JP3217685B2 - Wood screw for wooden frame adjustment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood screw, and more particularly, to adjusting the distance between a wooden frame and an opening when a wooden frame such as a window or a door is fitted into an opening formed in a wall or the like of a building. The present invention relates to a wood screw for adjusting a wooden frame which is convenient.

[0002]

2. Description of the Related Art FIG. 5 is a view showing a state in which a wooden frame 3 is attached to an opening 2 formed in a wall 1 of a building or the like. As shown in the figure, the opening 2 may be slightly distorted due to errors in construction and errors in parts. Such an opening 2
When the rectangular wooden frame 3 is attached to and the four corners are fixed with the wooden screws 4, the wooden frame 3 is also attached without a right angle,
If the window or door 5 is attached in this state, the door 5
Does not enter, or a gap 6 is formed even if it does enter.

Therefore, when fixing the wooden frame 3 to the opening 2, the distance between the wooden frame 3 and the opening 2 is adjusted to make the wooden frame 3 horizontal and vertical so that the door 5 and the like can enter without any gap. Need to be

In response to such a request, Japanese Patent Publication No. Hei 7-919
No. 23 proposes a mounting method shown in FIGS. According to this, when fixing the wooden frame 3 to the opening 2 formed in the wall, a wood screw 4 as shown in FIG. 6 is used. The wood screw 4 is formed by forming a helical thread 4b for screwing on the tip side of a shaft 4a, and forming a plurality of flange-shaped thin rings 4d on the head 4c side of the shaft 4a.

As shown in FIG. 7, the wooden frame 3 comprises an inner wooden frame body 3a and a frame-like plywood portion 3b surrounding the main body. Then, a recess 3c is formed at a position near the corner inside the vertical bar of the wooden frame 3 shown in FIG. 5, and the wood screw 4 of FIG. 6 is screwed in from here. In FIG. 7, the wood screw 4 penetrates the wooden frame body 3a and the plywood part 3b, and is further screwed into the opening 2 of the wall 1. When the wood screw 4 is screwed into the opening 2, the thin ring 4d provides resistance to screwing, but the screwing force of the screw thread 4b overcomes and the thin ring 4d advances so as to bite into the wooden frame 3, as shown in FIG. The wooden frame 3 is screwed into the opening 2 until it comes into close contact with the opening 2.

Since the wood screws 4 are located at four positions as shown in FIG. 5, all the wood screws 4 are connected to the wooden frame 3 as shown in FIG.
When the wooden frame 3 is tightened so as to be in close contact with the opening 2, the wooden frame 3 is distorted similarly to the opening 2.

Then, when the screw 7 is loosened by the screwdriver 7 as shown in FIG. 8 while looking at the vertical of the vertical bar of the wooden frame 3 with a level or the like, the wooden frame 3 starts to separate from the opening 2. At the position where the wooden frame 3 is vertical, stop the rotation of the wood screw 4 and
When the adhesive or the like is filled in the gap 6 between the opening and the opening 2, the wooden frame 3 can be completely fixed to the opening 2.

[0008]

However, in the above prior art, when the wood screw 4 is loosened, the wood screw 4 is
At this time, the thin ring 4d tries to move the wooden frame 3 together to the right side in FIG. However, the bonding force between the thin ring 4d and the wooden frame 3 is weak, and the wooden frame 3 does not move, and the head 4c of the wood screw 4 floats by d as shown in FIG. For this reason, even if the interval s of the gap 6 is accurately set, the floating d of the head 4c is in an unstable state, which causes distortion in the wooden frame 3.

In order to prevent the head of the wood screw 4 from protruding inside the wood frame 3, a recess 3c must be formed in the wood frame 3.

The present invention has been made in view of the above-mentioned facts. When the wooden screw is loosened to adjust the distance between the wooden frame and the opening, the wooden frame does not protrude from the wooden frame. Key
It is intended to provide wood screws for conditioning.

