JP3529565B2 - Hose removal tool - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hose removing tool suitable for removing a hose for transporting gas or liquid from a joint provided on a container or a tank.

[0002]

2. Description of the Related Art When transporting various gases and liquids through a hose, in order to prevent the gas and liquid from leaking from the hose joint, the mouth of the hose must be firmly fitted to the joint and the fitting must be done. Tighten the combined hose mouth with a hose band etc. to prevent it from coming out, and by additionally providing a collar (stopper) to prevent it from coming out on the peripheral surface of the joint part, the hose band's tightness of adhesion Is further raised so that the hose cannot be easily removed.

In addition, in the case of a rubber hose, when the hose is used for a long time, the inner surface of the hose is slightly melted and fused to the fitting surface of the joint portion, so that the above-mentioned hose band or a collar is provided. Together with this, it is possible to attach the hose to the joint part in a fairly strong state.

Therefore, the hose once fitted into the joint cannot be easily removed, and when pulling out forcibly, it is almost impossible to pull out by hand if there is no space. Since it is possible, conventionally, a hose was cut near the joint using a cutter or scissors, and then the remaining hose fused to the peripheral surface of the joint was cut and removed with a cutter. Was.

[0005]

However, the method of cutting and removing the hose with a cutter or scissors is very troublesome and takes a long working time. Moreover, the work is extremely dangerous and an accident such as an injury occurs. In some cases, in particular, in a place where the work space is small, there is a problem that these problems are exacerbated.

Therefore, the technical problem of the present invention is that the hose can be detached from the joint very easily without cutting or tearing the hose, and even in a narrow working space, it is easy and safe. It is an object of the present invention to provide a hose removal tool that can perform a hose removal work.

[0007]

[Means for Solving the Problems] Means taken in the present invention for solving the above technical problems are as follows.

(1) A main lever body having a guide shaft along the inner longitudinal direction and a drive pinion rotatably attached to an intermediate portion, and a tip end portion of the main lever body, provided in a state of being bent at a right angle. The main claw plate that has a fitting groove at the tip edge to fit the joint part where a hose is attached is formed, and the tip is pivotally supported up and down on the tip of the main lever body, The portion includes a sub-lever body provided with a drive rack that meshes with the drive pinion of the main lever body, and an operation rack that is slidably attached to the guide shaft of the main lever body and that meshes with the drive pinion. A movable body configured to move in the rear end direction of the main lever body under the meshing feed action of the drive rack, the drive pinion, and the operation rack by gripping and rotating the sub lever body. ,
A sub-claw plate mounted on one side of the movable body in a state of being bent at a right angle so as to be parallel to the main claw plate body, and having a notch formed in a fitting groove into which the above-mentioned joint portion is fitted at a tip edge thereof. A body and a spring for elastically or reciprocally moving the movable body in the direction of the tip of the main lever body so that the sub claw plate body is superposed on the back surface of the main claw plate body. thing.

(2) Each fitting groove of the main claw plate and the sub claw plate into which the joint is fitted is larger than the diameter of the joint.
Form a semicircular shape with a diameter .

(3) Each of the main claw plate body and the sub claw plate body is attached to the main lever body and the movable body in a replaceable manner.

According to the means described in the above (1), the front and rear edges of the main claw plate and the sub claw plate which are overlapped with each other in the front and rear direction, and the back surface of the sub claw plate are arranged along the outer surface of the tank or the like. In this state, insert the fitting grooves notched on both end edges into the gap between the end surface of the hose fitted to the joint and the outer surface of the tank, etc. Mate to the surface, then
When the sub-lever body is gripped and rotated with respect to the main lever body, the drive rack provided on the sub-lever body rotates the drive pinion, so that the movable body that meshes with the drive rack together with the sub-claw plate body It moves to the rear end side of the main lever body along the guide shaft against the elasticity of the spring, but the back surface of the sub-claw plate body is in contact with the outer surface of the tank etc. and cannot move to the rear end side. , Actually, the main claw plate can be relatively moved forward to push the hose laterally and be released from the joint part. The auxiliary lever body can be firmly gripped and rotated once. The hose fused to the joint can be easily and easily removed from the joint in a short time.

