JPS5937472Y2 - Tube extrusion gun - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tube extrusion gun, and more particularly to a tube extrusion gun that is most suitable for use with tubes containing architectural caulking material.

Caulking materials used for construction have high viscosity.
Because it is relatively hard, filling tubes with this caulking material and squeezing it out by hand at construction sites is not an easy task.

Therefore, in the past, the caulking material was filled in a cylindrical hard container, the bottom of which was used as a piston, and the tip of the container was provided with a nozzle, and the piston was pressed using air pressure or mechanical means to push the caulking material out of the nozzle. I have to.

However, if the structure is such that caulking material is filled in a special container as described above, not only will the container itself be expensive, but the equipment for extruding the caulking material from the container will be complicated and expensive, making it bulky and heavy. It has the disadvantage that it is bulky and difficult to handle at the work site.

In view of this, the present invention is designed to reliably and easily squeeze out the contents of the tube, even if the tube is filled with a material that is difficult to squeeze out, such as caulking; it can be applied to the desired location. The purpose of this invention is to provide a gun for extruding tubes.

Hereinafter, the present invention will be described with reference to embodiments shown in the drawings.

As shown in FIG. 1, the tube extrusion gun 1 according to the present invention includes a feeding rod 3 that is horizontally inserted and supported by a fixed handle 2, and a movable handle 5 that is pivotally supported by the fixed handle 2 by a shaft 4. a feeding mechanism 6 that advances the feeding rod 3 by a predetermined pitch by a gripping operation;
It consists of a tube squeezing part 7 provided at the front end of the tube, and a tube rear end clamping part 8 attached to the fixed handle 2, and the feeding rod 3 is shown in FIG. It is formed by a square shaft as shown in the figure.

Further, the rear end of the feeding rod 3 is folded back into a U-shape to prevent it from being pulled out and to allow it to be hung at an appropriate location.

The feeding mechanism 6 itself belongs to the known technology, but to briefly explain its structure, the feeding rod 3 is attached between the front wall 9 and the rear wall 10 of the upper part of the fixed handle 2, as shown in FIG. A rectangular hole 12 of a feeding plate 11 as shown is fitted, and a return coil spring 13 is fitted between this feeding plate 11 and the front wall 9.

On the back side of the lower end 11a of this feeding plate 11,
A pin 14 at the upper end of the movable handle 5 is in contact with the movable handle 5, and when the movable handle 5 is rotated counterclockwise about the shaft 4 in FIG. It looks like this.

Further, a square hole 16 of a stop plate 15 as shown in the front view in FIG. This stop plate 15 and the rear wall 1 have their upper ends swingably supported by the fixed handle 2 via a support 17.
A coil spring 18 is interposed between the stop plate 15 and the stop plate 15 so that the stop plate 15 is normally kept in an inclined state as shown in the first figure.

Therefore, when the movable handle 5 is grasped close to the fixed handle 2 side, the lower end 11a of the feeding plate 11 is pushed forward by the upper end of the movable handle 5, so that the hole 12 of the feeding plate 11 and the feeding rod 3 are not twisted. The frictional force generated causes the feeding rod 3 to move forward, and the stop plate 15 is pulled in the direction of the vertical posture, so that it does not interfere with the advancement of the feeding rod 3.

When the grip on the movable handle 5 is released, the feeding plate 11 is returned by the restoring force of the coil spring 13, but at this time, the feeding rod 3 moves the stop plate 15 in the direction of increasing inclination, so that the stop plate 15 becomes distorted with the hole 16. The frictional force prevents it from returning.

Next, the configuration of the tube squeezing part 7 and the tube rear end clamping part 8, which are the main parts of the tube squeezing gun 1 according to the present invention, will be explained.

The tube squeezing part 7 is attached to a nut 19 at the front end of the feeding rod 3.
It consists of a frame 20 fixed by a frame 20, upper and lower squeezing members 21, 22 provided inside this frame 20, and screws 23 as adjustment members.

