JPH07174124A - Anchor assembly body for clamping tool - Google Patents

Abstract

PURPOSE:To provide clamping work on the concealed side of a wall by way of keeping the size of an opening part of the wall to the minimum by a solid clamping tool storage device supported on a leg part member free to move and consisting of an anchor means revolving between a first position interfacing with the leg part member and a second position crossing the leg part member. CONSTITUTION:An anchor assembly body 10 has a shape capable of storing a shaft part of a bolt 18. A collar member 20 has a pair of wire leg parts 24, 26, positioned free to slide in holes 23, 25 and it passes through the collar 20 in the terminal direction. An anchor member 31 has a screw hole 40, and after the anchor member 31 is arranged on the concealed side of a wall 14, the bolt 18 is stored in the hole 40 and screwed on it. The screw hole 40 and a revolving point are slipped from the center of the anchor member 31 in the lengthy direction, and when the anchor member 31 is arranged on the terminal of the leg part members 24, 26 or its neighbourhood free to slide, it is possible to rotate the anchor member 31 by work of gravitation and to engage it with the concealed side surface of the wall 14.

Description

Detailed Description of the Invention

[0001]

RELATED APPLICATION This application is a part-pending application of US patent application Ser. No. 07 / 696,880 dated May 8, 1991.

[0002]

BACKGROUND OF THE INVENTION

1. FIELD OF THE INVENTION The present invention relates to anchor devices for fastening objects to hollow walls. Plaster board, masonry technology,
Walls such as bricks are constructed so that elongated fasteners such as bolts and screws for attaching workpieces can be attached.

2. Description of the Prior Art Various devices and systems have been used for the concealed mounting arrangement of objects to support structures, including hollow walls, such as walls constructed of plasterboard, masonry, bricks and the like.
For example, support structures such as buildings, towers, bridges, etc., require hidden mounting configurations and require fasteners to be inserted into the support structure and mounting devices to be on the hidden side.

There are conventional devices and systems for inserting a fastener housing device behind a support member to control a mounting medium such as a screw nut, but these devices achieve all types of tightening operations. It is not possible to make a hidden control of a mounting device with the strength that it can.

US Pat. No. 4,075,924 relates to an anchor assembly for a fastener that facilitates control of the anchor member by a pair of leg members to which the anchor member is attached.

US Pat. No. 2,908,196 relates to a toggle bolt which includes a relatively complex system which facilitates a hidden mounting operation on a support wall. Toggle elements are provided for screw engagement.

US Pat. No. 2,398,720 relates to a toggle lock having a pair of legs, a guide member and a self-opening / closing arm.

As is known, a number of other devices have been used that allow fasteners to be attached to the hidden side of a wall structure. However, these devices utilize a complex configuration to achieve hidden control, which inevitably compromises the tightening system strength. For example, the size of such fastener receiving device increases the size of the wall opening because a nut or other fastener receiving element must first be inserted into the opening in the support structure. When relatively complex devices such as open / close arms, channels, etc. are used for gripping operations, the wall openings must be large enough to accommodate such devices. Ideally, a solid fastener housing maximizes strength, minimizes wall opening size, and provides a clamping action on the hidden side of the wall. . The present invention relates to an anchor assembly for a fastener that achieves such an effect.

[0009]

SUMMARY OF THE INVENTION An anchor assembly is provided for retaining a fastening member within an opening formed in a support means having at least one distal side, the at least two elongate legs disposed in adjacent relationship. A member and an anchor means movably supported on the leg member and pivotable between a first position aligned with the leg member and a second position transverse to the leg member.

An anchor assembly is provided for retaining a fastening member within an opening formed in a support means having at least one distal side, the anchor assembly including at least two elongated leg members disposed in adjacent relationship. And an anchor member having a hole for accommodating the leg member, the anchor member being movably supported on the leg member,
The anchor member preferably pivots between a first position aligned with the leg member and a second position transverse to the leg member.

In a preferred embodiment, there is provided an anchor assembly for retaining a fastening member within an opening formed in a supporting means such as a hollow wall, the anchor assembly comprising at least two elongate legs arranged in adjacent relationship. And a anchor member movably supported on the leg member and pivotable between a first position aligned with the leg member and a second position transverse to the leg member. The anchor means can be easily rotated from the first position to the second position by means associated with at least one of the leg member and the anchor means.

Means for facilitating movement of the anchor member from the first position to the second position when the at least one leg member and at least a portion of the anchor member engage each other are provided. And at least one of the anchor members. Means for facilitating movement of the anchor member toward the second position includes at least one distal end of the leg member when the anchor member is advanced distally or when the leg member is withdrawn proximally. At least one shelf of a shape and size to engage with. The shelf may form an acute angle with respect to at least one leg member when the anchor member is in the first position. Further, the distal end of the at least one leg member engages the ledge when the anchor member is advanced distally along the leg member from the first position or the leg member is withdrawn proximally. It may have a shape that allows it. The distal end of the at least one leg member comprises a ramp in a direction capable of engaging a shelf to pivot the anchor member toward the second position when the anchor member is advanced distally from the first position. Can be made. The anchor member has a shelf located on the side of the anchor member opposite the first shelf, which shelf is preferably of the same shape with the same angle to the leg member.

In one embodiment, the second leg member comprises an end having a beveled surface similar to the angle of the second shelf and the anchor member is advanced distally from the first position or the leg member. The second shelf can be engaged while the distal end of the leg member is engaged with the first shelf when the is pulled proximally. By this engagement, the anchor member can be rotated toward the second position. The distal end of the at least one leg member is shaped to allow the anchor member to pivot from the first position to the second position by engagement of the anchor member and the distal end of the leg member. Further, each leg member engages the anchor member to move the anchor from the first position to the second position when the anchor moves distally or at least one of the leg members moves proximally. It is preferable to have a distal end means that can be pivoted by means of.

