JPH0237961B2 - HENISOKUTEIKINOSHIIRUSOCHI - Google Patents
HENISOKUTEIKINOSHIIRUSOCHIInfo
- Publication number
- JPH0237961B2 JPH0237961B2 JP1165683A JP1165683A JPH0237961B2 JP H0237961 B2 JPH0237961 B2 JP H0237961B2 JP 1165683 A JP1165683 A JP 1165683A JP 1165683 A JP1165683 A JP 1165683A JP H0237961 B2 JPH0237961 B2 JP H0237961B2
- Authority
- JP
- Japan
- Prior art keywords
- lip
- tip
- sealing device
- displacement measuring
- measuring machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006073 displacement reaction Methods 0.000 claims description 39
- 238000007789 sealing Methods 0.000 claims description 19
- 238000001514 detection method Methods 0.000 claims description 8
- 239000003921 oil Substances 0.000 description 8
- 230000003287 optical effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
- G01D5/34761—Protection devices, e.g. caps; Blowing devices
- G01D5/34769—Sealing means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Description
本発明は、変位測定機のシール装置に係り、特
に、直線型変位測定機に用いるのに好適な、相対
移動が検知される一方の部材に固定される、相対
移動が検知される他方の部材の移動線に沿つて開
口部が形成された中空ケースと、前記他方の部材
の変位を、前記開口部を介して、中空ケース内側
に収容された変位検出機構に伝達するための連結
棒と、前記中空ケースの開口部両側に配置され、
先端部が前記連結棒と突き合わせ接触するように
された、柔軟性を有するリツプ部材とを有する変
位測定機のシール装置の改良に関する。
The present invention relates to a sealing device for a displacement measuring machine, and is particularly suitable for use in a linear displacement measuring machine, and is fixed to one member whose relative movement is detected, and which is fixed to the other member whose relative movement is detected. a hollow case having an opening formed along a line of movement; a connecting rod for transmitting the displacement of the other member to a displacement detection mechanism housed inside the hollow case through the opening; arranged on both sides of the opening of the hollow case,
The present invention relates to an improvement in a sealing device for a displacement measuring machine having a flexible lip member whose tip end is brought into butt contact with the connecting rod.
一般に、物体の長さ等を測定する測定機におい
て、その本体に対する測定子の移動量、コラムに
対するスライダーの移動量等のように、相対移動
する物の移動量を測定する場合、一方にメインス
ケール、他方にインデツクススケールを含む検出
器を固定し、メインスケールと検出器の相対変位
量を、例えば光学的方法や電磁的方法によつて読
取る変位測定機が知られている。
このような変位測定機は、高精度なるがゆえに
その構造も微細であり、所定の精度を維持し、又
使用環境の適応拡大性を高めて実用価値を高める
ためには多くの問題があつた。即ち、例えば、
μmオーダの目盛を有するメインスケールとイン
デツクススケールとを用いた光学式変位測定機に
おいては、両スケール間の隙間をμmオーダに保
持する必要があり、又、節電のため、比較的弱光
源とされること等から、防塵、防滴対策を完全と
しなければならない。
このような目的を達成するものとして、従来か
ら、第１図及び第２図に示す如く、相対移動が検
知される一方の部材、例えば工作機械のベツド１
０に固定される、相対移動が検知される他方の部
材、例えば被加工物或いは工具１２の移動線に沿
つて開口部２０ａが形成された中空ケース２０
と、前記工具１２の変位を、前記開口部２０ａを
介して、中空ケース２０の内側に収容された変位
検出機構２２に伝達するための連結棒２４と、前
記中空ケース２０の開口部２０ａの両側に配置さ
れ、先端部が前記連結棒２４と突き合わせ接触す
るようにされた、柔軟性を有するゴム製のリツプ
部材２６，２８とからなるシール装置が設けられ
ているものがある。
図において、３０は、前記中空ケース２０内の
長手方向に設けられた固定溝３２に一端辺が挿入
され、ゴムロツド３４や接着剤３６等を用いて固
定された、ガラス等からなり、目盛面３０ａに縦
縞状の目盛が形成されたメインスケール、３８
は、前記メインスケール３０の表面上を摺動する
摺動駒４０により、前記メインスケール３０と所
定の位置関係を保持した状態で、前記メインスケ
ール３０の長手方向に移動するようにされたスラ
イダー、４２は、該スライダー３８の前記メイン
スケール目盛面３０ａに対向した面に固定され
た、メインスケール３０と同様な縦縞状の目盛が
形成されたインデツクススケール、４４，４６
は、それぞれ前記メインスケール３０及びインデ
ツクススケール４２を挾んだ状態で前記スライダ
ー３８に固定された、発光素子及び受光素子、４
８は、前記連結棒２４の動きを前記スライダー３
８に伝達するための、例えば線状の片持ばねが用
いられた連結手段である。
前記のような、一対のリツプ部材２６，２８を
用いたシール装置によれば、中空ケース２０の開
口部２０ａを磁気利用の金属帯でシールする装置
や、ブラシを配設した装置に比べて、比較的簡単
な構成により、効果的に塵埃や油滴が侵入するこ
とを防止できるという特徴を有する。
