JP4921770B2 - Detection sensor, mounting fixture, and detection sensor mounting structure - Google Patents

Description

  The present invention relates to a detection sensor, a fixture, and a detection sensor mounting structure for fixing the detection sensor to a wall surface or the like.

For example, as a detection sensor such as a pressure sensor for detecting the pressure of a fluid, there is known one in which a body case housing a detection means is fixed to a wall surface or the like using, for example, an L-shaped fixture. In general, such detection sensors are often used by arranging a plurality of sensors side by side, and in that case, each of the detection sensors is individually attached to a wall surface or the like. Each detection sensor is fixed by being screwed to.
Utility Model Registration No. 2570845

  The above-described fixture is usually fixed to a wall surface or the like using at least two or more screws. For this reason, when mounting multiple detection sensors, the total number of screws used is the number of detection sensors multiplied by the number of screws (two or more) for fixing one fixture to the wall or the like. If the number of detection sensors to be installed is large, the work of screwing will be much more troublesome.

  The present invention has been completed based on the above circumstances, and an object thereof is to provide a detection sensor, a fixture, and a detection sensor mounting structure capable of easily performing a mounting operation of the detection sensor. To do.

As means for achieving the above object, the invention according to claim 1 provides the means for achieving the above object, and the mounting structure of the detection sensor according to the invention of claim 1 comprises the detection means in the main body case. A detection sensor mounting structure for mounting a housed detection sensor to a mounting surface via a mounting tool, wherein the main body case has a mounting fixture fixing surface, and the mounting tool is a part of the main body case. A main body side fixing portion fixed to the mounting fixture fixing surface, and a mounting surface side fixing portion fixed to the mounting surface, and the mounting surface side fixing portion includes a plurality of mounting means for screwing. When a plurality of the detection sensors and a plurality of attachments fixed to the detection sensors are arranged side by side on the attachment surface, a part of the attachment means included in one attachment and the attachment There is an adjacent fixture in the parallel direction. Is inserted a common thread in the part of the attachment means to allow screwing on the mounting surface that, the detection means is for detecting the pressure of the fluid, the fixture fixing surface, A fluid introduction part for taking in the fluid and a connector fitting part into which an external connector is fitted are provided, and the body-side fixing part of the fixture has a pair of fixing pieces having the screw insertion holes. A feature is that a notch for avoiding an overlap between the fluid introduction part and the connector fitting part is formed between the two fixed pieces .
The attaching means includes a groove or a hole through which the shaft portion of the screw can be inserted.

  The invention of claim 2 is characterized in that, in the invention according to claim 1, the fixture has a shape in which the fixtures arranged in parallel do not interfere with each other in the direction in which the detection sensors are arranged in parallel. .

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the fixture fixing surface of the main body case is provided with a screw hole portion and a positioning portion that can be screwed, and the fixture. In the main body side fixing portion, a positioning portion for positioning the fixture and the main body case relative to each other by fitting into the positioning portion, and a screw insertion through which a screw to be screwed into the screw hole portion is inserted It is characterized in that a hole is provided.

  According to a fourth aspect of the present invention, the positioning portion of the fixture includes a concave portion corresponding to the outer shape of the main body side fixing portion as the positioned portion of the main body case. However, it has characteristics.

  According to a fifth aspect of the present invention, in the attachment fixing surface of the main body case, the positioning portion and the screw hole portion are both at the center of the screw hole portions. It is characterized in that it is arranged symmetrically around one axis perpendicular to the fixture fixing surface, and the fixture can be fixed in a plurality of fixed postures rotated around the axis.

  According to a sixth aspect of the present invention, in the fifth aspect, the position of the screw insertion hole in one fixing posture of the fixture with respect to the fixture fixing surface of the main body case and the screw in another fixing posture. It is characterized in that it is configured so that the position of the insertion hole coincides.

A detection sensor mounting structure according to a seventh aspect of the invention is a detection sensor mounting structure for mounting a detection sensor having a detection means contained in a main body case to a mounting surface via a mounting tool. The case has a fixture fixing surface, and the fixture has a main body side fixing portion fixed to the fixture fixing surface of the main body case, and a mounting surface side fixing portion fixed to the mounting surface. The mounting surface side fixing portion includes an engaging portion and a plurality of mounting means for screwing, and includes a plurality of the detection sensors and a plurality of fixtures fixed to the detection sensors. It is characterized in that, when arranged side by side, the engaging portion of one fixture and the engaging portion of the fixture adjacent to the fixture are engaged with each other.

