JP6674926B2 - Angle adjustment device - Google Patents

Description

  The present invention relates to an angle adjusting device that adjusts an inclination angle of an article that is tiltably supported by a support member.

  2. Description of the Related Art An angle adjusting device (an aiming mechanism) that adjusts an inclination angle of an article that is tiltably supported by a support member is known. For example, Patent Literature 1 discloses an angle adjusting device that adjusts an inclination angle of a reflector with respect to a lamp body in an automobile lighting device. The angle adjusting device has an aiming screw supported by a cylindrical portion formed in the lamp body and screwed into a female screw hole formed in the reflector at a tip. The aiming screw has a flange that abuts the rear end surface of the cylindrical portion, and an elastic latching piece that projects radially outward and engages with the front end surface of the cylindrical portion, and is rotatable with respect to the cylindrical portion. And it cannot move in the axial direction. When the aiming screw rotates, the insertion position of the aiming screw in the female screw hole changes, and the position of the reflector with respect to the lamp body changes.

JP 2003-19709 A

  In the above angle adjusting device, when the aiming screw is assembled to the lamp body, the elastic hooking piece is bent inward in the radial direction, passes through the tubular portion, and is restored after passing through the tubular portion, thereby restoring the tubular portion. Engage with front end face. Therefore, when removing the aiming screw from the lamp body, it is necessary to bend the elastic hooking piece radially inward, but the space between the lamp body and the reflector is narrow, and the elastic hooking piece on the front side of the lamp body is It is difficult to reach fingers and tools. Thus, there is a problem that the operability of the angle adjusting device is poor.

  In view of the above background, it is an object of the present invention to improve the operability of an angle adjusting device.

  In order to solve the above-mentioned problem, one aspect of the present invention is an angle adjusting device (10) for adjusting an inclination angle of an article (4) supported on the front side of a support member (8) so as to be tiltable with respect to the support member. A cylindrical base member (20) provided in the support member, and a female screw hole (not shown) inserted into the inner hole of the base member so as to be rotatable and immovable forward and to have a front end formed in the article. A shaft (21) provided with a male screw (51) screwed to the base member (18); and a shaft provided at a rear end of the shaft so as to be non-rotatable and non-movable forward and facing the rear end surface of the base member. A gear member (22) including an annular row of teeth (55) as a center, and a restriction for restricting rearward movement of the gear member with respect to the base member by engaging with the base member and the gear member. Element It characterized by having a 23) and.

  According to this aspect, the assembling and removing of the base member, the shaft, and the gear member can be performed by the operator on the rear surface side of the support member, so that the operability is improved. Further, the operator can engage the tool with the gear member on the rear surface side of the support member to rotate the gear member and the shaft integrally, so that the operability of the adjustment operation is good.

  Further, in the above aspect, it is preferable that the base member is inserted from a rear surface side into an insertion hole formed in the support member, which penetrates back and forth, and is locked by the insertion hole.

  According to this aspect, the base member can be removed from the support member.

  Further, in the above aspect, the base member is locked at a first rotation position at which the base member can move back and forth with respect to the insertion hole, and is prevented from moving back and forth by a hole edge of the insertion hole. Preferably, it is rotatable between the second rotation position.

  According to this aspect, the attachment and detachment of the base member to and from the support member can be performed by rotating the base member from the rear side of the support member, thereby improving operability.

  Further, in the above aspect, the restricting member may include a first protrusion (66) that protrudes into the insertion hole when the base member is at the second rotational position and restricts rotation of the base member with respect to the support member. ).

  According to this aspect, since the base member can be maintained at the second rotation position, it is possible to prevent the base member from unintentionally rotating to the first rotation position and dropping off from the support member.

  Further, in the above aspect, the restricting member is configured to contact the rear surface of the support member and urge the base member rearward against the support member when the base member is at the second rotation position. It is good to have a projection piece (67).

  According to this aspect, the backlash of the base member with respect to the support member can be prevented.

  Further, in the above aspect, the base member may have an elastic claw (81) that extends forward from a portion located behind the support member and that protrudes into and engages with the insertion hole.

