JPH106251A - Insertion marking tool for tubular body - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To improve the workability by simplifying a marking work. SOLUTION: As a tool for inserting a mark indicating a required length as an insertion margin from the tip of a vinyl chloride pipe P ₁ , P ₂ , P ₃ , P _4, a bottom surface 11 abutted against the tip of each vinyl chloride pipe. And is erected perpendicular to the bottom surface 11,
A wall 20 whose height from the bottom 11 to the tip is set equal to the length required for the insertion margin of each PVC pipe
And a boundary indicator 21 formed at the end of the wall 20 and matching the boundary of the insertion margin when the end of each PVC pipe is brought into contact with the bottom face 11 and the respective PVC pipes are moved along the wall 20. Employ an insertion margin marking tool equipped with

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for inserting a tubular body such as a rigid vinyl chloride pipe into another tubular body or a connecting portion and joining the tubular body with a mark indicating a necessary area as a margin for inserting the tubular body from a tip end thereof. It relates to an insertion margin marking tool to be attached.

[0002]

2. Description of the Related Art When a vinyl chloride pipe used for piping around water, etc. is inserted into another vinyl chloride pipe or a pipe joint and joined together, if the length of the overlapping portion is not sufficiently short, this joining is performed. There was a risk that water would leak from the part or the PVC pipe would fall out. Therefore, conventionally, in order to prevent such an event from occurring, a marking operation has been carried out after cutting and cleaning the vinyl chloride tube to clarify a portion to be inserted.

[0003] This marking operation is performed as follows. 1) Check the length of the insertion margin for each size (diameter) of the PVC pipe in the table. 2) Place a ruler on the end of the vinyl chloride tube, secure the length of the corresponding insertion margin, draw a line at that position with a pen or the like, and mark it.

[0004]

However, in the conventional marking operation, the following problems have been raised. In other words, a) it is troublesome to check the length of the insertion margin in a table. Also, even if you remember the table, there is a risk that it will be mistaken. B) It is not easy to draw a line while placing a ruler on the end of the PVC pipe, and the line is bent and the accurate mark cannot be identified.

The present invention has been made in view of the above circumstances, and has as its object to simplify the marking operation and improve the workability.

[0006]

According to a first aspect of the present invention, there is provided a marking tool for inserting a tubular body into a tubular body, which is inserted from the tip of the tubular body when the tubular body is inserted and joined to another tubular body or a connecting portion. A tool for marking the required length as a base, which is abutted against the tip of the tubular body, and which is erected perpendicular to the base, and whose height from the base to the tip is the tubular body And a scale portion that is set equal to the required length as an insertion margin, and is formed at the tip of the scale portion, and is inserted when the tip of the tubular body is abutted against the base portion and the tubular body is moved along the scale portion. And a boundary indicating unit that matches the boundary of

According to a second aspect of the present invention, there is provided a marking tool for insertion into a tubular body, wherein the boundary indicating portion according to the first aspect is separated in parallel to the base portion and along the scale portion. It is characterized in that it has a shape bent in an arc shape along the circumferential direction of the tubular body.

According to a third aspect of the present invention, there is provided an insertion marking tool for a tubular body, wherein a fitting portion which fits inside the tubular body is provided upright on a base portion according to the first or second aspect. It is characterized by the following.

According to a fourth aspect of the present invention, there is provided a marking tool for insertion into a tubular body, wherein the fitting portion according to the third aspect comprises:
N + 1 (n is an integer) steps are stacked in a stepwise manner corresponding to the size of each tubular body to be marked, and n
The height from the upper part of the fitting part of the step to the boundary indicating part is,
It is characterized in that it is set to be equal to a necessary length as an insertion margin of the tubular body fitted to the (n + 1) th stage fitting portion.

[0010] According to a fifth aspect of the present invention, there is provided a marking tool for inserting a tubular body into a tubular body, the tubular part corresponding to the tip of the tubular body fitted with the fitting part. It is characterized by a scale indicating the size of the body.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the insertion marking tool for a tubular body according to the present invention will be described with reference to FIGS. The insertion margin marking tool shown in FIG. 1 is a vinyl chloride pipe (tubular body) P having different sizes (diameters).
₁ , P ₂ , P ₃ , and P ₄ make it possible to mark the boundaries of the insertion margins, respectively. A wall portion (scale portion) 20 having an arc-shaped cross section is provided, and has a shape in which a bottomed cylinder is vertically divided in half.

On a flat bottom surface (base portion) 11 located inside the bottom plate 10, a fitting portion 30 that fits inside each vinyl chloride tube is provided upright. The tip of the wall portion 20 is formed in an arc shape parallel to the bottom surface 11 and has a boundary indicating portion 21 that matches the boundary of the insertion margin of each PVC pipe.
It has become.

