JP2018184991A - Fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fastener which makes reliable mounting possible even when making a notched part of a mounting hole small.SOLUTION: A fastener 10 includes: a head part 20 which is mounted to a member formed of a mounting hole having a shaft hole part and a notched part by rotation and is arranged at a front side of the mounting hole; a shaft part 30 extended from the head part 20; and an engagement part 40 which is expanded toward an outer diameter direction from a shaft part 30 outer circumference and is engaged with a back side periphery of the mounting hole extended in a circumferential direction. Therein, a guide part 50 which has a slant face 51 inclined in a shaft direction of the shaft part 30 so as to be separated from the head part 20 and guides the engagement part 40 to the back side periphery of the shaft hole part is provided on a circumferential end part of the engagement part 40, the slant face 51 is abutted to a margin part of the notch part back side in an inclined state of the shaft part and a circumferential direction angle of the engagement part 40 including the guide part 50 is set to be larger than a circumferential direction angle of the notch part.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a fastener that can be attached by being inserted into an attachment hole formed in a predetermined member and rotated.

  For example, a mounting hole is formed in a vehicle body panel or the like of an automobile, and a trim board or the like is attached to the vehicle body panel or the like via a fastener that is inserted into the mounting hole and fixed. Some of these fasteners can be attached to the attachment hole by being rotated after being inserted into the attachment hole.

  As this type of conventional one, the following Patent Document 1 has a deck plate and a leg shaft extending from the back surface of the deck plate, and the leg shaft is arranged between a pair of fixed sockets and them. A turn lock fastener having a pair of spring legs is described. In addition, the mounting hole provided in the first component member has a pair of insertion notches formed in a circular arc shape along the circumferential direction so as to be point-symmetric with respect to the center thereof. Has been. In addition, the circumferential direction angle of a pair of insertion notch part is formed larger than the circumferential direction angle of a pair of fixed socket of a turn lock fastener (refer FIG. 2).

  Then, after aligning the pair of fixed sockets with the pair of insertion notches, the leg shaft is pushed in, the leg shaft is inserted from the back side of the mounting hole (see FIG. 2), and then the leg shaft is moved in a predetermined direction. By rotating, the pair of fixing sockets are engaged with the back side peripheral edge of the mounting hole while bending the pair of spring legs, so that the turn lock fastener is fixed to the mounting hole.

Special table 2009-535584 gazette

  However, in the turn lock fastener of Patent Document 1, the pair of insertion notches formed in the mounting hole are formed so that the circumferential angle thereof is larger than the circumferential angle of the pair of fixed sockets. There was a possibility that the hole would be relatively large and the rigidity of the first component member would be reduced. Moreover, when the surface area of a 1st structural member is small and the space for forming an attachment hole is small, it becomes difficult to form an attachment hole.

  Therefore, an object of the present invention is to provide a fastener that can be securely attached even if the notch portion of the attachment hole is made small.

  In order to achieve the above-described object, the present invention is configured to rotate and mount a member having a mounting hole having a shaft hole and a notch formed by cutting out at least a part of the outer periphery thereof with respect to the mounting hole. A head portion disposed on the front side of the mounting hole, a shaft portion extending from the head portion, and extending from the outer periphery of the shaft portion toward the outer diameter direction. A locking portion that extends in the direction and engages with a peripheral edge on the back side of the mounting hole. A guide portion having a slope inclined with respect to the axial direction and guiding the locking portion to a rear peripheral edge of the shaft hole portion is provided, and the slope is provided on a central axis of the shaft hole portion of the mounting hole. On the other hand, it is configured to contact the rear side edge of the notch with the shaft center of the shaft inclined, Circumferential angle of the locking portion comprising a guide portion, characterized in that it is set larger than the circumferential angle of the notch.

