that houses the spiral spring 64 , and winds the second string-like body 51 . The second string-like body 51 wound around the sub-reel 63 is drawn out from a through-hole 67 provided on the bottom surface of the sub-housing 62 .

The spiral spring 64 is housed in a cylindrical spring housing 66 provided inside the sub-housing 62 . The outer end EO of the spiral spring 64 is fixed to the spring housing 66 , and the inner end EI is fixed to the reel shaft 68 . The reel shaft 68 is the central shaft of the sub-reel 63 that rotates together with the sub-reel 63 .

FIG. 16A shows the spiral spring 64 in the unwound state. At this time, the second string-like body 51 is rewound on the sub-reel 63 .

FIG. 16B shows the spiral spring 64 in a tightened state. This is the state when the second string-like body 51 is pulled out. At this time, the spiral spring 64 stores the force to unwind the second string-like body 51 . Then, when the force holding the second string-like body 51 is released, the spiral spring 64 also releases the stored force and rotates the sub-reel 63 in the unwinding direction (counterclockwise in FIG. 16(B)). As a result, the second string-like body 51 is rewound onto the sub-reel 63 and returns to the state shown in FIG. 16(A).

As described above, the spiral spring 64 applies force to the sub-reel 63 to unwind the second string-like body 51 . In addition, the spiral spring 64 also has the function of giving resistance to the pull-out operation of the second string-like body 51 from the sub-housing 62 .

The buffer section 21 and the sub-buffer section 61 are compared. The major difference between these two instruments is the difference in stiffness of the spiral springs 25, 64 from each other. The spiral spring 64 incorporated in the sub-buffer portion 61 has a lower rigidity than the spiral spring 25 incorporated in the buffer portion 21 . As a result, the force by which the sub-buffer portion 61 unwinds the second string-like body 51 is set weaker than the force by which the buffer portion 21 unwinds the first string-like body 11 .

(2) Action As shown in FIG. 18 , when the operator H takes out the desired tool 111 from the storage bag 131 , the second string-like body 51 is pulled out from the sub buffer portion 61 . This allows the tool 111 to move freely.

At this time, tension is also applied to the first string-like body 11 to which the second string-like body 51 is connected, but the first string-like body 11 is not pulled out. Since the spiral spring 25 built in the buffering portion 21 has higher rigidity than the spiral spring 64 built in the sub buffering portion 61, the force of the buffering portion 21 unwinding the first cord-like body 11 is This is because the force is stronger than the force for unwinding the second string-like body 51 .

After that, when the use of the tool 111 is completed and it is returned to the storage bag 131, the pulled-out second string-like body 51 is rewound onto the sub-reel 63 and returns to the initial state shown in FIG.

(3) Effect As shown in FIG. 19, when the worker H drops the tool 111 in use, depending on the degree of energy when the tool 111 is dropped, not only the second string-like body 51 but also , a force in the pull-out direction is applied to the first string-like body 11 as well. At this time, the spiral spring 64 built in the sub-buffer portion 61 gives resistance to the pull-out motion of the second string-like body 51, and the spiral spring 25 built in the buffer portion 21 pulls out the first string-shaped body 11. give resistance to As a result, a cushioning effect is exerted to alleviate the impact when the tool 111 is dropped. In particular, since the shock absorbing action of the spiral spring 25 occurs after the second string-like body 51 is completely pulled out, it is possible to prevent the dropped tool 111 from being flipped up.

4. Conclusion In the portable object fall prevention device 1 of the first to third embodiments, the reel 24 around which the first string-like body 11 is wound is rotatably accommodated in the housing 22 that can be worn on the human body. A buffer portion 21 is provided for applying force accumulated by a spiral spring 25 (spring) as the string-like body 11 is pulled out to the reel 24 as a force for rewinding the first string-like body 11 . The portable object fall prevention device 1 is connected to a fixing portion 12 for fixing a first string-like body 11 to the human body side, and one or more tools 111 (portable objects), respectively, and is fixed to the human body side. and an eggplant hook 52 (connecting portion) that is attached to the first string-like body 11 and surrounds the entire circumference of the first string-like body 11 . The portable object fall prevention device 1 includes a second string-like body 51 fixed to one or more tools 111 (carried objects), respectively, and the hook 52 (connecting portion) is connected to the second string-shaped body 51. are connected to one or more tools 111 (portables) via . The hook 52 (connecting portion) is detachable from the first string-like body 11 fixed to the human body.

