JP2016154609A - Mat fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mat fastener that can fasten one or two mats on a carpet using a common member.SOLUTION: A mat fastener 10 includes a body part 20, grommets 40A, 40B, and a locking member 70. The locking member 70 has a rotatable knob 71 and a shaft part 73. The body part 20 has an insertion hole 26 of the shaft part 73. The grommets 40A, 40B have a mounting hole 55. The shaft part 73 has: a first engagement part 75 where the shaft part 73 is inserted to the mounting hole 55 of the grommet 40A, and the rotatable knob 71 is engaged with the body part 20 while being engaged with the grommet 40A; and a second engagement part 77 where the shaft part 73 is inserted to the mounting hole 55 of the grommets 40A, 40B, and the rotatable knob 71 is engaged with the body part 20 while being engaged with the grommet 40B of an outside mat 7.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a mat fastener for fixing a mat on a carpet.

  A carpet is laid on the floor of the vehicle, and a mat is further attached to a portion on which a driver's or passenger's foot gets. The mat is fixed so as not to move carelessly with respect to the carpet. For example, when mud or sand adheres to the mat, the mat can be removed from the carpet and cleaned.

  As a means for detachably attaching a mat to a carpet, the following Patent Document 1 includes a first fixing member fixed to a carpet, a second fixing member fixed to the mat, and a second fixing member. An operation attaching member for attaching to the first fixing member, the first fixing member having a support portion for supporting the operation attaching member and an engaging portion for holding the second fixing member, and the second fixing member. The member includes a locked portion that is locked to the operation mounting member, and an engaged portion that is engaged with the engaging portion in a state where the second fixing member is mounted on the first fixing member. A tool is disclosed.

  On the other hand, when the mat laid on the carpet is, for example, a genuine product of a car manufacturer, the shape is often fitted to the floor shape of the vehicle. In order to suppress such contamination and damage of the genuine mat, there is a demand for placing another mat (genuine mat or general-purpose mat) such as a rubber mat on the genuine mat without shifting the position. It was.

  In order to meet such a demand, the following Patent Document 2 discloses a second mat (another mat) placed on the upper surface of a first mat (genuine mat) fixed to the floor of a passenger car. A mat fixing tool for fixing the pad is described. This mat fixing tool is composed of a plate-like base portion inserted below the first mat, two gripping portions that can be opened and closed, a clip portion that holds the second mat in between, and an opening stopper for the clip portion. And a substantially U-shaped fastener. Further, at the end portion of the base portion, a pair of engaging portions protrude from the lower portion of the clip portion and abut against the peripheral edge portion of the first mat and project upward. The second mat is detachably attached to the engaging portion of the base portion by engaging the pair of engaging legs that have been taken out.

International Publication WO2013 / 099088 Pamphlet Utility Model Registration No. 3148696

  In the case of the mat fastener disclosed in Patent Document 1, one mat is mounted on the carpet, and the two mats cannot be placed on the carpet without misalignment.

  On the other hand, according to the mat fixing tool of Patent Document 2, another mat can be mounted on the genuine mat laid on the carpet. However, if another mat is not mounted on the genuine mat laid on the carpet, there is a problem that the clip portion and the fastener for the second mat do not function and are wasted.

  Further, in the mat fixing tool of Patent Document 2, the fixation between the floor surface in the vehicle and the genuine mat and the fixation between the genuine mat and another mat are respectively fixed by different fixing structures. The work of attaching and removing the genuine mat and another mat becomes complicated.

  Accordingly, an object of the present invention is to provide a mat fastener capable of fixing one or two mats on a carpet using a common member without being displaced.

  In order to achieve the above object, the present invention provides a mat fastener for fixing a mat placed on a carpet, a main body portion attached to the carpet, a grommet attached to the mat, and the main body portion. And a locking member for fixing the grommet, wherein the locking member has a rotation knob and a shaft portion extending from the rotation knob, and the main body portion includes the shaft of the locking member. The grommet has a mounting hole through which the shaft portion of the locking member is inserted, and a coaxial portion is provided on the carpet on the shaft portion of the locking member. A first engagement portion that is inserted into an attachment hole of the grommet attached to one mat placed on the mat, and engages the main body portion with the rotary knob engaged with the grommet; The first engagement in the axial direction of the shaft portion The coaxial part is inserted through the mounting holes of the grommets attached to the two mats placed on the carpet, and the rotary knob engages the grommets of the outer mat. And a second engaging portion that engages with the main body portion.

  In the mat fastener according to the present invention, a coaxial portion is inserted into an attachment hole of the grommet attached to one mat placed on the carpet, in the shaft portion of the locking member, When the rotary knob is rotated by a predetermined angle or more and the engagement of the rotary knob with the grommet is released, the engagement with the main body can be released by pulling the locking member with a predetermined force or more. It is preferable that a weak engagement portion that engages with the main body portion is provided.

  In the mat fastener of the present invention, an overhanging portion that is elastically pressed when the shaft portion is inserted into the insertion hole is provided around the insertion hole of the main body portion, and the grommet The mounting hole has a shape that allows the rotation knob of the locking member to be inserted at a predetermined angle and cannot be inserted at a predetermined angle different from the rotation knob. In the state where the rotary knob is inserted into the mounting holes of the grommets mounted on the two mats placed on the mat, and the rotation knob is set at an angle that allows insertion into the mounting holes of the grommets of the outer mat. It is preferable that a movement restricting portion that is fitted to the overhang portion and restricts movement of the shaft portion in the axial direction is provided.

  In the mat fastener of the present invention, when two mats are placed on the carpet, the abutting surfaces of the grommet attached to the inner mat and the grommet attached to the outer mat are mutually connected. It is preferable that a concave and convex fitting portion is provided.

