JP2001241891A - Water pistol fixable with bottle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems of a conventional water pistol that it requires a process for manufacturing a pressure tank and that a commercially available PET bottle can not be fixed. SOLUTION: In the water pistol, a water supply channel 6 is made in a body 1 comprising a tubular body 2 and a grip part 3 having open lower end provided with and internal thread 30 to be screwed with the external thread 50 of a bottle 5. An air supply cylinder pump 4 having an air supply opening 43 opening to the lower end of the grip part 3 is disposed in the grip part 3. The water supply channel 6 has one end opening into the bottle 5 fixed to the grip part 3 and the other end coupled with a water outlet 7. When a trigger part 9 is triggered, the water supply channel 6 releases the urging force of a water supply channel pressing part 8 for closing the water supply channel 6 thus opening the water supply channel 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water gun capable of being interchangeably mounted with a bottle, and more particularly with a plurality of types of plastic bottles.

[0002]

2. Description of the Related Art In general, a water gun is a play tool that uses water pressure to fly water from a small hole. As a basic water gun, there is known a water gun in which a hole is formed at one end of a cylinder or a cylinder so as to serve also as an inlet and an outlet, and a slidable piston is provided in the cylinder. In this method, a negative pressure is applied to the inside of the cylinder by pulling a piston to suck water, and a pressure is applied to the water in the cylinder by pressing the piston to blow off the water.

[0003] Pistol-shaped water guns are also known.
This is to connect the trigger of the pistol with the piston in the pistol, pull the trigger to press the water in the cylinder with the piston to fly the water, release the trigger, the piston returns by the force of the spring, and the cylinder Was set to negative pressure and water was sucked.

[0004] Further, there is also known one having a pressure tank. The pressure tank has a cylinder pump for supplying pressure to the pressure tank. The pressure tank has a communication pipe communicating from the cylinder pump and a branch communication pipe, and the other end is provided as an open end. An open / close valve is provided in the communication pipe, and the open / close valve is either closed by the urging force of a spring or opened by opening / closing a contact portion of a trigger portion directly.

The inventor of the present invention disclosed in Japanese Patent Application No. 6-75314 (Prior Art 1) as a water gun having a pressure tank, "a cylinder pump having an air supply port integrally molded, and an air supply port of the cylinder pump. An intermediate passage connected to the intermediate passage, a branch portion integrally formed with a connection portion connected to the intermediate passage and the water passage, a pressure tank connected to the branch portion, and a water passage branched from the branch portion and communicating with the water outlet. A water gun, comprising a trigger for rotating a pressing portion by a fulcrum to open a water passage, and a spring for pressing the pressing portion of the trigger portion.

[0006] Further, the present inventor has disclosed in Japanese Patent Application No. 7-86354.
No. (Prior Art 2), "a cylinder pump having an air supply port formed integrally, an intermediate passage connected to the air supply port of the cylinder pump, and a connection portion connected to the intermediate passage and the water passage are integrally formed. The branch part to be molded, the pressure tank connected to the branch part, a flexible water passage branching from the branch part and communicating with the water outlet, and a pressing body pressing the water passage by the urging force of the spring, A water gun having a trigger portion having an abutment portion for abutting against the pressing body and rotating the pressing body to open the water passage.

[0007]

In a conventional water gun having a pressure tank, since the pressure tank is manufactured as a part of the water gun even if the pressure tank is detachable, an operation step of manufacturing the pressure tank is required. there were.

[0008] Therefore, a water gun having the same shape in terms of design has been manufactured and used by the user as it is.

[0009]

[Means for solving the problem] In order to solve this problem,
The water channel is enclosed in the main body consisting of the cylinder and the grip, and the grip has an opening at the lower end and a male screw and a female screw that can be attached at the lower end, and an opening at the lower end of the grip inside the grip. An air-supply cylinder pump having an air-supply port is provided, and a water-supply path is provided by opening one end in a bottle attached to the grip portion and connecting the other end to a water-out port. The present invention proposes a water gun capable of mounting a bottle, characterized by releasing the urging force of a water channel pressing portion closing the water channel to open the water channel.

In addition, a water supply passage is enclosed in a main body in which a cylindrical body and a grip portion are integrally formed, and the grip portion has a lower end opened, and the lower end is interchangeably provided with a plurality of types of male screws of plastic bottles. A female screw which can be attached is provided, and an air supply cylinder pump having an air supply port having a check valve opened at the lower end of the grip portion is provided inside the grip portion, and one end is opened in a plastic bottle attached to the grip portion. The water supply channel that connects the other end to the water outlet can be changed according to the length of the plastic bottle, the grip water supply channel, the cylindrical water supply channel made of resilient material, and the length inside the plastic bottle The water passage is connected to the water passage inside the bottle, and the water passage is opened by releasing the urging force of the water passage pressing portion that closes the water passage by pulling the trigger portion. Providing a water gun that can attach a bottle To.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to FIG. 1 which is a front sectional view of a water gun showing an embodiment, and FIG. 2 which is a front view of a water gun mounted with a bottle (pet bottle).