The fitting portion 30 has a shape in which substantially columnar members having different diameters are stacked in a stepwise manner, and each stage has a vinyl chloride pipe P ₁ , P ₂ , P ₃ , P _4. Are fitted to each other.

The first, which corresponds to the first step counted from the bottom surface 11,
The diameter of the fitting portion 31 is slightly smaller set than larger PVC pipe P ₁ of the inner diameter of the four most sizes of, so that can be easily fitted to the inside of the PVC pipe P _1.

The height from the bottom surface 11 to the boundary instruction unit 21 is set equal to the required length as a white insertion of PVC pipe P _1, as shown in FIG. 2, the first fitting portion 31 When is fitted inside the PVC tube P ₁ abuts against the front end of the PVC pipe P ₁ to the bottom surface 11, although white insertion of PVC pipe P ₁ white insertion boundary instruction unit 21 is covered by the wall portion 20 To match the boundaries of

[0016] The diameter of the second stage corresponding to the second fitting portion 32 is set slightly smaller than the major vinyl chloride pipe P ₂ the inner diameter of the size in the following PVC pipe P _1, vinyl chloride pipe P ₂ It can be easily fitted inside. The height from the upper surface (upper) 31a of the first fitting portion 31 to the boundary instruction unit 21 is set equal to the length of the white insertion of PVC pipe P _2, the second fitting portion 32 When the front end of the vinyl chloride pipe P ₂ is fitted to the inside of the vinyl chloride pipe P ₂ and abutted against the upper surface 31 a of the first fitting portion 31, the insertion margin of the vinyl chloride pipe P ₂ is covered with the wall 20. The boundary indicating section 21 matches the boundary of the insertion margin.

[0017] The diameter of the third stage corresponding to the third fitting portion 33 is set slightly smaller than the major vinyl chloride pipe P ₃ the inner diameter of the size in the following PVC pipe P _2, PVC pipe P ₃ It can be easily fitted inside. The height from the upper surface 32a of the second fitting portion 32 to the boundary instruction unit 21 is set equal to the length of the white insertion of PVC pipe P _3, vinyl chloride tube a third fitting portion 33 When it is fitted to the inside of the P ₃ abuts against the leading end of the PVC pipe P ₃ on the upper surface 32a of the second fitting portion 32, although white insertion of PVC pipe P ₃ is covered by the wall portion 20 boundary indication unit 21 matches the border of the insertion margin.

The diameter of the fourth fitting portion 34, which corresponds to the fourth stage, is the smallest size PVC pipe P ₄ among the _four.
Of which is set slightly smaller than the inner diameter, so that can be easily fitted to the inside of the PVC pipe P _4. The height from the upper surface 33a of the third engagement portion 33 to the boundary instruction unit 21 is set equal to the length of the white insertion of PVC pipe P _4, vinyl chloride pipe and the fourth fitting portion 34 When it is fitted inside the P ₄ abuts against the tip of the PVC pipe P ₄ on the upper surface 33a of the third engagement portion 33, although white insertion of PVC pipe P ₄ is covered by the wall portion 20 boundary indication unit 21 matches the border of the insertion margin.

Further, as shown in FIG.
The first to fourth fitting portions 31, 32, 33, and 34 are erected toward the center in the width direction inside the wall portion 20,
Inside the PVC tube _{P 1, P 2, P 3} , P 4, when fitting the respective fitting portions 31, 32, 33, and 34 which correspond respectively, positions which PVC tube was also close to the wall portion 20 It is arranged to be.

On the wall portion 20, vinyl chloride pipes P ₁ , P ₂ ,
Each of the corresponding fitting portions 31, ₃ inside P ₃ and P ₄
A small window 22 is provided for confirming that 2, 3, and 34 are fitted. The small window 22 is opened in a rectangular shape along the vertical direction of the wall 20, and is provided with a bottom plate 1.
One side on the 0 side is formed so as to coincide with the bottom surface 11, and the length from this one side to the other side opposite to the fourth side
4 is set to be sufficiently longer than the height up to the upper surface 34a, so that the entire fitting portion 30 can be seen through the small window 22.

Further, beside the small window 22, a bottom surface 11 is provided.
Upper surfaces 31a, 32a, 3 of the first to third fitting portions
Scales 23 are marked corresponding to 3a.
, The numerical values indicating the sizes of the vinyl chloride pipes P ₁ , P ₂ , P ₃ , and P ₄ are specified.

