JP5473875B2 - Rod engagement tool - Google Patents

Description

  The present invention relates to a rod engaging tool, and more particularly to a rod engaging tool for releasably connecting a distal end portion of a rod member to a fixed side member.

  The front hood of the automobile is detachably engaged with the rod engaging tool attached to the inner panel of the front hood, with the distal end of the rod member attached to the vehicle body side so that the base end can be rotated. Maintains the open state of the vehicle body.

  As a rod engaging tool used for such applications, a base member fixed to an inner panel (fixed side member) and a connecting portion (rod engaging) connected to the tip of the rod member so as to be detachable. A structure including a holding member (rod connecting member) that is rotatably attached to a base member is known (for example, Patent Document 1).

  According to this rod engaging tool, since the rod connecting member can rotate with respect to the base member fixed to the inner panel, the direction in which the tip end portion of the rod member is latched to the rod engaging portion of the rod connecting member. The degree of freedom increases, and the operability of hooking the tip end portion of the rod member on the rod engaging portion is improved.

JP 2002-53073 A

  However, in the conventional rod engaging tool as described above, the rod connecting member can be rotated with respect to the base member fixed to the inner panel. Therefore, the rod connecting member when the rod engaging tool is assembled to the inner panel. The rotational positions of the rod connecting members are individually different, and an operation of positioning the rod connecting member at a predetermined initial rotational position (default position) after assembly is added. This becomes more conspicuous as the degree of freedom of rotation of the rod connecting member relative to the base member increases, and the work load for positioning the rod connecting member at a predetermined initial position increases.

  The problem to be solved by the present invention is that the rod connecting member is accurately positioned at a predetermined initial rotating position even if the degree of freedom of rotation of the rod connecting member with respect to the base member is high. It is to reduce the work burden of positioning the connecting member at a predetermined initial rotation position.

  The rod engaging tool according to the present invention is a rod engaging tool (10) for releasably connecting the distal end portion of the rod member (104) to the stationary member (102), and the receiving engaging recess (28) on the inside. ) Including a cylindrical protrusion (24) defining a base member (20) fixed to the fixed side member (102), and the base member (20) inserted into the receiving recess (28) and the base A leg portion (58) connected to the member (20) and a rod engaging portion (54) integrally formed with the leg portion (58) and removably engaged with the tip end portion (104A) of the rod member (104). The rod connecting member (50) includes a first insertion position in which the leg portion (58) is inserted into the receiving recess (28) by a first predetermined amount. And the leg (58) is inserted into the receiving recess (28). It is movable between a second insertion position where a second predetermined amount smaller than a predetermined amount of 1 is inserted, and the base member (20) is engaged with the base member (20) by detent engagement at the first insertion position. ) At one rotation position, and at the second insertion position, it is disengaged from the anti-rotation engagement with the base member (20) and rotates with respect to the base member (20). It becomes possible.

  According to this configuration, when the rod connecting member (50) is in the first insertion position at the time of the assembling work with respect to the stationary member (102), the rod connecting member (50) is prevented from rotating around the base member (20). Since the rod connecting member (50) is not rotatable at one rotation position defined in advance with respect to the base member (20), that is, a predetermined initial rotation position, The rod engaging tool (10) can be assembled to the stationary member (102) in a state where 50) is accurately positioned at a predetermined initial rotation position.

  Thereby, even if the degree of freedom of rotation of the rod connecting member 50 with respect to the base member (20) is high due to the spherical joint type or the like, the operation of positioning the rod connecting member (50) at the predetermined initial rotating position after the assembling operation. There is no need to do.

  In one preferred embodiment of the rod engaging device according to the present invention, the leg portion (58) includes a spherical outer peripheral portion (66), and the receiving recess portion (28) has the leg portion at the second insertion position. It includes a spherical inner periphery (36) in spherical contact with the spherical outer periphery (66) of a certain leg (58).

  According to this configuration, the rod connecting member (50) can rotate 360 degrees around the center of the locking recess (28) with respect to the base member (20) and has a small inclination with respect to the vertical axis. It becomes possible to swing, and the degree of freedom of rotation of the rod connecting member (50) with respect to the base member (20) increases. The spherical outer peripheral portion (66) of the leg portion (58) and the spherical inner peripheral portion (36) of the receiving recess (28) are in surface contact with a relatively wide area by spherical contact, so that the base member (20) The generation of a squeaking noise when the rod connecting member (50) is rotated with respect to is suppressed and prevented.

