JP3681820B2 - Surveyor with battery pack - Google Patents

Surveyor with battery pack Download PDF

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Publication number
JP3681820B2
JP3681820B2 JP15659696A JP15659696A JP3681820B2 JP 3681820 B2 JP3681820 B2 JP 3681820B2 JP 15659696 A JP15659696 A JP 15659696A JP 15659696 A JP15659696 A JP 15659696A JP 3681820 B2 JP3681820 B2 JP 3681820B2
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JP
Japan
Prior art keywords
battery pack
surveying instrument
battery
main body
side cover
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
Application number
JP15659696A
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Japanese (ja)
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JPH102738A (en
Inventor
協司 中村
誠 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nikon Corp
Original Assignee
Nikon Corp
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Filing date
Publication date
Application filed by Nikon Corp filed Critical Nikon Corp
Priority to JP15659696A priority Critical patent/JP3681820B2/en
Publication of JPH102738A publication Critical patent/JPH102738A/en
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Publication of JP3681820B2 publication Critical patent/JP3681820B2/en
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Description

【０００１】
【発明の属する技術分野】
本発明は、バッテリーパックを備える測量機の防水機構に関するものである。
【０００２】
【従来の技術】
従来、測量機が内蔵する、例えば目盛照明用ＬＥＤ等の電気装置や、例えば演算装置、角度読み取り用エンコーダ等の電子機器で用いる電源は、測量機本体に取り付けられた、充電可能な２次電池としてのＮｉ−Ｃｄ（ニッケル−カドミウム）電池を用いたバッテリーパックから供給していた。この場合、Ｎｉ−Ｃｄ電池は、充電時の過充電によるガス発生がないので、バッテリーパックにガス抜き穴は設けられていなかった。
【０００３】
【発明が解決しようとする課題】
近年、測量機の野外での使用可能時間を延ばす要求が高まってきた。この為、２次電池も、容量が大きい電池、例えばＮｉ−Ｈ（ニッケル−水素）電池が使用される。しかしながら、Ｎｉ−Ｈ電池は、充電時にガスが発生するので、バッテリーパック内部に発生したガスが溜まるという問題が発生する。
【０００４】
そこで、バッテリーパックに、発生したガスを逃がすガス抜き穴を設けているが、測量機は、野外で使用される為、雨や埃がバッテリーパック内に入ってしまい、導通不良、バッテリーパックの損傷等の問題を引き起こす。
そこで本発明は、測量機から取り外した充電時には、発生したガスを逃がすことができると共に、測量機本体に取付けた際には、雨や埃が侵入しないバッテリーパックを備えた測量機を提案する事を目的としている。
【０００５】
【課題を解決するための手段】
上記問題点の解決の為に、本発明では、測量機本体（１）の側面カバー（３）とバッテリーパック（２）との間にシール部材（８）を介在させてバッテリーパック（２）を取り付ける様にした。
シール部材（８）によってガス抜き穴（９）が塞がれると共に、電気接点（６、７）が密封され、雨や埃の侵入が防止される。
【０００６】
【発明の実施の形態】
図１は、本発明の一実施形態の正面図、図２は、図１の要部の縦断面図、図３は、図２のＡ矢視図、図４は、図２のＢ矢視図である。
図１において、Ｎｉ−Ｈ電池１０が内蔵されたバッテリーパック２は、測量機本体１の側面カバー３に着脱自在に取り付けられている。即ち、図２において、バッテリーパック２はバッテリーカバー４の下端に設けられた爪４ａが側面カバー３の溝３ａによって保持されている。そして、バッテリーパック２の上端に設けられたロック機構の開閉によって、バッテリーパック２が着脱される。ロック機構の着脱ボタン５がバネ５ａで常に上方に押し上げられ、着脱ボタンの突起部５ｂが側面カバー３の上端に設けられたフック３ａに係止され、バッテリーパック２が測量機本体１の側面カバー３に取り付けられている。
【０００７】
この時、バネ６ａによって側面カバー３から突き出された本体側電気接点６と、バッテリーパック２の側面カバー３に対向する側面４ｂに設けられたバッテリー側電気接点７とが接触し、これらの接点６、７を通じて電力が測量機本体１に供給される。
着脱ボタン５を押し下げると、突起部５ｂがフック３ａから開放され、バッテリーパック２を測量機本体１の側面カバー３から取り外す事ができる。バッテリーパック２の取り外しは、消耗したバッテリーパック２のＮｉ−Ｈ電池を充電したり、測量作業中に消耗したバッテリーパック２を予備のバッテリーパックを交換したりするために行われる。
【０００８】
バッテリーパック２の、測量機本体１の側面カバー３に対向する側面４ｂには、バッテリーの充電時に発生する水素ガスを逃がす、ガス抜き穴９が設けられている。本実施形態では、Ｎｉ−Ｈ電池１０の配置及び発生する水素ガスの量等を考慮して、図３に示した１０箇所に設けられている。
再度、バッテリーパック２が測量機本体１の側面カバー３に取り付けられた状態を示す図２を参照して、バッテリーパック２と側面カバー３との間には、ガス抜き穴９の位置にガス抜き穴９を充分に覆い隠す大きさのゴムスポンジ８Ａが設けられると共に、電気接点６、７の位置に電気接点６、７を取り囲む形状のゴムスポンジ８Ｂが設けられている。ゴムスポンジ８Ａ、８Ｂは、より多くのつぶし代を確保するため、及びプラスチック部品であるバッテリーカバー２及び側面カバー３の、ゴムスポンジ８Ａ、８Ｂがつぶされた時の変形を防ぐため、並びにゴムスポンジ８Ａ、８Ｂを伝う外部からの水の染込みを防ぐために、硬度が低い独立発泡のゴムスポンジとすることが好ましい。独立発泡のゴムスポンジはゴムスポンジ内部の空洞が互いに独立しているので、外部からの水の侵入を防止する効果が大きい。また、これらのゴムスポンジ８Ａ、８Ｂは、測量機本体１の側面カバー３に設けることが好ましい。図４にその様子を示した。
【０００９】
前記構成により、バッテリーパック２を測量機本体１の側面カバー３に取り付けて測量機１を使用するに際し、ガス抜き穴９からの水・埃の浸入は、ゴムスポンジ８Ａ、８Ｂによって防止される。
なお、本実施形態では、シール部材としてゴムスポンジを用いたが、本発明は、これに限定されるものではなく、例えば薄肉のフランジを有するゴム部材などの弾性体とすることもできる。
【００１０】
【発明の効果】
上記の如く、本発明によれば、測量機本体から取り外した充電時には発生したガスを逃がすことができると共に、測量機に取り付けた際には、雨や埃が侵入しないバッテリーパックを備えた測量機とする事が出来る。
【図面の簡単な説明】
【図１】本発明の一実施形態としての測量機の正面図。
【図２】図１の要部を示す縦断面図。
【図３】図２のＡ矢視図。
【図４】図２のＢ矢視図。
【符号の説明】
１：測量機本体
２：バッテリーパック
３：側面カバー
４：バッテリーカバー
５：着脱ボタン
６：本体側電気接点
７：バッテリー側電気接点
８Ａ、８Ｂ：ゴムスポンジ
９：ガス抜き穴
１０：Ｎｉ−Ｈ電池[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof mechanism for a surveying instrument including a battery pack.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a rechargeable secondary battery attached to a main body of a surveying instrument is a power source used in an electrical device such as a scale illumination LED or an electronic device such as an arithmetic unit or an angle reading encoder incorporated in a surveying instrument. As a Ni-Cd (nickel-cadmium) battery. In this case, since the Ni-Cd battery does not generate gas due to overcharging during charging, the battery pack was not provided with a gas vent hole.
[0003]
[Problems to be solved by the invention]
In recent years, there has been an increasing demand for extending the usable time of surveying instruments outdoors. For this reason, as the secondary battery, a battery having a large capacity, for example, a Ni-H (nickel-hydrogen) battery is used. However, since the Ni—H battery generates gas during charging, there is a problem that the gas generated inside the battery pack accumulates.
[0004]
Therefore, the battery pack is provided with a vent hole to release the generated gas, but since the surveying instrument is used outdoors, rain and dust will enter the battery pack, causing poor continuity and damage to the battery pack. Cause problems.
