JPH10184632A - Wood screw - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily adjust the surface level of thread-fastened wood or the like. SOLUTION: A wood screw is composed of a screw body 2 and an annular screw 3. The screw body 2 consists of a threaded part 21 with a thread 21a, a neck part 22 concentrically extended from the base end side of the threaded part 21, and a head part 23 provided at the end part of the neck part 22. The annular screw 3 is loosely fitted in a slip-off stop state to the neck part 22 of the screw body 2 and having a thread 31a on the outer peripheral surface. The annular screw 3 is mounted on the screw body 2 so as to be corotated with the rotation of the screw body 2 around its axis in a fastening direction but not to be corotated with the rotation of the screw body 2 around its axis in a loosening direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood screw suitable for adjusting the surface level of wood or the like to be screwed.

[0002]

2. Description of the Related Art Generally, wood screws are used to join a material such as wood to another member. When the wood screw is screwed into the screw, a screw formed in a screw body cuts into an internal structure such as wood. Once they are joined, they have the advantage that they are less likely to separate from other joined members than when using nails. In addition, wood screws are useful as a joining means for wood and the like because they can easily perform joining and separating operations using a screwdriver and can perform joining processing reliably. It is frequently used in products.

[0003]

The conventional wood screw, which has only a thread formed on the outer peripheral surface of a tapered screw body, cannot be used. In the state where the members are joined with wood screws, the surface level of the wood is not at a desired level, which may cause various inconveniences.

[0004] In such a situation, for example, when a door is installed on a frame attached to a building via a supporting square, the supporting square which is screwed to the frame is also inclined because the frame is inclined. Therefore, there is a case where the door screwed to the supporting square member is inclined and the door cannot be opened and closed smoothly. In addition, in the state where the beam supporting the floorboard of the building is not installed horizontally, the floorboard is screwed on it and the floorboard is inclined, which makes it impossible to arrange furniture on the floor horizontally or on the floor. A case where the placed circular object rolls can be cited. Further, there may be a case where members to be joined by the wood screws are mutually displaced in the direction in which the joining surface extends, whereby one member is out of position with respect to the other member.

[0005] In such a case, conventionally, the frame and the crosspiece once constructed are removed and then re-constructed properly. However, not only must extra labor be used for this, but also the construction period is delayed. It was a cause, and improvement of this was expected.

SUMMARY OF THE INVENTION The present invention has been made to meet the above-mentioned demands, and can easily adjust the surface level of screwed wood or the like, and can provide a structure to which wood or the like is screwed. It is an object of the present invention to provide a wood screw that can fundamentally eliminate the need for repair work and thereby reduce the construction cost of various structures and shorten the construction period.

[0007]

According to a first aspect of the present invention, there is provided a wood screw comprising: a thread having a thread; a neck extending concentrically from a proximal end of the thread; and an end of the neck. A screw body consisting of a head provided in the part, and an annular screw having a screw thread on the outer peripheral surface, which is loosely fitted to the neck of the screw body in a state where it is prevented from falling off, and the annular screw is The screw body is attached to the screw body so as to rotate together with rotation about the axis in the fastening direction and not to rotate together with rotation around the axis in the loosening direction. .

[0008] According to this wood screw, when a screwed member made of wood or the like is screwed to a structure such as a pillar, a bar or a frame, the screw body is screwed into the screwed member stacked on the structure. As a result, the annular screw rotates in the same direction as the wood screw rotates in the fastening direction, so that the annular screw is screwed into the threaded member simultaneously with the screw body. By setting the length of the annular screw in the axial direction shorter than the thickness of the screwed member, the screw of the screw body is fixed in a state where the screwed member is fixed to the structure by the wood screw. The ridges are buried in the structure,
The annular screw is embedded in the threaded member. If the wood screw is loosened in this state, the wood screw moves in the direction of coming out of the structure, whereas the annular screw does not rotate itself while allowing the screw body to rotate around the axis of the neck of the screw body. Moves through the annular screw in accordance with the movement of the screw body, thereby making it possible to adjust the level of the screwed member.

According to a second aspect of the present invention, there is provided a wood screw according to the first aspect, wherein the annular screw is loosely fitted to the neck so as to be slightly movable in an axial direction, and the screw main body has a head. The annular screw has a protruding stopper on a contact surface with an edge of the annular screw. The annular screw has a notch groove externally fitted to the stopper on the edge. The groove shape is set so that the screw body is engaged with the stopper when the screw body is turned in the fastening direction, and the engagement is released when the screw body is turned in the loosening direction. It is assumed that.