  In one preferred embodiment of the rod engaging device according to the present invention, a locking projection (64) is formed on one of the leg (58) and the receiving recess (28), and the engagement is on the other. A locking recess (32) into which the locking projection (64) can be fitted is formed, and the locking projection (66) is fitted into the locking recess (32) at the first insertion position. As a result, the rod connecting member (50) engages with the base member (20) in a non-rotating manner so that the rod connecting member (50) cannot rotate with respect to the base member (20) at one rotational position. In the insertion position, the locking projection (66) is disengaged from the fitting with the locking recess (32), so that the rod connecting member (50) is prevented from rotating with the base member (20). It is disengaged from the engagement and can rotate with respect to the base member (20).

  According to this configuration, the rod connecting member (50) is locked to the base member (20) with a simple and reliable structure by fitting the locking convex portion (64) and the locking concave portion (32). Match.

  In the rod engaging tool according to the present invention, preferably, the leg (58) moves between the first insertion position and the second insertion position on the inner peripheral portion of the receiving recess (28). In this case, the leg portion (58) has a click stop convex portion (34) that the leg portion (58) gets over.

  According to this configuration, the movement of the rod connecting member (50) from the first insertion position to the second insertion position gives a sense of moderation with the leg portion (58) getting over the click stop convex portion (34). Moreover, in the second insertion position, the leg portion (58) passes over the click stop convex portion (34), so that the rod connecting member (50) is inadvertently moved from the second insertion position. No return to 1 insertion position.

  In one preferred embodiment of the rod engaging device according to the present invention, the cylindrical projection (24) has an elastic locking piece (38) on the outer periphery, and the base member (20) is the cylindrical projection. The portion (24) is inserted into the mounting hole (106) formed in the stationary member (102), and the elastic locking piece (38) engages with the opening edge of the mounting hole (106). Accordingly, the leg portion (58) is fixed to the fixed-side member (102) in a retaining state, and the leg portion (58) is positioned at the second insertion position, whereby the leg portion (58) is fixed to the elastic locking piece (38). The elastic locking piece (38) is prevented from being elastically deformed in the direction of being disengaged from the engagement with the opening edge.

  According to this configuration, the attachment of the base member (20) to the stationary member (102) by the elastic locking piece (38) becomes strong.

  In the rod engagement tool according to the present invention, when the rod connecting member is in the first insertion position during the assembly operation with respect to the fixed side member, the rod connecting member engages with the base member to prevent the rod connecting member from rotating. Since the rotation is impossible at a predetermined rotation position, that is, a predetermined initial rotation position, the rod connecting member is accurately positioned at the predetermined initial rotation position. The engaging tool can be assembled to the fixed side member.

  As a result, even if the degree of freedom of rotation of the rod connecting member with respect to the base member is high, the rod connecting member is accurately positioned at the predetermined initial rotating position, and then the rod connecting member is moved to the predetermined initial rotation. The work burden placed at the moving position can be reduced.

The perspective view of the vehicle body front part which shows the usage example which applied the rod engaging tool by this invention to the rod engaging tool for the rod member for the open state maintenance of the front hood of a motor vehicle. The side view which shows one Embodiment of the rod engaging tool by this invention. The longitudinal cross-sectional view of the rod engaging tool by this embodiment. Sectional drawing in the 1st insertion position state along line IV-IV of FIG. Sectional drawing in the 2nd insertion position state along line IV-IV of FIG. The top view of the base member which is one component of the rod engaging tool by this embodiment. The side view of the rod connection member which is one component of the rod engaging tool by this embodiment. The bottom view of the rod connection member which is one component of the rod engaging tool by this embodiment (the VIII arrow view of FIG. 7).

  First, the usage example of the rod engaging tool by this invention is demonstrated with reference to FIG. FIG. 1 shows a use example in which the rod engaging tool 10 of the present embodiment is applied to a rod engaging tool for a rod member 104 for maintaining an open state of a front hood 100 of an automobile. The rod engaging tool 10 is attached to the inner panel 102 of the front hood 100. The front hood 100 is in an open state in which the front end portion 104A of the rod member 104 that is pivotally attached to the vehicle body side is releasably engaged with the rod engagement tool 10 to be lifted from the vehicle body. To maintain.

  Next, one embodiment of the rod engaging tool 10 will be described with reference to FIGS.

  The rod engaging tool 10 includes a base member 20 and a rod connecting member 50. Both the base member 20 and the rod connecting member 50 are injection molded products made of synthetic resin such as polyacetal.

