JP2015152489A - Sensor device to be fixed on glass surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sensor device which enables single-handed one-step installation, and can be easily installed in a small indoor space, such as a vehicle.SOLUTION: A sensor device 10 includes fixing means which comprises: a spring 17 arranged in one of a housing 12 and a bracket 11, and having a locking end 17a formed at an end; and a fixing rib 13 arranged in the other one and having a guide part 13a for guiding the locking end 17a and a locking part 13b formed on an opposite surface. As the housing 12 is brought close to the bracket 11 in a direction perpendicular to a glass surface, the locking end 17a of the spring 17 is guided by the guide part 13a of the fixing rib 13, to compress the spring 17 in a direction parallel to the glass surface. When the housing 12 is housed, the locking end 17a is released from the guide part 13a, to extend the spring 17 in the direction parallel to the glass surface, thereby locking and fixing the locking end 17a of the spring 17 to the locking part 13b of the fixing rib 13.

Description

  The present invention relates to a glass surface mounting sensor device (hereinafter abbreviated as a sensor device) used by being mounted on a glass surface.

  As the sensor device, for example, there is a raindrop sensor device that is used by being mounted on the indoor surface of a windshield glass of an automobile. A typical raindrop sensor device optically detects raindrops adhering to the windshield glass. The amount of light reflected by the amount of raindrops that irradiates the glass from the indoor side of the automobile and adheres to the glass surface outside the vehicle. Detects rainfall using the phenomenon that is modulated. In this raindrop sensor device, it is important to increase the detection accuracy that no air layer is interposed in the light path that returns from the light irradiation part to the light receiving part through the outer surface of the windshield glass. For this reason, a raindrop sensor with a built-in light irradiating section and a light receiving section is pressed and brought into close contact with the surface of glass through a soft translucent sheet, and the raindrop sensor device is mounted on the glass surface. Such a raindrop sensor device mounting structure on a glass surface is disclosed in, for example, Japanese Unexamined Patent Application Publication No. 2007-256109 (Patent Document 1) and Japanese Unexamined Patent Application Publication No. 2008-151769 (Patent Document 2).

  FIG. 13 is a cross-sectional view showing the spring length direction of the raindrop sensor device (rain sensor) disclosed in Patent Document 1. As shown in FIG.

  The rain sensor 90 shown in FIG. 13 has an outer housing 92, and the outer housing 92 has an inner housing 94, a leaf spring 97, a fixing member 93, and a fixing device 91.

  The outer housing 92 is a substantially square case and has a lower end window 92 a for opening the entire surface toward the windshield glass 95 and for inserting the fixing member 93. An inner housing 94 formed in a block shape is fitted in the outer housing 92. The inner housing 94 includes an optical path system 94a for optically detecting raindrops from the passenger compartment side, and a circuit board 94b on which a circuit for receiving and receiving infrared light to detect raindrops is mounted. The optical path system 94a of the inner housing 94 is pressed against the windshield glass 95 through a silicon sheet.

  The fixing device 91 is erected on both the left and right sides of a rectangular frame-shaped main body frame portion 91a that surrounds the optical path system 94a of the inner housing 94 and is bonded to the windshield glass 95, and a main body frame portion 91a that is perpendicular to the paper surface. And a locking portion 91b which is a pair of U-shaped claws. The fixing member 93 has a pair of locked portions 93a and a tapered spring spring biasing portion 93b on both sides in the left-right direction perpendicular to the paper surface. The locked portion 93a is fitted into the locking portion 91b of the fixing device 91 from below, and an outer housing 92 that engages with the locked portion 93a is supported so as not to move forward and backward with respect to the locking portion 91b. The Further, the leaf spring urging portion 93b acts to curve the leaf spring 97 supported on the left and right sides of the inner housing 94 toward the windshield glass 95, so that the optical path system 94a is directed in advance toward the silicon sheet. It is pressed with a predetermined pressing force.

  FIG. 14 is a perspective view of a raindrop sensor device (rain sensor) disclosed in Patent Document 2.

  A rain sensor 80 shown in FIG. 14 includes a housing portion 82 that houses the sensor element, and a mounting frame 81 that is attached to the indoor side of the windshield glass and that houses the housing portion 82. The two fixing devices provided with the lever 83 and the elastic bracket 87 are attached to the housing portion 82 so as to face each other on the housing portion 82. The lever 83 is pivotable about an axis extending along the short side of the housing 12. The elastic bracket 87 has one end portion that is pivotally connected to the lever 83, and the other end of the elastic bracket 87 has two protrusions 87a formed as engaging members. The two protrusions 87 a cooperate with two engaging portions 81 a provided on the attachment frame 81 to fix the housing portion 82 to the attachment frame 81. In FIG. 14, the left side shows a state in which the protruding portion 87 a of the elastic bracket 87 is not engaged with the engaging portion 81 a of the mounting frame 81, and the right side turns the lever 83 so that the protruding portion 87 a of the elastic bracket 87 is attached to the mounting frame 81. The state which engaged with the engaging part 81a of this is shown.

