JP2011187686A - Measuring device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a measuring device which includes many units coupled together while maintaining sufficient fastness properties. <P>SOLUTION: A measuring device body includes a body portion 11 and a support portion 12 which is formed protruding from a back of the body portion 11 in a right-angle direction. In the support portion 12, a second connector which is connected with a first connector arranged at bottom portions of first terminal base units 3a and 3b by pressing the first terminal base units 3a and 3b in a first direction parallel with a back of the body portion 11, is arranged on a upper surface of the support portion, and the first terminal base units 3a and 3b are coupled to the upper surface side of the support portion by connection of both connectors and are supported by the support portion 12, further a fourth connector which is connected with a third connector arranged on fronts of second terminal base units 4a and 4b by pressing the second terminal base units 4a and 4b in a second direction orthogonal to the back of the body portion, is arranged on a rear end surface of the support portion, and the second terminal base units 4a and 4b are coupled to the rear end surface by connection of both connectors and are supported by the support portion 12. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a measuring apparatus including an apparatus main body and a unit portion connectable to the apparatus main body.

  There is known a measuring apparatus (for example, a unit device disclosed by the applicant in Japanese Patent Laid-Open No. 2008-267424) that uses a plurality of units connected in accordance with the type of physical quantity to be measured. This measuring device is, for example, a stationary measuring device that is installed and used at a measuring location, and by connecting a plurality of adjacent units with screws or connecting metal fittings in a state where a plurality of units are arranged, any measuring device can be used. It is possible to connect several units. In addition, the applicant has developed a portable measuring apparatus including an apparatus main body and a terminal block unit that can be attached to and detached from the apparatus main body. In this measuring apparatus, for example, when measuring using a sensor, the terminal block unit is connected to the apparatus main body by connecting and screwing the connector provided on the side surface of the apparatus main body with the connector of the terminal block unit, and the terminal. Connect the sensor to the terminal provided on the base unit. In this measuring apparatus, it is possible to perform measurement using a sensor while maintaining sufficient robustness by connecting the terminal block unit portion to the apparatus main body.

JP 2008-267424 A (page 4, FIG. 1)

  However, the above measuring apparatus has the following problems. That is, in the above-described portable measuring apparatus, the number of terminal block units that can be connected to the apparatus main body is limited to one. For this reason, it is difficult for this portable measuring apparatus to cope with measurement using a large number of sensors. In this case, the connection method in the above-described stationary type measuring apparatus, that is, the second terminal block unit is further connected to the side surface of the first terminal block unit connected to the side surface of the apparatus main body by connecting the connector and screwing. A configuration employing a coupling method is also conceivable. However, in this configuration, since the second terminal block unit is not directly supported by the apparatus main body, each terminal block unit bends due to its weight and the robustness is impaired, and the apparatus main body and the terminal block unit are not separated. Therefore, there is a problem that the work efficiency of the carrying work / measurement work is lowered due to such care and transportation and use, and improvement of this point is desired.

  The present invention has been made in view of the problems to be solved, and a main object of the present invention is to provide a measuring apparatus that can connect many units while maintaining sufficient robustness.

  In order to achieve the above object, the measuring apparatus according to claim 1 includes an apparatus main body, and a first unit part and a second unit part connectable to the apparatus main body, and is configured to be able to measure a physical quantity. Is provided with a substantially rectangular parallelepiped main body part and a support part that is formed to protrude in a direction perpendicular to the back surface of the main body part and supports the unit parts, and the support part is formed with respect to the back surface of the main body part. A second connector to which the first connector disposed at the bottom of the first unit portion is connected by pressing the first unit portion along the first parallel direction is disposed on the upper surface. The second unit portion is supported by pressing the second unit portion along a second direction orthogonal to the back surface of the main body portion while supporting the first unit portion coupled to the upper surface side by connecting the connector. Unit A fourth connector to which a third connector disposed on the front surface of the unit is connected is disposed on the rear end surface so that the second unit unit coupled to the rear end surface side can be supported by connecting both the connectors. It is configured.