The mounting structure of the detection sensor according to the invention of claim 8 is a mounting structure of the detection sensor for mounting the detection sensor, in which the detection means is accommodated in the main body case, to the mounting surface via the mounting tool. The case has a fixture fixing surface, and the fixture has a main body side fixing portion fixed to the fixture fixing surface of the main body case, and a mounting surface side fixing portion fixed to the mounting surface. When a plurality of the detection sensors and a plurality of fixtures fixed to the detection sensors are arranged side by side on the attachment surface, the attachment surface-side fixing portion of the one fixture and adjacent to the fixture It is characterized in that a holding member that integrally holds the mounting surface side fixing portion of the mounting tool is provided.

A detection sensor according to a ninth aspect of the invention is characterized in that it is used in the detection sensor mounting structure according to any one of the first to eighth aspects.

A fixture according to a tenth aspect of the invention is characterized in that it is used for the detection sensor mounting structure according to any one of the first to eighth aspects.

<Invention of Claims 1, 9 and 10>
When a plurality of detection sensors and a fixture fixed to each detection sensor are arranged side by side on the mounting surface, the same mounting hole is provided in one fixture and the mounting hole in a fixture adjacent to the fixture. It can be screwed by inserting a screw. By sharing the screws between the adjacent fixtures, the number of screws to be used can be reduced, and the installation work can be facilitated.
<Invention of Claim 1>
By forming the notch portion between the pair of fixing pieces of the main body side fixing portion, it is possible to avoid overlap between the main body side fixing portion, the fluid introduction portion, and the connector fitting portion.

<Invention of Claim 2>
Since the fixtures have a shape in which the fixtures arranged side by side do not interfere with each other in the direction in which the detection sensors are arranged side by side, the interval between the detection sensors can be arranged small.

<Invention of Claim 3>
When fixing the mounting tool to the detection sensor, the positioning part of the main body case and the positioned part of the mounting tool are fitted to each other, and then the screw is inserted into the screw insertion hole. Tighten the screw hole. Thereby, the fixing work of a detection sensor and a fixture can be performed smoothly.

<Invention of Claim 4>
The main body case and the fixture are positioned by fitting the fixing portion on the main body side of the fixture into a recess having a shape corresponding to the outer shape thereof. Thereby, since the attachment direction with respect to the main body case of a fixture can be identified easily and the positioning of a fixture is also easy, work can be performed more smoothly.

<Invention of Claim 5>
Since one type of fixture can be fixed to the main body case in different postures, costs can be reduced compared to the case where fixtures corresponding to each fixed posture are prepared for each piece.

<Invention of Claim 6>
Since the positions of the screw insertion holes when the fixture is fixed to the fixture fixing surface in different postures match, the screw hole portion of the main body case can be used in common. Therefore, the number of screw holes provided in the main body case is reduced, and the detection sensor can be downsized.

<Invention of Claim 7 >
When the plurality of detection sensors and the fixtures fixed to the respective detection sensors are arranged side by side on the attachment surface, the fixtures are held together by engaging the engaging portions of the adjacent fixtures. The number of screws to be used can be reduced, thereby facilitating installation work.

<Invention of Claim 8 >
When a plurality of detection sensors and fixtures fixed to each detection sensor are arranged side by side on the attachment surface, the adjacent fixtures are held by the holding member, so the number of screws to be used can be reduced. Therefore, the installation work can be facilitated.

<Embodiment 1>
Next, Embodiment 1 of the present invention will be described with reference to FIGS.
In the present embodiment, a configuration for attaching the pressure sensor 1 (corresponding to the “detection sensor” of the present invention) to the attachment surfaces W1, W2 using the attachment 20 is illustrated. 1 is a rear view showing a state in which the pressure sensor 1 is mounted on the mounting surface W1, FIG. 2 is a side view thereof, and FIG. 3 is a plan view thereof. 4 is a rear view of the pressure sensor 1, FIG. 5 is a perspective view of the fixture 20, FIG. 6 is a rear view showing a state in which the pressure sensor 1 is attached to the attachment surface W2, and FIG. It is a top view which shows the state which attached the pressure sensor 1 in parallel. In the following description, the left side of FIG. 2 is the front, and the vertical direction is based on FIG.

  The pressure sensor 1 has a configuration in which detection means (not shown) for detecting the pressure of fluid is accommodated in a substantially cubic body case 2. The main body case 2 is made of a synthetic resin and includes a box-shaped front case 3 opened rearward and a substantially square plate-like rear case 4 covering the rear surface, as shown in FIG. A display window (not shown) for displaying the pressure detected by the detecting means and operation buttons 5 for performing various operations are provided on the front surface of the front case 3.