(1) First Embodiment The fixing portion 12 fixes the first string-like body 11 to the housing 22 .

As one embodiment, the buffer section 21 applies the force accumulated by the spiral spring 25 (spring) as the first string-like body 11 is pulled out to the reel 24 as a force for rewinding the first string-like body 11 . Having a pair of mechanisms, the fixing part 12 fixes one end of the first string-like body 11 to one reel 24 and fixes the opposite end of the first string-like body 11 to the other reel 24 . are doing.

The fall prevention tool 1 of this embodiment includes a stopper 31 (stopper mechanism) that prevents the first string-like body 11 from being completely pulled into the housing 22 . Further, the housing 22 of the cushioning portion 21 has a belt clip 23 (wearing device) for detachably attaching to the belt 101 (auxiliary device) wrapped around the waist.

(2) Second Embodiment In one aspect of the second embodiment, the housing 22 of the buffer portion 21 includes a belt clip 23 (wearing tool) for detachably attaching to the belt 101 (auxiliary tool) wrapped around the waist. ), and the fixing portion 12 has an eggplant hook 14 (fixing tool) for detachably fixing the first string-like body 11 to a catcher 13 provided on the belt 101 .

Another aspect of the second embodiment is provided with a belt 101 wrapped around the waist with a catcher 13 provided in a part of the length direction, and the housing 22 of the cushioning part 21 is detachably attached to the belt 101. It has a belt clip 23 (wearing tool), and the fixing part 12 has an eggplant hook 14 (fixing tool) for detachably fixing the first string-like body 11 to the catcher 13 .

The belt 101 has a storage bag 131 adjacent to the catcher 13 for storing the tool 111 (portable item), and a region R in which the buffer portion 21 can be attached at a position on the opposite side of the catcher 13 with the storage bag 131 interposed therebetween. have.

(3) Third Embodiment In the third embodiment, on the premise of the second embodiment, the second string-like body 51 is pulled out into the sub-housing 62 to which the hook 52 (connecting portion) is fixed. A freely wound sub-reel 63 is rotatably stored, and the force accumulated by a spiral spring 64 (spring) as the second string-like body 51 is pulled out is used as a force for rewinding the second string-like body 51 to the sub-reel 63. It has a sub-buffer 61 that gives to. The force by which the sub-buffer portion 61 unwinds the second string-like body 51 is set weaker than the force by which the buffer portion 21 unwinds the first string-like body 11 .

(4) First to Third Embodiments As one aspect, a tool fixed to a tool 111 (portable object) is attached to the end of the second string-like body 51 opposite to the hook 52 (connecting portion). A detachable hook 53 for fixing a portable object is fixed to the catcher 112 (carried object catcher). At least one of the first string-like body 11 and the second string-like body 51 is, for example, a wire rope. At least one of the first string-like body 11 and the second string-like body 51 has, for example, a linear shape, another example of a strip shape, and another example of a chain shape.

5. Modifications Various modifications and changes are possible in practice.

For example, the second string-like body 51 may be omitted, and the hook 52 as the connecting portion may be directly attached to each tool 111 . As an example, the hook 52 is fixed to a tool catcher 112 provided so as to let a fixing string 113 fixed to each tool 111 pass therethrough.

In each of the above-described embodiments, the form using the eggplant hook 52 as the connecting portion that is attached to the first string-like body 11 fixed to the human body side and surrounds the entire circumference of the first string-like body 11 is mentioned. The connecting part does not necessarily have to be the hook 52, and may be a member that is not detachable from the first string-like body 11, for example, an endless member such as a ring.