According to this wood screw, by turning the screw body in the fastening direction using a tool such as a screwdriver, the stopper attached to the head engages with the cutout groove of the annular screw. Co-rotates with the screw body. Conversely, when the screw body is turned in the loosening direction, the engagement of the stopper with the notch groove is released, whereby the screw body rotates but the annular screw does not rotate.

According to a third aspect of the present invention, there is provided a wood screw according to the first aspect, wherein the annular screw is loosely fitted to the neck so as to be slightly movable in an axial direction, and the proximal end is provided with the annular screw. The head of the screw body has a head immersion part that can be immersed, and a screwdriver part that can turn an annular screw independently of the screw body is formed in the head immersion part. .

According to this wood screw, in addition to the effect of the first aspect of the present invention, it becomes possible to turn the annular screw once screwed in from the outside so as to rotate together with the screw body.

According to a fourth aspect of the present invention, there is provided a wood screw having a thread portion having a thread, a neck portion extending concentrically from a proximal end side of the thread portion, and a head provided at an end of the neck portion. And a ring screw having a thread on its outer peripheral surface, which is loosely fitted to the neck of the screw body in a state where it is prevented from coming off. The head of the main body has a head immersion portion that can be immersed, and a screwdriver portion that can turn an annular screw independently of the screw main body is formed in the head immersion portion.

According to this wood screw, the tool is turned in the tightening and loosening direction while the operating end of the tool such as a screwdriver is fitted into both the screw driver of the annular screw and the minus slot of the head of the screw body. This allows the screw body and the annular screw to rotate integrally with each other, whereby the wood screw can be screwed in and out without the screwed member and the structure being separated from each other. Then, by turning only the screw body of the wood screw once screwed in the loosening direction, the screw body moves forward and reverse with respect to the structure in a state where the rotation of the annular screw is stopped, whereby the material to be screwed is moved with respect to the structure. Contact.

A wood screw according to a fifth aspect of the present invention is a screw having a screw, a neck concentrically extending from a proximal end of the screw, and a head provided at an end of the neck. And a screw main body support member that is loosely fitted in the neck portion of the screw main body in a state where the screw main body is prevented from coming off, and the screw main body support member is located at an eccentric position with respect to its axis. The screw body is loosely fitted to the screw body so that the axis of the screw body is located, and a support member turning portion capable of turning the screw body support member around the axis is formed at the top. is there.

According to this wood screw, the screw body supporting member is used to cover the predetermined thread of the screwed member when the screwed member made of wood or the like is screwed to a structure such as a pillar, a crosspiece or a frame. By screwing the screw body into the structure after fitting into the hole, the screwed member is attached to the structure, and the screw body support member is positioned eccentrically with respect to its axis. Since the screw body is loosely fitted to the screw body such that the axis of the screw body is positioned, the screwed member is turned around the axis of the screw body by rotating the screw body support member, and the eccentricity is increased. It becomes possible to correct the position of the structure by moving on the circumference having the radius as the distance.

A wood screw according to a sixth aspect of the present invention is the wood screw according to the fifth aspect, wherein an annular detent is provided on an outer peripheral surface of the screw main body supporting member. .

According to this wood screw, the screw body supporting member is prevented from coming off from the screwed material by the detent, and the same operation as the wood screw according to the above-mentioned claims 1 and 4, ie, the screwed material is achieved. The effect that the dimension of the gap between the object and the structure can be adjusted can be obtained.

The wood screw according to claim 7 of the present invention is the wood screw according to claim 5 or 6, wherein the screw body support member is rotated around the axis while movement in the axis direction is restricted. A cover ring that is freely fitted to the outside is provided, and the detent is provided on an outer peripheral surface of the cover ring.

According to this wood screw, the screw body supporting member is easily rotated about the axis within the cover ring in a state where the screw body supporting member is press-fitted into the screw hiding of the screwed member via the cover ring. This facilitates adjustment of the position of the threaded member with respect to the structure.

[0021]

FIG. 1 is an exploded perspective view showing a first embodiment of a wood screw according to the present invention, partially cut away, and FIG. 2 is an assembled perspective view thereof. FIG. 3 is a partially sectional front view of the wood screw shown in FIG. As shown in these figures, the wood screw 1 includes a screw main body 2 and an annular screw 3 mounted on the screw main body 2. The screw body 2 includes a threaded portion 21 having a thread 21a formed on the surface of a long and thin cylindrical body, a columnar neck portion 22 extending concentrically on the base end side of the threaded portion 21, A head 23 provided at the end of the neck 22.

