JP6464022B2 - Centering tool - Google Patents

Description

  The present invention relates to a centering tool that can mark the center of one side surface of a three-dimensional shape such as a pillar, a building material, a tombstone, and a signboard.

  Patent Document 1 relates to a centering tool, and the problem is to determine the center of the cross section of the workpiece and simultaneously measure the inner diameter or outer diameter of the workpiece. The basic structure of the solving means is that one pinion 3 rotatably provided on a pinion shaft 7 having an index 7a in the housing 2 is engaged with the pinion and can be brought into and out of contact with the housing 2. And a pair of rack members 14 and 15 having a pair of contact members 11 and 11 which are provided at the outer end portion and simultaneously contact the inner peripheral surface or the outer peripheral surface of the workpiece W1. (The symbol is that of Patent Document 1).

  Although the centering tool has an advantage that the center of the cross section of the workpiece can be obtained without being an expert, the configuration is complicated because the pinion 3 and the pair of rack members 14 and 15 are specified requirements. It is suitable for obtaining the center of a cylinder, which is expensive to manufacture, but not suitable for marking the center of one side surface of a three-dimensional shape such as a pillar, building material, tombstone, signboard, etc. There was a point.

Utility Model Registration Gazette No. 2511667

  The main object of the present invention is that even a non-skilled person can easily mark the center of one side surface of a three-dimensional shape such as a pillar, a building material, a tombstone, and a signboard. The second object is that the main object can be achieved with a simple configuration.

  The centering tool of the present invention is a long plate body having an index in the center, a pair of left and right folding members provided at the left and right ends of the long plate body, and positioned inside the left and right folding members. And a pair of left and right operation pieces that are slidably provided on the elongated plate body and have a pair of left and right contact portions that are in contact with each other so as to sandwich both side surfaces of the centering object, and the left operation piece One end portion, and the other end portion is connected to the right operation piece, and a pair of traction members folded back to the left and right folding members in a substantially stretched state, and at least the left and right When either one of the operation pieces is manually slid along the longitudinal direction of the elongated plate body, the left and right operation pieces approach or separate from each other synchronously with respect to the index. .

  The centering tool of the present invention includes a long plate having an index at the center, a pair of left and right folded portions provided at the left and right ends of the long plate, and inside the left and right folded portions. A pair of left and right operation pieces that are positioned and slidably provided on the elongated plate body, and one end portion of the left operation piece are connected to the other end portion to the right operation piece, respectively. And a pair of traction members folded back to the left and right folded portions in a substantially stretched state, and at least one of the left and right operation pieces is manually moved along the longitudinal direction of the elongated plate body. When the slider is slid, the left and right operation pieces approach or separate from each other synchronously with reference to the index. The term “elongate plate” here is a wide concept that includes a general object difference shape to a somewhat thick rectangular parallelepiped.

(A) The invention described in the independent claim can easily mark the center of a three-dimensional shape such as a pillar, a building material, a tombstone, a signboard, etc., even by an unskilled person with a simple configuration.
(B) In the invention according to claim 2, the pair of left and right folding members are rollers rotatably provided on the fixed shaft, and the pair of pulling members are either linear or string-like, The pair of left and right operation pieces can smoothly pull the pulling member.
(C) In the invention described in claim 4, the pair of left and right folded portions is either one of the both ends of the elongated plate or the streak-like notches formed at both ends, and the pair of traction members is Since it is in the form of a tape, the configuration is further simplified. Therefore, the manufacturing cost can be kept as low as possible.
(D) In the invention according to claim 5, since the centering object has a three-dimensional shape having a placement bottom surface, a flat top surface, and a side peripheral surface, for example, an OO house, OOOO at the center of one side surface of the tombstone The present invention can be used when engraving characters such as graves, attaching characters or designs to the center of a signboard, or attaching marks to the center of building materials.
(E) In the invention described in claim 6, since the index is any one of a line orthogonal to the long side of the long plate, a marking notch, and a marking through-hole, the object can be easily centered while visually recognizing. You can mark things.

