JP2013017533A - Cover for injector - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cover for an injector, which can be attached easily and securely to the injector without causing the waste of paper in manufacturing.SOLUTION: The cover for the injector includes: a pair of the side-face plates 20 and 30 for covering both sides of the head part of the injector 50; a connection plate 40 for mutually connecting them; a pair of tongue pieces 23 and 33 formed by providing notches to the side-face plates 20 and 30, and extending in the front/back directions; and the upper projection parts 24 and 34 and lower projection parts 25 and 35 respectively provided to the upper edges and lower ends of the leading end parts of the tongue pieces 23 and 33. The tongue pieces 23 and 33 are folded into the back sides of the side-face plates 20 and 30 respectively, so that their leading end parts are positioned between upper side lever 51 and lower side lever 52 of the injector 50, and that the upper projection parts 24 and 34 and the lower projection parts 25 and 35 are respectively engaged with the recessed parts in the undersurface of the upper side lever 51 and the upper surface of the lower side lever 52, thereby being engageable with the head part of the injector 50.

Description

  The present invention relates to a cover attached to a head portion of an injector having a pair of upper and lower operation levers such as a fire extinguisher.

  In general, a fire extinguisher is composed of a main body container for containing a fire extinguishing agent and a head part for injecting the medicine, and the head part includes a valve attached to an upper end opening of the main body container; , A medicine ejection hose connected to the valve, a pair of upper and lower operation levers for opening and closing the valve, and a safety stopper (safety pin) for preventing malfunction of the operation lever . Of the pair of operation levers, the upper lever is a movable lever that can be rotated by a support shaft provided in the head portion, and the lower lever is a fixed lever that is fixed to the head portion so as not to rotate. Then, when the user pulls out the safety stopper from the head and grips the two operation levers, the upper lever rotates so as to approach the lower lever, thereby opening the valve and opening the hose. The medicine is ejected from a nozzle provided at the tip.

  Usually, such a fire extinguisher is shipped and transported in a state where one or a plurality of such fire extinguishers are housed in a packing box such as a cardboard box so as not to be damaged during distribution (see, for example, Patent Document 1). In addition, the head is made of corrugated paper so that the operator does not accidentally pull out the safety stopper or grip the operation lever when storing it in the packing box or taking it out of the packing box. A cover may be attached.

  Conventionally, such a cover has a belt-like shape as shown in FIG. 4 and is attached so as to be bent and surround the head portion of the fire extinguisher 70 as shown in FIG. At this time, both ends of the cover 60 are fixed to each other by engaging a locking piece 61 provided on one end side of the cover 60 with a locking hole 62 provided on the other end side.

JP 2001-238974 A ([0002])

  However, since the conventional cover has a simple cylindrical shape as shown in FIG. 5 when attached to the head portion of the fire extinguisher, there is a problem that it is easily removed by pulling upward. It was. If the cover is attached to the head portion using an adhesive tape or the like, the cover can be prevented from being accidentally dropped, but there is a problem that it is difficult to remove the cover. Further, as shown in FIG. 4, since the locking piece 61 protrudes from one side of the cover 60, there is a problem in that paper removal is poor and paper is wasted during manufacture.

  The present invention has been made in view of such problems, and an object of the present invention is a cover that is attached to the head portion of an injector such as a fire extinguisher, and is easily attached and detached. It is an object of the present invention to provide a cover that does not unintentionally come off during the distribution process and the like, and does not waste paper during manufacture.

The cover for an injector according to the present invention, which has been made to solve the above problems,
A main body container, a head portion provided on the upper portion of the main body container for ejecting the contents of the main body container, and a pair of upper and lower operation levers provided on the head portion. A cover to be attached,
a) a pair of side plates covering both sides of the head portion;
b) a connecting portion for connecting the pair of side plates to each other;
c) a pair of tongue pieces extending in the front-rear direction formed by providing cuts in each of the pair of side plates;
d) an upper protrusion provided on the upper edge of the tip of each tongue piece;
e) a downward projecting portion provided at the lower edge of the tip of each tongue piece;
Each tongue piece is folded into a space sandwiched between the pair of side plates, its tip is positioned between the upper and lower operating levers of the injector, and the upper projecting portion is Engage with the concave portion provided on the lower surface of the upper operation lever, and engage with the concave portion provided on the upper surface of the lower operation lever to engage the head portion of the sprayer. It is characterized by being.