The thread portion 21 is provided with a so-called right-hand thread which is directed toward the distal end by following the thread 21a clockwise from the proximal end side. By turning the screw main body 2 clockwise (that is, by turning it in the fastening direction) in the contact state, the screw main body 2 is guided by the thread 21a and screwed into wood or the like. The neck portion 22 has a constricted portion 221 on the distal end side, the outer peripheral surface of which is recessed annularly.

The head 23 has a plus groove 23a recessed in the front. The tip of a screwdriver is fitted into the plus groove 23a with the tip of the screw body 2 abutting against wood or the like. By turning the screwdriver clockwise, the screw 21 guided by the screw 21a is screwed (fastened) into wood or the like, and by turning counterclockwise, the screw 21 is pulled back (relaxed). It has become so. In addition, as for the above-mentioned plus groove 23a, one of the two cross-shaped grooves is the head 23.
, So that a flathead screwdriver can be used to tighten and loosen the wood screw 1.

The annular screw 3 has a fitting hole 31 extending in the axial direction and a thread 31a forming a right-hand thread on the outer peripheral surface. Such an annular screw 3
Has a length dimension in the axial direction slightly shorter than the length dimension of the neck 22, and the diameter of the fitting hole 31 is slightly larger than the outer diameter of the head 23, Thus, in the state shown in FIG. 1, by moving the annular screw 3 in the direction of the arrow, the annular screw 3 can reach the neck 22 via the thread 21.

Then, as shown in FIG. 2, the annular screw 3 is externally fitted to the screw main body 2, and after the annular screw 3 reaches the neck 22 of the screw main body 2, the peripheral edge on the distal end side is directed toward the center. By caulking, a caulked portion 32 is formed at the outer peripheral edge portion on the distal end side of the annular screw 3, and the caulked portion 32 is attached to the neck 2.
2 by fitting into the constricted portion 221.
The shaft is prevented from moving in the axial direction while rotation about the axis is allowed.

On the surface of the head 23 opposite to the surface on which the plus groove 23a is provided, a plurality of stoppers 24 projecting toward the tip end at equal pitches in the circumferential direction are provided. On the other hand, the annular screw 3 has a notch groove 33 formed at the base end side edge thereof so as to correspond to each of the stoppers 24, and the distal end edge of the annular screw 3 contacts with wood or the like. By screwing the screw main body 2 into wood or the like by twisting the head 23 in the contact state, each stopper 24 is fitted into the corresponding notch groove 33.

FIG. 4 is a partially enlarged front view illustrating the relative positional relationship between the stopper 24 and the notch groove 33.
(A) shows a state in which the stopper 24 is fitted into the notch groove 33, and (B) shows a state in which the stopper 24 is coming out of the notch groove 33.

As shown in these figures, the stopper 24 has a triangular shape in a front view, and has a cliff 24a whose end face extends in the axial direction at the left end in FIG.
An inclined edge 24b having a gentle inclination with respect to a direction perpendicular to the axis is formed on the right side of the precipitous part 24a, while the notch groove 33 is formed with the precipitous part 24a of the stopper 24 and the inclined part 24b. Cliff 33 corresponding to edge 24b
a and the inclined edge portion 33b, respectively, as shown in FIG.
As shown in the figure, when the stopper 24 is fitted in the notch groove 33, the precipitous portion 24 a of the stopper 24 is cut off while the screw body 2 is turned clockwise as shown by the arrow. It abuts against the portion 33a, so that the annular screw 3 rotates together with the screw body 2.

Conversely, when the screw body 2 is turned counterclockwise as shown by the arrow in FIG.
4b slides on the inclined edge 33b of the notch groove 33, whereby only the screw body 2 rotates with the annular screw 3 remaining in the wood or the like.

FIGS. 5A and 5B are explanatory diagrams for explaining the operation of the wood screw 1 of the first embodiment. FIG. 5A shows a state immediately before the wood screw 1 is screwed into the frame and the column, and FIG. Screwed into the frame and support, (c) wood screw 1
Respectively shows a state in which a gap is formed between the frame body and the support by the reverse rotation of. That is, in the example shown in FIG. 5, the wood screw 1 adjusts the assembled state of the frame 5 when the frame 5 is interposed between the door and the column 4 when the door is attached to the column 4 of the building. It is used to do.

When fixing the frame 5 to the column 4, the frame 5 is first brought into close contact with the surface of the column 4 as shown in FIG. Next, the tip of the screw body 2 is pushed up at the center of the screw hiding 51 that is recessed at a predetermined portion of the frame 5, and in this state, the tip of the driver D is fitted into the plus groove 23 a of the head 23. Then, the driver D is operated clockwise as shown by the arrow. By doing so, the wood screw 1 is screwed into the support 4 through the frame 5 while the screw main body 2 is guided by the thread portion 21, and in particular, in a state where the annular screw 3 is embedded in the frame 5, As shown in FIG. 5B, the column 4 and the frame 5 are in a state where they are connected to each other.

