JP2021001627A - Frame connecting structure, connecting method and screw receiver for the method - Google Patents

Abstract

To provide a frame connecting structure for connecting a vertical frame and a horizontal frame in a mutually orthogonal state capable of further promoting labor saving by substantially eliminating screwing work for fastening both frames.SOLUTION: A horizontal frame 2 has machine screw lower holes 2a bored from a butt end surface along a member longitudinal direction; and a metal fixture installation holes 2b each communicating with the machine screw lower hole 2a in a direction orthogonal to the machine screw lower hole at an intermediate position of the machine screw lower hole 2a, and facing the outside at its one end. A vertical frame 3 has machine screw insertion holes 3a penetrating from an outside face in a thickness direction, and in a state that the machine screw insertion hole 3a of the vertical frame 3 and the machine screw lower hole 2a of the horizontal frame 2 are made to coincide with each other on a linear line, a screw part 5a of a machine screw 5 inserted from the machine screw insertion hole 3a of the vertical frame 3 is bitten in and anchored to both-side faces of a screw engagement groove 4a of a screw receiver 4 with respect to the screw receiver 4 which is inserted and installed in the metal fixture installation hole 2b, and having a substantially-reversed U-shaped screw engagement groove 4a which is open toward a tip side, thus connecting the horizontal frame 2 and the vertical frame 3.SELECTED DRAWING: Figure 3

Description

The present invention relates to a frame material connecting structure and connecting method for connecting frame materials (for example, a vertical frame and a horizontal frame) in an orthogonal state, and a screw receiver for that purpose.

In the construction of general houses and condominiums, in order to construct an opening frame for building shoji screens and doors, the work of connecting the vertical frame and the horizontal frame in an orthogonal state frequently occurs. In the past, the vertical frame and the horizontal frame were connected by screwing nails or screws from the side surface of the vertical frame to the end of the horizontal frame that was in contact with the inner side surface of the vertical frame. Has problems such as cracks in the end of the horizontal frame and the nails and screws popping out from the surface of the horizontal frame when the nails and screws are screwed in diagonally. Therefore, in recent years, some structures have been proposed for connecting the frame members to each other in a labor-saving manner without causing these problems.

For example, in Patent Document 1 below, in a frame coupling structure obtained by bringing the end surface of one frame member into contact with the inner surface of the other frame member and joining these two frame members in an orthogonal state, one frame member is , A first hole drilled so as to extend from the end face in the longitudinal direction of the frame member, and a substantially cylindrical second hole that intersects the first hole substantially perpendicularly and opens on the outer surface of the frame member. The other frame member has a through hole penetrating from the outer surface to the inner surface thereof, and a round nut receiver is rotatably inserted into the second hole of the one frame member. The round nut receiver is composed of a columnar member having a bolt insertion hole penetrating the side surface and a plate-shaped nut member having a female screw substantially concentric with the bolt insertion hole of the columnar member. In a state where the nut receiver is inserted into the second hole of one frame member, the bolt-shaped connector is inserted with the first hole of one frame member and the through hole of the other frame member aligned. Further, a frame coupling structure has been proposed in which the frame members are joined to each other by screwing the male screw of the bolt-shaped coupling tool into the female screw of the plate-shaped nut member of the round nut receiver.