  As described above, the injector cover according to the present invention has the side plate disposed on both sides of the head portion, and the upper protruding piece and the lower protruding piece provided at the tip end portion of the tongue piece are engaged with the operation lever. By combining, it can be easily and reliably attached to the injector. Moreover, since an adhesive tape etc. are not used for attachment, the removal from an injector is also easy. Furthermore, since the tongue piece is formed by providing a notch in the side plate, there is no need to form a locking piece by projecting the outer periphery of the cover as in the prior art, thereby suppressing waste of paper during manufacture. Can do.

The expanded view of the cover for fire extinguishers which concerns on one Example of this invention. The perspective view explaining the attachment method to the fire extinguisher of the said fire extinguisher cover. It is a figure which shows the state which attached the said cover for fire extinguishers to the fire extinguisher, Comprising: (a) is a top view, (b) is a side view. Fig. 3 is a development view of a conventional fire extinguisher cover. The perspective view which shows the state which attached the cover for conventional fire extinguishers to the fire extinguisher.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. FIG. 1 is a developed view of a fire extinguisher cover according to an embodiment of the present invention, and FIG. 2 is a perspective view for explaining a method of attaching the cover. FIG. 3 is a view showing a state where the cover is attached to a fire extinguisher, wherein (a) is a top view and (b) is a side view. In FIG. 3B, for convenience of explanation, a part of the operation lever is shown through.

  The fire extinguisher cover 10 according to the present embodiment is attached to the head portion of the fire extinguisher 50. The first side plate 20 and the second side plate 30 covering the left and right side surfaces of the head portion, and the front surface of the head portion. It consists of one connecting plate 40 (corresponding to the connecting portion in the present invention) to be covered. In the following description, with the fire extinguisher cover 10 of this embodiment attached to the fire extinguisher 50 as a reference, the pair of upper and lower operation levers 51 and 52 provided on the fire extinguisher 50 has a narrower distance (ie, Front and rear, top and bottom, left and right are defined with the left side in FIG. 3 as the front and the wide side as the rear.

  The fire extinguisher cover according to the present embodiment is formed by bending a single blank sheet as shown in FIG. Hereinafter, in this blank sheet, the surface facing the head portion of the fire extinguisher 50 when attached to the fire extinguisher 50 is referred to as a back surface, and the opposite surface is referred to as a main surface. The blank sheet is made of a corrugated cardboard punched into a rectangle, and is divided into three in the longitudinal direction by two fold lines 11 and 12 parallel to each other. Each of the three divided sections corresponds to the first side plate 20, the second side plate 30, and the connecting plate 40.

  The first side plate 20 and the second side plate 30 have tongue pieces 23 surrounded by fold lines 21 and 31 parallel to the fold lines 11 and 12 and substantially U-shaped cut lines 22 and 32, 33 are formed. These tongue pieces 23, 33 extend in the front-rear direction (left-right direction in FIG. 1) with their tips directed toward the connecting plate 40, and are folded on the back side of the blank sheet by fold lines 21, 31. Can be done.

  Further, upper projecting portions 24 and 34 projecting upward are formed on the upper edges of the tip portions of the tongue pieces 23 and 33, respectively, and downwards on the lower edges of the tip portions of the tongue pieces 23 and 33. The lower projecting portions 25 and 35 projecting from each other are formed. These upper protrusions 24 and 34 are formed by causing the cut lines 22 and 32 to bulge upward at the tip portions of the tongue pieces 23 and 33, and the lower protrusions 25 and 35 are formed by cutting the cut lines 22 and 32 into the cut lines 22 and 32, respectively. It is formed by bulging downward at the tips of the tongue pieces 23 and 33.

  Generally, of the pair of operation levers provided in the fire extinguisher 50, the upper lever 51 is bent at its left and right side edges, and the lower lever 52 is bent at its left and right side edges. It has been. That is, the lower surface of the upper lever 51 and the upper surface of the lower lever 52 each have a groove-like recess extending in the length direction of each lever. The upper protrusions 24 and 34 and the lower protrusions 25 and 35 are engaged with these recesses.

