JP5400673B2 - Aiming tool of vehicle object detection device and method of installing reference sign for aiming - Google Patents

Description

  The present invention relates to a tool used for aiming (optical axis adjustment) of an object detection device such as a radar device mounted on a vehicle, and a method of installing a reference sign for aiming in front of the vehicle.

  In an object detection device such as a radar device that emits an electromagnetic wave beam such as a millimeter wave beam or a laser beam to the front of a vehicle, the electromagnetic wave to the vehicle can be accurately measured so that the position and orientation of the object relative to the vehicle can be accurately measured. It is necessary to adjust the direction of the optical axis of the beam appropriately.

  As a technique for adjusting the optical axis, that is, aiming, a technique found in, for example, Patent Document 1 is conventionally known.

  In this technology, a fixing mechanism in which one end of a string is fixed to specify a center line passing through the center of the width in the left-right direction of the vehicle (a center line extending in the front-rear direction when the vehicle is viewed from above). The part is fixed to the upper center of the open trunk cover at the rear of the vehicle using a suction cup, a magnet, or a double-sided tape. Further, the string is extended from the fixing mechanism portion toward the road surface (horizontal reference surface) in front of the vehicle so as to pass right above the emblem at the center of the hood at the front of the vehicle. The axis extending in the straight traveling direction of the vehicle (center line passing through the center of the width of the vehicle) is set by the string thus extended. Then, the intersection where the string contacts the road surface is marked, and a corner reflector (pseudo detection target object) that serves as a marker for aiming the radar apparatus at a position offset from the intersection by a predetermined offset value in the lateral direction. Is installed.

  A beam is radiated from the radar device to the corner reflector thus installed. At this time, the aiming (optical axis adjustment) of the radar apparatus is performed based on the received intensity of the beam reflected by the corner reflector.

JP 2001-235536 A

  In the technique shown in Patent Document 1, a fixing mechanism portion to which one end portion of a string for specifying a center line of a vehicle width is fixed is fixed to a trunk cover using a suction cup, a magnet, or a double-sided tape. . For this reason, the fixing position of the fixing mechanism portion is likely to vary with respect to the center position of the trunk cover depending on how the operator works. Further, when the string is extended forward of the vehicle, the string is simply passed directly above the emblem at the center of the bonnet, so that the passing position of the string above the bonnet tends to vary.

  Therefore, in the technique shown in Patent Document 1, the position of the string on the rear side of the vehicle and the position on the front side tend to vary with respect to the center position of the width of the vehicle. As a result, the position of the string in the width direction of the vehicle or the extending direction of the string tends to cause an error with respect to the center line of the width of the vehicle.

  As a result, the installation position of the corner reflector is likely to cause an error with respect to the original installation position, which may result in inaccurate optical axis adjustment (aiming).

  In addition, in order to fix the fixing mechanism portion to the center position of the trunk cover as accurately as possible, it is necessary to perform operations such as measuring the fixing position of the fixing mechanism portion, which increases the number of work steps. There is an inconvenience.

  The present invention has been made in view of such a background. When aiming an object detection device such as a radar device mounted on a vehicle, the width in the left-right direction of the vehicle is placed on the floor on which the vehicle is placed. It is an object of the present invention to provide an aiming tool capable of efficiently and accurately determining the center position.

  Further, the present invention provides a method for efficiently performing the aiming reference sign placed in front of the vehicle at a required position with high accuracy when aiming at the object detection device. The purpose is to provide.