In the illustrated embodiment, the ironing members 21 and 22 are formed of circular arc plates formed by bending a plate material to have an arc length corresponding to a circle, as shown in the cross section in FIG. are arranged so that they face each other and expand in a trumpet shape toward the front.

In the illustrated embodiment, the lower straining member 22 is fixed to the frame 20, and the upper straining member 21 has its upper end pivoted to the frame 20 by a shaft 24, and its lower end is movable in the vertical direction. , the gap between the rear ends of the upper and lower squeezing members 21, 22 can be arbitrarily selected.

The adjusting screw 23 is screwed into the upper surface of the frame 20, and the lower end of the adjusting screw 23 can freely come into contact with the upper surface of the rear end of the upper ironing member 21.

The frame body 20 has a window hole 2 through which the rear end of the tube 25 is inserted upward from the rear end position of the lower squeezing member 22.
6 is formed.

Next, the tube rear end clamping part 8 has a lower clamping part n8 fixed to the inner bottom surface of a support frame part 27 which has a U-shaped side surface and is open at the front, which is provided integrally with the upper part of the fixed handle 2. , an upper clamping claw 30 is attached to the lower end of the fixing screw 29 screwed into the upper side of the support frame 27;
Loosen the fixing screw 29, pull up the upper clamping claw 30, and tighten the flat part 2 at the rear end of the tube 25.
5a between the upper and lower clamping claws 28° and 30, and then tightening the fixing screw 29, so that the upper clamping claw 30 and the lower clamping claw 28 can firmly clamp and fix the rear end of the tube 25. It is something that

FIG. 8 shows another modification of the tube rear end clamping part 8, in which a lower clamping claw 28 is formed by the upper edge of the support frame part 27, and a base part is pivoted at one end of the support frame part 27. and a hook-shaped fixture 29a as a fixing means that is pivotally attached to the other end of the support frame portion 27 and engages and fixes the free end of the upper clamping claw 30. ing.

The upper clamping claw 30 is composed of a member having a downward U-shaped cross section with a groove 30a on the lower surface in the longitudinal direction.
The tube 25 can be fitted into the lower clamping claw formed at the upper edge of the support frame 27, and the rear end of the tube 25 can be inserted into it as shown in FIG. 9 for more secure clamping. be.

In the figure, 31 is a stopper that defines the return position of the movable handle 5, 32 is the mouth of the tube 25, and 33 is the contents (caulking).

Next, the operation of the above embodiment will be explained.

First, before use, first set the adjustment screw 23 and the fixing screw 2.
Loosen 9 and press it, then remove the ironing member 2 of the ironing part 7.
During 1.22, insert the rear end of the tube 25 from the front, and insert the crimp part 25a at the rear end of the tube 25 between the upper and lower clamping claws 28 and 30 of the tube rear end clamping part 8.

After that, when the fixing screw 29 is tightened, the upper clamping claw 30
is in contact with the rear end of the tube 25 and pressed against the lower clamping claw 28, and is firmly clamped by both clamping claws 28, 30,
When the adjustment screw 23 is tightened, the rear end of the upper squeezing member 21 is pushed down, and the rear end of the tube 25 interposed between it and the lower squeezing member 22 is pressurized.

After this, when the fixed handle 2 and the movable handle 5 are grasped and squeezed, the movable handle 5 rotates counterclockwise in FIG.
4 presses the lower end 11a of the feeding plate 11, so that the feeding plate 11 is inclined with respect to the feeding rod 3, and a distortion occurs between the hole 12 and the feeding rod 3, and the feeding plate 11 moves forward together with the feeding rod 3. .

This forward movement causes the entire squeezing section 7 to move forward, so that the tube 25 is squeezed by the upper and lower squeezing members 21 and 22.
The caulking material 33 inside is squeezed out from the mouth part 32 3
When the grip on the movable handle 5 is released, the feeding plate 11 is returned by the coil spring 13 as described above, but the feeding rod 3
is not able to return because it is distorted by the stub I/tube plate 15, and remains in the advanced position as shown in Figure 7.