  According to the fastener of the present invention, the circumferential end portion of the locking portion has an inclined surface that is inclined with respect to the axial direction of the shaft portion so as to be separated from the head portion, and the locking portion is on the back side of the shaft hole portion. Since the guide portion leading to the peripheral edge is provided and the shaft center of the shaft portion is inclined with respect to the central axis of the mounting hole, the guide portion is configured to contact the back side edge portion of the notch portion. Even if the mounting hole is made small, the shaft part is inclined, the inclined surface of the guide part is brought into contact with the back side edge of the notch part, and the shaft part is rotated, so that the entire locking part is behind the mounting hole. Since it can be locked to the periphery, the fastener can be securely attached to the mounting hole, and the circumferential angle of the locking part including the guide part is set larger than the circumferential angle of the notch part, The locking part can be securely locked to the back side of the mounting hole, and the mounting hole is made small to ensure sufficient rigidity of the member in which the mounting hole is formed. Rukoto can, also, even when the surface area of the member mounting holes are formed is small, it is possible to attach the fastener.

It is a disassembled perspective view which shows one Embodiment of the fastener which concerns on this invention. (A) is a perspective view of the fastener, and (b) is a perspective view when viewed from a direction different from (a). (A) is a front view of the fastener, and (b) is a cross-sectional view taken along line AA in (a). It is explanatory drawing at the time of seeing the same fastener from the BB arrow line of Drawing 3 (a), and (a) is an explanatory view in the state where an opening and closing member is not locked to an opening of a fixing member. (B) is explanatory drawing in the state which the opening-and-closing member locked with respect to the opening part of a fixing member. The state at the time of attaching this fastener to an attachment hole is shown, (a) is the explanation perspective view of the 1st state, (b) is the explanation perspective view of the 2nd state, (c) is the 3rd state. FIG. The state at the time of attaching the said fastener to an attachment hole is shown, (a) is the explanatory perspective view of the 4th state, (b) is the explanatory perspective view of the 5th state, (c) is the 6th state. FIG. It is the perspective view of the state which has shown the state which applied the fastener to the fixing member and the opening-and-closing member, and the opening-and-closing member has not locked to the opening part of the fixing member. It is a principal part expanded sectional perspective view of FIG. It is the perspective view of the state which showed the state which applied the fastener to the fixing member and the opening-and-closing member, and the opening-and-closing member locked to the opening part of the fixing member. FIG. 10 is an enlarged cross-sectional perspective view of a main part of FIG. 9. It is a perspective view at the time of seeing from the front side in the state which the opening-and-closing member locked to the opening part of the fixing member.

  Hereinafter, an embodiment of a fastener according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the fastener 10 in this embodiment is shown in FIGS. 5 and 6 with respect to the attachment hole 5 of the member in which the attachment hole 5 having the shaft hole portion 6 and the notch portion 7 is formed. As shown, it is rotated and attached. As shown in FIG. 5A, the mounting hole 5 has a substantially circular shaft hole portion 6 and a cutout portion 7 formed by cutting out at least a part of the outer periphery thereof. As shown in FIGS. 4 and 5, the notch portion 7 in this embodiment is formed by being cut out in an arc shape at a predetermined circumferential angle along the circumferential direction of the mounting hole 5. Yes.

  Further, the fastener 10 in this embodiment is used particularly when the opening / closing member 3 such as a lid is attached to the opening 2 formed in the fixing member 1 such as a cargo compartment wall portion of the vehicle so as to be opened and closed. However, as a fastener, for example, it may be used for attaching a mounting member such as a trim board, a cover, a garnish, an insulator or the like to a mounting member such as a vehicle body panel or a vehicle body frame. Etc. (so-called hole plugs) may be used without any particular limitation.