Further, in Patent Document 2 below, the screw receiver A is composed of a screw receiver A, two plate members B and C to be connected at right angles, and a long screw D, and the screw receiver A has a columnar shaft portion. A large-diameter different-diameter head integrally formed at the upper end of the shaft portion is provided, and the shaft portion is provided with a screw hole penetrating in a direction orthogonal to the shaft core and screwing with the screw D. A shallow groove extending in a parallel direction or an orthogonal direction along the side end surface of the plate member B is provided on the surface of the plate member B of any one of the plate members, and the plate member B is provided at a desired portion of the groove. A receiver insertion hole extending in the thickness direction of the plate member B is provided, and a screw receiver hole that communicates from the side end surface of the plate member B at a right angle to the receiver insertion hole is provided, and the other plate member C is provided with an outer surface of the plate member C. A screw insertion hole communicating with the screw receiving hole is penetrated from the screw receiving hole, and the width of the groove is formed to be larger than the diameter of the small diameter portion of the different diameter head of the screw receiving tool A and smaller than the diameter of the large diameter portion. When the shaft of the screw receiver A is inserted into the receiver insertion hole and the head with a different diameter fits into the groove, the shaft core of the screw hole and the shaft core of the screw receiving hole are aligned. A plate material connecting device in which the positions of screw holes are set in advance has been proposed.

Japanese Unexamined Patent Publication No. 2008-88648 Japanese Unexamined Patent Publication No. 2009-121619

The connecting structures according to Patent Documents 1 and 2 are basically the same. Typically, when the example of Patent Document 1 is described, after inserting the round nut receiver into the second hole of one of the frame members, With the first hole of one frame member and the through hole of the other frame member aligned, the bolt-shaped connector is inserted through the through hole of the other frame member, and the male screw of the bolt-shaped connector is inserted into the circle. The structure is such that the frame members are connected to each other by screwing them into the female screw of the plate-shaped nut member of the nut receiver. Compared with the conventional method, the frame members can be reliably connected to each other in less time and effort. You will be able to connect.

However, even in the case of such a structure, in order to screw the bolt-shaped connector to the female screw of the plate-shaped nut member, it is necessary to rotate the bolt-shaped connector by a screwdriver or the like at each connection point. Therefore, a frame connection structure capable of further labor saving has been desired.

Therefore, the main subject of the present invention is a connecting structure and a connecting method of the frame material for connecting the vertical frame and the horizontal frame in an orthogonal state, and it is necessary to almost eliminate the screw turning work for fastening both members. This is to further save labor than before.

In order to solve the above-mentioned problems, the present invention according to claim 1 is a frame material connecting structure for connecting one side frame material and the other side frame material joined in a state orthogonal to the one side frame material by metal fittings. hand,
The one-side frame member communicates with a screw pilot hole drilled from the end surface of the wood along the longitudinal direction of the member and an intermediate position between the screw pilot hole in a direction orthogonal to the screw pilot hole, and at one end. Has a metal fitting installation hole facing the outside, and the other side frame material has a screw insertion hole penetrating from the outer surface in the thickness direction.
With the screw insertion hole of the other side frame material and the screw pilot hole of the one side frame material aligned in a straight line, it is inserted and installed in the metal fitting installation hole, and is substantially reversed to open toward the tip side. For a screw receiver having a U-shaped screw engaging groove, the screw portion of the screw inserted from the screw insertion hole of the other side frame material bites into both side surfaces of the screw engaging groove of the screw receiver. Provided is a frame material connecting structure characterized in that the one-side frame material and the other-side frame material are connected by being fastened.

In the invention according to claim 1, the screw lower hole is formed in the one-side frame material in advance from the end surface of the wood along the longitudinal direction of the member, and the screw lower hole is located at an intermediate position between the screw pilot holes. In addition to communicating in a direction orthogonal to the hole, a metal fitting installation hole having one end facing the outside is formed, and a screw insertion hole penetrating from the outer surface in the thickness direction is formed in the other side frame material. Then, in a state where the screw insertion hole of the other side frame material and the screw pilot hole of the one side frame material are aligned on a straight line, the screw insertion hole is inserted into the metal fitting installation hole and opened toward the tip side. With respect to a screw receiver having a substantially inverted U-shaped screw engaging groove, the screw portion of the screw inserted from the screw insertion hole of the other side frame material engages with both side surfaces of the screw engaging groove of the screw receiver. The one-side frame material and the other-side frame material are connected by being inserted and fastened.