  Also, finger hooks 26 and 36 each having an arcuate cutout are provided on the lower sides of the first side plate 20 and the second side plate 30. As shown in FIG. 3B, the finger hooks 26 and 36 are located below the lower lever 52 when the fire extinguisher cover 10 of this embodiment is attached to the head of the fire extinguisher 50. The lower lever 52 can be put on the lower surface of the lower lever 52 through the finger hooks 26 and 36. Thereby, when the fire extinguisher 50 is distributed, the operator can support the lower lever 52 from below with the fire extinguisher cover 10 attached to the fire extinguisher 50. As described above, the lower lever 52 of the fire extinguisher 50 is a fixed lever (that is, a lever that does not rotate), and the fire extinguisher 50 can be placed even if the lower lever 52 is touched with the safety stopper 55 removed. There is no risk of malfunction.

  Further, a gauge insertion portion 27 made of a rectangular cutout is provided on the lower side of the first side plate 20. The gauge insertion portion 27 is for exposing the pressure gauge 53 provided in the fire extinguisher to the outside of the fire extinguisher cover 10.

  The connecting plate 40 is formed with a hose hole 41 for passing a fire extinguishing agent injection hose 54 extending from the head portion of the fire extinguisher 50 and a cut line 42 extending from the lower side of the connecting plate 40 to the hose hole 41. ing.

  The folding lines 11, 12, 21, 31 are all mountain-folded when the fire extinguisher cover 10 is assembled. Here, the mountain fold is based on the state viewed from the main surface side of the blank sheet. These folding lines are pre-pressed and / or perforated so that they can be easily folded. In addition, the tongue pieces 23 and 33 are respectively shown in FIG. 1 so that the tips of the tongue pieces 23 and 33 can be easily inserted between the upper lever 51 and the lower lever 52 of the fire extinguisher 50 when attached to the fire extinguisher 50. It is desirable to provide folding lines 28, 29, 38, 39 as shown. These folding lines 28, 29, 38, 39 are folded at the time of assembly.

  When the fire extinguisher cover 10 according to the present embodiment is attached to the head portion of the fire extinguisher 50, first, the support shaft of the pressure gauge 53 is inserted into the gauge insertion portion 27 provided in the first side face plate 20, and the first The side plate 20 is positioned on the left side of the head portion. Subsequently, the blank sheet is bent at a right angle at the fold line 11, the connecting plate 40 is disposed in front of the head portion, and the hose 54 is inserted into the hose hole 41 through the cut line 42 provided on the connecting plate 40. Next, the tongue piece 23 provided on the first side plate 20 is folded inward, and the upper projection 24 and the lower projection 25 are respectively connected to the lower surface of the upper lever 51 with the tip of the tongue piece 23 facing forward. And the recess on the upper surface of the lower lever 52.

  Subsequently, the blank sheet is bent at a right angle along the fold line 12 to position the second side plate 30 on the right side of the head portion. Then, the tongue piece 33 provided on the second side plate 30 is folded inward, and the upper protrusion 34 and the lower protrusion 35 are placed on the lower surface of the upper lever 51 with the tip of the tongue 33 facing forward. The concave portion and the concave portion on the upper surface of the lower lever 52 are engaged.

  Thus, the fire extinguisher cover 10 according to the present embodiment is configured to extinguish the upper protruding portions 24 and 34 and the lower protruding portions 25 and 35 provided on the tongue pieces 23 and 33 by bending the tongue pieces 23 and 33 inward. It can be fixed to the fire extinguisher 50 by engaging the upper lever 51 and the lower lever 52 of the appliance 50. Therefore, it is not necessary to use an adhesive or the like for fixing to the fire extinguisher, and it can be easily attached and detached. When the fire extinguisher cover 10 according to the present embodiment is attached to the fire extinguisher 50, the tongue pieces 23 and 33 restrict the movement of the cover 10 in the vertical direction and the front, and the connecting plate 40 further restricts the cover. The rearward movement of 10 is restricted. Therefore, even if the fire extinguisher cover 10 is pulled, the fire extinguisher cover 10 is not removed carelessly, and erroneous operation in the distribution stage of the fire extinguisher 50 can be reliably prevented.