According to the means described in the above (2), since the fitting grooves of the main and auxiliary claw plate members can be fitted to the peripheral surface of the joint portion in a completely matched state, the auxiliary lever is provided. Both claw plates make it possible to remove the hose from the joint simply by grasping and rotating the body.

According to the means described in the above (3), among the plurality of main claw plate bodies and sub claw plate bodies having different fitting groove sizes depending on the size (diameter) of the joint portion to which the hose is connected. It is possible to remove the hose without trouble regardless of the size of the joint part by selecting the necessary items from the above and attaching them to the main lever body and the movable body respectively.

As described above, the above (1)-
The technical problems described above can be solved by the means described in (3), and the problems of the conventional technology can be solved.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a hose removing tool according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view showing the entire hose removing tool according to the present invention, FIG. 2A is a partial sectional plan view thereof, FIG. 2B is a front view thereof, and FIGS. It is a side view explaining the state before removing a hose using the hose removal tool of the present invention, and the state where it was removed. The hose removal tool according to the present invention is roughly classified into a main lever body 1, a sub-lever body 2 and The movable body 6, the main claw plate body 3 attached to the main lever body 1, the auxiliary claw plate body 4 attached to the movable body 6, and the spring 9S that repels or pulls the movable body 6.

As shown in the plan view shown in FIG. 5A, the side view shown in FIG. 5B, and the front view shown in FIG. 5C, the main lever body 1 has a downward section. The mounting plate 1X is formed into a substantially U-shaped elongated lever shape, and the shaft hole 1a is provided at the tip portion thereof, while the mounting plate 1X provided with a screw hole 1c for a set screw described later on the lower side of the tip portion at a substantially right angle. The shaft hole 1b for mounting the pinion is provided on the lower side of the central portion while being bent.
A cutout hole 1d for the auxiliary lever body described below on the upper surface side thereof
And mounting holes 1e, 1e are provided on the upper surface on the rear end side.

As is clear from the description of the plan view of FIG. 6A, the side view of FIG. 6B, and the front view of FIG. 6C, the sub-lever body 2 has a substantially U-shaped cross section. Is formed in the shape of an elongated lever, the front end portion 2T is provided with a shaft hole 2a, and the drive rack 2b is provided on the back surface of the fan-shaped intermediate piece 2X.
And a structure in which a pinion escape groove 2c, which will be described later, is provided in the root portion of the rack 2b.
As shown in FIGS. 1 to 4, by inserting the tip portion 2T inside the tip portion of the main lever body 1 and inserting the mounting shaft 5 into both the shaft holes 1a and 2a, Just like scissors, it is pivoted up and down.

As is clear from the description of the plan view of FIG. 9A, the side view of FIG. 9B, and the front view of FIG. 9C, the movable body 6 is a slide through which a guide shaft described below is inserted. Front and rear bearing pieces 6a, 6b having holes 6a ', 6b'
And an operating rack 6c that meshes with a drive pinion described later.
And a mounting plate 6e which is formed by bending the front surface of a supporting plate 6d which is hung vertically downward in a lateral direction.
Is provided with mounting holes 6f for fixing bolts for mounting a sub claw plate body, which will be described later, and the entire movable body 6 is a guide installed in the inner longitudinal direction of the main lever body 1 described above. It is slidably attached to the shaft 8 (see FIGS. 1 to 4).

As shown in FIGS. 1 to 4, the guide shaft 8 is fixed to the inner side of the rear end portion of the main lever body 1 by rivets 7e and 7e driven through the mounting holes 1e and 1e. The leg plate 7a of the bearing plate 7 and the mounting plate 1X connected to the tip of the main lever body 1 and the set screw 12
Is installed between the back plate 3b of the main claw plate body 3 fixed by using, and the other leg piece 7b of the bearing plate 7 projects downwardly for a long time, and the lower end portion thereof is the sub-lever body 2 described above. It is a stopper 7T when gripping and rotating.

As shown in the front view of FIG. 7 (A) and the side view of FIG. 7 (B), the main claw plate 3 described above is formed by bending side plates 3X, 3X on both sides of the back plate 3b. The rear plate 3b has a substantially U-shaped cross section, and a support hole 3c is formed in the upper end of the back plate 3b for inserting the tip end of the guide shaft 8 therein. Screw hole for screw 12 3g. 3g is drilled.