  In the fixing member 1 in this embodiment, an opening 2 having a substantially square hole shape is formed, and a stepped portion 2a is formed at the front peripheral edge thereof. On the other hand, the opening / closing member 3 has a substantially square plate shape adapted to the opening 2. A frame-shaped portion 3a having a substantially rectangular frame shape that fits the opening 2 is extended from the back side of the opening / closing member 3 and slightly inside the peripheral edge portion 3b. In a state where the frame-shaped portion 3 a is inserted into the opening 2, the peripheral edge 3 b of the opening / closing member 3 is engaged with the step 2 a of the opening 2. In addition, a substantially circular concave portion 4 having an opening on the surface side is formed at a predetermined position of the opening / closing member 3, and a mounting hole 5 is formed in the bottom portion 4a. In addition, the inner peripheral surface 4b of the recessed part 4 has comprised the taper shape gradually diameter-reduced toward the bottom part 4a side (refer FIG. 1). As described above, in the present embodiment, the opening / closing member 3 is a “member in which an attachment hole is formed” in the present invention. Moreover, the shape of the fixing member 1 and the opening / closing member 3 is not particularly limited.

  As shown in FIG. 3B, the circumferential angle θ1 of the notch 7 is such that the center axis C1 of the shaft hole 6 and the notch 7 when the attachment hole 5 is viewed from the center axis direction. An angle formed by a line segment L1 connecting the inner diameter side edge of one circumferential end of the shaft and a line segment L2 connecting the central axis C1 of the shaft hole 6 and the inner diameter side edge of the other circumferential end of the notch 7. Means.

  And this fastener 10 spreads toward the outer-diameter direction from the head 20 arranged on the front side of the mounting hole 5, the shaft 30 extended from the head 20 and the outer periphery of the shaft 30, And it has the latching | locking part 40 extended on the back side periphery of the attachment hole 5 extended in the circumferential direction.

  As shown in FIGS. 1, 2, and 5 (b), the head 20 in this embodiment has a circular frame shape that is open at the top so as to fit the recess 4 of the opening / closing member 3. On the inner periphery, there is provided a knob 21 having a ridge that extends across the center of the recess and connects portions facing each other in the circumferential direction of the inner periphery of the recess. The knob 10 can be rotated by holding the knob 21 with fingers or the like. In addition, the outer peripheral surface 22 of the head 20 has a tapered surface shape that gradually decreases in diameter toward the back surface side, corresponding to the inner peripheral surface 4 b (see FIG. 1) of the recess 4 of the opening / closing member 3. The head is not limited to the above shape, and may not have a knob portion, but may be any member as long as it is arranged at least on the front side of the mounting hole.

  The “front side of the mounting hole” in the present invention basically means one side in the thickness direction of the member (here, the opening / closing member 3) in which the mounting hole 5 is formed. Furthermore, when another member (for example, cushion member etc.) is mounted, it means the one side part of the thickness direction of this other member. Furthermore, the “back side of the mounting hole” in the present invention means the other side in the thickness direction of the member in which the mounting hole 5 is formed, and the side opposite to the side where the head 20 is arranged.

  On the other hand, the shaft portion 30 extends from the center of the back side of the head portion 20. As shown in FIG. 3 (b), the shaft portion 30 extends linearly so as to be parallel to each other through a predetermined gap, and a plurality of connecting ribs 31, 32, 33 connected to the bottom surface of the head 20. have. The extending direction of each connecting rib 31, 32, 33 is the same as the direction in which the knob portion 21 of the head 20 extends.

  Further, as shown in FIG. 3B, both side surfaces 35 and 36 of the shaft portion 30 closer to the front end side in the axial direction than the connecting portions 31, 32 and 33 are parallel to each other. Further, as shown in FIGS. 3 (b) and 6 (b), the peripheral surface 37 between both side surfaces 35, 36 has an arc shape, and the shaft portion 30 is formed in the shaft hole portion 6 of the mounting hole 5. When the is inserted, the shaft portion 30 is easily rotated. Further, as shown in FIG. 3A and FIG. 6B, the base end surface 38 has a tapered surface shape that is obliquely cut from the peripheral surface 37 of the shaft portion 30 toward the distal end side of the shaft portion. Is formed. The shaft portion 30 may be, for example, a hollow cylinder (cylindrical or prismatic) or a solid (columnar or prismatic), or extended from the head, If it is a shape which can provide a latching | locking part in outer periphery, it will not be limited to the said shape.