  According to this aspect, attachment and detachment of the base member to and from the support member can be facilitated.

  In the above aspect, the regulation member may urge the gear member forward with respect to the base member.

  According to this aspect, it is possible to prevent rattling of the shaft with respect to the base member and rattling of the gear member with respect to the shaft.

  In the above aspect, the base member may have a locking wall (42) facing forward, and the regulating member may sandwich the locking wall and a rear end surface of the gear member. In the above aspect, the regulating member may be formed of a leaf spring material.

  According to this aspect, the coupling structure of the regulating member to the base member and the gear member can be simplified.

  Further, in the above aspect, it is preferable that a recess (57) extending in a radial direction of the inner hole and opening in an outer peripheral portion of the base member is formed in a rear end surface of the base member.

  According to this aspect, by holding the tool used for rotating the gear member in the concave portion, the position of the tool can be stabilized, and the adjustment operation can be facilitated.

  In the above aspect, the base member may be protruded from the support member, and the inner hole may penetrate the support member.

  According to this aspect, since the base member is formed integrally with the support member, attachment and detachment of the base member to and from the support member can be omitted, and operability is improved.

  According to the above configuration, the operability of the angle adjusting device can be improved.

The perspective view which shows the support structure of the millimeter wave radar which applied the angle adjustment device which concerns on 1st Embodiment. Exploded perspective view showing a support structure of a millimeter wave radar to which an angle adjusting device according to a first embodiment is applied. The perspective view which looked at the angle adjusting device concerning a 1st embodiment from the back. The perspective view which looked at the angle adjustment device concerning a 1st embodiment from the front. Plan view of the angle adjusting device according to the first embodiment Side view of the angle adjusting device according to the first embodiment Sectional view of the angle adjusting device according to the first embodiment (sectional view taken along the line VII-VII in FIG. 6) The perspective view which looked at the angle adjustment device concerning a 2nd embodiment from the back. The perspective view which looked at the angle adjustment device concerning some modification embodiments from the back.

  Hereinafter, an embodiment of an angle adjusting device of the present invention will be described with reference to the drawings. The angle adjusting device adjusts the inclination angle of the article supported on the front side of the support member so as to be tiltable with respect to the support member. Articles include radar, and electrical devices such as cameras, sensors, lighting devices, and displays. In the following embodiment, an example will be described in which an angle adjusting device is used as a support structure for attaching a radar, for example, a millimeter wave radar, to an automobile.

(1st Embodiment)
As shown in FIGS. 1 and 2, a radar 4 as an article is disposed on the back side (rear side) of the emblem 3 of the front grill 2 of the automobile 1. The radar 4 has a flat rectangular parallelepiped casing 6 as an outer shell. The casing 6 of the radar 4 is attached to the vehicle body via a support structure 7. The support structure 7 has a support member 8 attached to a frame constituting the vehicle body, one ball joint 9 connecting the support member 8 and the casing 6, and two angle adjusting devices 10.

  The support member 8 is a plate-shaped member, and is attached to the vehicle body so that the surface faces front and rear. At the upper right portion of the support member 8, a mounting hole 12 penetrating in the front-rear direction (thickness direction) is formed, and at the lower right portion and the lower left portion, an insertion hole 13 penetrating in the front-rear direction (thickness direction) is formed. ing.

  The ball joint 9 extends rearward from the upper right portion of the casing 6 and has a ball stud 15 having a ball at a tip, and a socket 16 attached to the mounting hole 12 to receive the tip of the ball stud 15 in a tiltable manner. The radar 4 is tiltably supported on the front side of the support member 8 by the ball joint 9.

  At the left and right side edges of the lower portion of the casing 6, ear portions 17 protruding sideways are provided. Each ear 17 is formed with a female screw hole 18 that penetrates forward and backward.

  As shown in FIGS. 3 to 7, the angle adjusting device 10 includes a base member 20, a shaft 21, a gear member 22, and a regulating member 23. The angle adjusting device 10 has a predetermined center axis A. Hereinafter, a description will be given based on a state in which the central axis A is arranged along the front-rear direction.