Next, the state of assembly of the frame 5 in the state of (b) in FIG. 5 is inspected, and as a result of the inspection, if the state of assembly of the frame 5 is poor and adjustment is necessary, (FIG. 5) C)
As shown by the arrow in FIG. 5, the screwdriver 2 is operated counterclockwise to pull the screw body 2 back. By doing this,
Since the screw body 2 rotates around the axis in the annular screw 3 embedded in the frame 5 and is pulled back from the support 4, the annular screw 3 moves away from the support 4 with the movement of the screw body 2. To the frame 5 which is integrated with the annular screw 3.
Also move in a direction away from the support 4. By adjusting the amount of movement of the frame 5 from the support 4 by the amount of rotation of the screw main body 2, the problem of the construction of the frame 5 can be easily corrected.

FIG. 6 is an exploded perspective view showing a second embodiment of the wood screw according to the present invention, and FIG. 7 is an assembled perspective view thereof. FIG. 8 is a partially sectional front view of the wood screw shown in FIG. As shown in these figures, the wood screw 1a according to the second embodiment includes a screw body 2a including a thread portion 21, a neck portion 22a and a head portion 23, an annular screw 3a loosely fitted to the neck portion 22a, and And an E-ring 30 for keeping the annular screw 3a loosely fitted to the neck 22a.

The thread portion 21 and the head 23 of the second embodiment
Is the same as that of the first embodiment, but FIGS.
As shown in the figure, the neck portion 22a is provided with annular thin grooves 25 which are recessed annularly on the outer peripheral surface on the tip side instead of the constricted portion 221, and the E-ring 30 is engaged with these annular thin grooves 25. This prevents the annular screw 3a loosely fitted to the neck 22a from falling off.

The annular screw 3a of the second embodiment has a first fitting hole (head immersion part) whose diameter is slightly larger than the outer diameter of the head 23.
31b, and a second fitting hole 31c having a diameter smaller than the outer diameter of the head 23 and slightly larger than the outer diameter of the neck 22a, the annular screw 3a is loosely fitted to the neck 22a, and The head 23 is surrounded by the first fitting hole 31b while the movement in the axial direction is restricted by the E-ring 30. In addition, a pair of U-shaped grooves (screwdrivers) 31d that are recessed in the axial direction at the point symmetrical positions of the axial center are provided at the proximal edge portion of the annular screw 3a, Inserting a screwdriver tooth into these U-shaped grooves 31d allows the annular screw 3a to be turned around the axis.

The notch groove 33 of the first embodiment corresponding to the stopper 24 of the head 23 is provided at the distal end side of the first fitting hole 31b and at the base end side edge of the second fitting hole 31c. A notch groove 330 similar to that described above is provided. Therefore, with the screw body 2a turned clockwise, the stopper 24
Is fitted into the notch groove 330 and the annular screw 3a rotates together, and by turning the screw body 2a counterclockwise, the stopper 24 comes out of the notch groove 330, whereby the annular screw 3a is removed. It can be left inside wood or the like.

When the wood screw 1a of the second embodiment is used, a screw hole for screwing the annular screw 3a is provided in advance at a screwing position on the surface of wood or the like to be screwed. Is preferred. By doing so, the annular screw 3 whose diameter is remarkably larger than that of the thread portion 21 is formed.
a can be easily embedded in wood or the like.

According to the wood screw 1a of the second embodiment, in addition to the operation of the wood screw 1 of the first embodiment, the edge of the annular screw 3a at the base end side is made of wood while the wood screw 1a is screwed into wood or the like. And the like, and the exposed edge of the annular screw 3a has a pair of U
Since the U-shaped grooves 31d are provided, these U-shaped grooves 31d
By inserting the tooth of a flathead screwdriver into d and turning it counterclockwise, and simultaneously turning the head 23 with the same screwdriver, the annular screw 3a can be extracted from wood or the like with the screw body 2a. Thus, the wood screw 1a can be taken out of the wood or the like without destroying the wood or the like, and the wood or the like and the wood screw 1a can be reused.

FIG. 9 is an exploded perspective view showing a third embodiment of a wood screw according to the present invention, and FIG. 10 is an assembled perspective view thereof. FIG. 11 is a partially sectional front view of the wood screw shown in FIG. As shown in these figures, the wood screw 1b according to the third embodiment includes a screw main body 2b including a thread 21, a neck 22b, and a head 23, and a screw main body support member 3b that is loosely fitted to the neck 22b. And a cover ring 3c which is fitted on the screw body support member 3b in a sliding contact state.

