JP4687407B2 - Electronics - Google Patents

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JP4687407B2
JP4687407B2 JP2005326922A JP2005326922A JP4687407B2 JP 4687407 B2 JP4687407 B2 JP 4687407B2 JP 2005326922 A JP2005326922 A JP 2005326922A JP 2005326922 A JP2005326922 A JP 2005326922A JP 4687407 B2 JP4687407 B2 JP 4687407B2
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case
protrusion
latch piece
unit
inner unit
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JP2007134538A (en
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孝幸 濱田
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Yokogawa Electric Corp
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Description

本発明は、電子機器に関し、詳しくは、電子回路部品が組み込まれた内器を引き出し可能にケースに収納するように構成された電子機器の内器とケースとの係合に関するものである。   The present invention relates to an electronic device, and more particularly to engagement between an internal unit of an electronic device configured to accommodate an internal unit in which an electronic circuit component is incorporated in a case so that the internal unit can be pulled out.

温度調節計や電力監視計などの工業用計器としての電子機器には、電子回路部品が組み込まれた内器を引き出し可能にケースに収納するように構成されたものがある(特許文献１参照)。   2. Description of the Related Art Some electronic devices as industrial instruments such as a temperature controller and a power monitor are configured so that an internal device in which an electronic circuit component is incorporated is retractably housed in a case (see Patent Document 1). .

このような電子機器では、内器をケース内に収納するように挿入したとき、内器がケース内に設計に基づき予め設定された所定の位置で停止し、ケースと着脱可能に係合する必要がある。   In such an electronic device, when the internal unit is inserted so as to be stored in the case, the internal unit needs to stop at a predetermined position based on the design in the case and be detachably engaged with the case. There is.

図４は従来の内器引き出し形の電子機器の一例を示す構成図であり、(ａ)は平面図、(ｂ)は側面図である。内器１０は図示しない電子回路部品が組み込まれたものであって、この内器１０の両側には側板１１，１２が設けられている。これら側板１１，１２のほぼ中央部分には、ラッチ片１３，１４が設けられている。これらラッチ片１３，１４は、側板１１，１２の厚さ方向に変位可能なように３辺をコ字形に切り抜くことにより形成されている。さらにこれらラッチ片１３，１４のケース２０内壁との対向面のほぼ中央部分には、ケース２０の側面に設けられた係合穴２１，２２(２２は図示せず)に嵌め合うように突起体１５，１６が設けられている。突起体１５，１６のケース２０の開口部との対向面には、挿入方向に沿うように傾斜面が形成されている。   4A and 4B are configuration diagrams showing an example of a conventional internal drawer-type electronic device, where FIG. 4A is a plan view and FIG. 4B is a side view. The internal unit 10 incorporates electronic circuit components (not shown), and side plates 11 and 12 are provided on both sides of the internal unit 10. Latch pieces 13 and 14 are provided at substantially central portions of the side plates 11 and 12. These latch pieces 13 and 14 are formed by cutting out three sides into a U-shape so that they can be displaced in the thickness direction of the side plates 11 and 12. Furthermore, a protrusion is provided at the substantially central portion of the surface of the latch pieces 13 and 14 facing the inner wall of the case 20 so as to fit into engagement holes 21 and 22 (22 is not shown) provided on the side surface of the case 20. 15 and 16 are provided. An inclined surface is formed on the surface of the protrusions 15 and 16 facing the opening of the case 20 so as to be along the insertion direction.

