JP-7857485-B1 - Fire extinguisher operating lever

Abstract

[Problem] To provide a fire extinguisher operating lever that allows for the safe and easy use of unfamiliar fire extinguishers in emergency situations such as fire outbreaks. [Solution] The operating lever body 20 includes a pivot portion 50 that can be rotatably supported around pin holes 51 and 52 relative to the main body container of the fire extinguisher, a grip portion 40 extending from one side of the pivot portion 50 and that can be gripped together with the fixing lever of the fire extinguisher, and a hose guide portion 60 extending from the other side of the pivot portion 50 and that can guide (regulate) the range of motion of the fire extinguisher hose. The operating lever body 20 has a safety pin hole 53 and a hose insertion hole 61. When the operating lever body 20 is gripped, it rotates around the pin holes 51 and 52, allowing the hose to move within the range of the hose insertion hole and lifting the nozzle hose in the recess 62. This suppresses the erratic movement of the nozzle hose when the extinguishing agent is sprayed and allows the extinguishing agent to be sprayed in the correct direction toward the target. This significantly improves the probability of achieving initial fire suppression. [Selection Diagram] Figure 2

Inventors

• 木村 文夫

Assignees

• 株式会社ホワイトハウス

Dates

Publication Date

20260512

Application Date

20250917

Claims (8)

1. An operating lever for initiating the spraying of fire extinguishing agent from the main container (2) of the fire extinguisher via the hose, The gripping portion (40) is held together with the fixing lever (5) of the fire extinguisher, A rotating part (50) that supports the gripping part so that it can rotate with respect to the main container , A fire extinguisher operating lever comprising: a hose guide portion (60) supported on the side of the rotating portion opposite to the side with the gripping portion, having a guide hole (61), and guiding the fire extinguisher hose (11) inserted through the guide hole as the gripping portion rotates .
2. The fire extinguisher operating lever according to claim 1, A fire extinguisher operating lever, comprising a gripping portion, a rotating portion, and a hose guide portion, is integrally formed and is a long component overall.
3. The operating lever for a fire extinguisher according to claim 2, A fire extinguisher operating lever with a U-shaped cross-section perpendicular to its longitudinal direction .
4. The fire extinguisher operating lever according to claim 2 or 3, which is operable integrally with the movable lever (6) for initiating the spraying of the fire extinguishing agent in the fire extinguisher , and has a shape that covers the upper surface of the movable lever.
5. The hose guide portion is an operating lever for a fire extinguisher according to any one of claims 1 to 3, having a recess (62) at its tip.
6. The fire extinguisher operating lever according to claim 2 or 3, wherein the hose guide portion has a bent portion (21) on the rotating portion side and is inclined toward the main container side with respect to the extension line of the gripping portion .
7. The fire extinguisher operating lever according to claim 2 or 3, wherein at least the gripping portion of the gripping portion and the rotating portion has a safety pin hole (53) through which the safety pin (7) of the fire extinguisher can be inserted.
8. A fire extinguisher equipped with an operating lever for fire extinguishers as described in any one of claims 1 to 3.

Description

This invention relates to an operating lever for a fire extinguisher. Patent Document 1 describes a device for automatically releasing the safety pin of a fire extinguisher. The device features a release mechanism on the curved section of the fire extinguisher hose. When the hose is pointed towards the source of the fire, the release mechanism operates around a pivot point, releasing a spring and causing the safety pin to pop out. This ensures that in the event of a fire, pointing the hose towards the source automatically releases the safety pin, enabling effective initial fire suppression. Furthermore, Patent Document 2 describes a safety device for a fire extinguisher in which a rotating piece rotates as the hose is raised or lowered. An annular portion formed at the tip of the rotating piece loosely fits onto the hose, securing it in place. This allows the activation lever to be freely pressed down, enabling smooth activation of the fire extinguisher in case of operational error. Japanese Patent Application Publication No. 10-248952Full Text of Utility Model Publication No. 58-9162 A side view of the operating lever for a fire extinguisher according to the first embodiment of the present invention.View of the first embodiment of the present invention, as seen by arrow II.Figure 2 shows a cross-sectional view along line III-III.A perspective view of a fire extinguisher to which the operating lever for a fire extinguisher according to the first embodiment of the present invention is applied.A front view of a fire extinguisher to which the operating lever for a fire extinguisher according to the first embodiment of the present invention is applied.A front view illustrating the operation of a fire extinguisher to which the first embodiment of the present invention is applied.View taken in the direction of arrow VII in Figure 6.A front view of a fire extinguisher corresponding to Figure 5, to which the operating lever for a fire extinguisher according to the second embodiment of the present invention is applied.A diagram illustrating the usage of fire extinguishers in a comparative configuration.A diagram illustrating the usage of fire extinguishers in a comparative configuration. The following describes the operating lever for a fire extinguisher according to an embodiment of the present invention, based on the drawings. Note that substantially identical components in multiple embodiments are denoted by the same reference numerals, and their descriptions are omitted. (First Embodiment) An operating lever for a fire extinguisher according to the first embodiment of the present invention will be described with reference to Figures 1 to 3. The operating lever body 20 corresponding to the fire extinguisher operating lever (movable lever) of the present invention, as shown in Figures 1 to 3, is a long, elongated member with a U-shaped basic cross-section. Functionally, the operating lever body 20 has a gripping portion 40 that can be grasped by the operator, a rotating portion 50 that can be rotatably supported on a member fixed to the fire extinguisher body 1, and a hose guide portion 60 that guides the hose 11. The gripping portion 40, the rotating portion 50, and the hose guide portion 60 are integrally formed within the operating lever body 20. Furthermore, the operating lever body 20 has a shape that includes a bent portion 21 that bends toward the leg portions 201 and 202 in the U-shaped cross-section. This allows the fire extinguisher body 1, including the hose 11, to be more compact when the operating lever body 20 is assembled to the fire extinguisher body 1, without hindering the hose 11 from bending flexibly toward the shoulder portion of the main container 2. The gripping section 40 is the part that the operator can grip together with the fixing lever 5. The maximum longitudinal length of the rotating section 50 of the gripping section 40 from the pin holes 51 and 52 is shorter than the maximum longitudinal length of the hose guide section 60 from the pin holes 51 and 52. The rotating part 50 has pin holes 51 and 52 through which a pin (not shown) can be inserted into a pin hole formed in a member fixed to the main body container 2. The pin holes 51 and 52 are formed in the U-shaped cross-sectional portions 201 and 202 of the operating lever body 20. The rotating part 50 has a safety pin hole 53 through which the safety pin 7 on the fire extinguisher body can be inserted after assembly. During firefighting, the safety pin 7 can be pulled out from the main container 2 through the safety pin hole 53. The hose guide section 60 is the portion extending from the rotating section 50 toward the opposite gripping section, and has a hose insertion hole 61 corresponding to a first guide hole through which the hose 11 can be guided (inserted). During firefighting operations, when the nozzle 13 is released from the locking section 30, the hose 11 changes shape from a curved state to a straight state. The hose gui