  The measuring device according to claim 2 is the measuring device according to claim 1, wherein a fitting hole is formed in the back surface of the main body, and the front surface of the first unit is opposed to the back surface of the main body. Is provided with a protrusion that is fitted into the fitting hole by pressing the first unit portion along the first direction.

  The measuring apparatus according to claim 3 is the measuring apparatus according to claim 1 or 2, wherein the first unit includes a terminal block having a terminal for inputting an electric signal, and the second unit. Is configured to include a terminal block and a base portion to which the terminal block is connected, and the terminal blocks in the first unit and the second unit are formed in the same shape.

  According to a fourth aspect of the present invention, there is provided the measuring apparatus according to the third aspect, further comprising a connection fitting that connects the terminal block of the first unit and the terminal block of the second unit.

  The measuring device according to claim 5 is the measuring device according to claim 3 or 4, wherein each of the terminal blocks includes a cover that is rotatably attached to the terminal block and opens and closes an upper portion of the terminal block. The cover is formed with a recess for avoiding contact with the cover of another adjacent terminal block when the cover is rotated so as to open the upper part of the terminal block.

  The measuring apparatus according to claim 1, wherein a support portion is formed so as to project at a right angle from the back surface of the main body portion, and the support portion is provided at the bottom of the first unit portion and the second connector provided on the upper surface of the support portion. By supporting the first connector, the first unit connected to the upper surface side is supported. Therefore, according to this measuring apparatus, the connected first unit part is supported from the bottom side by the support part as a part of the apparatus main body. As a result, the first unit part is simply connected to the connector and screwed to the apparatus main body. Compared with the configuration (that is, the conventional configuration) connected to the side surface of the first unit portion, the first unit portion can be connected to the apparatus main body with sufficient strength. Further, in this measuring apparatus, the support unit is connected to the rear end surface side by connecting the fourth connector disposed on the rear end surface of the support unit and the third connector disposed on the front surface of the second unit. Support. That is, in this measuring apparatus, the second unit is directly connected to the support part as a part of the apparatus main body and not directly supported by the support part without passing through the first terminal block unit. For this reason, in this measuring apparatus, a configuration in which the second unit is further connected only by connection of the connector and screwing to the first unit part connected to the side surface of the apparatus main body only by connection and screwing of the connector, That is, unlike the configuration in which the second unit is not directly supported by the apparatus main body, the bending of each terminal block unit due to the weight can be kept low. Therefore, according to this measuring apparatus, it is possible to connect more units than in the past while maintaining sufficient robustness.

  In the measuring apparatus according to claim 2, the fitting hole is formed in the back surface of the main body portion, and the protruding portion fitted into the fitting hole by pressing the first unit portion along the first direction is arranged on the front surface of the first unit portion. It is installed. For this reason, according to this measuring apparatus, as a result of the first unit portion being supported by the main body portion by fitting the protrusion into the fitting hole, the first unit portion can be further strengthened with respect to the apparatus main body. Can be linked.

  According to the measuring device of the third aspect, since the terminal block of the first unit and the terminal block of the second unit are formed in the same shape, the terminal blocks of both units can be made common. The manufacturing cost of the terminal block, and hence the manufacturing cost of the measuring device can be reduced.

  According to the measuring apparatus of claim 4, by providing the connecting bracket for connecting the terminal block of the first unit and the terminal block of the second unit, the terminal blocks of both units are connected via the connecting bracket. As a result, the movement of the second unit relative to the first unit portion can be reliably restricted, so that the bending of the second unit relative to the apparatus main body can be further reduced.

  According to the measuring apparatus of claim 5, when the cover that opens and closes the upper part of the terminal block is pivotally attached to the terminal block, and the upper terminal block is rotated so as to open the upper part of the terminal block, By forming a recess in the cover to avoid contact with the cover, the upper part of the terminal block is opened sufficiently wide without hindering the rotation of the cover, making it easy to connect the signal line to the terminal. Can be done.