In the present invention, the screw portion of the screw inserted from the screw insertion hole of the other side frame material is engaged with the screw engagement groove of the screw receiver and is fastened to the one side frame material and the other side. It is connected to the frame material. That is, the screw portion of the screw is not screwed into the screw receiver by being turned by a screwdriver, but the screw portion of the screw is placed on the lower side as described in the connection method according to claim 2 in the subsequent stage. It is fitted upward from the lower side with respect to the screw engaging groove that opens toward the screw, and is fastened by engaging the screw threads on both side surfaces of the screw engaging groove. Therefore, it is possible to further save labor as compared with the conventional case by almost eliminating the screw turning work for fastening both members.

The present invention according to claim 2 is a method of connecting a frame material for connecting one side frame material and the other side frame material joined in a state orthogonal to the one side frame material by metal fittings.
The one-side frame member communicates with a screw pilot hole drilled from the end surface of the wood along the longitudinal direction of the member and an intermediate position between the screw pilot hole in a direction orthogonal to the screw pilot hole, and at one end. Has a metal fitting installation hole facing the outside, and the other side frame material has a screw insertion hole penetrating from the outer surface in the thickness direction.
The first procedure in which the screw insertion hole of the other side frame material and the screw pilot hole of the one side frame material are aligned on a straight line and the screw is inserted from the screw insertion hole of the other side frame material.
A screw receiver having a substantially inverted U-shaped screw engaging groove that opens toward the tip side is driven into the metal fitting installation hole of the one-side frame material, and the screw portion of the screw is screwed to the screw receiver. The second step of fitting the screw thread into the joint groove and engaging the screw thread on both side surfaces of the screw engaging groove to fasten the screw thread.
Provided is a method for connecting a frame material, which comprises a third procedure of firmly connecting the one side frame material and the other side frame material by tightening the screws.

In the invention according to claim 2, first, a screw is inserted through a screw insertion hole of the other side frame material. At this time, the entire length of the screw is inserted into the screw insertion hole and the screw pilot hole (first step). Next, a screw receiver having a substantially inverted U-shaped screw engaging groove that opens toward the tip side is driven into the metal fitting installation hole of the one-side frame material, and the screw portion of the screw is inserted into the screw receiver. It is fitted into the screw engaging groove from the lower side upward, and is fastened by engaging the screw thread with the surface of the screw engaging groove (second step), and finally the screw is tightened. As a result, the one-side frame material and the other-side frame material are firmly connected (third procedure).

In the case of this method, the screw turning work is only the tightening in the third step. Since this retightening requires only a small amount of rotation, it is possible to further save labor as compared with the conventional case by almost eliminating the screw turning work for fastening both frame materials.

The present invention according to claim 3 is a screw receiver used in the frame material connecting structure according to claim 1 or the frame material connecting method according to claim 2, wherein the screw receiving device is on the tip side. Provided is a screw receiver characterized by having a substantially inverted U-shaped screw engaging groove that opens toward it.

As the present invention according to claim 4, the screw receiver according to claim 3, wherein the screw receiver is a resin, is provided.

As the present invention according to claim 5, any of claims 3 and 4, wherein both side surfaces of the screw engaging groove are subjected to knurling, a plurality of small grooves arranged in a row, or a female screw groove. The screw receivers described in are provided.

The invention according to claim 5 is a plurality of small grooves arranged in a row on both side surfaces of the screw engaging groove in order to strengthen the fastening structure between the screw portion and the screw receiver. It is one of the female threaded grooves.

As described in detail above, according to the present invention, there is a connection structure and a connection method of the frame material for connecting the vertical frame and the horizontal frame in an orthogonal state, and the screw turning work for fastening both members is almost performed. By eliminating it, it is possible to further save labor compared to the conventional method.

