JP5081302B2 - Fire extinguisher hand lever, fire extinguisher valve box, fire extinguisher valve, and fire extinguisher - Google Patents

Description

  The present invention relates to a hand lever for a fire extinguisher, a valve box for a fire extinguisher, a valve for a fire extinguisher, and a fire extinguisher.

  Conventionally, a fire lever is attached with a hand lever for releasing a fire extinguisher filled inside the fire extinguisher. As the hand lever, there are an activation lever that rotates between an open state that separates the fixed lever and the fixed lever and a closed state that is close to the fixed lever, a rotation shaft that is the center of rotation of the activation lever, and an activation lever. There has been proposed one that includes a tilting lever that rotates between a standing state that is fixed in the open state and a tilted state that releases the starting lever from the open state, and a rotation shaft that is the center of rotation of the tilting lever. (See Patent Document 1 and Patent Document 2).

  The hand lever configured as described above requires a large number of parts, and it has been difficult to reduce the manufacturing cost and the number of manufacturing steps. On the other hand, it has been a disaster that each part of the fire extinguisher has been made of metal, and it has been difficult for ordinary adults as well as children and the elderly. In particular, there are still many cases where children and the elderly do not know how to handle the hand lever of a fire extinguisher, and the possibility of an unexpected situation due to incorrect handling and operation is not zero.

In addition, regarding a fire extinguisher valve box that is a part of a hand lever, conventionally, a valve box mounted on a main body container, a valve shaft inserted into the valve box, and a valve body configuration provided on a tip surface of the valve shaft The technology of a valve provided with a disk for valve and rubber for valve element composition inserted in a disk for valve element composition is indicated (for example, patent documents 3).
JP 2001-252369 A JP 2006-20738 A JP 2005-143605 A

  In the valve configured as described above, in order to increase the liquid tightness between the valve box and the valve shaft in the forward / backward movement path of the valve shaft different from the flow path of the extinguishing agent in the valve box, It was necessary to make the dimensional accuracy of the valve shaft precise. For this reason, it is necessary to perform secondary processing of the valve box and the valve shaft, or to attach an elastic material such as an O-ring to the valve box and the valve shaft. As a result, there has been a decrease in yield and a significant increase in manufacturing cost due to an increase in the number of manufacturing processes.

  By solving the above technical problems, the present invention greatly contributes to reducing the manufacturing cost and the number of manufacturing processes of a fire extinguisher hand lever, a fire extinguisher valve box, a fire extinguisher valve, or a fire extinguisher, and a fire lever hand lever. Or, the handling of fire extinguishers is greatly improved.

  One hand lever for a fire extinguisher according to the present invention includes a lid attached to an opening of a container body filled with a fire extinguishing agent, a fixing lever integrated with the lid, and a flexible portion. And an activation lever connected to the lid so as to be rotatable between an open state separated from the fixed lever and a closed state close to the fixed lever.

  According to this fire extinguisher hand lever, since the fixed lever is integrated with the lid, the number of parts (for example, a rotating shaft) can be reduced. That is, since the starting lever rotates around the flexible portion, a rotating shaft like a conventional fire extinguisher hand lever becomes unnecessary. Therefore, it is not necessary to adjust the rotation center between the start lever and the lid, and the manufacturing cost and the number of manufacturing steps can be reduced.

  Another fire extinguisher hand lever of the present invention includes a resin lid attached to an opening of a container body filled with a fire extinguishing agent, a resin fixing lever fixed to the lid, and a thin wall A resin-made portion is formed and is connected to the lid body so as to be rotatable between an open state separated from the fixed lever and a closed state adjacent to the fixed lever, with the thin-walled portion as a center. And an activation lever.

  According to this fire extinguisher hand lever, since the lid, the fixing lever, and the activation lever are made of resin, the fire extinguisher can be reduced in weight and easily carried. Moreover, since the thin part made from resin is formed and this thin part becomes a rotation center, for example, it becomes possible to rotate without requiring a rotating shaft member. On the other hand, for example, if it is a conventional metal hand lever, because of its good thermal conductivity, the surface of the hand lever becomes cold in winter and the operability of the operator is poor, but if it is made of resin, Due to poor thermal conductivity, operability is hardly affected even in winter. Moreover, if it is a metal hand lever, rust may generate | occur | produce according to the environment where a fire extinguisher is arrange | positioned, but if it is resin, there is no possibility of that.