Generally, in a measuring machine that measures the length of an object, when measuring the amount of movement of an object that moves relatively, such as the amount of movement of the measuring head with respect to the main body, the amount of movement of a slider with respect to the column, etc., the main scale is placed on one side. A displacement measuring device is known in which a detector including an index scale is fixed to the other end and the relative displacement between the main scale and the detector is read by, for example, an optical method or an electromagnetic method. Although such displacement measuring machines have high precision, their structures are also minute, and there are many problems in maintaining a certain level of precision, increasing adaptability to the usage environment, and increasing practical value. . That is, for example,
In an optical displacement measuring machine that uses a main scale and an index scale that have graduations on the μm order, it is necessary to maintain the gap between the two scales on the μm order, and in order to save power, a relatively weak light source is used. Therefore, it must be completely dust-proof and drip-proof. To achieve this purpose, as shown in FIGS.
A hollow case 20 in which an opening 20a is formed along the movement line of the other member whose relative movement is detected, such as a workpiece or tool 12, which is fixed at zero.
, a connecting rod 24 for transmitting the displacement of the tool 12 to the displacement detection mechanism 22 housed inside the hollow case 20 via the opening 20a, and both sides of the opening 20a of the hollow case 20. Some devices are provided with a sealing device consisting of flexible rubber lip members 26 and 28, which are disposed at the top of the connecting rod 24 and have their tips brought into butt contact with the connecting rod 24. In the figure, 30 is made of glass or the like, one end of which is inserted into a fixing groove 32 provided in the longitudinal direction in the hollow case 20, and fixed using a rubber rod 34, adhesive 36, etc., and a scale surface 30a. Main scale with vertical striped graduations, 38
is a slider configured to move in the longitudinal direction of the main scale 30 while maintaining a predetermined positional relationship with the main scale 30 by a sliding piece 40 that slides on the surface of the main scale 30; Reference numeral 42 denotes an index scale 44, 46, which is fixed to the surface of the slider 38 facing the main scale graduation surface 30a and has vertical striped graduations similar to the main scale 30.
A light emitting element and a light receiving element 4 are fixed to the slider 38 while sandwiching the main scale 30 and index scale 42, respectively.
8, the movement of the connecting rod 24 is controlled by the slider 3.
For example, a linear cantilever spring is used as the coupling means for transmitting the signal to the terminal 8. According to the sealing device using the pair of lip members 26 and 28 as described above, compared to a device that seals the opening 20a of the hollow case 20 with a magnetic metal band or a device provided with a brush, It has a feature of being able to effectively prevent dust and oil droplets from entering with a relatively simple configuration.
しかしながら従来のリツプ部材２６，２８は、
相対移動のための連結棒２４の貫通性及び横行性
から、測定精度に影響を与える摺動抵抗の軽減化
を第一に図るため、リツプ部材２６，２８が、同
一形状で対称配置されていたため、近年、変位測
定機の応用範囲が広がるとともに、例えば数値制
御工作機械のフイードバツク信号発生器として用
いられたような場合には、一対のリツプ部材２
６，２８の合わせ目から侵入する機械油の侵入を
阻止することができないという問題点を有してい
た。
本発明は、前記従来の問題点を解消するべくな
されたもので、特に防滴性能が高い変位測定機の
シール装置を提供することを目的とする。
However, conventional lip members 26, 28
Due to the penetrating and transverse nature of the connecting rod 24 for relative movement, the lip members 26 and 28 were arranged symmetrically with the same shape in order to reduce the sliding resistance that affects measurement accuracy. In recent years, as the range of applications of displacement measuring instruments has expanded, for example, when used as a feedback signal generator for numerically controlled machine tools, a pair of lip members 2 are used.