  As shown in FIG. 4, the rear surface of the main body case 2 (the rear surface of the rear case 4) is a square fixture fixing surface 6 to which a fixture 20 described later is fixed. In the center of the fixture fixing surface 6, a fluid introduction part 7 is provided so as to project a fluid as a detection target into the detection means. Further, a connector fitting portion 8 is recessed in the upper center of the fixture fixing surface 6. An external connection connector 10 connected to a circuit board (not shown) in the main body case 2 is disposed inside the connector fitting portion 8, and the external connection connector 10 is connected to a cable end. By fitting and connecting an external connector (not shown) provided, an external power source is input, an external detection signal is output, and the like. In addition, the fixture fixing surface 6 is provided with a pair of screw hole portions 14 that can be screwed with screws 13 at the upper right corner and the lower left corner as viewed from the rear. Further, the fixture fixing surface 6 is provided with a pair of circular positioning holes 15 (corresponding to the “positioning portion” of the present invention) in the upper left corner and the lower right corner as viewed from the rear. The pair of screw holes 14 and the pair of positioning holes 15 are 180 degrees with respect to an axis passing through the center of the fixture fixing surface 6 (the center of the pair of screw holes 14) and orthogonal to the fixture fixing surface 6. They are arranged symmetrically with respect to the distance.

  As shown in FIG. 5, the fixture 20 is formed by bending a metal plate into an L shape, and is fixed to the main body side fixing portion 21 fixed to the fixture fixing surface 6 of the main body case 2 and the mounting surfaces W1 and W2. The mounting surface side fixing portion 22 is formed. The main body side fixing portion 21 has a substantially U shape as a whole, and the width dimension thereof is substantially equal to the width dimension of the main body case 2. The body-side fixing portion 21 includes a pair of left and right fixing pieces 23A and 23B extending upward, and the right-side fixing piece 23A has a length dimension about twice that of the left-side fixing piece 23B when viewed from the rear. is doing. A screw insertion hole 24 through which the shaft portion of the screw 13 can be inserted is provided at the distal end portion of each of the fixing pieces 23A and 23B. The positional relationship between both screw insertion holes 24 corresponds to the positional relationship between the pair of screw hole portions 14 on the fixture fixing surface 6. For this reason, the fixture 20 is a standard in which the mounting surface side fixing portion 22 is on the lower side with respect to the main body side fixing portion 21 by screwing the screws 13 inserted into the screw insertion holes 24 into the screw hole portions 14. The posture can be fixed in two postures: a posture (see FIGS. 1 to 3) and a reversed posture (see FIG. 6) that is inverted from the standard posture. In other words, the position of the screw insertion hole 24 in the standard posture of the fixture 20 is configured to match the position of the screw insertion hole 24 in the reverse posture.

  Further, on the front surface of the fixing piece 23A, a columnar positioning protrusion 25 (which can be fitted in the positioning hole 15 of the fixture fixing surface 6) at the same height as the screw insertion hole 24 of the fixing piece 23B. Corresponding to “positioned part”) is provided protruding. Further, the body-side fixing portion 21 is formed with a notch portion 26 opened upward between the fixing pieces 23A and 23B. As shown in FIG. 1, when the fixture 20 is fixed in a standard posture, a part of the fluid introduction portion 7 overlaps the region of the cutout portion 26, and as shown in FIG. When fixed in the inverted posture, a part of the fluid introduction part 7 and the connector fitting part 8 are arranged so as to overlap the region of the notch part 26. That is, the main body side fixing portion 21 has a shape that does not overlap the fluid introduction portion 7 and the connector fitting portion 8 when the main body side fixing portion 21 is fixed to the fixture fixing surface 6 in either the standard posture or the inverted posture. Yes. In addition, when the fixture 20 is fixed in the inverted posture, the upper portion of the connector fitting portion 8 is largely opened by the notch portion 26. As a result, when the connector is fitted to or detached from the connector fitting portion 8, the fingers can be inserted into the cutout portion 26, so that the operation can be performed smoothly.

  The mounting surface side fixing portion 22 has a rectangular flat plate shape as a whole, and its width dimension is substantially equal to the width dimension of the main body case 2. A pair of mounting grooves 27 (corresponding to the “mounting means” of the present invention) cut into a long and narrow U shape along the left-right direction are formed at the left and right ends of the mounting surface side fixing portion 22. As shown in FIG. 7, each mounting groove 27 is aligned with the mounting groove 27 on the near side of the adjacent mounting tool 20 when the mounting tools 20 are arranged in close contact with each other on the left and right, and both mounting grooves 27 are aligned. 27 becomes one elongate hole communicated with each other. A shaft portion of a screw 28 (specifically, a Semus screw, a screw with a flat washer, or the like) can be inserted into each mounting groove 27, and the screw 28 is provided in the mounting surface W1, W2 (see FIG. The mounting surface side fixing portion 22 is fixed to the mounting surfaces W1 and W2 by tightening the screws.