  Further, as shown in FIG. 2 and FIG. 3A, the locking portion 40 in this embodiment is the outer periphery of the shaft portion 30 and is substantially the same as the position of the distal ends in the axial direction of the plurality of connecting portions 31, 32, 33. A thin flange shape is formed so as to extend from the matching portion toward the outer diameter direction of the shaft portion 30 and along the circumferential direction of the shaft portion 30. More specifically, as shown in FIG. 3B, the locking portion 40 of this embodiment extends from one side surface 35 of the shaft portion 30 along the circumferential direction, and has a peripheral surface 37 and the other side surface 36. And extending to the distal end of the connecting portion 32 in the extending direction so as to form a substantially arc-shaped thin flange. In addition, as a latching part, as long as it is not a thin flange shape as mentioned above, what is necessary is just a shape which can be latched to the back side periphery of an attachment hole.

  As shown in FIG. 2, the circumferential end portion of the locking portion 40 has a slope 51 inclined with respect to the axial direction of the shaft portion 30 so as to be away from the head portion 20. The guide part 50 which guides to the back side periphery of the shaft hole part 6 is provided.

  In this embodiment, as shown in FIG. 2 and FIG. 3B, the locking portion 40 protrudes from the outer periphery of the shaft portion 30 to one end portion in the circumferential direction (the end portion on the one side surface 35 side of the shaft portion 30). As described above, a guide unit 50 is provided. Further, as shown in FIG. 3A, the surface of the guide portion 50 facing the head portion 20 forms a slope 51 inclined with respect to the axial direction of the shaft portion 30 so as to be separated from the head portion 20. Yes.

  And as shown in FIG.5 (c), the said slope 51 is a notch part in the state which inclined the axial center C2 of the axial part 30 with respect to the central axis C1 of the axial hole part 6 of the attachment hole 5. As shown in FIG. It is comprised so that it may contact | abut to the back side edge part.

  By providing the guide part 50 as described above, the fastener 10 can be rotated and attached to the attachment hole 5 by the following process. First, from the front side of the mounting hole 5, the guide portion 50 is inserted obliquely into the notch portion 7 of the mounting hole 5 (see FIG. 5A), and the shaft portion with respect to the central axis C <b> 1 of the shaft hole portion 6. The axis C2 of 30 is inclined, and the inclined surface 51 of the guide portion 50 is brought closer to one end portion in the circumferential direction of the notch portion 7 (see FIG. 5B). Further, as shown in FIG. 5 (c), the inclined surface 51 of the guide portion 50 is formed on the notch portion 7 with the axis C 2 of the shaft portion 30 inclined with respect to the central axis C 1 of the shaft hole portion 6. The shaft portion 30 is rotated so that the locking portion 40 is in the direction of locking to the back side of the mounting hole 5 while being in contact with the inner edge portion on the back side of one end portion in the circumferential direction and being guided by the inclined surface 51. Accordingly, the locking portion 40 is gradually guided to the back side of the mounting hole 5 via the guide portion 50 (see FIG. 6A), and the surface side of the locking portion 40 (the surface facing the head 20). Means the same, and the same applies to the rear edge of the mounting hole 5 (see FIG. 6B). When the shaft 30 is further rotated by a predetermined angle or more, the entire surface of the locking portion 40 is The fastener 10 can be attached to the attachment hole 5 by being locked to the peripheral edge on the back side of the attachment hole 5 (see FIG. 6C).

