JP2603458Y2 - Board anchor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board anchor used for fixing an object to be fixed such as a rail or a hook to an appropriate fixing point such as an interior board of an automobile, a concrete board or a plaster board. .

[0002]

2. Description of the Related Art Conventionally, as a board anchor used to fix a rail as described above, for example, as shown in FIG. 9, a distal end portion 12 and a base end portion 13 constituting a board anchor 11 are provided. Connection spring 14 formed in a coil shape
The board anchor 11 is connected to the front end 1
2 are flexibly bent so that the entire distal end portion 12 of the board anchor 11 is pressed into the insertion hole B formed in the interior board A. After projecting the entire distal end portion 12 of the board anchor 11 to the back side of the insertion hole B and restoring the three locking pieces 15 to the initial state, the board anchor 1
A screw-shaped member C inserted through the center of the base end 13 is rotated in a screwing direction by a turning operation tool (not shown) such as a screwdriver to form a coil-shaped connection between the front end 12 and the base end 13. The connection spring 14 is contracted in the axial direction against the elasticity, and the distal end 12 side screwed to the screw member C is screwed rearward so that the back side peripheral edge of the insertion hole B formed in the interior board A is formed. The locking pieces 15 of the distal end portion 12 are locked to the portion, and the board anchor 11 can be fixed to the insertion hole B of the interior board A.

[0003]

However, when the board anchor 11 is fixed as described above, the coil-shaped connecting spring 14 for connecting the distal end portion 12 and the base end portion 13 is forcibly forced against elasticity. When the connecting spring 14 is elastically contracted, the connecting spring 14 itself tends to be restored to an initial state by elasticity.
In some cases, the axial center between the base 2 and the base 13 is displaced, so that it is difficult to draw the front 12 and the base 13 straight in the axial direction. Therefore, the interior board A
Tip 1 with respect to the peripheral edge on the back side of insertion hole B formed in
2, the locking pieces 15 are not bitten evenly, and the strength required to fix and prevent the board anchor 11 from turning and retaining cannot be obtained.

When the thickness of the interior board A is smaller than the contraction dimension of the connection spring 14 connecting the distal end portion 12 and the base end portion 13, the connection spring 14 is made more elastic than the thickness of the interior board A. Because it cannot be contracted against
There is a problem that the use is limited to the interior board A which is thicker than the contraction dimension of No. 4.

[0005] In view of the above problem, the present invention screw-feeds a distal end member and a proximal end member constituting a board anchor along a plurality of guide shafts in opposite directions.
It is an object of the present invention to provide a board anchor which can be securely stopped and fixed to an insertion hole appropriately formed in a fixing portion.

[0006]

According to the present invention, the board anchor is divided into a distal end member protruding from the back side of the insertion hole and a base end member engaged with the front side of the insertion hole. A stopper portion is formed on the outer peripheral surface of the tip member so as to be flexible between a closed angle state in which the insertion hole is allowed to be inserted into the insertion hole at the fixed location and an open angle state in which the insertion hole is locked with the insertion hole. A plurality of guide holes formed on the one member side,
It is a board anchor in which a plurality of guide shafts formed on the other member side are inserted in the axial direction and the respective members are slidably connected in opposite directions.

[0007]

According to the present invention, each guide shaft of the base member constituting the board anchor is inserted into each guide hole of the distal member, and a screw member of an appropriate dimension is inserted from the base member side to thereby form a central portion on the distal member side. After screwing into, the stopper portion of the tip member is flexibly inserted into the insertion hole of the fixed portion, and after projecting the entire tip member on the back side of the insertion hole to restore the stopper portion to the initial state,
The screw member is turned in the screwing direction by a turning operation tool such as a screwdriver, and the distal end member and the base end member are screwed in opposite directions along each of the plurality of guide shafts, so that the screw member can be fixed to a fixed portion. The stopper of the tip member is locked to the peripheral edge of the back surface of the formed insertion hole, the outer peripheral edge of the base member is locked to the peripheral edge of the front surface of the insertion hole, and the board anchor is stopped and fixed and pulled out. The required strength to stop and secure is obtained.