  Also, one fire extinguisher valve box of the present invention is a fire extinguisher valve box integrally molded using a plurality of partial molds, and one of the above-mentioned partial molds and the other of the above-mentioned partial molds. And a protrusion disposed in the path of the forward / backward movement different from the flow path of the extinguishing agent, and the valve rod that opens and closes the valve by the forward / backward movement is in close contact with the forward / backward movement. It is formed with resin.

  Since the fire extinguisher valve box is made of resin, the fire extinguisher itself can be reduced in weight. In addition, the protrusions of the fire extinguisher valve box are inevitably formed along the outer periphery of the mating surfaces of the partial molds during integral molding using a resin typified by injection molding. For this reason, the shape of the protrusion is functionally utilized, such as being devised to be formed on the back side that is not visible from the front or because it is detrimental to the appearance. Will never be done. Accordingly, attention has been paid to adjustment of the mold design to make the protrusions as small as possible and early replacement of the molds to prevent the protrusions from becoming large due to wear of the molds. However, this valve box for a fire extinguisher rather uses this projection to ensure liquid-tightness when the valve stem moves back and forth. Therefore, it is not necessary to process the contact portion with the valve stem by another process after integral molding, and it is not necessary to perform secondary processing of the valve box itself or the valve stem. Moreover, since the above-mentioned protrusion itself is also made of resin, it has appropriate elasticity. As a result, this protrusion can always be in close contact with the valve stem without separately attaching an elastic material such as an O-ring. Furthermore, since this protrusion is disposed in the forward / backward movement path of the valve stem that is different from the flow path of the extinguishing agent, the flow path of the extinguishing agent is not blocked.

  According to the fire extinguisher hand lever, the fire extinguisher valve box, the fire extinguisher valve, or the fire extinguisher of the present invention, the number of parts can be reduced. Therefore, the manufacturing cost and the number of manufacturing processes can be reduced.

It is a perspective view which shows the fire extinguisher in one embodiment of this invention. It is a front view which shows the fire extinguisher in one embodiment of this invention. It is a fragmentary sectional view which shows a part of fire extinguisher of the state which removed the cover member in one Embodiment of this invention from the front. It is a front view of the fire extinguisher storage container in one embodiment of the present invention. It is a fragmentary sectional view shown from the front except a safety stopper and a cover member among fire extinguisher hand levers in one embodiment of the present invention. It is a perspective view which shows the safety stopper in one embodiment of this invention. It is a fragmentary sectional view which shows the valve | bulb including the cover body and fixing lever in one Embodiment of this invention from the front. It is sectional drawing which expands and shows the X section of FIG. It is a schematic sectional drawing which expands and shows the projection part of the cover body formed of a some partial metal mold | die in one Embodiment of this invention. It is a perspective view which shows the starting lever in one embodiment of this invention. It is a perspective view which shows the raising / lowering trap in one embodiment of this invention. It is a flowchart explaining the process of using the fire extinguisher in one embodiment of this invention. It is a figure which shows the open state of the starting lever in one embodiment of this invention. It is a figure which shows the closed state of the starting lever in one embodiment of this invention. It is a front view which shows the fire extinguisher in other embodiment of this invention. It is a fragmentary sectional view which shows the hand lever for fire extinguishers in other embodiment of this invention from the front. It is a figure which shows the open state of the starting lever in other embodiment of this invention. It is a figure which shows the closed state of the starting lever in other embodiment of this invention. It is a front view which shows the starting lever in one modification of one embodiment of this invention. It is a front view which shows the raising / lowering in one modification of one embodiment of this invention. It is a schematic sectional drawing which expands and shows the projection part formed of several partial metal mold | dies in one modification of one embodiment of this invention.

  Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this description, common parts are denoted by common reference symbols throughout the drawings unless otherwise specified. In the drawings, the elements of the present embodiment are not necessarily shown to scale. In addition, in order to make each drawing easy to see, some symbols may be omitted.

<First Embodiment>
FIG. 1 is a perspective view showing a fire extinguisher 100 according to the present embodiment, and FIG. 2 is a front view thereof. FIG. 3 is a partial cross-sectional view showing a part of the fire extinguisher 100 with the cover member 36 removed from the front.