There was a problem in that it was not possible to prevent machine oil from entering through the joints 6 and 28. The present invention has been made to solve the above-mentioned conventional problems, and an object of the present invention is to provide a sealing device for a displacement measuring machine that has particularly high drip-proof performance.
本発明は、相対移動が検知される一方の部材に
固定さる、相対移動が検知される他方の部材の移
動線に沿つて開口部が形成された中空ケースと、
前記他方の部材の変位を、前記開口部を介して、
中空ケース内側に収容された変位検出機構に伝達
するための連結棒と、前記中空ケースの開口部両
側に配置され、先端部が前記連結棒と突き合わせ
接触するようにされた、柔軟性を有するリツプ部
材とを有する変位測定機のシール装置において、
前記リツプ部材の先端位置に差をつけ、該リツプ
部材を、相互に位置交換できるような状態で、前
記中空ケースに取付けることにより、液滴発生側
に配置されるリツプ部材の先端を、反対側に配置
されるリツプ部材の先端より、突出可能として、
前記目的を達成したものである。
又、前記リツプ部材の一方の幅を、他方の幅よ
り大とすることにより、リツプ部材の先端位置に
差をつけるようにしたものである。
或いは、前記リツプ部材の一方の先端部に、そ
の基端部より軟弱なカバー部材を付加することに
より、リツプ部材の先端位置に差をつけるように
したものである。
更に、前記カバー部材の先端が、前記連結棒の
側方にまわり込むようにして、防滴性能を更に高
めたものである。
又、前記リツプ部材の一方の取付位置を、他方
の取付位置とずらすことにより、リツプ部材の先
端位置に差をつけるようにしたものである。
或いは、前記リツプ部材をベース部材に取付
け、該ベース部材をるようにして、現場における
取付け姿勢の変更を容易としたものである。
The present invention provides a hollow case that is fixed to one member whose relative movement is detected and has an opening formed along a movement line of the other member whose relative movement is detected;
The displacement of the other member is caused through the opening,
A connecting rod for transmitting data to a displacement detection mechanism housed inside a hollow case; and a flexible lip arranged on both sides of the opening of the hollow case, the tip of which is brought into butt contact with the connecting rod. In a sealing device for a displacement measuring machine having a member,
By attaching the lip members to the hollow case in such a manner that the tip positions of the lip members are different and the lip members can be exchanged with each other, the tips of the lip members placed on the droplet generation side can be moved to the opposite side. The lip member can be protruded from the tip of the lip member disposed in the
The above objective has been achieved. Further, by making one width of the lip member larger than the other width, the tip positions of the lip members are made to differ. Alternatively, a cover member that is softer than the proximal end is added to one of the distal ends of the lip member, thereby making a difference in the position of the distal ends of the lip members. Furthermore, the tip of the cover member wraps around the side of the connecting rod to further improve drip-proof performance. Further, by shifting the mounting position of one of the lip members from the other mounting position, the tip positions of the lip members are made to differ. Alternatively, the lip member may be attached to a base member, and the base member may be rotated so that the attachment posture can be easily changed at the site.