  The aiming tool of the present invention is provided on a center line passing through the center of the width in the left-right direction of the vehicle on the horizontal floor surface on which the vehicle is placed in order to aim the object detection device that monitors the front of the vehicle. A mounting hole into which an exterior component mounting member for mounting a predetermined exterior component to the vehicle body frame of the vehicle is detachably inserted. The tool mounting structure is configured such that it can be inserted into the mounting hole provided in the vehicle body frame and the exterior component at the center position of the width in the left-right direction of the vehicle in a state where the exterior component mounting member is removed. And a weight connected to the tool mounting member via a string member inserted through the shaft center of the tool mounting member so that an interval between the member and the tool mounting member can be adjusted. When determining the tool mounting portion in the mounting hole. With fitted insert state, the weight is being hung in the direction of gravity through the string member from the fitting insertion member, characterized in that it is placed in contact with the floor surface.

  The “floor surface” in the present invention does not mean only a normal indoor floor surface but also includes the ground surface or road surface. This also applies to the method for installing the aiming reference mark of the present invention described later.

  In the aiming tool of the present invention, the exterior component attachment member for attaching a predetermined exterior component to the vehicle body frame of the vehicle is an attachment hole that is detachably inserted, and is a center of the width in the left-right direction of the vehicle A mounting hole provided in the vehicle body frame and the exterior part at a position is used for mounting the aiming tool on the vehicle.

  That is, the aiming tool of the present invention includes, as a component thereof, a tool mounting member configured to be inserted into the mounting hole. Then, after the exterior component mounting member is removed from the mounting hole, the tool for mounting is mounted on the vehicle by inserting the tool mounting member into the mounting hole.

  At this time, since the mounting hole is a hole arranged at the center position of the width in the left-right direction of the vehicle, the mounting position of the tool mounting member (the mounting position in the width direction of the vehicle) It matches the center position of the width in the direction (hereinafter sometimes simply referred to as the vehicle width) with high accuracy.

  Then, with the tool mounting member inserted in the mounting hole in this manner, the weight is suspended from the tool mounting member via the string member in the gravitational direction so as to contact the floor surface. Placed in. At this time, the contact position between the weight and the floor surface is located immediately below the mounting hole in the direction of gravity (vertical direction), and therefore matches the center position of the vehicle width with high accuracy.

  Thereby, by using the aiming tool of the present invention, the vehicle width center position, that is, the position where the center line of the vehicle width when the vehicle is viewed from above can be determined with high accuracy. As a result, the center line can be accurately identified.

  In this case, the tool mounting member vehicle can be removed by simply removing the exterior component mounting member from the mounting hole and inserting the tool mounting member into the mounting hole instead of the exterior component mounting member. Since the attachment position to the vehicle can be accurately matched with the center position of the vehicle width, the operation for determining the vehicle width center position can be performed efficiently in a short time.

  In addition, as said exterior components, a bumper, an undercover, etc. are mentioned, for example.

  In the aiming tool of the present invention, it is preferable that the tool attachment member is formed in the same outer shape as the exterior part attachment member.

  Thereby, attachment of the tool attachment member of the aiming tool to the attachment hole can be reliably performed as in the case of attachment of the exterior part attachment member.

  Next, according to the method for installing the reference sign for aiming of the present invention, in order to perform the aiming of the object detection device for monitoring the front of the vehicle, the vehicle is placed in front of the vehicle on the horizontal floor surface on which the vehicle is placed. A method of installing a reference sign for aiming, wherein an exterior part attachment member for attaching a predetermined exterior part to a vehicle body frame of the vehicle is detachably fitted, and is attached to the vehicle. A first step of removing the exterior component attachment member from an attachment hole provided in the vehicle body frame and the exterior component at a central position in a lateral width; and the exterior component attachment member is removed. The tool mounting member is configured to be fitted into the mounting hole, and the tool mounting member can be adjusted to adjust the distance between the tool mounting member via a string member inserted through the axis of the tool mounting member. Aiming tool comprising a weight connected to a member And inserting the tool mounting member of the aiming tool into the mounting hole from which the exterior component mounting member has been removed in the first step, and from the tool mounting member through the string member A second step of disposing the weight so as to contact the floor surface while being suspended in the direction of gravity, and marking the contact point of the floor surface with the weight; and at least through the mark, the vehicle And a third step of installing the reference marker at a position on the floor surface having a predetermined positional relationship with respect to a straight line extending in the front-rear direction.