It is a main part perspective view which shows the state which connected the horizontal frame 2 and the vertical frame 3. It is an exploded perspective view. It is an enlarged vertical sectional view of the main part. It is a perspective view of the screw receiver 4. The screw receiver 4 is shown, (A) is a front view, (B) is a side view, and (C) is a plan view. It is a side view which shows the anchored state of a screw 5 and a screw receiver 4. This is the procedure for connecting the horizontal frame 2 and the vertical frame 3 (No. 1). This is the procedure for connecting the horizontal frame 2 and the vertical frame 3 (No. 2). This is the procedure for connecting the horizontal frame 2 and the vertical frame 3 (No. 3). This is the procedure for connecting the horizontal frame 2 and the vertical frame 3 (No. 4). It is a perspective view of the screw receiver 4'corresponding to the 2nd form example. Further, it is a fastening state diagram of the screw 5 and the screw receiver 4 which shows the modification. It is a perspective view which shows another example of the connection structure of a frame material.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

In the frame material connecting structure 1 according to the present invention, one side frame material in the vertical frame and the horizontal frame and the other side frame material in the vertical frame and the horizontal frame connected to the vertical frame and the horizontal frame in an orthogonal state are connected by metal fittings. It is to be connected. Specifically, as shown in FIGS. 1 to 3, one side frame material, in the illustrated example, the horizontal frame 2 is a pilot hole 2a for a screw formed from the end surface of the wood along the longitudinal direction of the member, and the screw. It communicates with the intermediate position of the pilot hole 2a in an orthogonal state, and has a metal fitting installation hole 2b having one end facing the outside. One of the other side frame members, in the illustrated example, the vertical frame 3 has a screw insertion hole 3a penetrating from the outer surface in the thickness direction.

Then, as shown in FIG. 3, the screw insertion hole 3a of the vertical frame 3 and the screw pilot hole 2a of the horizontal frame 2 are inserted and installed in the metal fitting installation hole 2b in a state of being aligned on a straight line. Further, with respect to the screw receiver 4 having a substantially inverted U-shaped screw engaging groove 4a that opens toward the tip side, the screw portion 5a of the screw 5 inserted from the screw insertion hole 3a of the vertical frame 3 is said. The horizontal frame 2 and the vertical frame 3 are connected by engaging with both side surfaces of the screw engaging grooves 4a of the screw receiver 4 and being fastened.

Hereinafter, the details will be described in more detail.

As shown in FIG. 1, the connecting structure of the frame material according to the present invention includes one side frame material in the vertical frame and the horizontal frame, and the other side of the vertical frame and the horizontal frame connected in an orthogonal state to the one side frame material. The side frame material is connected by metal fittings. In the illustrated example, one side frame material is a horizontal frame 2, the other side frame material is a vertical frame 3, and both frame materials 2 are in a state where the end surface of the horizontal frame 2 is in contact with the inner surface of the upper end of the vertical frame 3. An example of connecting 3 and 3 in an orthogonal state is shown. As shown in FIG. 13, one side frame material is a vertical frame 3, the other side frame material is a horizontal frame 2, and the end surface of the vertical frame 3 is in contact with the inner side surface of the end portion of the horizontal frame 2. Therefore, when both frame members 2 and 3 are connected in an orthogonal state, the same procedure can be performed.

As shown in FIG. 3, a screw pilot hole 2a is previously formed in the horizontal frame 2 from the end surface of the wood along the longitudinal direction of the member. The number of pilot holes 2a for screws is provided at intervals in the lateral direction by the number of screws. Normally, the number of rows is one, but if the horizontal frame is thick, it can be arranged in two rows. The diameter of the pilot hole 2a for the screw is a diameter that can be pushed in relatively easily when the screw 5 is pushed in, that is, a diameter that is about the same as the outer diameter of the screw 5 (outer diameter including the screw thread). It is desirable to form it with a diameter slightly smaller than that.

Further, a metal fitting is installed so as to communicate with the screw pilot hole 2a at an intermediate position, specifically, at a position closer to the tip end side of the screw 5 in a direction orthogonal to the screw pilot hole 2a, and one end facing the outside. The hole 2b is formed. In the illustrated example, the metal fitting installation hole 2b is circular in a plan view, but may be a square shape such as a quadrangle or a hexagon.