By repeating the above operation, the squeezing part 7 is successively advanced, and the tube 25 can be squeezed from the rear to squeeze out the caulking material 33 inside.

After squeezing out the entire amount of caulking material 33, it can be easily removed by loosening the adjusting screw 23 and fixing screw 29 and pulling the empty tube 25 forward.

In the embodiment shown in FIGS. 8 and 9, the fixture 29a
, open the upper clamping claw 30 as shown, and remove the tube 2.
5, and then close the upper clamping claw 30 and fixing the free end with the fixture 29a, the upper clamping claw 3
0 and the upper edge of the support frame portion 27.
With this, the rear end of the tube 25 is firmly fixed, and thereafter, the caulking material inside the tube 25 can be squeezed out in the same manner as in the previous embodiment.

In addition, although the illustrated embodiment shows the case where the ironing members 21.22 of the laddering section 7 are formed of circular arc plates, the configuration of the ironing members 21.22 is not limited to the illustrated example. Other configurations may be used as long as it is a semi-cylindrical member or other similar shape, and the same applies to the tube rear end holding portion 8.

Furthermore, by making the feeding rod 3 a square shaft as shown in the figure, the relative positional relationship between the fixed handle 2 and the squeezing part 7 can be maintained without separately providing a guide member, etc., which not only simplifies the pa structure but also... Although it has excellent advantages, it goes without saying that it may be of a type other than a rectangular axis.

As explained above, according to the present invention, even if a tube is filled with a highly viscous and hard material such as caulking material, it can be easily squeezed out and used at a work site, and it is possible to There is no need to fill a special container, and therefore the desired tube can be used as is, and its operation is simple and easy to use.

In addition, the squeezing of the tube is done between the squeezing members of the squeezing part that moves forward together with the feeding rod, so it is possible to reliably squeeze the tube from the rear end to the tip, and the squeezed out part is filled with the tube. Since the squeezing condition can be adjusted to the optimum state according to the properties of the contents, there are various effects such as smoother squeezing.

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view showing an embodiment of the tube extrusion gun according to the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is the same as Fig. 1. 4 is a front view of the same stop plate, FIG. 5 is an enlarged cross-sectional view of the ironing part in FIG. 1, FIG. 6 is a front view of the same, and FIG. 7 is shown in FIG. 1. FIGS. 8 and 9 are sectional views showing the state in which the tube extrusion gun is used, and FIGS. 8 and 9 are perspective views showing modified examples of the tube rear end clamping part. 1...tube pressure gun, 2...fixed handle, 3...feeding rod, 5...
Movable handle, 6... Feeding mechanism, 7...
...Tube squeezing part, 8...Tube rear end clamping part, 11...Feeding plate, 15...Stop plate, 21.22...Tightening member , 23・
...Adjustment screw, 25 ...Tube, 28
．． 30...Pinching claw, 29...Fixing screw.

Claims (1)

[Scope of utility model registration request] A feeding rod that is slidably inserted and supported by a fixed handle;
and a feeding mechanism that feeds out the feeding rod intermittently by gripping a movable handle pivotally supported by the fixed handle, wherein a tube squeezing portion is attached to the front end of the feeding rod and the fixed handle is provided with a tube squeezing portion at the front end of the feeding rod. Each tube rear end clamping portion is provided with an upper and a lower straining member facing each other on a frame fixed to the front end of the feeding rod, and at least one straining member is connected to the other straining member. The movable ironing member is formed to be movable in a direction toward and away from the ironing member, and the gap between the movable ironing member and the fixed ironing member can be adjusted by means of an adjustment member such as a screw, and the rear end clamping portion of the tube is formed by a fixed clamping claw. and a movable clamping claw, and is provided with a fixing means for pressing and fixing the movable clamping claw to a fixed clamping claw, and the feeding rod is advanced by a predetermined pitch by a gripping operation of the movable handle, A gun for squeezing out a tube, characterized in that the tube is squeezed by upper and lower squeezing members of the squeezing part that move forward together with the squeezing part to squeeze out the contents.