JP 2007-256109 A JP 2008-151769 A

  The raindrop sensor device of FIGS. 13 and 14 requires the following operations when mounted on a glass surface. That is, while pressing the outer housing 92 and the housing part 82 toward the glass surface (1) indicated by the white arrow with one hand, the fixing member 93 and the lever 83 apply forces in different directions with the other hand. In addition to the above, it is necessary to perform the fixing operation (2). The two operations performed with both hands are performed in a narrow indoor space of the automobile, and depending on the position where the raindrop sensor device is attached to the windshield glass, the operation is difficult.

  Therefore, the present invention provides a sensor device that is mounted on a glass surface and can be mounted by one-touch operation of one hand, and can be easily mounted even in a narrow indoor space such as an automobile. It is aimed.

  The sensor device according to the present invention includes a housing, a bracket, and a fixing means. The housing accommodates the sensor inside. The bracket is bonded to a glass surface to form a housing portion that houses the housing. Further, the fixing means fixes the housing to the housing portion of the bracket.

  The fixing means includes a spring provided on one of the housing and the bracket and a fixing rib provided on the other of the housing and the bracket. The spring has a locked end at the end. The fixing rib is formed with a guide portion for guiding the locked end of the spring when the housing is accommodated in the accommodating portion of the bracket, and an engaging portion on the opposite surface of the guide portion.

  And the said sensor apparatus is comprised as follows. As the housing is brought closer to the housing portion of the bracket from the direction perpendicular to the glass surface, the locked end of the spring is guided to the guide portion of the fixing rib, and the spring contracts in the direction parallel to the glass surface. When the housing is accommodated in the bracket accommodating portion, the locked end of the spring is released from the guide portion of the fixing rib, the spring extends in a direction parallel to the glass surface, and the locked end of the spring is fixed. It is configured to be locked and fixed to the locking portion of the rib.

  The sensor device is a sensor device that is used by being mounted on a glass surface, such as various sensor devices that are mounted on a windshield glass of an automobile.

  In the conventional sensor device, as described in the problem column, when the body of the sensor device is mounted on the glass surface, the force is applied in a different direction with the other hand while pressing the housing against the glass surface with one hand. It was necessary to perform a fixed operation. These two operations performed with both hands are difficult operations in a narrow indoor space such as an automobile.

  On the other hand, in the above sensor device, the following configuration is adopted as a fixing means to the bracket of the housing that houses the sensor so that the sensor device can be mounted only by pressing the glass surface. That is, it is a structure which consists of a spring with a locked end formed at the end, a guide portion for guiding the locked end of the spring, and a fixed rib with a locking portion formed on the opposite surface of the guide portion. The spring and the fixing rib are divided into a housing and a bracket and are provided at predetermined corresponding positions, and are interlocked as follows when the sensor device is pressed against the glass surface. That is, when the housing is brought close to the bracket from a direction perpendicular to the glass surface, the locked end of the spring is guided to the guide portion of the fixing rib, and the spring contracts in a direction parallel to the glass surface. When the housing is accommodated in the bracket, the locked end of the spring is released from the guide portion of the fixed rib, the spring extends in a direction parallel to the glass surface, and the locked end of the spring is engaged with the fixed rib. Locked to the stop. In this way, the sensor device can be mounted on the glass surface simply by pressing the housing that houses the sensor against the glass surface (bracket) with one hand. Therefore, the sensor device can be easily mounted on the glass surface as compared with the conventional sensor device, and the working time required for mounting can be shortened.

  As described above, the sensor device is a sensor device that is mounted on a glass surface and can be mounted by one-touch operation of one hand, and can be easily mounted even in a narrow indoor space such as an automobile. It is a device.

  The housing of the sensor device may have a typical substantially rectangular parallelepiped shape. In this case, in order to make the pressing force to the glass surface (bracket) of the housing that houses the sensor uniform, the fixing means is a set of rectangular parallelepiped shapes in a state where the housing is housed in the housing portion of the bracket. It is preferable to arrange each on the side surface. Furthermore, in this case, it is preferable that the fixing means is configured to be symmetrical with respect to a center line perpendicular to the glass surface of the side surface in a state where the housing is accommodated in the accommodating portion.

