JP3664374B2 - Hand measuring device - Google Patents

Hand measuring device Download PDF

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JP3664374B2
JP3664374B2 JP30601599A JP30601599A JP3664374B2 JP 3664374 B2 JP3664374 B2 JP 3664374B2 JP 30601599 A JP30601599 A JP 30601599A JP 30601599 A JP30601599 A JP 30601599A JP 3664374 B2 JP3664374 B2 JP 3664374B2
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Prior art keywords
rod
movable
fixed
casing
measuring element
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JP2001124505A (en
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敏治 末武
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株式会社南谷製作所
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  • A Measuring Device Byusing Mechanical Method (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)
  • Length-Measuring Instruments Using Mechanical Means (AREA)

Description

【0001】
【発明の属する技術分野】
本発明は手持ち型測長器に関する。
【0002】
【従来の技術】
機械部材の外径・内径や溝巾等の測定方法は、測長器の可動測定子および固定測定子を被測定物に接触させ両測定子間の距離を表示する方法が一般的であり、図8に示すような機械式のハンド測長器61が手軽に利用されている。この場合測長器61は、筐体62の内部にロッド63が設けられているとともに、そのロッド63上に可動測定子64が、支持部材65を介して移動自在に設けられている。可動測定子64は、筐体下面に設けられた移動溝66の溝巾とほぼ同じ寸法に形成されており、左右に回転移動しない。そして、操作レバー67を操作することによって可動測定子64の位置を移動して測定し、その測定寸法がダイヤルゲージ68に表示される構成となっている。
【0003】
【発明が解決しようとする課題】
しかしながら上記の如き構成では、可動測定子64を支持する支持部材65を小さくすることができないために筐体内の中空部69が大きなものとなり、このため筐体62の強度を保つことが難しく、測長器の軽量化・低コスト化を阻む要因となっていた。
そこで本発明は上記に鑑み、軽量なハンド測長器を安価に提供することを目的とするものである。
【0004】
【課題を解決するための手段】
上記目的を達成する請求項1に記載の発明の構成は、測定操作する移動手段と測定寸法表示手段とを具備する筐体に固着した固定測定子と、該筐体の基準面に沿って摺動する可動測定子とを被測定物に接触させ、両測定子間の距離を表示するハンド測長器において、前記可動測定子が、前記基準面と平行移動可能に前記筐体に支持されたロッドに固着され、前記移動手段の操作によりロッドを移動させて可動測定子を移動可能とし、筐体を長さ方向に複数の貫通孔を有する略ハニカム構造に形成し、前記筐体中心の貫通孔内に2つのスライド筒を前記貫通孔の内面への当接状態で固定して、該スライド筒を介してロッドを平行移動可能に支持し、ロッドの側面にロッドの中心軸と平行な溝を形成するとともに、該溝に係合するベアリングをスライド筒の内側に配置するものである。さらに請求項に記載の発明の構成は、軽量化をはかるため筐体をアルミニウムで形成したものである。
【0005】
【発明の実施の形態】
以下、本発明の実施の形態について図面を基に説明する。図1は本発明にかかる外側用ハンド測長器1の斜視図、図2はその透視側面図である。また図3は、図2におけるA−A線断面図である。
ハンド測長器1は、筐体2と、可動測定子3,固定測定子4,取っ手であるハンドル5,可動測定子3の移動手段としての操作レバー6,測定寸法表示手段としてのダイヤルゲージ7とからなる。以下、筐体2のハンドル5が取り付けられている面を上面、測定子が突出している面を下面という。
【0006】