1 is a perspective view showing a configuration of a measuring device 1. FIG. 2 is a perspective view showing a configuration of an apparatus main body 2. FIG. It is a perspective view which shows the structure of 1st terminal block unit 3a, 3b. It is the perspective view which looked at the 1st terminal block units 3a and 3b from the bottom face 31a side. It is a perspective view which shows the structure of 2nd terminal block unit 4a, 4b. 4 is a perspective view showing a configuration of a base portion 43. FIG. FIG. 3 is a perspective view of a state in which first terminal block units 3a and 3b are connected to the apparatus body 2. 1 is a plan view of a measuring device 1. FIG. FIG. 2 is a first explanatory view explaining how to use the measuring apparatus 1. FIG. 6 is a second explanatory diagram explaining how to use the measuring apparatus 1.

  Hereinafter, embodiments of a measuring apparatus according to the present invention will be described with reference to the accompanying drawings.

  First, the configuration of the measuring apparatus 1 will be described. The measuring apparatus 1 shown in FIG. 1 is an example of a measuring apparatus, and includes an apparatus main body 2 and first terminal block units 3a and 3b (an example of a first unit portion. Unit 2) and second terminal block units 4a and 4b (an example of the second unit portion, hereinafter also referred to as "second terminal block unit 4" when not distinguished from each other). And various physical quantities such as temperature can be measured.

  As shown in FIG. 2, the apparatus main body 2 includes a main body portion 11 and a support portion 12. The main body 11 is configured in a thin and substantially rectangular parallelepiped shape, and main components (not shown) such as a power supply circuit and a measurement circuit necessary for measuring physical quantities are accommodated therein. In addition, a display unit 21 (for example, a liquid crystal panel) that displays a screen showing measurement results, a setting screen, and the like is disposed on the upper surface 11a of the main body unit 11 and operations for performing various operations. An operation unit 22 composed of buttons is provided.

  In addition, as shown in FIG. 2, the side surface 11b of the main body 11 (the side surface located on the left side when viewed from the user in the use state in which the measuring apparatus 1 is leveled (see FIG. 8)) On the other hand, a terminal 23 for supplying power is provided. Furthermore, as shown in the figure, the side surface 11c of the main body 11 (the side surface positioned on the right side when viewed from the user when the measuring device 1 is used in a horizontal state) has data (electrical signals) with the external device. ) Is transmitted and received. Further, as shown in FIG. 2, the first terminal block unit 3 is disposed on the back surface 11 d of the main body 11 (a side surface located on the back side when viewed from the user when the measuring apparatus 1 is used horizontally). A fitting hole 11e into which a later-described protruding portion 31d is fitted is formed.

  As shown in FIG. 2, the support portion 12 is configured in a substantially rectangular plate shape, and is integrally formed with the main body portion 11 so as to protrude in a direction perpendicular to the back surface 11 d of the main body portion 11. In this case, the support section 12 has a function of connecting the terminal block units 3 and 4 and supporting the connected terminal block units 3 and 4. A connector 102 (second connector) is disposed on the upper surface 12 a of the support portion 12. The connector 102 has a first direction parallel to the back surface 11d of the main body 11 (when the measuring device 1 is leveled) when the first terminal block unit 3 is connected to the main body 2 (support 12). The first terminal block unit 3 is pressed on the bottom surface 31a (bottom portion) of the terminal block 31 (to be described later) by pressing the first terminal block unit 3 along the direction of the arrow A in FIG. Connected to the connector 101 (first connector).

  Further, as shown in FIG. 2, an insertion hole 12 d through which a screw (not shown) for fixing the connected first terminal block unit 3 is inserted and the connected second terminal block unit 4 are fixed to the support portion 12. A screw hole 12e into which a screw 301 (see FIG. 5) is inserted is formed. Further, as shown in FIG. 7, a connector 104 (fourth connector) is disposed on the end surface 12 b (rear end surface) of the rear end portion (front end portion in the protruding direction) of the support portion 12. When the second terminal block unit 4 is connected to the apparatus main body 2, the connector 104 has a second direction orthogonal to the back surface 11 d of the main body 11 (the horizontal direction when the measuring apparatus 1 is horizontal). The connector 103 (first connector) disposed on the front surface 51b of the base portion 43 (to be described later) in the second terminal block unit 4 by pressing the second terminal block unit 4 along the direction of the arrow B shown in FIG. 3 connectors).