  According to the present invention, it is possible to fix with one mat placed on the carpet, and to fix with two mats placed. In addition, when mounting one mat or two mats, it is possible to use a common locking member, so the number of parts can be reduced and the mat can be attached. And the removal workability can be improved.

It is a disassembled perspective view which shows one Embodiment of the fastener for mats of this invention. It is a perspective view of the main-body part which comprises the fastener for the mats. It is a disassembled perspective view of the grommet which comprises the fastener for the mats. The latch member which comprises the fastener for mat | matte is shown, (a) is the perspective view, (b) is a perspective view at the time of seeing from the direction different from (a). It is a usage method when fixing one mat to a carpet using the mat fastener, and is a plan view showing the first step. (A) is sectional drawing of a 1st process, (b) is sectional drawing in the orthogonal direction of (a). It is a top view which shows the 2nd process of the usage method of the fastener for mats. (A) is sectional drawing of a 2nd process, (b) is sectional drawing in the orthogonal direction of (a). It is a usage method at the time of fixing two mats to a carpet using the fastener for mats, and is a top view showing the 1st process. (A) is sectional drawing of a 1st process, (b) is sectional drawing in the orthogonal direction of (a). It is a top view which shows the 2nd process of the usage method of the fastener for mats. (A) is sectional drawing of a 2nd process, (b) is sectional drawing in the orthogonal direction of (a).

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

  As shown in FIG. 1, this mat fastener 10 (hereinafter simply referred to as “fastener 10”) is composed of one or two mats (first mat 5 and second mat) placed on a carpet 1. 7) is used for fixing.

  In this embodiment, when two mats are laid, the first mat 5 is placed on the carpet 1 and the second mat 7 is placed on the first mat 5. The first mat 5 is an “inner mat” in the present invention, and the second mat 7 is an “outer mat” in the present invention.

  Further, as the first mat 5, for example, a genuine car maker mat formed of woven fabric or non-woven fabric can be used, and as the second mat 7, a genuine car maker made of rubber, vinyl chloride or the like can be used. A rubber mat or the like can be used. For example, one of the first mat and the second mat, or both the first mat and the second mat may be general-purpose mats. There is no limitation.

  The fastener 10 in this embodiment includes a main body 20 attached to the carpet 1, a grommet 40A attached to the first mat 5, a grommet 40B attached to the second mat 7, a main body 20 and the grommet 40A, The locking member 70 which fixes 40B is provided.

  In addition, rectangular fixing holes 2 and 3 are formed in the carpet 1 at a predetermined interval, and the first mat 5 and the second mat 7 have round hole-shaped grommet mounting holes 5a and 5a. 7a is formed.

  First, the main body 20 will be described.

  As shown in FIG. 2, the main body portion 20 of this embodiment has a base portion 21 having a substantially rectangular shape that is disposed in contact with the surface of the carpet 1. As shown in FIGS. 6A and 6B, a through hole 22 is formed at a predetermined location of the base portion 21 along the thickness direction of the base portion 21.

  A grommet insertion portion 23 having a frame shape is inserted into the grommet 40 </ b> A or the grommet 40 </ b> B from the periphery of the through hole 22 on the surface side of the base portion 21 (surface opposite to the carpet 1). It is erected. Further, as shown in FIG. 2, the outer surfaces of the grommet insertion portion 23 facing the longitudinal direction of the base portion 21 are formed in parallel with each other, and the detent ribs 24 and 24 are respectively formed from these outer surfaces. Projected. These detent ribs 24 and 24 are fitted into detent portions 59 and 59 (see FIG. 5) provided in the grommet 40 </ b> A or the grommet 40 </ b> B, and the grommet 40 </ b> A is restricted from rotating with respect to the main body portion 20.

  Further, from the surface of the grommet insertion portion 23, a mounting hole insertion portion 25 is formed so that the outer surfaces are parallel to each other. The attachment hole insertion portion 25 is a portion that is inserted into the attachment hole 55 (see FIGS. 5 and 6A) of the grommet 40A or the grommet 40B.

  An insertion hole 26 that communicates with the through hole 22 of the main body 20 is formed in the center of the grommet insertion part 23 and the attachment hole insertion part 25 (see FIGS. 2 and 6). The shaft portion 73 (see FIG. 4) of the locking member 70 is inserted into the insertion hole 26.

  As shown in FIG. 6A, a pair of elastically deformable pairs is provided at the periphery of the back side of the insertion hole 26 (inward side of the main body 20) and along the longitudinal direction of the main body 20. The overhang portions 28, 28 extend obliquely inward toward the back surface side of the main body portion 20. The pair of overhang portions 28 and 28 are adapted to be elastically pressed when the shaft portion 73 of the locking member 70 is inserted into the insertion hole 26. In addition, although the overhang | projection part 28 of this embodiment is extended from the back side periphery of the insertion hole 26, it should just be provided in the circumference | surroundings of the insertion hole 26 of the main-body part 20. FIG.

  Moreover, as shown in FIG.2 and FIG.6 (a), it is the back surface side (carpet side) of the main-body part 20, Comprising: With respect to the main-body part 20 via the thin hinge 30 in the longitudinal direction one end part A long plate-shaped holding portion 31 that can be opened and closed is connected. An engaging claw 32 is erected on the front end side of the sandwiching portion 31. The engaging claw 32 engages with an engaging claw 33 protruding from the back surface side of the main body 20, so that the clamping portion 31 is closed with respect to the main body 20.

  Next, the grommets 40A and 40B will be described. Since these grommets 40A and 40B have a common structure except for a part, they will be described together.

