JP5952404B2 - Signal tube ignition device - Google Patents

Description

  The present invention relates to an ignition device for a signal cylinder filled with a flame or smoke agent, and more particularly, to a single behavior type ignition device capable of performing reliable ignition in one operation.

  2. Description of the Related Art Conventionally, as a signal cylinder ignition device filled with a flame or smoke agent, one behavior type and two behavior type are known. Among these, the two-behavioral type has two lids, in which the lid provided with the sliding agent is removed from the signal tube body, and the sliding agent is rubbed against the ignition agent of the signal tube body to ignite. Action was necessary. On the other hand, the one behavior type simplifies the ignition operation, removes the lid from the signal cylinder body, and at the same time, the sliding agent provided in the lid and the ignition agent in the signal cylinder body rub and ignite. It is possible to ignite by one operation, and one behavior formula that can ignite more easily in an emergency or emergency is more advantageous.

  For example, as such a behavioral ignition device, Patent Document 1 discloses that when a cap is removed, a rubbing agent of a flexible member whose one end is fixed to the cap comes into contact with an ignition agent of a signal tube to ignite. One possible behavioral ignition mechanism is disclosed.

  However, since this device has a long operating distance from removal of the cap to ignition, it is assumed that the certainty of ignition is not sufficient. And according to the method of patent document 1, since there exists a possibility of pulling a puller in a flame direction, it is estimated that an operator's danger becomes high. In addition, as the configuration becomes complicated, the number of parts increases, the manufacturing cost increases, and the probability of occurrence of defects and defects is considered to increase.

JP 2006-97929 A

  SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a signal cylinder ignition device that overcomes the disadvantages of the conventional one-action type ignition device, ignites safely and reliably with a simple operation, and has a smaller number of parts. Is.

  The present invention solves the above-described problem, and covers three side surfaces of a holding portion having a hollow portion into which a signal tube can be inserted, a top plate covering the upper opening of the hollow portion, and a peripheral wall of the holding portion. And a guide groove on the left and right side surfaces of the holding portion peripheral wall, and on the left and right side walls of the slide lid, a convex groove that fits into the guide groove and is movable along the guide groove. Each of the slide lids is formed so that the holding portion can be removed laterally from an open portion where no side wall is provided, and a slide provided on the back side of the top plate when the slide lid is pulled out. A signal cylinder igniter characterized in that the sticky paper is formed to slide on the ignition agent of the signal cylinder.

  In the signal cylinder ignition device according to the present invention, the ignition means provided on the back side of the top plate slides on the ignition agent of the signal cylinder and reliably ignites by pulling the slide lid laterally from the holding portion. it can. Furthermore, since the components constituting the signal tube ignition device of the present invention are only the holding portion and the slide lid, the manufacturing cost can be reduced.

  Further, in the signal tube ignition device of the present invention, the guide groove on the peripheral wall of the holding portion and the protruding strip portion of the slide lid are inclined so that the slide lid moves along the inclination of the guide groove. As the operation proceeds, the sliding agent is pressed against the ignition agent and slides, and the certainty of ignition is improved.

  Furthermore, in the signal tube ignition device of the present invention, the top plate having flexibility can be stably ignited against variations in the height of the pyrotechnic.

Front view of signal tube ignition device of the present invention Side view of signal cylinder ignition device of the present invention Rear view of the signal tube ignition device of the present invention Top view of the signal tube ignition device of the present invention Bottom view of signal cylinder ignition device of the present invention The perspective view in the open state of the signal cylinder ignition device of this invention (A), (b), (c) Partially cutaway sectional view showing a series of opening operations of the signal cylinder ignition device of the present invention.

  Hereinafter, embodiments of the signal tube ignition device of the present invention will be specifically described with reference to the drawings. Note that the present invention is not limited to these embodiments.