The thread 21 and the head 23 of the third embodiment
Is similar to that of the first and second embodiments, and a neck 22a is formed immediately below the head 23 in FIG. 9 and is similar to the neck of the first embodiment. The lower part 221 in FIG. 9 is formed of a lower constricted flange 222. On the top surface of the head 23, a Phillips slot 23a for a driver is recessed.

The screw body support member 3b is formed of a cylindrical body made of synthetic resin. The screw main body support member 3b has an eccentric hole 34 formed at a position eccentric with respect to the axis and penetrating in the direction in which the axis extends. This eccentric hole 34 is provided with a concentrically provided upper surface side hole 34a in FIG.
And a rear side hole 34c at the lower part. The front side hole 34a has a diameter of the head 2 of the screw body 2b.
The rear side hole 34c is set slightly larger than the diameter of the largest diameter portion of the flange portion 22 of the screw body 2b, while the intermediate hole 34b is set slightly larger than the three diameters. The diameter of the thinnest portion is formed in a funnel-shaped constriction, and the diameter of the narrowed portion is reduced by the constricted portion 22 of the screw main body 2b.
The size is set slightly larger than the diameter of No. 1.

Then, as shown by the arrow in FIG. 9, the screw main body 2b is inserted into the eccentric hole 34 from the distal end side of the thread portion 21, and when the flange 222 reaches the intermediate hole 34b, the flange 2
22 is press-fitted into the intermediate hole 34b.
The inner diameter b is elastically deformed so as to expand, and the flange 222 passes through the intermediate hole 34b, whereby the constricted portion 221 is fitted into the intermediate hole 34b. Neck 221
Is inserted into the intermediate hole 34b once, the screw body 2b
The head 23 and the flange 222 are blocked by the edge of the intermediate hole 34b so as not to fall out of the eccentric hole 34.

On the top surface of such a screw main body support member 3b, a minus groove (support member turning portion) 35 for a minus screwdriver, which traverses in the radial direction, is recessed. The cover ring 3 is provided on the outer peripheral surface of the screw body support member 3b.
An annular groove 36 for mounting c is provided, and an annular circular groove 36a having an arc-shaped cross section is formed at the bottom of the annular groove 36.

The cover ring 3c is formed by injection molding using a tough and durable synthetic resin as a raw material. As shown in FIG. 9, the cover ring 3c is composed of a first arc member 37a and a second arc member 37b, each of which has an arc shape in plan view in a state where the cylinder is divided into two along the axis. . The length of the cover ring 3c is set to be slightly shorter than the groove width of the annular groove 36 of the screw body support member 3b.

Each of the arc members 37a and 37b has a joint portion 37c in which edges parallel to the axis are joined to each other. Until the arc member 37a and 37b are mounted on the screw main body supporting member 3b, the joint portion 37c is centered. In this state, after one of the first circular body 37a and the second circular body 37b is fitted into the annular groove 36, the other is closed, so that the cover ring 3c is inserted into the annular groove 36. It is designed to be attached.

Then, the joining portion 37c of the first arc-shaped body 37a
A fitting groove 37d extending in the axial direction is formed in the end face on the opposite side from the fitting groove 37d, while the fitting face 37c of the second arcuate body 37b on the opposite side to the joint portion 37c is fitted in the fitting groove 37d. A mating projection 37e is provided so that the fitting projection 37e fits into the fitting groove 37d in a state where the arcs 37a and 37b are closed to each other so that the closed state of the arcs 37a and 37b is stabilized. ing.

On the inner peripheral surface of such a cover ring 3c, a band-shaped annular arc-shaped ridge 37f corresponding to the annular arc-shaped groove 36a recessed at the bottom of the annular groove 36 of the screw main body support member 3b protrudes. When the cover ring 3c is mounted in the annular groove 36, the circular arc ridge 37f fits into the circular arc groove 36a, whereby the mounting state of the cover ring 3c to the screw body support member 3b is stabilized. The positioning of the cover ring 3c in the annular groove 36 is ensured.

An annular detent 37g having a right-angled triangular cross section as viewed in cross section is protrudingly provided on the outer peripheral surface of the cover ring 3c, so that the cover ring 3c can easily be pulled out while being pressed into a predetermined hole. I try not to.

When the wood screw 1b is disassembled as shown in FIG. 9, the screw main body 2b is press-fitted into the eccentric hole 34 of the screw main body support member 3b, and the open cover ring 3c is connected to the annular body of the screw main body support member 3b. It is completed by mounting it in the groove 36 and closing it (the state shown in FIG. 10).