以下図面を参照して、本発明が採用された、直
線型変位測定機のシール装置の実施例を詳細に説
明する。
本発明の第１実施例は、第３図に示す如く、前
記従来例と同様の、中空ケース２０と、連結棒２
４と、リツプ部材２６，２８とを有する直線型変
位測定機のシール装置において、前記リツプ部材
の一方２６の幅を、他方２８の幅より大とするこ
とにより、リツプ部材の先端位置に差をつけ、油
滴発生側、例えば前記連結棒２４の上側に配置さ
れるリツプ部材２６の先端が、連結棒２４の下側
に配置されるリツプ部材２８の先端より、突出す
るようにしたものである。
このようにすれば、中空ケース２０の上方から
降りかかる油滴は、リツプ部材２６，２８の合わ
せ目に至る前に下方に落下することになり、油滴
が中空ケース２０の内側に侵入することが防止さ
れる。
更に、前記リツプ部材２６，２８を中空ケース
２０に対して着脱自在とされたベース５０，５２
に固定し、相互に位置交換できるような状態とし
ておけば、中空ケース２０の取付け姿勢に応じ
て、リツプ部材２６，２８の位置を変更し、常に
リツプ部材２６が油滴発生側に位置するように取
付けることができる。
次に、本発明の第２実施例を詳細に説明する。
本実施例は、第４図及び第５図に示す如く、前
記従来例と同様の、中空ケース２０と、連結棒２
４と、リツプ部材２６，２８とを有する直線型変
位測定機のシール装置において、前記リツプ部材
の一方２６の先端部に、その基端部より軟弱なカ
バー部材５６を付加することにより、リツプ部材
の先端位置に差をつけ、油滴発生側、例えば前記
連結棒２４の上側に配置されるリツプ部材２６の
先端が、連結棒２４の下側に配置されるリツプ部
材２８の先端より、突出するようにしたものであ
る。
前記カバー部材５６の先端は、前記連結棒２４
の側方にまわり込むようにされている。
本実施例によれば、カバー部材５６により、油
滴の侵入が確実に防止される。この際に、カバー
部材５６の材質が、リツプ部材の基端部より軟弱
とされているので、摺動抵抗が著しく増大するこ
ともない。
本実施例においても、前記第１実施例と同様
に、前記リツプ部材２６，２８を、相互に位置交
換できるような状態で、前記中空ケース２０に取
付けることによつて、油滴発生方向の変化に容易
に対処できる。
次に、本発明の第３実施例を詳細に説明する。
本実施例は、第６図に示す如く、前記従来例と
同様の、中空ケース２０と、連結棒２４と、リツ
プ部材２６，２８とを有する直線型変位測定機の
シール装置において、前記リツプ部材の一方の取
付位置を、他方の取付位置とずらすことにより、
リツプ部材の先端位置に差をつけ、油滴発生側、
例えば前記連結棒２４の上側に配置されるリツプ
部材２６の先端が、連結棒２４の下側に配置され
るリツプ部材２８の先端より、突出するようにし
たものである。
本実施例においては、従来例と略同一の摺動抵
抗により、防滴性能を得ることができる。
尚前記実施例においては、いずれも、本発明が
光学式変位検出機構を備えた直線型変位測定機に
適用されていたが、本発明の適用範囲はこれに限
定されず、電磁式変位検出機構を備えた直線型変
位測定機等、他の変位測定機にも同様に適用でき
ることは明らかである。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a sealing device for a linear displacement measuring machine to which the present invention is applied will be described in detail with reference to the drawings. As shown in FIG. 3, the first embodiment of the present invention has a hollow case 20 and a connecting rod 2 similar to the conventional example.
4 and lip members 26 and 28, the width of one of the lip members 26 is made larger than the width of the other 28, thereby creating a difference in the tip position of the lip members. The tip of the lip member 26 disposed on the oil drop generation side, for example, above the connecting rod 24, protrudes from the tip of the lip member 28 disposed below the connecting rod 24. . In this way, oil droplets falling from above the hollow case 20 will fall downward before reaching the seam between the lip members 26 and 28, and the oil droplets will be prevented from entering the inside of the hollow case 20. Prevented. Furthermore, bases 50 and 52 are provided which allow the lip members 26 and 28 to be detachably attached to the hollow case 20.
If the lip members 26 and 28 are fixed in a state where they can be exchanged with each other, the positions of the lip members 26 and 28 can be changed depending on the mounting orientation of the hollow case 20, so that the lip member 26 is always located on the side where oil droplets are generated. Can be installed on. Next, a second embodiment of the present invention will be described in detail. As shown in FIGS. 4 and 5, this embodiment has a hollow case 20 and a connecting rod 2 similar to the conventional example.