Further, in addition to the above objects, the present invention provides a wooden screw for adjusting a wooden frame , in which the head is buried by itself without forming a concave portion in the wooden frame, and the mounting process can be simplified accordingly. The purpose is.

[0012]

Means for Solving the Problems The present invention to achieve the above object, shaft and head portion formed at one end of the shaft member
Between the wooden frame attached to the opening in the wall and the opening
In the wooden screw for adjusting the distance between the wooden frames , a screw thread for screwing into the opening through the wooden frame is provided at the tip end side of the shaft body. Screwed with a wooden frame on the side
The threads of the screw thread direction opposite form for screwing, the outer diameter of the thread of the opposite and smaller than the outer diameter of the thread for the screwing, the threads of the reverse shaft distal end side of the slopes, by gradual than the slope of the head side, the wood for crates adjustment, characterized in that the screwing force of the screw threads and greater than the resistance force of the thread of the opposite for screwing <br / > Screws.

[0013] The pitch of the screw thread in the opposite direction is
It can be configured to be larger than the pitch of the thread for

The head has a driver groove on a substantially flat top surface, the shaft side of the head is connected to the shaft by an inclined surface, and a plurality of cutting blades are provided on the shaft side on the outer periphery of the head. A configuration having a sloped edge formed on the inclined surface, a configuration having both a cutting blade and a sloped edge, or a configuration having a knurled blade between the screw threads may be used.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a view showing an embodiment of a wood screw for adjusting a wooden frame according to the present invention. Wood screw 11 shown in FIG.
Is composed of a head 12 and a shaft 13.

The head 12 has a flat top surface 12a, and a driver groove 12b such as a cross groove is formed in the top surface 12a.
The shaft 13 side of the head 12 is an inclined surface 12c. A plurality of cut blades 12d having a triangular cross section are formed on the shaft 13 side of the outer periphery of the head 12, and a plurality of slope blades 12e having the same triangular cross section are formed on the inclined surface 12c.

A thread 13a for screwing is formed in the shaft body 13 in a helical shape over a half of the length from the distal end side, and a plurality of threads 13a are provided between the threads 13a. The knurl blade 13b is formed obliquely. On the head side of the shaft body 13, a reverse thread 13 c which is a feature of the present invention is provided.
There is. This is, literally, a thread 13 for screwing.
It is formed in the opposite direction to a. That is, the thread 13 c opposite long thread 13 c opposite long thread 13a is a right-hand thread for screwing a left-hand thread, the thread 13a for screwing the left screw becomes right-hand thread.

The cutting blade 12d and the inclined blade 12e
The details of the knurl blade 13b are described in Japanese Utility Model Application Laid-Open No. 6-47719, which is a prior application of the present applicant. The length L of the screw 13 c in the opposite direction of the wood screw 11 shown in FIG. 1 is substantially the same as the thickness of the fastening member on the head side shown in FIG.

Next, referring to FIG. 2, the wood screw 11 of the present invention will be described.
The operation of will be described. Opening 2 in the wall 1 of the building
The wooden frame 3 is attached to the wooden screw 1 of the present invention.
1 is directly screwed into the wooden frame 3 having no concave portion 3c by a driver or the like. The wood screw 11 enters the inside of the wooden frame 3 by the screw thread 13a on the tip side, but at this time, since the knurling blade 13b cuts the surrounding wood, the wood screw 11 can be screwed in with a small torque. It can be easily screwed. Eventually, the tip of the wood screw 11 passes through the wooden frame 3.

The tip of the penetrating wood screw 11 continues to be screwed into the opening 2 of the wall 1. Thereafter, the tip of the screw 13 c in the opposite direction reaches the surface of the wooden frame 3. For the thread 13c in the opposite direction, the screwing direction of the screwing thread 13a is a loosening direction, and the screwing thread 13a is resistant to screwing.