図５は図４のように構成された内器１０をケース２０に収納するように挿入したときの動作説明図である。(ａ)に示すように内器１０をケース２０に挿入することにより、ラッチ片１３の突起体１５の傾斜面がケース２０の開口部と接触する。内器１０をさらに挿入すると、(ｂ)に示すように突起体１５の傾斜面はケース２０の内壁を摺動し、ラッチ片１３は側板１１の厚さ方向に変位する。さらに内器１０を挿入すると、(ｃ)に示すように突起体１５がケース２０の側面に設けられた係合穴２１に嵌め合い、内器１０とケース２０は係合される。   FIG. 5 is an operation explanatory diagram when the internal unit 10 configured as shown in FIG. 4 is inserted so as to be housed in the case 20. As shown in FIG. 5A, when the inner unit 10 is inserted into the case 20, the inclined surface of the protrusion 15 of the latch piece 13 comes into contact with the opening of the case 20. When the inner unit 10 is further inserted, the inclined surface of the protrusion 15 slides on the inner wall of the case 20 as shown in FIG. 5B, and the latch piece 13 is displaced in the thickness direction of the side plate 11. When the inner unit 10 is further inserted, the protrusion 15 fits into the engagement hole 21 provided on the side surface of the case 20 as shown in FIG. 5C, and the inner unit 10 and the case 20 are engaged.

特開昭６０−２４６４０１JP-A-60-246401

特許文献１の第４図には、係止片を係合穴に嵌め合わせることにより、内側ケースの前部開口に前部ケースを装着する構成が開示されている。   FIG. 4 of Patent Document 1 discloses a configuration in which the front case is attached to the front opening of the inner case by fitting the locking pieces into the engagement holes.

ところで、このような従来の構成における係止片と係合穴の嵌め合わせよりなる係合部のみでは、ケース内における内器の収納位置が、設計で想定した場合よりも奥になる可能性がある。そこで、ケース内における内器の収納位置が設計で想定した場合よりも奥に入り込まないように、係合部以外の部位にストッパーを設けることが行われている。   By the way, there is a possibility that the storage position of the inner unit in the case may be deeper than the case assumed in the design only by the engagement part formed by fitting the engagement piece and the engagement hole in such a conventional configuration. is there. Therefore, a stopper is provided at a portion other than the engaging portion so that the storage position of the inner device in the case does not enter deeper than the case assumed in the design.

しかし、係合部以外の部位にストッパーを設けることは、部品点数や組み立て工数の増加を避けられず、ストッパーを設けるためのスペースも必要になるという問題がある。   However, providing a stopper in a portion other than the engaging portion inevitably increases the number of parts and the number of assembly steps, and there is a problem that a space for providing the stopper is required.

本発明は、このような従来の問題点に着目したものであり、その目的は、係合部のみの簡単な構成でケース内における内器の収納位置を設計で想定した所定の位置に設定できる電子機器を提供することにある。   The present invention pays attention to such a conventional problem, and its purpose is to set the storage position of the internal unit in the case to a predetermined position assumed in the design with a simple configuration of only the engaging portion. To provide electronic equipment.

このような課題を達成するために、請求項１の発明は、
電子回路部品が組み込まれた内器を引き出し可能にケースに収納するように構成された電子機器であって、
前記内器の側面に形成されたラッチ片と、前記内器を挿入したとき前記内器のラッチ片が相互に嵌め合うように前記ケースの側面の開口部近傍に形成された切り抜き穴とで構成され、
前記ラッチ片にはコ字形の突起体が設けられてこの突起体のコ字形の開口部は前記ケースの開口部と対向するように形成されるとともに前記コ字形の突起体の平行辺には前記内器の内壁面を摺動する傾斜面が設けられ、
前記切り抜き穴にはコ字形状の切り抜き穴により３辺が切り抜かれた切り出し部が設けられ、
前記ラッチ片の突起体が前記切り抜き穴に嵌め合うことにより係合部が形成され、この係合部において、前記突起体の外面と前記切り抜き穴の内面が対向するとともに前記突起体の内面と前記切り出し部の端面が対向し、前記内器の挿入方向および引き出し方向それぞれに対して前記ケースとの位置を規制することを特徴とする。 In order to achieve such a problem, the invention of claim 1
An electronic device configured to be housed in a case so that an internal unit in which an electronic circuit component is incorporated can be pulled out,
A latch piece formed on the side surface of the inner unit, and a cutout hole formed in the vicinity of the opening on the side surface of the case so that the latch piece of the inner unit fits each other when the inner unit is inserted. And
The latch piece is provided with a U-shaped projection, and the U-shaped opening of the projection is formed so as to face the opening of the case, and the parallel side of the U-shaped projection is arranged on the parallel side. An inclined surface that slides on the inner wall surface of the inner unit is provided,
The cutout hole is provided with a cutout portion having three sides cut out by a U-shaped cutout hole,
An engaging portion is formed by fitting the protrusion of the latch piece into the cutout hole. In the engaging portion, the outer surface of the protrusion and the inner surface of the cutout hole face each other, and the inner surface of the protrusion and the inner surface of the protrusion. The end faces of the cut-out part are opposed to each other, and the position with respect to the case is regulated with respect to the insertion direction and the pull-out direction of the inner unit.