  As described above, the spring and the fixing rib constituting the fixing means for the housing and the bracket are divided into the housing and the bracket, and are respectively provided at predetermined corresponding positions. For example, a configuration in which the spring is provided in the housing and the fixing rib is provided in the bracket may be used, or conversely, a configuration in which the spring is provided in the bracket and the fixing rib is provided in the housing may be employed.

  For example, when a spring is provided in a substantially rectangular parallelepiped housing, the fulcrum of the spring is preferably disposed at a position away from the glass surface from the center on the center line of the side surface. According to this, compared with the case where the fulcrum of the spring is arranged at a position closer to the glass surface than the center on the center line of the side surface, a stronger pressing force can be generated when the housing is fixed to the bracket. Can be securely fixed without interposing an air layer therebetween. For example, a torsion spring or a leaf spring is suitable for the spring.

  As described above, the sensor device can be mounted by one-touch operation of one hand, and can be easily and reliably mounted on the glass surface. Therefore, the said sensor apparatus is suitable for the sensor apparatus with which the said glass surface is the indoor surface of the windshield glass of a motor vehicle, and mounts | wears in the narrow indoor space like a motor vehicle. For example, the sensor device is suitable as a raindrop sensor device in which a housing is pressed and fixed to a glass surface via a silicon sheet and an appropriate pressing force is required. However, the present invention is not limited to this, and the sensor device can also be applied to a humidity sensor device incorporating a temperature sensor, a laser radar device, a front monitoring camera device, and the like.

It is the figure which showed typically the state before mounting | wearing to the glass surface of the sensor apparatus 10, (a) is from the spring 17 and the fixing rib 13 of the sensor apparatus 10 seen from the Y direction orthogonal to a glass surface (Z direction). It is the front view by which the fixing means which becomes and (b) is the side view seen from the X direction. It is the figure which expanded and showed the center part of the spring 17 shown in FIG. 1, (a) is the front view seen from the Y direction, (b) is the top view seen from the Z direction. It is the figure which showed the attachment process to the glass surface of the sensor apparatus 10, (a) is the figure which showed the state before the attachment to a glass surface, (b) is the figure which showed the state in the middle of attachment. (C) is the figure which showed the state after mounting | wearing. It is the figure which showed typically the state before mounting | wearing on the glass surface of the sensor apparatus 20, (a) is the front view seen from the Y direction by which the fixing means which consists of the spring 27 and the fixing rib 23 of the sensor apparatus 20 is arrange | positioned. (B) is a side view seen from the X direction. It is the perspective view which expanded and showed the spring 27 shown in FIG. It is the figure which showed the attachment process to the glass surface of the sensor apparatus 20, (a) is the figure which showed the state before the attachment to a glass surface, (b) is the figure which showed the state in the middle of attachment. Yes, (c) is a diagram showing a state after mounting. It is the figure which showed typically the state before mounting | wearing on the glass surface of the sensor apparatus 30, and is the front view seen from the Y direction by which the fixing means which consists of the spring 37 and the fixing rib 33 of the sensor apparatus 30 was arrange | positioned. It is the perspective view which expanded and showed the spring 37 shown in FIG. It is the figure which showed the attachment process to the glass surface of the sensor apparatus 30, (a) is the figure which showed the state before the attachment to a glass surface, (b) is the figure which showed the state in the middle of attachment. Yes, (c) is a diagram showing a state after mounting. It is the figure which showed typically the state before mounting | wearing on the glass surface of the sensor apparatus 40, and is the front view seen from the Y direction by which the fixing means which consists of the spring 47 and the fixing rib 43 of the sensor apparatus 40 was arrange | positioned. It is the perspective view which expanded and showed the spring 47 shown in FIG. It is the figure which showed the attachment process to the glass surface of the sensor apparatus 40, (a) is the figure which showed the state before the attachment to a glass surface, (b) is the figure which showed the state in the middle of attachment. Yes, (c) is a diagram showing a state after mounting. In the raindrop sensor device (rain sensor) currently indicated by patent documents 1, it is a sectional view showing the spring length direction. It is a perspective view of the raindrop sensor apparatus (rain sensor) currently disclosed by patent document 2. FIG.

  Hereinafter, embodiments of a sensor device according to the present invention will be described with reference to the drawings.

  FIG. 1 is an example of the present invention and is a diagram schematically showing a state before the sensor device 10 is mounted on a glass surface. (A) is the front view by which the fixing means which consists of the spring 17 and the fixing rib 13 of the sensor apparatus 10 seen from the Y direction orthogonal to the glass surface (Z direction) shown in the figure was arrange | positioned, (b) These are side views seen from the X direction. Note that the sensor device 10 of FIG. 1, the sensor device 90 of FIG. 13, and the sensor device 80 of FIG.