On the other hand, with respect to the vertical frame 3, a screw insertion hole 3a penetrating from the outer surface in the thickness direction is formed in advance at a position where the end surface of the horizontal frame 2 is joined. In the illustrated example, in order to fit and hide the head 5b of the screw 5, the inlet portion of the screw insertion hole 3a is a head fitting hole 3b formed with a relatively large diameter. The screw insertion hole 3a is formed in a 1: 1 relationship with the screw pilot hole 2a of the horizontal frame 2. Further, the diameter of the screw insertion hole 3a is the same as that of the screw pilot hole 2a.

The screw receiver 4 is fitted and installed in the metal fitting installation hole 2b of the horizontal frame 2. As shown in FIG. 4 and FIG. 5 in detail, the screw receiver 4 is a member having a substantially inverted U-shaped screw engaging groove 4a that opens toward the tip side on the lower side. The outer diameter D1 of the screw receiver 4 is approximately the same as the diameter of the metal fitting installation hole 2b, or slightly larger than this by about 0.5 to 1 mm so that it will not easily fall off due to friction when fitted. It is desirable to. Further, as shown in FIG. 5 (B), it is desirable to make the diameter slightly smaller below the midpoint in the height direction to facilitate fitting. Regarding the front shape of the screw engaging groove 4a, even if it is U-shaped downward (the ceiling surface is not arcuate but flat) or both side surfaces of the screw engaging groove 4a are not flat, it faces downward as a whole. If the shape is open to the outside, it is included in the concept of "substantially inverted U-shape".

It is desirable that the material of the screw receiver 4 is a relatively soft metal material such as resin or aluminum alloy. When using a resin, it is desirable to select a material that has high toughness and is hard to break.

The width S of the screw engaging groove 4a is about the effective diameter of the screw 5 (intermediate diameter between the screw thread diameter φ2 and the screw valley diameter φ1), and the screw thread bites into both side surfaces of the screw engaging groove 4a. As a result, the screw portion 5a of the screw 5 is fastened by the screw receiver 4.

In the structure of the present invention, the fastening of the screw portion 5a of the screw 5 to the screw engaging groove 4a of the screw receiver 4 does not cause the screw 5 to be screwed into the screw engaging groove 4a of the screw receiver 4. , The screw portion 5a of the screw 5 is fitted into the screw engaging groove 4a that opens downward from the lower side upward, and the screw thread bites into both side surfaces of the screw engaging groove 4a. It is fixed. This method will be described in detail in the latter section [Method of connecting frame members].

[How to connect the frame material]
Next, a method (procedure) for connecting the frame members will be described with reference to FIGS. 7 to 10.

(First step)
First, as shown in FIG. 7, the screw insertion hole 3a of the vertical frame 3 and the screw pilot hole 2a of the horizontal frame 2 are aligned on a straight line, and the screw insertion hole 3a of the vertical frame 3 is set. Insert the screw 5 from. The screw 5 is firmly pushed in so that the entire length of the screw 5 is inserted into the screw insertion hole 3a and the screw pilot hole 2a. The insertion complete state of the screw 5 is the state shown in FIG.

(Second step)
Next, as shown in FIG. 9, a screw receiver 4 having a substantially inverted U-shaped screw engaging groove 4a that opens toward the tip side is inserted into the metal fitting installation hole 2b of the horizontal frame 2 by a hammer or the like. By driving in, the screw portion 5a of the screw 5 is fitted into the screw engaging groove 4a of the screw receiver 4, and the screw thread is engaged with both side surfaces of the screw engaging groove 4a to be fastened. That is, the screw receiver 4 is driven in, the screw portion 5a of the screw 5 is fitted into the screw engagement groove 4a of the screw receiver 4 from the lower side upward, and the screw thread is inserted into the screw engagement groove. It is stopped by biting into the surface of 4a. The screw engaging groove 4a is a groove formed by the leg-shaped pieces on both sides, and since the leg-shaped piece has elastic deformation performance in the expansion direction, the leg-shaped piece is inserted when the screw 5 is inserted. By elastically deforming in the expansion direction, stress is relaxed and damage is prevented.

