JPH0979242A - Mat fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable it to secure a mat securely without entailing any play in time of fixation. SOLUTION: A base member 6 is fitted in a stud bolt 4 attached tight to a floor panel 2, and secured tight by a nut 5. An elastic engaged piece 12 extending to the side of the base member 6 is installed in a mat presser member 7 formed with a large diameter cap part to secure a floor mat 3 by way of holding it in a gap with the floor panel 2, and an engaging recess part 13 is installed in the extended floating end. An engaging part 9 being engageable with the engaging recess part 13 is installed in the base member 6, while this engaging part 9 and a resilient engaging piece 12 both are firmly engaged tight with each other against any pulling force of the mat presser member 7, while they are installed as being capable of releasing the engagement against any turning force in the circumferential direction. With operations of turning the mat presser member 7, both mounting and dismounting operations can be done in a simple manner, while any play in the axial direction is also preventable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mat fixing tool suitable for fixing a mat to be laid inside a vehicle compartment.

[0002]

2. Description of the Related Art Conventionally, mat fixtures having various structures have been used to fix a floor mat laid in the interior of an automobile in place. For example, a stud bolt is provided on the floor panel, an opening surrounding the stud bolt is provided on the floor mat, and a mat fixing tool integrally formed with a cylindrical portion that can be inserted into the opening and a large-diameter flange portion is used. , There is one in which a floor mat is clamped and fixed between a floor panel and a flange portion.

[0003]

In the above-mentioned mat fixing device, a claw is provided on the inner peripheral surface of the cylindrical part, and the cylindrical part is pushed into the stud bolt to engage the claw with the threaded part of the stud bolt. And can be fixed to the floor panel. However, the nail may be damaged when the mat fixture is pushed into the bolt, and the nail may be further damaged especially when the mat is removed and reused during the mat replacement or other maintenance. There is a problem that if the mat is damaged, rattling occurs in the mat fixture.

[0004]

SUMMARY OF THE INVENTION In order to solve the above problems and to realize a mat fixing tool that securely fixes mats without rattling, the present invention provides:
A mat fixture for fixing a mat laid in a vehicle interior, the base member being screwed to a panel surface in the vehicle interior, and expanded from the base member to sandwich the mat between the panel surface. A mat pressing member having a diameter, and one of the mat pressing member or the base member is provided with an elastic engaging piece that projects to the other side in a state where the mat pressing member is attached to the base member, Further, an engaging portion capable of engaging with the elastic engaging piece is provided on the other side, and the elastic engaging piece and the engaging portion with respect to a force for pulling out the mat member from the base member in the axial direction. Is firmly engaged, and the engaged state can be released with respect to the force of rotating in the circumferential direction.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail based on specific examples shown in the accompanying drawings.

FIG. 1 is an exploded perspective view showing a mat fixing tool to which the present invention is applied. The mat fixing tool 1 is a floor mat to be placed on a surface of a floor panel 2 of an automobile on the inner side of the passenger compartment. 3 is fixed. As shown in the figure, the stud bolts 4 are fixed to the floor panel 2 in an upright state, and the floor mat 2 has the floor panel 2
When the floor mat 3 is placed, the hole 3a surrounds the stud bolt 4 when the floor mat 3 is placed. There is. Then, the base member 6 is inserted into the hole 3a, the nut 5 is screwed and fixed to the stud bolt 4, and the mat member 7 is joined to the base member 6 to fix the mat member. Is configured.

The base member 6 includes inner and outer cylindrical portions 8a.
8b is coaxially formed, and both are integrally formed of a synthetic resin material in a shape in which they are connected to each other by a radial rib 8c. On the inner peripheral surface of the inner cylindrical member 7, a radially inward flange 8d having an inner diameter through which the stud bolt 4 can be inserted.
The flanged nut 5 is formed when assembled.
By tightening, the nut 5 presses the radially inward flange 8d, and the base member 6 is fixed to the floor panel 2. Further, in the assembled state of the inner peripheral surface of the outer cylindrical portion 8, four engaging portions 9 arranged at equal intervals in the circumferential direction so as not to interfere with the radial ribs 8c in the radial direction are provided in the radial direction. It is projected in the direction.