In the preferred embodiment, the two elongate leg members are arranged in adjacent relationship and the means for forming a bevel at the distal end of each leg member is such that the anchor member advances distally from the first position, or Alternatively, when the leg member is pulled out in the proximal direction, the anchor member can be engaged, and the anchor member can be rotated toward the second position.
The leg member is preferably wire-like and the collar member is sized and shaped to be supported at the proximal end of the leg member and insertable within the opening in the wall. The collar member has holes that match the threaded holes in the anchor member to facilitate insertion of an elongated fastening member such as a threaded bolt.

The anchor member may be manufactured from at least one of steel and plastic. Other suitable materials known in the art may be used. Further, the collar member has a circular hole for receiving the elongated fastening member, the fastening member having a cross-section similar to the circular hole. Depending on the application, steel, plastic or other suitable material may be used for the collar member.

The wire-shaped member is shaped so as to form a sloping portion at the distal end, and when the anchor member is advanced in the distal direction or the leg member is pulled out in the proximal direction, the sloping portion is formed in the anchor member. It is preferable to engage the distal end. The engagement causes the anchor member to rotate from the first position to the second position by linear movement and rotation of the anchor member with respect to the leg member. At least two for accommodating the leg members and slidably and pivotally supporting the anchor members
Three elongated holes are provided in the anchor member. The anchor member has opposite tracks for slidably receiving each elongated leg member. The truck consists of two parts,
The first portion extends over a portion of the length of the anchor member, the second portion is opposite the first portion, and extends over the rest of the length of the anchor member.

The anchor assembly may consist of at least two component members attached to each other, which may be integral. The element members of the anchor member may be attached to each other along the intermediate surface. Further, the track portion of the anchor member has an arcuate cross-section and can accommodate the wire leg member and slidably support the anchor member. The anchor member is rectangular and has a hole for accommodating the tightening member. Further, the opening formed in the anchor member is substantially elliptical and is formed at the intersection of the leg support tracks on either side of the anchor member.

The first track portions on both sides of the anchor member have different lengths from the second track portions on both sides of the anchor member, whereby a pivot shaft for pivoting the anchor member is formed, and the center of gravity of the anchor member is increased. It may be spaced from the pivot axis to allow the anchor member to pivot about the axis under gravity.

Also disclosed is an anchor assembly for retaining an elongated fastening member within an opening formed in a support member having at least one distal side, the at least two elongated leg members disposed in adjacent relationship. And when the leg member is in the first position, occupies a first position parallel to the leg member and the position of the leg member is rotated to a second position. , Second across the leg member
An elongated anchor member occupying a position.

In a preferred embodiment, an anchor assembly is provided for retaining an elongated fastening member within an opening formed in a support member having at least one concealed side, the anchor assembly comprising at least two arranged in parallel relationship. Two elongated leg members, slidable and movable along the leg members, occupying a first position parallel to the leg members when the leg members are in the first position, and the position of the leg members. When it is rotated to the second position, the anchor member occupying the second position at right angles to the leg member and the shape and size that can be attached to the base end of the leg member and can be positioned in the opening of the support member. And connecting means. The connecting means has a hole sized and shaped to accommodate an elongated fastening member, the anchor member being located distally of the support member and occupying a second position at a right angle to the leg member. Facilitates attachment of the elongated fastening member to the.

The leg members are preferably connected at their proximal and distal ends by wire-like bridges. The proximal wire-like bridge facilitates manual grasping of the leg member, and the distal wire-like bridge engages the anchor member, which is advanced towards the concealed side of the support member and tightened. Arranged so that they can. The leg member may have a shape capable of engaging with the anchor member and starting rotation to the second position parallel to the concealing wall surface.

In a preferred embodiment, there is provided an anchor assembly for retaining an elongate screw fastening member within an opening formed in a wall portion having at least one concealed side, which is at least arranged in parallel relationship. It has two elongated leg members, the leg members being of circular cross section. The anchor member has an elongated shape and is slidably supported on the leg member. The anchor member has a length that is greater than its width and has ledges that extend over a portion of its length on either side. Each shelf is of circular cross-section capable of slidably supporting one of the leg members, the anchor member having the same shaped shelf extending over the rest on the same side, and the shelf is It has a circular cross section, is in the opposite direction of the circular cross section of the first shelf, and can accommodate the leg members slidably. The latter part of the shelf is larger than the first part of the shelf and a transverse pivot is formed at the intersection of the two parts, the center of gravity of the anchor member is spaced from the pivot and the legs are When the member and the anchor member are in the first position, the gravitational moment of the anchor member maintains the anchor member in a horizontal position by engaging a portion of the first shelf with the leg member, and the leg member and the anchor member are When rotated about 180 °, the gravitational moment of the anchor member causes the anchor member to pivot about the pivot axis to a position perpendicular to the leg member. Inserting the anchor member into the opening in the wall, laying it parallel to the leg member and rotating the leg member and the anchor member about 180 ° causes the moment of gravity to cause the anchor member to move about the axis about the leg member. You may make it rotate to a right angle direction.

The collar member has two holes for slidably accommodating the base ends of the leg members.
The hole has a shape and size capable of being accommodated in the opening portion of the wall and is capable of accommodating the screw tightening member. The anchor member accommodates the tightening member and has a screw hole for screwing. When the position of the screw hole with respect to the rotation axis is selected and the anchor member is arranged at a right angle to the leg member,
The screw holes align with the holes formed in the collar member. The elongated member is a wire-shaped member having a circular cross section. The first shelf portion of the anchor member has a circular cross-section and faces in a first direction, the second shelf portion has a circular cross-section and faces in a direction opposite to the direction of the first shelf, and includes first and second The two shelves form circular tracks on either side of the anchor member to slidably accommodate wire-like elongated leg members.

In one embodiment, the anchor member may be glued to the concealed side of the wall and may have an adhesive member on one side for attachment and the screw holes of the anchor member may be positioned to align with the holes in the wall. The adhesive member is a double-sided adhesive tape member, the first side surface is adhered and attached to the surface of the anchor member, and the second side surface is adhered and attached to the end side of the wall, before inserting the tightening member, the anchor member Can be fixed towards the hidden side of the wall.