[0008]

According to the present invention, the distal end member and the proximal end member constituting the board anchor are screwed in opposite directions along a plurality of guide shafts. The axial center between the distal end portion and the proximal end portion does not shift, and the distal end member and the proximal end member can be drawn straight in the axial direction. In addition, since the retaining portion of the distal end member is uniformly and securely locked to the peripheral edge of the back surface of the insertion hole formed at the fixing portion, the strength required for the rotation fixing and the retaining fixing can be obtained. In addition, the board anchor of the present invention can be firmly embedded and fixed in the insertion hole of the fixing point.

In addition, since the distal end member and the base end member are slid and adjusted at intervals corresponding to the thickness of the fixed portion, the embedded member can be securely embedded and fixed in a thin board as in the conventional example. The thickness of the location is not limited, and its use can be widened.

[0010]

An embodiment of the present invention will be described in detail below with reference to the drawings. The drawing shows the board anchor used to fix the guide rail to the car interior board,
1 and 2, the board anchor 1 is locked on the front side of the insertion hole B formed in the interior board A, and is locked on the back side of the insertion hole B. A screw member C inserted from the base member 2 side is screwed into the center of the distal member 3 while being divided into the distal member 3 and the members 2 and 3 are relatively moved by the screw feed of the screw member C. It slides back and forth in the opposite axial direction.

The above-mentioned base member 2 is shown in FIGS.
As shown in FIGS. 6 and 7, for example, the base member 2 is formed of a flexible synthetic resin material such as polyacetal or polycarbonate, and the head 4 of the base member 2 is inserted into the insertion hole of the interior board A. B is slightly larger than B in size and shape to be locked to the peripheral edge of the insertion hole B on the front side, and a screw member C
Are formed in the axial direction. In addition, three guide shafts 6 are formed in the peripheral direction at the front end side of the base member 2 centering on the insertion hole 5 at predetermined regular intervals in the axial direction.

The above-mentioned tip member 3 is formed of a flexible synthetic resin material such as polyacetal or polycarbonate, for example, and the tip part 7 of the tip member 3 is inserted through the insertion hole B of the interior board A. Is formed to have a size and a shape that allow insertion into the insertion hole B, and an outer peripheral portion on the distal end side of the tip portion 7 is formed on a tapered surface having a small diameter in the insertion direction. ing.

Further, three retaining pieces 8 are formed on the outer peripheral portion on the rear end side of the distal end member 3 so as to face backward at predetermined regular intervals,
Opening the rear end side of each retaining piece 8... At an interval where the rear end side of the insertion hole B formed in the interior board A is locked to the peripheral edge on the back side of the insertion hole B. Each of the retaining pieces 8 is flexibly provided in a closed angle state in which insertion is permitted and an open angle state in which the insertion hole B is locked to the peripheral edge of the back surface of the insertion hole B.

A screw member C is provided at the center of the shaft of the tip member 3.
Along with screwing a screw hole 9 for screwing in the axial direction,
3 on the rear end side peripheral edge of the tip member 3 centered on the screw hole 9
The guide holes 10 of the book are formed in the axial direction at predetermined regular intervals.

Assuming that the illustrated embodiment is configured as described above, a method of fixing the board anchor 1 to the interior board A will be described below. First, as shown in FIG. 8, after each guide shaft 6 of the base member 2 constituting the board anchor 1 is inserted into each of the guide holes 10 of the distal member 3, via the guide rail D and the washer E, A screw member C having an appropriate size is inserted from the rear side into the insertion hole 5 of the base member 2, and the screw member C inserted into the insertion hole 5 is screwed into the screw hole 9 of the distal member 3, and the interior The distance between the proximal member 2 and the distal member 3 is kept slightly apart from the thickness of the board A.

Next, when the tip member 3 constituting the board anchor 1 is inserted into the insertion hole B of the interior board A, each of the retaining pieces 8 of the tip member 3 is inserted into the insertion hole B of the interior board A. The distal end member 3 is press-fitted into the insertion hole B of the interior board A by flexing to an allowable closed angle state. By projecting the entire distal end member 3 on the back surface side of the insertion hole B, each of the retaining pieces 8 of the distal end member 3 is restored to the open angle state in which the stopper pieces 8 are locked to the peripheral portion on the rear surface side of the insertion hole B. .