However, in the present invention, the thread 13 having the opposite direction is used.
The resistance force of c is made smaller than the screwing force of the screw thread 13a. Specifically, the pitch P1 of the thread 13c in the opposite direction is made larger than the pitch P2 of the thread 13a for screwing, or the outer diameter D1 of the thread 13c in the opposite direction is changed to the outer diameter D2 of the thread 13a for screwing. They are smaller or a combination of both. However, depending on the material of the wooden frame 3 and the opening 2 or the conditions of the screwing, the wood screw 11 of the present invention may be screwed in even if the pitch and the outer diameter of the screwing screw thread and the opposite screw thread are the same. Is possible.

With the above-described configuration, as the screwing by the driver is continued, the wood screw 11 continues to enter the opening 2, and the screw 13c in the opposite direction enters the wooden frame 3 so as to be forcibly dragged.

When the tip of the inclined surface 12c of the head 12 reaches the surface of the wooden frame 3, the inclined blade 12e starts to cut the wooden frame 3 and starts digging. Then, the inclined surface 12 c enters the wooden frame 3, and the head 12 is buried in the wooden frame 3. When the top surface 12a approaches the surface of the wooden frame 3, the cutting blade 12d makes a hole through which the top surface 12a can enter. Therefore, even without the concave portion 3c (FIGS. 7 and 8), the wood screw 11 of the present invention can be screwed in until it is flush with the wooden frame 3. And the wood screw 11
Finally, the wooden frame 3 is tightened so as to be in close contact with the opening 2. This state is similar to the state described in the conventional example of FIG.

Note that, depending on the material of the wood screw 11 and the wooden frame 3, the cutting blade 12d, the slope blade 12e, the knurl blade 13b, etc. are not all necessary, and one or two of them are selected. Can be adopted.

When the four wood screws of the four corners of the wooden frame 3 are tightened in this way, the distortion of the opening 2 is transferred to the wooden frame 3. Then, a level or the like is applied to the wooden frame 3, and the wooden screw 11 is turned in the opposite direction to adjust the interval s of the gap 6 so that the wooden frame 3 is vertical, horizontal, or at a predetermined angle.

[0026] In this case, the threads 13a of the tip end of the screwing of the wood screw 11 makes a gap 6 between the wooden frame 3 exits from the opening 2, but with the screw threads 13c and wooden frame 3 opposite the Rotation in the direction to be tightened. Therefore, since the head 12 tries to enter the wooden frame 3, the head 12 never protrudes from the wooden frame 3. Therefore, the floating d shown in the conventional example does not occur, and the gap 6 can be accurately determined. Thereafter, the gap 6 is filled with an adhesive or the like, and the wooden frame 3 is fixed to the opening 2.

FIG. 3 is a diagram of a second embodiment of the present invention.
In this embodiment, the slopes 13d and 13d of the thread 13c of the opposite direction are used.
3e, the slope of the slope 13d on the tip end side of the wood screw 11 is made gentler than the slope 13e on the head side to facilitate entry into the wooden frame 3. This is the opposite thread 13c
, And can be used in combination with increasing the pitch and reducing the outer diameter as described above. Other configurations are the same as those of the embodiment of FIG.

FIG. 4 is a view of a third embodiment of the present invention, and shows only a head portion having a different configuration. That is, the structure other than the head is the same as that of FIG. 1 or FIG. This embodiment is characterized in that the inclined surface 12c of the head is an arc and the inclined blade 12e is not provided. The lower surface 12f of the cutting blade 12d is perpendicular to the shaft 13. In this way, by making the lower surface 12f perpendicular to the shaft body, the wear of the metal screw forming die can be reduced,
The life of the mold can be extended.

[0029]

According to the present invention as described above,
A shaft, and a head formed at one end of the shaft;
A tree that adjusts the distance between the opening and the wooden frame attached to the opening
In a frame adjusting wood screw, the wood
A screw thread for screwing into the opening through the frame, and a screw thread opposite to the screw thread for screwing with the wooden frame are formed on the head side of the shaft body. By making the outer diameter of the screw thread in the opposite direction smaller than the outer diameter of the screw thread for screwing, and making the slope on the tip end side of the shaft of the opposite screw thread gentler than the slope on the head side, since the screwing force of the screw threads and greater than the resistance force of the thread of the opposite, when mounting the wooden frame in the opening of the wall, wood
The gap between the frame and the opening can be set in a stable state.