In another embodiment, the collar member has two distally extending members, which are positioned proximate to the leg members and have a plurality of step members. The surfaces on both sides of the anchor member are sized and shaped to accommodate and engage the step member stepwise, the anchor member is disposed at a right angle to the leg member, and the anchor member faces the collar member. And advanced to progressively engage the side surface of the anchor member with a step portion formed on the distally extending member, the step portion engaging the anchor member until the anchor member engages the distal surface of the wall. Holding it in place, the anchor member is held in engagement with the step portion. The member extending in the distal direction is preferably formed integrally with the collar member. The collar member may be made of metal, plastic or any suitable material. The step extension is preferably formed integrally with the collar member.

The anchor member preferably consists of two element halves mounted in a face-to-face relationship. First
The element half has a flank extending from one side thereof towards the outer position and forms part of a circular track on either side thereof, the second half being in the direction of the flank of the other half. A second pair of circular shaped shelves (shoulders) is formed for accommodating the leg members, including inclined side surfaces that are angled in opposite directions. A rotary shaft of the anchor member is formed at the connecting portion of the circular first and second shelves. The shelves do not have to be circular, but have the same or the same cross section as the legs, and when the bow-shaped, V-shaped, or other wire is held, the anchor member can be easily slid to rotate. Can be moved.

In another embodiment, the elastic member can easily rotate the anchor member to the second position across the leg member. The elastic means comprises an elastic member disposed between the distal end of the leg member and the anchor member, the elastic means engaging the distal end of the anchor member when the anchor member is disposed parallel to the leg member. The elastic means is a coil spring arranged between the curved end of the leg member and the end of the anchor member, which exerts a force towards the anchor member to cause its elasticity and elasticity as the leg member rotates to the second position. Gravity causes the leg members to pivot toward a position across them. In this embodiment, when the anchor member is rotated to the second position, the elastic spring can easily engage and disengage it.

Embodiments of the present invention will be described below.

[0029]

DESCRIPTION OF THE PREFERRED EMBODIMENT Referring to FIG. 1, there is shown a hidden anchor assembly 10 of the present invention prior to insertion into an opening 12 in a wall 14 having hidden sides. As will be described below, the anchor assembly is permanently attached to the wall and the third member 16 is attached to the wall by a suitable screw fastener 18, such as a bolt.

Referring to FIG. 1, the anchor assembly has a hole 22 sized and shaped to accommodate the shank of the bolt 18 relatively closely. The collar member 20 is constructed of a suitable material, such as metal or plastic, and has a pair of elongated wire-like legs 25, 26 which are slidably positioned within the holes 23, 25 and which can be
0 through the end. In the embodiment shown in FIG. 1, the wire-shaped legs are connected to each other, and the curved connecting end 2 is provided at the end thereof.
8 are provided. However, the leg members may be separated from each other as described below. The collar 20 and the hole 22 are such that when the fastener is inserted into the hole 22 and screwed together,
It has a shape capable of compensating the alignment between the anchor member 31 and the fastener 18.

As shown in FIG. 4, the anchor member 3
1 is an upper half 30 and a lower half 32 attached to each other
The upper half has a hole 34 and the lower half has an extension protrusion 36 of a size, shape and position that can be received and interference fit within the hole 34 of the upper half 30. As shown in FIG. 4, an extension prong 36 is provided by known techniques to punch material from the other side of member 34 to form a hole 38, the ejection material of which allows the projection 36 to be accurately sized. It is formed. As another method for attaching the two halves of the anchor member, the weld of FIG. 19,
Adhesion or other methods may be used. If the weight is lighter, the anchor member may be made of a lightweight material such as plastic, for example, polypropylene, polyethylene, or polycarbonate. However, in this case, it is preferable to provide a heavy insert, such as a metal insert in the anchor member for rotation under the moment of gravity, as will be described later.

Referring to FIG. 1, the anchor member 31 has a threaded hole 40, and after the anchor member is placed on the concealed side of the wall, the bolt 18 is received in the threaded hole 40 and screwed. As shown in FIG. 4, the anchor member 31
Each half 30, 32 of the taper has opposite tapered sides 42, 44
Have. The lower half 32 has a tapered side surface 44 extending from the proximal end closer to the screw hole 40, and the upper half 30 has an inverted shaped tapered side surface 42 extending from a position closer to the tapered hole 40 to the distal end of the anchor member. Upper side 42
Forms a shelf 46 of circular cross section on the upper half 30 and the lower side 48 forms a shelf 48 of similar circular cross section on the lower half 32. The shelves 46, 48 of circular cross-section have the same curvature, forming a trajectory that is the same as or slightly larger than the curvature of the wire legs 24, 26 on either side of the anchor member 31, as will be described below. , The anchor member 30 to the wire leg 2
It can be slid proximally and distally along 4, 26.

Referring to FIG. 2, there are shown circular shelves 42,44 on the sides of the anchor member 31, partially broken away to allow the anchor member to be slid onto the elongated wire leg members 24,26. The exact shape of the shelf containing the legs 24, 26 for support is shown. The upper half of the anchor member 31 has an outwardly tapered side surface 42 (one side surface is shown in FIG.
And both sides are the same and opposite.)
Forming a circular lower downward facing surface 46 for sliding the anchor member along the wire legs 42, 46. The lower half 32 of the anchor member 31 has a tapered side surface 44 forming an upward circular shelf 48.

Referring to FIG. 2, the intersection of the circular shelf 54 and the tapered side surface 44 forms a taper at the distal end 50 of the outwardly extending tapered side surface 44 of the lower member 32. This tapered end 50 is also the horizontal tapered shelf 4 of FIG.
2, forming a circular vertical shelf 54 indicated by the dotted line in FIG. Both shelves 48, 50 intersect at 51. Similarly, the upper portion 30 of the anchor member 31 forms a tapered vertical vertical shelf 52 similar to the circular horizontal shelf 46, and the intersection 53.
Has a tapered end 52 which is continuous with the ledge 46.