In the above-described embodiment, an example in which the single-rigidity spiral spring 25 is used in the buffer portion 21 is shown, but two types of spiral springs with different rigidity may be connected and used. As a result, when the first string-like body 11 is pulled out, a low-rigidity spiral spring acts, and when the tool 111 falls, a high-rigidity spiral spring acts, suppressing rebound of the dropped tool 111. be able to. Such a so-called double action operation of the spiral spring is particularly effective for the fall prevention device 1 of the first and second embodiments.

In the first embodiment, as the structure of the fixing portion 12, the retainer 30 provided on the side of the first string-like body 11 is fixed to the string holding portion 29 provided on the side of the housing 22. Examples of connecting structures are shown. In practice, a structure for detachably fixing the first string-like body 11 to the housing 22, for example, a structure using a plug and a catcher may be employed. This structure is such that when the plug is inserted into the catcher, the two are connected and fixed, and when the plug is pushed in, the fixation between the two is released.

In the second embodiment, as the structure of the fixing portion 12, the hook 14 that can be attached to and detached from the catcher 13 provided on the belt 101 is exemplified. In practice, not only the eggplant hook 14, but also a connecting portion having another structure may be used.

All other variations and modifications are possible.

1 portable object fall prevention device 11 first string-like body 12 fixing part 13 catcher 14 hook (fixing tool, hook for fixing human body)
21 buffer part 22 housing 23 belt clip (equipment)
24 reel 25 spiral spring (spring)
26 pedestal 27 spring housing 28 through hole 29 string holding part 30 retainer 31 stopper 32 reel shaft 51 second string-like body 52 hook (connecting hook)
53 Eggplant hook (Eggplant hook for securing portable items)
61 sub-buffer portion 62 sub-housing 63 sub-reel 64 spiral spring (spring)
65 pedestal 66 spring housing 67 through hole 68 reel shaft 101 belt (auxiliary tool)
111 tools (portables)
111a monkey wrench 111b wrench 111c pliers 112 tool catcher (portable item catcher)
113 Fixing string 131 Storage bag EI Inner end EO Outer end H Worker R Area where buffer can be attached

Claims (6)

A reel around which the first string-like body is wound is rotatably housed in a housing that can be worn on the human body, and the force accumulated by the spring accompanying the pull-out operation of the first string-like body is applied to the first string-like body. A buffer section that applies to the reel as a force to unwind the
a fixing part that fixes the first string-like body to the human body;
a connecting portion connected to one or more portable objects, respectively, attached to the first string-like body fixed to the human body side, and surrounding the entire circumference of the first string-like body;
A portable object fall prevention tool. A second string-like body fixed to one or more of the portable objects,
The connecting part is connected to one or more of the portable objects via the second string-like body,
The device for preventing a portable object from falling according to claim 1. The fixing part fixes the first string-like body to the housing,
3. The device for preventing a portable object from falling according to claim 1 or 2. The cushioning section has a pair of mechanisms for applying to the reel a force accumulated by a spring as the first string-like body is pulled out, as a force for rewinding the first string-like body,
The fixing part fixes one end of the first string-like body to one of the reels, and fixes the opposite end of the first string-like body to the other reel.
The device for preventing a portable object from falling according to claim 3. The housing of the cushioning part has an attachment tool for detachably attaching to an auxiliary tool attached to the human body,
The fixing part has a fixing tool for detachably fixing the first string-like body to a catcher provided on the auxiliary tool,
3. The device for preventing a portable object from falling according to claim 1 or 2. A sub-reel on which the second string-like body is wound so as to be pulled out is rotatably accommodated in the sub-housing to which the connecting portion is fixed, and the force accumulated by the spring accompanying the pull-out operation of the second string-like body is applied to the sub-housing. A sub-buffer that applies to the sub-reel as a force to unwind the second string-like body,
The device for preventing a portable object from falling according to claim 5.

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