Next, a procedure for attaching the pressure sensor 1 using the fixture 20 will be described.
First, in order to fix the fixture 20 to the pressure sensor 1, the front side of each of the fixing pieces 23 </ b> A and 23 </ b> B of the main body side fixing portion 21 is pressed against the fixture fixing surface 6 of the main body case 2, and the positioning protrusion 25 is set. It fits in the positioning hole 15. At this time, when the fixture 20 is fixed in the standard posture, the positioning protrusion 25 is fitted into the lower right positioning hole 15 when viewed from the rear (see FIG. 1), and the fixture 20 is fixed in the inverted posture. For this, the positioning protrusion 25 is fitted into the upper left positioning hole 15 as seen from the rear (see FIG. 6). Subsequently, the fixture 20 is rotated around the positioning projection 25 while pressing the main body side fixing portion 21 against the fixture fixing surface 6, and the screw insertion holes 24 of the fixture 20 and the screw holes 14 of the main body case 2 are rotated. Adjust the position with. And the fixture 20 is fixed to the main body case 2 by screwing the screw 13 inserted in each screw insertion hole 24 in that state into the screw hole portion 14. Since the positioning protrusion 25 is fitted in the positioning hole 15 in this way, the movement of the fixture 20 relative to the main body case 2 is limited only to the rotation direction around the positioning protrusion 25. The alignment operation is easier than when positioning is not performed (when the fixture 20 moves up, down, left, and right with respect to the main body case 2).

  When mounting one pressure sensor 1 alone, as shown in FIG. 1 or FIG. 6, the mounting surface side fixing portion 22 of the mounting tool 20 is applied to the mounting surfaces W1 and W2, and a pair of screws 28 are mounted. The screw 28 is inserted into the innermost end (innermost position) of the groove 27 (see FIG. 3), and both screws 28 are screwed to the mounting surfaces W1, W2. As a result, the pressure sensor 1 is fixed on the mounting surfaces W1, W2 via the fixture 20.

  When mounting a plurality of pressure sensors 1 in parallel, as shown in FIG. 7, the pressure sensors 1 to which the fixtures 20 are fixed are left and right in close contact with each other on the mounting surfaces W1 and W2. Place them side by side. Thereby, the attachment grooves 27 on one side of the adjacent attachments 20 are aligned. And about the thing located in the both ends in the row direction (left-right direction) of the fixture 20 among each attachment groove | channel 27, the screw | thread 28 is penetrated to the back end (innermost position) of each attachment groove | channel 27, and an attachment surface Tighten to the screw holes of W1 and W2. In addition, for each of the mounting grooves 27 aligned with the adjacent mounting groove 27, by inserting a single screw 28 in the center of both mounting grooves 27 and screwing the mounting surfaces W1 and W2, The hole edge portions on both sides of the aligned mounting grooves 27 are screwed. As a result, the number of screws 28 required to attach all the pressure sensors 1 is reduced as compared with the case where each pressure sensor 1 is attached alone (when two screws 28 are used per unit). FIG. 7 shows an example in which three pressure sensors 1 are attached with four screws 28. As described above, according to this embodiment, generally, N pressure sensors 1 can be attached in parallel by N + 1 screws 28.

  As described above, according to this embodiment, when the plurality of pressure sensors 1 and the fixtures 20 fixed to the pressure sensors 1 are arranged side by side on the attachment surfaces W1 and W2, the one fixture 20 has. A common screw 28 can be inserted and fixed to the mounting groove 27 and the mounting groove 27 of the mounting tool 20 adjacent to the mounting tool 20. By sharing the screws 28 between the adjacent fixtures 20, the number of screws 28 to be used can be reduced, thereby facilitating the mounting operation.

  Moreover, since the fixture 20 has a shape in which the fixtures 20 arranged side by side do not interfere with each other in the direction in which the pressure sensors 1 are arranged, the interval between the pressure sensors 1 can be arranged small.

  Further, when the fixture 20 is fixed to the pressure sensor 1, the positioning hole 15 of the main body case 2 and the positioning projection 25 of the fixture 20 are fitted to each other, and the screw insertion hole is set. The screw 13 inserted through the screw 24 is screwed into the screw hole 14 of the main body case 2. Thereby, the fixing operation | work with the pressure sensor 1 and the fixture 20 can be performed smoothly.

  Moreover, since one type of fixture 20 can be fixed with respect to the main body case 2 in different postures, costs can be reduced as compared with a case where fixtures corresponding to each fixed posture are prepared for each piece.

  Furthermore, since the positions of the screw insertion holes 24 when the fixture 20 is fixed to the fixture fixing surface 6 in different postures match, the screw hole portion 14 of the main body case 2 can be used in common. Accordingly, the number of screw hole portions 14 provided in the main body case 2 is reduced, and the pressure sensor 1 can be downsized.