Referring to FIG. 2, the lower shelf taper side 50 ends at 60, at which point the upper shelf taper side 52 begins. Thus, both tapered ends have an adjoining relationship and include wire legs 24, 26 to form a continuous circular trajectory for the wire legs, with half the circular trajectory being formed in the lower half, The circular orbit is formed in the upper half. Therefore, the wire leg is prevented from moving laterally from the track. The anchor member 31 can be pivoted between the position of FIG. 1 and the lateral position of FIG. 9, and a circular arcuate connection is used as the pivot axis.

Referring to FIG. 1, the hole 40 is located at a pivot point 60 formed at a connecting portion between the tapered outer walls 42 and 44 of the anchor member 31. The screw hole 40 and the turning point 60 are deviated from the center of the anchor member 31 in the length direction, and the anchor member serves as the leg members 24, 2 as will be described later.
When slidably disposed at or near the end of 6, the anchor member can be rotated by the action of gravity.

In operation, when the anchor assembly is positioned as shown in FIG. 5 and the long end of anchor member 31 is in the distal position, the center of gravity of anchor member 31 is shown in FIG. The gravitational force acting on the anchor member rotates the anchor member clockwise, so that the circular shelves 46 and 48 on both sides of the anchor member 31 are
Engage the elongated wire leg members 24, 26, which prevents their rotation. When the anchor member is in its distal position, the ledge 48 engages the leg member to prevent rotation.

When the operator firmly holds the collar member 20 by hand, the leg members 24 and 26 are secured as shown in FIG.
Extend distally and the anchor members are arranged horizontally parallel to the leg members 24, 26. When the anchor member 31 is arranged horizontally in this position, the anchor member is easily inserted into the opening 12 of the wall and the concealed side surface 11 of the wall 12 is
Over. The relative position of the anchor member 31 and the wall opening 12 is shown in the side view of FIG. 6, which is a view along line 6-6 of FIG. At this point, as shown in FIG. 7, the operator rotates collar member 20 in one direction to rotate the entire anchor assembly.

In particular, as seen by the operator in FIG. 7, the anchor assembly rotates counterclockwise. However, a similar result can be obtained by rotating it clockwise. When the anchor assembly is rotated as shown in FIG. 7, the shelf 48 is rotated to a position above the leg members 24, 26 and the anchor member 3 is rotated.
The gravity acting on the center of gravity of unit 1 causes the anchor member 31 to rotate. Thus, the anchor member pivots about a pivot point 60 formed at the connection between the horizontal and vertical circular shelves 48, 54 extending outwardly from its side surface. The pivoting moment acts on the anchor member 31, and the anchor member is moved as shown in FIG.
To the position shown in FIG. 1, which is perpendicular to the elongated wire leg members 24, 26,
It is parallel to 1. Therefore, the anchor member can be moved in the proximal direction and engaged with the concealed side surface 11 of the wall 14.

When the fastener assembly is rotated 180 degrees or more from the position shown in FIG. 5 (returned to the position shown in FIG. 5), the gravitational moment of the anchor member causes the anchor member to move to the position shown in FIG. Rotate towards the horizontal position shown in. Finally, the circular shelf 48 becomes the leg members 24, 26.
, Which prevents rotation of the anchor member 31 and positions the anchor member in a horizontal position, allowing the anchor assembly to be removed from the opening 12 in the wall 14 if desired.

The subsequent operation of the anchor member will be described with reference to FIG. The operator grips the base ends of the leg members 24 and 26 on which the connection loop 27 is formed. The connecting loop 27 is then manually pulled proximally and the distal connecting loop 28 engages the anchor member 31 and displaces it distally so that the anchor member 31 contacts the hiding surface 11 of the wall 12. . In this state, the screw bolt 18 is inserted into the collar 20 and is rotated, and the screw opening 4 of the anchor member 31 is rotated.
Screwed to zero. The bolt is tightened and the anchor member 31 is sufficiently tightened to the concealed side surface 11 of the wall 14.
As shown in FIG. 11, a workpiece, such as a plank 16 or other member, is placed toward the wall and attached to the wall by bolts 18, with optional washers 19 depending on the application and heads 21 of the bolts. And work piece 1
It is placed between eight. Any workpiece may be attached in any suitable manner.

It is clear that the structure of the anchor member 31 is unique. Outwardly extending upper and lower shelves form a circular cross-section track for the wire legs, with a unique pivoting connection between the lower half shelf of the anchor member and the upper half shelf of the anchor member. Forming a point and connecting the anchor member to the leg member 2
4, 26 support. This provides a unique configuration that allows the entire anchor assembly to rotate and the resulting gravity and rotational moments to be utilized to relatively easily rotate the anchor member to the operative position. While numerous attempts have been made to date to provide a fastener that allows the operator to control the direction of the hidden anchor from the exposed side when placed behind the hidden side of the wall, This structure has great advantages over the conventional device.

Referring to FIG. 11, the technique for attaching the upper half 30 and the lower half 32 to form the anchor member 31 is shown in detail, with the protrusion 36 of the lower half 32 in the hole 34 of the upper half 30. It is fitted with an interference fit. The lower half can therefore be made of commercially available steel or molded of a suitable plastic material. The other half may be manufactured similarly. The two halves are then positioned in adjacent relationship and assembled so that the legs 24,26 are in place and engage the circular side ledges (or tracks). The halves are positioned relative to each other and are connected so that the anchor members are leg members 24, 26.
Is slidably mounted along and prevents disengagement of the leg member from the anchor member. The two halves are then combined and then threaded into the hole 30, or prior to assembly, each half is threaded and the post assembly halves 30, 32 of the anchor member and the hole 40 are continuous.