  Further, since the tongue pieces 23 and 33 can be fixed to the operation levers 51 and 52 of the fire extinguisher 50 as described above, the shape surrounding the four sides of the head portion as in the conventional fire extinguisher cover described above is obtained. Therefore, the amount of paper used can be reduced. Furthermore, since the tongue pieces 23 and 33 can be formed by providing cut lines in the first side plate 20 and the second side plate 30, both ends of the cover are mutually connected like the conventional fire extinguisher cover. Compared with the case where the locking portion for fixing protrudes from one side of the cover, paper removal is better, and waste of paper can be suppressed. Furthermore, according to the fire extinguisher cover 10 according to the present embodiment, when the tongue pieces 23 and 33 are folded inward, the opening is formed in the central portion of the first side plate 20 and the second side plate 30. Thus, the user can place a hand on the lower part of the upper lever 51 of the fire extinguisher 50. For this reason, the fire extinguisher 50 can be stored in a packing box such as a cardboard box with the cover attached to the fire extinguisher 50, and handling when the fire extinguisher 50 is taken out from the packing box can be easily obtained. It is done. Although the upper lever 51 of the fire extinguisher 50 is a movable lever, as described above, when the lever 51 is rotated so as to approach the lower lever 52 (that is, when the upper lever 51 is pushed down). The medicine is jetted from the fire extinguisher 50. Therefore, even if the user supports the upper lever 51 from below with the safety plug 55 removed, there is no possibility that the fire extinguisher 50 malfunctions.

  As mentioned above, although the form for implementing this invention was demonstrated using the Example, this invention is not limited to the said Example, A various change is accept | permitted in the range of the meaning of this invention. Is.

  For example, the material forming the injector cover according to the present invention may be a sheet-like material having elasticity, and in addition to the above-mentioned corrugated cardboard, for example, cardboard, thick plastic sheet, or plastic corrugated cardboard is used. You can also.

  Moreover, in the said Example, although the connection part in this invention was used as the flat member (namely, connection board 40), it is not restricted to this, For example, a part or whole of a connection part can also be made into a curved shape.

  Furthermore, although the fire extinguisher cover has been described above as an example, the injector cover according to the present invention has a pair of upper and lower operation levers, and a recess is formed on the lower surface of the upper lever and the upper surface of the lower lever. Any injector other than a fire extinguisher can be used as long as it has an injector.

DESCRIPTION OF SYMBOLS 10, 60 ... Fire extinguisher cover 20 ... 1st side plate 30 ... 2nd side plate 23, 33 ... Tongue piece 24, 34 ... Upper protrusion part 25, 35 ... Lower protrusion part 26, 36 ... Handle part 27 ... Gauge insertion part 40 ... Connecting plate 41 ... Hose hole 50, 70 ... Fire extinguisher 51 ... Upper lever 52 ... Lower lever 53 ... Pressure gauge 54 ... Hose

Claims (2)

A main body container, a head portion provided on the upper portion of the main body container for ejecting the contents of the main body container, and a pair of upper and lower operation levers provided on the head portion. A cover to be attached,
a) a pair of side plates covering both sides of the head portion;
b) a connecting portion for connecting the pair of side plates to each other;
c) a pair of tongue pieces extending in the front-rear direction formed by providing cuts in each of the pair of side plates;
d) an upper protrusion provided on the upper edge of the tip of each tongue piece;
e) a downward projecting portion provided at the lower edge of the tip of each tongue piece;
Each tongue piece is folded into a space sandwiched between the pair of side plates, its tip is positioned between the upper and lower operating levers of the injector, and the upper projecting portion is Engage with the concave portion provided on the lower surface of the upper operation lever, and engage with the concave portion provided on the upper surface of the lower operation lever to engage the head portion of the sprayer. A cover for an injector characterized by being made.   Each of the side plates has a notch in a lower side thereof, and is configured so that a hand can be put on the lower surface of the lower operation lever through the notch. The cover for an injector according to 1.

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