筐体2はアルミ製で、図3に示すように長さ方向に複数の貫通孔を有し、略ハニカム構造を呈している。そして、筐体中心の中空部8上部を基準面として、その一端および略中央に、保持手段であるスライド筒9a,9bがボルト10,10・・にてそれぞれ螺着固定されているとともに、2つのスライド筒9a,9bにロッド11が挿通されている。ロッド11の側面には図4に示すように2本の溝12,12が長手方向に対向して平行に刻設されており、その溝12,12に丁度係合する突起部としてのベアリング13,13・・がスライド筒9a,9bの内側に配置され、ロッド11は回転移動することなくリニヤに摺動可能となっている。そしてスライド筒9bの後方位置(スライド筒9aの反対側・以下同様)に、ドーナツ状のストッパー14がロッド11に環装されているとともに、スライド筒9bとストッパー14との間にスプリング15が配置され、これによってロッド11は後方へ付勢され一定圧(例えば5N)で測定可能となっている。
【0007】
そして、上記の如きロッド11に可動測定子3がスライド筒9a,9bの間で固着されている。可動測定子3は筐体下面に設けられた移動溝16から筐体下方に突出し、移動可能となっている。また可動測定子3の後方位置で固定測定子4が、下側固定盤17にボルト18にて螺着され筐体下面に固定されており、ボルト18の操作により固定位置を変更することができる。さらに、可動測定子3および固定測定子4の先端近傍内側の相対する位置にそれぞれネジ孔19,19が穿設され、半球形のオーバーボール20を先端に有する測定プラグ21,21を螺着可能となっている。
【0008】
一方、ハンドル5は固定測定子4と同様に、2つの上側固定盤22,22に螺着され筐体上面に取り付けられている。またハンドル5の前方には操作レバー6が軸着されており、その先端がロッド11の前端に係止されているので、操作レバー6をハンドル側へ引き寄せることによってロッド11を前方へ移動させることができる。したがって、ボルト18および操作レバー6を操作することによって測定プラグ21,21先端の間隔(測定距離)を所定の範囲、例えば0mm〜150mmの範囲で調整可能となっている。
そして筐体2の先端には、可動測定子3の移動量を表示する公知のダイヤルゲージ7が取り付けられている。
【0009】
次に、上記ハンド測長器1の作用について説明する。ここでは、図5の如き外歯車23の外側Dを測定する例について述べる。
まず、外歯車23の歯形にあった径のオーバーボール20を有する測定プラグ21を選定し、可動測定子3および固定測定子4のネジ孔19,19に螺着する。次いで、操作レバー操作前の両測定プラグ間の距離が、測定箇所である外歯車23の外側Dより若干狭くなるように、ボルト18を操作して固定測定子4の固定位置を決定する。そして、ハンドル5を軽く持ちながら操作レバー6をハンドル側へ引き寄せて可動測定子3を前方へ移動させ、測定箇所にあてがって操作レバー6を離す。その時のダイヤルゲージ7の値を読み取り、外側Dの測定値を得る。
【0010】
以下、本発明の他の実施形態について説明する。図6は本発明にかかる内側用ハンド測長器31の透視側面図である。
ハンド測長器31は、筐体32と、可動測定子33,固定測定子34,取っ手であるハンドル35,可動測定子33の移動手段である操作レバー36,測定寸法表示手段としてのダイヤルゲージ37とからなる。以下、筐体32のハンドル35が取り付けられている面を上面、測定子が突出している面を下面という。
【0011】
筐体32はアルミ製で長さ方向に複数の貫通孔を有し、略ハニカム構造を呈している。そして、筐体中心の中空部38の一端および略中央に、保持手段であるスライド筒39a,39bがボルト40,40・・にてそれぞれ螺着固定されているとともに、2つのスライド筒39a,39bにロッド41が挿通されている。ロッド41の側面には2本の溝が長手方向に対向して平行に刻設されており、その溝に丁度係合する突起部としてのベアリングがスライド筒39a,39bの内側に配置され、ロッド41は回転移動することなくリニヤに摺動可能となっている。そしてロッド41の後端縁付近(スライド筒39aの反対側・以下同様)に、ドーナツ状のストッパー42がロッド41に環装されているとともに、ストッパー42と筐体後端に嵌合されたエンドキャップ43との間にスプリング44が配置され、これによってロッド41は前方へ付勢され一定圧(例えば5N)で測定可能となっている。
【0012】
そして、上記の如きロッド41に可動測定子33がスライド筒39a,39bの間で固着されている。可動測定子33は筐体下面に設けられた移動溝から筐体下方に突出し、移動可能となっている。また可動測定子33の後方位置で固定測定子34が、下側固定盤46にボルト47にて螺着され筐体底面に固定されており、ボルト47の操作により固定位置を変更することができる。さらに、可動測定子33および固定測定子34の先端近傍外側の相対する位置にそれぞれネジ孔が穿設され、半球形のオーバーボール48を先端に有する測定プラグ49,49を螺着可能となっている。
【0013】
一方、ハンドル35は固定測定子34と同様に、2つの上側固定盤50,50に螺着され筐体上面に取り付けられている。またハンドル35の前方には操作レバー36が軸着されているとともに、その先端がロッド41の前端に押圧されており、操作レバー36をハンドル35側へ引き寄せることによってロッド41を前方へ移動させることができる。したがって、ボルト47および操作レバー36を操作することによって、測定プラグ49,49先端の間隔(測定距離)を所定の範囲、例えば50mm〜200mmの範囲で調整可能となっている。