これらにより、係合部のみの簡単な構成でケース内における内器の収納位置を設計で想定した所定の位置に規制できる電子機器が実現できる。   Accordingly, it is possible to realize an electronic device that can restrict the storage position of the internal unit in the case to a predetermined position assumed in the design with a simple configuration of only the engaging portion.

以下、本発明について、図１を用いて説明する。図１は本発明の一実施例を示す斜視図であり、内器引き出し形電子機器の具体例を示している。図１において、内器３０はケース４０の内部に引き出し可能に収納固定される。   Hereinafter, the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing an embodiment of the present invention, showing a specific example of an internal drawer electronic device. In FIG. 1, the inner unit 30 is housed and fixed in a case 40 so that it can be pulled out.

内器３０は、端子板や複数の電子部品が実装された複数のプリント配線板を含む構成部品をプリント配線板保持部材３１に取り付けることにより、構成されている。プリント配線板保持部材３１の外周には、主平面に対して垂直な面になるように挿入方向へＬ字形に形成された複数のラッチ片が一体化されていて、図１では一方の側面として設けられたラッチ片３２のみを示している。   The inner unit 30 is configured by attaching a component including a terminal board and a plurality of printed wiring boards on which a plurality of electronic components are mounted to the printed wiring board holding member 31. On the outer periphery of the printed wiring board holding member 31, a plurality of latch pieces formed in an L shape in the insertion direction so as to be a surface perpendicular to the main plane are integrated. Only the provided latch piece 32 is shown.

ラッチ片３２には、平面形状がコ字形の突起体３３が、コ字形の開口部がケース４０の開口部と対向するように、設けられている。   The latch piece 32 is provided with a U-shaped projection 33 having a U-shaped planar shape so that the U-shaped opening faces the opening of the case 40.

ケース４０はほぼ円筒の多角形筒状に形成されていて、開口部には正方形のフランジ部４１が一体化されている。これは、既存のパネルに取り付けられている計器のケース外形が円筒形であっても、パネルの取り付け穴をそのまま利用して取り替えられるように考慮していることに基づく。ケース４０の側面の開口部近傍には、コ字形の開口部が内器３０の挿入方向に開口してラッチ片３２のコ字形の突起体３３が嵌め合うようにコ字形状の切り抜き穴４２により３辺が切り抜かれた切り出し部４３が設けられている。   The case 40 is formed in a substantially cylindrical polygonal cylindrical shape, and a square flange portion 41 is integrated with the opening. This is based on the consideration that even if the case outer shape of the instrument attached to the existing panel is cylindrical, it can be replaced using the mounting hole of the panel as it is. In the vicinity of the opening on the side surface of the case 40, a U-shaped opening is formed in the U-shaped cutout hole 42 so that the U-shaped opening opens in the insertion direction of the inner unit 30 and the U-shaped protrusion 33 of the latch piece 32 is fitted. A cut-out portion 43 with three sides cut out is provided.