  As shown in FIGS. 1 and 3, each of the grommets 40 </ b> A, 40 </ b> B is disposed on the front surface side of each mat 5, 7 and on the back surface side of each mat 5, 7. And a lid body 60 that sandwiches the first mat 5 or the second mat 7.

  The base body 50 is inserted into the grommet mounting holes 5 a and 7 a of the mats 5 and 7, and has a substantially cylindrical tube portion 51 that receives the grommet insertion portion 23 of the main body portion 20, and an outer periphery of one end portion of the tube portion 51. And a flange 52 that engages with front peripheral edges of the grommet mounting holes 5a and 7a. In addition, a plurality of engaging portions 53 including a plurality of convex portions projecting stepwise along the axial direction are provided on the outer periphery of the cylindrical portion 51 at predetermined intervals in the circumferential direction.

  As shown in FIG. 3 and FIG. 5, a pair of wall portions 56, 56 project at predetermined positions on the inner periphery of the base body 50, and the opposing inner sides of each wall portion 56, 56 are formed in parallel to each other. (See FIG. 5).

  Between the pair of wall portions 56 and 56, a long hole shape is formed and engaged so as to fit the mounting hole insertion portion 25 of the main body portion 20 and the rotation knob 71 (see FIG. 4) of the locking member 70. A mounting hole 55 through which the shaft portion 73 of the stop member 70 is inserted is provided.

  Therefore, when the longitudinal direction of the rotary knob 71 and the longitudinal direction of the attachment hole 55 coincide with each other, the rotary knob 71 can be inserted through the attachment hole 55 (see FIGS. 5 and 9). On the other hand, when the rotary knob 71 rotates so that the longitudinal direction of the rotary knob 71 intersects the longitudinal direction of the mounting hole 55, the rotary knob 71 is not allowed to pass through the mounting hole 55, and The rotary knob 71 is adapted to engage with the front side peripheral portion of the mounting hole 55 (the hole edge portion of the wall portions 56, 56) (see FIGS. 7 and 11).

  In this embodiment, the shaft portion 73 of the locking member 70 is inserted into the insertion hole 26 of the main body portion 20, and the locking member 70 is rotatably attached to the main body portion 20 in advance. The rotation knob 71 of the attached locking member 70 is inserted into the attachment hole 55 of the grommet 40A of the first mat 5 and the attachment hole 55 of the grommet 40B of the second mat 7 to rotate the rotation knob 71 by a predetermined angle. By doing so, the rotary knob 71 is engaged with the mounting holes 55 of the grommets 40A and 40B (see FIGS. 8 and 10). However, after mounting the first mat 5 and the second mat 7 on the carpet 1 without attaching the locking member 70 to the main body 20 in advance, the mounting holes 55 of the grommets 40A and 40B and the insertion of the main body 20 are performed. The rotation knob 71 may be engaged with the mounting holes 55 of the grommets 40A and 40B by inserting the shaft portion 73 of the locking member 70 into the hole 26 and rotating the rotation knob 71 by a predetermined angle.

  The mounting hole 55 is not limited to the long hole shape as described above, but has a shape that allows the rotation knob 71 of the locking member 70 to be inserted at a predetermined angle and cannot be inserted at a different angle. I just need it. Further, as described above, with the first mat 5 and the second mat 7 placed on the carpet 1, the shaft portion 73 of the locking member 70 is inserted through the mounting holes 55 of the grommets 40 </ b> A and 40 </ b> B and the body portion 20. When inserting into the hole 26, the rotation hole 71 of the locking member 70 cannot be inserted as the mounting hole 55, and a first engagement portion 75 and a second engagement portion 77, which will be described later, of the locking member 70 will be described. (See FIG. 4) may be shaped so that it can be inserted at a predetermined angle and cannot be inserted at a different angle.

  Further, as shown in FIG. 3, the surface side of each wall portion 56 is formed with tapered surfaces 56 a and 56 a at both end portions thereof, and has a shape in which the central portion is raised and is formed in the mounting hole 55 of the base body 50. After the rotary knob 71 is inserted, the rotary knob 71 is easily rotated.

  On the other hand, as shown in FIG. 3, the lid body 60 attached to the base body 50 is externally mounted on the cylindrical portion 51 of the base body 50 and is frame-shaped inserted into the grommet mounting holes 5 a and 7 a of the mats 5 and 7. And a flange portion 62 that spreads out in an umbrella shape from the outer periphery of the base end of the cylindrical portion 61 and engages with the rear peripheral edge of the grommet mounting holes 5a and 7a of the mats 5 and 7. Further, on the inner periphery of the cylindrical portion 61, a plurality of engaging claws 63 that are engaged in a stepwise manner with a stepped engaging portion 53 provided on the base body 50 are projected at equal intervals in the circumferential direction. It is installed.

  In this embodiment, when the two mats 5 and 7 are placed on the carpet 1, the grommet 40A attached to the first mat 5 on the inner side (side closer to the carpet 1) and the outer side (carpet). On the contact surface with the grommet 40 </ b> B attached to the second mat 5 on the side away from 1, there is provided a portion for engaging with each other.

  Specifically, as shown in FIG. 3, a circular shape in which a grommet 40 </ b> A attached to the first mat 5 is recessed at a predetermined depth with respect to the surface of the flange portion 52 at one end portion of the cylindrical portion 51 of the base body 50. The recess 57 is formed. On the other hand, as shown in FIG. 10A, a circular shape that fits into the recess 57 of the grommet 40B from the other end portion of the cylindrical portion 51 of the base body 50 of the grommet 40B attached to the second mat 7. A convex portion 58 is projected. Therefore, as shown in FIG. 10 (a), the grommet 40A is placed on the bottom, the grommet 40B is disposed thereon, and the convex portion 58 is fitted into the concave portion 57 of the grommet 40A. The grommet 40B can be placed on the upper side without any displacement.