Before positioning the leg members 24 and 25, the anchor member 31 may be completely assembled or integrally molded (plastic). In this case, the leg member is bridge 2
It may be manufactured as a separating member without 8. Therefore, the leg members may be inserted into the circular holes formed by the tracks 46, 48 and curved into the pigtail 33 shown in FIG. The ends of the leg members 24, 25 may have another curved shape, that is, a U shape, a circular shape, or the like.

Referring to FIG. 12, another embodiment of the present invention is shown in which the anchor member 31 has a distal arcuate surface 33 and the coil spring 62 has an arcuate surface and wire leg 24. It is arranged between curved connecting bridges 28 formed in 26. The purpose of this shape is to rotate the anchor member 31 to a position perpendicular to the leg members 24, 25 when rotating the anchor assembly. As is apparent from FIG. 13, when the anchor assembly is rotated as shown in FIG. 7, the gravitational moment causes the anchor member 31 to be positioned at right angles to the leg members and parallel to the concealed side surface 11 of the wall 14. Rotate towards. In addition to this, as shown in FIG. 12, the coil spring 62 in a compressed state moves the anchor member and provides a biased spring force that causes a rotational moment of the anchor member 31, thereby assisting the gravitational moment. To do. FIG. 14 shows the anchor member 31 of the embodiment of FIG. 12 secured in place on the wall 12 and the workpiece 16 mounted in place by the fasteners 18. 15 is a partial cross-sectional view of the compressed coil spring shown in FIG.

Referring to FIG. 16, another embodiment is shown in which a side of the anchor member 31 is provided with a double-sided adhesive tape 64 which engages the concealing surface 11 of the wall 12. The anchor member is supplied by the manufacturer, the adhesive tape 64 is attached to one side of the anchor member, and the other side for attaching to the wall is covered with release paper, which the user can easily remove to expose the adhesive surface of the tape. You may be allowed to do. Alternatively, a double-sided adhesive tape may be supplied as a separating element from the manufacturer, and release paper may be provided on both adhesive surfaces.

Referring to FIG. 17, another embodiment is shown. In this embodiment, the collar 20 has distally extending leg members 68 which taper distally outwardly for engaging outwardly tapered surfaces 42 on opposite sides of the anchor member 31. The ratchet-shaped step portions 70 and 72 extending inward in the radial direction are formed. Due to the similar shape and size of the ratchet members 70, 72, the wire legs 24, 26 are pulled inward and the anchor member 31 advances inwardly toward the concealed side of the wall 12 to extend the extension 6
6, 68 ratchet-like steps 70, 72 progressively ratchet engage. Accordingly, the outwardly extending tapered surface 42 of the anchor member 31 engages and secures the proximal position of the anchor member 31 such that the anchor member 31 is rigidly fixed in place relative to the concealed side 11 of the wall 12 and of the ratchet. Tooth 7
It is held firmly in that position by 0,72. At this time, the screw hole 40 of the anchor member 31 is aligned with the hole 12 of the wall 14, and the threaded fastener 18 is easily inserted, so that the screw hole 40
Can be screwed onto. The extensions 66, 68 also prevent rotation of the anchor member 31 when the bolts are threaded.

In the embodiment of FIGS. 17 and 18, the leg members 24, 26 have different shapes, the connecting loops 28 at the ends of the leg members 24, 26 have been removed, and the leg members 24, 2 have been removed.
Pig tails 33, 35 are formed at the end of 6. Similar to the embodiment of FIG. 1, the leg members of the embodiment of FIGS. 17 and 18 are slidably disposed in holes 23. In FIG. 17, the leg members 24 and 25 and the holes 23 and 25 are the collars 2.
It is located radially inward of 0 and fits radially outwardly of the extensions 66, 68. In other respects, the anchor assembly shown in FIGS. 17 and 18 is similar to the anchor assembly shown in FIG. Further, as in the embodiment of FIG. 1, the collar 20 may be of metal, molded plastic or other suitable material.

Referring to FIG. 19, another embodiment is shown in which half 30 is welded 74 to half 32, thereby forming anchor member 31. Other means of attaching the half members are also conceivable. In particular, the material from which the anchor member is formed determines the attachment means of the half members 30,32. For example, for heavy weights, the anchor member may be made of steel, in which case the half mounting technique shown in FIGS. 4, 16 and 19 is suitable. In addition to this, one half of the steel may be attached with an adhesive. If the anchor member is constructed of a molded plastic material such as polyethylene, polypropylene, polyester, polycarbonate, the half of the anchor member can be attached by adhesive or ultrasonic welding techniques. The plastic anchor member may be integrally molded in one unit. A heavier insert may be added to form a heavier portion of the plastic anchor member to increase the moment of gravity. Alternatively, a portion of the material may be removed by drilling to reduce its weight.

When the halves are generally attached and the threaded fastener 18 is screwed onto the assembled anchor member 31, both halves are compressed by the inward force of the fastening member screws and the anchor assembly. Therefore, the attachment strength of the half portion of the anchor member 31 is not important.

Referring to FIG. 20, there is shown another embodiment, in which elements similar to those in the above-mentioned embodiment are designated by the same reference numerals with the reference numeral "1". The hidden anchor assembly 110 of the present invention is shown mounted within wall 114. The wire-shaped legs 124 and 126 are slidably arranged in the holes 123 and 125 of the collar 110 similar to the above-described embodiment. The legs 124, 126 are also elongated holes 147 formed at the intersection of arcuate shelves 148, 146 similar to the elongated holes formed in the shelves 46, 48 shown in the embodiment of FIGS. The pivotal anchor member 131 is slidably supported by 149 (not shown).
Therefore, as described in the above-mentioned embodiment, the anchor member 131 can be slid and rotated by the elongated holes 147 and 149. The uniquely formed holes and wire-like legs are important features of the invention.