The mat pressing member 7 has a diameter larger than that of the base member 6 and has a shape in which a dish having a diameter larger than the hole 3a of the floor mat 3 is turned down, and the mat pressing member 7 faces downward from the center of the lower surface of the cap portion 10. A central cylindrical portion 11 protruding outward, and extending downward from the lower surface of the cap portion 10 outside the central cylindrical portion 11 and arranged at equal pitches in the circumferential direction so as to correspond to the engaging portions 9. And is formed integrally with a synthetic resin material in a shape having four elastic engagement pieces 12 that are elastically deformable in the radial direction.

On the outer surface of the extended free end portion of the elastic engaging piece 12, there is provided a rectangular engaging recess 13 which can engage with the engaging portion 9 when assembled. As shown in FIG. 2, the engaging recess 13 is formed by a surface orthogonal to the extending direction of the upper wall surface and the lower wall surface 13a in the assembled state.
As shown in FIG. 5, each of the left and right side wall surfaces 13b is formed by an inclined surface that expands in a V shape.

Further, as shown in FIG. 2, the engaging portion 9 is formed with a lower surface 9a facing the lower side at the time of assembling in a surface orthogonal to the standing direction, as shown in FIG. 12
3 is formed by an inclined surface that faces obliquely upward so as to be able to guide the extended free end portion of each of the left and right side wall surfaces 9b, and as shown in FIG. There is.

The mat fixture 1 thus constructed
The fixing procedure of the floor mat 3 according to is shown below.
First, as shown in FIG. 1, the floor mat 3 is placed at a predetermined position on the floor panel 2 so that the hole 3a
The stud bolt 4 faces inside, and the stud bolt 4 is inserted in the center opening of the base member 6 by the radially inward flange 8d.
The base member 6 is housed in the hole 3a so as to be inserted therethrough. Then, the nut 5 is screwed into the stud bolt 4 and the radially inward flange 8d is pressed by the nut 5 to fix the base member 6.

The mat pressing member 7 is coaxial with the base member 6 so that the elastic engaging piece 12 is aligned with the space between the inner and outer cylindrical portions 8a and 8b which does not interfere with the engaging portion 9. Fit in. At this time, as described above, since the central cylindrical portion 11 is coaxially inserted into the inner cylindrical portion 8a, the misalignment does not occur.

The central cylindrical portion 1 of the mat pressing member 7
1 has a small diameter portion 11a that can be inserted into the inner cylindrical portion 8a with a certain degree of tightness, and a shoulder portion 11b that abuts the upper end surface of the inner cylindrical portion 8a during assembly. Further, on the mat pressing member 7, a cylindrical stopper that comes into contact with the upper end surface of the outer cylindrical portion 8b at the time of assembly at a position outside the elastic engaging piece 12 in the radial direction and corresponding to the outer cylindrical portion 8b of the base member 6. The part 14 is formed. Therefore, at the time of assembly, the shoulder portion 11b contacts the inner cylindrical portion 8a and the stopper portion 14 contacts the outer cylindrical portion 8b, respectively, so that the mat pressing member 7 is positioned in the insertion direction. In the positioned state, the engagement portion 9 and the engagement recess 13 are aligned with each other in the insertion direction of the mat pressing member 7.

Then, as shown by the arrow A in FIG. 3, by turning the mat pressing member 7, the side wall surface 9b of the engaging portion 9 guides the elastic engaging piece 12 to elastically deform, and the engaging portion 9, the elastic engagement piece 12 rides on the elastic engagement piece 12, and when further rotated, the elastic engagement piece 12 collides with the radial rib 8c, but the engagement concave portion 13 aligns with the engagement portion 9 at that position. The engaging recess 13 fits into the engaging portion 9 at that position.