[0022] The insertion marginer constructed as described above.
Using King tool, PVC pipe P₁, P_Two,
P_Three, P_FourMark the boundaries of the margins
The procedure of the marking work will be described. PVC pipe P
₁About PVC pipe P₁First fitting part 3 inside
1 is fitted and PVC pipe P₁To the bottom 11
Butt, wall section 20 with PVC pipe P₁Along.
Here, PVC pipe P₁The first fitting part 31 is inside the
Fitted PVC pipe P₁Of the end hits the bottom 11
Make sure that At this time, when viewed from the small window 22 side
PVC pipe P₁Numerical value indicating the size of PVC
Pipe P₁It is correct if the tip matches. vinyl chloride
Pipe P₁Check that the first fitting part 31 is fitted inside the
If accepted, as shown in FIG. 4, indicate the boundary using a pen or the like.
PVC pipe P along part 21 ₁Draw a line on the circumference of
Attach With this, PVC pipe P₁Insertion margin
Is shown.

[0023] For PVC pipe P _2, abuts the distal end of the PVC pipe P ₂ and the second fitting portion 32 is fitted to the inside of the PVC pipe P ₂ on the upper surface 31a of the first fitting portion 31 , placed along the wall portion 20 to the PVC pipe P _2. To verify when viewed from the small window 22 side that inside the second fitting portion 32 is fitted a tip of PVC pipe P ₂ is abuts against the upper surface 31a of the first fitting portion 31. PVC pipe P ₂
Of Once it was confirmed that the second fitting portion 32 on the inside is fitted, mark draw a line on the peripheral surface of the PVC pipe P ₂ along the boundary indication portion 21 with a pen or the like.

Similarly, the third and fourth fitting portions 33 and 34 corresponding to the inside of the vinyl chloride pipes P ₃ and P ₄ are also provided.
Are selected and fitted, and after checking the state of fitting, a mark is made on the peripheral surface of the pipe.

According to the above insertion margin marking tool, the following effects can be obtained. That is, when along the PVC pipe P ₁ the wall portion 20 abutted against the tip of the PVC pipe P ₁ to the bottom surface 11, boundary indication portion 21 covers the wall 20 is white insertion of PVC pipe P ₁ is since matches the boundary of plug white, may be marked along the boundary indication section 21 white plug on the peripheral surface of the PVC pipe P ₁ by drawing a line with a pen or the like. Moreover, wall 20 is erected perpendicular to bottom 11, since the wall portion 20 is positioned along the PVC pipe P ₁ by abutting the tip of the PVC pipe P ₁ to the bottom surface 11 ,
The troublesome work of hitting the PVC pipe with a ruler can be omitted.

[0026] Moreover, when fitting the first fitting portion 31 provided upright on the bottom surface 11 on the inside of the PVC pipe P _1, wall 2 the tip of the PVC pipe P ₁ is abutted to the bottom surface 11
0 because no longer or skewed or offset relative to PVC pipe P _1, a boundary indication section 21 vinyl chloride pipe P
₁ can be placed in the correct position.

Further, when the vinyl chloride pipe P ₁ is moved along the wall portion 20, the boundary indicating portion 21 coincides with the boundary of the insertion margin along the shape of the peripheral surface of the vinyl chloride pipe P ₁ .
It can be drawn accurately line along the peripheral surface of the PVC pipe P _1.

Further, with the second fitting portion 32 is fitted to the inside of the PVC pipe P ₂ the tip of the PVC pipe P ₂ first
When the upper surface 31a of the fitting portion 31 is abutted, the boundary indicator 2
Since 1 is equal to the boundary of the white insertion of PVC pipe P _2, it is possible to draw a precise line along the peripheral surface of the PVC pipe P _2. Similarly, a line indicating the boundary of the insertion margin can be drawn for the vinyl chloride tubes P ₃ and P ₄ .

[0029] Thus, the inside of the different PVC pipe _{P 1, P 2, P 3} , P 4 sizes, each fitting portion 31, 32, 33 and 34 of the first to fourth appropriately respectively The fitting allows each PVC pipe to be marked with its insertion margin, thereby allowing one marking tool to have versatility capable of accommodating PVC pipes of different sizes.

In addition, vinyl chloride tubes P of different sizes
₁ , P ₂ , P ₃ , P ₄ and the first to fourth fitting portions 3
1, 32, 33, and 34 can be checked by checking that the scale 23 indicating the size of each PVC pipe coincides with the tip of the PVC pipe. You can save the trouble of checking the table every time,
Misunderstandings can be prevented beforehand.

In this embodiment, the insertion margin marking tool which can be applied to four vinyl chloride pipes having different sizes has been described. However, it is also possible to further widen the application width by changing the number of steps of the fitting portion. is there.

In the present embodiment, a vinyl chloride tube is used as the target tubular body. However, the insertion marking tool of the present invention is not particularly limited to this, and may be applied to other tubular bodies. be able to.

