JPH08312157A - Repair material injector and nozzle - Google Patents

Abstract

PURPOSE: To enable loading even to both of a screwed type pedestal and a push-in type driving fitting. CONSTITUTION: A repair material injector has a cylinder 3, a nozzle 4 fitted at the front end of the cylinder 3 and a piston 6 inserted into the cylinder 3 and used for pushing out a repair material on the inside of the cylinder 3 from the nozzle 4. The nozzle 4 is formed as a push-in joining section 7, in which no screw thread is formed to a section in specified length from a front end, and formed as a screwing section 8, in which a screw thread is shaped in the rear section of the push-in joining section.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a repair material injection device and a nozzle, and more particularly to a repair material injection device and a nozzle for injecting a repair material into a damaged portion of a wall surface.

[0002]

2. Description of the Related Art Conventionally, in order to inject a repair material into a damaged portion of a wall surface to repair the wall surface, a cylinder having a nozzle at its tip is filled with the repair material and the repair material is pushed out by a piston. A repair material injection device is used.

If the damage to the wall surface is a crack running perpendicularly to the wall surface, the nozzle of the repair material injection device is provided with a screw thread, and the nozzle is mounted on a pedestal attached to the outer surface of the wall surface. The repair material is injected into the crack that is screwed and runs vertically. If the damage to the wall surface is a crack running horizontally on the wall surface (so-called floating), the nozzle of the repair material injection device is not provided with a screw thread, and the wall surface has a slender cylindrical shape. The metal fitting is driven, the nozzle is pushed into the metal fitting, and the repair material is injected into the floating portion through the metal fitting.

[0004]

However, the damage pattern of the wall surface is not constant, and even at relatively close locations, cracks mainly run perpendicularly to the wall surface and cracks mainly run horizontally to the wall surface. Sometimes mixed with
It is necessary to prepare both a repair material injection device having a nozzle for connecting to the pedestal and a repair material injection device having a nozzle for connecting to the driving metal every time the repair location is moved. In addition, there is a problem that the repair work is extremely complicated and complicated.

Further, since the repair material injection device as described above is long, if there is an obstacle near the wall surface to be repaired, the repair material injection device is attached to the pedestal or the driving tool. There is also a problem that loading is difficult.

The present invention has been made to solve the above problems, and it is a first object of the present invention to provide a repair material injection instrument which can be loaded on both the pedestal and the driving metal fitting. It is what

A second object of the present invention is to provide a repair material injection device that enables injection of the repair material into the repair location even if there is an obstacle near the wall surface to be repaired. A third object of the present invention is to provide a nozzle capable of injecting a repair material into a repair location even if an obstacle exists near the wall surface to be repaired.

[0008]

In order to achieve the first object, the repair material injection device according to the present invention has (a) a cylinder and (b) a nozzle provided at the tip of the cylinder. And (c) a piston for pushing the repair material inserted into the cylinder and filling the inner space of the cylinder from the nozzle, wherein the nozzle has a portion of a predetermined length from the tip. It is characterized in that it is formed as a driving metal fitting connecting portion which is connected to the driving metal fitting, and a rear portion of the driving metal fitting connecting portion is formed as a pedestal connecting portion which is connected to the pedestal.

In the repair material injection device of the present invention, a portion having a predetermined length from the tip of the nozzle is formed as a driving metal fitting connecting portion which is connected to the driving metal fitting, and a rear portion of the driving metal fitting connecting portion is connected to the pedestal. Is formed as a pedestal connecting portion, that is, since this nozzle has both a pedestal connecting portion that can be connected to the pedestal and a driving metal fitting connecting portion that can be connected to the driving metal fitting, It can be loaded on any of the fittings. Therefore, according to the repair material injection device of the present invention, it is possible to repair both the damaged portion where the crack runs vertically on the wall surface and the damaged portion where the crack runs horizontally on the wall surface.

In the repair material injection device of the present invention, the nozzle can be detachable from the tip of the cylinder. By doing so, the nozzle of any shape can be attached, and when the nozzle is damaged, it can be replaced.

A repair material injection device for achieving the second object of the present invention comprises: (a) a cylinder; and (b) a nozzle which is provided at the tip of this cylinder and whose tip is bent at a substantially right angle from the middle. (C) a piston for pushing the repair material inserted into the cylinder and filling the inner space of the cylinder from the nozzle.