そして筐体32の先端には、可動測定子33の移動量を表示する公知のダイヤルゲージ37が取り付けられている。
【0014】
次に、上記ハンド測長器1の作用について説明する。ここでは、図7の如き内歯車51の内側dを測定する例について述べる。
まず、外歯車51の歯形にあった径のオーバーボール47を有する測定プラグ49を選定し、可動測定子33および固定測定子34のネジ孔にそれぞれ螺着する。次いで、操作レバー操作前の両測定プラグ間の距離が、測定箇所である外歯車51の内側dより若干広くなるように、ボルト47を操作して固定測定子34の固定位置を決定する。そして、ハンドル35を軽く持ちながら操作レバー36をハンドル側へ引き寄せて可動測定子33を後方へ移動させ、測定箇所にあてがって操作レバー36を離す。その時のダイヤルゲージ37の値を読み取り、内側dの測定値を得る。
【0015】
上記の如き外側用および内側用ハンド測長器は、筐体内に保持手段としての2つのスライド筒が設けられているとともに、可動測定子が固着されたロッドがスライド筒に摺動自在に挿通された構成を有するので、筐体が温度や衝撃等で多少変形しても両測定子にはほとんど影響せず、測定誤差が生じにくい。しかも、ロッドに刻設された溝およびスライド筒内部に配置された突起部としてのベアリングによって可動測定子は左右に回転移動することがないので、筐体下面の移動溝の溝巾は厳密さを要せず製造が容易である上に、可動測定子の移動をスムーズに行うことができる。
また、筐体が略ハニカム構造に形成されているので、原料を軽量なアルミニウムとしても十分な強度が保たれる。加えて、アルミニウムは加工がしやすいため製造コストを抑えることができる。
【0016】
なお、本発明のハンド測長器は上記2つの実施形態に何ら限定されず、筐体の形状・材質,ロッド,保持手段,突起部,可動測定子,固定測定子,測定プラグ,移動手段,ハンドル,測定寸法表示手段等、本発明の趣旨に逸脱しない範囲で適宜変更できる。例えば、ロッドは筐体の内部ではなく筐体の側部に設けることもでき、ロッドを保持する保持手段の設置数・設置部位も任意である。さらに固定測定子およびハンドルの取り付け機構について、実施形態では下側あるいは上側固定盤に螺着して筐体の下面あるいは上面に固定する構成を説明したが、この他、ストッパーを用いる構成等を採用することもできる。操作レバーについては、ハンドルの前方ではなく握り部分に設置して、ハンドルを握りこむことによってロッドを前後に摺動させる構成としてもよい。さらに測定寸法表示手段についても、ダイヤルゲージのみならずデジタルゲージその他公知の変位表示手段を使用でき、その取り付け位置も任意である。
【0017】
【発明の効果】
請求項1に記載の発明によれば、筐体が温度や衝撃等で多少変形しても両測定子にほとんど影響せず、測定誤差の生じにくいハンド測長器が得られる。また筐体下面について厳密な設計を要せず製造が容易である上に、可動測定子の移動をスムーズに行うことができるハンド測長器が得られる。さらに請求項に記載の発明によれば、請求項1の発明の効果に加えて、軽量で使い勝手がよく、かつ加工が容易で製造コストのかからないハンド測長器が得られる。
【図面の簡単な説明】
【図1】外側用ハンド測長器の斜視図である。
【図2】外側用ハンド測長器の透視側面図である。
【図3】図2におけるA−A線断面図である。
【図4】ロッドのスライド機構を示す斜視説明図である。
【図5】外歯車の外側を測定している状態を示す説明図である。
【図6】内側用ハンド測長器の透視側面図である。
【図7】内歯車の内側を測定している状態を示す説明図である。
【図8】従来のハンド測長器の透視側面図およびそのA−A線断面図である。
【符号の説明】
1・・ハンド測長器、2・・筐体、3・・可動測定子、4・・固定測定子、5・・ハンドル、6・・操作レバー、7・・ダイヤルゲージ、8・・中空部、9a,9b・・スライド筒、10・・ボルト、11・・ロッド、12・・溝、13・・ベアリング、14・・ストッパー、15・・スプリング、16・・移動溝、17・・下側固定盤、18・・ボルト、19・・ネジ孔、20・・オーバーボール、21・・測定プラグ、22・・上側固定盤、23・・外歯車、31・・ハンド測長器、32・・筐体、33・・可動測定子、34・・固定測定子、35・・ハンドル、36・・操作レバー、37・・ダイヤルゲージ、38・・中空部、39a,39b・・スライド筒、40・・ボルト、41・・ロッド、42・・ストッパー、43・・エンドキャップ、44・・スプリング、46・・下側固定盤、47・・ボルト、48・・オーバーボール、49・・測定プラグ、50・・上側固定盤、51・・外歯車。
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a hand-held length measuring device.