[0033]

As described above, according to the marking tool for insertion of a tubular body according to the first aspect, the height from the base to the tip of the scale portion is set as the insertion margin of the corresponding tubular body. The length is set equal to the required length, and when the tip of the tubular body is abutted against the base and the tubular body is moved along the scale, the boundary indicator matches the border of the insertion margin. This eliminates the trouble of confirming, and prevents misunderstanding. In addition, the scale part is set up vertically with respect to the base part, and the scale part is arranged along the tubular body by abutting the tip of the tubular body on the base part. The troublesome work of hitting the rule can be omitted. from these things,
Marking work can be simplified and workability can be improved.

According to the second aspect of the present invention, the boundary indicating portion is spaced apart from the base portion in parallel with the base portion and extends along the circumferential direction of the tubular body along the scale portion. When the tubular body is made to follow the scale part, the boundary indicating part matches the boundary of the insertion margin along the shape of the peripheral surface of the tubular body. Can be accurately drawn along.

According to the third aspect of the present invention, a substantially cylindrical fitting portion is provided upright on the base portion, and the fitting portion is fitted inside the tubular body. Since the tip of the tubular body abuts against the base and the scale does not shift or tilt with respect to the tubular body, the boundary indicator can be placed at the correct position on the tubular body, improving work accuracy. Can be done.

According to the fourth aspect of the present invention, the height from the top of the n-th stage fitting portion to the boundary indicating portion is fitted to the (n + 1) th stage fitting portion. It is set equal to the required length as the insertion margin of the tubular body to be inserted, the fitting portion of the (n + 1) th stage is fitted inside the corresponding tubular body, and the tip thereof is located above the fitting portion of the nth stage. , The boundary indicating portion coincides with the boundary of the insertion margin of this tubular body, so that the fitting portion of each step is fitted inside the corresponding tubular body so that the tubular body of a different size can be used. The insertion margin can be marked, so that a single marking tool can have versatility that can accommodate a plurality of tubular bodies having different sizes.

According to the marking tool for inserting and inserting a tubular body according to the fifth aspect, the scale indicating the size of the tubular body is marked on the scale portion, and the fitting portion is accurately fitted inside the tubular body. If they are fitted, the tip of the tubular body corresponds to the scale, so that the state of fitting between the tubular body and the fitting part can be checked, thereby saving the trouble of checking the table as in the conventional case. It can be omitted and misunderstandings can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of an insertion margin marking tool for a tubular body according to the present invention.

FIG. 2 is a diagram showing a state in which vinyl chloride tubes of different sizes are abutted on an insertion margin marking tool,
(A) is a plan view of the tool viewed from the small window side, and (B) is a plan view of the tool viewed from the fitting portion side.

FIG. 3 is a sectional view taken along line III-III in FIG.

FIG. 4 is an explanatory diagram showing a state where a line is drawn on a vinyl chloride tube.

[Explanation of symbols]

Reference Signs List 11 bottom surface (base portion) 20 wall portion (scale portion) 21 boundary indicating portion 23 scale 30 fitting portion 31 first fitting portion 32 second fitting portion 33 third fitting portion 34 fourth fitting portion P ₁ , P _2, P _3, P ₄ PVC pipe

Claims (5)

[Claims] Claims: 1. A tool for inserting a tubular body into another tubular body or a connecting portion and joining the tubular body and joining the tubular body with a tip from the tip of the tubular body to mark the required length. A base portion abutting against the tip, a scale portion standing upright with respect to the base portion, and a height from the base portion to the tip set to be equal to a length required for insertion of the tubular body; And a boundary indicator that is formed at the tip of the scale portion and that matches the boundary of the insertion margin when the tip of the tubular body is abutted against the base portion and the tubular body is moved along the scale portion. Insertion marking tool for tubular body. 2. The method according to claim 2, wherein the boundary indicating portion is spaced apart in parallel with the base portion, and has a shape bent in an arc along a circumferential direction of the tubular body along the scale portion. 2. The insertion marking tool for a tubular body according to claim 1, wherein: 3. An insertion margin marking tool for a tubular body according to claim 1, wherein a fitting portion which fits inside the tubular body is provided upright at the base portion. . 4. The fitting portion is stacked in a stepwise manner in n + 1 (n is an integer) stages corresponding to the size of each tubular body to be marked, and from the top of the n-th stage fitting portion. The tubular member according to claim 3, wherein a height to the boundary indicating portion is set to be equal to a length required as an insertion margin of the tubular member fitted to the (n + 1) th stage fitting portion. Marking tool for inserting the body. 5. A scale indicating a size of the tubular body corresponding to a tip of the tubular body in which the fitting portion is fitted, is marked on the scale portion. 4
An insertion margin marking tool for a tubular body as described in (1).