The main body 1 of the water gun has a tubular body 2 having a water outlet 7 at the distal end side, and a grip portion 3 provided substantially at right angles to the tubular body 2 at the rear side of the tubular body 2. Tube 2 and grip 3
Is formed integrally by a vertical split body, and the two vertical split bodies are connected by a plurality of screws to form a hollow main body 1.

An air supply cylinder pump 4 is provided in a grip portion 3 of the main body 1. The grip portion 3 has an open lower end and a female screw 30 which has a screw diameter corresponding to the male screw 50 of the bottle 5 and can be attached at the lower end. The bottle 5 that can be attached to the female screw 30 of the grip portion 3 is a generally commercially available PET bottle (a transparent or translucent bottle formed of a polyethylene terephthalate resin material), and the size of the bottle volume Regardless of this, the screw diameters of the male screw 50 are almost unified, and most are the same. In another embodiment, the bottle 5 is not a plastic bottle, but a male screw 5
It is sufficient that the screw diameters of 0 are equal. An annular packing 3 made of an elastic material such as rubber or soft synthetic resin is provided at the lower end of the grip portion 3.
1 is provided and brought into close contact with the end face of the mouth of the attached bottle 5.
The bottle 5 acts as a pressure tank when mounted.

The air supply cylinder pump 4 provided inside the grip portion 3 has a cylinder lot 40 that moves inside the cylinder 43, and the cylinder rod 40 has a pump handle 41 at the upper end and a cylinder rod at the lower end. Head 42
Is provided. The downstream end of the cylinder 43 of the air supply cylinder pump 4 is provided with an air supply port 44 opened at the lower end of the grip 3.
Is provided. The air supply port 44 has a check valve 45 formed of a spring body to prevent the air from flowing back to the cylinder 43.

In the vicinity of the lower end where the grip portion 3 is opened, an upstream end of the water supply channel 6 is opened and a connection portion 62 is provided. Waterway 6
The grip portion 3 comprises a grip portion water supply channel 60 formed of a rigid thin tube made of a hard synthetic resin material in parallel with the cylinder 43 of the air supply cylinder pump 4 in the grip portion 3. Grip section water channel 60
Is connected to the upstream end of a cylindrical water supply channel 61 which is a thin tube provided in the cylindrical body 2 at the downstream end and made of a flexible material having a resilient soft synthetic resin head. The cylindrical water supply channel 61 is connected to the water outlet 7 at the downstream end.

A water supply channel pressing portion 8 composed of a leaf spring 80 is provided in the middle of the cylindrical water supply channel 61, and the water supply channel 61 is normally pressed by a sharp pressing portion 81 provided at one end of the plate spring 80. 61 is closed. The end of the leaf spring 80 where the pressing portion 81 is located is in contact with a part of the trigger 9, and when the trigger 9 is pulled, the end of the leaf spring 80 is pressed in a direction opposite to the spring urging force, and the pressing portion 81 is pressed. The water channel 6 is opened apart from the pressing of the cylindrical water channel 61.

The connecting portion 62 at the upstream end of the water passage 6 is detachably connected to the water passage 63 in the bottle. The water passage 63 in the bottle is a thin tube made of a resilient and flexible material. The lower end on the upstream side of the in-bottle water supply channel 63 has a length that reaches the bottom of the plastic bottle 5 attached to the grip portion 3. If the length from the mouth to the bottom of the PET bottle 5 attached to the lower end of the grip portion 3 is too long to reach the upstream end of the water passage 63 in the bottle, the upstream end of the water passage 63 in the bottle Is provided with a second connection portion 64, and a similar water supply passage 63 in the bottle is provided.
, The length of the water passage 63 in the bottle is changed to be longer, and the upstream end of the water passage 63 in the bottle is located at the bottom of the PET bottle 5 to be mounted.

Next, the operation of the embodiment of the present invention will be described.

First, an appropriate amount of liquid, such as water, is put into a commercially available empty plastic bottle 5 from which the lid is removed using the beverage inside. The height (length) of the PET bottle 5 to be mounted next
Is connected to the connection part 62 provided at the upstream end of the grip part water supply path 60. When the plastic bottle 5 to be mounted is large, a second connection portion 64 is further provided in the water supply passage 63 in the bottle so that the upstream end of the water supply passage 63 in the bottle reaches the bottom of the plastic bottle 5.