[0002]
[Prior art]
The measuring method for the outer diameter, inner diameter, groove width, etc. of a mechanical member is generally a method of displaying the distance between the two measuring elements by bringing the movable measuring element and fixed measuring element of the length measuring instrument into contact with the object to be measured. A mechanical hand length measuring device 61 as shown in FIG. 8 is easily used. In this case, the length measuring device 61 is provided with a rod 63 inside a housing 62, and a movable measuring element 64 is movably provided on the rod 63 via a support member 65. The movable measuring element 64 is formed to have approximately the same width as the groove width of the moving groove 66 provided on the lower surface of the casing, and does not rotate and move left and right. Then, the position of the movable probe 64 is moved and measured by operating the operation lever 67, and the measurement dimension is displayed on the dial gauge 68.
[0003]
[Problems to be solved by the invention]
However, in the configuration as described above, since the support member 65 that supports the movable measuring element 64 cannot be made small, the hollow portion 69 in the housing becomes large, and therefore it is difficult to maintain the strength of the housing 62, This was a factor that hindered the weight reduction and cost reduction of long equipment.
Therefore, in view of the above, the present invention aims to provide a lightweight hand length measuring device at a low cost.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention for achieving the above object, there is provided a fixed measuring element fixed to a housing having a moving means for measuring operation and a measuring dimension display means, and a slide along the reference plane of the housing. In a hand length measuring instrument that brings a moving movable probe into contact with the object to be measured and displays a distance between the two probes, the movable probe is supported by the casing so as to be movable in parallel with the reference plane. The rod is moved by operating the moving means, and the movable probe can be moved . The casing is formed in a substantially honeycomb structure having a plurality of through holes in the length direction. Two slide cylinders are fixed in contact with the inner surface of the through hole in the hole, and the rod is supported so as to be movable in parallel through the slide cylinder. A groove parallel to the central axis of the rod is provided on the side surface of the rod. And a bearing that engages with the groove. It is intended to place inside the id tube. Furthermore, in the structure of the invention described in claim 2 , the casing is formed of aluminum in order to reduce the weight.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an outer hand length measuring instrument 1 according to the present invention, and FIG. 2 is a perspective side view thereof. 3 is a cross-sectional view taken along line AA in FIG.
The hand length measuring device 1 includes a housing 2, a movable measuring element 3, a fixed measuring element 4, a handle 5 as a handle, an operation lever as a moving means for the movable measuring element 3, and a dial gauge 7 as a measuring dimension display means. It consists of. Hereinafter, the surface of the housing 2 on which the handle 5 is attached is referred to as the upper surface, and the surface from which the probe protrudes is referred to as the lower surface.
[0006]
The casing 2 is made of aluminum, and has a plurality of through holes in the length direction as shown in FIG. 3, and has a substantially honeycomb structure. The upper part of the hollow portion 8 at the center of the housing is used as a reference surface, and slide cylinders 9a and 9b as holding means are respectively screwed and fixed to the ends and substantially the center by bolts 10, 10,. The rod 11 is inserted through the two slide cylinders 9a and 9b. As shown in FIG. 4, two grooves 12, 12 are engraved in parallel on the side surface of the rod 11 in the longitudinal direction, and a bearing 13 as a protrusion that is just engaged with the grooves 12, 12. , 13... Are arranged inside the slide cylinders 9a, 9b, and the rod 11 can slide linearly without rotating. A donut-shaped stopper 14 is mounted on the rod 11 at a rear position of the slide cylinder 9b (on the opposite side of the slide cylinder 9a, the same applies hereinafter), and a spring 15 is disposed between the slide cylinder 9b and the stopper 14. Thus, the rod 11 is urged rearward and can be measured at a constant pressure (for example, 5 N).