内器３０をケース４０に挿入することにより、内器３０のラッチ片３２のコ字形の突起体３３がケース４０のコ字形状に３辺が切り抜かれた切り抜き穴４２に嵌め合い、内器３０とケース４０を係合固定する係合部を構成し、内器３０がケース４０内に設計に基づき予め設定された所定の位置関係を保った状態で固定される。図１の実施例では、内器３０がケース４０内に所定の位置関係を保った状態で固定されることにより、内器３０のプリント配線板の端部に実装されている端子板がケース４０の背面から露出する。   By inserting the inner unit 30 into the case 40, the U-shaped protrusion 33 of the latch piece 32 of the inner unit 30 fits into the cut-out hole 42 in which three sides are cut out in the U-shape of the case 40. And an engagement portion for engaging and fixing the case 40, and the inner unit 30 is fixed in the case 40 while maintaining a predetermined positional relationship set in advance based on the design. In the embodiment of FIG. 1, the inner unit 30 is fixed in the case 40 while maintaining a predetermined positional relationship, so that the terminal board mounted on the end portion of the printed wiring board of the inner unit 30 becomes the case 40. Exposed from the back.

図２は図１の主要部分の拡大構成図であり、(ａ)は内器３０のラッチ片３２のコ字形の突起体３３の平面図、(ｂ)は(ａ)のＡ−Ａ’断面図、(ｃ)はケース４０の側面がコ字形状の切り抜き穴４２により３辺が切り抜かれた切り出し部４３の平面図、(ｄ)は(ｂ)のＢ−Ｂ’断面図である。ラッチ片３２のコ字形の突起体３３には、挿入方向に沿うように傾斜面３４が形成されている。   2 is an enlarged configuration diagram of the main part of FIG. 1, (a) is a plan view of a U-shaped protrusion 33 of the latch piece 32 of the inner unit 30, and (b) is a cross-sectional view taken along line AA ′ of (a). FIG. 4C is a plan view of a cutout portion 43 in which three sides are cut out by a cutout hole 42 whose side surface of the case 40 is U-shaped, and FIG. 4D is a cross-sectional view along BB ′ of FIG. An inclined surface 34 is formed on the U-shaped protrusion 33 of the latch piece 32 so as to follow the insertion direction.

図３は図２のように構成された内器３０をケース４０に収納するように挿入したときの動作説明図である。(ａ)に示すように内器３０をケース４０に挿入することにより、ラッチ片３２の突起体３３の傾斜面３４がケース４０の開口部と接触する。内器３０をさらに挿入すると、(ｂ)に示すように突起体３３の傾斜面３４はケース４０の内壁面を摺動し、ラッチ片３２は厚さ方向に変位する。さらに内器３０を挿入すると、(ｃ)に示すようにラッチ片３２の弾性によって突起体３３がケース４０の側面に設けられた切り抜き穴４２に嵌め合い、内器３０とケース４０は係合される。(ｄ)は係合状態を示す平面図である。   FIG. 3 is an operation explanatory view when the inner unit 30 configured as shown in FIG. 2 is inserted so as to be housed in the case 40. By inserting the inner unit 30 into the case 40 as shown in (a), the inclined surface 34 of the protrusion 33 of the latch piece 32 comes into contact with the opening of the case 40. When the inner unit 30 is further inserted, the inclined surface 34 of the protrusion 33 slides on the inner wall surface of the case 40 as shown in FIG. 5B, and the latch piece 32 is displaced in the thickness direction. When the inner unit 30 is further inserted, the protrusion 33 fits into the cut-out hole 42 provided on the side surface of the case 40 due to the elasticity of the latch piece 32 as shown in (c), and the inner unit 30 and the case 40 are engaged. The (d) is a top view which shows an engagement state.

(ｃ)に示すようにラッチ片３２の突起体３３が切り抜き穴４２に嵌め合った状態において、ケース４０から内器３０を引き出そうとすると、ラッチ片３２の突起体３３の外面３５と切り抜き穴４２の内面４４がぶつかることになり、内器３０がケース４０から抜け出さないように規制される。   In the state where the protrusion 33 of the latch piece 32 is fitted in the cutout hole 42 as shown in FIG. 5C, when the inner unit 30 is pulled out from the case 40, the outer surface 35 of the protrusion 33 of the latch piece 32 and the cutout hole 42 are obtained. The inner surface 44 of the inner surface 30 will collide, and the inner unit 30 is regulated so as not to come out of the case 40.