  Moreover, as shown to Fig.3 (a), 44-46 degrees is preferable and, as for inclination-angle (theta) 3 with respect to the axial direction of the axial part 30 of this slope 51, it is preferable that it is 45 degrees. In addition, the slope 51 of this embodiment is formed at substantially the same inclination angle as the base end face 38 of the shaft portion 30.

  Further, as shown in FIG. 3A, a surface 53 of the guide portion 50 opposite to the inclined surface 51 (hereinafter, also simply referred to as “opposite surface 53”) is inclined in the same direction as the inclined direction of the inclined surface 51. In addition, the guide portion 50 has a plate shape. As described above, as the guide portion, when the shaft portion 30 is rotated in a predetermined direction by being inserted from the notch portion 7 of the attachment hole 5, the locking portion 40 is guided to the rear side periphery of the attachment hole 5. And if it is the structure which can latch the whole surface of the latching | locking part 40 to the back side periphery of the attachment hole 5, it will not specifically limit.

  Further, as shown in FIG. 2 and FIG. 3B, a thin wall portion 55 that is thinner than the other portions of the locking portion 40 is provided on the other circumferential end side of the locking portion 40. Yes. The thin portion 55 extends in a plate shape on the other end side in the circumferential direction of the locking portion 40 so as to be in the same direction as the extending direction of the plurality of connecting ribs 31, 32, 33 of the shaft portion 30. ing. In addition, a circular protrusion-like convex portion 57 protrudes from a portion of the thin portion 55 facing the head portion 20 and facing the guide portion 50 in the circumferential direction (FIGS. 2 and FIG. 2). 3 (b)).

  As shown in FIG. 9, the projecting portion 57 has an extension portion 60, which will be described later, engaged with the back side end of the opening 2 of the fixing member 1 and the back side end of the frame-like portion 3 a of the opening / closing member 3. In this state, as shown in FIG. 4B and FIG. 10, the cutout portion 7 of the mounting hole 5 is inserted. When the fastener 10 is rotated from this state and the engagement between the extended portion 60 and the back side end of the opening 2 and the back side end of the frame-like portion 3a is released as shown in FIG. The convex part 57 comes out from the notch part 7, moves while bending the thin part 55, and is arranged at the periphery of the mounting hole 5 as shown in FIG. 4 (a) or FIG. Yes.

  And in this fastener 10, as shown in FIG.3 (b), circumferential direction angle (theta) 2 of the latching | locking part 40 containing the guide part 50 is larger than circumferential direction angle (theta) 1 of the notch part 7 of the attachment hole 5. As shown in FIG. It is set large. Here, the circumferential angle θ <b> 2 of the locking portion 40 is such that when the shaft portion 30 is viewed from the axial direction as shown in FIG. 3B, the axial center C <b> 2 of the shaft portion 30 and the locking portion 40. A line segment L3 connecting the outer-diameter side edge of one end in the circumferential direction (here, the location where the extended line along the outer periphery of the guide 50 and the line along the tip surface of the guide 50 intersect); The axial center C2 of the shaft part 30 and the outer diameter side edge of the other circumferential end of the locking part 40 (here, the extension line along the outer periphery of the locking part 40 and the circumferential direction of the locking part 40) It means an angle formed by a line segment L4 connecting a line segment passing through the outer diameter side edge of the other end portion. Further, the circumferential direction angle θ2 of the locking part 40 is preferably 180 ° or more, and more preferably 270 ° or more.

  As shown in FIG. 2 and FIG. 3, in this fastener 10, the shaft portion 30 extends in the outer diameter direction from the outer periphery of the head portion 20 on the tip side of the position where the locking portion 40 is provided. As shown in FIG. 3B, the extending portion 60 is provided in a direction in which the inclined surface 51 of the guide portion 50 faces when viewed from the axial direction of the shaft portion 30 (see FIG. 3B). It is provided in the same direction as the arrow F). In this embodiment, the extending portion 60 is the tip portion in the axial direction of the shaft portion 30, and is perpendicular to the axial direction of the shaft portion 30 from a location opposite to the circumferential surface 37 in the circumferential direction. Further, it extends longer than the outer periphery of the head 20 (see FIG. 3A).