In the wood screw 1b thus obtained, the screw portion 21 of the screw body 2b is screwed to the column 4 (FIG. 5), and the screw body support member 3b is press-fitted into the frame 5.
Turning the screw body 2b to adjust the gap size between the support 4 and the frame 5 is the same as that of the wood screws 1 and 1a in the first and second embodiments described above. Third
The wood screw 1b of the embodiment has a function of correcting the position of the support 4 in the direction in which the contact surface between the support 4 and the frame 5 extends in addition to the above-described gap dimension adjusting function. Hereinafter, the position correcting function will be described with reference to FIG.

FIG. 12 is an explanatory view for explaining the operation of the wood screw 1b of the third embodiment. FIG. 12 (a) shows that there is a lateral displacement r1 between the support 4 and the frame 5 in the lateral direction. Status,
(B) shows a state in which the above-described positional deviation has been corrected by r2.

First, in the state shown in FIG. 12A, the screw main body support member 3b is pressed into the screw hiding 51 formed in the surface of the frame 5 with the screw main body 2b positioned at the uppermost position. Subsequently, the end of the screwdriver is fitted into the plus groove 23a of the head 23 of the screw main body 2b to perform a fastening operation, so that the frame 5 is attached to the support 4. In this state, it is assumed that a displacement dimension r1 is formed between the support 4 and the frame 5 in the lateral direction.

In this state, when the tip of a flathead screwdriver is fitted into the minus groove 35 of the screw body support member 3b and the screw body support member 3b is turned clockwise, for example, 90 °,
The screw main body 2b provided at an eccentric position with respect to the axis of the screw main body supporting member 3b relatively rotates around the axis by 90 ° clockwise without changing its position with respect to the support column 4. Due to this relative rotation, the axis of the screw main body supporting member 3b rotates 90 ° clockwise around the axis of the screw main body 2b, and as a result of this rotation, as shown in FIG. The position is corrected leftward by the distance r2 between the respective axes.

If necessary, the wood screw 1b of the third embodiment
According to the above, by turning the screw body support member 3b,
The position of the frame body 5 can be corrected so that the axis of the screw body supporting member 3b follows the column 4 along the circumference of the radius r2 around the axis of the screw body 2b.

The present invention is not limited to the above embodiment, but includes the following contents.

(1) In the second embodiment, the neck 22a is loosely fitted to the neck 22a.
The ring screw 3a is prevented from coming off by mounting the E-ring 30 on the front end, but instead of this, the tip side of the annular screw 3a is held back by caulking similarly to the first embodiment. Is also good.

(2) In the second embodiment described above, a notch groove 330 is formed at the base end side edge of the second fitting hole 31c of the annular screw 3a. By inserting the stopper 24 of the head 23, the annular screw 3a rotates in the same direction as the clockwise rotation of the head 23.
Is not essential and need not be provided. However, when the notch groove 330 is not provided, it is necessary to screw the annular screw 3a at the same time when screwing the screw body 2a. However, this operation is easily performed because the U-shaped groove 31d is provided in the annular screw 3a. It is feasible.

(3) In the third embodiment, the cover ring 3c is provided on the outer periphery of the screw main body support member 3b.
The screw body support member 3b is designed to be easily rotated in a state of being fitted into the screw cover 51 via the cover ring 3c. However, in the present invention, the installation of the cover ring 3c is not essential and is not particularly provided. Is also good. Instead, when the cover ring 3c is not provided, the screw body support member 3
Since b is directly pressed into the screw cover 51, it is necessary to turn the screw body support member 3b with a very large force. However, once the position is corrected, the screw body support member 3b is not easily turned. Thus, the position correction state of the frame 5 is stabilized.

(4) In the third embodiment described above, the thread portion 21 is immediately provided from the lower end of the neck portion 22b of the screw body 2b.
Is extended, but the proximal end of the thread portion 21 and the neck portion 22b
A cylindrical portion having no thread may be interposed between it and the tip side. By locating this cylindrical portion in the frame 5, the screw body 2b can be prevented from moving in the axial direction with respect to the frame 5 even when it is turned.

[0060]

According to the wood screw of the first aspect of the present invention, the annular screw which is loosely fitted to the neck of the screw main body so as to be movable in the axial direction in a state where it is prevented from falling off, in the fastening direction of the screw main body. In order to rotate together with the rotation around the axis of the axis and not to rotate together with the rotation around the axis in the relaxation direction,
When screwing a threaded member made of wood or the like to a structure such as a pillar, a bar, or a frame, screwing the screw body into the threaded member laminated on the structure, in the fastening direction of the wood screw Due to the co-rotation of the annular screw due to the rotation of the screw, the annular screw can be screwed into the screwed member simultaneously with the screw body.