  As illustrated in FIGS. 3 and 4, the first terminal block unit 3 includes a substantially rectangular parallelepiped terminal block 31, a connector 101, and a cover 32. On the upper part of the terminal block 31, a plurality of terminals 201 for inputting electric signals by connecting signal lines of sensors not shown in the figure are arranged. As shown in FIG. 4, a screw hole 31 b is formed in the bottom surface 31 a of the terminal block 31. Further, when the first terminal block unit 3 is connected to the apparatus main body 2 on the front surface 31c of the terminal block 31, the first terminal block unit 3 is pressed against the rear surface 11d of the main body 11 along the direction of the arrow A. A protrusion 31d that is fitted into the formed fitting hole 11e is provided. Further, as shown in FIG. 3, an insertion hole 31 f into which a distal end portion of a connection fitting 53 to be described later can be inserted is formed in the back surface 31 e of the terminal block 31.

  As shown in FIG. 4, the connector 101 is disposed on the bottom surface 31 a of the terminal block 31. As shown in FIG. 3, the cover 32 is rotatably disposed on the upper portion of the terminal block 31, and opens and closes the upper portion of the terminal block 31. Further, the cover 32 is formed with a recess 32a.

  As shown in FIG. 5, the second terminal block unit 4 includes the terminal block 31, the connector 101 (not shown in FIG. 5), and the cover 32 that constitute the first terminal block unit 3, and a base portion. 43 and a connector 103. That is, the terminal block 31, the connector 101, and the cover 32 that constitute the first terminal block unit 3 and the second terminal block unit 4, respectively, are formed in the same shape.

  The base portion 43 is a member for connecting the terminal block 31 to the apparatus main body 2 (supporting portion 12), and as shown in FIG. 6, a base 51 and a columnar portion 52 erected on the base 51, It is comprised so that the terminal block 31 can be attached. In this case, a connector 105 connected to the connector 101 disposed on the bottom surface 31 a of the terminal block 31 is disposed on the top surface 51 a of the base 51. Further, as shown in FIG. 5, the base 51 is formed with an insertion hole 51d through which a screw 301 for fixing the base portion 43 (second terminal block unit 4) to the support portion 12 (device main body 2) is inserted. In addition, as shown in FIG. 6, an insertion hole 51 c for inserting a screw (not shown) for fixing the terminal block 31 attached to the base 51 (base portion 43) is formed. Further, as shown in the figure, a screw hole 52a for screwing the connection fitting 53 (see FIG. 5) is formed at the top of the columnar portion 52. The connector 103 is disposed on the front surface 51b of the base 51 (corresponding to the front surface of the second terminal block unit 4).

  Next, a method for connecting the terminal block units 3a, 3b, 4a, 4b to the apparatus main body 2 will be described with reference to the drawings.

  First, the first terminal block unit 3 a is connected to the apparatus main body 2. Specifically, in the state where the upper surface 12a (see FIG. 2) of the support portion 12 in the apparatus main body 2 and the bottom surface 31a of the terminal block 31 in the first terminal block unit 3a are opposed to each other, the arrows shown in FIG. The first terminal block unit 3a is pressed toward the upper surface 12a of the support portion 12 along the direction A. At this time, the protrusion 31 d disposed on the front surface 31 c of the terminal block 31 is fitted into the fitting hole 11 e formed on the back surface 11 d of the main body 11. In addition, the connector 101 disposed on the bottom surface 31 a of the terminal block 31 and the connector 102 disposed on the top surface 12 a of the support portion 12 are connected. Next, a screw (not shown) inserted through the insertion hole 12 d formed in the support portion 12 is screwed into a screw hole 31 b formed in the bottom surface 31 a of the terminal block 31. Thereby, the first terminal block unit 3a is connected to the apparatus main body 2. Subsequently, the first terminal block unit 3b is connected to the apparatus main body 2 in the same procedure.