  The base member 20 is formed in a cylindrical shape, and is disposed so as to extend forward and backward coaxially with the central axis A. At the center of the base member 20, an inner hole 26 that penetrates back and forth is formed. A base base portion 27 at one end (rear end) of the base member 20 in a direction along the center axis A is orthogonal to the center axis A with respect to a base tip 28 at the other end (front end). The width in the direction to be formed is large. At a boundary between the base base end portion 27 and the base tip end portion 28, a base shoulder portion 31 is formed which has a surface perpendicular to the central axis A and has a shoulder surface facing forward. The base shoulder portion 31 forms a front end surface of the base base end portion 27 and is formed in an annular shape around the central axis A.

  The base distal end portion 28 has a cylindrical portion 33 extending along the central axis A, and a pair of locking pieces 34 protruding radially outward from an outer peripheral surface at the distal end side of the cylindrical portion 33. The pair of locking pieces 34 are provided at 180 ° intervals in the circumferential direction of the cylindrical portion 33. Each locking piece 34 is arranged at a distance from the base shoulder 31 in the direction along the central axis A. A pair of stopper walls 35 protruding radially outward are provided on the outer peripheral surface of the cylindrical portion 33. Each stopper wall 35 extends in the longitudinal direction of the cylindrical portion 33, is connected to the base shoulder 31 at the rear end, and is connected to the locking piece 34 at the front end. The stopper wall 35 is connected to one side of the locking piece 34 in the circumferential direction around the central axis A. The locking piece 34, the stopper wall 35, and the base shoulder 31 cooperate with each other to define an engagement recess 36, which is a recess opened in both the circumferential direction and the radially outward direction of the cylindrical portion 33.

  As shown in FIGS. 4, 6 and 7, a pair of locking grooves 41 extending in the direction along the central axis A and opening outward in the radial direction are formed on the outer peripheral portion of the base end portion 27. ing. The front end of each locking groove 41 is open to the base shoulder 31, and the rear end of the locking groove 41 is closed by a locking wall 42 that faces forward. The front side surface of the locking wall 42 is formed in a plane perpendicular to the central axis A. On the locking wall 42, a locking projection 43 protruding forward is formed.

  As shown in FIG. 7, the inner hole 26 penetrates the base proximal end portion 27 and the base distal end portion 28 back and forth. The inner hole 26 is a stepped hole having a circular cross section, and a rear end portion is formed to have a larger inner diameter than other portions. In the inner hole 26, an inner hole shoulder portion 45 having a shoulder surface facing rearward is formed at the front end of the rear end portion having an inner diameter larger than other portions.

  The shaft 21 is a shaft member having a circular cross section. On one end side of the shaft 21 in the longitudinal direction, an annular engaging convex portion 48 protruding radially outward and extending in the circumferential direction is formed. The shaft 21 is inserted into the inner hole 26 from the rear, and the insertion depth with respect to the inner hole 26 is determined by the engagement protrusion 48 abutting against the shoulder 45 of the inner hole. The shaft 21 is arranged coaxially with the central axis A while being inserted into the inner hole 26, and its front end and rear end protrude outside the inner hole 26. A male screw 51 that can be screwed into the female screw hole 18 is formed on the outer peripheral surface of the front end of the shaft 21. At the rear end of the shaft 21, a prism-shaped fitting portion 52 is provided coaxially.

  The shaft 21 is rotatably inserted into the inner hole 26 so as not to move forward. It is preferable that the outer peripheral surface of the shaft 21 be in close contact with the inner peripheral surface of the inner hole 26 so that a predetermined amount of rotational resistance is generated with respect to the rotation of the shaft 21 with respect to the inner hole 26. That is, it is preferable that the shaft 21 be in close contact with the inner hole 26 so as to prevent the shaft 21 from rattling with respect to the inner hole 26 in the radial direction, unintended rotation, and axial movement. For example, the shaft 21 may be pressed into the inner hole 26.