  Further, by forming a notch 26 between the pair of fixing pieces 23A, 23B of the main body side fixing portion 21, the main body side fixing portion 21, the fluid introduction portion 7, and the connector fitting portion 8 are prevented from overlapping. can do.

<Embodiment 2>
Next, a second embodiment will be described with reference to FIGS.
8 is a perspective view of the fixture 30, FIG. 9 is a rear view of the pressure sensor 31, and FIG. 10 shows a state in which the pressure sensor 31 is attached to the attachment surface W1 by the fixture 30 fixed in a standard posture. FIG. 11 is a plan view of the rear view and FIG. In the following description, the same components as those in the first embodiment are denoted by the same reference numerals and description thereof is omitted.

  As shown in FIG. 8, the fixture 30 of the present embodiment includes a main body side fixing portion 33 (corresponding to the “positioned portion” of the present invention) having a pair of left and right fixing pieces 32 extending upward. Yes. Both the fixing pieces 32 have the same length dimension, and a screw insertion hole 24 is formed at the tip thereof. The main body side fixing portion 33 is provided with a U-shaped cutout portion 34 opened upward between the two fixing pieces 32.

  On the other hand, the fixture fixing surface 37 provided on the rear surface of the main body case 36 in the pressure sensor 31 has an annular recess 38 (corresponding to the “positioning portion” of the present invention) as shown in FIGS. Is provided. The concave portion 38 is provided inside the pair of side wall portions 39 provided along both side edge portions of the fixture fixing surface 37 and around the vertically elongated protrusion 40 provided in the center of the fixture fixing surface 37. Is formed. The protrusion 40 is provided with a fluid introduction part 7 on the lower side and a connector fitting part 8 on the upper side. A pair of screw holes 41 are formed on the bottom surface of the recess 38 at the center in the vertical direction and on both the left and right sides of the protrusion 40. The concave portion 38 and the pair of screw hole portions 41 are vertically symmetric, and are disposed point-symmetrically at an interval of 180 degrees with respect to the central axis of the fixture fixing surface 37. The concave portion 38 has a shape corresponding to the outer shape of the main body side fixing portion 33, and as shown by a solid line in FIG. 10, the main body side fixing portion 33 is fitted into the substantially lower half portion of the concave portion 38, and The main body side fixing portion 33 is positioned in the standard posture by bringing the inner periphery into contact with the outer periphery of the protrusion 40, and the main body side fixing portion 33 is positioned substantially in the upper half of the recess 38 as shown by a two-dot chain line in FIG. The main body side fixing portion 33 is positioned in the inverted posture by fitting the inner periphery of the notch 34 to the outer periphery of the protrusion 40. Thus, by positioning the main body side fixing portion 33 with respect to the main body case 36, the screw insertion holes 24 of the respective fixing pieces 32 are aligned with the screw hole portions 41 of the main body case 36. Can be fixed to.

  As described above, according to the present embodiment, the main body case 36 and the fixture 30 are positioned by engaging the main body side fixing portion 33 of the fixture 30 in the recess 38 having a shape corresponding to the outer shape thereof. Thereby, since the attachment direction with respect to the main body case 36 of the fixture 30 can be identified easily and the positioning of the fixture 30 is also easy, work can be performed more smoothly.

<Embodiment 3>
Next, Embodiment 3 will be described with reference to FIGS.
FIG. 12 is a rear view showing a state in which a plurality of pressure sensors 50 are attached in parallel, and FIG. 13 is a plan view thereof. In the following description, the same components as those in the above embodiments are denoted by the same reference numerals and description thereof is omitted.

  The fixture 51 of the present embodiment includes a main body side fixing portion 33 and an attachment surface side fixing portion 52 having the same shape as that of the second embodiment. The main body side fixing portion 33 is a pressure sensor by a pair of screws 13. 50 is fixed to a fixture fixing surface 54 provided on the back surface of the main body case 53. The mounting surface side fixing portion 52 has a plate shape that is elongated to the left and right as a whole, and both ends of the mounting surface side fixing portion 52 protrude outward from the width dimension of the main body case 53. 56, the right end is a stepped portion 57 that is raised by one step. Each of the protruding portion 56 and the stepped portion 57 is provided with a circular mounting hole 58 (corresponding to the “mounting means” of the present invention) through which the shaft portion of the screw 28 can be inserted.