  The base member 20 includes a plate-like portion 22, and a cylindrical protrusion 24 and a positioning protrusion 26 that are formed to protrude downward from the plate-like portion 22 as viewed in FIGS. 2 to 5.

  As shown in FIGS. 3 to 5, the cylindrical protrusion 24 has a cylindrical shape and defines a receiving recess 28 inside. The receiving recess 28 has a substantially cylindrical shape with a bottom, and a plurality of locking recesses 32 each having a slit groove shape are formed on the bottom 30. The locking recess 32 is required to be an arrangement position related to the arrangement position of the positioning projection 26 and not to be point-symmetric with respect to the center of the receiving depression 28. In the present embodiment, as shown in FIG. 6, there are three locking recesses 32 and they are arranged around the center of the receiving recess 28 at positions separated from each other by a rotation angle of 90 degrees.

  As shown in FIG. 3, a click stop convex portion 34 is formed at a predetermined depth position on the inner peripheral portion of the receiving concave portion 28. The click stop convex portion 34 has a depth that the upper half hemisphere 62 of the leg portion 58 gets over when the leg portion 58 of the rod connecting member 50 described later moves between a first insertion position and a second insertion position described later. Is in position. The inner peripheral portion of the receiving concave portion 28 on the opening end side (the upper side in FIG. 3) from the click stop convex portion 34 is formed as a concave spherical inner peripheral portion 36.

  The outer periphery of the cylindrical projection 24 is elastically locked by a slit 36 (see FIG. 2) formed in the cylindrical projection 24 and a slit 37 (see FIGS. 4 to 6) formed in the plate-like portion 22. A piece 38 is formed. The elastic locking piece 38 has a cantilever shape in which only the bottom 30 side of the receiving recess 28 is integrally connected to the cylindrical protrusion 24 so that it can be elastically deformed in a spring-like manner in the radial direction of the receiving recess 28. It has become.

  The elastic locking pieces 38 are provided at positions separated from each other around the center of the receiving recess 28 with a rotation angle of 180 degrees. In the present embodiment, the two elastic locking pieces 38 are at the same rotation angle position as the two locking recesses 32 of the three locking recesses 32 that are rotationally displaced by 180 degrees (FIG. 6). reference). In addition, the elastic locking piece 38 is located closer to the opening end of the receiving recess 28 than the click stop projection 34, the inner peripheral side is provided by the spherical inner peripheral portion 34, and the check pawl-shaped protrusion is formed on the outer peripheral side. The portion 40 is formed to protrude.

  The positioning projection 26 is located at a position sufficiently separated from the cylindrical projection 24 and is formed in a hollow quadrangular prism shape in this embodiment (see FIG. 6).

  As shown in FIGS. 3 to 5 and 7, the rod connecting member 50 protrudes to the flange portion 52 and the other side of the flange portion 52 (the upper side in FIGS. 3 to 5 and 7). The rod engaging portion 54 is formed, and the leg portion 58 is formed so as to protrude from the flange portion 52 to one side (lower side as viewed in FIGS. 3 to 5 and 7).

  The rod engaging portion 54 is formed in an annular shape having an opening 56, and a rod-shaped tip portion 104 </ b> A of the rod member 104 is inserted into the opening 56 so as to be inserted and removed. Thereby, the front-end | tip part 104A of the rod member 104 engages with the rod engaging part 54 so that engagement / disengagement is possible. The rod engaging portion 54 has directionality in the penetrating direction of the opening portion 56 (left and right direction in FIGS. 2 and 3) with respect to the engagement and disengagement of the tip portion 104A of the rod member 104 depending on the opening direction of the opening portion 56. Become a thing.

  The leg portion 58 includes a shank portion 60 that hangs down from the flange portion 52, an upper half hemisphere portion 62 formed at the tip (lower end) of the shank portion 60, and an engaging projection formed at the lower bottom portion of the upper half hemisphere portion 62. And a stop convex portion 64. The upper half hemispherical portion 62 is a convex spherical outer peripheral portion 66 that makes spherical contact with the spherical inner peripheral portion 34 of the receiving concave portion 28.

  The locking convex portion 64 is required to have an arrangement position related to the penetrating direction of the opening 56 and not symmetrical with respect to the central axis of the leg portion 58. In the present embodiment, as shown in FIG. 8, there are three locking convex portions 64, which are arranged at positions apart from each other with a rotation angle of 90 degrees around the central axis of the leg portion 58. .