FIGS. 1 to 8 are explanatory views showing a first embodiment of the present invention, and FIGS. 9 to 14 are explanatory views showing a second embodiment of the present invention.
Explanatory drawing from the perspective of 1st Embodiment. Explanatory drawing from the front view (a part of the pulling member is omitted). Explanatory drawing from planar view. FIG. 4 is a sectional view taken along line 4-4 of FIG. FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. Explanatory drawing which mutually approached on the basis of the parameter | index which calculates | requires the center for the left and right operation pieces in the separated state. When the centering object is a tombstone, an explanatory diagram in which the center of one side surface of the tombstone is marked. In FIG. 7, the rubber sheet which has a marking in the center is match | combined with the marking of the center of a gravestone, and the rubber sheet is affixed on the said gravestone for character engraving. Explanatory drawing from the perspective of 2nd Embodiment. Explanatory drawing from the front view. Explanatory drawing from planar view. 12-12 sectional view taken on the line of FIG. FIG. 13 is an enlarged sectional view taken along line 13-13 of FIG. Explanatory drawing which mutually approached on the basis of the parameter | index which calculates | requires the center for the left and right operation pieces in the separated state. Explanatory drawing which shows the 2nd fitting structure of a elongate plate body and an operation piece. Explanatory drawing which shows the 3rd fitting structure of a elongate plate body and an operation piece.

  1 to 8 are explanatory views of the centering tool X according to the first embodiment of the present invention. The centering object Y of the centering tool X has a three-dimensional shape having a placement bottom surface and a flat top surface, and a side circumferential surface in a direction along the placement bottom surface and the flat top surface. The center of any one side surface of the flat upper surface can be centered. Therefore, although the said centering target Y is three-dimensional shapes, such as a pillar, a building material, a tombstone, a signboard, etc., in the embodiment, a "gravestone" is demonstrated as an example.

  First, in FIG. 1, F is a floor surface, Y is a three-dimensional tombstone placed on the floor, a is a bottom surface of the tombstone, b is a flat top surface of the tombstone, and c is a placement. It is a side peripheral surface in the direction along the bottom surface and the flat top surface. The side circumferential surface c is formed in an arc shape depending on the shape of the tombstone. Here, the term “one side surface” means any one of the placement bottom surface a, the flat top surface b, and the side peripheral surface c. The left and right of the centering tool X are based on, for example, the plan view of FIG.

  Next, in each figure, 1 is a long plate body having an index M at the center, and this long plate body 1 is a metal plate or a synthetic resin plate, and is formed in a ruled shape. The length of the long plate 1 can be arbitrarily set in consideration of the horizontal width and the vertical length of the centering object Y. For example, when the centering object Y is a tombstone, It is longer than each of the width and length. This is because, when obtaining the center of the one side surface b of the centering object Y, a pair of left and right operation pieces 4 and 4A, which are slidably provided on the long plate 1, are brought close to the index M. Because. The index M is any one of a line orthogonal to the long side of the long plate body 1, a marking notch, and a marking through hole, and is preferably a line orthogonal to the long side or facing outward in plan view. This is a V-shaped marking notch. The long plate 1 is preferably transparent.

  Reference numerals 2 and 2A denote a pair of left and right folded members provided at the left and right end portions 1a and 1b of the long plate body 1, and these folded members 2 and 2A are preferably a vertical fixed shaft 2a and the fixed shaft. 2 and a roller 2b having a circumferential groove 3 on a side peripheral surface thereof. The folding members 2 and 2A may be a short rod-shaped shaft member in which the vertical fixed shaft 2a and the roller 2b having the circumferential groove 3 on the side peripheral surface are integrally formed.

  Reference numerals 4 and 4A denote a pair of left and right sides that are positioned inside the left and right folded members 2 and 2A and that are slidably provided on the long plate 1 and that touch both sides of the centering object Y. It is a pair of left and right operation pieces having a contact portion. For example, as shown in FIGS. 4 and 5, the operation pieces 4, 4 </ b> A of the embodiment have a horizontally long rectangular cross section that fits outwardly on the upper surface, the back surface, and both side surfaces on the long side of the ruled long plate 1. And a contact portion 4b, 4b in the front-rear direction orthogonal to the longitudinal direction (left-right direction) of the elongated plate 1 and the back surface of the fit portion 4a. The pair of contact portions 4b and 4b of the operation pieces 4 and 4A sandwich the both side surfaces d and d of the centering target Y, and are preferably formed as long plate-like downward projecting pieces.

  In the embodiment, as shown in FIG. 3, the left and right contact portions 4 b and 4 b are continuous from the back surface of the elongated plate 1 and protrude from the front side surface 1 c by a predetermined amount while facing each other. Therefore, when the center of the centering object Y is obtained, the long plate 1 is not shaken in the front-rear direction, and the both side surfaces d and d of the centering object Y can be securely held.