  The gear member 22 is formed in a disk shape, and has a bottomed fitting hole 54 into which the fitting portion 52 can be fitted in the center of one surface. By fitting the fitting portion 52 into the fitting hole 54, the gear member 22 is provided at the rear end of the shaft 21 so as not to rotate and to move forward. When mounted on the shaft 21, the gear member 22 is arranged coaxially with the center axis A, and one surface (front surface) faces the rear end surface of the base 27 at a predetermined distance. In a portion of the gear member 22 facing the rear end surface of the base proximal end portion 27, a tooth row 55 arranged annularly around the shaft 21 is formed. With the tooth row 55, the gear member 22 forms a bevel gear. The gear member 22 may be configured as, for example, a straight bevel gear or a crown gear.

  As shown in FIGS. 4 and 5, a pair of tool supporting concave portions 57 are formed on the rear end surface of the base proximal end portion 27. The tool support recess 57 is recessed forward, extends in the radial direction of the central axis A, and opens on the outer peripheral surface of the base proximal end 27. The cross section of the tool supporting concave portion 57 is formed in a semicircular shape, and can receive a semi-peripheral portion at the tip of a shaft portion of the adjusting tool described later. The end of the tool supporting concave portion 57 on the side of the center axis A is closed, and by contacting the tip of the shaft portion of the adjusting tool inserted from the radial direction, the insertion depth of the Phillips screwdriver is regulated. The tool support concave portion 57 faces the tooth row 55 of the gear member 22. The pair of tool support recesses 57 are arranged at symmetrical positions about the center axis A.

  As shown in FIGS. 4 to 7, the regulating member 23 includes a disc-shaped central portion 61, and a pair of arm portions 62 extending to one side substantially perpendicular to the central portion 61 from opposite ends of the central portion 61. And Each of the arm portions 62 includes an arm base end portion 63 extending substantially perpendicularly to the center portion 61 from opposite ends of the center portion 61, and an arm shoulder portion 64 extending from the tip end of each arm base portion 63 toward each other. And an arm tip 65 extending substantially perpendicularly to the center 61 from opposite ends of the arm shoulders 64 in a direction opposite to the center 61. The arm shoulder 64 is preferably inclined from the tip of the arm base end 63 toward the center 61. The arm tip 65 has a first protrusion 66 and a second protrusion 67 that bifurcate and extend in parallel with each other. The tips of the first projecting piece 66 and the second projecting piece 67 are curved by about 90 ° toward the outside of the central portion 61 when viewed from the direction facing the central portion 61. The central portion 61 has a through hole 68 at its center in the thickness direction, and is formed in an annular shape. The restricting member 23 is preferably a single leaf spring member formed by bending a metal plate. A locking hole 69 penetrating in the thickness direction is formed in the arm shoulder 64.

  The regulating member 23 regulates the rearward movement of the gear member 22 with respect to the base member 20 by engaging with the base member 20 and the gear member 22. The regulating member 23 is disposed such that the central portion 61 faces the rear surface of the gear member 22, and each arm portion 62 is engaged with the locking groove 41 on the base member 20 side, and is mounted on the base member 20. When the pair of arm shoulders 64 and the pair of arm tip portions 65 are received in the corresponding locking grooves 41, the movement of the regulating member 23 relative to the base member 20 in the circumferential direction is regulated. Further, since each of the locking projections 43 is hooked on each of the locking holes 69, the displacement of the regulating member 23 with respect to the base member 20 is further suppressed.

  Each arm shoulder 64 abuts against the locking wall 42 of the corresponding locking groove 41 and the central portion 61 abuts on the rear surface of the gear member 22, so that a gap between the pair of arm shoulders 64 and the central portion 61. , A base member 20, a shaft 21, and a gear member 22 are sandwiched. Accordingly, the shaft 21 moves backward with respect to the base member 20 (that is, the shaft 21 comes out of the base member 20), and the gear member 22 moves backward with respect to the shaft 21 (that is, the gear member 22 comes out of the shaft 21). ) Is regulated. The central portion 61 of the regulating member 23, the pair of arm base ends 63, and the pair of arm shoulders 64 function as a holding portion for holding the base member 20, the shaft 21, and the gear member 22. In order to prevent the base member 20, the shaft 21 and the gear member 22 from rattling in the direction of the central axis A, the regulating member 23 urges the base member 20 and the gear member 22 in a direction approaching each other (with a preload). Sandwiching) is preferable.