逆に内器３０をさらケース４０の奥へ押し込もうとする力が働くと、ラッチ片３２の突起体３３の内面３６と切り抜き穴４２により切り出された切り出し部４３の端面４５がぶつかることになり、内器３０がケース４０の奥へ押し込まれないように規制される。なお切り抜き穴４２のコ字形の上下辺部分は、コ字形ラッチ片３２の突起体３３の傾斜面３４が嵌め合うための逃げスペースである。   On the contrary, when a force to push the inner unit 30 further into the back of the case 40 is applied, the inner surface 36 of the protrusion 33 of the latch piece 32 and the end surface 45 of the cutout portion 43 cut out by the cutout hole 42 collide with each other. Thus, the inner unit 30 is regulated so as not to be pushed into the back of the case 40. The upper and lower sides of the U-shape of the cut-out hole 42 are escape spaces for fitting the inclined surfaces 34 of the protrusions 33 of the U-shaped latch piece 32 together.

このように構成することにより、内器３０のラッチ片３２のコ字形の突起体３３と、ケース４０のコ字形状の切り抜き穴４２により３辺が切り抜かれた切り出し部４３とで構成される係合部のみで、他にストッパーなどの機構を設けることなく、ケース内における内器の収納位置を設計で想定した所定の位置に設定できる電子機器を実現できる。   With such a configuration, the U-shaped protrusion 33 of the latch piece 32 of the internal unit 30 and the cut-out portion 43 cut out at three sides by the U-shaped cut-out hole 42 of the case 40 are included. It is possible to realize an electronic device that can set the storage position of the internal unit in the case to a predetermined position that is assumed in the design without providing any other mechanism such as a stopper.

なお、上記実施例では、係合部を構成する内器３０のラッチ片３２の突起体３３およびケース４０の切り抜き穴４２がコ字形の例を説明したが、Ｔ字形やＵ字形などであってもよい。   In the above-described embodiment, the example in which the protrusion 33 of the latch piece 32 of the inner unit 30 and the cutout hole 42 of the case 40 constituting the engaging portion are U-shaped has been described. Also good.

また、係合部は対象とする電子機器の大きさによっては必ずしも複数個設けなくてもよく、小型の電子機器の場合には少なくとも１個設ければよい。   A plurality of engaging portions may not necessarily be provided depending on the size of the target electronic device, and at least one engaging portion may be provided in the case of a small electronic device.

以上説明したように、本発明によれば、温度調節計や電力監視計などの工業計器をはじめとする内器引き出し形の各種電子機器において、内器をケース内に収納するように挿入するのにあたり、内器を設計に基づき予め設定されたケース内の所定位置で停止させることができ、内器をケースと着脱可能に係合させるのに好適である。   As described above, according to the present invention, in various types of electronic equipment with internal drawers including industrial instruments such as a temperature controller and a power monitor, the internal instrument is inserted so as to be housed in the case. In this case, the inner unit can be stopped at a predetermined position in the case set in advance based on the design, which is suitable for detachably engaging the inner unit with the case.

発明の一実施例を示す斜視図である。It is a perspective view which shows one Example of invention. 図１の主要部分の拡大構成図である。It is an enlarged block diagram of the principal part of FIG. 図２の構成の動作説明図である。It is operation | movement explanatory drawing of the structure of FIG. 従来の内器引き出し形の電子機器の一例を示す構成図である。It is a block diagram which shows an example of the conventional internal device drawer-type electronic device. 図４の構成の動作説明図である。FIG. 5 is an operation explanatory diagram of the configuration of FIG. 4.