  A fire extinguisher 100 shown in FIGS. 1 and 2 includes a known fire extinguisher storage container 10 filled with a fire extinguishing agent 60 (for example, a powder fire extinguishing agent), and a fire extinguisher hand disposed above the fire extinguishing agent storage container 10. The lever 30, the siphon pipe 20 for guiding the fire extinguisher 60 stored in the fire extinguisher storage container 10 to the fire extinguisher hand lever 30, and the siphon pipe 20 can be circulated by operating the fire extinguisher hand lever 30. And a fire extinguisher hose 40 to be connected.

  First, the fire extinguisher storage container 10 in the present embodiment will be described. FIG. 4 is a front view of the fire extinguisher storage container 10.

  The fire extinguisher storage container 10 in the present embodiment includes a fire extinguisher storage portion 11 and a male screw portion 12 formed in an opening located at the top of the fire extinguisher storage portion 11. The extinguishing agent storage container 10 and the fire extinguisher hand lever 30 are fixed by screwing the male screw portion 12 and the fire extinguisher hand lever 30 together. The fixing means between the extinguishing agent storage container 10 and the fire extinguisher hand lever 30 is not limited to screwing, and known joining means can be applied.

  Next, the cover member 36 shown in FIGS. 1 and 2 will be described.

  The cover member 36 shown in FIGS. 1 and 2 covers the lid 31, the fixing lever 32, and the activation lever 33 shown in FIG. 3. The cover member 36 is preferably formed of one kind of resin selected from the group consisting of acrylonitrile / butadiene / styrene copolymer synthetic resin, polyethylene, and polypropylene. The above-mentioned material is a strong weather resistant material. In other words, the influence of ultraviolet rays and heat from sunlight, the erosion action by rainwater, the influence of expansion / contraction and expansion of the material due to temperature changes during the day and night are small, and the risk of alteration such as deformation, discoloration and deterioration is small. For this reason, even if a weak weather-resistant material is adopted as the material of the lid 31, the fixing lever 32, and the activation lever 33, the lid 31, the fixing lever 32, and the activation lever 33 can be altered, such as deformation, discoloration, and deterioration. Can be prevented.

  The cover member 36 includes a cover main body portion 36 a that covers the lid 31, a fixed lever cover portion 36 b that covers the fixed lever 32, and an activation lever cover portion 36 c that covers the activation lever 33. The start lever cover portion 36c is attached to the fixed lever cover portion 36b so as to be movable in the vertical direction. For this reason, the starting lever 33 can be rotated from the open state to the closed state by moving the starting lever cover portion 36c in a direction (downward) close to the fixed lever cover portion 36b. In addition, the activation lever cover portion 36c maintains a state in which the outer side surface of the activation lever cover portion 36c and the inner side surface of the fixed lever cover portion 36b are brought close to each other so that an operator's finger cannot enter (2 mm or less). Moving. For this reason, an operator's hand and a finger are pinched between starting lever cover part 36c and fixed lever cover part 36b, and it does not get hurt. Note that the vertical width h (see FIG. 2) between the fixed lever cover portion 36b and the start lever cover portion 36c is set within a range that can be held with one hand by an operator. It is considered preferable to be 70 mm or less. In the present embodiment, the movement is performed while maintaining the state where the outer side surface of the activation lever cover portion 36c and the inner side surface of the fixed lever cover portion 36b are close to each other, but the present invention is not limited to this. Conversely, an aspect in which the inner side surface of the activation lever cover portion 36c and the outer side surface of the fixed lever cover portion 36b are moved in proximity to each other also exhibits the same effect as described above.

  Next, the fire extinguisher hand lever 30 in the present embodiment will be described. FIG. 5 is a partial cross-sectional view from the front of the fire extinguisher hand lever 30 except for the safety plug 35 and the cover member 36.

  The fire extinguisher hand lever 30 according to the present embodiment includes a lid 31 as a valve box constituting a valve, a fixing lever 32, an activation lever 33, a raising / lowering rod 34, a safety stopper 35, and a cover member 36 (see FIG. 1 and FIG. 2). In addition, the cover body 31, the fixing lever 32, the starting lever 33, and the raising / lowering rod 34 are formed with resin. For this reason, compared with the case where it forms with a metal like the past, it becomes very lightweight. Further, since the degree of freedom in shape increases, a large number of parts can be formed as one part, and the number of parts, manufacturing cost, and number of manufacturing processes can be reduced. More specifically, the lid body 31 and the fixing lever 32 can be easily integrated by being formed of resin. For this reason, the manufacturing cost and the number of manufacturing processes for the combination can be reduced. In addition, since a rotating shaft for enabling the lid body 31 and the start lever 33 to rotate and a rotating shaft for enabling the lid body 31 and the raising / lowering rod 34 to rotate are not required, the axis thereof It is also possible to reduce the manufacturing cost and the number of manufacturing processes for the adjustment.