  The concave portion 57 and the convex portion 58 constitute the “portion where the concave and convex portions are fitted to each other” in the present invention.

  In addition, for example, a convex portion may be provided at the upper end portion of the grommet 40A on the first mat 5 side, and a concave portion may be provided on the lower end portion of the grommet 40B on the second mat 7 side. There is no particular limitation on the shape of the “concave portion”.

  Next, the locking member 70 will be described.

  As shown in FIGS. 4A and 4B, the locking member 70 includes a rotation knob 71 that serves as a grip portion during a rotation operation, and a shaft portion 73 that extends from the rotation knob 71. The shaft member 73 is inserted into the insertion hole 26 of the main body 20 so that the locking member 70 is rotatably supported with respect to the main body 20. Further, as described above, with the first mat 5 and the second mat 7 placed on the carpet 1, the locking member 70 is inserted into the mounting hole 55 of the grommets 40 </ b> A and 40 </ b> B and the insertion hole 26 of the main body 20. By inserting the shaft portion 73, the locking member 70 may be rotationally supported by the main body portion 20.

  In this embodiment, the rotary knob 71 has a long shape extending in one direction so as to fit the mounting hole 55 having a long hole shape of the base body 50 of the grommets 40A, 40B. It is formed larger than the outer periphery.

  A circular base 72 is provided on the back side of the rotary knob 71. When only the first mat 5 is laid on the carpet 1, the base portion 72 has an inner periphery of the insertion hole 26 of the main body portion 20 as shown in FIGS. 6 (b) and 8 (b). When the first mat 5 and the second mat 7 are laid on the carpet 1, as shown in FIGS. 10 (a) and 12 (a), the mounting holes 55 of the grommet 40B It arrange | positions at the inner periphery and when the rotation knob 71 and the axial part 73 are rotated, it has played the role rotated with less rattling.

  On the other hand, the shaft portion 73 has a rectangular column shape having a rectangular cross section, here, a substantially square column shape having a quadrangular cross section, and extends from the center of the back side of the rotary knob 71 through the base portion 72. The shaft portion 73 may be, for example, a hexagonal column shape or a cylindrical shape, and is not particularly limited.

  As shown in FIGS. 10A and 10B, the shaft portion 73 has at least the grommet 40 </ b> A, 40 </ b> B and the grommet 40 </ b> B mounting hole 55 to the grommet 40 </ b> B mounting hole in a state where the grommets 40 </ b> A, 40 </ b> B are stacked on the main body 20. It extends in length up to 55. In the state shown in FIG. 6 in which one grommet 40 </ b> A is placed on the main body portion 20, the extra length portion of the shaft portion 73 and the second engagement portion 77 are accommodated in the through hole 22 of the main body portion 20. In the state shown in FIG. 10 in which the two grommets 40A and 40B are placed on the main body portion 20, the shaft portion 73 is pulled upward, and the rotary knob 71 is provided at the opening edge of the attachment hole 55 of the front side grommet 40B. To reach.

  Further, first engaging portions 75, 75 project from a pair of parallel outer surfaces located in the axial direction of the shaft portion 73 and in the longitudinal direction of the rotary knob 71.

  As shown in FIG. 8A, the first engaging portion 75 is inserted into the mounting hole 55 of the grommet 40A attached to the single mat 5 with the shaft portion 73 mounted on the carpet 1. When the first mat 5 is placed on the carpet 1 with the rotary knob 71 engaged with the grommet 40A (that is, with the locking member 70 mounted on the main body 20 in advance) and on the carpet 1 (This means that both states are included when the shaft portion 73 of the locking member 70 is inserted into the mounting hole 55 of the grommet 40A after the single mat 5 is placed.) It is.

  Each of the first engaging portions 75 has a tapered surface 75a that gradually decreases in height toward the distal end side in the axial direction of the shaft portion 73 (the end portion side away from the rotary knob 71).

  Furthermore, an engagement surface 75 b that is at an angle substantially perpendicular to the axial direction of the shaft portion 73 is provided on the base end side in the axial direction on the rotary knob 71 side of each first engagement portion 75. . The engaging surface 75b engages with the pair of overhanging portions 28, 28 of the main body portion 20 when the rotary knob 71 rotates a predetermined angle in a state where only the first mat 5 is laid on the carpet 1. It is a part (see FIG. 8A).

  That is, in the first engaging portion 75, one first mat 5 is placed on the carpet 1, and the rotary knob 71 is inserted into the attachment hole 55 of the grommet 40 </ b> A attached to the first mat 5. (See FIG. 5), the rotation knob 71 is at an angle that prevents the attachment hole 55 from being inserted (see FIG. 7), and the engagement surface 75b is engaged with the grommet 40A while the main body 20 It engages with the overhanging portion 28 provided on the head (see FIG. 8A).

  The first engaging portion 75 includes a mounting hole 55 of a grommet 40A attached to the first mat 5 in a state where the first mat 5 is placed on the carpet 1, and a main body portion. When the first engagement portion 75 and a second engagement portion 77 described later are inserted into the 20 insertion holes 26 and the rotary knob 71 is rotated by a predetermined angle, the engagement surface 75b of the first engagement portion 75 is inserted. However, you may make it engage with the overhang | projection part 28 provided in the main-body part 20 (refer Fig.8 (a)).