  2 is an enlarged view of the central portion of the spring 17 shown in FIG. 1, wherein (a) is a front view seen from the Y direction, and (b) is a top view seen from the Z direction. It is. 3 is a diagram showing a process of mounting the sensor device 10 on the glass surface, (a) is a diagram showing a state before mounting on the same glass surface as FIG. 1, and (b) These are the figures which showed the state in the middle of mounting | wearing, and (c) is the figure which showed the state after mounting | wearing.

  A sensor device 10 shown in FIG. 1 is a raindrop sensor device used in the same manner as the sensor devices 90 and 80 shown in FIGS. 13 and 14 and mounted on the interior surface of a windshield glass of an automobile. The sensor device 10 of FIG. 1 includes a housing 12, a bracket 11, a fixing means including a spring 17 and a fixing rib 13.

  The housing 12 of the sensor device 10 has a typical substantially rectangular parallelepiped shape, and accommodates therein a sensor 12a shown through a dotted line. The sensor 12a optically detects raindrops adhering to the windshield glass 5, and irradiates the glass with light from the interior of the automobile, and the amount of reflected light is modulated by the amount of raindrops adhering to the glass surface outside the vehicle. The rain is detected by using the phenomenon. In FIG. 1, the negative Z direction side of the windshield glass 5 is the indoor side, and the positive Z direction is the outer surface of the windshield glass 5. In this raindrop sensor device, it is important to improve the detection accuracy that no air layer is interposed in the light path returning from the light irradiation part through the outer surface of the windshield glass 5 to the light receiving part. For this reason, the raindrop sensor incorporating the light irradiating section and the light receiving section is pressed against the surface of the glass through the silicon sheet 12b, which is a soft translucent sheet, so that the raindrop sensor device is mounted on the glass surface. ing. The bracket 11 of the sensor device 10 has a housing portion (not shown) for housing the housing 12, and is bonded to the indoor glass surface of the windshield glass 5. Further, the fixing means constituted by the spring 17 and the fixing rib 13 fixes the housing 12 to the housing portion of the bracket 11.

  The fixing means of the sensor device 10 includes a spring 17 provided on a pair of opposing side surfaces of the housing 12 and a fixing rib 13 provided at a predetermined corresponding position of the bracket 11. The spring 17 of the sensor device 10 is a torsion coil spring shown in FIG. 2, and the opening angle θ1 of the arm portion 17b extending to both sides shown in FIG. 2A is opened and closed by elastic deformation of the coil portion 17c. The spring 17 is fixed to the housing 12 at a fulcrum P shown in FIG. 1A, and a locked end 17a is formed at the end of the arm portion 17b extending on both sides. The fixing rib 13 has a guide portion 13a for guiding the locked end 17a of the spring 17 when the housing 12 is accommodated in the accommodating portion of the bracket 11, and a locking portion 13b on the opposite surface of the guide portion 13a. Has been. The height A1 shown in the drawing of the locked end 17a from the tip surface of the silicon sheet 12b and the height B1 shown in the drawing of the locking portion 13b from the glass surface are in a relationship of A1> B1. It is set to be. This is because an appropriate pressing force is generated on the glass surface in a state where the housing 12 is housed in the housing portion of the bracket 11 as described in FIG.

  The sensor device 10 is configured to perform the operation shown in FIG. That is, as shown in FIGS. 3 (a) to 3 (b), as the housing 12 approaches the housing portion of the bracket 11 from the direction perpendicular to the glass surface, the locked end 17 a of the spring 17 is Guided to the guide portion 13a. Further, when pressed as indicated by a large white arrow, the opening angle θ1 of the spring 17 increases, and as shown by a small white arrow, the spring 17 contracts in a direction parallel to the glass surface. As shown in FIG. 3C, when the housing 12 is accommodated in the accommodating portion of the bracket 11, the locked end 17a of the spring 17 is released from the guide portion 13a of the fixing rib 13, and a small white arrow is displayed. As shown, the spring 17 extends in a direction parallel to the glass surface, and the locked end 17 a of the spring 17 is locked and fixed to the locking portion 13 b of the fixing rib 13. In the spring 17 in this state, the coil portion 17c is elastically deformed so that the height of the locked end 17a, which was initially A1, is the same height B1 as the locking portion 13b. For this reason, the pressing force toward the glass surface indicated by the white arrow is generated by the spring 17. The spring load of the spring 17 is set so that air between the silicon sheet 12b and the glass surface is released by this pressing force.