  Reference numerals 5 and 6 denote a plurality of (for example, two) couplers fixedly provided on the upper surfaces of the pair of left and right operation pieces 4 and 4A. Although the detailed structures of these connectors 5 and 6 are not particularly shown, for example, a horizontal through hole through which a string-like traction member can be passed is provided. Thus, as shown in FIG. 3, one end 7a, 8a is attached to the left operating piece 4, and the other end 7b, 8b is attached to the connecting piece 5, 6 on the right operating piece 4A. And a pair of traction members that are folded back by the left and right folded members 2 and 2A in a substantially stretched state. In the embodiment, these pulling members 7 and 8 are either linear or string-like, and their end portions 7a, 7b, 8a, and 8b are in a state of penetrating through the through holes of the connectors 5 and 6. It is preferable to connect appropriately.

  In the above configuration, FIG. 6 is an explanatory view in which the left and right operation pieces 4 and 4A in the separated state are close to each other on the basis of the index M for obtaining the center. When the centering tool X of the present invention is slid along the longitudinal direction of the long plate 1 with at least one of the left and right operation pieces 4, 4A being picked, the left and right operation pieces 4, 4A approaches or separates from each other synchronously with the central index M as a reference. In other words, like the cable that moves up and down on the inclined surface, the two pulling members 7 and 8 are brought into contact with and separated from each other by pulling the operation piece 4 (4A) on the other side.

  FIG. 7 is an explanatory diagram in which a marking m is attached to the center of one side surface (flat upper surface) b of the tombstone Y when the centering object is the tombstone Y. In this case, first, as shown in FIG. 1, the back surface of the long plate 1 is placed on one side surface b of the tombstone Y, and then one or both operation pieces 4, as shown in FIG. 4A with reference to an index M centered on 4A, the vertical inner surfaces of the pair of left and right contact portions 4b and 4b are brought into contact with the left and right side surfaces d and d of the tombstone Y, and thereafter As shown in FIG. 7, linear markings m and m are attached to the center of the upper end portion and the lower end portion of the one side surface b of the tombstone Y with the central index M as a mark. In this case, it is desirable to add the markings m and m to the upper and lower portions by repeating the same process.

  FIG. 8 is a cross-sectional view of the rubber sheet Z having crossed markings M1 and M2 in the center of FIG. 7, and the rubber sheet Z is placed on the tombstone Y. It is explanatory drawing stuck.

  A spring member may be included in a part of the two pulling members 7 and 8. In the case of such an embodiment, the pulling members 7 and 8 can be directly or indirectly provided on the long plate 1 with the tension members 7 and 8 being more stretched.

  Next, another embodiment of the present invention will be described with reference to FIGS. In the description of the second embodiment, the same parts as those in the first embodiment are denoted by the same or similar reference numerals, and redundant descriptions are omitted.

The main difference between the second embodiment and the first embodiment is that
(A) The two symmetrical pulling members 7A, 8A are tape-like strip members, and it is desirable that the material of these tape-like strip members 7A, 8A is made of a strong synthetic resin fiber. .
(B) The connecting portion of the pair of symmetrical left and right operation pieces 4B, 4C is perpendicular to the longitudinal direction of the traction members 7A, 8A because the two traction members 7A, 8A are tape-like strip members having a predetermined width. A plurality of connecting long holes 5A, 6A, and therefore, the end portions 7a, 7b, 8a, 8b of the two pulling members 7A, 8A are respectively passed through the connecting long holes 5A, 6A. It is connected. Desirably, the end portions 7a, 7b, 8a and 8b through the connecting long holes 5A and 6A are wound in a required amount so as to protrude from the short diameter of the connecting long holes 5A and 6A having a stopper function. .
(C) The left and right end portions 1a and 1b of the long plate 1A are made to be left and right folded portions 2B and 2C, respectively. 11 and 11 are formed.
(D) The index M has an outward V-shape.

  In the above configuration, FIG. 14 is an explanatory view in which the left and right operation pieces 4B, 4C are close to each other on the basis of the index M for obtaining the center, and the upper and lower virtual lines of the elongated shape 1A are illustrated. For convenience, when the left and right operation pieces 4B and 4C slide the long plate 1A in the longitudinal direction, the positional displacement of the end portions 7a, 7b, 8a and 8b of the two pulling members 7A and 8A is changed. Show. Therefore, the two embodiments can obtain the same actions and effects as the first embodiment.