  FIG. 6 is a perspective view showing the safety stopper 35.

  As shown in FIGS. 3 and 6, the safety plug 35 includes an engagement protrusion 35a, an insertion rod 35b, and a gripping portion 35c. The insertion rod 35b includes an opening (not shown) formed in the cover member 36, a first opening 33d (see FIG. 8) formed in the activation lever 33, and an opening 34d formed in the raising / lowering rod 34. It has the length which can be inserted in. Further, the engagement protrusion 35 a passes through an opening (not shown) formed in the cover member 36 and a second opening 33 e (see FIG. 10) formed in the activation lever 33 and engages with the raising / lowering rod 34. It has a shape that can be made. When the fitting rod 35b of the safety plug 35 is fitted into the cover member 36, the activation lever 33, and the raising / lowering rod 34, and when the engaging projection 35a is engaged with the raising / lowering rod 34, the raising / lowering rod 34 and the activation lever 35 are activated. The lever 33 is unable to rotate. On the other hand, when the safety plug 35 is removed from the cover member 36, the activation lever 33, and the raising / lowering rod 34, the raising / lowering rod 34 and the activation lever 33 become rotatable. The gripping portion 35c is for gripping by the operator when the safety stopper 35 is removed from the cover member 36, the activation lever 33, and the raising / lowering rod 34. The grip portion 35c is formed in a shape that is partially opened. By adopting this shape, the operator's finger can be easily applied to the grip portion 35c.

  FIG. 7 is a partial cross-sectional view showing the valve including the lid 31 and the fixing lever 32 from the front. FIG. 8 is an enlarged cross-sectional view of a portion X in FIG.

  As shown in FIG. 7, the valve biases the valve rod 72, a lid 31 that functions as a valve box, a valve rod 72 that is located in the lid 31, a valve body 73 that fixes the valve rod 72, and the valve rod 72. And a spring 74.

  The lid 31 is made of resin (made of polyamide 6 in the present embodiment), and is integrally molded by an injection molding method using a plurality of partial molds. For this reason, compared with what is formed with the conventional metal, it is reduced in weight drastically. The lid 31 is integrally formed with the fixing lever 32 of the fire extinguisher hand lever 30. In addition, a female screw portion 31j is formed inside the lid body 31, and the female screw portion 31j is screwed with the male screw portion 12 formed in the fire extinguisher storage container 10, whereby the lid body 31 is formed. Attached to the fire extinguisher storage container 10.

  Also, several functional parts are formed on the lid 31. Specifically, the packing fixing part 31a fixes a packing (not shown) for restraining the tip of the siphon tube 20 and maintaining an airtight or liquidtight state between the extinguishing agent storage container 10 and the valve. Used for. Further, the fire extinguisher 60 is discharged to the outside from the siphon tube 20 through the flow path 31b and the fire extinguisher hose 40 by operating the fire extinguisher hand lever 30. Moreover, the tip of the fire extinguisher hose 40 is fixed by the fire extinguisher hose fixing portion 31c. In addition, the valve box side spring receiving portion 31e is formed in a convex shape on the inner peripheral surface of the forward / backward movement path 31d of the valve rod 72, and a protrusion 31f is formed at the tip of the valve box side spring receiving portion 31e. . As shown in FIGS. 7 and 8, the protrusion 31 f is formed at a location different from the flow path of the extinguishing agent 60, in other words, so as not to disturb the flow of the extinguishing agent 60. Further, the valve seat 31g is formed so as to close the flow path 31b by being in close contact with the valve body 73.

  The valve rod 72 constituting the valve includes a rod-shaped portion 72 a, a valve rod-side spring receiving portion 72 b that is convexly formed on the outer peripheral surface of the upper end of the rod-shaped portion 72 a, and a valve body engaging portion 72 c that is fixed to the valve body 73. Composed. In the valve rod 72, the rod-shaped portion 72a moves forward and backward in the forward / backward movement path 31d while being in close contact with the protruding portion 31f. Further, a spring 74 is disposed between the valve box side spring receiving portion 31e and the valve stem side spring receiving portion 72b. Thereby, the valve stem 72 is urged in the direction in which the valve body 73 is in contact with the valve seat 31g (upward in FIG. 7).