  As shown in FIG. 5, the distal ends of the first protruding piece 66 and the second protruding piece 67 forming the arm distal end 65 protrude forward from the locking groove 41 to form the base shoulder 31 (the base proximal end 27). Front end face).

  As shown in FIG. 2, the angle adjusting device 10 is assembled to the support member 8 by being inserted into the insertion hole 13 from the rear side of the support member 8. The insertion hole 13 has a central portion 71 formed in a circular shape, a pair of first extended portions 72 extending radially outward from the central portion 71, and further radially outward from each of the first extended portions 72. It has a pair of second extended portions 73 that extend. The central portion 71 is formed in a size that allows the cylindrical portion 33 of the base distal end portion 28 to pass therethrough and does not allow the base proximal end portion 27 to pass through. The pair of first extended portions 72 are formed at intervals of 180 ° in the circumferential direction, and are formed to have a size that allows the pair of locking pieces 34 of the base distal end portion 28 to pass therethrough. The second expanded portion 73 has a smaller width in the circumferential direction than the first expanded portion 72 and is formed to have a size that allows the first projecting piece 66 to pass through.

  When attaching the angle adjusting device 10 to the support member 8, first, the tip of the shaft 21 is inserted into the insertion hole 13, and the pair of locking pieces 34 are made to correspond to the pair of first extended portions 72, and the base distal end 28 is moved. It is inserted into the insertion hole 13. The angle adjusting device 10 is inserted into the insertion hole 13 until the front end surface of the base base portion 27 contacts the rear surface of the support member 8. As described above, the pair of locking pieces 34 face the pair of first extended portions 72, and the angle adjusting device 10 can be moved back and forth with respect to the insertion hole 13. The rotation position is defined as a first rotation position. When the base member 20 is inserted into the insertion hole 13 and is at the first position, the tips of the first projecting piece 66 and the second projecting piece 67 abut against the rear surface of the support member 8 and are elastically deformed. Is biased rearward with respect to the support member 8.

  When the base member 20 is rotated from the first rotation position about the central axis A with the base distal end portion 28 inserted into the insertion hole 13, the pair of locking pieces 34 face the front surface of the support member 8. Therefore, the base member 20 cannot move backward with respect to the support member 8. That is, the pair of locking pieces 34 engage with the hole edge of the insertion hole 13, restricting the rearward movement of the support member 8 with respect to the base member 20, and the base member 20 is coupled to the insertion hole 13 in a bayonet manner. . Further, the support member 8 is located between the pair of locking pieces 34 and the front end surface of the base base end portion 27, and the base member 20 cannot move back and forth with respect to the support member 8. The base member 20 can rotate from the first rotation position to a second rotation position where the stopper wall 35 abuts on the peripheral edge of the first extension 72 in the circumferential direction. Thus, the angle adjustment device 10 is rotatable about the central axis A between the first rotation position and the second rotation position. In the second rotation position, one peripheral edge of the first extension 72 in the circumferential direction is located in the engagement recess 36 and locked. As shown in FIG. 3, in the present embodiment, at the second rotation position, the tool support concave portion 57 is arranged so as to open vertically.

  As shown in FIG. 3, when the base member 20 reaches the second rotation position, the tips of the first protruding pieces 66 respectively protrude into the second expansion portions 73, and the rotation of the base member 20 with respect to the support member 8 is restricted. Is done. The distal end of each second protrusion 67 is elastically deformed and abuts against the rear surface of the support member 8 to urge the base member 20 rearward with respect to the support member 8. As a result, the pair of locking pieces 34 come into close contact with the front surface of the support member 8 and rattling between the support member 8 and the base member 20 is prevented.

  A male screw 51 provided at the front end of the shaft 21 is screwed into the female screw hole 18 of the casing 6. The length of the casing 6 with respect to the support member 8 is determined by the length of insertion (insertion length) of the male screw 51 into the female screw hole 18.