In the repair material injection device of the present invention, since the nozzle is bent at a substantially right angle, the cylinder is arranged so as to be horizontal with the wall surface when the repair material is injected into the repaired portion on the wall surface. Even if there is an obstacle near the wall, the obstacle does not interfere much.

In the repair material injection device of the present invention, the tip portion of the nozzle bent at a substantially right angle is formed as a driving metal fitting connecting portion for connecting a driving metal fitting at a portion of a predetermined length from the tip. The rear portion of the fitting connection portion is preferably formed as a pedestal connection portion connected to the pedestal.
By doing so, it is possible to deal with both the repaired portion where the crack runs vertically to the wall surface and the repair portion where the crack runs horizontally to the wall surface as described above.

In the repair material injection device of the present invention,
The piston has a piston rod in which fixing ribs are juxtaposed left and right at a predetermined position, and a rear end opening of the cylinder has a through hole capable of closing the rear end opening and locking the fixing rib. It is preferable that a lid body is attached, and a guide body that guides the fixing rib so as to be fitted into the through hole when pulling the piston rod is arranged on an inner wall surface of the lid body. With such a structure, when the piston is pulled rearward, the fixing rib is automatically guided by the guide body and pulled out from the through hole of the lid body, so that the fixing rib passes through the through hole. Thus, it is possible to save the trouble of intentionally turning the piston left and right to perform trial and error.

The nozzle according to the third object of the present invention is a nozzle which is attached to the tip of a cylinder of a repair material injecting device and through which the repair material filled in the cylinder is extruded. It is characterized by being bent at a right angle.

Since the nozzle of the present invention is bent substantially vertically, the repair material injection device equipped with this nozzle can inject the repair material also into the repaired portion of the wall surface where there is an obstacle nearby.

In the nozzle of the present invention, the tip portion bent at a substantially right angle is formed as a driving metal fitting connecting portion which is connected to the driving metal fitting at a portion having a predetermined length from the tip, and the driving metal fitting connecting portion is connected. The rear part is preferably formed as a pedestal connecting part connected to the pedestal. By doing so, it is possible to deal with both the repaired portion where the crack runs vertically to the wall surface and the repair portion where the crack runs horizontally to the wall surface as described above.

Other objects of the present invention will become apparent from the detailed description given below. However, while the detailed description and specific examples describe the most preferred embodiments, various changes and modifications within the spirit and scope of the invention will be apparent to those skilled in the art from the detailed description, and This is described as an example.

[0019]

EXAMPLES Specific examples of the repair material injection device, the L-shaped repair material injection device and the nozzle according to the present invention will be described with reference to the drawings.

FIG. 1 shows a repair material injection device according to an embodiment of the present invention. This repair material injection device 1 is shown in FIG.
As shown in FIGS. 1 (a) and 1 (b), a nozzle 4 is provided at the tip of a cylinder 3 whose tip 2 has a conical shape, and a lid 5 is screwed into the rear opening. A piston 6 is slidably inserted inside.

The nozzle 4 is formed as a push-in joint portion 7 formed of an elongated cylindrical body having no thread at a predetermined length from the tip, and a screw thread is provided at a rear portion of the push-in joint portion 7. It is formed as a joint 8. Further, the piston 6 includes a frustoconical tip portion 9,
Two annular sliding contact members 10, 10 are provided, and a rear portion is provided with a supporting portion 11 for a coil spring 13 described later. Further, a piston rod 12 extending rearward is planted in the center of the support portion 11. Also,
A coil spring 13 is provided between the lid 5 and the piston 6.
Is installed so as to be supported by the support portion 11,
The coil spring 13 biases the piston 6 toward the front side of the cylinder 3. Therefore, the lid 5
The repair material that has been removed and is placed in the internal space 14 of the cylinder 3 is pushed by the tip portion 9 of the piston 6 and the nozzle 4
Is extruded through the in-pipe passage 15.

Further, the piston rod 12 is shown in FIGS.
As shown in FIG. 1, the first half consists of rods whose ribs 16a, 16b form a cross-shaped cross section, and the latter half consists of cylindrical rods 17, on which handles 18, 18 are vertically planted. ing. Further, as shown in FIG. 1 (a), fixing ribs 19, 19 whose rear side is obliquely cut are provided upright in the middle of the ribs 16a, 16a in the front half.

As shown in FIGS. 1 and 2, the piston rod 12 in which the fixing ribs 19 and 19 are erected in this way is provided in the central portion of the lid 5 and has a circular hole portion 20. It is arranged so as to penetrate through the through hole 22 formed of the straight hole portions 21 and 21, and through the central portion of the guide groove member 23 provided at the inner center of the lid body 5.