By setting the length of the annular screw in the axial direction to be shorter than the thickness of the screwed member, the screwed member is fixed to the structure by the wood screw so as to be screwed. The thread portion of the main body can be embedded in the structure, and the annular screw can be embedded in the threaded member. If the wood screw is loosened in this state, the wood screw moves in the direction of coming out of the structure, whereas the annular screw does not rotate itself while allowing the screw body to rotate around the axis of the neck of the screw body. Is
The screw body is moved via the annular screw in accordance with the movement of the screw body, whereby the level of the screwed member can be adjusted.

As described above, according to the wood screw of the first aspect, by tightening and loosening only the screw body in a state where the screwed member is screwed to the structure, the screwed member is attached to the structure. In order to move away from the contact, the level of the threaded material, that is, the simple operation of tightening and loosening the screw body,
It is possible to adjust the separation dimension to the structure,
Unlike the related art, there is no need to fundamentally repair the structure, and the construction cost can be reduced and the construction period can be shortened accordingly.

According to the wood screw of the second aspect of the present invention,
The head of the screw body is provided with a protruding stopper that abuts against the edge of the annular screw, and the annular screw is provided with a notch groove that fits over the stopper at the edge portion. The screw body is turned in the fastening direction by using a tool such as a screwdriver because the groove shape is set so that it engages with the stopper when it is turned in the fastening direction, and is released when it is turned in the loosening direction. As a result, the stopper attached to the head engages with the notch groove of the annular screw, whereby the annular screw rotates together with the screw body. Is disengaged, whereby the screw body rotates but the annular screw does not rotate.

According to the wood screw of the third aspect of the present invention,
The annular screw is loosely fitted to the neck so as to be slightly movable in the axial direction, and has a head immersion portion on the base end side where the head of the screw body can immerse. Since the screwdriver portion for turning the annular screw is formed independently of the screw main body, in addition to the operation of the invention described in the above-mentioned claim 1, the once screwed annular screw is turned out from the outside so as to rotate together with the screw main body. This allows the annular screw to be taken out without breaking the threaded member.

According to the wood screw of claim 4 of the present invention,
The annular screw has a head immersion part on the base end side where the head of the screw body can be immersed, and a screwdriver part that can rotate the annular screw independently of the screw body is formed in the head immersion part, By turning the tool in the tightening and loosening direction with the operating end of the tool such as a screwdriver fitted into both the screwdriver of the annular screw and the minus slot on the head of the screw body, the screw body and the annular screw Can rotate together, so that the wood screw can be screwed in and out in a state where the screwed member and the structure do not come and go. Then, by turning only the screw body of the wood screw once screwed in the loosening direction, the screw body moves forward and reverse with respect to the structure in a state where the rotation of the annular screw is stopped, and thereby the screwed material is moved with respect to the structure. Can be separated.

According to the wood screw of claim 5 of the present invention,
A screw body support member is provided which is loosely fitted in the neck of the screw body in a state where it is prevented from coming off, and the screw body is arranged such that the axis of the screw body is located at a position eccentric to the axis of the screw body support member. When loosely screwed to a structure such as a pillar, a bar, a frame, etc.
By inserting the screw body support member into a predetermined screw hiding hole of the screwed material and then screwing the screw body to the structure, the screwed material is attached to the structure, By rotating the screw body supporting member, the screwed member can be moved on a circumference centered on the axis of the screw body and having the above-mentioned eccentric distance as a radius to correct the position with respect to the structure. Therefore, the correction range can be expanded.

According to the wood screw of the sixth aspect of the present invention,
An annular detent is provided on the outer peripheral surface of the screw main body supporting member, so that the screw main body supporting member is prevented from coming off from the screwed member by the detent.
The same operation as that of the described wood screw, that is, the operation of adjusting the gap size between the threaded member and the structure can be obtained.

According to the wood screw of claim 7 of the present invention,
The screw body support member is provided with a cover ring that is fitted around the axis so as to be rotatable around the axis while the movement in the axial direction is restricted. The screw body support member can be easily rotated around the axis in the cover ring in a state where the screw body is press-fitted, thereby easily adjusting the position of the screwed member with respect to the structure. Can be.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view, partially cut away, showing a first embodiment of a wood screw according to the present invention.

FIG. 2 is an assembled perspective view of the wood screw shown in FIG. 1;

FIG. 3 is a partial sectional front view of the wood screw shown in FIG. 2;

FIGS. 4A and 4B are partially enlarged front views illustrating a relative positional relationship between a stopper and a notch groove, wherein FIG. 4A is a state in which the stopper is fitted into the notch groove, and FIG. Each state of being coming out of the groove is shown.