  In order to rotate the shaft 21, an adjusting tool that can be engaged with the teeth 55 of the gear member 22 is used. The adjusting tool includes a shaft portion and a gear portion formed at a tip of the shaft portion and arranged in a circumferential direction. The adjusting tool may be, for example, a Phillips screwdriver. By inserting the adjustment tool into the tool support recess 57 from the radial direction with respect to the center axis A, a part of the gear portion of the adjustment tool projects rearward from the tool support recess 57 and meshes with the tooth row 55. When the adjusting tool is rotated about an axis extending in the radial direction of the central axis A in this state, the gear member 22 and the shaft 21 connected to the gear member 22 rotate about the central axis A. Since the adjusting tool is supported by the tool supporting recess 57 in the circumferential direction around the center axis A, the position is stabilized when the gear member 22 is rotated. As described above, the shaft 21 is rotated by rotating the gear member 22 with the adjusting tool, so that the screwing length of the male screw 51 into the female screw hole 18 can be adjusted.

  A procedure for removing the angle adjusting device 10 from the support member 8 will be described. First, the male screw 51 is pulled out from the female screw hole 18 by rotating the gear member 22 and the shaft 21 with an adjusting tool. Next, each arm 62 of the regulating member 23 is elastically deformed in the radial direction of the center axis A by a finger, a tool, or the like, each arm 62 is detached from each locking groove 41, and the regulating member 23 is Remove from the gear member 22. Then, the base member 20 can be removed from the support member 8 by rotating the base member 20 from the second rotation position to the first rotation position and pulling the base member 20 backward from the insertion hole 13. After being removed from the support member 8, the angle adjusting device 10 can be formed again by assembling the regulating member 23 to the base member 20, the shaft 21, and the gear member 22. Thus, the angle adjustment device 10 can be reused.

  In the angle adjusting device 10 configured as described above, the worker can attach and detach the base member 20 to and from the support member 8 by rotating the base member 20 from the rear side of the support member 8. There is no need to insert a hand or a tool into a narrow space between the radar 4 and the front surface of the support member 8, and the operability is good. In addition, since the operator can engage the adjustment tool with the gear member 22 on the rear surface side of the support member 8 to rotate the gear member 22 and the shaft 21 integrally, the operability of the adjustment work is also good. .

(2nd Embodiment)
The angle adjusting device 80 according to the second embodiment differs from the angle adjusting device 10 according to the first embodiment in the structure of the base member 20 and the regulating member 23, which will be described later, and the other structures are the same. . About the same structure, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In the angle adjusting device 80 according to the second embodiment, a pair of locking pieces 34, a stopper wall 35, and an engaging recess 36 are omitted from the base member 20 with respect to the angle adjusting device 10 according to the first embodiment. The one projecting piece 66 and the second projecting piece 67 are omitted from the regulating member 23.

  The insertion hole 13 into which the angle adjusting device 80 is inserted has a central portion 91 formed in a circular shape, and a pair of extended portions 92 extending radially outward from the central portion 71. The central portion 91 is formed in a size that allows the cylindrical portion 33 of the base distal end portion 28 to pass therethrough and does not allow the base proximal end portion 27 to pass through. The pair of extended portions 92 are formed at intervals of 180 ° in the circumferential direction.

  A pair of elastic claws 81 are provided at the base end 27 of the base member 20 located behind the support member 8. Each elastic claw 81 projects radially outward from the bottom of each locking groove 41, and then bends and extends forward. The distal end of each elastic claw 81 projects forward from the base shoulder 31 and is radially opposed to the outer peripheral surface of the cylindrical portion 33 via a gap. On the radially outer surface at the tip of each elastic claw 81, a claw portion 82 protruding radially outward is formed. The claw portion 82 has a locking surface facing rearward at the rear end.