4, and lip members 26 and 28, by adding a cover member 56 to the distal end of one of the lip members 26, which is softer than the proximal end, the lip member The tips of the lip members 26 arranged on the oil drop generation side, for example, above the connecting rod 24, protrude from the tips of the lip members 28 placed below the connecting rod 24. This is how it was done. The tip of the cover member 56 is connected to the connecting rod 24
It is designed to wrap around the sides of the According to this embodiment, the cover member 56 reliably prevents oil droplets from entering. At this time, since the material of the cover member 56 is softer than the base end portion of the lip member, the sliding resistance does not increase significantly. In this embodiment, as in the first embodiment, the lip members 26 and 28 are attached to the hollow case 20 in such a manner that they can be exchanged with each other, thereby changing the direction in which oil droplets are generated. can be easily dealt with. Next, a third embodiment of the present invention will be described in detail. As shown in FIG. 6, this embodiment is a sealing device for a linear displacement measuring machine having a hollow case 20, a connecting rod 24, and lip members 26, 28, similar to the conventional example. By shifting one mounting position from the other,
Make a difference in the tip position of the lip member, and
For example, the tip of the lip member 26 disposed above the connecting rod 24 protrudes from the tip of the lip member 28 disposed below the connecting rod 24. In this embodiment, drip-proof performance can be obtained with substantially the same sliding resistance as in the conventional example. In each of the above embodiments, the present invention was applied to a linear displacement measuring machine equipped with an optical displacement detection mechanism, but the scope of application of the present invention is not limited to this, and It is clear that the present invention can be similarly applied to other displacement measuring machines such as a linear displacement measuring machine equipped with a linear displacement measuring machine.
以上説明した通り、本発明によれば、特に防滴
性能に優れたシール装置を得ることができるとい
う優れた効果を有する。
As explained above, according to the present invention, it is possible to obtain a sealing device particularly excellent in drip-proof performance.
第１図は、従来のシール装置が採用された、光
学式変位検出機構を備えた直線型変位測定機の構
成を示す断面図、第２図は、第１図の−線に
沿う断面図、第３図は、本発明に係る変位測定機
のシール装置が採用された、光学式変位検出機構
を備えた直線型変位測定機の第１実施例の要部構
成を示す断面図、第４図は、同じく第２実施例の
要部構成を示す断面図、第５図は、第４図の−
線に沿う断面図、第６図は、本発明に係る変位
測定機のシール装置の第３実施例の要部構成を示
す断面図である。
２０……中空ケース、２０ａ……開口部、２２
……変位検出機構、２４……連結棒、２６，２８
……リツプ部材、５０，５２……ベース、５６…
…カバー部材。
FIG. 1 is a cross-sectional view showing the configuration of a linear displacement measuring machine equipped with an optical displacement detection mechanism that employs a conventional sealing device, and FIG. 2 is a cross-sectional view taken along the - line in FIG. FIG. 3 is a cross-sectional view showing the main part configuration of a first embodiment of a linear displacement measuring machine equipped with an optical displacement detection mechanism, in which the sealing device of the displacement measuring machine according to the present invention is adopted, and FIG. 5 is a cross-sectional view showing the main structure of the second embodiment, and FIG.
FIG. 6 is a cross-sectional view taken along a line showing the configuration of a main part of a third embodiment of a sealing device for a displacement measuring machine according to the present invention. 20...Hollow case, 20a...Opening, 22
... Displacement detection mechanism, 24 ... Connecting rod, 26, 28
...Rip member, 50, 52...Base, 56...
...Cover member.