  The sensor device 10 in FIG. 1 is a raindrop sensor device similar to the sensor devices 90 and 80 shown in FIGS. 13 and 14, and is one of various sensor devices to be mounted on a windshield glass of an automobile. It is a sensor device to be used.

  In the conventional sensor devices 90 and 80 shown in FIG. 13 and FIG. 14, as described in the problem column, the housings 92 and 82 are made of glass with one hand when the body of the sensor devices 90 and 80 is mounted on the glass surface. While pressing against the surface, it was necessary to apply a force in a different direction with the other hand to perform the fixing operation. These two operations performed with both hands are difficult operations in a narrow indoor space such as an automobile.

  On the other hand, the sensor device 10 shown in FIGS. 1 to 3 has the following configuration as a fixing means to the bracket 11 of the housing 12 housing the sensor 12a so that the sensor device 10 can be mounted only by pressing to the glass surface. Was adopted. That is, a spring 17 having a locked end 17a formed at the end, a guide portion 13a for guiding the locked end 17a of the spring 17, and a fixing rib having a locking portion 13b formed on the opposite surface of the guide portion 13a. 13. The spring 17 and the fixing rib 13 are divided into the housing 12 and the bracket 11 and are provided at predetermined corresponding positions. When the sensor device (housing 12) is pressed against the glass surface, the spring 17 and the fixing rib 13 are interlocked as follows. That is, when the housing 12 is brought close to the bracket 11 from the direction perpendicular to the glass surface, the locked end 17a of the spring 17 is guided to the guide portion 13a of the fixing rib 13, and the spring 17 contracts in a direction parallel to the glass surface. When the housing 12 is accommodated in the bracket 11, the locked end 17 a of the spring 17 is released from the guide portion 13 a of the fixing rib 13, and the spring 17 extends in a direction parallel to the glass surface, so The locking end 17 a is locked and fixed to the locking portion 13 b of the fixing rib 13. In this way, the sensor device 10 can be mounted on the glass surface only by pressing the housing 12 that houses the sensor 12a against the glass surface (bracket 11) with one hand. Accordingly, the sensor device 10 shown in FIGS. 1 to 3 is easier to mount on the glass surface than the conventional sensor devices 90 and 80 shown in FIGS. 13 and 14, and the working time required for mounting is shortened. can do.

  As described above, the sensor device 10 shown in FIGS. 1 to 3 is a sensor device that is mounted on a glass surface and can be mounted by one-touch operation of one hand, and is a narrow room like an automobile. The sensor device can be easily mounted even in a space.

  Next, a preferred form of details of the sensor device 10 illustrated in FIGS. 1 to 3 and a modification of the sensor device 10 will be described.

  The housing 12 of the sensor device 10 shown in FIGS. 1 to 3 has a typical substantially rectangular parallelepiped shape. In this case, it is preferable that the fixing means constituted by the spring 17 and the fixing rib 13 are respectively disposed on a pair of opposing side surfaces of a rectangular parallelepiped shape as shown in FIG. Thereby, in the state which accommodated the housing 12 which accommodates the sensor 12a in the accommodating part of the bracket 11, the pressing force to the glass surface (bracket 11) of the housing 12 can be made uniform. Furthermore, in this case, as shown in FIG. 1A, the fixing means is configured so that the spring 17 and the fixing rib 13 are symmetrical with respect to the center line T perpendicular to the glass surface on the side surface of the housing 12. It is preferable to configure. This also makes it possible to make the pressing force to the glass surface (bracket 11) of the housing 12 uniform in a state where the housing 12 is housed in the housing portion of the bracket 11.

  When the spring 17 is provided in the substantially rectangular parallelepiped housing 12, the fulcrum P of the spring 17 is preferably on the center line T on the side surface of the housing 12, as shown in FIG. As a result, when the housing 12 is pressed against the glass surface as shown in FIG. 3, air can escape from the center of the silicon sheet 12b toward the end. Furthermore, it is preferable that the fulcrum P of the spring 17 is disposed on the center line T on the side surface of the housing 12 at a position farther from the glass surface than the center C. According to this, compared with the case where the fulcrum P of the spring is disposed at a position closer to the glass surface than the center C, a stronger pressing force can be generated when the housing 12 is fixed to the bracket 11. It is possible to perform secure fixing without interposing an air layer therebetween.