[0007]
The movable measuring element 3 is fixed to the rod 11 as described above between the slide cylinders 9a and 9b. The movable probe 3 protrudes downward from the moving groove 16 provided on the lower surface of the casing and is movable. Further, the fixed measuring element 4 is screwed to the lower fixed platen 17 with a bolt 18 at the rear position of the movable measuring element 3 and fixed to the lower surface of the casing, and the fixing position can be changed by operating the bolt 18. . Furthermore, screw holes 19 and 19 are formed in opposite positions near the front ends of the movable measuring element 3 and the fixed measuring element 4, respectively, and measurement plugs 21 and 21 having hemispherical overballs 20 at the tips can be screwed. It has become.
[0008]
On the other hand, the handle 5 is screwed to the two upper fixed plates 22 and 22 and is attached to the upper surface of the housing, like the fixed measuring element 4. Further, an operating lever 6 is pivotally mounted in front of the handle 5, and its tip is locked to the front end of the rod 11, so that the rod 11 is moved forward by pulling the operating lever 6 toward the handle. Can do. Therefore, by operating the bolt 18 and the operation lever 6, the distance (measurement distance) between the tips of the measurement plugs 21 and 21 can be adjusted within a predetermined range, for example, a range of 0 mm to 150 mm.
A known dial gauge 7 that displays the amount of movement of the movable probe 3 is attached to the tip of the housing 2.
[0009]
Next, the operation of the hand length measuring device 1 will be described. Here, an example of measuring the outside D of the external gear 23 as shown in FIG. 5 will be described.
First, a measurement plug 21 having an overball 20 having a diameter corresponding to the tooth profile of the external gear 23 is selected and screwed into the screw holes 19 and 19 of the movable measuring element 3 and the fixed measuring element 4. Next, the fixing position of the fixed probe 4 is determined by operating the bolt 18 so that the distance between the two measurement plugs before operating the operation lever is slightly narrower than the outside D of the external gear 23 that is the measurement location. Then, while holding the handle 5 lightly, the operation lever 6 is pulled toward the handle to move the movable measuring element 3 forward, and the operation lever 6 is released after being applied to the measurement location. The value of the dial gauge 7 at that time is read, and the measured value of the outside D is obtained.
[0010]
Hereinafter, other embodiments of the present invention will be described. FIG. 6 is a transparent side view of the inner hand length measuring device 31 according to the present invention.
The hand length measuring device 31 includes a housing 32, a movable measuring element 33, a fixed measuring element 34, a handle 35 that is a handle, an operation lever 36 that is a moving means of the movable measuring element 33, and a dial gauge 37 that is a measuring dimension display means. It consists of. Hereinafter, the surface of the housing 32 to which the handle 35 is attached is referred to as the upper surface, and the surface from which the probe protrudes is referred to as the lower surface.
[0011]
The casing 32 is made of aluminum, has a plurality of through holes in the length direction, and has a substantially honeycomb structure. Then, slide cylinders 39a and 39b, which are holding means, are screwed and fixed to bolts 40, 40,... At one end and substantially the center of the hollow portion 38 at the center of the casing, and two slide cylinders 39a and 39b. A rod 41 is inserted through the cable. Two grooves are engraved on the side surface of the rod 41 in parallel with each other in the longitudinal direction, and a bearing as a protrusion that is just engaged with the groove is disposed inside the slide cylinders 39a and 39b. 41 can slide in a linear manner without rotating. A donut-shaped stopper 42 is mounted around the rod 41 in the vicinity of the rear end edge of the rod 41 (on the opposite side of the slide cylinder 39a, the same applies hereinafter), and an end fitted to the stopper 42 and the rear end of the housing. A spring 44 is disposed between the cap 43 and the rod 41 so that the rod 41 is biased forward and can be measured at a constant pressure (for example, 5 N).
[0012]
The movable measuring element 33 is fixed to the rod 41 as described above between the slide cylinders 39a and 39b. The movable measuring element 33 protrudes downward from the moving groove provided on the lower surface of the casing and is movable. In addition, the fixed measuring element 34 is screwed to the lower fixing plate 46 with a bolt 47 at the rear position of the movable measuring element 33 and is fixed to the bottom surface of the casing, and the fixing position can be changed by operating the bolt 47. . Further, screw holes are formed at opposite positions on the outer sides in the vicinity of the distal ends of the movable measuring element 33 and the fixed measuring element 34, and measurement plugs 49, 49 having hemispherical overballs 48 at the distal ends can be screwed. Yes.