This guide groove member 23 is shown in FIGS.
As shown in (a), a concave conical surface 24 that narrows toward the rear is formed in the substantially central portion, and a circular cross-section circular hole portion 25 and linear cross-sectional hole portions 26, 26 are formed so as to penetrate the concave conical surface 24.
A guide groove 27 consisting of and is provided. The concave conical surface 24 has an elliptical cross section, and the straight hole portions 26, 26 are provided in the major axis portion thereof. As a result, when the piston 6 is pulled toward the rear of the cylinder 3 by pulling the piston rod 12 by grasping the handles 18, 18 against the biasing force of the coil spring 13, the fixing rib 1
9 and 19 contact the concave conical surface 24 (at the position indicated by the phantom line in FIG. 2A), the concave conical surface 2
4 has a diameter that decreases toward the rear and increases as it approaches the straight-line hole portions 26, 26, so that the fixing ribs 19, 19 have concave pyramids as indicated by solid arrows in FIG. 2 (a). It slides (rotates) while being in contact with the surface 24, and is fitted into the linear hole portions 26, 26 of the guide groove 27 in cross section. After being fitted in the straight-line hole portions 26, 26 and passing through the guide groove member 23 in this way, the fixing ribs 19, 19 further pass through the through hole 22 as shown in FIG. Go out from the lid 5. Here, by rotating the piston rod 12 as shown by an outlined arrow in FIGS. 2 (a) and 2 (b), the fixing ribs 19, 19 are fixed.
2 is moved (to a position indicated by an imaginary line in FIG. 2B), the fixing ribs 19 and 19 are attached to the outer surface of the lid 5 even if the grips 18 and 18 of the piston rod 12 are released. By being caught, the piston 6 is maintained in a state of being pulled to the rear portion of the cylinder 3 regardless of the biasing force of the coil spring 13.

When the piston 6 is thus drawn toward the rear portion of the cylinder 3, the screwing portion 8 of the nozzle 4 provided at the tip of the cylinder 3 is shown in FIG.
As shown in (c), the inner peripheral surface is screwed into a pedestal 31 provided with a screw thread 30, or the push-in joint 7 of the nozzle 4 is attached.
Is pressed into a driving metal fitting 33 made of an elongated cylindrical body having a notch 32 at its tip end to be connected. In addition, this pedestal 3
1 is used for attaching the mounting surface 34 to the wall surface and injecting the repair material into the crack when the crack of the wall surface to be repaired is running mainly perpendicularly to the wall surface. On the other hand, the driving tool 33 is used for driving the tip portion 34 into the wall surface and injecting the repair material into the crack when the crack in the wall surface to be repaired is running mainly horizontally to the wall surface. . Further, when the push-in joint 7 is an obstacle when the nozzle 4 is attached to the pedestal 31, the push-in joint 7 may be cut. Further, the nozzle 4 may be detachable from the tip portion 2 of the cylinder 3 in a screw type, for example.

As described above, after screwing into the pedestal 31 or pushing into the metal fitting 33 for connection, the piston rod 12 is rotated to release the locking by the fixing rib 19, and the pressing force by the coil spring 13 is applied to the cylinder. When the member 6 is urged, the repair material is pushed out from the nozzle 4 to the pedestal 31 or the driving fitting 33.

FIG. 3 shows a repair material injection device 4 according to another embodiment.
0 is shown. Also in this repair material injection device 40, a nozzle 41 is provided at the tip of a cylinder 3 whose tip portion 2 has a conical shape, and a lid 5 similar to that in the above-mentioned embodiment is screwed into the rear opening, so that the inside of this cylinder 3 A piston 6 having a piston rod 12 implanted in the same central portion as in the above embodiment is slidably inserted therein. The same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted.

In this embodiment, the nozzle 41 is vertically bent from the middle, and the bent portion is reinforced by ribs 42a and 42b, and the push-in joint portion 7 similar to that in the above embodiment is provided at the most distal end portion. Is provided. According to the repair material injection device 41 of this embodiment, since the nozzle 41 is bent vertically, the repair material injection device 41 is arranged so that the cylinder 3 is horizontal with respect to the wall surface to be repaired.
Since the repair material can be injected by arranging, the repair work can be performed without any problem even if there is an obstacle near the wall surface to be repaired. It should be noted that both the screwing portion 8 and the push-in joining portion 7 may be provided at the most distal end portion of the nozzle 41 as in the above-described embodiment, or only the screwing portion 8 may be provided in place of the push-in joining portion 7. May be.