Therefore, the present invention proposes a surveying instrument equipped with a battery pack that can release the generated gas during charging after being removed from the surveying instrument and that does not allow rain or dust to enter when it is attached to the surveying instrument body. It is an object.
[0005]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, the battery pack (2) is disposed by interposing a seal member (8) between the side cover (3) of the surveying instrument body (1) and the battery pack (2). I tried to attach it.
The gas vent hole (9) is closed by the seal member (8), and the electrical contacts (6, 7) are sealed to prevent rain and dust from entering.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
1 is a front view of an embodiment of the present invention, FIG. 2 is a longitudinal cross-sectional view of the main part of FIG. 1, FIG. 3 is a view taken along an arrow A in FIG. 2, and FIG. FIG.
In FIG. 1, a battery pack 2 incorporating a Ni—H battery 10 is detachably attached to a side cover 3 of the surveying instrument main body 1. That is, in FIG. 2, the battery pack 2 has a claw 4 a provided at the lower end of the battery cover 4 held by the groove 3 a of the side cover 3. The battery pack 2 is attached / detached by opening / closing a lock mechanism provided at the upper end of the battery pack 2. The detachable button 5 of the lock mechanism is always pushed upward by the spring 5a, the protrusion 5b of the detachable button is locked to the hook 3a provided at the upper end of the side cover 3, and the battery pack 2 is attached to the side cover of the surveying instrument main body 1. 3 is attached.
[0007]
At this time, the main body side electrical contact 6 protruding from the side cover 3 by the spring 6a and the battery side electrical contact 7 provided on the side surface 4b facing the side cover 3 of the battery pack 2 come into contact with each other. , 7 is used to supply power to the surveying instrument main body 1.
When the attach / detach button 5 is depressed, the protrusion 5b is released from the hook 3a, and the battery pack 2 can be removed from the side cover 3 of the surveying instrument main body 1. The removal of the battery pack 2 is performed in order to charge the Ni-H battery of the consumed battery pack 2 or to replace the spare battery pack with the battery pack 2 consumed during the surveying work.
[0008]
A side surface 4b of the battery pack 2 facing the side surface cover 3 of the surveying instrument main body 1 is provided with a vent hole 9 through which hydrogen gas generated during battery charging is released. In the present embodiment, in consideration of the arrangement of the Ni—H battery 10 and the amount of generated hydrogen gas, the battery is provided at 10 locations shown in FIG. 3.
Referring again to FIG. 2 showing a state in which the battery pack 2 is attached to the side cover 3 of the surveying instrument main body 1, the gas venting hole 9 is degassed between the battery pack 2 and the side cover 3. A rubber sponge 8A that sufficiently covers the hole 9 is provided, and a rubber sponge 8B that surrounds the electrical contacts 6 and 7 is provided at the position of the electrical contacts 6 and 7. The rubber sponges 8A and 8B are used for securing more crushing allowance, and for preventing deformation of the battery cover 2 and the side cover 3 which are plastic parts when the rubber sponges 8A and 8B are crushed, and the rubber sponges. In order to prevent infiltration of water from the outside through 8A and 8B, it is preferable to use an independently foamed rubber sponge with low hardness. The independent foamed rubber sponge has a great effect of preventing water from entering from the outside because the cavities inside the rubber sponge are independent of each other. The rubber sponges 8A and 8B are preferably provided on the side cover 3 of the surveying instrument main body 1. This is shown in FIG.
[0009]
With the above configuration, when the battery pack 2 is attached to the side cover 3 of the surveying instrument main body 1 and the surveying instrument 1 is used, the entry of water and dust from the gas vent holes 9 is prevented by the rubber sponges 8A and 8B.
In this embodiment, a rubber sponge is used as the seal member. However, the present invention is not limited to this, and an elastic body such as a rubber member having a thin flange can be used.
[0010]
【The invention's effect】
As described above, according to the present invention, the gas generated at the time of charging removed from the main body of the surveying instrument can be released, and when installed in the surveying instrument, the surveying instrument having a battery pack that does not allow rain or dust to enter. Can be.
[Brief description of the drawings]
FIG. 1 is a front view of a surveying instrument as one embodiment of the present invention.
FIG. 2 is a longitudinal sectional view showing the main part of FIG.
FIG. 3 is a view taken along arrow A in FIG. 2;
4 is a view taken in the direction of arrow B in FIG. 2;
[Explanation of symbols]
1: Surveying instrument main body 2: Battery pack 3: Side cover 4: Battery cover 5: Removable button 6: Main body side electrical contact 7: Battery side electric contact 8A, 8B: Rubber sponge 9: Gas vent hole 10: Ni-H battery