  When the base member 20 is fixed to the insertion hole 13, the base distal end portion 28 is inserted into the center portion 91 of the insertion hole 13 from behind, and each elastic claw 81 is inserted into each expansion portion 92. At this time, each elastic claw 81 bends radially inward, so that the claw portion 82 passes through each extension portion 92 and when the insertion of the base distal end portion 28 into the center portion 91 is completed, each elastic claw 81 Is restored, and each claw portion 82 is locked on the front surface of the hole edge of each extension portion 92. The base member 20 is fixed to the support member 8 by sandwiching the support member 8 between the base shoulder 31 and each of the claws 82.

  When removing the base member 20 from the insertion hole 13, the operator bends the portion of each elastic claw 81 located behind the support member 8 radially inward with a finger, a tool, or the like, and causes the claw portion 82 to extend to each of the extended portions. It is preferable to be separated from the hole edge of the hole 92 so as to be able to pass through the extended portion 92.

  Although the description of the specific embodiments has been completed above, the present invention can be widely modified without being limited to the above embodiments. For example, in the above embodiment, the base member 20 may be formed integrally with the support member 8. In this case, the cylindrical base member 20 may be protruded from the front surface and the rear surface of the support member 8. Since the base member 20 does not need to be assembled to the support member 8, the second expansion portion 73 can be omitted as shown in FIG. 9, and the arm tip 65 does not branch and contacts the rear surface of the support member 8. It is good to consist of one projection. The angle adjusting device 10 is configured by assembling the shaft 21, the gear member 22, and the regulating member 23 to the base member 20 during use.

4: Radar (article)
7: Support structure 8: Support member 9: Ball joint 10: Angle adjusting device 13: Insertion hole 15: Ball stud 17: Ear 18: Female screw hole 20: Base member 21: Shaft 22: Gear member 23: Restriction member 26: Inner hole 41: Locking groove 42: Locking wall 51: Male screw 55: Tooth row 57: Tool support concave portion 62: Arm 66: First protruding piece 67: Second protruding piece 81: Elastic claw

Claims (11)

An angle adjusting device for adjusting an inclination angle of the article supported on the front side of the support member to be tiltable with respect to the support member,
A cylindrical base member provided on the support member,
A shaft that is rotatably inserted into the inner hole of the base member and cannot be moved forward, and has a male screw at its front end that is screwed into a female screw hole formed in the article;
A gear member that is provided at the rear end of the shaft so as to be non-rotatable and immovable forward, and includes a tooth row annularly arranged around the shaft at a portion facing the rear end surface of the base member;
A regulating member that regulates rearward movement of the gear member with respect to the base member by engaging with the base member and the gear member.   The angle adjusting device according to claim 1, wherein the base member is inserted from a rear surface side into a front and rear insertion hole formed in the support member, and is locked in the insertion hole.   The base member is between a first rotation position where it can move back and forth with respect to the insertion hole, and a second rotation position where the base member is locked at the hole edge of the insertion hole and is restricted from moving back and forth. The angle adjustment device according to claim 2, wherein the angle adjustment device can be rotated.   The said restricting member has a 1st protruding piece part which protrudes into the said insertion hole when the said base member is in a 2nd rotation position, and restricts rotation of the said base member with respect to the said support member. 4. The angle adjusting device according to 3.   The regulating member may include a second protruding piece that abuts on a rear surface of the support member and urges the base member rearward against the support member when the base member is at the second rotation position. The angle adjusting device according to claim 3 or claim 4, wherein   The angle adjusting device according to claim 2, wherein the base member extends forward from a portion located rearward of the support member, and has an elastic claw that protrudes into and engages with the insertion hole.   The angle adjusting device according to claim 2, wherein the regulating member urges the gear member forward with respect to the base member. The base member has a locking wall facing forward,
The angle adjusting device according to any one of claims 2 to 7, wherein the regulating member sandwiches the locking wall and a rear end surface of the gear member.   The angle adjusting device according to claim 2, wherein the regulating member is formed of a leaf spring material.   The concave part which extended in the radial direction of the said inner hole and which opened in the outer peripheral part of the said base member is formed in the rear end surface of the said base member, The any one of Claims 2-9 characterized by the above-mentioned. An angle adjusting device according to item 1. The base member is protruded from the support member,
The angle adjusting device according to claim 1, wherein the inner hole penetrates the support member.

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