  Further, as shown in FIG. 2, the extending portion 60 includes a pair of ridge portions 61, 61 extending in the same direction as the extending direction of the connecting ribs 31, 32, 33 of the shaft portion 30. The connecting portion 63 is connected to each other. Furthermore, the outer surface 65 of the extending portion 60 on the side opposite to the facing surface of the head portion 20 has a mountain shape in which the center in the width direction is the highest and the height gradually decreases toward the side edge in the width direction. ing. The extending portion is not limited to the above shape, and may be a simple columnar shape, a prismatic shape, or the like, and the angle with respect to the shaft portion 30 is not perpendicular to the axial direction of the shaft portion 30. For example, you may extend so that it may become the same inclination direction as the slope 51 of the guide part 50, and it does not specifically limit. Further, as shown in FIG. 3B, the extension portion 60 is not in the same direction as the direction (arrow F) in which the inclined surface 51 of the guide portion 50 faces when viewed from the axial direction of the shaft portion 30. It may extend so as to be perpendicular to the F direction, and the extending direction of the extending part 60 when viewed from the axial direction of the shaft part 30 is not particularly limited.

  Next, the usage method and effect of the fastener 10 which consists of the said structure are demonstrated.

  First, as shown in FIG. 5 (a), the knob portion 21 of the head 20 is gripped, the extending portion 60 is inserted obliquely from the front side of the mounting hole 5, and the guide portion 50 of the locking portion 40 is moved. Then, the guide part 50 is inserted into the notch part 7 at an angle while being aligned with the notch part 7 of the mounting hole 5. After that, as shown in FIG. 5B, the axis C <b> 2 of the shaft portion 30 is inclined with respect to the central axis C <b> 1 of the shaft hole portion 6, and the inclined surface 51 of the guide portion 50 is moved around the notch portion 7. Move closer to one end in the direction. Further, as shown in FIG. 5 (c), the inclined surface 51 of the guide portion 50 is formed on the notch portion 7 with the axis C 2 of the shaft portion 30 inclined with respect to the central axis C 1 of the shaft hole portion 6. The shaft portion 30 is rotated so that the locking portion 40 is locked to the back side of the mounting hole 5 while being brought into contact with the inner edge portion on the back side at one end portion in the circumferential direction and guided by the inclined surface 51.

  Then, as shown in FIG. 6A, the locking portion 40 is gradually guided to the back side of the mounting hole 5 via the guide portion 50, and when the shaft portion 30 is further rotated, FIG. ), The front surface side of the locking portion 40 is locked to the rear edge of the mounting hole 5. When the shaft portion 30 is further rotated by a predetermined angle or more, as shown in FIG. 6C, the entire surface of the locking portion 40 (that is, the entire surface of the locking portion 40 facing the head 20) is attached. The holes 5 are engaged with the back side periphery.

  And this fastener 10 has the slope 51 inclined with respect to the axial direction of the axial part 30 in the circumferential direction one end part of the latching | locking part 40, and the latching | locking part 40 is made into the back side periphery of the axial hole part 6. The guiding portion 50 is provided, and the inclined surface 51 of the guiding portion 50 is cut in a state where the axis C2 of the shaft portion 30 is inclined with respect to the central axis C1 of the shaft hole portion 6 of the mounting hole 5. Since it is configured to contact the back side edge of the notch 7 (see FIG. 5C), the guide 50 is inserted diagonally into the notch 7 from the front side of the mounting hole 5 as described above. Then, by rotating the shaft portion 30 (see FIGS. 5A to 5C) so that the locking portion 40 is in the direction of locking to the back side of the mounting hole 5, via the guide portion 50, The locking part 40 is gradually guided to the back side of the mounting hole and locked (see FIGS. 6A and 6B), and finally the entire surface of the locking part 40 is For locking the back side peripheral edge of the mounting hole 5, even with a small mounting hole 5, it is possible to attach the fastener 10 in the mounting hole 5 to ensure (see Figure 6 (c)).