Similarly, left and right side plates 3X, 3X of the main claw plate 3
Has shaft holes 3a, 3a for inserting the above-mentioned mounting shaft 5, and the upper end of the back plate 3b described above pivotally supports the main lever body 1 of the sub-lever body 2. Tip 2
The tip portion of the guide shaft 8 is inserted into the support hole 3c while protruding to the inside of T, and the left and right side plates 3X, 3X are brought into contact with both outer surfaces of the tip portion of the main lever body 1 to form the shaft hole 3a. ，
3a, the mounting shaft 5 is inserted, and further the set screw 12 is screwed into each screw hole 3g into the screw hole 1c of the above-mentioned mounting plate 1X so that the main claw plate body 3 is perpendicular to the tip of the main lever body 1. It is constructed so that it can be attached and used in a bent state.

The back plate 3 which constitutes the main claw plate 3
As shown in FIG. 7, a fitting groove 3T formed in a substantially semicircular shape having a diameter slightly larger than that of a joint portion described later is cut out and formed in the lower end edge 3S of the rear plate 3b. Are holes 3d, 3e, 3f into which the heads of set bolts described later are fitted.
Is drilled, and the entire structure is as described above, and
A plurality of types of main claw plate bodies 3 having different sizes of the fitting groove 3T are prepared in advance, and a mechanism of selecting and using a required size is used.

As described in the front view of FIG. 8 (A) and the side view of FIG. 8 (B), the sub-claw plate body 4 described above is formed by bending side plates 4H, 4H on both left and right sides of the back plate 4X. It has a U-shape, and on the upper side of the back plate 4X, a fixing bolt 13a,
Holes 4a, 4b, 4c for inserting the sub claw plate body 4 into the mounting plate 6e of the movable body 6 through the 13b, 13c are provided, and the lower tip edge 4S has the above-mentioned main body. A fitting groove 4T having the same shape as the fitting groove 3T of the claw plate body 3 is cut out, and this sub claw plate body 4 has a different fitting groove 4T size similarly to the main claw plate body 3. A plurality of types are prepared in advance, and it is configured to select and use a required size from these.

In FIGS. 1 to 4, 11 is a support shaft 10.
A drive pinion rotatably attached to an intermediate portion of the main lever body 1 by means of which the drive rack 2b of the sub lever body 2 described above and the operation rack 6c of the movable body 6 described above are meshed with each other. When the sub-lever body 2 is gripped and rotated with respect to the main lever body 1 as shown in FIG. 1, the drive rack 2b operates upward to rotate the drive pinion 11 clockwise in the drawing, and this rotation causes the operation rack 6c to rotate. That is, the movable body 6 is structured to move rightward in the drawing.

The above-mentioned spring 9S includes the rear bearing piece 6b of the movable body 6 and the bearing plate 7 as shown in FIGS.
1, which is interposed between one of the leg pieces 7a, always moves the movable piece 6 leftward in FIG. 1 to move the back plate 4X of the sub-claw plate body 4 to the main claw as shown in FIG. The elastic effect of pressing against the back surface of the back plate 3b of the plate body 3 is exhibited.

In FIG. 3 and FIG. 4, W is a tank containing gas or liquid, R is a supply / discharge joint portion projecting from the tank W, and H is a supply / discharge joint connected to the joint portion R. The hose, HS, is a gap between the end surface of the hose H and the outer surface of the tank W.

Since the hose removing tool according to the present invention has the structure as described above, in order to remove the hose H from the joint portion R by using this tool, first, as shown in FIG. The fitting grooves 3T and 4T of both claw plate bodies 3 and 4 are inserted into the clearance HS and fitted to the upper peripheral surface of the joint portion R, and then the auxiliary lever body 2 is moved to the state shown in FIGS. When it is squeezed and rotated, the drive pinion 11 moves the movable body 6 into the spring 9S.
Since the main claw plate 3 moves in the right direction in the drawing while compressing, the main claw plate 3 moves in the left direction in the drawing. Can press the hose H to remove it from the joint R.