  Next, molding of the lid body 31 in this embodiment will be described. FIG. 9 is an enlarged schematic cross-sectional view showing the protrusion 31f of the lid 31 formed by a plurality of partial molds.

  As described above, the protrusion 31f is disposed in the forward / backward movement path 31d of the valve rod 72, which is different from the flow path 31b of the extinguishing agent. For this reason, the protrusion 31 f does not block the flow path 31 b of the fire extinguishing agent 60 and obstruct the flow of the fire extinguishing agent 60. Further, as shown in FIG. 9, the protrusion 31 f is formed in the advance / retreat movement path 31 d of the valve stem 72 along the outer periphery of the mating surface of one partial mold A and another partial mold B. . That is, in the present embodiment, the partial mold A for forming the valve box side spring receiving portion 31e and the forward / backward movement path 31d of the valve rod 72 and the partial mold for forming a part of the flow path of the extinguishing agent 60. The protrusion 31 f inevitably formed along the mating surface of B is used to ensure liquid tightness with the valve stem 72. As a result, it is possible to form the protrusion 31f having fine and appropriate elasticity even in the injection molding that is generally considered to be difficult to perform precision processing. Therefore, the valve stem 72 can move forward and backward while being in close contact with the protrusion 31f. Thereby, it is possible to prevent the extinguishing agent 60 from leaking out of the forward / backward movement path 31d without interposing a member such as an O-ring.

  By the way, as shown in FIG. 9, the partial mold B of the present embodiment forms at least a part of the forward / backward movement path 31 d of the valve rod 72. In addition, the partial mold B is a surface substantially along the advancing and retreating direction from the end B1 of the mating surface with another partial mold A through an inclined surface B2 in a direction away from the partial mold A. B3. By providing the partial mold B with such a shape, the controllability of the protrusion 31f can be improved with higher accuracy.

  Preferably, the dimension of the protrusion 31f is set as follows. For example, in the conventional example, when the diameter of the valve stem 72 is set in the range of 5.95 mm or more and 6 mm or less, the inner diameter of the O-ring for causing the valve stem 72 to advance and retract in a close state is 5.65 mm or more and 5 mm or less. It is defined by Japanese Industrial Standards to be within a range of .95 mm or less. Here, since the protrusion 31f is formed by the gap between the partial mold A and the partial mold B, as shown in FIG. 9, a triangular cross section having a sharp tip is formed. . For this reason, it is thought that the front-end | tip part deform | transforms more easily than the contact part of an O-ring. Therefore, when the contact area between the protrusion 31f and the valve stem 72 is too small, the contact pressure between the protrusion 31f and the valve stem 72 may be lower than the pressure of the extinguishing agent 60 stored in the extinguishing agent storage container 10. possible. In such a situation, the extinguishing agent 60 leaks from the contact portion between the protrusion 31f and the valve stem 72. Therefore, in order to maintain the contact state between the protruding portion 31f and the valve stem 72 that resists the pressure of the extinguishing agent 60, the diameter of the ring formed by the assembly of the most advanced portions of the protruding portion 31f is 5.65 mm or more. It is preferable to set it to 8 mm or less. That is, it is preferable that the upper limit of the diameter of the ring formed by the assembly of the most distal end portions of the protrusion 31f be less than 97.5% of the upper limit of the inner diameter of the O-ring.

  The lid 31 is formed with an activation lever engaging portion 31h for engaging the activation lever 33 and a raising / lowering hook engaging portion 31i for engaging the raising / lowering rod 34.

  FIG. 10 is a perspective view showing the activation lever 33.

  The activation lever 33 includes a lever portion 33a, a thin portion 33b, and a lid engaging portion 33c. The activation lever 33 is connected to the lid 31 by engaging the lid engaging portion 33 c and the activation lever engaging portion 31 a of the lid 31. The lever portion 33a is formed with a first opening 33d through which the engagement protrusion 35a of the safety plug 35 passes and a second opening 33e into which the insertion rod 35b of the safety plug 35 is inserted. The thin portion 33b is formed so thin that it can be bent by applying a pressing force. When a pressing force is applied to the lever portion 33a of the activation lever 33, the thin portion 33b bends without being able to withstand this pressing force. When the thin portion 33b is bent in this manner, the thin portion 33b is rotated with respect to the lid 31 around the thin portion 33b. In the activation lever 33, a state where the start lever 33 is separated from the fixed lever 32 is referred to as an open state (see FIG. 13A), and a state close to the fixed lever 32 is referred to as a closed state (see FIG. 13B).