  1 is a front view of the signal tube ignition device of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a rear view thereof, FIG. 4 is a top view thereof, and FIG. In the figure, 1 is a signal cylinder ignition device, 2 is a holding part, 3 is a slide lid, 21 is a peripheral wall, 22 is a notch, 23 is a flat part, 24 is a guide groove, 31 is a top plate, 32 is a side wall, 33 is The drawing portion, 34 is a connecting portion, 35 is a protruding strip portion, 36 is a sliding drug paper, 211 is an upper end of the peripheral wall, 241 is a locking recess, 311 is a slit, and 351 is a locking projection.

  As shown in FIGS. 1 to 5, the signal tube ignition device 1 of the present invention includes a hollow columnar holding portion 2 that can be attached to the signal tube as a basic mode, and a slide lid 3 that can be attached to and detached from the holding portion 2. It is comprised by. The slide lid 3 has a side wall that is open on one side and is formed in a substantially U-shape when viewed from the bottom, and can be attached and detached by sliding the holding part 2 laterally from the open side of the side wall. Is formed. Hereinafter, each member will be described in detail.

  In the present embodiment, the holding portion 2 is formed in a substantially quadrangular prism shape with a corner portion dropped, and the peripheral wall 21 is formed from four corner surfaces between the front surface, the back surface, the left and right side surfaces, and the four peripheral wall surfaces. It is configured. In addition, a hollow portion 25 having an open top and bottom in which a signal tube can be inserted is formed inside, and an inner diameter thereof is formed to a size capable of press-fitting the signal tube body. With this configuration, the signal tube main body can be held by press-fitting the head of the signal tube into the hollow portion 25 from the lower opening, and the top of the signal tube can be exposed from the upper opening.

  The slide lid 3 includes a top plate 31 that covers the upper opening of the hollow portion 25 and a side wall 32 that covers the three side surfaces of the peripheral wall 21 while being attached to the holding unit 2. In this embodiment, the side wall 32 is formed so as to cover from the front surface to the left and right side surfaces of the peripheral wall 21 of the holding portion 2, and is open without providing a side wall on the back side of the peripheral wall 21. The holder 2 can be attached and detached from the opening 37.

  The top plate 31 of the slide lid 3 is formed with slits 311 along the left and right side walls 32, and the peripheral wall upper end 211 on the side surface side of the holding unit 2 is inserted into the slit 311 when mounted on the holding unit 2. Is done. Further, a pull-out portion 33 is suspended from the lower part of the side wall 32 on the front side. The pull-out portion 33 is connected to the side wall 32 so that it can be bent at the connection portion 34, and is formed in a ring shape having a hole portion 331 into which a finger can be inserted. In addition, this extraction part 33 is not limited to what is hung down by the lower part of the side wall 32 like this embodiment, For example, the handle-like shape (for example) which protruded forward from the side wall 32 of the front side ( It may be formed like a handle such as a coffee cup).

  Further, on the back side of the top plate 31, a sliding medicine paper 36 applied with a sliding medicine as an ignition means is affixed (not shown). The sliding drug paper 36 can slide and ignite with the pyrotechnic 41 at the top of the signal tube 4 when the slide lid 3 is removed. Therefore, it is sufficient that the sticking position of the sliding paper 36 is a place where the sliding cover 3 is surely slid with the pyrotechnic 41 during the pulling operation of the slide lid 3, so that it does not accidentally come into contact with the pyrotechnic when not in use. In the closed state, it is preferable to set back behind the explosive 41. Note that the top plate 31 is a flexible material so that the sliding medicine paper 36 and the ignition agent 41 of the signal cylinder 4 can be more reliably slid and the height of the ignition agent can be dealt with. It is preferable to form by. In the present embodiment, the slidable medicine paper 36 coated with the slidable medicine is attached to the back side of the top plate 31, but the method of providing the slidable medicine on the slide lid 3 is not limited to this, for example, A sliding agent may be applied directly to the back side of the top plate 31.