FIGS. 5A and 5B are explanatory diagrams for explaining the operation of the wood screw according to the first embodiment, wherein FIG. 5A shows a state immediately before the wood screw is screwed into the frame and the support, and FIG. (C) shows a state in which a gap is formed between the frame body and the support by the reverse rotation of the wood screw.

FIG. 6 is an exploded perspective view, partly cut away, showing a second embodiment of a wood screw according to the present invention.

FIG. 7 is an assembled perspective view of the wood screw shown in FIG. 6;

FIG. 8 is a partial sectional front view of the wood screw shown in FIG. 7;

FIG. 9 is an exploded perspective view showing a third embodiment of a wood screw according to the present invention.

FIG. 10 is an assembled perspective view of the wood screw shown in FIG. 9;

FIG. 11 is a partial sectional front view of the wood screw shown in FIG. 10;

FIGS. 12A and 12B are explanatory diagrams for explaining the operation of the wood screw according to the third embodiment. FIG. 12A shows a state in which there is a lateral displacement of r1 between the support and the frame, and FIG. , Respectively, shows a state in which the positional deviation has been corrected by r2.

[Explanation of symbols]

 1, 1a, 1b Wood screw 2, 2a Screw body 21 Thread 21a Thread 22, 22a Neck 23 Head 23a Plus groove 24 Stopper 24a Cliff 24b Inclined edge 25 Annular narrow groove 3, 3a Annular screw 3b Screw body support Member 3c Covering 30 E-ring 31 Fitting hole 31a Thread 31b First fitting hole (submerged part) 31c Second fitting hole 31d U-shaped groove (screwdriver) 32 Caulked part 33, 330 Notch groove 33a Cliff portion 33b Inclined edge portion 34 Eccentric hole 34a Surface side hole 34b Intermediate hole 34c Back side hole 35 Minus groove (support member turning portion) 36 Annular groove 36a Annular arc groove 37a First arc body 37b Second arc body 4 Post 5 Frame 51 Screw hidden

Claims (7)

[Claims] 1. A screw body comprising a thread having a thread, a neck concentrically extending from a proximal end of the thread, a head provided at an end of the neck, and a screw body. An annular screw which is loosely fitted to the neck of the main body in a state where it is prevented from falling off, and which has a thread on an outer peripheral surface thereof.
A wood screw mounted on the screw body so as to rotate together with rotation about the axis in the fastening direction of the screw body and not to rotate together with rotation around the axis in the loosening direction. 2. The annular screw is loosely fitted to the neck so as to be slightly movable in the axial direction, and the screw main body has a projecting surface formed on a contact surface of a head thereof with an edge of the annular screw. The annular screw has a notch groove on the end edge portion that fits externally to the stopper. The notch groove engages with the stopper when the screw body is turned in the fastening direction. The wood screw according to claim 1, wherein the groove shape is set so that the engagement is released when the screw body is turned in the loosening direction. 3. The annular screw is loosely fitted to the neck so as to be slightly movable in the axial direction, and has a head immersion portion on the base end side where the head of the screw body can be immersed. 2. The wood screw according to claim 1, wherein a screwdriver portion for turning an annular screw independently of the screw main body is formed in the head recessed portion. 4. A screw body comprising a screw having a screw, a neck concentrically extending from a base end of the screw, a head provided at an end of the neck, and a screw body. An annular screw which is loosely fitted to the neck of the main body in a state where it is prevented from falling off, and which has a thread on an outer peripheral surface thereof.
It has a head immersion part on the base end side where the head of the screw main body can be immersed, and a screwdriver part capable of turning an annular screw independently of the screw main body is formed in this head immersion part. And wood screws. 5. A screw body comprising a screw having a screw, a neck concentrically extending from a base end of the screw, a head provided at an end of the neck, and a screw body. A screw body support member that is loosely fitted in the neck of the main body while being loosely fitted, and the screw body support member is arranged such that the axis of the screw body is located at an eccentric position with respect to the axis thereof. A wood screw having a support member turning portion formed so as to be loosely fitted to the screw body and capable of turning the screw body support member around the axis at the top. 6. A wood screw according to claim 5, wherein an annular detent is provided on an outer peripheral surface of said screw main body supporting member. 7. A cover ring is provided on the screw body support member so as to be rotatable around the axis while movement in the axis direction is restricted, and an outer peripheral surface of the cover ring is provided on the outer peripheral surface of the cover ring. 7. The wood screw according to claim 5, wherein said detent is provided.