  With the above-described mechanism, the lever portion 33a of the fire extinguisher hand lever 30 can rotate without separately providing a rotation shaft for the rotation. As described above, in the present embodiment, a part of the activation lever 33 functions as the rotation shaft, so that it is possible to reduce the manufacturing process for adjusting the axis and reduce the manufacturing cost. It is done.

  FIG. 11 is a perspective view showing the raising / lowering rod 34.

  The raising / lowering rod 34 includes a thin wall portion 34a, a safety plug engaging portion 34b, and a lid engaging portion 34c, and an opening 34d into which the insertion rod 35b of the safety plug 35 is inserted. The raising / lowering rod 34 is connected to the lid 31 by the engagement of the lid engaging portion 34 c and the raising / lowering hook engaging portion 31 i of the lid 31. The thin portion 34a is formed to be thin enough to be bent by applying a pressing force. When a pressing force is applied to the lever portion 33 a of the activation lever 33, the activation lever 33 rotates and the pushing lever 34 is applied with a pressing force by the activation lever 33. When pressing force is applied to the raising / lowering rod 34 by the start lever 33, the thin portion 34a bends without being able to withstand this pressing force. When the thin portion 34a is bent in this way, the raising / lowering rod 34 is rotated with respect to the lid 31 around the thin portion 34a. In the raising / lowering rod 34, a state in which the activation lever 33 is fixed in the open state is referred to as an upright state (see FIG. 13A), and a state in which the activation lever 33 is released from the open state is referred to as a tilted state (see FIG. 13B).

  By the above-described mechanism, the raising / lowering rod 34 can be rotated without separately providing a rotating shaft for the rotating motion. Thus, in this embodiment, since a part of the raising / lowering rod 34 functions as a rotating shaft, it becomes possible to reduce the manufacturing process for adjusting the axis, and to reduce the manufacturing cost. Figured.

  Next, the case where the fire extinguisher 100 of this embodiment is used will be described. FIG. 12 is a flowchart for explaining a process of using the fire extinguisher 100. FIG. 13A is a diagram illustrating an open state of the activation lever 33 according to the present embodiment (that is, a standing state of the raising / lowering rod 34), and FIG. 13B illustrates a closed state (that is, the activation lever 33 according to the present embodiment). It is a figure which shows the tilting state of the raising / lowering rod 34).

  When using the fire extinguisher 100, first, the safety plug 35 is removed, and the raising / lowering rod 34 is brought into a rotatable state (step S1). Next, the tip of the fire extinguisher hose 40 bonded to the fire extinguisher storage container 10 is removed from the fire extinguisher storage container 10, and the tip of the fire extinguisher hose 40 is directed to the flame or the surrounding direction (step S2). In addition, the front-end | tip of the fire extinguisher hose 40 and the fire extinguisher storage container 10 shall be adhere | attached in the state which is easy to remove. As an example of this adhesion, for example, a hook-and-loop fastener can be mentioned.

  When the preparation for injecting the extinguishing agent 60 is completed, the operator holds the fixed lever cover portion 36b and the activation lever cover portion 36c of the cover member 36. Then, the activation lever cover part 36c is pressed in the direction approaching the fixed lever cover part 36b (step S3). When the activation lever cover part 36c is pressed in this way, as shown in FIGS. 13A and 13B, the activation lever 33 is pressed by the activation lever cover part 36c and rotated from the open state to the closed state (step S4). ). With the rotation of the activation lever 33, the raising / lowering rod 34 is rotated from the standing state to the inclined state (step S5). When the activation lever 33 is rotated, the valve is released by the activation lever 33 (step S6). When the valve is released, the extinguishing agent 60 stored in the extinguishing agent storage container 10 is injected toward the flame or its surroundings (step S7).

<Second Embodiment>
FIG. 14 is a front view showing the fire extinguisher 200 according to the second embodiment.

  The fire extinguisher 200 of the present embodiment has the same configuration as the fire extinguisher 100 of the first embodiment except that the cover member 36 constituting the fire extinguisher 100 of the first embodiment is omitted. By adopting the fire extinguisher hand lever 130 without the cover member 36 as in the present embodiment, the manufacturing cost of the fire extinguisher hand lever 130 and the process of combining the fire extinguisher hand lever 130 and the cover member 36 can be reduced. it can. However, it is preferable to provide the cover member 36 in consideration of the possibility that the operator's hand or finger is caught between the activation lever 33 and the fixed lever 32.