  FIG. 6 is an exploded perspective view of the signal tube ignition device 1 of the present invention. As shown in the figure, guide grooves 24 are recessed in the left and right side surfaces of the peripheral wall 21 of the holding portion 2. The guide groove 24 is formed so as to be inclined obliquely downward toward the pulling direction of the slide lid 3, and an engaging recess 241 that is recessed one step deeper than the other guide groove 24 portion is formed at the rear end portion. Is formed. The inclination angle of the guide groove 24 is not particularly limited as long as the sliding paper 36 is securely slid with the pyrotechnic 41 when the slide cover 3 is removed. It is preferable to set a range in which a load (push upward) is not applied. Specifically, an inclination angle in the range of 10 to 20 ° from the horizontal is preferable, and an inclination angle of 15 ° from the horizontal is particularly preferable.

  The peripheral wall 21 of the holding portion 2 is formed such that the front side is lower than the other peripheral wall portions, and a flat portion 23 is formed from the upper end to the periphery of the hollow portion 25. And the peripheral wall upper end 211 which protrudes further upwards from this flat part 23 is extended in plate shape at the peripheral wall 21 of the side surface side. The rear wall 21 is formed with a notch 22 that is lower than the upper end 211 of the peripheral wall and is recessed by a depth corresponding to the thickness of the top plate 31 of the slide lid 3. Further, the flat portion 23 is provided with a baffle plate or the like for controlling the press-fitting of the signal tube 4 at a position that does not hinder the sliding of the sliding paper 36 and the pyrotechnic 41, and the top of the signal tube 4 is provided on the baffle plate or the like. By abutting, the height of the top of the head can be made constant.

  As shown in FIG. 6, on the inner side of the left and right side walls 32 of the slide lid 3, a protruding strip portion 35 that fits into the guide groove 24 of the holding portion 2 and is movable along the guide groove 24 is provided at the lower end thereof. Projected. The protruding portion 35 is formed to be inclined obliquely downward toward the pulling direction of the slide lid 3, and a locking protrusion 351 that protrudes higher than the other protruding portion 35 portion is formed at the rear end portion. Is formed. By locking the locking protrusion 351 in the locking recess 241 of the guide groove 24, the slide lid 3 can be fixedly attached to the holding portion 2 when not in use. Note that the engaging protrusions 351 and the engaging recess 241 have mutually engaging surfaces that are inclined in the pull-out direction. By applying a predetermined pulling force to the engaging protrusion 351, the engaging protrusion 351 is The inclined surface is used to move into the guide groove 24, whereby the engagement state between the two is released.

  Hereinafter, a series of pulling operations of the slide lid 3 will be described with reference to FIGS. FIG. 7A shows a state in which the signal cylinder ignition device 1 of the present invention is attached to the head of the signal cylinder 4 and the slide lid 3 is in a closed state. As shown in the figure, the pyrotechnic 41 is formed on the top of the signal cylinder 4 so as to protrude, and in the closed state, it is covered with a top plate 31. In this state, since the sliding paper 36 of the slide lid 3 is not in contact with the pyrotechnic 41, inadvertent ignition when not in use (during storage) can be prevented. Further, the locking projection 351 of the ridge 35 is locked to the locking recess 241 of the guide groove 24, and the slide lid 3 is locked and fixed to the holding portion 2. 3 malfunctions can be prevented.

  In the state of FIG. 7A, the user holds the main body portion of the signal tube 3 with one hand, bends the extraction portion 33 with the connection portion 34 with the other hand, and causes it in the extraction direction. And the extraction part 33 is pulled diagonally downward as it is. At this time, the pulling portion 33 is preferably pulled in the direction in which the guide groove 24 is inclined.

  Due to the locking state of the locking protrusion 351 and the locking recess 241, the pulling operation of the slide lid 3 does not start with a slight pulling force, but when the certain pulling force is exceeded, the engagement between the two is released and the pulling operation is performed. Operation starts. When the pulling-out operation starts, the ridge 35 moves in the guide groove 24, and the slide lid 3 is pulled out along the inclination of the guide groove 24. Therefore, as the pulling-out operation proceeds, it moves obliquely downward. Then, as shown in FIG. 7B, when the pulling-out operation proceeds to a certain degree, sliding with the sliding drug paper 36 and the pyrotechnic 41 starts. Thereafter, since the slide lid 3 moves along the inclination of the guide groove 24, as the pulling operation proceeds, the sliding medicinal paper 36 is further pressed against the pyrotechnic 41 and slides, and the ignition reliability is improved. Although the locking force between the locking protrusion 351 and the locking recess 241 can be set arbitrarily, the slide lid 3 can be removed by releasing the locking when a certain locking force is exceeded. Since the structure does not move unless a certain tensile force is applied, as a result, the safety when not in use is improved, and variations in the direction, force, speed, etc. of the pulling-out operation can be suppressed.