  At this time, in the fastener 10, as shown in FIG. 3B, the circumferential angle θ <b> 2 of the locking portion 40 including the guide portion 50 is larger than the circumferential angle θ <b> 1 of the notch portion 7 of the mounting hole 5. Is set to be large, so that the entire surface of the locking portion 40 can be reliably locked to the back side periphery of the mounting hole 5, and the mounting hole 5 is made small so that the mounting hole 5 is formed (here, opening and closing). The rigidity of the member 3) can be sufficiently secured, and the fastener 10 can be securely attached even when the opening / closing member 3 in which the attachment holes 5 are formed has a small surface area.

  Further, as shown in FIG. 3A, in this embodiment, the opposite surface 53 of the guide portion 50 opposite to the inclined surface 51 is inclined in the same direction as the inclined direction of the inclined surface 51 and is guided. The part 50 has a plate shape. Therefore, as shown in FIG. 5A, when the guide portion 50 is inserted into the cutout portion 7 of the attachment hole 5, the opposite surface 53 of the guide portion 50 is unlikely to interfere with the surface side of the attachment hole 5. Thus, the guide portion 50 can be easily inserted into the cutout portion 7, and the cutout portion 7 of the mounting hole 5 can be made smaller.

  Further, as shown in FIG. 3B, in this embodiment, when the circumferential angle θ2 of the locking portion 40 is 180 ° or more, the locking portion 40 with respect to the rear side periphery of the mounting hole 5 is used. The fastener 10 can be stably attached to the attachment hole 5 by rotating the shaft portion 30 via the guide portion 50, so that the engagement portion 40 is placed on the back side of the attachment hole 5. When engaging with the peripheral edge, the circumferential end of the engaging portion 40 can be prevented from being caught by the edge of the notch portion 7, and the engaging portion 40 can be easily engaged with the rear peripheral edge of the mounting hole 5. can do.

  Moreover, in this embodiment, the extension part 60 extended in an outer diameter direction rather than the outer periphery of the head 20 is provided in the front end side rather than the position in which the latch part 40 was provided in the axial part 30. Further, as shown in FIG. 3B, the extended portion 60 is a direction in which the inclined surface 51 of the guide portion 50 faces when viewed from the axial direction of the shaft portion 30 (see arrow F in FIG. 3B). ) In the same direction. As a result, as shown in FIG. 5A, when the guide portion 50 is inserted into the notch portion 7 of the attachment hole 5, the extension portion 60 can also be inserted into the back side of the attachment hole 5 through the notch portion 7. Therefore, even if the extension part 60 is large, the extension part 60 can be easily inserted into the back side of the attachment hole. Further, as shown in FIG. 5C, in the state in which the inclined surface 51 of the guide portion 50 is in contact with the rear side edge portion of the notch portion 7, the tip of the extension portion 60 is a member provided with the mounting hole 5 ( Here, since it does not interfere with the back surface of the opening / closing member 3), the shaft portion 30 can be easily rotated.

  In the case of this embodiment, the fastener 10 having the above configuration is used when an opening / closing member 3 such as a lid is detachably attached to an opening 2 formed in a fixing member 1 such as a cargo compartment wall of a vehicle. Can do.

  That is, the frame-like portion of the opening / closing member 3 in a state where the extension portion 60 of the fastener 10 is not engaged with the back-side end portion of the opening 2 of the fixing member 1 and the back-side end portion of the frame-like portion 3a of the opening / closing member 3. When 3a is inserted into the opening 2, the peripheral edge 3b of the opening / closing member 3 is engaged with the step 2a of the opening 2, and the opening / closing member 3 is fitted into the opening 2 (see FIG. 7). In this state, as shown in FIG. 4A and FIG. 8, while the thin portion 55 of the locking portion 40 is bent, the convex portion 57 provided on the thin portion 55 is disposed on the periphery of the mounting hole 5. ing.