  The reference sign object means a sign object having a predetermined standard for performing trial detection by the object detection device in order to aim the object detection device.

  According to the present invention, in the first step, after removing the exterior component attachment member from the attachment hole existing at the center position of the vehicle width of the vehicle, in the second step, A tool mounting member of the aiming tool is inserted. As a result, the tool attachment member is attached to the vehicle so as to be present at the center position of the vehicle width.

  Furthermore, in the second step, the weight is disposed so as to come into contact with the floor surface while being suspended from the tool attachment member via the string member in the direction of gravity.

  At this time, as described above, the contact position between the weight of the aiming tool and the floor surface is located immediately below the mounting hole in the direction of gravity (vertical direction). It will match. Therefore, the mark can be attached to the floor so as to accurately match the vehicle width center position.

  In the third step, the reference sign is placed at a position on the floor surface having a predetermined positional relationship with respect to a straight line extending in the front-rear direction of the vehicle through at least the mark. At this time, since the straight line passes through at least the mark and extends in the front-rear direction of the vehicle, the actual vehicle width may be used unless the direction of the straight line is greatly deviated from the front-rear direction of the vehicle. The coincidence with the center line of is high.

  In the present invention, since this straight line is used as a reference for the installation position of the reference sign object, the reference sign object is accurately set to a required position (relative to the vehicle) for aiming of the object detection device. It can be installed at a position that matches well. As a result, the aiming of the object detection device can be performed appropriately.

  In the method for installing a reference sign according to the present invention, the vehicle is a vehicle provided with the mounting holes at the center position of the width in the left-right direction of the vehicle at two locations, the front portion and the rear portion of the vehicle, The first step is a step of removing the exterior component attachment member from the two attachment holes, and the second step is to attach the two marks corresponding to the two attachment holes to the aiming tool. The third step is to install the reference marker at a position on the floor surface having the predetermined positional relationship with respect to a straight line passing through the two marks. It is preferable that it is a process.

  According to this, in the said 2nd process, a mark will be attached | subjected on a floor surface directly under each of the said two attachment holes (directly under a gravitational direction) using the said aiming tool. At this time, since the positions of the respective marks accurately match the center position of the vehicle width, the straight line passing through these two marks matches the center line of the vehicle width with high accuracy. Therefore, by installing the reference marker at a position on the floor surface having the predetermined positional relationship with respect to a straight line, the installation position can be matched with a required position that is supposed to be highly accurate. .

  In this case, in the second step, a single aiming tool may be attached to the two attachment holes in order, and the two marks may be attached in order. Using aiming tools, the respective aiming tools may be separately attached to the two attachment holes.

  Moreover, the exterior parts attached to the vehicle body frame via the exterior part attachment members that are respectively inserted into the two attachment holes are not necessarily the same exterior parts, and may be different exterior parts.

  Moreover, as the said exterior components in the installation method of the reference | standard mark thing of this invention, a bumper, an undercover etc. are mentioned similarly to the case of the tool for aiming.

The top view which looked at the vehicle and the reference | standard marker jig | tool in one Embodiment of this invention from upper direction. The perspective view which shows the attachment structure of the exterior components (bumper) of the vehicle shown in FIG. FIGS. 3A and 3B are perspective views showing a state before and after mounting the aiming tool of the radar device mounted on the vehicle shown in FIG. 1, respectively. The flowchart which shows the operation | movement procedure in the case of aiming of the radar apparatus in this embodiment.

  An embodiment of the present invention will be described below.

  A vehicle 1 shown in FIG. 1 is a vehicle equipped with a radar device 2 as an object detection device that performs aiming (optical axis adjustment). The electromagnetic wave beam transmitting / receiving unit of the radar device 2 is mounted at the center position of the width (vehicle width) in the left-right direction of the vehicle 1 at the front end of the vehicle 1. As the radar device 2, for example, a known laser radar device as described in JP-A-2001-235536, a known millimeter wave radar device, or the like can be employed.