Claims (2)

バッテリーパックが本体に着脱自在に設けられた測量機において、
前記バッテリーパックにガス抜き穴を設けると共に、前記バッテリーパックと前記測量機
本体との間に、前記バッテリーパックを測量機本体へ装着した際、前記ガス抜き穴を塞ぐ
シール部材を測量機本体の側面カバーに設けたことを特徴とする測量機。In a surveying instrument in which the battery pack is detachably attached to the main body,
A gas vent hole is provided in the battery pack, and when the battery pack is attached to the surveying instrument main body between the battery pack and the surveying instrument main body, a sealing member for closing the gas venting hole is provided on a side surface of the surveying instrument main body. A surveying instrument that is provided on the cover . 請求項１に記載の測量機において、
前記シール部材は、独立発泡の弾性体とした事を特徴とする測量機。The surveying instrument according to claim 1,
The surveying instrument is characterized in that the sealing member is an independent foamed elastic body.
JP15659696A 1996-06-18 1996-06-18 Surveyor with battery pack Expired - Lifetime JP3681820B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15659696A JP3681820B2 (en) 1996-06-18 1996-06-18 Surveyor with battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15659696A JP3681820B2 (en) 1996-06-18 1996-06-18 Surveyor with battery pack

Publications (2)

Publication Number Publication Date
JPH102738A JPH102738A (en) 1998-01-06
JP3681820B2 true JP3681820B2 (en) 2005-08-10

Family

ID=15631221

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15659696A Expired - Lifetime JP3681820B2 (en) 1996-06-18 1996-06-18 Surveyor with battery pack

Country Status (1)

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JP (1) JP3681820B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6442929B2 (en) * 2014-08-11 2018-12-26 ▲隆▼夫 鈴木 Laser distance meter fixing device for angle measuring machine
JP7224991B2 (en) * 2019-03-27 2023-02-20 株式会社トプコン Power supply unit mounting structure and surveying equipment

Also Published As

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JPH102738A (en) 1998-01-06

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