At this time, the height and depth of the engaging portion 9 and the engaging concave portion 13 are set so that the elastic engaging piece 12 returns to its original position due to its elastic restoring force. In the direction in which the mat 7 is pulled out, the lower side wall surface 13a contacts the lower surface 9a as described above, and the mat pressing member 7
Is stopped.

Further, by appropriately setting the inclination angles of both the side wall surface 9b and the side wall surface 13b, the arrow B in FIG.
It is possible to suitably prevent the disengagement with respect to the rotational force in the disengagement direction. When detaching, the elastic engaging piece 12 can be bent by the relative guide between the side wall surface 9b and the side wall surface 13b by turning it in the direction of arrow B with a certain amount of force. The recess 13 can be detached. At this time, since the engaging portions 9 are defined by the radial ribs 8c, the elastic engaging piece 12 rides on the engaging portion 9 on the opposite side and engages again with a large torque in the disengaging direction. There is no. In this way, the attachment / detachment of the mat fixing tool 1 can be performed easily and reliably.

The mat fixture 1 may be arranged so as to also serve as a stopper for the accelerator pedal. In that case, for example, even if the rod of the accelerator pedal hits the position shown by the arrow P in FIG. 2, the shoulder portion 11b corresponds to the inner cylindrical portion 8a and the stopper portion 14 corresponds to the outer cylindrical portion 8b as described above. Abutting, it is possible to prevent rattling of the P portion against external force. This rattling is caused by the lower surface 9a of the engaging portion 9 and the lower side wall surface 1 of the engaging concave portion 13.
It is also suppressed by the contact with 3a.

In the above embodiment, the elastic engaging piece 12 is provided on the mat pressing member 7 and the engaging portion 9 is provided on the base member 6. However, according to the present invention, contrary to the above, the elastic engaging piece is provided. Piece 12
May be provided on the base member 6 and the engaging portion 9 may be provided on the mat pressing member 7. Also in this case, the same effect as that of the above specific example is obtained.

[0019]

As described above, according to the present invention, the base member is screwed to the panel, and the engaging portion of the base member and the elastic engaging piece of the mat pressing member are applied to the pulling force of the mat pressing member. The mat is firmly engaged with the mat and the mat pressing member can be attached / removed by turning the mat pressing member because it is disengageable with respect to the force of turning in the circumferential direction. It can be performed easily, and rattling in the axial direction can be prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a mat fixture to which the present invention is applied.

FIG. 2 is a side sectional view showing a mat fixed state by a mat fixing tool.

FIG. 3 is an enlarged cross-sectional view of a main part shown by being broken along a line III-III in FIG.

[Explanation of symbols]

 1 mat fixing tool 2 floor panel 3 floor mat 3a hole 4 stud bolt 5 nut 6 base member 7 mat pressing member 8a inner cylindrical portion 8b outer cylindrical portion 8c radial rib 8d radial inward flange 9 engaging portion 9a lower surface 9b side Wall surface 10 Cap portion 11 Central cylindrical portion 11a Small diameter portion 11b Shoulder portion 12 Elastic engagement piece 13 Engagement recess 13a Lower side wall surface 13b Side wall surface 14 Stopper section

Claims (1)

[Claims] 1. A mat fixture for fixing a mat laid in a vehicle compartment, the base member being screwed to a panel surface in the vehicle interior,
A mat pressing member having a diameter larger than that of the base member so as to sandwich the mat with the panel surface, and the mat pressing member or the base member is attached to the base member of the mat pressing member. In the attached state, an elastic engaging piece protruding to the other side is provided, and an engaging portion capable of engaging with the elastic engaging piece is provided on the other side, and the elastic engaging piece and the engaging portion are provided. However, the mat fixture can firmly engage with the force of pulling the mat member from the base member in the axial direction and can release the engaged state with respect to the force of rotating the mat member in the circumferential direction. .