  As shown in FIGS. 3 and 4, the rod connecting member 50 has a first insertion position where the leg portion 58 is inserted into the receiving recess 28 by a first predetermined amount, that is, deeply inserted, and FIG. As shown in FIG. 2, the leg 58 is inserted into the receiving recess 28 with a second predetermined amount smaller than the first predetermined amount, that is, between the second insertion position where it is inserted shallowly. Yes.

  In the first insertion position described above, the three locking projections 64 are all fitted into the locking recesses 32, whereby the rod connecting member 50 is engaged with the base member 20 to prevent rotation. 50 becomes non-rotatable at one rotation position defined in advance with respect to the base member 20. This one predefined rotation position is the initial rotation position, and the rotation position where the opening direction of the opening 56 of the rod engaging portion 54 is, for example, the direction shown in FIG. It is.

  In the second insertion position described above, all the three locking projections 65 are disengaged from the engagement with the respective locking recesses 32, so that the rod connecting member 50 is prevented from being rotated and engaged with the base member 20. Detachable and turnable with respect to the base member 20. In this second insertion position, as shown in FIG. 5, the spherical outer peripheral portion 66 of the leg portion 58 comes into spherical contact with the spherical inner peripheral portion 36 of the receiving recess 28. Accordingly, at the second insertion position, the rod coupling member 50 and the base member 20 are connected in a spherical joint type, and the rod coupling member 50 rotates 360 degrees around the center of the locking recess 28 with respect to the base member 20. It is possible to swing the head with a small inclination angle with respect to the vertical axis.

  At the time of assembling work for assembling the rod engaging tool 10 to the inner panel 102 which is a fixed side member, the cylindrical protrusion 24 of the base member 20 with the rod connecting member 50 coupled to the base member 20 at the first insertion position. Is inserted into a mounting hole 106 (see FIG. 3) formed by a round hole formed in the inner panel 102, and a positioning hole 108 formed by a square hole formed in the inner panel 102 (see FIG. 3). 3).

  When the positioning protrusion 26 is inserted into the positioning hole 108, the base member 20 is positioned with respect to the inner panel 102, and as shown in FIGS. 4 and 5, the elastic locking piece 38 of the base member 20 is positioned. The protrusion 40 climbs over the opening edge of the mounting hole 106 and the elastic locking piece 38 engages with the opening edge of the mounting hole 106, whereby the base member 20 is attached to the inner panel 102 to prevent it from coming off.

  At the time of this assembling work, since the rod connecting member 50 is in the first insertion position, all the three locking convex portions 64 are fitted into the respective locking concave portions 32 so that the rod connecting member 50 is fixed to the base member 20. Since the rod connecting member 50 is non-rotatable at one rotation position defined in advance with respect to the base member 20, that is, a predetermined initial rotation position, the base member 20 is In combination with the positioning and mounting on the inner panel 102, the rod engaging member 10 is assembled to the inner panel 102 in a state where the rod connecting member 50 is accurately positioned at a predetermined initial rotation position with respect to the inner panel 102.

  Thereby, even if the degree of freedom of rotation of the rod connecting member 50 with respect to the base member 20 is high by a spherical joint type or the like, it is necessary to perform an operation of positioning the rod connecting member 50 at a predetermined initial rotating position after the assembling operation. Disappear.

  When the assembly work is completed, the rod connecting member 50 is moved from the first insertion position to the second insertion position. When the rod connecting member 50 is located at the second insertion position, all the three locking projections 65 are disengaged from the fittings with the respective locking recesses 32 so that the rod connecting member 50 is connected to the base member 20. The rod coupling member 50 can be rotated with respect to the base member 20 by being disengaged from the detent engagement. In the second insertion position, the spherical outer peripheral portion 66 of the leg portion 58 comes into spherical contact with the spherical inner peripheral portion 36 of the receiving recess 28, and the rod connecting member 50 and the base member 20 are connected in a spherical joint type.

  As a result, the rod connecting member 50 can rotate 360 degrees around the center of the locking recess 28 with respect to the base member 20 and can swing with a small inclination angle with respect to the vertical axis. The degree of freedom of rotation of the rod connecting member 50 is increased. Since the spherical outer peripheral portion 66 of the leg portion 58 and the spherical inner peripheral portion 36 of the receiving concave portion 28 are in surface contact with a relatively large area by spherical contact, the rod connecting member 50 is rotated with respect to the base member 20. Generation of squeak noise due to surface pressure is suppressed or prevented.