Claims (1)
る、相対移動が検知される他方の部材の移動線に
沿つて開口部が形成された中空ケースと、前記他
方の部材の変位を、前記開口部を介して、中空ケ
ース内側に収容された変位検出機構に伝達するた
めの連結棒と、前記中空ケースの開口部両側に配
置され、先端部が前記連結棒と突き合わせ接触す
るようにされた、柔軟性を有するリツプ部材とを
有する変位測定機のシール装置において、 前記リツプ部材の先端位置に差をつけ、 該リツプ部材を、相互に位置交換できるような
状態で、前記中空ケースに取付けることにより、 液滴発生側に配置されるリツプ部材の先端を、
反対側に配置されるリツプ部材の先端より、突出
可能としたことを特徴とする変位測定機のシール
装置。 ２ 前記リツプ部材の一方の幅を、他方の幅より
大とすることにより、リツプ部材の先端位置に差
がつけられている特許請求の範囲第１項に記載の
変位測定機のシール装置。 ３ 前記リツプ部材の一方の先端部に、その基端
部より軟弱なカバー部材を付加することにより、
リツプ部材の先端位置に差がつけられている特許
請求の範囲第１項に記載の変位測定機のシール装
置。 ４ 前記カバー部材の先端が、前記連結棒の側方
にまわり込むようにされている特許請求の範囲第
３項に記載の変位測定機のシール装置。 ５ 前記リツプ部材の一方の取付位置を、他方の
取付位置とずらすことにより、リツプ部材の先端
位置に差がつけられている特許請求の範囲第１項
に記載の変位測定機のシール装置。 ６ 前記リツプ部材がベース部材に取付けられ、
該ベース部材が、相互に位置交換できるような状
態で、前記中空ケースに取付けられている特許請
求の範囲第１項乃至第３項、第５項のいずれか一
項に記載の変位測定機のシール装置。[Scope of Claims] 1. A hollow case fixed to one member whose relative movement is detected and having an opening formed along a movement line of the other member whose relative movement is detected, and said other member. a connecting rod for transmitting the displacement of the object through the opening to a displacement detection mechanism housed inside the hollow case; and a connecting rod disposed on both sides of the opening of the hollow case, the tip of which is in butt contact with the connecting rod. In the sealing device for a displacement measuring machine having a flexible lip member, the tip positions of the lip members are differentiated, and the lip members are arranged so as to be able to be exchanged with each other. By attaching it to the hollow case, the tip of the lip member placed on the droplet generation side can be
A sealing device for a displacement measuring machine, characterized in that it can protrude from the tip of a lip member disposed on the opposite side. 2. The sealing device for a displacement measuring machine according to claim 1, wherein the width of one side of the lip member is made larger than the width of the other lip member, so that the tip positions of the lip members are differentiated. 3. By adding a cover member that is softer than the base end to one tip of the lip member,
A sealing device for a displacement measuring machine according to claim 1, wherein the tip positions of the lip members are different. 4. The sealing device for a displacement measuring machine according to claim 3, wherein the tip of the cover member is configured to wrap around the side of the connecting rod. 5. The sealing device for a displacement measuring machine according to claim 1, wherein the tip positions of the lip members are differentiated by shifting the mounting position of one of the lip members from the other mounting position. 6 the lip member is attached to the base member;
The displacement measuring device according to any one of claims 1 to 3 and 5, wherein the base member is attached to the hollow case in such a manner that the base members can be exchanged with each other. sealing device.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1165683A JPH0237961B2 (en) | 1983-01-27 | 1983-01-27 | HENISOKUTEIKINOSHIIRUSOCHI |
| US06/572,320 US4500097A (en) | 1983-01-27 | 1984-01-20 | Seal device in displacement measuring instrument |
| DE19843402344 DE3402344A1 (en) | 1983-01-27 | 1984-01-24 | SEALING DEVICE IN A DISPLACEMENT MEASURING INSTRUMENT |
| GB08401930A GB2134262B (en) | 1983-01-27 | 1984-01-25 | Seal device in displacement measuring instrument |
| GB08601146A GB2167863B (en) | 1983-01-27 | 1986-01-17 | Seal device in displacement measuring instrument |
| GB08601147A GB2167560B (en) | 1983-01-27 | 1986-01-17 | Seal device in displacement measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1165683A JPH0237961B2 (en) | 1983-01-27 | 1983-01-27 | HENISOKUTEIKINOSHIIRUSOCHI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59137810A JPS59137810A (en) | 1984-08-08 |
| JPH0237961B2 true JPH0237961B2 (en) | 1990-08-28 |
Family
ID=11784006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1165683A Expired - Lifetime JPH0237961B2 (en) | 1983-01-27 | 1983-01-27 | HENISOKUTEIKINOSHIIRUSOCHI |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0237961B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4210094B2 (en) * | 2002-10-08 | 2009-01-14 | ソニーマニュファクチュアリングシステムズ株式会社 | Scale equipment |
-
1983
- 1983-01-27 JP JP1165683A patent/JPH0237961B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59137810A (en) | 1984-08-08 |
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