【０００１】
【発明の属する技術分野】
本発明は、ピッチノギスに関するものである。
【０００２】
【従来の技術】
従来のピッチノギスとしては、図６に示すように、被測定物１０１の孔１０２の中心と孔１０３の中心間距離を測定するものがある。
【０００３】
本尺１０４の先端に固定した案内部材１０５に本尺側ジョウ１０６を摺動自在に設け、ネジ１０７をねじ込んで固定する。
【０００４】
バーニャ１０８を本尺１０４上を摺動自在に設け、ネジ１０９をねじ込んで本尺１０４上に固定する。このバーニャ１０８の先端側にバーニャ側ジョウ１０９を固定する。
【０００５】
本尺側ジョウ１０６及びバーニャ側ジョウ１１０の下部の先細り状位置決め部は、先端を通る中心線に対して対称で斜状上向き位置決め線よりなる。
【０００６】
孔１０２中心と孔１０３中心間距離を測定するには、図６に示すように、本尺側ジョウ１０６の位置決め部を孔１０２に挿入し位置決めし、バーニャ側ジョウ１１０の位置決め部を孔１０３に挿入し位置決めして測定する。
【０００７】
本尺側ジョウ１０６は中心線１１１に対し左右対称で、概略長方形板体であり、下部の先細り状位置決め部は先端１１２を通る中心線１１１に対して対称で、斜状上向き位置決め線１１３よりなる。
【０００８】
バーニャ側ジョウ１１０も同様に、中心線１１４に対し左右対称で、概略長方形板体であり、下部の先細り状位置決め部は先端１１５を通る中心線１１４に対し左右対称で、斜状上向き位置決め線１１６よりなる。
【０００９】
本尺側ジョウ１０６もバーニャ側ジョウ１１０の何れもが中心線１１１・１１４に対して対称の斜状上向き位置決め線１１３・１１６があるため、この斜状上向き位置決め線１１３・１１６が孔１０２・１０３の上縁に当接して本尺側ジョウ１０６を孔１０２の中心に、バーニャ側ジョウ１１０を孔１０３の中心に位置決めする。
【００１０】
次に、被測定物２０１の端面２０２から孔２０３中心までの距離の測定は、図７に示すようにして行う。
【００１１】
ピッチノギスは図６の場合と同様で、ただ、本尺側ジョウ１０６を下方へ移動させてネジ１０７をねじ込んで固定して行う。本尺側ジョウ１０６の側面１１７を被測定物２０１の端面２０２に当接させてバーニャ側ジョウ１１０を孔２０３に挿入し位置決めして行う。
【００１２】
【発明が解決しようとする課題】
本尺側ジョウ１０６の側面１１７を被測定物２０１の端面２０２に当接させてバーニャ側ジョウ１１０を孔２０３に挿入し位置決めして、被測定物２０１の端面２０２から孔２０３中心までの距離の測定を行う場合、端面２０２から孔２０３中心までの距離が５ｍｍ未満の寸法は測定不可能である。本尺側ジョウ１０６の側面１１７とバーニャ側ジョウ１１０の側面１１８が当接した場合、本尺側ジョウ１０６の側面１１７とバーニャ側ジョウ１１０の中心線１１４までの距離が５ｍｍであって、その距離を両者が当接しているため縮小させることはできない。
【００１３】
【課題を解決するための手段】
そこで、本発明は、上記の事情に鑑み、端面２０２から孔２０３中心までの距離が５ｍｍ未満の寸法でも測定可能とすべく、本尺の先端に固定した本尺側ジョウを被測定物の端面に当接させ、本尺上を摺動するバーニャに固定したバーニャ側ジョウの下部の位置決め部を被測定物の孔に挿入・位置決めして、被測定物の端面から孔中心までの距離を測定するピッチノギスにおいて、本尺側ジョウが概略長方形板体であり、下端に突出片を設けて突出片の先端面を被測定物の端面に当接する測定面としたピッチノギスとした。
【００１４】
また、本発明は、端面２０２から孔２０３中心までの距離が５ｍｍ未満の寸法でも測定可能で、従来のように孔中心距離の測定も可能とすべく、本尺の先端に固定した本尺側ジョウを被測定物の端面に当接させ、本尺上を摺動するバーニャに固定したバーニャ側ジョウの下部の位置決め部を被測定物の孔に挿入・位置決めして、被測定物の端面から孔中心までの距離を測定するピッチノギスにおいて、本尺側ジョウが概略長方形板体であり、下端に突出片を設けて突出片の先端面を被測定物の端面に当接する測定面とし、上部の先細り状位置決め部は先端を通る中心線に対して対称で斜状下向き位置決め線よりなるピッチノギスとした。
【００１５】
【発明の実施の態様】
本発明を添付する図面に示す具体的な実施例に基づいて、以下詳細に説明する。
【００１６】
本発明のピッチノギスは、図１に示すように、被測定物１の端面２と、孔３の中心間距離を測定するものである。
【００１７】
本尺４の先端に固定した案内部材５に本尺側ジョウ６を摺動自在に設け、ネジ７をねじ込んで固定する。
【００１８】
バーニャ２１を本尺４上を摺動自在に設け、ネジ８をねじ込んで本尺４上に固定する。このバーニャ２１の先端側にバーニャ側ジョウ１０を固定する。
【００１９】
バーニャ側ジョウ１０の下部の先細り状位置決め部は、先端１１を通る中心線１２に対して対称で、斜状上向き位置決め線１３よりなる。
【００２０】