  When mounting a plurality of pressure sensors 50 in parallel on the mounting surface W1, the pressure sensors 50 are arranged on the mounting surface W1 side by side with a predetermined interval in the left-right direction. At this time, of the fixtures 51 adjacent to the left and right, the protruding portion 56 of the right fixture 51 as viewed from the rear is inserted between the stepped portion 57 of the left fixture 51 and the mounting surface W1, The mounting hole 58 of the protruding portion 56 and the mounting hole 58 of the stepped portion 57 are aligned. Therefore, the overhanging portion 56 and the stepped portion 57 that overlap in the vertical direction can be screwed with the single screw 28. In addition, the protruding portion 56 of the fixture 51 located at the left end when viewed from the rear among the plurality of fixtures 51 arranged in parallel is screwed by the screw 28 in a state where it does not overlap with the other stepped portions 57. Further, the stepped portion 57 of the mounting tool 51 located at the right end when viewed from the rear among the plurality of mounting tools 51 arranged in parallel has a spacer 59 having a mounting hole 59A interposed between the mounting surface W1 and the stepped portion 57. A single screw 28 is inserted into the mounting hole 58 and the mounting hole 59A of the spacer 59 and is screwed. Also in this embodiment, the number of screws 28 to be used can be reduced by sharing the screws 28 between the adjacent fixtures 51.

<Embodiment 4>
Next, a fourth embodiment will be described with reference to FIGS.
FIG. 14 is a plan view showing a state in which one pressure sensor 50 is independently attached using a fixture 60A, and FIG. 15 is a diagram showing a pair of pressure sensors 50 arranged in parallel using fixtures 60A and 60B. It is a top view which shows the state attached. In the following description, the same components as those in the above embodiments are denoted by the same reference numerals and description thereof is omitted.

  In this embodiment, the example which attaches the pressure sensor 50 using two types of attachments 60A and 60B is shown. As shown in FIG. 15, the fixtures 60A and 60B are respectively provided with flat mounting surface side fixing portions 61A and 61B. Each mounting surface side fixing portion 61A and 61B has a shaft portion of a screw 28 in the center. Is provided with one circular mounting hole 62 (corresponding to the “mounting means” of the present invention). An engaging portion 63 is provided at the left end when viewed from the rear of the mounting surface side fixing portion 61A, and an engaging portion 64 is provided at the right end when viewed from the rear of the mounting device side fixing portion 61B. Is provided. The engaging portions 63 and 64 are configured such that the projections 65 and the recesses 66 are alternately arranged in the front-rear direction, and the positional relationship between the projections 65 and the recesses 66 is opposite to each other. The engaging part 63 can be engaged with the engaging part 64 of the other fixture 60 in a state where the protrusions 65 are alternately meshed with each other.

  When one pressure sensor 50 is attached alone, as shown in FIG. 14, one screw 28 is inserted into the attachment hole 62 of the fixtures 60A and 60B and screwed, and the other screw 28 is attached. Is inserted into one of the concave portions 66 of the engaging portions 63 and 64 and screwed. Thus, the recessed part 66 has the function which served as the "engagement part" and the "attachment means" of this invention.

  Moreover, when attaching a pair of pressure sensor 50 in parallel, as shown in FIG. 15, the engaging parts 63 and 64 of the fixtures 60A and 60B arrange | positioned adjacently are engaged. Then, the screws 28 are inserted into the attachment holes 62 of the attachments 60A and 60B one by one and fixed. Thus, each fixture 60A, 60B is screwed in a state in which the fixtures 60A, 60B are engaged with the adjacent fixtures 60A, 60B, so that each fixture 60A, 60B is in a state where the rotation around the screw 28 is restricted. Retained. As described above, according to the present embodiment, when a plurality of pressure sensors 50 are attached in parallel, one pressure 28 can be attached per unit, and the number of screws 28 to be used can be reduced. . Therefore, the mounting operation of the pressure sensor 50 can be facilitated.

<Embodiment 5>
Next, Embodiment 5 will be described with reference to FIG.
FIG. 16 is a plan view showing a state in which a pair of pressure sensors 50 are attached in parallel. In the following description, the same components as those in the above embodiments are denoted by the same reference numerals and description thereof is omitted.

  The fixture 70 of the present embodiment includes a mounting surface side fixing portion 71 having a rectangular flat plate shape. The attachment surface side fixing portion 71 is provided with attachment holes 72 through which the shaft portions of the screws 28 can be inserted. When attaching one pressure sensor 50 alone, the screw 28 is inserted into each of the four attachment holes 72 and the attachment surface side fixing portion 71 is screwed. Moreover, when attaching a pair of pressure sensor 50, the holding member 73 is used. The holding member 73 has a rectangular plate-like main body portion 75 having a pair of mounting holes 74 through which the shaft portion of the screw 28 can be inserted, and downward from the front and rear ends of the main body portion 75 (rear side in the drawing in FIG. 16). And a pair of holding pieces 76 extended. Between the pair of holding pieces 76, the end portion of the attachment surface side fixing portion 71 can be fitted. In order to attach the pair of pressure sensors 50, a pair of attachments provided at the ends of the attachment surface side fixing portions 71 of the attachment 70 arranged side by side on the side away from the other attachment 70. The screw 28 is inserted into the hole 72 and screwed. Then, the pair of mounting holes 72 provided at the end (center side) near the other mounting tool 70 in each mounting surface side fixing portion 71 are not screwed but are held at the ends from above. The member 73 is fitted, and the screw 28 is inserted into the pair of mounting holes 74 of the holding member 73 and screwed. Thereby, since the center side edge part in each attachment surface side fixing | fixed part 71 is hold | maintained by the holding member 73, the number of the screws 28 to be used can be reduced and attachment work of the pressure sensor 50 is made easy. Can do.