  When aiming (optical axis adjustment) of the radar apparatus 2, the vehicle 1 is placed on a horizontal floor surface. Then, in front of the vehicle 1, a jig 3 (hereinafter referred to as a reference sign jig 3) on which a reference sign is assembled is installed.

  The reference marking jig 3 is attached to a base 4 that can be moved on a floor surface by a caster or the like (not shown), a support 5 that is erected on the support 4, and a vertical position that can be adjusted to the support 5. And a reference reflector 6 as a reference marker. The reference reflector 6 is a detection object (an electromagnetic wave reflector) that is detected on a trial basis by the radar device 2 when aiming the radar device 2, and has a predetermined size, shape, and property. It is set according to the standard.

  In the present embodiment, since the radar device 2 is mounted on the front end portion of the vehicle 1 at the center position of the vehicle width, the radar device 2 has the vehicle 1 when the vehicle 1 and the reference marker jig 3 are viewed from above. So that the reference reflector 6 exists on the center line C of the vehicle width (a straight line extending in the front-rear direction of the vehicle 1 through the center position of the vehicle width; hereinafter referred to as the vehicle width center line C). It is necessary to install the jig 3 on the floor surface. In order to install the reference marking jig 3 as described above, it is necessary to determine (specify) the vehicle width center line C on the floor surface.

  In order to determine the vehicle width center line C, the aiming tool 20 shown in FIG. 3 is used in this embodiment.

  The aiming tool 20 is configured to be attached to the vehicle 1 using an attachment structure for attaching a predetermined exterior part of the vehicle 1 to the vehicle body frame. Therefore, before explaining the configuration of the aiming tool 20, the attachment structure for the exterior part will be described below.

  In this embodiment, the said exterior components are each bumper of the front part of the vehicle 1, and a rear part, for example. Although detailed illustration is omitted, in the present embodiment, a plurality of front and rear bumpers used for attaching a front bumper and a rear bumper to the front body frame and the rear body frame of the vehicle 1, respectively. A hole (hereinafter referred to as a vehicle body side mounting hole) is drilled in advance. The front bumper and the rear bumper each have a plurality of holes (hereinafter referred to as exterior component side mounting holes) that communicate with the vehicle body side mounting holes when facing the vehicle body frame. Has been.

  In the vehicle 1 of the present embodiment, as shown in FIG. 2, the grommet 12, the clip member 13, and the exterior component side mounting hole 10 a of the bumper 10 and the vehicle body side mounting hole 11 a of the body frame 11 facing the same. Each bumper 10 is attached to the vehicle body frame 11 by an attachment structure for attaching the. Note that the bumper 10 and the vehicle body frame 11 schematically shown by a two-dot chain line in FIG. 2 representatively show a vehicle body frame and a bumper portion on either one of the front part and the rear part of the vehicle 1.

  More specifically, in the above mounting structure, the grommet 12 having the through hole 12a formed in the shaft center portion is fitted into the exterior component side mounting hole 10a and the vehicle body side mounting hole 11a facing each other. Further, the pin-shaped body portion 13a of the clip member 13 having a slightly larger diameter than the through-hole 12a is inserted (pressed) into the through-hole 12a of the grommet 12. Thereby, the bumper 10 and the vehicle body frame 11 are fastened at the locations of the exterior component side mounting hole 10a and the vehicle body side mounting hole 11a that face each other. In other words, by inserting the body portion 13 a of the clip member 13 into the exterior component side mounting hole 10 a and the vehicle body side mounting hole 11 a via the grommet 12, the bumper 11 is inserted into the vehicle body via the grommet 12 and the clip member 13. Attached to the frame 10.