FIG. 4 shows that, like the nozzle 41 of the repair material injection device 40, it is vertically bent in the middle and
Nozzle 5 that can be attached to and detached from any repair material injection device by screwing
0 is shown. This nozzle 50 is provided with a screw thread (female screw) 51 inside the base end portion, and the bent tip end portion is reinforced by ribs 52a and 52b as in the above-described embodiment, and the tip end portion is provided with the above-mentioned embodiment. Push joint 7 similar to
Is provided. In the repair material injection device 40, the repair material passes through the inner pipe passage 53a and the bent inner pipe passage 53b and exits from the tip of the push-in joint 7.
It should be noted that both the screwing portion 8 and the press-fitting joint portion 7 may be provided at the most distal end portion of the nozzle 50 as in the above embodiment,
Instead of the press-fitting joint portion 7, only the screwing portion 8 may be provided.

As mentioned above, it is obvious that the present invention can be variously modified. Such modifications are within the spirit and scope of the invention, and all such variations and modifications apparent to those skilled in the art are intended to be within the scope of the following claims.

[Brief description of drawings]

1A and 1B are views showing a repair material injection device of the present embodiment, in which FIG. 1A is a side sectional view and FIG. 1B is a front view.

2A and 2B are views showing a fixing mechanism of the repair material injection device of the present embodiment, in which FIG. 2A is a sectional view taken along the line AA, and FIG.
FIG. 7 is a sectional view taken along line BB.

FIG. 3 is a diagram showing an L-shaped repair material injection device of the present embodiment, (a) is a side sectional view, and (b) is a front view.

FIG. 4 is a diagram showing a nozzle of this embodiment,
(A) is a sectional side view, (b) is a front view, (c) is a figure which shows a front-end | tip part.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Repair material injection device 3 Cylinder 4 Nozzle 5 Lid body 6 Piston 7 Push-in joint part 8 Screwing part 12 Piston rod 13 Coil spring 19 Fixing rib 22 Through hole 23 Guide groove member 24 Concave conical surface 27 Guide groove 31 Pedestal 33 Stroke Included metal fitting 40 Repair material injection tool 41 Nozzle 50 Nozzle 51 Thread

Claims (7)

[Claims] 1. A cylinder, (a), (b) a nozzle provided at the tip of this cylinder, and (c) a repair material inserted into this cylinder and filled in the internal space of the cylinder, is extruded from the nozzle. The nozzle has a portion for a predetermined length from the tip, which is formed as a driving metal fitting connecting portion connected to the driving metal fitting, and the rear portion of the driving metal fitting connecting portion is connected to the pedestal. A repair material injection device, which is formed as a pedestal connecting portion. 2. The repair material injection device according to claim 1, wherein the nozzle is detachable from the tip of the cylinder. 3. A cylinder, comprising: (a) a cylinder; (b) a nozzle provided at a tip of the cylinder and having a tip bent substantially at a right angle from the middle; (c) an inside of the cylinder inserted into the cylinder. A repair material injection device, comprising: a piston for pushing the repair material filled in the space from the nozzle. 4. The tip portion of the nozzle, which is bent substantially at a right angle, is formed as a driving metal fitting connecting portion for connecting a driving metal fitting with a portion having a predetermined length from the tip, and a rear portion of the driving metal fitting connecting portion. The L-shaped repair material injection device according to claim 3, wherein is formed as a pedestal connecting portion connected to the pedestal. 5. The piston has a piston rod in which fixing ribs extend laterally at a predetermined position, and the rear end opening of the cylinder can be closed at the rear end opening and the fixing rib can be locked. A lid body having a large through hole is attached, and a guide body for guiding the fixing rib to be fitted into the through hole when pulling the piston rod is arranged on the inner wall surface of the lid body. The repair material injection device according to any one of claims 1 to 4, wherein: 6. A nozzle which is attached to the tip of a cylinder of a repair material injection device and through which the repair material filled in the cylinder is extruded, the tip of which is bent at a substantially right angle from the middle. . 7. The tip portion bent at a substantially right angle is formed as a driving metal fitting connecting portion for connecting a driving metal fitting with a portion having a predetermined length from the tip, and a rear portion of the driving metal fitting connecting portion is a pedestal. The nozzle according to claim 6, wherein the nozzle is formed as a pedestal connecting part connected to the nozzle.