  Further, in this embodiment, since the shaft portion 73 has a quadrangular prism shape, when the rotary knob 71 is rotated in a predetermined direction while being inserted into the mounting holes 55 of the grommets 40A and 40B, the corners of the shaft portion 73 are obtained. The portion elastically deforms the pair of overhang portions 28, 28 of the main body portion 20 and each overhang portion 28 is elastically restored, so that the insertion hole 26 and the grommet of the main body portion 20 are accompanied with a click feeling. The rotation knob 71 and the shaft portion 73 are rotated by 90 ° with respect to the mounting holes 55 of 40A and 40B (see FIGS. 5 and 7).

  In this embodiment, when the rotary knob 71 is inserted into the mounting hole 55 of the grommet 40A and the rotary knob 71 is rotated by 90 ° (see FIG. 7), the pair of first engaging portions 75 and 75 are formed on the main body. Since the shaft portion 73 rotates so as to face the pair of overhang portions 28, 28 of the portion 20, the margin of engagement between each overhang portion 28 and each first engagement portion 75 is maximized, and the pair The pair of first engaging portions 75 and 75 are securely engaged with the overhang portions 28 and 28 (see FIG. 8A).

  As shown in FIGS. 4A and 4B, a second engaging portion 77 having a substantially rectangular shape is provided at the axial end portion of the shaft portion 73.

  As shown in FIG. 12A, the second engagement portion 77 is disposed on the distal end side of the first engagement portion 75 in the axial direction of the shaft portion 73, and the shaft portion 73 is placed on the carpet 1. In the state where the rotary knob 71 is engaged with the grommets 40B of the outer second mat 7 (that is, the main body portion 20), respectively, inserted into the mounting holes 55 of the grommets 40A, 40B of the two mats 5, 7 placed. When the two mats 5, 7 are placed on the carpet 1 with the locking member 70 mounted in advance, and after the mats 5, 7 are placed on the carpet 1, This is a portion that engages with the main body portion 20, meaning that both the states are included when the shaft portion 73 is inserted through the mounting holes 55 of the grommets 40 </ b> A and 40 </ b> B.

  The second engaging portion 77 protrudes greatly from the surface side of the shaft portion 73 on which the pair of first engaging portions 75 and 75 are formed, and the first engaging portions 75 and 75 of the coaxial portion 73. The amount of protrusion from the pair of outer surfaces orthogonal to the forming surface is small.

  Furthermore, each outer surface of the second engaging portion 77 has a tapered shape that gradually decreases in diameter toward the tip, and its base end surface is an engaging surface that is at an angle perpendicular to the axial direction of the shaft portion 73. 77a, and when the rotary knob 71 rotates a predetermined angle in a state where the first mat 5 and the second mat 7 are laid on the carpet 1, the engagement surface 77a of the main body 20 It is a part engaged with a pair of overhang | projection parts 28 and 28 (refer Fig.12 (a)).

  That is, the second engaging portion 77 has two mats 5, 7 placed on the carpet 1, and the rotary knobs are mounted in the mounting holes 55, 55 of the grommets 40 A, 40 B attached to the mats 5, 7. 71 is inserted (see FIG. 9), the rotation knob 71 is at an angle that prevents the attachment hole 55 from being inserted (see FIG. 11), and is engaged with the grommet 40B of the second mat 7 on the outside. The engaging surface 77a is adapted to engage with the overhanging portion 28 of the main body portion 20 (see FIG. 12A).

  The second engaging portion 77 is inserted into the mounting hole 55 of the grommet 40B of the second mat 7 in a state where the two mats 5 and 7 are placed on the carpet 1. When the second engagement portion 77 is inserted into the mounting hole 55 of the grommet 40A of the first mat 5 and the insertion hole 26 of the main body portion 20 and the rotary knob 71 is rotated by a predetermined angle, the second engagement is achieved. The engaging surface 77a of the portion 77 may be engaged with the overhanging portion 28 provided on the main body portion 20 (see FIG. 12A).

  In this embodiment, when the rotary knob 71 is inserted through the mounting holes 55 of the grommets 40A and 40B and the rotary knob 71 is rotated by 90 ° (see FIG. 11), the longitudinal direction of the second engaging portion 77 is reached. Since the shaft portion 73 rotates so that the portion overlaps with the pair of overhang portions 28, 28, the second engagement portion 77 is firmly engaged with the pair of overhang portions 28, 28. (See FIG. 12A).

  Furthermore, in this embodiment, as shown in FIG. 10 (a), even when the rotary knob 71 can be inserted into the mounting holes 55, 55 of the grommets 40A, 40B, Both side portions in the width direction orthogonal to the longitudinal direction engage with the pair of overhang portions 28, 28 of the main body portion 20.

  Further, as shown in FIGS. 4A and 4B, the shaft portion 73 is formed on the pair of parallel outer surfaces of the shaft portion 73 orthogonal to the formation surfaces of the pair of first engaging portions 75, 75. Projections 80 and 80 having a thin trapezoidal shape extend along the axial direction. The protrusion 80 has a smaller amount of protrusion from the outer surface of the shaft portion 73 than the pair of first engaging portions 75, 75, and from the outer surface of the shaft portion 73 of the second engaging portion 77. It is formed smaller than the protruding amount.

  One end portion of each protrusion 80 on the rotary knob 71 side is aligned with the pair of first engaging portions 75 and 75 in the axial direction, and the end surface thereof faces the rotary knob 71 side. A weak engagement portion 81 having a tapered shape (that is, an acute angle taper shape with respect to the axial direction of the shaft portion 73) that gradually decreases in height is provided.

  As shown in FIG. 6A, the weak engagement portion 81 includes an attachment hole for the grommet 40 </ b> A in which the shaft portion 73 of the locking member 70 is attached to one mat 5 placed on the carpet 1. 55, the rotation knob 71 is rotated by a predetermined angle or more, and the engagement of the rotation knob 71 with the grommet 40A is released. It is a part engaged with the main-body part 20 so that engagement can be cancelled | released.