  Then, when the knob portion 21 of the head portion 20 is gripped and the shaft portion 30 is rotated so that the extending portion 60 is engaged with the rear side end portion or the like of the opening portion 2 of the fixing member 1, With a feeling, the convex part 57 provided in the thin part 55 of the locking part 40 enters the notch part 7 of the mounting hole 5 (see FIG. 4B and FIG. 10), and in FIG. 9 and FIG. As shown, the extending portion 60 engages with the back side end portion of the opening portion 2 of the fixing member 1 and the back side end portion of the frame-like portion 3 a of the opening / closing member 3. The opening / closing member 3 can be locked in a closed state (see FIG. 11).

  On the other hand, in the above state, the notched portion 7 is bent while the thin portion 55 is bent by rotating the shaft portion 30 in a direction in which the extending portion 60 does not engage with the rear side end portion or the like of the opening 2 of the fixing member 1. The projecting portion 57 comes out from the inside, and the locked state of the opening / closing member 3 with respect to the opening 2 is released, so that the opening / closing member 3 can be opened from the opening 2.

  As described above, when the shaft portion 30 is rotated so that the extending portion 60 engages with the back side end portion of the opening 2 of the fixing member 1 and the back side end portion of the frame-like portion 3a of the opening / closing member 3, the convex portion 60 protrudes. Since the portion 57 enters the notch portion 7 of the attachment hole 5 with a click feeling, it can be reliably grasped that the opening / closing member 3 is locked with respect to the opening portion 2.

  It should be noted that the present invention is not limited to the above-described embodiment, and various modified embodiments are possible within the scope of the present invention, and such an embodiment is also included in the scope of the present invention. .

10 Clip 3 Opening / Closing Member (Member with Mounting Hole)
5 Mounting hole 6 Shaft hole portion 7 Notch portion 10 Fastener 20 Head portion 30 Shaft portion 40 Locking portion 50 Guide portion 51 Slope 53 Opposite surface (surface on the opposite side of the guide portion from the surface facing the head portion)
55 Thin-walled part 60 Extension part

Claims (4)

A fastener that is attached to a shaft hole and a member formed with a notch formed by notching at least a part of the outer periphery of the shaft hole, and is rotated with respect to the attachment hole,
A head disposed on the front side of the mounting hole;
A shaft extending from the head;
And having a locking portion that extends from the outer periphery of the shaft portion toward the outer diameter direction and extends in the circumferential direction, and is locked to the rear peripheral edge of the mounting hole.
A guide having a slope inclined with respect to the axial direction of the shaft portion away from the head at the circumferential end of the locking portion, and guiding the locking portion to the rear peripheral edge of the shaft hole portion Part is provided,
The inclined surface is configured to contact the back side edge of the notch with the shaft center of the shaft hole inclined with respect to the central axis of the shaft hole of the mounting hole.
The fastener characterized by the circumferential angle of the said latching | locking part containing the said guide part being set larger than the circumferential angle of the said notch part.   The surface of the guide portion facing the head portion forms the inclined surface, and the opposite surface is inclined in the same direction as the inclined direction of the inclined surface, and the guide portion has a plate shape. The fastener according to claim 1.   The fastener according to claim 1 or 2, wherein a circumferential angle of the locking portion is 180 ° or more. An extension portion extending in the outer diameter direction from the outer periphery of the head is provided on the distal end side of the shaft portion from the position where the locking portion is provided,
The said extension part is a fastening as described in any one of Claims 1-3 provided toward the same direction as the direction where the slope of the said guide part faced, when it sees from the axial direction of the said axial part. Ingredients.