  In this case, in this measuring apparatus 1, since the first terminal block units 3a and 3b are connected to the upper surface 12a side of the support portion 12 formed integrally with the main body portion 11, the connected first terminal block units 3a and 3b are connected. 3 b is supported by a support portion 12 as a part of the apparatus main body 2. For this reason, in this measuring apparatus 1, compared with the configuration in which the first terminal block units 3a and 3b are connected to the side surface of the apparatus main body 2 only by connection and screwing of the connectors 101 and 102 (that is, the conventional configuration), The first terminal block units 3a and 3b are connected to the apparatus main body 2 with sufficient strength.

  Next, the terminal block 31 is attached to the base portion 43 to assemble the second terminal block unit 4a. Specifically, with the bottom surface 31a (see FIG. 4) of the terminal block 31 and the upper surface 51a (see FIG. 6) of the base 51 in the base portion 43 facing each other, the terminal block 31 is placed on the upper surface 51a of the base 51. Press toward. At this time, the connector 101 disposed on the bottom surface 31 a of the terminal block 31 and the connector 105 disposed on the top surface 51 a of the base 51 are connected. Subsequently, a screw (not shown) is inserted into the insertion hole 51 d formed in the base 51, and a screw (not shown) is screwed into the screw hole 31 b formed in the bottom surface 31 a of the terminal block 31. The terminal block 31 is fixed with respect to. Thereby, as shown in FIG. 5, the 2nd terminal block unit 4a is assembled. Next, the second terminal block unit 4b is assembled in the same manner.

  Subsequently, the second terminal block unit 4 a is connected to the apparatus main body 2. Specifically, in the state where the end surface 12b of the support portion 12 in the apparatus main body 2 and the front surface 51b of the base portion 43 (base 51) in the second terminal block unit 4a face each other, the direction of the arrow B shown in FIG. The second terminal block unit 4a is pressed toward the end surface 12b of the support portion 12 along the direction. At this time, the connector 103 disposed on the front surface 51 b of the base 51 in the base portion 43 and the connector 104 disposed on the end surface 12 b of the support portion 12 are connected. Next, the screw 301 inserted through the insertion hole 51 c formed in the base 51 is screwed into the screw hole 12 e formed in the end surface 12 b of the support portion 12. Thereby, the second terminal block unit 4a is connected to the apparatus main body 2. Subsequently, the second terminal block unit 4b is connected to the apparatus main body 2 in the same procedure.

  In this case, in this measuring apparatus 1, the second terminal block units 4 a and 4 b are connected to the end surface 12 b side of the support portion 12 formed integrally with the main body portion 11. That is, in this measuring apparatus 1, the second terminal block units 4a and 4b are directly connected to the support section 12 as a part of the apparatus body 2 without passing through the first terminal block units 3a and 3b. Supported directly by. For this reason, in this measuring apparatus 1, the second terminal block unit 4a, 4b, and the second terminal block unit 4a, 3b are connected to the side surface of the apparatus body 2 only by connecting and screwing the connectors 101, 102. Unlike the configuration in which 4b is connected only by connector connection and screwing, that is, the configuration in which the second terminal block units 4a and 4b are not directly supported by the apparatus body 2, the terminal block units 3a, 3b, 4a, The bending of 4b is suppressed low. Therefore, in this measuring apparatus 1, it is possible to connect more terminal block units 3 and 4 than before while maintaining sufficient robustness.

  Next, as shown in FIG. 8, the second terminal block in a state where the distal end portion of the connection fitting 53 is inserted into the insertion hole 31 f formed in the back surface 31 e of the terminal block 31 in the first terminal block units 3 a and 3 b. The connection fitting 53 is screwed to the top of the columnar part 52 in the base part 43 of the units 4a and 4b. At this time, since the terminal block 31 of the first terminal block unit 3 and the terminal block 31 of the second terminal block unit 4 are connected via the connection fitting 53, the second terminal block unit with respect to the first terminal block unit 3 is connected. As a result of the movement of 4 being restricted, the bending of the second terminal block unit 4 with respect to the apparatus body 2 can be further suppressed. Thus, the connection of each terminal block unit 3a, 3b, 4a, 4b to the apparatus main body 2 is completed.