  When the pulling-out operation is continued from FIG. 7B, the slide lid 3 moves further obliquely downward along the inclination of the guide groove 24, and the sliding drug paper 36 slides on the ignition powder 41. At this time, if the top plate 31 has flexibility, the flexibility and the slit 311 can be combined to bend upward, and the top plate 31 can be bent as shown in FIG. The plate 31 is pressed against the explosive 41 and slides more reliably, absorbs the variation in the height of the explosive 41, and can ignite stably.

  When the pulling-out operation is further continued from FIG. 7C, the protruding strip portion 35 of the slide lid 3 is completely pulled out from the front end portion of the guide groove 24 as shown in FIG. The drawing work is completed.

  The holding part 2 and the slide lid 3 constituting the signal cylinder ignition device 1 of the present invention are each integrally formed by vacuum casting. Thus, by integrally molding, the number of parts can be reduced and manufacturing cost can be suppressed. In addition, preferable materials for each member include polyethylene, polypropylene, vinyl chloride resin, polystyrene, ABS resin, methacrylic resin, polyethylene tefretate, polyamide, polycarbonate, polyacetal, polybutylene terephthalate, modified polyphenylene ether, and the like. Preferably, it is a general-purpose resin having flexibility of polyethylene and polypropylene.

  The signal tube ignition device 1 of the present invention can be used for a flame tube generally used for automobiles or the like, but preferably, a paper tube is filled with a charge (granular flame retardant, solid flame retardant). And a flame tube in which a pyrotechnic is provided at the top of the cylinder.

DESCRIPTION OF SYMBOLS 1 ...... Signal cylinder ignition device 2 ...... Holding part 3 ...... Slide lid 4 ...... Signal cylinder 21 ...... Perimeter wall 22 ...... Notch part 23 ...... Flat part 24 ...... Guide groove 25 ...... Hollow part 31 ...... Top plate 32... Side wall 33... Pull-out portion 34... Connection portion 35 ... ... Ribbed portion 36 ... ... Sliding medicinal paper 41 ... …… Hole 351…… Locking projection

Claims (6)

  The holding portion includes a holding portion having a hollow portion into which the signal tube can be inserted, a top plate that covers the upper opening of the hollow portion, and a side wall that covers three side surfaces of the holding portion peripheral wall. Guide grooves are provided on the left and right side surfaces of the peripheral wall, and protrusions that are fitted into the guide grooves and are movable along the guide grooves are provided on the left and right side walls of the slide lid, respectively. The holding portion is formed so as to be removable in a lateral direction from an open portion that is not provided, and the sliding agent provided on the back side of the top plate slides on the ignition agent of the signal tube when the slide lid is pulled out. A signal tube ignition device characterized by being formed.   2. The signal cylinder ignition device according to claim 1, wherein both the guide groove and the ridge are inclined obliquely downward in the direction of pulling out the slide lid.   The signal cylinder ignition device according to claim 1, wherein the slide lid is provided with a pulling portion.   The signal cylinder ignition device according to any one of claims 1 to 3, wherein an upper end of the peripheral wall projecting upward is extended on the peripheral wall on the side surface of the holding portion.   The signal cylinder ignition device according to claim 4, wherein a slit into which the upper end of the peripheral wall can be inserted is formed in the top plate.   6. The signal cylinder according to any one of claims 1 to 5, wherein the signal cylinder is a flame cylinder in which a paper cylinder is filled with a fuel for a flame cylinder, and the top of the cylinder is provided with an ignition powder. Signal tube ignition device.

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