  In the weak engagement portion 81 in this embodiment, one sheet of the first mat 5 is placed on the carpet 1, and the rotary knob 71 is inserted into the attachment hole 55 of the grommet 40 </ b> A attached to the first mat 5. (See FIG. 5), when the rotation knob 71 is pulled with a force of a predetermined level or more with the rotation knob 71 at an angle that allows the attachment hole 55 to be inserted, the shaft portion 73 is removed from the insertion hole 26 of the main body portion 20. It engages with a pair of overhang | projection parts 28 and 28 of the main-body part 20 so that extraction is possible (refer Fig.6 (a)).

  That is, the weak engagement portion 81 has an acute angle taper toward the rotary knob with respect to the axial direction of the shaft portion 73 as compared with the first engagement portion 75. The engaging force is weaker than the engaging force with respect to the main body portion 20. Therefore, when the rotary knob 71 is pulled with a predetermined force or more, the engagement between the weak engagement portion 81 and the overhang portion 28 of the main body portion 20 is released, and a taper shape is formed on the inner side of the end of the overhang portions 28 and 28. The weakly engaging portions 81, 81 enter so as to sink, and the overhanging portions 28, 28 are slightly expanded, so that the protrusions 80, 80 can pass through the overhanging portions 28, 28, and the main body portion 20 The shaft portion 73 can be pulled out from the insertion hole 26.

  In the weak engagement portion 81, one first mat 5 is placed on the carpet 1, and the first engagement portion 75 and the second engagement portion 77 are attached to the grommet 40A of the first mat 5. When the rotation knob 71 is pulled with a predetermined force or more in a state where the hole 55 can be inserted, the shaft portion 73 of the locking member 70 can be pulled out from the insertion hole 26 of the main body portion 20. You may make it engage with a pair of overhang | projection parts 28 and 28 of the main-body part 20. FIG.

  In the above state, even if an unexpected pulling force below a predetermined value acts on the rotary knob 71, the weak engagement portion 81 engages with the pair of overhang portions 28, 28 of the main body portion 20, so The shaft portion 73 is prevented from being pulled out from the insertion hole 26 of the main body portion 20.

  Further, as shown in FIGS. 4A and 4B, the height of each protrusion 80 gradually increases toward the second engagement portion 77 side at the other end portion on the second engagement portion 77 side. Lower taper surfaces 83 are formed. Between the tapered surfaces 83 and 83 and the second engaging portion 77, concave movement restricting portions 85 and 85 are provided.

  As shown in FIGS. 9 and 10A, the movement restricting portion 85 includes a shaft portion 73 of each of the grommets 40 </ b> A and 40 </ b> B attached to the two mats 5 and 7 placed on the carpet 1. The locking knob 55 is inserted into the mounting hole 55 and fitted to the protruding portion 28 in a state where the rotation knob 71 is at an angle that allows the rotation knob 71 to be inserted into the mounting hole 55 of the grommet 40B of the outer mat 7. It is a part which controls that the axial part 73 of 70 moves to an axial direction.

  Further, as shown in FIG. 10A, the movement restricting portions 85, 85 are engageable with the attachment hole 55 when the rotation knob 71 is disposed on the front side of the attachment hole 55 of the grommet 40B and rotated by a predetermined angle. In a state where the shaft portion 73 is pulled out from the insertion hole 26 of the main body portion 20 until the height position is reached, the pair of projecting portions 28 and 28 are fitted and the shaft portion 73 is restricted from moving in the axial direction. It is supposed to be.

  Further, on each outer surface of the shaft portion 73 on the axial base end side (rotary knob 71 side), a reinforcing rib 87 having a protruding shape is provided so as to project. The reinforcing rib 87 is provided to reinforce the connection portion between the shaft portion 73 and the rotary knob 71.

  In addition, the shape and structure of the 1st engaging part of the latching member demonstrated above, and a 2nd engaging part are not limited to the said aspect. Moreover, although the 1st engaging part and the 2nd engaging part are both provided two each, one may be sufficient and three or more may be sufficient. Furthermore, in this embodiment, the first engagement portion 75 and the second engagement portion 77 are adapted to engage with the pair of overhang portions 28, 28 of the main body portion 20. The part and the second engaging part only have to be configured to engage with any part of the main body part. For example, when the overhanging portion 28 is not provided in the main body portion 20, the first engaging portion 75 or the second engaging portion 77 may be engaged with the rear side periphery of the insertion hole 26.

  Next, the usage method and effect of the mat fastener 10 having the above structure will be described.

  First, the clamping part 31 of the main body part 20 is inserted into the fixing hole 2 of the carpet 1, the clamping part 31 is bent and closed via the hinge 30, and the engaging claw 32 on the tip side is fixed to the fixing hole 3. The carpet 1 is sandwiched between the base 21 and the sandwiching portion 31 of the main body 20 by being engaged with the engaging claws 33 on the back surface side of the main body 20 inside the main body 20 so that the main body 20 can be attached to the carpet 1 (FIG. 6 (a)).

  Further, the grommets 40A and 40B are attached to the first mat 5 and the second mat 7, respectively. That is, the cylindrical portion 51 of the base body 50 is inserted from the front side of the grommet mounting holes 5a and 7a of the mats 5 and 7, and the flange portion 52 is engaged with the front side periphery of the grommet mounting holes 5a and 7a. The cylindrical portion 61 of the lid body 60 is inserted from the back side of 5a and 7a, and is externally attached to the cylindrical portion 51 of the base body 50, and the engaging claw 63 of the lid body 60 is engaged with the engaging portion 53 of the base body 50.