  Next, FIG. 15 is an explanatory view showing a second fitting structure between the long plate 1B and the left and right operation pieces 4D, 4E, and FIG. 16 shows the long plate 1C and the left and right operation pieces 4F, 4G. It is explanatory drawing which shows the 3rd fitting structure. As apparent from FIGS. 15 and 16, the left and right operation pieces 4D, 4E, 4F, and 4G are, for example, when the long plate bodies 1B and 1C are a pair of engaged portions (female) 12 and 13, respectively. Has a pair of engaging portions (male) 14 and 15 engaged with the engaged portions (female) 12 and 13. As described above, the fitting structure of the operation pieces 4D and 4E having the lip groove shape in the longitudinal cross section with respect to the long plate bodies 1B and 1C and the operation pieces 4F and 4G having the U-shaped cross section downward is a matter that can be appropriately designed.

  Although not particularly illustrated, for example, the rear side surface 1d in the front-rear direction of the long plate 1 is formed so as to protrude inward, and the left and right folded members 2 for the traction member are formed at the left and right ends of the folded portion. 2A is provided, and a bent portion (fitting portion) similarly formed on the rear side surface of the operation pieces 4, 4A, 4B, 4C, 4D, 4E, 4F, and 4G is externally fitted to the bent portion of the long plate 1 For example, the position of the bent portion and the fitting state of the operation piece can be appropriately designed within a range that does not depart from the subject of the invention.

  INDUSTRIAL APPLICABILITY The present invention can be used as a centering tool that can mark the center of one side surface of a three-dimensional shape such as a pillar, a building material, a tombstone, and a signboard.

X ... Centering tool,
Y ... Centering object,
b ... One side surface (flat upper surface) of the centering object,
M ... index,
m ... markings on the object
1, 1A, 1B, 1C ... long plate,
2, 2A ... folding member,
2a ... fixed shaft, 2b ... roller,
2B, 2C ... left and right folded parts,
4, 4A, 4B, 4C, 4D, 4E, 4F, 4G ... left and right operation pieces,
4a ... fitting part, 4b ... contact part,
5, 6 ... connector,
5A, 6A ... Connection part (connection long hole),
7, 8, 7A, 8A ... a pair of traction members,
7a, 7b, 8a, 8b ... each end of the traction member,
11 ... Long 1A guide notch,
12, 13 ... engaged portion (female),
14, 15 ... engaging part (male).

Claims (6)

A long plate having an index in the center, a pair of left and right folded members provided at the left and right ends of the long plate, and the elongated plate located inside the left and right folded members A pair of left and right operation pieces that are slidably provided on the body and have a pair of left and right contact portions that are in contact with each other so as to sandwich both side surfaces of the centering object, and one end portion of the left operation piece, The other end portion is connected to the right operation piece, and a pair of traction members folded back to the left and right folding members in a substantially stretched state, and at least one of the left and right operation pieces is manually operated When the slide plate is slid along the longitudinal direction of the elongated plate body, the left and right operation pieces approach or separate from each other synchronously with reference to the index. 2. The centering device according to claim 1, wherein the pair of left and right folding members are rollers rotatably provided on a fixed shaft, and the pair of pulling members are either linear or string-shaped. tool. A long plate having an index at the center, a pair of left and right folded portions provided at the left and right ends of the long plate, and the long plate located inside the left and right folded portions A pair of left and right operation pieces slidably provided on the body and one end of the left operation piece are connected to the right operation piece, and the other end is connected to the right operation piece. Each of the left and right operation pieces is manually slid along the longitudinal direction of the long plate body. Is a centering tool that approaches or separates from each other synchronously with respect to the index. The pair of left and right folded portions according to claim 3 is either one of the both ends of the elongated plate body or guide notches formed at both ends, and the pair of traction members are tape-shaped. A featured centering tool. 4. The centering object according to claim 1, wherein the centering object has a three-dimensional shape having a placement bottom surface, a flat top surface, and a side circumferential surface in a direction along the placement bottom surface and the flat top surface. A centering tool characterized by being capable of centering the center of one side surface of either the mounting bottom surface or the flat top surface. 4. The centering tool according to claim 1, wherein the index is one of a line orthogonal to the long side of the long plate, a marking notch, and a marking through hole.

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