  The spring 17 of the sensor device 10 is a torsion coil spring in which the coil portion 17c, the arm portion 17b, and the locked end 17a are formed of a single wire such as a steel wire. Although the number of turns of the coil portion 17c shown in FIG. 2B is two, the number of turns may be larger or the number of turns may be one. Moreover, it is good also as a torsion spring which replaced with a wire and formed the circular-arc-shaped elastic part, the arm part, and the to-be-locked end using a strip | belt-shaped steel plate.

  Next, examples of sensor devices using leaf springs as fixing means are shown in FIGS.

  FIG. 4 is a diagram schematically illustrating a state before the sensor device 20 is mounted on the glass surface, and FIG. 4A is a Y direction in which a fixing means including the spring 27 and the fixing rib 23 of the sensor device 20 is disposed. (B) is a side view seen from the X direction. In addition, in each example of the sensor apparatus shown below, the same code | symbol was attached | subjected about the part similar to the sensor apparatus 10 shown in FIG.

  FIG. 5 is an enlarged perspective view of the spring 27 shown in FIG. FIG. 6 is a diagram showing a process of mounting the sensor device 20 on the glass surface, (a) is a diagram showing a state before mounting on the glass surface, and (b) is in the middle of mounting. It is the figure which showed the state, (c) is the figure which showed the state after mounting | wearing.

  The sensor device 10 shown in FIG. 1 is different from the sensor device 20 shown in FIG. 4 in the configuration of fixing means for fixing the housing 12 to the bracket 11.

  In the sensor device 10 of FIG. 1, the fixing means is constituted by the spring 17 made of a torsion spring and the fixing rib 13 corresponding thereto. On the other hand, in the sensor device 20 of FIG. 4, the fixing means is constituted by the spring 27 made of a leaf spring and the fixing rib 23 corresponding thereto.

  The spring 27 of the sensor device 20 is a cantilever thin plate spring shown in FIG. 5, and the arm portion 27b is elastically deformed. The spring 27 shown in FIG. 5 is fixed to the housing 12 at a fulcrum P shown in FIG. 4A, and the end of the arm portion 27b of the spring 27 extending from the fulcrum P to both sides is engaged. A toe 27a is formed. The fixing rib 23 has a guide portion 23a for guiding the locked end 27a of the spring 27 when the housing 12 is accommodated in the accommodating portion of the bracket 11, and an engaging portion 23b on the opposite surface of the guide portion 23a. Has been. In the sensor device 20 of FIG. 4 as well, as in the sensor device 10 of FIG. 1, the height A2 of the locked end 27a and the height B2 of the locking portion 23b shown in FIG. , A2> B2 is set. This is to generate an appropriate pressing force against the glass surface in a state where the housing 12 is housed in the housing portion of the bracket 11.

  Then, as shown in FIGS. 6A to 6B, the sensor device 20 has the locked end 27 a of the spring 27 as the housing 12 approaches the housing portion of the bracket 11 from the direction perpendicular to the glass surface. Then, it is guided to the guide portion 23 a of the fixing rib 23. Further, when pressed as indicated by a large white arrow, the arm portion 27b of the spring 27 is elastically deformed, and as shown by a small white arrow, the spring 27 contracts in a direction parallel to the glass surface. Then, as shown in FIG. 6C, when the housing 12 is accommodated in the accommodating portion of the bracket 11, the locked end 27a of the spring 27 is released from the guide portion 23a of the fixing rib 23, and a small white arrow As shown, the spring 27 extends in a direction parallel to the glass surface, and the locked end 27 a of the spring 27 is locked and fixed to the locking portion 23 b of the fixing rib 23. In the spring 27 in this state, the arm portion 27b is elastically deformed so that the height of the locked end 27a, which was initially A2, is the same height B2 as that of the locking portion 23b. For this reason, the pressing force toward the glass surface indicated by the white arrow is generated by the spring 27. The spring load of the spring 27 is set so that air between the silicon sheet 12b and the glass surface is released by this pressing force.

  7 to 9 are examples of another sensor device using a compression spring as a fixing means.

  FIG. 7 is a diagram schematically showing a state before the sensor device 30 is mounted on the glass surface, and is a front view seen from the Y direction in which the fixing means including the spring 37 and the fixing rib 33 of the sensor device 30 is arranged. It is.

  FIG. 8 is an enlarged perspective view of the spring 37 shown in FIG. FIG. 9 is a diagram showing a process of mounting the sensor device 30 on the glass surface, (a) is a diagram showing a state before mounting on the glass surface, and (b) is a diagram in the middle of mounting. It is the figure which showed the state, (c) is the figure which showed the state after mounting | wearing.

  In the sensor device 30 of FIG. 7, in order to facilitate contraction in the direction parallel to the glass surface, a fixing means is constituted by a spring 37 made of a compression spring and a fixing rib 33 corresponding thereto.