  The clip member 13 includes a disc-shaped large-diameter portion 13b at one end portion of the body portion 13a, and the large-diameter portion 13b penetrates in a state where the body portion 13a is inserted into the through hole 12a of the grommet 12. It is locked to the opening end of the hole 12a. Moreover, in this embodiment, the said clip member 13 is equivalent to the member for exterior components attachment in this invention.

  The above is the mounting structure between each bumper 10 and the vehicle body frame 11.

  Here, in the present embodiment, one mounting hole among the plurality of vehicle body side mounting holes 11a of the vehicle body frame 11 to which the bumper 10 at the front portion of the vehicle 1 is mounted (as a result, the one vehicle body side mounting hole 11a, The exterior component side mounting hole 10a facing this is provided at the center of the vehicle width of the vehicle 1. Similarly, one mounting hole among the plurality of vehicle body side mounting holes 11a of the vehicle body frame 11 to which the bumper 10 at the rear portion of the vehicle 1 is mounted (as a result, the one vehicle body side mounting hole 11a and an exterior component that faces the mounting hole 11a). The side mounting hole 10a is provided at the center of the vehicle width of the vehicle 1. Hereinafter, in each of the front portion and the rear portion of the vehicle 1, the one vehicle body side mounting hole 10a provided at the center position of the vehicle width of the vehicle 1 and the exterior component side mounting hole 11a opposed thereto are generically referred to. These are referred to as vehicle width central mounting holes 10a and 11a.

  In the present embodiment, the vehicle width center mounting holes 10a and 11b correspond to the mounting holes in the present invention and are used for mounting the aiming tool 20.

  Next, the aiming tool 20 will be specifically described. In the following description, unless otherwise specified, the grommet 12 and the clip member 13 mean the grommet 12 and the clip member 13 mounted in the vehicle width central mounting holes 10a and 11a.

  As shown in FIG. 3A, the aiming tool 20 according to this embodiment includes a tool-side clip member 21 formed in the same outer shape (external shape) as the clip member 13, and the tool-side clip member 21. It comprises a weight 23 connected via a flexible string member 22.

  The weight 23 is formed in a pin shape having a sharp tip, and the end opposite to the tip is fixed to one end of the string member 22.

  The tool side clip member 21 corresponds to a tool mounting member in the present invention. Since the tool side clip member 21 is formed in the same outer shape as the clip member 13, similarly to the clip member 13, the tool side clip member 21 has a pin-shaped body portion 21 a and a large diameter portion 21 b, and the body portion 21 a can be inserted into the grommet 12.

  However, in the tool side clip member 21, the string member 22 is inserted through the axial center. In this case, the tool-side clip member 21 incorporates a lock mechanism (not shown) that locks the tool-side clip member 21 to the string member 22, and when the lock mechanism is released, It is slidable. Thereby, this tool side clip member 21 and the weight 23 are connected via the string member 12 so that the space | interval between them can be adjusted.

  The mechanism for adjusting the distance between the tool-side clip member 21 and the weight 23 may be provided on the weight 23, or may be provided between the tool-side clip member 21 and the weight 23. May be.

  The above is the structure of the aiming tool 20 in the present embodiment. In the aiming tool 20 configured in this way, as shown in FIG. 3A, the clip member 13 is removed from the grommet 12 mounted in the vehicle width central mounting holes 10a and 11b, and the clip By inserting the tool side clip member 21 in place of the member 12 into the through hole 12a of the grommet 12, the aiming tool 20 is inserted through the tool side clip member 21 and the grommet 12 as shown in FIG. Thus, it can be mounted in the vehicle width central mounting holes 10a and 11b.

  3 (a) and 3 (b), the vehicle width central mounting holes 10a and 11b are described as holes whose axial centers are in the vertical direction, but the vehicle width central mounting holes 10a and 11b The direction of the axis may be a direction that intersects the vertical direction, such as the front-rear direction or the left-right direction of the vehicle 1.