  As a result, the front and back side portions of the grommets mounting holes 5a and 7a of the mats 5 and 7 are sandwiched between the flange portion 52 of the base body 50 and the flange portion 62 of the lid body 60, and the grommets 40A, 40B can be mounted (see FIGS. 6 and 10).

  Then, when fixing the first mat 5 on the carpet 1, first, the rotary knob 71 is attached to the main body portion 20, and is rotated to an angle that allows insertion into the attachment hole 55 of the grommet 40 </ b> A. That is, as shown in FIG. 5, the rotary knob 71 is rotated so that the longitudinal direction of the rotary knob 71 is perpendicular to the longitudinal direction of the main body 20, and the rotary knob 71 is moved to the length of the grommet 40A. The grommet 40 </ b> A is placed above the main body portion 20 in alignment with the hole-shaped attachment hole 55.

  Then, the grommet insertion part 23 of the main body part 20 is inserted into the inner periphery of the cylindrical part 51 of the grommet 40A, and the attachment hole insertion part 25 of the main body part 20 is inserted into the attachment hole 55 of the grommet 40A. The rotary knob 71 is inserted through the mounting hole 55 and inserted through the front opening of the mounting hole 55 (see FIG. 6).

  At this time, the pair of first engaging portions 75 and 75 of the locking member 70 do not engage with the pair of overhang portions 28 and 28, but the pair of weak engaging portions 81 and 81 provided on the shaft portion 73. However, it engages with a pair of overhang | projection parts 28 and 28 of the main-body part 20 (refer Fig.6 (a)).

  In the above state, the rotation knob 71 is rotated to an angle that prevents the rotation knob 71 from being inserted into the mounting hole 55 of the grommet 40A. Here, as shown in FIG. 7, the rotary knob 71 is rotated by 90 ° from an angle perpendicular to the longitudinal direction of the mounting hole 55, that is, from the state shown in FIG. Then, as shown in FIG. 7 and FIG. 8A, the rotary knob 71 rides on the center of the walls 56, 56 via the tapered surface 56a, and engages with the front peripheral edge of the mounting hole 55 of the grommet 40A. At the same time, the engaging surfaces 75b and 75b of the pair of first engaging portions 75 and 75 of the locking member 70 engage with the pair of overhanging portions 28 and 28 of the main body portion 20. On the other hand, the grommet 40 </ b> A is prevented from coming off, and the first mat 5 can be fixed to the carpet 1.

  In addition, after mounting the first mat 5 on the carpet 1 without attaching the locking member 70 to the main body 20 in advance, the locking member is inserted into the mounting hole 55 of the grommet 40A and the insertion hole 26 of the main body 20. 70 is inserted, and the rotary knob 71 is rotated by a predetermined angle, whereby the rotary knob 71 is engaged with the mounting hole 55 of the grommet 40A, and the grommet 40A is prevented from coming off from the main body portion 20. The first mat 5 may be fixed to the carpet 1.

  On the other hand, when the two mats 5, 7 are fixed on the carpet 1, first, as shown in FIGS. 5 and 6, the mounting knob of the grommet 40A with the rotary knob 71 attached to the main body portion 20 is used. The pair of weakly engaging portions 81 and 81 of the locking member 70 are engaged with the pair of overhanging portions 28 and 28 of the main body portion 20.

  In this state, as shown by an arrow in FIG. 6A, when the rotary knob 71 is lifted upward and pulled with a force of a predetermined value or more, a pair of weak engagement portions 81, 81 and a pair of overhang portions The engagement with 28 and 28 is released, and the shaft portion 73 is pulled out from the insertion hole 26 of the main body portion 20. Further, by pulling the shaft portion 73, the shaft portion 73 is inserted from the insertion hole 26 of the main body portion 20 until the engagement surface 77 a of the second engagement portion 77 engages with the pair of projecting portions 28, 28 of the main body portion 20. As shown in FIG. 10A, the pair of overhang portions 28 and 28 are fitted into the movement restricting portions 85 and 85 of the shaft portion 73 so that the axial movement of the shaft portion 73 is restricted. .

  Then, the shaft portion 73 is pulled out from the insertion hole 26 of the main body portion 20, and the angle at which the rotary knob 71 can be inserted into the mounting holes 55 of the grommets 40A and 40B (the longitudinal direction of the rotary knob 71 shown in FIG. The rotation knob 71 is sequentially inserted into the mounting holes 55, 55 of the two grommets 40A, 40B, and the outer grommets 40B (side away from the carpet 1) It is inserted from the mounting hole 55.

  In this state, when the rotary knob 71 is rotated to an angle (an angle shown in FIG. 11) that prevents the insertion of the grommet 40A through the mounting hole 55 of the grommet 40A, as shown in FIG. And the engagement surface 77a of the portion along the longitudinal direction of the second engagement portion 77 of the locking member 70 is engaged with the front peripheral edge portion of the attachment hole 55, and the pair of projecting portions 28, 28, the grommets 40 </ b> A and 40 </ b> B are prevented from coming off from the main body 20, and the two first mats 5 and the second mat 7 can be fixed to the carpet 1.

  In addition, after mounting the first mat 5 and the second mat 7 on the carpet 1 without attaching the locking member 70 to the main body 20 in advance, the mounting holes 55 of the grommets 40A and 40B and the insertion of the main body 20 are inserted. By inserting the shaft portion 73 of the locking member 70 into the hole 26 and rotating the rotary knob 71 by a predetermined angle, the rotary knob 71 is engaged with the mounting hole 55 of the grommet 40B, and the main body portion 20 is thus engaged. The grommets 40 </ b> A and 40 </ b> B may be prevented from coming off and the first mat 5 and the second mat 7 may be fixed to the carpet 1.