バーニャ側ジョウ１０は中心線１２に対して対称の斜状上向き位置決め線１３があるため、この斜状上向き位置決め線１３が孔３の上縁に当接してバーニャ側ジョウ１０を孔３の中心に位置決めする。
【００２１】
被測定物１の端面２から孔３中心までの距離の測定を行う。
【００２２】
ピッチノギスは従来の場合と同様で、ただ、本尺側ジョウ１４は異なる。本尺側ジョウ１４の下端の突出片１５の先端面１６を被測定物１の端面２に当接させてバーニャ側ジョウ１０を孔３に挿入し位置決めして行う。
【００２３】
本尺側ジョウ１４は概略長方形板体であり、下端に突出片１５を設けて突出片１５の先端面１６を被測定物１の端面２に当接する測定面とする。
【００２４】
図２に本尺側ジョウ１４を示す。材質はＳＵＳ系で、板厚は３．０ｍｍ、寸法公差は突出片１５の高さを除き±０．０１ｍｍの寸法公差、外周は糸面取り、測定面１６と本尺スライド面１７は研磨仕上げとする。
【００２５】
図３に本尺側ジョウ１４、バーニャ側ジョウ１０と本尺目盛りとバーニャ目盛りとの関係を示す。
【００２６】
本尺側ジョウ１４の突出片１５は５ｍｍ突出させ、バーニャ側ジョウ１０の幅は１０ｍｍである。バーニャ側ジョウ１０の先端１１と本尺側ジョウ１４の先端面１６が合わさると測定距離は０（ゼロ）となる。測定距離が０の場合、本尺目盛りの「１０」とバーニャ目盛り「０」とが一致する。
【００２７】
本尺側ジョウ１４’で従来の孔中心間距離の測定も可能とすべく、図４に示すように、上部の先細り状位置決め部は、先端１８を通る中心線１９に対して対称で、斜状下向き位置決め線２０よりなる。斜状下向き位置決め線２０・２０の中心角は４０°で、１．０ｍｍ円弧面に形成してある。
【００２８】
図５に示すように、本尺側ジョウ１４’の突出片１５は５ｍｍ突出させ、バーニャ側ジョウ１０の幅は１０ｍｍである。バーニャ側ジョウ１０の先端１１と本尺側ジョウ１４’の先端面１６が合わさると測定距離は０となる。測定距離が０の場合、本尺目盛りの「１０」とバーニャ目盛り「０」とが一致する。
【００２９】
【発明の効果】
本発明は、上述のように、本尺の先端に固定した本尺側ジョウを被測定物の端面に当接させ、本尺上を摺動するバーニャに固定したバーニャ側ジョウの下部の位置決め部を被測定物の孔に挿入・位置決めして、被測定物の端面から孔中心までの距離を測定するピッチノギスにおいて、本尺側ジョウが概略長方形板体であり、下端に突出片を設けて突出片の先端面を被測定物の端面に当接する測定面としたピッチノギスであるので、端面から孔中心までの距離が５ｍｍ未満の寸法でも測定可能である。
【００３０】
また、本発明は、本尺の先端に固定した本尺側ジョウを被測定物の端面に当接させ、本尺上を摺動するバーニャに固定したバーニャ側ジョウの下部の位置決め部を被測定物の孔に挿入・位置決めして、被測定物の端面から孔中心までの距離を測定するピッチノギスにおいて、本尺側ジョウが概略長方形板体であり、下端に突出片を設けて突出片の先端面を被測定物の端面に当接する測定面とし、上部の先細り状位置決め部は先端を通る中心線に対して対称で斜状下向き位置決め線よりなるピッチノギスであるので、端面から孔中心までの距離が５ｍｍ未満の寸法でも測定可能で、従来のように孔中心間距離の測定も可能である。
【００３１】
なお、最近においては、デジタルノギスが使用されるようになったが、±０．１ｍｍ以下保証の場合はデジタルノギスがよいが、±０．２ｍｍ以下保証の場合はデジタルノギスよりアナログノギスの方が使い勝手がよい。特に、中習者にとってはアナログノギスの方が使い勝手がよい。
【図面の簡単な説明】
【図１】本発明の具体的一実施例のピッチノギスで被測定物の端面と孔中心との距離を測定する正面図である。
【図２】本発明に係る本尺側ジョウの正面図である。
【図３】本発明の本尺側ジョウとバーニャ側ジョウとの関係を示す本尺目盛とバーニャ目盛との関係を示す図である。
【図４】従来の孔中心間距離測定と本発明の被測定物端面と孔中心間距離の測定の両者ができる本尺側ジョウの正面図である。
【図５】図４の本尺側ジョウとバーニャ側ジョウとの関係を示す本尺目盛とバーニャ目盛との関係を示す図である。
【図６】被測定物の孔の中心と孔の中心間距離を測定する従来のピッチノギスの正面図である。
【図７】被測定物の端面から孔中心までの距離の測定を行う従来のピッチノギスの正面図である。
【符号の説明】
４…本尺
１４…本尺側ジョウ
１…被測定物
２１…バーニャ
２…端面
１０…バーニャ側ジョウ
３…孔
１５…突出片
１６…先端面
１８…先端
１９…中心線
２０…斜状下向き位置決め線[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a pitch caliper.
[0002]
[Prior art]
As a conventional pitch caliper, there is one that measures the distance between the center of the hole 102 and the center of the hole 103 of the DUT 101 as shown in FIG.