Thereafter, the screw member C inserted into the insertion hole 5 of the base member 2 is turned in the screwing direction by a turning operation tool (not shown) such as a screwdriver, so that the tip member 3 and the base member 2 are rotated. Are screwed in opposite directions along each of the three guide shafts 6, so that the retaining pieces 8 of the tip member 3 are formed on the back side peripheral edge of the insertion hole B formed in the interior board A. The head 4 of the base member 2 is engaged with the peripheral edge of the insertion hole B on the surface side, so that the board anchor 1 can be firmly embedded and fixed in the insertion hole B of the interior board A.

As described above, since the proximal member 2 and the distal member 3 constituting the board anchor 1 are screwed in opposite directions along the three guide shafts 6... As shown in FIG. 11, the axial center between the distal end portion 12 and the proximal end portion 13 does not shift, and the proximal end member 2 and the distal end member 3 can be drawn straight in the axial direction. In addition, since the retaining pieces 8 of the distal end member 3 equally and surely bite into the peripheral edge of the back surface of the insertion hole B formed in the interior board A, it is necessary to fix and prevent the rotation. The strength is obtained, and the board anchor 1 of the present invention can be firmly embedded and fixed in the insertion hole B of the interior board A.

Since the base member 2 and the distal member 3 are slid and adjusted at an interval corresponding to the thickness of the interior board A,
It can be securely embedded and fixed even in the thin interior board A as in the conventional example, and the thickness of the interior board A is not limited, and its use can be widened.

In the correspondence between the configuration of the present invention and the above-described embodiment, the fixing points of the present invention correspond to the interior board A and the insertion hole B of the embodiment, but the present invention is different from the above-described embodiment. It is not limited only to the configuration.

In the above-described embodiment, the base member 2 and the tip member 3 constituting the board anchor 1 are provided so as to be separable. For example, each guide shaft 6 of the base member 2 is connected to the tip member 3. After being inserted into the respective guide holes 10, the respective guide shafts 6.
The base end member 2 and the front end member 3 that constitute the board anchor 1 can be handled as one part by processing the protrusion-side end of the base anchor.

The guide shafts 6 and the guide holes 10 may be changed to an appropriate number, for example, two, four, six, etc., and the number is not limited to the number in the embodiment.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a disassembled state of a board anchor.

FIG. 2 is a longitudinal sectional side view showing an assembled state of a board anchor.

FIG. 3 is a front view showing an assembled state of a board anchor.

FIG. 4 is a rear view showing an assembled state of the board anchor.

FIG. 5 is a side view showing an assembled state of the board anchor.

FIG. 6 is a plan view showing an assembled state of a board anchor.

FIG. 7 is a bottom view showing an assembled state of the board anchor.

FIG. 8 is a longitudinal sectional side view showing a fixed state of the board anchor.

FIG. 9 is a side view showing a conventional board anchor.

[Explanation of symbols]

 A: interior board B: insertion hole C: screw member D: guide rail 1: board anchor 2: base end member 3: distal end member 6: guide shaft 8: retaining piece 10: guide hole

Claims (1)

(57) [Scope of request for utility model registration] 1. A screw screwed into the board anchor after the tip end of the board anchor is inserted into the insertion hole formed at an appropriate fixing point, and the tip end side of the board anchor projects from the back side of the insertion hole. The distal end side and the base end side are pulled in opposite directions by screw feed of the member, the distal end side is locked to the back side peripheral edge of the insertion hole, and the front side peripheral edge of the insertion hole is What is claimed is: 1. A board anchor for locking and embedding and fixing a base end side, comprising: a tip member projecting the board anchor to the back side of the insertion hole; and a base member locked to a front surface side of the insertion hole. And formed into a closed angle state in which the outer peripheral surface of the tip member is allowed to be inserted into the insertion hole at the fixed point, and an open angle state in which the insertion angle is locked to the insertion hole. A plurality of guides formed on the one member side to form a stopper; If, by inserting a plurality of the guide shaft which is formed on the other member side in the axial direction, slidably linked board anchor in a direction opposing the respective member.