  Next, an operation procedure when aiming at the radar apparatus 2 will be described below.

  The aiming work is performed according to the procedure shown in the flowchart of FIG.

  First, in STEP 1, the clip members 13 mounted in the vehicle width center mounting holes 10 a and 11 a at the front and rear portions of the vehicle 1 placed on a horizontal floor are removed from the grommet 12. . Note that the vehicle 1 may be placed on a horizontal floor after the clip member 13 is removed.

  Next, in STEP 2, the center position of the vehicle width on the front side of the vehicle 1 and the center position of the vehicle width on the rear side of the vehicle 1 are determined on the floor surface on which the vehicle 1 is placed using the aiming tool 20. Then, mark each center position.

  In this case, each center position is determined as follows. That is, when determining the center position of the vehicle width on the front side of the vehicle 1, the tool side clip member of the aiming tool 20 on the grommet 12 mounted in the vehicle width center mounting holes 10 a and 11 a on the front portion of the vehicle 1. 21 is inserted, and the tool side clip member 21 is locked to the vehicle width center mounting holes 10a and 11a via the grommet 12. Thereby, the aiming tool 10 is attached to the vehicle width central attachment holes 10a and 11a.

  Then, by appropriately adjusting the distance between the tool side clip member 21 and the weight 23, the weight 23 is suspended from the tool side clip member 21 (while the string member 22 is not loosened), and the weight 23. Touch the tip of the to the floor. Further, a mark Mf is attached to the contact point between the weight 23 and the floor as shown in FIG.

  At this time, in the state where the tip of the weight 23 is in contact with the floor surface as described above, the string member 22 extends in the direction of gravity due to the gravity acting on the weight 23, so the tip of the weight 23 is Then, the vehicle comes into contact with the floor surface at a position directly below the vehicle width central mounting holes 10a and 11b (directly below in the direction of gravity).

  In this case, the vehicle width center mounting holes 10a and 11b are mounting holes provided at the center position of the vehicle width as described above.

  For this reason, the position of the contact point between the weight 23 and the floor surface, that is, the position with the mark Mf coincides with the center position of the vehicle width on the floor surface (position on the vehicle width center line C) with high accuracy. It will be.

  Also on the rear side of the vehicle 1, in the same manner as described above, the center position of the vehicle width is specified using the aiming tool 10, and a mark Mr is attached to the center position as shown in FIG.

  In FIG. 1, the marks Mf and Mr are indicated by “x” marks, but marks having other shapes may be used as long as they can indicate the contact point between the weight 13 and the floor surface.

  Supplementally, an operation for determining the center position of the vehicle width on the front side of the vehicle 1 (operation for attaching the mark Mf) and an operation for determining the center position of the vehicle width on the rear side of the vehicle 1 (operation for attaching the mark Mr). May be performed in order using a single aiming tool 10, but when two aiming tools 10 can be prepared, the front side and the rear side of the vehicle 1 You may make it perform the operation | work which determines the center position of a vehicle width using the tool 10 for aiming.

  Next, a straight line passing through the front and rear marks Mf, Mr of the vehicle 1 in STEP 3 is defined as a vehicle width center line C. On the vehicle width center line C, a position at a predetermined distance L0 from the front end of the vehicle 1 The reference marker jig 3 is installed. More specifically, when the vehicle 1 and the reference marker jig 3 are viewed from above, the base 4 of the reference marker jig 3 is on the floor so that the reference reflector 6 of the reference marker shaft 3 is on the vehicle width center line C. Installed on the surface.

  In this case, more specifically, for example, a string (not shown) is linearly extended so as to pass the marks Mf and Mr on the floor surface, and is attached to the floor surface with a tape or the like. Then, the reference marking jig 3 is installed as described above by adjusting the position of the base 4 of the reference marking jig 3 with respect to the string with the string as the center line of the vehicle width.