  On the other hand, when, for example, temperature measurement is performed using the measuring apparatus 1 in which the connection of each terminal block unit 3a, 3b, 4a, 4b to the apparatus main body 2 is performed, a temperature sensor is provided to each terminal block unit 3a, 3b, 4a, 4b. Connect the signal line. Specifically, for example, as shown in FIG. 9, the cover 32 of the second terminal block unit 4 a is rotated to open the upper portion of the terminal block 31. In this case, in this measuring apparatus 1, since the recess 32a is formed in the cover 32, when the cover 32 is rotated so as to open the upper part of the terminal block 31, as shown in FIG. Contact with the cover 32 of the one-terminal block unit 3a is avoided. For this reason, as a result of opening the upper part of the terminal block 31 of the second terminal block unit 4a sufficiently wide without hindering the rotation of the cover 32 of the second terminal block unit 4a, the connection work of the signal line to the terminal 201 is performed. Can be easily performed. Subsequently, the operation unit 22 is operated according to a predetermined procedure to perform measurement. In this measuring apparatus 1, as described above, since many terminal block units 3 and 4 are connected, it is possible to cope with measurement using many sensors. In addition, since sufficient robustness is maintained, it is possible to sufficiently increase work efficiency in measurement work performed by moving the measurement place.

  As described above, in the measuring apparatus 1, the support portion 12 is formed so as to project at a right angle from the back surface 11d of the main body portion 11, and the support portion 12 is provided with the connector 102 and the first terminal disposed on the upper surface 12a of the support portion 12. The first terminal block unit 3 connected to the upper surface 12a side is supported by connection with the connector 101 disposed on the bottom surface 31a of the table unit 3. Therefore, according to this measuring apparatus 1, as a result of the connected first terminal block unit 3 being supported from the bottom surface 31 a side by the support portion 12 as a part of the apparatus main body 2, the first terminal block unit 3 is connected to the connector 101. , 102 and the first terminal block unit 3 are coupled to the apparatus main body 2 with sufficient strength as compared with the structure coupled to the side surface of the apparatus main body 2 only by screwing and screwing (that is, the conventional configuration). be able to. Further, in this measuring apparatus 1, the support portion 12 is connected to the connector 104 provided on the end surface 12 b of the distal end portion of the support portion 12 and the connector 103 provided on the front surface 51 b of the second terminal block unit 4. The second terminal block unit 4 connected to the side is supported. That is, in this measuring apparatus 1, the second terminal block unit 4 is directly connected to the support section 12 as a part of the apparatus main body 2 without the first terminal block unit 3, and is directly supported by the support section 12. The For this reason, in this measuring apparatus 1, the second terminal block unit 4 is further connected to the first terminal block unit 3 connected to the side surface of the apparatus main body 2 only by connection and screwing of the connectors 101 and 102. Unlike the configuration in which the second terminal block unit 4 is not directly supported by the apparatus main body 2, the bending of the terminal block units 3 and 4 due to the weight can be suppressed low, unlike the configuration in which the second terminal block unit 4 is not directly supported by the apparatus body 2. Therefore, according to this measuring apparatus 1, more terminal block units 3 and 4 than before can be connected, maintaining sufficient robustness.

  Moreover, in this measuring apparatus 1, the fitting hole 11e is formed in the back surface 11d of the main-body part 11, and the projection part 31d fitted in the fitting hole 11e by the pressing of the 1st terminal block unit 3 along a 1st direction is 1st. It is disposed on the front surface 31 c of the terminal block unit 3. For this reason, according to this measuring device 1, as a result of the projection 31d being fitted into the fitting hole 11e, the first terminal block unit 3 is also supported by the main body 11, so that the first terminal block unit 3 is mounted on the apparatus main body. 2 can be connected with sufficient strength.

  Moreover, according to this measuring apparatus 1, since the terminal block 31 of the first terminal block unit 3 and the terminal block 31 of the second terminal block unit 4 are formed in the same shape, the terminal blocks of both the terminal block units 3 and 4 are formed. Since 31 can be made common, the manufacturing cost of the terminal block 31 and thus the manufacturing cost of the measuring device 1 can be reduced accordingly.