  As described above, the fastener 10 can be fixed in a state where one mat 5 is placed on the carpet 1 and can be fixed in a state where two mats 5 and 7 are placed. it can. In addition, when mounting one mat 5 and when mounting two mats 7, it is possible to use a common locking member 70 and handle it by a simple operation of simply moving it. Therefore, the number of parts can be reduced, parts management becomes easy, and the manufacturing cost can be reduced.

  When the first mat 5 or the second mat 7 is to be removed from the carpet 1 for cleaning or replacement of the mat, the rotation knob 71 is inserted at an angle that allows the rotation knob 71 to be inserted from the mounting holes 55 of the grommets 40A and 40B. After the rotation (see FIGS. 5 and 9), the second mat 7 and the first mat 5 are sequentially lifted, and the grommet 40B and the grommet 40A are extracted from the rotation knob 71 of the locking member 70 to thereby remove the mat. 5 and mat 7 can be removed from the carpet 1.

  In this embodiment, as shown in FIGS. 6A and 8A, the first engagement portion 75 of the shaft portion 73 of the locking member 70 is engaged with the insertion hole 26 of the main body portion 20. In the state in which the shaft portion 73 is inserted up to the position where it is aligned, regardless of the angle of the rotary knob 71, either the first engagement portion 75 or the weak engagement portion 81 is the main body portion. 20 (here, the overhanging portion 28), so that it is possible to prevent the shaft portion 73 from coming off from the insertion hole 26 of the main body portion 20 during handling of the stopper 10. When the two mats 5 and 7 are stacked and placed, as shown in FIG. 6A, the weak engagement portion 81 is engaged with the overhanging portion 28 of the main body portion 20, Since the shaft portion 73 can be pulled out by pulling with a force greater than a predetermined force, the rotary knob 71 can be inserted into the mounting holes 55 of the grommets 40A and 40B of the two mats 5 and 7, respectively.

  In this embodiment, in order to fix the two mats 5, 7 on the carpet 1, the shaft portion 73 of the locking member 70 is moved to a position where the second engagement portion 77 engages with the main body portion 20. 10 is pulled out from the insertion hole 26 of the main body portion 20, the pair of overhang portions 28, 28 of the main body portion 20 are fitted into the movement restricting portions 85, 85 of the shaft portion 73, as shown in FIG. Since the shaft portion 73 can be maintained in the pulled-out state, when the two grommets 40A and 40B are stacked on the main body portion 20, the rotary knob 71 is inserted from the mounting hole 55 of the second grommets 40B. The fixing workability of the two grommets 40A and 40B can be improved.

  Further, in this embodiment, when the grommet 40B is placed above the grommet 40A so that the two mats 5 and 7 are placed on the carpet 1, the grommet 40A attached to the inner first mat 5 Since the grommets 40B attached to the outer second mat 7 are concavo-convexly fitted, the positional shift between the grommets 40A and 40B can be effectively suppressed. Further, since the displacement load between the mats 5 and 7 (for example, a lateral load shifted in the plane direction with respect to the carpet 1) is less likely to act on the shaft portion 73 of the locking member 70, damage to the shaft portion 73 is suppressed. be able to.

  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. .

1 Carpet 5, 7 Mat 10 Mat fastener (fastener)
20 Main body 28 Overhang 40A, 40B Grommet 57 Concave 58 Convex 70 Locking member 71 Rotating knob 73 Shaft 75 First engaging part 77 Second engaging part 81 Weak engaging part 85 Movement restricting part

Claims (4)

In the mat fastener for fixing the mat placed on the carpet,
A main body portion attached to the carpet; a grommet attached to the mat; and a locking member that fixes the main body portion and the grommet.
The locking member has a rotation knob and a shaft portion extending from the rotation knob,
The main body has an insertion hole through which the shaft portion of the locking member is inserted,
The grommet has a mounting hole through which the shaft portion of the locking member is inserted,
A state where the coaxial portion is inserted into the mounting hole of the grommet attached to one mat placed on the carpet, and the rotary knob engages with the grommet in the shaft portion of the locking member And a first engaging portion that engages with the main body portion;
The coaxial portion is disposed in the axial direction of the shaft portion in front of the first engagement portion, and the coaxial portion is inserted through the attachment holes of the grommets attached to the two mats placed on the carpet. A mat fastener, comprising: a second engaging portion that engages with the main body portion in a state where the rotary knob is engaged with a grommet of an outer mat.   In the shaft portion of the locking member, a coaxial portion is inserted through an attachment hole of the grommet attached to one mat placed on the carpet, and the rotary knob is rotated by a predetermined angle or more. In a state where the engagement of the rotary knob with the grommet is released, the engagement with the main body portion is enabled so that the engagement with the main body portion can be released by pulling the locking member with a force greater than a predetermined force. The mat fastener according to claim 1, wherein weak mating portions are provided. Around the insertion hole of the main body part, an overhanging part that is elastically pressed when the shaft part is inserted into the insertion hole is provided,
The mounting hole of the grommet has a shape that allows the rotation knob of the locking member to be inserted at a predetermined angle, and cannot be inserted at a predetermined angle different from that.
The shaft portion of the locking member has a coaxial portion inserted through attachment holes of the grommets attached to the two mats placed on the carpet, and the rotary knob is provided on the outer mat grommets. 2. A movement restricting portion is provided that restricts movement of the shaft portion in the axial direction by fitting with the projecting portion in an angle that allows insertion into the mounting hole. Or the fastener for mats of 2.   When two mats are placed on the carpet, there are provided a concave and convex fitting portion on the contact surface between the grommet attached to the inner mat and the grommet attached to the outer mat. The mat fastener according to any one of claims 1 to 3.