  After the reference marker jig 3 is installed at a predetermined position as described above, the aiming operation of the radar apparatus 2 is performed next in STEP 4. In STEP 4, the radar apparatus 2 of the vehicle 1 trially measures the position and orientation of the reference reflector 6 of the reference marker jig 3 (position and orientation relative to the vehicle 1), and the measured position and orientation are measured. However, aiming (optical axis adjustment) of the radar apparatus 2 is performed so as to match the actual position and orientation. In addition, as a more specific process of the aiming work, for example, a publicly-known process may be performed as described in the above-mentioned Japanese Patent Application Laid-Open No. 2001-235536.

  The above is the work procedure when aiming the radar apparatus 2 in the present embodiment.

  In the present embodiment described above, the vehicle width center mounting provided at the center position of the vehicle width among the mounting holes 10a, 11a used for mounting the bumper 10 as the exterior part to the vehicle body frame 11 of the vehicle 1 is performed. Using the holes 10a and 11a, after the clip member 13 is removed from the grommet 12 mounted in the vehicle width center mounting holes 10a and 11a, the tool side clip member 21 of the aiming tool 20 is inserted. Thus, the center position of the vehicle width can be specified with high accuracy easily without requiring labor-intensive work on the front side and the rear side of the vehicle 1.

  And since the center position of the vehicle width in the front side and the rear side of the vehicle 1 can be specified with high precision, the straight line passing through these center positions can be matched with the actual vehicle width center line C with high precision. As a result, the reference marker jig 3 having the reference reflector 6 as the reference marker is moved to a predetermined position for aiming (in this embodiment, a predetermined distance L0 from the front end of the vehicle 1 on the vehicle width center line C). Can be installed at a position having As a result, the aiming of the radar apparatus 2 can be performed accurately and appropriately.

  Moreover, in this embodiment, since the attachment structure of the highly versatile exterior part which uses the said grommet 12 and the clip member 13 is utilized, the tool 10 for aiming can be used with multiple types of vehicles 1. FIG. Therefore, the versatility of the aiming tool 10 can be improved.

  In the embodiment described above, the vehicle width center mounting holes 10a and 11b for mounting the aiming tool 20 are described as an example for mounting the bumper 10 as an exterior part to the vehicle body frame 11. As long as the mounting hole is provided at the center of the vehicle width, the aiming tool 20 may be mounted in a mounting hole for mounting other exterior parts such as an under cover of the vehicle 1 to the vehicle body frame. .

  In the present embodiment, the case where the center position of the vehicle width is determined using the aiming tool 20 on the front side and the rear side of the vehicle 1 has been described as an example. The center position of the vehicle width is determined using the aiming tool 20 only on one of the sides, and the center position of the vehicle width is determined on the other side by a simpler method. Good. For example, when an index such as an emblem is provided at the center of the vehicle width at the rear portion of the vehicle 1, the vehicle width can be determined using the aiming tool 20 on the front side of the vehicle 1 as in the above embodiment. On the other hand, on the rear side of the vehicle 1, the weight is suspended from the index such as the emblem via the string member, and the point at which the tip of the weight comes into contact with the floor surface is determined. You may make it determine as a center position of the vehicle width in a rear side.

  Even in this case, since the center position of the vehicle width on the front side of the vehicle 1 can be accurately identified, a straight line passing through the center position of the vehicle width specified before and after the vehicle 1 is the center of the actual vehicle width. It is possible to suppress variations in the lines.

  In the present embodiment, since the radar device 2 is mounted at the center of the vehicle width at the front of the vehicle 1, the reference marker jig 3 is installed on the center line C of the vehicle width. However, when the radar apparatus 2 is mounted at a position shifted laterally (left and right) by a predetermined distance from the center line C of the vehicle width, the reference marker shaft jig 3 is set to the specified vehicle width. What is necessary is just to install in the position shifted only the said predetermined space | interval from the center line (straight line which passes mark Mf, Mr).