  Furthermore, according to this measuring apparatus 1, by providing the connecting metal fitting 53 that connects the terminal block 31 of the first terminal block unit 3 and the terminal block 31 of the second terminal block unit 4, both terminal block units 3, Since the four terminal blocks 31 can be connected to each other via the connecting fitting 53, the movement of the second terminal block unit 4 with respect to the first terminal block unit 3 can be reliably restricted. The bending of the two-terminal block unit 4 can be further reduced.

  Moreover, according to this measuring apparatus 1, when the cover 32 which opens and closes the upper part of the terminal block 31 is attached to the terminal block 31 so that rotation is possible, and it rotates so that the upper part of the terminal block 31 may be opened, other adjacent Since the recess 32a for avoiding the contact of the terminal block 31 with the cover 32 is formed in the cover 32, the upper portion of the terminal block 31 is opened sufficiently wide without hindering the rotation of the cover 32. The connection work of the signal line to 201 can be easily performed.

  The example in which the four terminal block units (the first terminal block units 3a and 3b and the second terminal block units 4a and 4b) are connected to the apparatus main body 2 has been described above, but any of these terminal blocks may be used. It is also possible to connect only to the apparatus main body 2. Further, in place of some or all of the first terminal block units 3a and 3b and the second terminal block units 4a and 4b, a unit that does not include the cover 32 or a unit that does not include the terminal block 31 (the terminal block 31 includes Instead, a unit provided with a sensor and an electric circuit) may be employed.

  Further, although the terminal block 31 of the first terminal block unit 3 and the terminal block 31 of the second terminal block unit 4 are configured in the same manner (the same shape), the first terminal block unit 3 and the second terminal are described above. The base unit 4 may be configured differently (different shape).

DESCRIPTION OF SYMBOLS 1 Measuring apparatus 2 Apparatus main body 3a, 3b 1st terminal block unit 4a, 4b 2nd terminal block unit 11 Main body part 11d Back surface 11e Insertion hole 12 Support part 12a Upper surface 12b End surface 31 Terminal block 31a Bottom surface 31c Front surface 31d Projection part 31f Insertion hole 32 Cover 32a Recessed part 43 Base part 51b Front face 53 Connecting metal fitting 101-104 Connector 201 Terminal

Claims (5)

Comprising a device main body, a first unit portion and a second unit portion connectable to the device main body, and configured to be able to measure a physical quantity;
The apparatus main body includes a substantially rectangular parallelepiped main body portion, and a support portion that is formed to protrude in a direction perpendicular to the back surface of the main body portion and supports each unit portion,
The support unit is connected to a first connector disposed on a bottom portion of the first unit portion by pressing the first unit portion along a first direction parallel to the back surface of the main body portion. A second connector disposed on the upper surface and supporting the first unit portion connected to the upper surface side by connecting the two connectors, and in a second direction orthogonal to the rear surface of the main body portion. A fourth connector to which a third connector disposed on the front surface of the second unit portion is connected by pressing the second unit portion along the rear end surface is disposed on the rear end surface. The measuring apparatus comprised so that support of the said 2nd unit part connected with the side was possible. A fitting hole is formed on the back surface of the main body,
The front surface of the first unit portion opposed to the back surface of the main body portion is provided with a protrusion that is fitted into the fitting hole by pressing the first unit portion along the first direction. Item 1. The measuring apparatus according to Item 1. The first unit portion includes a terminal block having a terminal for inputting an electric signal,
The second unit portion includes a terminal block and a base portion to which the terminal block is connected,
The measuring device according to claim 1 or 2, wherein the terminal blocks in the first unit part and the second unit part are formed in the same shape.   The measuring apparatus according to claim 3, further comprising a connection fitting that connects the terminal block of the first unit portion and the terminal block of the second unit portion. Each terminal block includes a cover that is rotatably attached to the terminal block and opens and closes an upper portion of the terminal block.
The concave part for avoiding a contact with the cover of the other said adjacent terminal block when rotating so that the upper part of the said terminal block may be open | released is formed in the said cover. measuring device.

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