符号の説明Explanation of symbols

３０ 内器
３１ プリント配線板保持部材
３２ ラッチ片
３３ 突起体(平面形状コ字形)
３４ 傾斜面
３５ 外面
４０ ケース
４１ フランジ部(正方形)
４２ 切り抜き穴(コ字形)
４３ 切り出し部
４４ 内面
４５ 端面


30 Inner unit 31 Printed wiring board holding member 32 Latch piece 33 Projection body (planar U shape)
34 Inclined surface 35 Outer surface 40 Case 41 Flange (square)
42 Cutout hole (U-shaped)
43 Cutout 44 Inner surface 45 End surface


Claims (1)

電子回路部品が組み込まれた内器を引き出し可能にケースに収納するように構成された電子機器であって、
前記内器の側面に形成されたラッチ片と、前記内器を挿入したとき前記内器のラッチ片が相互に嵌め合うように前記ケースの側面の開口部近傍に形成された切り抜き穴とで構成され、
前記ラッチ片にはコ字形の突起体が設けられてこの突起体のコ字形の開口部は前記ケースの開口部と対向するように形成されるとともに前記コ字形の突起体の平行辺には前記内器の内壁面を摺動する傾斜面が設けられ、
前記切り抜き穴にはコ字形状の切り抜き穴により３辺が切り抜かれた切り出し部が設けられ、
前記ラッチ片の突起体が前記切り抜き穴に嵌め合うことにより係合部が形成され、この係合部において、前記突起体の外面と前記切り抜き穴の内面が対向するとともに前記突起体の内面と前記切り出し部の端面が対向し、前記内器の挿入方向および引き出し方向それぞれに対して前記ケースとの位置を規制することを特徴とする電子機器。 An electronic device configured to be housed in a case so that an internal unit in which an electronic circuit component is incorporated can be pulled out,
A latch piece formed on the side surface of the inner unit, and a cutout hole formed in the vicinity of the opening on the side surface of the case so that the latch piece of the inner unit fits each other when the inner unit is inserted. And
The latch piece is provided with a U-shaped projection, and the U-shaped opening of the projection is formed so as to face the opening of the case, and the parallel side of the U-shaped projection is arranged on the parallel side. An inclined surface that slides on the inner wall surface of the inner unit is provided,
The cutout hole is provided with a cutout portion having three sides cut out by a U-shaped cutout hole,
An engaging portion is formed by fitting the protrusion of the latch piece into the cutout hole. In the engaging portion, the outer surface of the protrusion and the inner surface of the cutout hole face each other, and the inner surface of the protrusion and the inner surface of the protrusion. An electronic device characterized in that end faces of the cut-out portion face each other and restrict the position of the case with respect to the insertion direction and the pull-out direction of the inner unit.
JP2005326922A 2005-11-11 2005-11-11 Electronics Expired - Fee Related JP4687407B2 (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04151010A (en) * 1990-10-11 1992-05-25 Seiko Epson Corp Engagingly locking structure
JPH06216543A (en) * 1993-01-19 1994-08-05 Fujitsu Ten Ltd Structure of fitting box body for front decorating plate
JPH09116281A (en) * 1995-10-13 1997-05-02 Omron Corp Cover fixing structure of control apparatus
JPH09199865A (en) * 1996-01-23 1997-07-31 Omron Corp Power device
JPH11112165A (en) * 1997-10-01 1999-04-23 Yaskawa Electric Corp Structure of attaching case to device frame body

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04151010A (en) * 1990-10-11 1992-05-25 Seiko Epson Corp Engagingly locking structure
JPH06216543A (en) * 1993-01-19 1994-08-05 Fujitsu Ten Ltd Structure of fitting box body for front decorating plate
JPH09116281A (en) * 1995-10-13 1997-05-02 Omron Corp Cover fixing structure of control apparatus
JPH09199865A (en) * 1996-01-23 1997-07-31 Omron Corp Power device
JPH11112165A (en) * 1997-10-01 1999-04-23 Yaskawa Electric Corp Structure of attaching case to device frame body

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