[0003]
A main scale jaw 106 is slidably provided on a guide member 105 fixed to the end of the main scale 104, and a screw 107 is screwed in and fixed.
[0004]
A vernier 108 is slidably provided on the main scale 104, and a screw 109 is screwed in and fixed on the main scale 104. A vernier jaw 109 is fixed to the tip side of the vernier 108.
[0005]
The tapered positioning portion at the lower part of the main scale side jaw 106 and the vernier side jaw 110 is formed of a slanting upward positioning line symmetrical with respect to a center line passing through the tip.
[0006]
In order to measure the distance between the center of the hole 102 and the center of the hole 103, as shown in FIG. 6, the positioning portion of the main scale jaw 106 is inserted into the hole 102 and positioned, and the positioning portion of the vernier jaw 110 is positioned in the hole 103. Insert, position and measure.
[0007]
The main scale jaw 106 is bilaterally symmetric with respect to the center line 111 and is a substantially rectangular plate body. The lower tapered positioning portion is symmetrical with respect to the center line 111 passing through the tip 112 and is formed of an obliquely upward positioning line 113. .
[0008]
Similarly, the vernier jaw 110 is also symmetric with respect to the center line 114 and is a substantially rectangular plate, and the lower tapered positioning portion is symmetrical with respect to the center line 114 passing through the tip 115 and has an obliquely upward positioning line 116. Consisting of
[0009]
Since both the main scale jaw 106 and the burner side jaw 110 have obliquely upward positioning lines 113 and 116 symmetrical with respect to the center lines 111 and 114, the obliquely upward positioning lines 113 and 116 are formed by the holes 102 and 103. The jaw 106 is positioned at the center of the hole 102 and the jaw 110 at the vernier side is positioned at the center of the hole 103.
[0010]
Next, the measurement of the distance from the end surface 202 of the DUT 201 to the center of the hole 203 is performed as shown in FIG.