[0013]
On the other hand, like the fixed measuring element 34, the handle 35 is screwed to the two upper fixed plates 50 and 50 and attached to the upper surface of the housing. In addition, an operation lever 36 is pivotally mounted in front of the handle 35, and its tip is pressed against the front end of the rod 41. The rod 41 is moved forward by pulling the operation lever 36 toward the handle 35. Can do. Therefore, by operating the bolt 47 and the operation lever 36, the distance (measurement distance) between the tips of the measurement plugs 49, 49 can be adjusted within a predetermined range, for example, a range of 50 mm to 200 mm.
A known dial gauge 37 that displays the amount of movement of the movable probe 33 is attached to the tip of the housing 32.
[0014]
Next, the operation of the hand length measuring device 1 will be described. Here, an example of measuring the inner side d of the internal gear 51 as shown in FIG. 7 will be described.
First, a measurement plug 49 having an overball 47 having a diameter matching the tooth shape of the external gear 51 is selected and screwed into the screw holes of the movable measuring element 33 and the fixed measuring element 34, respectively. Next, the fixing position of the fixed probe 34 is determined by operating the bolt 47 so that the distance between the two measurement plugs before operating the operation lever is slightly wider than the inside d of the external gear 51 that is the measurement location. Then, while holding the handle 35 lightly, the operation lever 36 is pulled toward the handle to move the movable measuring element 33 backward, and the operation lever 36 is released after being applied to the measurement location. The value of the dial gauge 37 at that time is read, and the measured value of the inner side d is obtained.
[0015]
The outer and inner hand length measuring devices as described above are provided with two slide cylinders as holding means in the housing, and a rod to which a movable probe is fixed is slidably inserted into the slide cylinder. Therefore, even if the casing is deformed to some extent due to temperature, impact, etc., both measuring elements are hardly affected and measurement errors are unlikely to occur. Moreover, since the movable probe is not rotated left and right by the groove formed in the rod and the bearing as the protrusion disposed inside the slide cylinder, the groove width of the moving groove on the lower surface of the housing is strictly limited. In addition to easy manufacture, the movable probe can be moved smoothly.
Further, since the casing is formed in a substantially honeycomb structure, sufficient strength can be maintained even if the raw material is light aluminum. In addition, since aluminum is easy to process, manufacturing costs can be reduced.
[0016]
The hand length measuring device of the present invention is not limited to the above two embodiments, and the shape and material of the housing, rod, holding means, protrusion, movable measuring element, fixed measuring element, measuring plug, moving means, The handle, measurement dimension display means, and the like can be changed as appropriate without departing from the spirit of the present invention. For example, Rod may also be provided on the side of the housing rather than the inside of the housing, Installation number and installation site of the holding means for holding the rods is also arbitrary. In addition, in the embodiment, the fixed measuring element and the handle attachment mechanism are described as being fixed to the lower or upper surface of the housing by being screwed to the lower or upper fixing plate. In addition, a configuration using a stopper or the like is employed. You can also About an operation lever, it is good also as a structure which installs in the grip part instead of the front of a handle | steering wheel, and slides a rod back and forth by grasping a handle | steering-wheel. Furthermore, not only the dial gauge but also a digital gauge or other known displacement display means can be used as the measurement dimension display means, and the mounting position thereof is arbitrary.
[0017]
【The invention's effect】
According to the first aspect of the present invention, it is possible to obtain a hand length measuring device that hardly affects both the measuring elements even if the casing is deformed to some extent due to temperature, impact, or the like, and that hardly causes measurement errors. On production without requiring strict design it is easy for the or housing bottom surface, a hand length measuring device which can be moved in the movable measuring element smoothly can be obtained. Furthermore, according to the second aspect of the present invention, in addition to the effect of the first aspect, a hand length measuring device that is lightweight, easy to use, easy to process and inexpensive to manufacture can be obtained.
[Brief description of the drawings]
FIG. 1 is a perspective view of an outer hand length measuring device.
FIG. 2 is a perspective side view of an outer hand length measuring device.
FIG. 3 is a cross-sectional view taken along line AA in FIG.
FIG. 4 is an explanatory perspective view showing a rod sliding mechanism.