<Embodiment 6>
Next, Embodiment 6 will be described with reference to FIG.
FIG. 17 is a rear view showing a state in which a pair of pressure sensors 50 are attached in parallel. In the following description, the same components as those in the above embodiments are denoted by the same reference numerals and description thereof is omitted.

  The fixture 80 of this embodiment includes a plate-like attachment surface side fixing portion 81. The mounting surface side fixing portion 81 includes circular mounting holes 82 through which the shaft portion of the screw 28 can be inserted at both left and right ends. For this reason, when attaching one pressure sensor 50 independently, the attachment surface side fixing | fixed part 81 can be screwed by inserting the screw 28 in each of a pair of attachment holes 82. FIG. In addition, the attachment surface side fixing portion 81 is formed with a pair of engaging projections 83 cut upward.

  Moreover, in this embodiment, when attaching a pair of pressure sensor 50, the flat holding member 84 is used. The holding member 84 has an attachment hole 85 through which the shaft portion of the screw 28 can be inserted in the center, and has engagement holes 86 on both the left and right sides of which the engagement protrusions 83 can be closely fitted. When attaching the pair of pressure sensors 50, the attachment holes provided at the ends of the attachment surface side fixing portions 81 of the attachment devices 80 arranged side by side on the side away from the other attachment device 80. The screw 28 is inserted into 82 and screwed. Then, the holding member 84 is placed on the upper surfaces of the both attachment surface side fixing portions 81, and the engagement protrusions 83 are fitted into the respective engagement holes 86. Thereby, both the attachment surface side fixing | fixed part 81 are hold | maintained integrally. Lastly, the screw 28 is inserted into the mounting hole 85 of the holding member 84 and screwed. Also according to the present embodiment, the number of screws 28 to be used can be reduced, and therefore the pressure sensor 50 can be easily attached.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the first embodiment, a protrusion is provided as a positioned portion on the fixture and is fitted in a hole as a positioning portion on the main body case side. Conversely, a protrusion as a positioning portion is provided on the main body case side. It is good also as a structure fitted to the hole as a to-be-positioned part by the side of a fixture. Moreover, you may provide a positioning part and a to-be-positioned part in multiple places.
(2) In the third to sixth embodiments, the plurality of sensors are arranged so as to be separated from each other. However, as in the first embodiment, the sensors may be arranged so that adjacent sensors can be placed in close contact with each other. good.
(3) In the fourth embodiment, a pair of sensors are mounted in parallel. However, three or more sensors may be mounted in parallel. In this case, with respect to the fixtures other than the fixtures located at both ends in the parallel direction, the engaging portions may be provided on both sides in the parallel direction.
(4) In each of the above embodiments, the example in which the present invention is applied to the pressure sensor mounting structure has been shown. However, the present invention is not limited to a pressure sensor such as a photoelectric sensor, a proximity sensor, an ultrasonic sensor, or a capacitance sensor. The present invention can also be applied to a detection sensor mounting structure for measuring a physical quantity.

The rear view which shows the state which attached the pressure sensor on the attachment surface with the fixture fixed in the standard attitude | position in Embodiment 1 of this invention. Its side view The plan view Rear view of pressure sensor Perspective view of fixture Rear view showing a state in which the pressure sensor is attached to the mounting surface with a fixture fixed in a reverse orientation. A plan view showing a state in which a plurality of pressure sensors are mounted side by side The perspective view of the fixture in Embodiment 2. Rear view of pressure sensor Rear view showing a state in which the pressure sensor is mounted on the mounting surface with a fixture fixed in a standard posture The cross-sectional view The rear view which shows the state which attached the several pressure sensor in parallel in Embodiment 3. The plan view The top view which shows the state which attached the pressure sensor independently in Embodiment 4. A plan view showing a state in which a pair of pressure sensors are mounted in parallel The top view which shows the state which attached in parallel the pair of pressure sensor in Embodiment 5. The top view which shows the state which attached the pair of pressure sensor in parallel in Embodiment 6.