Next, the male screw 50 of the plastic bottle 5 is attached to the female screw of the grip portion 3 while the water supply passage 63 in the bottle is inserted into the plastic bottle 5 from the mouth. At this time, since the screw diameter of the male screw of the commercially available PET bottle 5 is almost the same diameter that does not differ depending on the height and size of the PET bottle,
It is possible to attach various types of plastic bottles 5 in close contact with the grip portion 3. The attached PET bottle 5,
Since the end face of the mouth of the PET bottle 5 is attached in close contact with the packing 31, it is possible to perform the function of the pressure tank without leaking the pressure air.

Next, the pump handle 41 of the air supply cylinder pump 4 is moved up and down, and the cylinder head 42 is slid in the cylinder 44 by a cylinder action.
Pressure air is sent from the air supply port 43 into the attached PET bottle 5. At this time, a check valve 45 made of a spring body is provided at the air supply port 43, thereby preventing the air from flowing backward.

By the air sent into the PET bottle 5,
Pressure is applied to the water in the PET bottle 5, and the water rises into the cylindrical water supply channel 61 via the bottle water supply channel 63 and the grip portion water supply channel 60. At this time, usually, the cylindrical water supply channel 61 is
The cylindrical water passage 61 is pressed by the pressing portion 81 and closed by the urging force of the leaf spring 80 of the water passage pressing portion 8.

Here, when water is to be discharged as a water gun, when the trigger portion 9 is pulled in the direction of the grip portion 3, the trigger portion 9 turns, and the portion in contact with the leaf spring 80 is a leaf spring. 80 is pressed against the urging force, and the pressing portion 81 is separated from the pressing of the cylindrical water supply channel 61. As a result, the cylindrical water passage 61 is opened, and the water in the plastic bottle 5 is discharged from the water outlet 7 at the downstream end through the opened water passage 6.

When the trigger portion 9 is released, the pressing portion 81 automatically presses the cylindrical water passage 61 and closes the water passage 6 by the urging force of the leaf spring 80, so that the water discharge stops. This trigger 9
You can play as a water gun by pulling action.

The plastic bottle 5 mounted on the lower end of the grip portion 3 and acting as a pressure tank can be used in a variety of types, so that it is possible to satisfy the children's playing spirit.

[0026]

According to the present invention, it is not necessary to manufacture a conventional pressure tank, and the number of manufacturing steps can be reduced by one.

Further, since a variety of commercially available bottles (pet bottles) can be used as the pressure tank, it can be easily handled by children and the bottle can be changed. Further, since many types of bottles can be mounted, the mounted bottles can be easily exchanged, various combinations can be made in terms of design, and the playing spirit of users such as children can be satisfied.

[Brief description of the drawings]

FIG. 1 is a sectional front view of a water gun showing an embodiment of the present invention.

FIG. 2 is a front view showing a state in which the bottle is mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Cylindrical body 3 Handle part 30 Female screw of handle part 31 Packing 4 Air supply cylinder pump 40 Cylinder rod 41 Pump handle 42 Cylinder head 43 Opening 44 Cylinder 45 Check valve 5 Bottle (PET bottle) 50 Male screw of bottle Reference Signs List 6 water supply path 60 handle water supply path 61 cylindrical water supply path 62 connection section 63 water supply path in bottle 64 second connection section 7 water outlet 8 water supply path pressing section 80 leaf spring 81 pressing section 9 trigger section

Claims (2)

[Claims] 1. A water supply passage is enclosed in a main body comprising a cylindrical body and a grip portion. The grip portion has an opening at a lower end, and a male screw of a bottle and a female screw which can be attached at the lower end portion. An air supply cylinder pump having an air supply port opened at the lower end of the grip portion is provided, a water supply channel is provided that opens one end in the bottle attached to the grip portion and connects the other end to the water outlet, and the water supply channel has a trigger portion. A water gun capable of mounting a bottle, wherein the water channel is opened by releasing the urging force of a water channel pressing portion that closes the water channel by pulling the bottle. 2. A water supply passage is enclosed in a main body in which a cylindrical body and a grip portion are integrally formed. The grip portion has a lower end opened, and the lower end is interchangeably provided with male screws of a plurality of types of plastic bottles. A female screw that can be attached is provided, and an air supply cylinder pump having an air supply port having a check valve opened at the lower end of the grip portion is provided inside the grip portion, and one end is opened in a plastic bottle attached to the grip portion. The water channel that connects the other end to the water outlet can be changed according to the length of the plastic bottle, the grip channel water channel, the cylindrical water channel made of resilient material, and the length inside the plastic bottle A water passage in the bottle, and the water passage is opened by releasing a biasing force of a water passage pressing portion that closes the water passage by pulling a trigger portion. A water gun that can be fitted with a bottle.