  The spring 37 of the sensor device 30 is a compression coil spring shown in FIG. 8, and the arm portion 37b is elastically deformed. The springs 37 shown in FIG. 8 are fixed to the housing 12 at fulcrums P shown in FIG. 7, respectively. The ends of the arm portions 37b of the springs 37 extending from the fulcrum P to both sides are respectively connected to the locked ends 37a. Is formed. The fixing rib 33 has a guide portion 33a for guiding the locked end 37a of the spring 37 when the housing 12 is housed in the housing portion of the bracket 11, and a locking portion 33b on the opposite surface of the guide portion 33a. Has been. The spring 37 shown in FIG. 8 is a compression coil spring in which one wire such as a steel wire is formed in a coil shape, but a compression spring formed by bending a strip-shaped steel plate in a zigzag manner may be used.

  As shown in FIGS. 9A to 9B, the sensor device 30 of FIG. 7 has a locked end 37a of a spring 37 as the housing 12 approaches the housing portion of the bracket 11 from a direction perpendicular to the glass surface. Is guided to the guide portion 33 a of the fixing rib 33. Further, when pressed as indicated by a large white arrow, the arm portion 37b of the spring 37 is compressed and deformed, and as shown by a small white arrow, the spring 37 contracts in a direction parallel to the glass surface. 9C, when the housing 12 is accommodated in the accommodating portion of the bracket 11, the locked end 37a of the spring 37 is released from the guide portion 33a of the fixing rib 33, and a small white arrow As shown, the spring 37 extends in a direction parallel to the glass surface, and the locked end 37 a of the spring 37 is locked and fixed to the locking portion 33 b of the fixing rib 33. In the spring 37 in this state, the arm portion 37b is elastically deformed, and the pressing force toward the glass surface indicated by the white arrow is applied as in the case of the sensor devices 10 and 20 shown in FIGS. It is generated by the spring 37.

  In the examples of the sensor devices 10, 20, and 30 described above, the springs 17, 27, and 37 are provided in the housing 12, and the fixing ribs 13, 23, and 33 are provided in the bracket 11. On the contrary, the spring may be provided on the bracket and the fixing rib may be provided on the housing.

  FIGS. 10-12 is an example of the sensor apparatus with which the spring was equipped in the bracket.

  FIG. 10 is a diagram schematically showing a state before the sensor device 40 is mounted on the glass surface, and is a front view as viewed from the Y direction in which the fixing means including the spring 47 and the fixing rib 43 of the sensor device 40 is arranged. It is.

  FIG. 11 is an enlarged perspective view of the spring 47 shown in FIG. FIG. 12 is a diagram showing a process of mounting the sensor device 40 on the glass surface, (a) is a diagram showing a state before mounting on the glass surface, and (b) is a diagram in the middle of mounting. It is the figure which showed the state, (c) is the figure which showed the state after mounting | wearing.

  In the sensor device 40 of FIG. 10, a fixing means is configured by the spring 47 provided in the bracket 11 and the fixing rib 43 provided in the housing 12 corresponding thereto.

  The spring 47 provided in the bracket 11 of the sensor device 40 is a torsion leaf spring shown in FIG. 11, and the opening angle θ2 of the arm portion 47b is opened and closed by elastic deformation of the arc portion 47c. Each of the springs 47 shown in FIG. 11 is fixed to the bracket 11 at a fulcrum P shown in FIG. 10, and an end 47a of the arm 47b of the spring 47 extending from the fulcrum P to both sides is provided at the locked end 47a. Is formed. Further, the fixing rib 43 provided in the housing 12 has a guide portion 43a for guiding the locked end 47a of the spring 47 when the housing 12 is accommodated in the accommodating portion of the bracket 11, and an opposite surface of the guide portion 43a. A locking portion 43b is formed.

  As shown in FIGS. 12A to 12B, the sensor device 40 of FIG. 10 has a locked end 47a of a spring 47 as the housing 12 approaches the housing portion of the bracket 11 from a direction perpendicular to the glass surface. Is guided to the guide portion 43 a of the fixing rib 43. When pressed as indicated by a large white arrow, the opening angle θ2 of the spring 47 is reduced, and as indicated by a small white arrow, the spring 47 contracts in a direction parallel to the glass surface. Then, as shown in FIG. 12C, when the housing 12 is accommodated in the accommodating portion of the bracket 11, the locked end 47 a of the spring 47 is released from the guide portion 43 a of the fixing rib 43, and a small white arrow As shown, the spring 47 extends in a direction parallel to the glass surface, and the locked end 47 a of the spring 47 is locked and fixed to the locking portion 43 b of the fixing rib 43. Further, in the spring 47 in this state, the arc portion 47 c is elastically deformed, and a pressing force toward the glass surface indicated by a white arrow is generated by the spring 47.