The use examples shown in FIGS. 3 and 4 are merely examples of implementation, and the tool may be used in a state opposite to that in the drawing, or the angle may be changed in the circumferential direction. The hose H can be easily removed even in a narrow space.

When the fitting grooves 3T and 4T do not match the size of the joint portion R in use, the claw plate bodies 3 and 4 having the matching sizes are selected and used as the main lever body 1. The movable body 6 may be replaced and attached for use.

[0031]

As described above, according to the hose removing tool of the present invention, the hose can be easily and safely removed from the joint without cutting or tearing the hose. Therefore, the working time can be shortened, and the advantage that the hose can be removed very easily without pulling or cutting the hose at various working sites such as an assembly site and a usage site can be exhibited.

[Brief description of drawings]

FIG. 1 is a side view illustrating the entire hose removing tool according to the present invention.

FIG. 2A is a partial cross-sectional plan view of the hose removing tool, and FIG. 2B is a front view thereof.

FIG. 3 is a partial cross-sectional side view showing a state in which the hose is removed using the hose removal tool according to the present invention.

FIG. 4 is a partial cross-sectional side view showing a state in which the hose is removed using the hose removing tool.

5A is a plan view of a main lever body, FIG. 5B is a side view thereof, and FIG. 5C is a front view.

6A is a plan view of a sub-lever body, FIG. 6B is a side view thereof, and FIG. 6C is a front view.

7A is a front view of a main claw plate, and FIG. 7B is a side view thereof.

FIG. 8 (A) is a front view of the auxiliary claw plate, and FIG. 8 (B) is a side view thereof.

9A is a plan view of a movable body, FIG. 9B is a side view thereof, and FIG. 9C is a front view.

[Explanation of symbols]

1 Main lever body 2 Secondary lever body 2T tip 2b drive rack 3 Main claw plate 3S tip edge 3T fitting groove 4 Sub claw plate 4S tip edge 4T fitting groove 6 movable body 6c working rack 8 guide shaft 9S spring 11 Drive pinion W tank R joint section H hose

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-6-143156 (JP, A) JP-A-61-293774 (JP, A) Practical application Sho-62-46571 (JP, U) (58) Survey Field (Int.Cl. ⁷ , DB name) B25B 25/00-33/00 B25B 1/00-11/02

Claims (3)

(57) [Claims] 1. A main lever body (1) in which a guide shaft (8) is provided along an inner longitudinal direction and a drive pinion (11) is rotatably attached to an intermediate portion, and a main lever body (1) of the main lever body (1). A main claw plate that is provided in a state of being bent at a right angle to the tip portion, and has a fitting groove (3T) into which a joint portion (R) fitted with a hose (H) is fitted is cut out at the tip edge (3S). The body (3) and the tip portion (2T) are vertically rotatably supported by the tip portion of the main lever body (1), and the middle portion is meshed with the drive pinion (11) of the main lever body (1). And an auxiliary lever body (2) provided with a drive rack (2b), which is slidably attached to the guide shaft (8) of the main lever body (1) and meshes with the drive pinion (11). It is equipped with a rack (6c), and by gripping and rotating the auxiliary lever body (2), Moving rack (2b), drive pinion (11) and working rack (6
c) a movable body (6) configured to move toward the rear end direction of the main lever body (1) in response to each meshing feed action, and the main claw plate body (6) on one side of the movable body (6). It is installed in a state bent at right angles so that it is parallel to 3),
The main claw plate body (1) is always provided with the auxiliary claw plate body (4) in which the fitting groove (4T) into which the joint portion (R) is fitted is cut out at the tip edge (4S), and the movable body (6). (9) The spring (9) is elastically or towed in the direction of the tip of the main claw plate (3) so that the sub claw plate (4) is superposed on the back surface of the main claw plate (3).
A hose removal tool characterized in that it is configured with S). 2. The fitting grooves (3T, 4T) of the main claw plate (3) and the sub claw plate (4) into which the joint portion (R) is fitted,
The hose removal tool according to claim 1, wherein the hose removal tool is formed in a semicircular shape having a diameter larger than the diameter of the joint portion (R). 3. The main claw plate body (3) and the sub claw plate body (4) are attached to the main lever body (1) and the movable body (6) in a replaceable manner. The hose removal tool according to claim 1.