In the embodiment of FIG. 20, the ends of legs 124 and 126 are shaped to provide ramps 126a and 124a, and the ends of support ledges 146 on either side are beveled at 146a. Accordingly, when the legs 124, 126 move proximally, the ramps 124a, 126a of the legs engage the slanted shelves 146a, causing the anchor 131 to move from the first horizontal position shown to the distal side surface 111 of the wall 112. Second parallel
Rotate towards the vertical position. As is apparent, FIG.
In the same manner as in the embodiment of FIG.
Are coupled together at their proximal ends by means of which they can slide within the elongated holes 147, 149 of the anchor member.

The shelves 146, 14 with arcuate holes 147, 149
Formed at the intersection of 8 as shown in FIGS. 2 and 3, which is substantially oval. Therefore, the anchor member 131 can freely rotate on the leg member, and when the cross member 126b moves in the proximal direction, the leg member 1 can be rotated.
The ends of 24, 126 engage the angled ledges of the anchor member 131. When the legs move proximally to the position shown by the dotted line in FIG. 22, the anchor member 131 is placed in the vertical position shown and the fastener can be inserted. The anchor member may be rotated to a desired angle to engage the surface 111 of the wall 112. In FIG. 22, the surface 111 is perpendicular to the leg member, but other angles are possible,
The hidden wall surface may form an angle with respect to the front wall surface. After installation is complete, the legs 124, 1
26 may be returned to its terminal position, or it may be broken and removed.

23-26 show the embodiment of FIGS. 20-22, with the anchor member engaging the fastener 118 and the wall when the fastener is inserted into the opening 122 of the collar 120. 1
Pivot toward a vertical position parallel to the distal side surface 111 of twelve. As apparent from FIGS. 24-26, when the anchor member is in the first position, that is, in the position parallel to the legs 124, 126, first the distal end of the bolt 120 and the proximal end of the anchor 131 engage. Due to this engagement, the anchor member 131 moves toward the distal end, and the inclined surface 146a at the distal end causes the leg 12
4, 126 slidably engaged with the anchor member 131.
Rotates upward to a second position, that is, a position parallel to the rear surface 111 of the wall 112. As the bolt 118 moves distally, as shown in FIG. 25, it progressively engages the anchor 131, after which the bolt 118 is easily inserted into the threaded hole 140 in FIG.
Workpiece A can be fixed to wall 112. Extra portions of leg members 124, 126 and bridge 12
6a may be cut or broken and removed, or it may be left at the position shown. The anchor member 131 may have a rounded shape so that the fastening tool 118 can be smoothly and continuously engaged.

Referring to FIGS. 27-30, another embodiment is shown in which the special shape of the tips of the legs 124, 126 or the sharp beveled portion 124c that engages the distal end of each shelf 146. Rotation of the anchor member 131 is obtained by 126c. As shown in FIG. 28, the legs 124, 1
The sharp slopes 124c, 126c at the end of 26 cause pivoting of the anchor member 131, eliminating the need for the sloped shelf 146a of Figures 23-26. In the embodiment of FIGS. 27-30, the bolt 118 shown in FIGS. 28-30.
27 to rotate the anchor member 131 from the first horizontal position shown in FIG. 27 (that is, the position parallel to the legs 124 and 126) to the second vertical mounting position shown in FIG. Yes, the anchor is the rear surface 111 of the wall 112.
Are placed in parallel with. As shown in FIG. 30, bolts 118 are threaded into holes 140 in anchor member 131 to attach a workpiece or other purpose.

Tilted shelves 14 of the embodiment of FIGS.
6a can be provided on one side or both sides of the anchor 131. Also in the embodiment of FIGS. 27 to 30, sharply inclined leg portions 124c, 126c are provided on one or both legs. In either configuration, the anchor 131 is slid and rotated to move the leg member 12
The unique elongated holes 147 and 149 capable of holding the four and 126 can effectively rotate the anchor member 131. As shown in Figures 2-4, these holes are generally elliptical in shape and are formed by the intersection of the arcuate shelves described in Figures 2-4. It is therefore clear that the invention relates to a slide and pivotally supported anchor 131 which can be pivoted by the engagement of the anchor 131 with at least one leg 124, 126.

Other points of the embodiment shown in FIGS. 20 to 30 are as follows.
This is similar to the above-described embodiment. For example, the materials of manufacture may be similar and the anchor member may be manufactured from the two halves previously described, or may be manufactured as a unitary member. Other variations are possible within the scope of the invention.

The advantages of this anchor assembly are clear.
Some of the advantages are: The solid structure of the anchor member makes it possible to manufacture a high-strength anchor member and to obtain a higher tightening force than that of a conventional anchor member using a channel member, a screw nut, a plate, or the like. In addition, the solid shape and tightening capacity of the anchor member does not require larger wall openings to support higher strength anchor members.
Therefore, the size in the width direction of the anchor member can be made extremely close to the actual size of the opening of the wall, and the size of the screw fastener can be maximized with respect to the size of the opening of the wall. it can. This is due to a novel method for slidably and pivotally supporting an anchor member to a relatively thin wire leg. For a conventional anchor assembly utilizing anchor members, such as screw fasteners, screw nuts, etc., the largest anchor openings, ie, openings larger than 1/2 inch, a typical anchor member would have a force of 1200 pounds. Was able to support. An example of this anchor assembly using a solid anchor member 31 containing a 3/8 size bolt supports a force of approximately 10500 pounds. Anchor members containing 1/2 inch size bolts support approximately 11200 pounds of force. It is also possible to change the material from which the anchor member is made, which further increases its strength.

Utilizing solid fasteners to minimize anchor member size, wall opening size, and threaded fasteners. A large supporting force of the anchor member can be obtained. It is difficult to control the position of the anchor member on the hidden side of the wall, and such a solid anchor member could not be used in the manner described herein. The present invention enables such control and can significantly increase the bearing capacity of the anchor assembly.

[Brief description of drawings]

FIG. 1 is a perspective view of a hidden anchor assembly of the present invention for insertion into a wall opening.

2 is a partially cutaway side view of the anchor member of FIG. 1 with the leg members removed.