  As described above, any of the illustrated sensor devices 10, 20, 30, and 40 can be mounted by one-handed one-touch operation, and can be easily and reliably mounted on the glass surface.

  Therefore, the above-mentioned sensor device is suitable for a sensor device to be mounted in a narrow indoor space such as an automobile, because the glass surface to be mounted is an indoor surface of a windshield glass of an automobile. For example, as the illustrated sensor device 10, 20, 30, 40, as a raindrop sensor device in which the housing 12 is pressed and fixed to the glass surface of the windshield glass 5 via the silicon sheet 12b and an appropriate pressing force is required. Is preferred.

  However, the present invention is not limited to this, and the sensor device can also be applied to a humidity sensor device incorporating a temperature sensor, a laser radar device, a front monitoring camera device, and the like. The humidity sensor device having a built-in humidity conversion temperature sensor, instead of the light-transmitting sheet (silicon sheet 12b) of the raindrop sensor device, presses and adheres the temperature sensor to the surface of the glass via a heat conductive sheet. The sensor device is mounted on the glass surface. In addition, the laser radar device and the front monitoring camera device have a clearance between the laser radar or camera as a sensor and the glass surface, and the laser radar device and the front monitoring camera device are mounted on the glass surface (bracket). Yes. These humidity sensor devices, laser radar devices, forward monitoring camera devices, etc. can be mounted by one-touch operation with one hand by adopting the fixing means having the structure of the spring and fixing rib described above, and easily and reliably. Needless to say, it can be mounted on a glass surface.

10, 20, 30, 40, 80, 90 Sensor device 5 Windshield glass 11 Bracket 12 Housing 12a Sensor 12b Silicon sheet 17, 27, 37, 47 Spring 17a, 27a, 37a, 47a Locked end 13, 23, 33 43 fixing ribs
13a, 23a, 33a, 43a Guide part 13b, 23b, 33b, 43b Locking part

Claims (9)

It is a glass surface mounting sensor device used by mounting on a glass surface,
A housing that houses the sensor; a bracket that is bonded to the glass surface and has a housing portion that houses the housing; and a fixing unit that fixes the housing to the housing portion. ,
The fixing means is
A spring provided on one of the housing and the bracket and having a locked end formed at an end;
The other part of the housing and the bracket, comprising a guide part that guides the locked end when the housing is accommodated in the accommodating part, and a fixing rib having an engaging part formed on the opposite surface thereof,
As the housing is brought closer to the housing portion from a direction perpendicular to the glass surface, the locked end of the spring is guided to the guide portion of the fixing rib, and the spring contracts in a direction parallel to the glass surface,
When the housing is accommodated in the accommodating portion, the locked end of the spring is released from the guide portion of the fixing rib, the spring extends in a direction parallel to the glass surface, and the locked end of the spring is A glass surface mounting sensor device configured to be locked and fixed to a locking portion of a fixing rib. The housing has a substantially rectangular parallelepiped shape;
2. The glass according to claim 1, wherein the fixing means is configured to be respectively disposed on a pair of opposing side surfaces of the rectangular parallelepiped shape in a state where the housing is accommodated in the accommodating portion. Surface-mounted sensor device.   The said fixing means is comprised so that it may become left-right symmetric with respect to the centerline perpendicular | vertical to the glass surface of the said side surface in the state which accommodated the said housing in the said accommodating part. The glass surface mounting sensor apparatus of description. The spring is provided in the housing;
The glass surface mounting sensor device according to claim 3, wherein the fixing rib is provided on the bracket.   The glass surface mounting sensor device according to claim 4, wherein the fulcrum of the spring is disposed at a position away from the glass surface from the center on the center line of the side surface.   The glass surface mounting sensor device according to claim 5, wherein the spring is a torsion spring or a leaf spring. The glass surface mounting sensor device is a raindrop sensor device,
The glass surface mounting sensor device according to any one of claims 1 to 6, wherein the housing is pressed and fixed to the glass surface via a silicon sheet.   The glass surface mounting sensor according to any one of claims 1 to 6, wherein the glass surface mounting sensor device is a humidity sensor device, a laser radar device, or a front monitoring camera device incorporating a temperature sensor. apparatus.   The glass surface mounting sensor device according to any one of claims 1 to 8, wherein the glass surface is an indoor surface of a windshield glass of an automobile.

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