JP5223052B2 - Caulking gun - Google Patents

Description

  The present invention relates to a caulking gun that can be used when a sealing agent or a caulking agent is filled, and a cartridge thereof.

  Conventionally, a caulking gun used for filling a sealing agent or a caulking agent is a cylindrical cartridge containing a prevalent filler (for example, the length of the body portion excluding protrusions is 215 mm, the weight is 390 g, and the inner volume is 330 ml. .)) Did not have a function to prevent the drop-off of the popular type cartridge. Further, since the conventional caulking gun is designed on the assumption that a popular type cartridge is loaded, the size is uniform (see, for example, Patent Documents 1 and 2).

Japanese Utility Model Publication No. 46-031013 Japanese Utility Model Publication No. 58-000745

  When a conventional type caulking gun is loaded with a popular type cartridge, the total length of the cartridge is approximately 560 mm when one of the cartridges is in contact with the piston and the other is in close contact with the piston. The holder includes the holder front end and the holder rear end. The length was about 270 mm, the piston rod length was about 350 mm, the total weight was about 820 g, and the weight of the conventional caulking gun alone was about 430 g, which had the following problems. In the popular type cartridge loading, the front of the popular type cartridge is brought into close contact with the front end of the holder and the piston is brought into close contact with the rear end of the popular type cartridge, and the loading is completed. When the posture is unstable during the operation, the popular type cartridge may fall off, which is a burden on the operator.

  Moreover, since it is designed on the assumption that a cartridge of a popular type is loaded, the overall size is large and heavy. Therefore, there was a problem with handling in a narrow space. It was difficult to accurately apply to the filling position, and extrusion distribution was difficult. In addition, there is a disadvantage such as slippage if the other hand does not support the tip of the caulking gun. The lever operation for a long time requires a continuous force, and the workability is poor, such as loosening the hand. The present invention has been made to eliminate the above problems.

[Means for solving problems]
[0006]
The present invention is loaded with a cartridge containing the filler of the sealing agent or caulk to the holder, by operating the lever with the handle located on the rear side of the holder the rear end, the piston having a piston rod end , by pressing the cartridge rear end a caulking gun for extruding the filler from the tip nozzle, a spring provided in the piston rod which is located between the piston and the holder rear end portion, the force of the spring is applied force that presses the cartridge rear end acts on the piston, the holder is the length including the holder rear end part and the holder front end 60～180Mm, length of the piston rod in response to this 60～180Mm The minimum length is necessary to fulfill the function of the caulking gun. If you do not need capability is a caulking gun, characterized in that it is also possible to be used in a state in which from the beginning disconnect the springs, when loaded with a cartridge, the cartridge rear end to a piston force of the spring is applied The pushing force is applied, and one of the cartridges is in close contact with the front end of the holder and the other is in close contact with the piston, so that the loading is completed and the cartridge does not fall off. This is a caulking gun equipped with a cartridge dropping prevention function that reduces the burden on the operator by omitting the conventional operation of bringing the piston into close contact with the rear end of the cartridge.

  By shortening the longitudinal direction of the holder and further shortening the length of the piston rod correspondingly, the caulking gun is lighter and shorter than the conventional caulking gun.

In addition, the present invention can be freely attached and detached by removing the piston provided at the tip of the piston rod, and the spring can be used with the spring removed from the beginning when the drop prevention function is not required. A caulking gun with a spring that can be freely attached and detached .

  According to the caulking gun and the cartridge of the present invention, the above-described problems are solved, and the operation of bringing the piston into close contact with the rear end of the cartridge is eliminated by the function of preventing the cartridge from dropping off, thereby reducing the burden on the operator.

  In addition, according to the present invention, the length of the holder and the piston rod are shortened, and the popular type cartridge is improved to a size that can be loaded into a caulking gun. Extrusion and distribution can be performed without difficulty. In addition, the lever can be operated with less force than a conventional caulking gun, and handling in a narrow space is not a problem.

  Furthermore, the present invention exhibits the effect that the spring of the caulking gun is made detachable so that it can be used in a state where the spring is removed from the beginning when the fall prevention function is not required.

  It is a side schematic diagram of the caulking gun of the present invention.   1 is an external perspective view of a caulking gun according to the present invention.

  The caulking gun of the present invention will be specifically described with reference to the drawings. The caulking gun of the present invention can be used by improving a popular type cartridge or by newly manufacturing it. In the figure, reference numeral 1 denotes a cartridge containing a filler for a sealing agent or caulking agent and having a nozzle 2 at the tip thereof, 3 is a holder for loading the cartridge 1, a holder front end portion 4 is provided in front of the holder 3, and A holder rear end 5 is provided. A piston 9 provided at the front end of the piston rod 8 presses the cartridge rear end 11 and pushes out the filler from the nozzle 2 in conjunction with the retraction operation of the lever 7 provided in the handle 6.