[0011]
Pitch calipers are the same as in the case of FIG. 6, except that the main jaw 106 is moved downward and the screw 107 is screwed in and fixed. The side face 117 of the main scale jaw 106 is brought into contact with the end face 202 of the DUT 201, and the vernier jaw 110 is inserted into the hole 203 and positioned.
[0012]
[Problems to be solved by the invention]
The side face 117 of the main scale jaw 106 is brought into contact with the end face 202 of the DUT 201, the vernier jaw 110 is inserted into the hole 203 and positioned, and the distance from the end face 202 of the DUT 201 to the center of the hole 203 is measured. When performing the measurement, a dimension in which the distance from the end face 202 to the center of the hole 203 is less than 5 mm cannot be measured. When the side surface 117 of the main ruler-side jaw 106 and the side surface 118 of the vernier-side jaw 110 abut, the distance between the side surface 117 of the main ruler-side jaw 106 and the center line 114 of the vernier-side jaw 110 is 5 mm. Cannot be reduced because they are in contact with each other.
[0013]
[Means for Solving the Problems]
Therefore, in view of the above circumstances, the present invention attaches a main scale side jaw fixed to the end of the main scale to enable measurement even when the distance from the end face 202 to the center of the hole 203 is less than 5 mm. And the lower part of the jaw jaw fixed to the vernier sliding on the main scale is inserted and positioned in the hole of the DUT, and the distance from the end face of the DUT to the center of the hole is measured. In this pitch caliper, the main jaw side jaw was a substantially rectangular plate body, and a protruding piece was provided at the lower end, and the tip face of the protruding piece was used as a measuring face contacting the end face of the measured object.
[0014]
In addition, the present invention can measure even a dimension in which the distance from the end face 202 to the center of the hole 203 is less than 5 mm, and can measure the center distance of the hole as in the prior art. The jaw is brought into contact with the end face of the object to be measured, and the positioning portion at the lower part of the vernier jaw fixed to the vernier sliding on the main scale is inserted and positioned in the hole of the object to be measured. In the pitch caliper for measuring the distance to the center of the hole, the main scale side jaw is a substantially rectangular plate body, a protruding piece is provided at the lower end, and the tip face of the protruding piece is a measurement surface that abuts against the end face of the object to be measured, and The tapered positioning portion was a pitch caliper formed of a slanting downward positioning line symmetrical with respect to a center line passing through the tip.
[0015]
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention will be described in detail below based on specific embodiments shown in the accompanying drawings.
[0016]
As shown in FIG. 1, the pitch caliper of the present invention measures the distance between the end face 2 of the DUT 1 and the center of the hole 3.
[0017]
A main scale jaw 6 is slidably provided on a guide member 5 fixed to the end of the main scale 4, and a screw 7 is screwed in and fixed.
[0018]
The vernier 21 is slidably provided on the main scale 4, and the screw 8 is screwed in and fixed on the main scale 4. The vernier jaw 10 is fixed to the tip side of the vernier 21.
[0019]
The tapered positioning portion at the lower part of the jaw 10 on the vernier side is symmetrical with respect to a center line 12 passing through the front end 11, and is formed of a slanting upward positioning line 13.
[0020]
Since the vernier jaw 10 has a slanting upward positioning line 13 symmetrical with respect to the center line 12, the slanting upward positioning line 13 abuts on the upper edge of the hole 3 so that the vernier jaw 10 is positioned at the center of the hole 3. Position.
[0021]
The distance from the end face 2 of the DUT 1 to the center of the hole 3 is measured.
[0022]
The pitch caliper is the same as in the conventional case, except that the main jaw 14 is different. The tip end surface 16 of the projecting piece 15 at the lower end of the main scale jaw 14 is brought into contact with the end surface 2 of the DUT 1, and the vernier jaw 10 is inserted into the hole 3 and positioned.
[0023]
The main scale jaw 14 is a substantially rectangular plate, and a protruding piece 15 is provided at a lower end, and a distal end face 16 of the protruding piece 15 is used as a measurement surface that abuts on the end face 2 of the DUT 1.
[0024]
FIG. 2 shows the main scale side jaw 14. The material is SUS type, the plate thickness is 3.0mm, the dimensional tolerance is ± 0.01mm dimensional tolerance except the height of the protruding piece 15, the outer circumference is thread chamfered, and the measurement surface 16 and the main slide surface 17 are polished. I do.
[0025]
FIG. 3 shows the relationship between the main scale side jaw 14 and the vernier side jaw 10 and the main scale scale and the vernier scale.