FIG. 3 is a partially cutaway side view taken along line 3-3 of FIG.

4A is a cross-sectional view taken along line 4A-4A of FIG. 3 showing a preferred method for assembling the half of the anchor member and the anchor support shelf within the distal end of the anchor member, and FIG. 4B. 4B is a cross-sectional view taken along line 4B-4B of FIG. 3 showing the anchor support shelf of the base of FIG.

5 is a partial cross-sectional side view of the anchor assembly and wall of FIG. 1 after the anchor member has been inserted into the opening and the anchor member has been placed on the concealed side of the wall.

6 is a rear view along line 6-6 of FIG. 5 showing the anchor assembly of FIG. 5 after insertion into the wall opening.

7 is a partial cross-sectional side view of the anchor member and wall of FIG. 5 as the anchor assembly rotates to a position perpendicular to the legs.

8 is a rear view taken along line 8-8 of FIG. 7 showing the concealed side of the wall and the position of the anchor member as it rotates.

FIG. 9 is a partial cross-sectional side view of the anchor assembly when the anchor member is positioned at a right angle to the leg member.

10 is a partial cross-sectional side view of the anchor assembly of FIG. 9 after the leg member and anchor member have been withdrawn distally and the anchor member contacts the concealed side of the wall.

11 is a cross-sectional view of the anchor member of FIG. 10 in which the screw fastening member is disposed in the collar, passes through the concealed side of the wall, is screwed and attached to the anchor member, and the third member is secured to the wall. is there.

FIG. 12 illustrates another embodiment of the present invention in which an elastic coil spring is disposed at the distal end of the leg member and engages one end of the anchor member, the anchor member is disposed at a right angle to the leg member and tightened. It is a partial cross-section explanatory drawing.

FIG. 13 is a partial cross-sectional explanatory view of another embodiment of FIG. 12 showing the anchor member moving toward a position perpendicular to the leg member.

FIG. 14 is the view of FIG. 13 with the screw fastener located in the collar, screwed onto and attached to the anchor member, the anchor member secured to the concealed side of the wall and the third member attached to the front side of the wall. It is a partial cross section explanatory drawing of an anchor assembly.

15 is an explanatory view showing a part of the coil spring of the embodiment of FIG. 12, taken along line 15-15 of FIG.

FIG. 16 is an explanatory view showing another embodiment of the present invention showing a state in which a double-sided adhesive is used and the anchor member is preliminarily attached to the concealed side of the wall.

FIG. 17 is another embodiment of the invention in which a pair of extension members extend distally from the collar member to form a plurality of ratchet members for temporarily fixing the position of the anchor member toward the concealed side of the wall. It is a perspective view of an example.

FIG. 18 is a cross-sectional view of another embodiment of the hidden anchor assembly of FIG. 17 showing the ratchet member engaging the anchor member and the anchor member contacting and securing the concealed side of the wall.

FIG. 19 is a cross-sectional view of the hidden anchor assembly of the present invention showing another embodiment for attaching the half of the anchor member.

FIG. 20 is a cross-sectional view of another embodiment of the invention in which the distal leg and anchor member initiate rotation of the anchor member when the leg and anchor member engage one another.

FIG. 21 is a cross-sectional view similar to FIG. 20 with the leg members pulled out to allow the distal ends of the leg members to easily engage the anchor members.

22 is a sectional view similar to FIG. 21 after the anchor member has been pivoted to a second position parallel to the distal side of the wall and the leg members have been advanced distally to their normal distal position.

FIG. 23 is viewed from below the distal end of the leg member that engages a correspondingly shaped ramp formed on the distal end of the anchor member as the anchor member advances from a first position parallel to the leg member. It is an expansion perspective view.

24 is a cross-sectional view similar to FIG. 21, showing an embodiment in which the fastening member is inserted into the collar, engages the proximal end of the anchor member, and moves it from the first position to the second position. is there.

25 is a sectional view similar to FIG. 24, showing the elongated fastening member when the anchor member is further rotated toward the second position.

26 is a cross-sectional view similar to FIG. 22 after the workpiece is in place, the clamping members are inserted into the collar, screwed onto and attached to the anchor members.

FIG. 27 is another embodiment of the present invention in which the end portions of the leg members are connected by a bridge portion, and the end leg portions are shaped so that the anchor member can be rotated from the first position toward the second position. FIG.

FIG. 28 is a cross-sectional view similar to FIG. 24, showing a state in which the anchor member starts to rotate by the engagement of the tightening member, and the anchor member moves from the first position in the distal direction.

29 is a cross-sectional view similar to FIG. 25, showing the anchor member that rotates toward the second position and the tightening member that engages with the anchor member.

FIG. 30 is an explanatory view showing a fastening member that is disposed in the anchor member and the collar and the wall in the second position at right angles to the leg portion, is housed in the central fastening hole of the anchor member, and is screwed together.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Anchor assembly 12 Opening 14 Wall 18 Fastener 20 Collar 24, 26 Leg 31 Anchor member

Claims (30)