Explanation of symbols

1, 31, 50, 60 ... Pressure sensor (detection sensor)
2, 36, 53 ... Body case 6, 37, 54 ... Fixing fixture fixing surface 7 ... Fluid introduction part 8 ... Connector fitting part 13 ... Screw (screw to be screwed into the screw hole)
14, 41 ... Screw hole 15 ... Positioning hole (positioning part)
20, 30, 51, 70, 80 ... fixture 21 ... main body side fixing portions 22, 52, 61, 71, 81 ... mounting surface side fixing portions 23A, 23B, 32 ... fixing piece 24 ... screw insertion hole 25 ... positioning projection (Positioned part)
26, 34 ... notch 27 ... mounting groove (mounting means)
28 ... Screw 33 ... Main body side fixing part (positioned part)
38 ... concave portion (positioning portion)
58, 62, 72, 82 ... mounting holes (mounting means)
63, 64 ... engaging portion 66 ... concave portion (attachment means)
73, 84 ... Holding members W1, W2 ... Mounting surface

Claims (10)

A detection sensor mounting structure for mounting a detection sensor containing detection means in a main body case to a mounting surface via a mounting tool,
The main body case has a fixture fixing surface,
The fixture has a main body side fixing portion fixed to the fixture fixing surface of the main body case, and an attachment surface side fixing portion fixed to the mounting surface,
The mounting surface side fixing portion has a plurality of mounting means for screwing, and a plurality of the detection sensors and a plurality of mounting tools fixed to the detection sensors are arranged side by side on the mounting surface. The mounting is performed by inserting a common screw into a part of the mounting means of the one mounting tool and a part of the mounting means of the mounting tool adjacent to the mounting tool in the parallel direction. It can be screwed to the surface ,
The detection means detects the pressure of the fluid,
The fixture fixing surface is provided with a fluid introduction part that takes in the fluid and a connector fitting part into which an external connector is fitted,
The main body side fixing portion of the fixture has a pair of fixing pieces having the screw insertion holes, and between the two fixing pieces, in order to avoid an overlap between the fluid introducing portion and the connector fitting portion. A detection sensor mounting structure in which a notch is formed . The detection sensor mounting structure according to claim 1, wherein the mounting tool has a shape in which mounting tools provided in parallel do not interfere with each other in a direction in which the detection sensors are provided in parallel. The fixture fixing surface of the main body case is provided with a screw hole portion and a positioning portion that can be screwed,
The body-side fixing portion of the fixture is inserted with a positioned portion that positions the fixture and the body case relative to each other by fitting with the positioning portion, and a screw that is screwed into the screw hole portion. 3. The detection sensor mounting structure according to claim 1, wherein a screw insertion hole is provided. The detection sensor mounting structure according to claim 3, wherein the positioning portion of the fixture includes a concave portion having a shape corresponding to an outer shape of the main body side fixing portion as the positioned portion of the main body case. . In the fixture fixing surface of the main body case, the positioning portion and the screw hole portion are both arranged symmetrically around one axis perpendicular to the fixture fixing surface at the center of the screw hole portions, The detection sensor mounting structure according to claim 3 or 4, wherein the fixture can be fixed in a plurality of fixed postures rotated around the axis. The position of the screw insertion hole in one fixing posture of the fixture relative to the fixture fixing surface of the main body case is configured to match the position of the screw insertion hole in another fixing posture. 6. The detection sensor mounting structure according to claim 5, wherein: A detection sensor mounting structure for mounting a detection sensor containing detection means in a main body case to a mounting surface via a mounting tool,
The main body case has a fixture fixing surface,
The fixture has a main body side fixing portion fixed to the fixture fixing surface of the main body case, and an attachment surface side fixing portion fixed to the mounting surface,
The mounting surface side fixing portion includes an engaging portion and a plurality of screwing mounting means, and the plurality of detection sensors and a plurality of mounting fixtures fixed to the detection sensors on the mounting surface. An attachment structure for a detection sensor, wherein when arranged side by side, an engaging portion of one fixture and an engaging portion of a fixture adjacent to the fixture are engaged with each other. A detection sensor mounting structure for mounting a detection sensor containing detection means in a main body case to a mounting surface via a mounting tool,
The main body case has a fixture fixing surface,
The fixture has a main body side fixing portion fixed to the fixture fixing surface of the main body case, and an attachment surface side fixing portion fixed to the mounting surface,
When a plurality of the detection sensors and a plurality of fixtures fixed to the detection sensors are arranged side by side on the attachment surface, the attachment surface side fixing portion of the one fixture and an attachment adjacent to the fixture A mounting structure for a detection sensor, comprising a holding member that integrally holds a mounting surface side fixing portion of the tool. The detection sensor used for the attachment structure of the detection sensor in any one of Claims 1-8 . The fixture used for the attachment structure of the detection sensor in any one of Claims 1-8 .

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