  In the present embodiment, the tool-side clip member 21 of the aiming tool 20 is formed in the same outer shape as that of the clip member 13, but the shape is attached to the exterior component side at the center position of the vehicle width. What is necessary is just to set suitably according to the shape of the components inserted by the hole and the vehicle body side attachment hole. For example, you may comprise the tool side clip member 21 in the same outer shape as the grommet 12 inserted by the said vehicle width center attachment hole 10a, 11a. In this case, after removing the grommet 12 from the vehicle width center mounting holes 10a, 11a, the tool side clip member 21 is inserted into the vehicle width center mounting holes 10a, 11a so that the aiming tool is mounted to the vehicle 1. You can do it.

  DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Radar device (object detection device), 6 ... Reference reflector (reference mark object), 10 ... Bumper (exterior part), 11 ... Body frame, 10a, 11a ... Mounting hole, 13 ... Clip member ( Exterior part mounting member), 20 ... Aiming tool, 21 ... Tool side clip member (tool mounting member), 22 ... String member, 23 ... Weight, Mf, Mr ... mark.

Claims (4)

In order to aim the object detection device that monitors the front of the vehicle, the vehicle width center that is located on the center line passing through the center of the width in the left-right direction of the vehicle on the horizontal floor surface on which the vehicle is placed A tool for determining the position,
A mounting hole for removably fitting an exterior component mounting member for mounting a predetermined exterior component on the vehicle body frame of the vehicle, and the vehicle body frame and the exterior component at a central position in the lateral width of the vehicle A tool mounting member configured to be fitted and inserted into the mounting hole provided in the external component mounting member in a removed state;
A weight connected to the tool mounting member via a string member inserted through the axis of the tool mounting member so that the distance from the fitting insertion member can be adjusted;
When determining the vehicle width center position, the weight is suspended from the insertion member through the string member in the gravitational direction in a state where the tool attachment member is inserted into the attachment hole. An aiming tool, wherein the tool is arranged so as to contact a surface. The aiming tool according to claim 1,
The tool for aiming, wherein the tool mounting member is formed in the same outer shape as the exterior component mounting member. In order to perform the aiming of the object detection device for monitoring the front of the vehicle, a method for installing a reference sign for aiming in front of the vehicle on a horizontal floor surface on which the vehicle is placed,
An attachment hole in which an exterior component attachment member for attaching a predetermined exterior component to the vehicle body frame of the vehicle is detachably inserted, and the vehicle body frame and the exterior are positioned at a central position in the lateral width of the vehicle. A first step of removing the member for mounting the exterior component from a mounting hole provided in the component;
A tool mounting member configured to be insertable into the mounting hole from which the exterior component mounting member is removed, and the tool mounting member via a string member inserted through the axis of the tool mounting member The aiming tool is provided with a weight connected to the tool mounting member so that the distance between the tool and the tool mounting member can be adjusted. The aiming tool is inserted into the mounting hole from which the exterior component mounting member is removed in the first step. The weight is disposed so as to come into contact with the floor surface while being suspended in the direction of gravity from the tool mounting member via the string member. A second step of marking the contact point with the weight;
And a third step of installing the reference sign object at a position on the floor surface having a predetermined positional relationship with respect to a straight line extending in the front-rear direction of the vehicle through at least the mark. Installation method of reference signs for aiming. In the installation method of the reference mark object for aiming of Claim 3,
The vehicle is a vehicle provided with the mounting hole at the center position of the width in the left-right direction of the vehicle at two locations, the front portion and the rear portion of the vehicle,
The first step is a step of removing the exterior component mounting member from the two mounting holes.
The second step is a step of attaching the two marks corresponding to the two mounting holes to the floor using the aiming tool,
The aiming reference marker is characterized in that the third step is a step of installing the reference marker at a position on the floor surface having the predetermined positional relationship with respect to a straight line passing through the two marks. Installation method.

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