Further, the head has a driver groove on a substantially flat top surface, the shaft side of the head is connected to the shaft by an inclined surface, and a plurality of cutting blades are provided on the shaft side on the outer periphery of the head. If it is provided, or if a slope blade is provided on the inclined surface, it is not necessary to form a recess for accommodating the head of the wood screw in the wooden frame.
Further, if a knurled blade is formed between the screw threads for screwing, the screwing becomes easy.

[Brief description of the drawings]

FIG. 1 is a view showing one embodiment of a wooden screw for adjusting a wooden frame according to the present invention, wherein (a) is a front view, (b) is a B view of (a),
(C) is a CC sectional view of (a).

FIG. 2 is a diagram showing a state in which the wood screw for wood frame adjustment of the present invention is applied to a wood frame attached to an opening of a wall.

FIG. 3 is a front view showing another embodiment of the present invention.

FIG. 4 is an enlarged view of a head according to a third embodiment of the present invention.

FIG. 5 is a diagram illustrating a state in which a wooden frame is fixed to an opening formed in a wall of a building.

FIG. 6 is a front view of a conventional wood screw for fixing a wood frame.

FIG. 7 is a view showing a state in which a wooden frame is fixed to an opening with a wood screw in FIG. 6;

FIG. 8 is a diagram illustrating a state in which a gap between a wooden frame and an opening is adjusted.

[Explanation of symbols]

3 crates 11 wood screws 12 heads 12a top surface 12b driver groove 12c inclined surface 12d cut blade 12e slopes blade 13 threads 13b knurled edge 13c opposite thread 13d distal-side slope 13e head side of for shaft 13a screwed Slope

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-4-219511 (JP, A) JP-A-8-105421 (JP, A) JP-A-50-35566 (JP, A) JP-A-8-105 152014 (JP, A) JP-A-2-232457 (JP, A) JP-A-62-272912 (JP, A) JP-A-64-48416 (JP, U) JP-A-62-124311 (JP, U) 6-84012 (JP, U) Registered utility model 3021618 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E06B 25/04 B E06B 1/56 B E06B 1/60

Claims (6)

(57) [Claims] 1. A shaft, and a head formed at one end of the shaft.
Between the wooden frame attached to the opening in the wall and the opening
In the wooden screw for adjusting the distance between the wooden frames , a screw thread for screwing into the opening through the wooden frame is provided at the tip end side of the shaft body. Screwed with a wooden frame on the side
The threads of the screw thread direction opposite form for screwing, the outer diameter of the thread of the opposite and smaller than the outer diameter of the thread for the screwing, the threads of the reverse shaft distal end side of the slopes, by gradual than the slope of the head side, the wood for crates adjustment, characterized in that the screwing force of the screw threads and greater than the resistance force of the thread of the opposite for screwing <br / > Screws. 2. The wood screw for adjusting a wooden frame according to claim 1, wherein a pitch of the screw thread in the opposite direction is larger than a pitch of the screw thread for screwing. 3. The head has a driver groove on a substantially flat top surface, and the shaft side of the head is connected to the shaft by an inclined surface.
The wood screw for adjusting a wooden frame according to claim 1 or 2, wherein a plurality of cutting blades are provided on the shaft body side of the outer periphery of the head. 4. A wood screw for adjusting a wooden frame according to claim 3, wherein a slope blade is formed on said inclined surface. 5. The head has a driver groove on a substantially flat top surface, and the shaft side of the head is connected to the shaft body by an inclined surface,
2. A slope blade is formed on the slope.
4. The wood screw for adjusting a wooden frame according to any one of items 1 to 3. 6. The wood screw for adjusting a wooden frame according to claim 1, wherein a knurling blade is formed between the screw threads for screwing.