<Third Embodiment>
FIG. 15 is a partial cross-sectional view showing the fire extinguisher hand lever 230 of this embodiment from the front. FIG. 16A is a diagram illustrating an open state of the activation lever 33 of the present embodiment, and FIG. 16B is a diagram illustrating a closed state of the activation lever 33 of the present embodiment.

  The fire extinguisher 300 of the present embodiment has the same configuration as the fire extinguisher 200 of the second embodiment, except that the raising / lowering rod 34 that is a part of the hand lever 130 for the fire extinguisher of the second embodiment is omitted. It has. By adopting the fire extinguisher hand lever 230 in which the uprising rod 34 is omitted as in this embodiment, the manufacturing cost of the uprising rod 34 and the process of connecting the uprising rod 34 and the lid 31 can be reduced. it can. However, in consideration of stable fixation by the safety stopper 35, it is preferable to provide the raising and lowering rod 34. Moreover, the transition to the closed state of the start lever 33 is moderately inhibited by the biasing force to the start lever 33 because the thin portion 34a is provided, and the fire extinguishing agent 60 is ejected by the operator's unexpected operation of the start lever 33. Is prevented. In consideration of such safety, it is preferable to provide the raising / lowering rod 34.

  By the way, in each embodiment mentioned above, although a well-known metal container is employ | adopted as the fire extinguisher storage container 10, it is not limited to this. For example, a resin container may be employed as the fire extinguishing agent storage container 10.

  Moreover, in each embodiment mentioned above, although the structure provided with the resin starting lever 33 provided with the thin part 33b and the resin raising lever 34 provided with the thin part 34a is employ | adopted, it is not limited to this. The activation lever and the raising / lowering rod are not limited to resin. For example, the activation lever 433 in FIG. 17 provided with a leaf spring 433b in a part thereof and the raising lever 434 in FIG. 18 provided with a leaf spring 434a in a part thereof. Such a configuration can also be adopted. Even in the case of the activation lever 433 shown in FIG. 17 and the raising / lowering rod 434 shown in FIG. 18, the rotation between the lid 31 and the activation lever 433 and the lid 31 and the raising / lowering rod 434 are performed. A rotating shaft for rotation between the rotating shaft and the rotating shaft is unnecessary, so that the number of parts can be reduced, and the manufacturing cost and the number of manufacturing steps for adjusting the rotating shaft center can be reduced.

  Moreover, in each embodiment mentioned above, the structure which integrally forms the cover body 31 and the fixed lever 32 is employ | adopted, However, the cover body 31 and the fixed lever 32 are formed independently, and well-known adhesion | attachment is carried out. A configuration of joining with an agent may also be employed.

  Moreover, in each embodiment mentioned above, although the cover body 31 made from polyamide 6 is employ | adopted, it is not limited to this. For example, in addition to polyamide 66, the cover is made of synthetic fiber obtained by condensation polymerization of adipic acid and hexamethylene diamine, or a group of polyamide synthetic polymers having a similar structure, fluororesin, phenol resin, or polyethylene resin. 31 may be molded. However, the polyamide 6 has a gas permeability of about 1/40 times that of polyethylene. That is, the resin has an advantageous feature that it has a relatively low gas permeability. That is, if the close state between the valve stem 72 and the protrusion 31f is ensured, gas leakage from the lid 31 itself can be prevented, so that the pressure inside the extinguishing agent storage container 10 can be maintained. . Furthermore, the polyamide 6 does not contain substances that are considered to have an adverse effect on the environment and the human body, such as phenol resin containing formaldehyde and vinyl chloride (a material that may generate dioxin by combustion). In addition, the polyamide 6 is low in cost compared to other resins. For the above reasons, it is preferable to employ the lid body 31 made of polyamide 6.

  Further, in each of the above-described embodiments, the spring 74 is employed as the biasing means of the valve rod 72 in the direction (upward direction) in which the valve body 73 is in contact with the valve seat 31f, but the present invention is not limited to this. As an urging means for the valve rod 72, a known urging means such as rubber or other elastic body may be employed.