FIG. 5 is an explanatory diagram showing a state in which the outside of the external gear is being measured.
FIG. 6 is a perspective side view of the inner hand length measuring device.
FIG. 7 is an explanatory diagram showing a state in which the inside of the internal gear is being measured.
FIG. 8 is a perspective side view of a conventional hand length measuring device and a cross-sectional view taken along line AA of FIG.
[Explanation of symbols]
1 .. Hand length measuring device 2.. Case 3.. Movable measuring element 4.. Fixed measuring element 5 .. Handle, 6 .. Operation lever, 7 .. Dial gauge, 8. , 9a, 9b ··· Slide cylinder, 10 ·· Bolt, 11 ·· Rod, 12 ·· Groove, 13 · Bearing, 14 · Stopper, 15 ·· Spring, 16 ·· Moving groove, 17 ·· Lower side Fixing plate, 18 ... bolt, 19 ... screw hole, 20 ... overball, 21 ... measuring plug, 22 ... upper fixing plate, 23 ... external gear, 31 ... hand length measuring device, 32 ... Housing, 33 .. Movable measuring element, 34 .. Fixed measuring element, 35 .. Handle, 36 .. Operation lever, 37 .. Dial gauge, 38 .. Hollow part, 39 a, 39 b.・ Bolt, 41 ・ ・ Rod, 42 ・ ・ Stopper, 43 ・ ・ End Cap, 44 ... spring, 46 ... lower stationary platen, 47 ... bolt, 48 ... over the ball, 49 ... measuring plug, 50 ... upper fixing plate, 51 ... outer gear.

Claims (2)

測定操作する移動手段と測定寸法表示手段とを具備する筐体に固着した固定測定子と、該筐体の基準面に沿って摺動する可動測定子とを被測定物に接触させ、両測定子間の距離を表示するハンド測長器において、
前記可動測定子が、前記基準面と平行移動可能に前記筐体に支持されたロッドに固着され、前記移動手段の操作によりロッドを移動させて可動測定子を移動可能とし
筐体を長さ方向に複数の貫通孔を有する略ハニカム構造に形成し、前記筐体中心の貫通孔内に2つのスライド筒を前記貫通孔の内面への当接状態で固定して、該スライド筒を介してロッドを平行移動可能に支持し、
ロッドの側面にロッドの中心軸と平行な溝を形成するとともに、該溝に係合するベアリングをスライド筒の内側に配置する
ことを特徴とするハンド測長器。
A fixed measuring element fixed to a casing having a moving means for measuring operation and a measuring dimension display means, and a movable measuring element sliding along the reference plane of the casing are brought into contact with the object to be measured. In the hand measuring device that displays the distance between the children,
The movable probe is fixed to a rod supported by the housing so as to be movable in parallel with the reference plane, and the movable probe can be moved by moving the rod by operating the moving means .
The casing is formed in a substantially honeycomb structure having a plurality of through holes in the length direction, and two slide cylinders are fixed in contact with the inner surface of the through hole in the through hole at the center of the casing, Support the rod through the slide cylinder so that it can move in parallel,
A hand length measuring device, wherein a groove parallel to the central axis of the rod is formed on a side surface of the rod, and a bearing that engages with the groove is disposed inside the slide cylinder .
筐体をアルミニウムで形成した請求項に記載のハンド測長器。The hand length measuring instrument according to claim 1 , wherein the casing is made of aluminum.
JP30601599A 1999-10-27 1999-10-27 Hand measuring device Expired - Lifetime JP3664374B2 (en)

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CN102878886A (en) * 2012-09-24 2013-01-16 常州市双成工具有限公司 Device for measuring axial size of beading in workpiece hole
JP5770763B2 (en) * 2013-02-26 2015-08-26 株式会社サンテック Measuring instrument
CN109238100A (en) * 2018-10-23 2019-01-18 东莞天龙阿克达电子有限公司 A kind of wheel tooth tip internal diameter measuring instrument of internal gear
CN109000542A (en) * 2018-10-23 2018-12-14 东莞天龙阿克达电子有限公司 A kind of wheel tooth socket internal diameter measuring instrument of internal gear
CN112665479B (en) * 2020-12-30 2022-09-20 武汉理工大学 Wheel machine engineering member measuring device
CN113983898A (en) * 2021-11-11 2022-01-28 中国航发贵州黎阳航空动力有限公司 Device for measuring groove width of closed T-shaped narrow ring groove of blisk

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