  The movement from the first insertion position to the second insertion position is performed with a sense of moderation accompanied by the upper half hemisphere portion 62 of the leg portion 58 getting over the click stop convex portion 34. In addition, at the second insertion position, the upper half hemispherical portion 62 of the leg portion 58 passes over the click stop convex portion 34, so that the rod connecting member 50 inadvertently returns from the second insertion position to the first insertion position. There is nothing.

  In the second insertion position, the upper half hemisphere portion 62 of the leg portion 58 abuts the back surface of the elastic locking piece 38 with the spherical inner peripheral portion 34, so that the elastic locking piece 38 is in contact with the opening edge of the mounting hole 106. It is prevented from elastically deforming in the direction of detachment (inward in the radial direction) from the engagement. Thereby, the attachment to the inner panel 102 of the base member 20 by the elastic locking piece 38 becomes firm. In addition, since the elastic locking piece 38 is prevented from elastically deforming radially outward by engagement with the opening edge of the mounting hole 106, the spherical outer peripheral portion 66 of the leg portion 58 and the receiving recess 28. In combination with the spherical engagement with the spherical inner peripheral portion 36, the rod connecting member 50 at the second insertion position is also prevented from coming off.

  The rod engaging tool 10 according to the present invention is not limited to the above-described embodiment, and various embodiments and modifications are possible within the scope of the technical idea of the present invention. For example, the locking concave portion 32 may be formed in the rod connecting member 50, and the locking convex portion 64 may be formed in the base member 20. Further, the rod engaging portion 54 of the rod connecting member 50 may have a bowl shape instead of an annular shape.

DESCRIPTION OF SYMBOLS 10 Rod engaging tool 20 Base member 24 Cylindrical protrusion part 26 Positioning protrusion part 28 Receiving recessed part 32 Retaining recessed part 34 Click stop convex part 36 Spherical inner peripheral part 38 Elastic locking piece 50 Rod connection member 54 Rod engagement Part 56 Opening part 58 Leg part 62 Upper half hemispherical part 64 Locking convex part 66 Spherical outer peripheral part 102 Inner panel (fixed side member)
104 Rod member

Claims (5)

A rod engaging tool for releasably connecting the distal end of the rod member to the fixed side member,
A base member that includes a cylindrical protrusion that defines a receiving recess on the inside and is fixed to the fixed member;
A rod including a leg portion that is inserted into the receiving recess of the base member and connected to the base member, and a rod engaging portion that is integrally formed with the leg portion and engages and disengages with a tip portion of the rod member. A connecting member,
The rod connecting member includes a first insertion position in which the leg portion is inserted into the receiving recess by a first predetermined amount, and a second predetermined amount less than the first predetermined amount in which the leg portion is inserted into the receiving recess. Movable between the second insertion position and the base member at the first insertion position so that the base member is prevented from rotating at one rotation position. A rod engaging tool that is disengaged from the detent engagement with the base member at the second insertion position and is rotatable with respect to the base member.     The leg portion includes a spherical outer peripheral portion, and the receiving recess includes a spherical inner peripheral portion that makes spherical contact with the spherical outer peripheral portion of the leg portion at which the leg portion is in the second insertion position. The rod engaging tool according to 1.   One of the leg portion and the receiving recess is formed with a locking projection, and the other is formed with a locking recess into which the locking projection can be fitted. When the locking convex portion is fitted into the locking concave portion, the rod connecting member engages with the base member so as not to rotate, and the base member cannot be rotated at one rotational position. In the second insertion position, when the locking projection is disengaged from the engagement with the locking recess, the rod connecting member is disengaged from the detent engagement with the base member, and the base The rod engaging tool according to claim 1, wherein the rod engaging tool is rotatable with respect to the member.   The click stop convex part which the said leg part gets over when the said leg part moves between the said 1st insertion position and the said 2nd insertion position in the inner peripheral part of the said receiving recessed part of Claim 1 to 3 The rod engaging tool as described in any one of Claims. The cylindrical projection has an elastic locking piece on an outer peripheral portion, the base member is inserted into an attachment hole formed in the fixed side member, and the elastic locking piece is attached to the mounting member. By being engaged with the opening edge of the hole, it is fixed to the stationary member in a retaining state,
When the leg portion is positioned at the second insertion position, the leg portion abuts on the elastic locking piece, and the elastic locking piece is elastically deformed in a direction away from the engagement with the opening edge. The rod engaging tool according to any one of claims 1 to 4, which prevents this.

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