  Moreover, in each embodiment mentioned above, although the range of 5.95 mm or more and 6 mm or less is mentioned as a specific example of the diameter of the valve rod 72, it is not limited to this. The diameter of the valve stem 72 may be less than 5.95 mm or a value exceeding 6 mm. However, regardless of the diameter, it is preferable that the upper limit of the diameter of the ring formed by the assembly of the most distal portions of the protrusion 31f be less than 97.5% of the upper limit of the inner diameter of the O-ring.

  Moreover, in each embodiment mentioned above, although the partial metal mold B employ | adopts the structure which has the surface B3 substantially along the advancing / retreating direction of the valve rod 72, it is not limited to this. For example, as shown in FIG. 19, the structure which has the inclined surface B4 which continues to B2 may be sufficient.

  Moreover, in each embodiment mentioned above, although the projection part 31f is formed using the partial metal mold | die B which has the surface B3 through the inclined surface B2 from the edge part B1, the partial gold | metal | money in which the inclined surface B2 is not formed. The protrusion 31f may be formed using a mold. That is, the protrusion 31f may be formed using only the gap between the mating surfaces of the partial molds. In this case, the manufacturing process for forming the inclined surface B2 can be reduced. However, in this case, since it is relatively difficult to perform precise dimensional control of the protrusion 31f, the protrusion 31f is formed using the partial mold B having the surface B3 from the end B1 through the inclined surface B2. The formation is preferable in that stable production is achieved.

  Moreover, in each embodiment mentioned above, although the projection part 31f is formed, you may ensure a close state with the valve stem 72 using an O-ring instead of forming the projection part 31f. As described above, modifications that exist within the scope of the present invention are also included in the claims.

The present invention can be widely used as a fire extinguisher hand lever, a fire extinguisher valve box, a fire extinguisher valve, and a fire extinguisher.

Claims (12)

A lid attached to the opening of the container body filled with a fire extinguishing agent;
A fixing lever integrated with the lid,
An activation lever connected to the lid so as to be rotatable between an open state spaced apart from the fixed lever and a closed state close to the fixed lever, the flexible lever having a flexible portion as a center; Fire extinguisher hand lever. The lid includes a flexible portion, and the lid is rotatable about the flexible portion between an upright state in which the start lever is fixed in the open state and a tilted state in which the start lever is released from the open state. The hand lever for a fire extinguisher according to claim 1, further comprising a raising and lowering hook connected to the body. The hand lever for a fire extinguisher according to claim 2, further comprising a safety stopper that fixes the start lever and the raising / lowering rod in an upright state of the rising / falling rod. The hand lever for a fire extinguisher according to claim 1, wherein the activation lever is formed of resin, and the flexible portion of the activation lever is formed thin. A resin lid attached to the opening of the container body filled with a fire extinguishing agent;
A resin fixing lever fixed to the lid;
A resin-made starting lever that is formed with a thin-walled portion and is connected to the lid so as to be rotatable between an open state separated from the fixed lever and a closed state close to the fixed lever, with the thin-walled portion as a center. A fire extinguisher hand lever. A cover member that covers the lid, the fixing lever, and the activation lever;
The hand lever for a fire extinguisher according to claim 1 or 5, wherein the cover member is formed of one kind of resin selected from the group consisting of acrylonitrile / butadiene / styrene copolymer synthetic resin, polyethylene, and polypropylene. The cover member includes a cover main body that covers the lid, a fixed lever cover that covers the fixing lever, and an activation lever cover that covers the activation lever.
The hand lever for a fire extinguisher according to claim 6, wherein the start lever cover portion moves while maintaining a state in which an outer side surface of the start lever cover portion and an outer side surface of the fixed lever cover portion are brought close to each other.   A fire extinguisher comprising the fire extinguisher hand lever according to claim 1 or 5. A fire extinguisher valve box integrally molded using a plurality of partial molds,
A valve rod which is located on the outer periphery of the mating surface between one partial mold and the other partial mold and which opens and closes the valve by advancing and retreating movement is in close contact with the advancing and retreating movement, and a flow path for the extinguishing agent. A valve box for a fire extinguisher made of resin, comprising protrusions arranged in the paths of different forward and backward movements. The one partial mold forms a part of the forward / backward movement path and is inclined in a direction away from the other one partial mold from an end of a mating surface with the other one partial mold The fire extinguisher valve box according to claim 9, which has a surface. A fire extinguisher valve box according to claim 9;
A fire extinguisher valve comprising the valve stem and a fixed valve body. A container body filled with a fire extinguishing agent;
A fire extinguisher comprising: the fire extinguisher valve box according to claim 9 attached to an opening of the container body.

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