  The spring 10 is fitted into a piston rod 8 positioned between the piston 9 and the rear end portion 5 of the holder, and when the cartridge 1 is loaded into the holder 3, the cartridge rear end 11 is pushed against the piston 9 to which the force of the spring 10 is applied. The force acts, and one of the cartridges 1 is in close contact with the holder front end 4 and the other is in close contact with the piston 9 so that the cartridge 1 does not fall off. The spring 10 can be a compression coil spring, a tension coil spring, a torsion coil spring, a leaf spring, or the like, or a special spring other than these (for example, a bamboo spring).

  Of these, the compression coil spring is most preferable, and the force by which the piston 9 pushes the cartridge 1 with respect to the weight of the cartridge 1, that is, the initial load of the compression coil spring equivalent to the cartridge 1 is easily exerted. It has been found that the mass of the caulking gun can be suppressed by the simple structure, and the increase in the weight of the entire caulking gun can be suppressed.

  The length including the holder front end portion 4 and the holder rear end portion 5 in the holder 3 is preferably reduced to about 80 to 160 mm, more preferably 100 to 140 mm, and further preferably 110 to 130 mm. Correspondingly, the length of the piston rod 8 is preferably shortened to about 155 to 235 mm, more preferably 175 to 215 mm, and further preferably 185 to 205 mm. It becomes the length of. As a result, the weight of the caulking gun can be reduced to about 310 to 350 g.

  The length including the holder front end 4 and the holder rear end 5 in the holder 3 is most preferably 120 mm. This is about 45% of the length of the conventional caulking gun holder including the holder front end and the holder rear end. The length of the piston rod 8 is most preferably 195 mm, which is the minimum length necessary to fulfill the function of a caulking gun. At this time, the weight of the caulking gun is about 340 g.

  In the cartridge 1, only the length of the popular type cartridge is improved, and the length of the body portion excluding the protrusion is set to about 55 to 125 mm, more preferably 75 to 115 mm, and further preferably 85 to 105 mm. . The size is such that the cartridge 1 can be loaded into the holder 3 without inconvenience and quickly. As a result, the weight can be greatly reduced to about 90 to 220 g. Further, the cartridge 1 can be newly manufactured to these dimensions.

  In the cartridge 1 improved only in length, the length of the body part excluding the protrusion is most preferably 95 mm. The length of the body portion excluding the protrusions of the popular type cartridge is about 215 mm, but the length is shortened to about 45%, and the weight is about 150 g.

  Conventionally, the weight of a popular type cartridge loaded on a caulking gun is about 820 g. However, when the cartridge 1 is loaded on the caulking gun of the present invention, the weight at the most preferable value is about 490 g. The most preferred values of these are conventional balances for handling and filling in tight spaces, filling to the right position, filling evenly distributed, filling with one hand, working for a long time, etc. It has been found that the working efficiency can be significantly improved compared to when a popular type cartridge is loaded on a caulking gun.

  The spring 10 can be attached and detached freely by removing the piston 9 from the piston rod 8 by attaching the piston 9 to the tip of the piston rod 8 by, for example, a nut structure, a screw structure or the like. Thereby, when the drop-off preventing function is unnecessary, a caulking gun that can be used with the spring removed from the beginning can be obtained.

  The spring 10 is provided with a male screw structure at the tip of the piston rod 8, and after fitting the piston 9 thereto, a nut is attached so that the spring 10 can be attached and detached freely. In this way, when the drop-off preventing effect is unnecessary, the spring 10 can be removed, and the spring 10 can be used with the spring 10 attached or without the spring 10 attached.

1 Cartridge 2 Nozzle 3 Holder 4 Holder Front End 5 Holder Rear End 6 Handle 7 Lever 8 Piston Rod 9 Piston 10 Spring 11 Cartridge Rear End

Claims (1)

A cartridge containing a sealing agent or caulking agent filler is loaded into the holder, and the lever provided on the handle located at the rear side of the rear end of the holder is operated. Is a caulking gun that pushes the filler from its tip nozzle, and a spring is provided on the piston rod located between the piston and the rear end of the holder, and the piston is subjected to the force of the spring. force for pressing the cartridge rear end-out work, the holder is 60~180mm length including the holder rear end part and the holder front end, the length of the piston rod in response to this 60~180mm the coking a minimum length in the required functions of the gun, by detachable the spring, must fall off preventing function If have, caulking gun, characterized in that it is also possible to be used in a state in which from the beginning remove the springs.

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