[0026]
The projecting piece 15 of the main scale side jaw 14 is protruded by 5 mm, and the width of the vernier side jaw 10 is 10 mm. When the tip 11 of the vernier-side jaw 10 and the tip end surface 16 of the main scale-side jaw 14 match, the measurement distance becomes 0 (zero). When the measurement distance is 0, the scale of the main scale "10" matches the scale of the vernier scale "0".
[0027]
As shown in FIG. 4, the tapered positioning portion on the upper side is symmetrical with respect to a center line 19 passing through the tip 18 so that the conventional jaw 14 ′ can also measure the conventional distance between the hole centers with the main scale side jaw 14 ′. It consists of a downward positioning line 20. The central angle of the slanted downward positioning lines 20 is 40 ° and is formed on a 1.0 mm arc surface.
[0028]
As shown in FIG. 5, the projecting piece 15 of the main scale-side jaw 14 'is protruded by 5 mm, and the width of the vernier-side jaw 10 is 10 mm. When the tip 11 of the vernier-side jaw 10 and the tip end surface 16 of the main scale-side jaw 14 ′ are aligned, the measurement distance becomes zero. When the measurement distance is 0, the scale of the main scale "10" matches the scale of the vernier scale "0".
[0029]
【The invention's effect】
As described above, according to the present invention, the main ruler jaw fixed to the tip of the main rule is brought into contact with the end face of the object to be measured, and the lower positioning portion of the vernier jaw fixed to the vernier sliding on the main ruler is provided. In a pitch caliper for measuring the distance from the end surface of the DUT to the center of the hole by inserting and positioning the DUT into the hole of the DUT, the main jaw is a roughly rectangular plate, and a projection is provided at the lower end to protrude. Since it is a pitch caliper in which the tip end surface of the piece is a measurement surface in contact with the end surface of the object to be measured, it can be measured even if the distance from the end surface to the hole center is less than 5 mm.
[0030]
Further, according to the present invention, the main ruler jaw fixed to the tip of the main rule is brought into contact with the end face of the object to be measured, and the lower positioning portion of the vernier side jaw fixed to the vernier sliding on the main rule is measured. In a pitch caliper for measuring the distance from the end face of the measured object to the center of the hole by inserting and positioning it in the hole of the object, the main scale jaw is a substantially rectangular plate, and a protruding piece is provided at the lower end and the tip of the protruding piece is provided. The surface is a measurement surface that abuts against the end surface of the DUT, and the tapered positioning portion at the top is a pitch caliper consisting of a slanting downward positioning line symmetrical to the center line passing through the tip, so the distance from the end surface to the center of the hole Can be measured even with a dimension of less than 5 mm, and the distance between hole centers can be measured as in the conventional case.
[0031]
In recent years, digital calipers have come to be used, but digital calipers are better when guaranteed ± 0.1 mm or less, but analog calipers are better than digital calipers when guaranteed ± 0.2 mm or less. Easy to use. In particular, analog calipers are more convenient for middle learners.
[Brief description of the drawings]
FIG. 1 is a front view of measuring a distance between an end surface of an object to be measured and a center of a hole with a pitch caliper according to a specific embodiment of the present invention.
FIG. 2 is a front view of the main scale side jaw according to the present invention.
FIG. 3 is a diagram showing the relationship between the main scale scale and the vernier scale showing the relationship between the main scale side jaw and the vernier side jaw of the present invention.
FIG. 4 is a front view of a main scale jaw capable of both measuring the distance between the center of the hole in the related art and measuring the distance between the end face of the object to be measured and the center of the hole according to the present invention.
FIG. 5 is a diagram showing the relationship between the main scale scale and the vernier scale showing the relationship between the main scale side jaw and the vernier side jaw shown in FIG. 4;
FIG. 6 is a front view of a conventional pitch caliper for measuring the distance between the centers of the holes of the object to be measured.
FIG. 7 is a front view of a conventional pitch caliper for measuring a distance from an end face of a measured object to a center of a hole.
[Explanation of symbols]
Reference numeral 4: main scale 14 ... main scale side jaw 1 ... DUT 21 ... verna 2 ... end face 10 ... verna side jaw 3 ... hole 15 ... protruding piece 16 ... tip end face 18 ... tip 19 ... center line 20 ... oblique downward positioning line