[Claims] 1. An anchor assembly for retaining a fastening member within an opening formed in a support means, comprising: (a) at least two elongate leg members arranged in adjacent relationship; and (b). Anchor means movably supported on the leg member and pivotable between a first position aligned with the leg member and a second position traversing the leg member; (c) the leg member and the An anchor assembly associated with at least one of the anchor means for facilitating pivoting of the anchor means from the first position to the second position. 2. An anchor assembly for retaining a fastening member within an opening formed in a support means having at least one distal side, wherein: (a) at least two elongate legs arranged in adjacent relationship. And (b) an anchor member movably supported on the leg member and pivotable between a first position aligned with the leg member and a second position across the leg member, (c) ) When at least a portion of at least one said leg member and said anchor member are engaged,
An anchor assembly comprising the leg member and means on at least one of the anchor member for facilitating movement of the anchor member from the first position to the second position. 3. Means for facilitating movement of the anchor member towards the second position includes: advancing the anchor member distally or pulling the leg member proximally. The anchor assembly of claim 2, wherein the anchor assembly is at least one shelf shaped and sized to engage the distal end of at least one of the leg members when opened. 4. The anchor assembly of claim 3, wherein the shelf forms an acute angle with the at least one leg member when the anchor member is in the first position. 5. The distal end of at least one of the leg members may be configured such that the anchor member is advanced distally along the leg member from the first position or the leg member is withdrawn proximally. The anchor assembly of claim 4, wherein the anchor assembly is shaped to engage the shelf when opened. 6. A distal end of at least one of the leg members comprises a bevel in a direction to engage the shelf, the anchor member being moved distally from the first position when the anchor member is advanced distally. The anchor assembly according to claim 5, wherein the anchor assembly is configured to rotate toward the second position. 7. The anchor member is located on a side surface of the anchor member opposite to the first shelf, and has the same shaped shelf in the same angle direction with respect to the leg member. Item 7. The anchor assembly according to item 6. 8. The second leg member includes an end portion having an inclined surface that is the same as the angle of the second shelf, and the anchor member is advanced from the first position in a distal direction, or the leg portion. The end of the second leg member engages the second shelf while the distal end of the leg member engages the first shelf when the member is withdrawn proximally, and the engagement The anchor assembly according to claim 7, wherein the anchor member is configured to rotate toward the second position. 9. The distal end of at least one of the leg members pivots from the first position to the second position by engagement of the anchor member and the distal end of the leg member. The anchor assembly of claim 8, wherein the anchor assembly is shaped. 10. Each of the leg members engages the anchor member when the anchor moves distally or at least one of the leg members moves proximally,
10. An anchor assembly as claimed in claim 9 including end means for pivoting the anchor from the first position towards the second position. 11. An anchor assembly for retaining a fastening member within an opening formed in a support means having at least one distal side, the anchor assembly comprising at least (a) at least two adjacently disposed members. An elongated leg member,
(B) Between a first position for accommodating the leg member, movably supporting an anchor member on the leg member, and aligning the anchor member with the leg member, and a second position crossing the leg member. An anchor member forming at least one hole on each side for movement, and (c) when the anchor member is advanced distally from the first position or the leg member is withdrawn proximally. An anchor assembly comprising means for engaging the anchor member and forming a sloping distal end of each leg member for pivoting the anchor member toward the second position. 12. An anchor assembly for retaining a clamping member within an opening formed in a support wall having at least one distal side, the anchor assembly comprising: (a) at least two elongate wires disposed in adjacent relationship. Leg member, (b)
An anchor member movably supported on the leg member and pivotable between a first position aligned with the leg member and a second position across the leg member, the anchor member being an elongated clamp An opening for receiving a member is formed, the anchor member has a hole for receiving the tightening member, and
(C) facilitates movement of the anchor member from the first position toward the second position when the anchor member advances in the distal direction or when the leg member is pulled out in the proximal direction. Means on at least one of the anchor member and the leg member, and (d) a collar member sized and shaped to be supported by the proximal end of the leg member and insertable into the opening in the wall. An anchor assembly comprising: a collar member formed with a hole that matches a hole of the anchor member to facilitate receipt of the elongated fastening member. 13. The anchor assembly of claim 12, wherein a thread is formed in a hole of the anchor member to accommodate an elongated screw fastening member therein. 14. The anchor assembly according to claim 13, wherein the tightening member is a screw bolt. 15. The anchor assembly according to claim 14, wherein the screw hole of the anchor member is disposed at substantially the same position as the rotation axis of the anchor member. 16. The anchor assembly of claim 15, wherein the anchor member is made of at least one of steel and plastic. 17. The collar member of claim 16, wherein the collar member has a circular hole for accommodating an elongated tightening member, and the tightening member has a cross section similar to the circular hole. Anchor assembly. 18. The wire-shaped leg member is slidably disposed in a hole formed in the collar member to allow the leg member to move distally and proximally. 18. The anchor assembly of claim 17, wherein: 19. A sloping portion that engages the distal end of the anchor member when the anchor member is advanced distally or the leg member is withdrawn proximally. And the engagement of the anchor member causes the anchor member to rotate from the first position toward the second position by linear movement and rotation of the anchor member with respect to the leg member. The anchor assembly of claim 18, wherein: 20. The anchor of claim 19, wherein the anchor member has at least two elongated holes for accommodating the leg member and slidably and pivotally supporting the anchor member. Assembly. 21. The anchor assembly of claim 20, wherein the anchor member defines opposite tracks for slidably receiving the elongated leg member. 22. Each track comprises two parts, a first part of which extends over a portion of the length of the anchor member and a second part of which is opposite the first part, 22. The anchor assembly of claim 21, which extends over the remainder of the length of the anchor. 23. The anchor assembly of claim 22, wherein the anchor member comprises at least two element members attached to each other. 24. The anchor assembly of claim 23, wherein the element members of the anchor member are attached to each other along an intermediate surface. 25. The anchor assembly according to claim 24, wherein the leg member is a wire-shaped member having an arcuate cross-sectional shape. 26. The track portion of the anchor member has an arcuate cross-section capable of accommodating the wire-like leg member and slidably supporting the anchor member. Anchor assembly described in. 27. The anchor assembly of claim 26, wherein the anchor member is at least one of a rectangular shape and a square shape. 28. The anchor assembly of claim 27, wherein the anchor member has a hole for receiving the tightening member. 29. The elongated opening formed in the anchor member is substantially oval shaped and is formed at the intersection of the leg support tracks on opposite sides of the anchor member. An anchor assembly according to item 28. 30. The first track portions on both sides of the anchor member have different lengths from the second track portions on both sides of the anchor member, thereby forming a pivot shaft for pivoting the anchor member. 30. An anchor according to claim 29, wherein the center of gravity of the anchor member is spaced from the pivot axis and causes the anchor member to pivot about the axis under gravity. Assembly.