(Third step)
Finally, the horizontal frame 2 and the vertical frame 3 are firmly connected by tightening the screw 5. The horizontal frame 2 and the vertical frame 3 are connected by the second procedure, but since there is a concern that some rattling may occur only in the second procedure, the screw 5 is finally tightened. Try to connect so that there is no rattling. Since the amount of rotation of the screw for this tightening is small, according to this connection method, further labor saving than before by almost eliminating the screw turning work for connecting the horizontal frame 2 and the vertical frame 3. It becomes possible to achieve the conversion.

[Examples of other forms]
(1) In the above embodiment, both side surfaces of the screw engaging groove 4a of the screw receiver 4 are flat surfaces, but in order to strengthen the fastening structure between the screw portion 5a of the screw 5 and the screw receiver 4. It is also possible to perform knurling, a plurality of small grooves, or a female screw groove on both side surfaces of the screw engaging groove 4a. The example shown in FIG. 11 is an example in which a plurality of small grooves 4b, 4b ... Arranged in the vertical direction at intervals in the horizontal direction are formed on both side surfaces of the screw engaging groove 4a. The example shown in 12 is an example in which a female screw groove 4c is formed on both side surfaces of the screw engagement groove 4a so that the male screw of the screw 5 is properly engaged. Although not shown, hatched grooves and cross-hatched grooves can be formed as the knurling process.

1 ... Connection structure, 2 ... Horizontal frame, 2a ... Screw pilot hole, 3 ... Vertical frame, 3a ... Screw insertion hole, 3b ... Head fitting hole, 4 ... Screw receiver, 4a ... Screw engagement groove, 5 ... Screw, 5a ... Screw part, 5b ... Screw head

Claims (5)

It is a connecting structure of a frame material for connecting one side frame material and the other side frame material joined in a state orthogonal to the one side frame material by metal fittings.
The one-side frame member communicates with a screw pilot hole drilled from the end surface of the wood along the longitudinal direction of the member and an intermediate position between the screw pilot hole in a direction orthogonal to the screw pilot hole, and at one end. Has a metal fitting installation hole facing the outside, and the other side frame material has a screw insertion hole penetrating from the outer surface in the thickness direction.
With the screw insertion hole of the other side frame material and the screw pilot hole of the one side frame material aligned in a straight line, it is inserted and installed in the metal fitting installation hole, and is substantially reversed to open toward the tip side. For a screw receiver having a U-shaped screw engaging groove, the screw portion of the screw inserted from the screw insertion hole of the other side frame material bites into both side surfaces of the screw engaging groove of the screw receiver. A frame material connecting structure, characterized in that the one-side frame material and the other-side frame material are connected by being fastened. It is a method of connecting a frame material for connecting one side frame material and the other side frame material joined in a state orthogonal to the one side frame material by metal fittings.
The one-side frame member communicates with a screw pilot hole drilled from the end surface of the wood along the longitudinal direction of the member and an intermediate position between the screw pilot hole in a direction orthogonal to the screw pilot hole, and at one end. Has a metal fitting installation hole facing the outside, and the other side frame material has a screw insertion hole penetrating from the outer surface in the thickness direction.
The first procedure in which the screw insertion hole of the other side frame material and the screw pilot hole of the one side frame material are aligned on a straight line and the screw is inserted from the screw insertion hole of the other side frame material.
A screw receiver having a substantially inverted U-shaped screw engaging groove that opens toward the tip side is driven into the metal fitting installation hole of the one-side frame material, and the screw portion of the screw is screwed to the screw receiver. The second step of fitting the screw thread into the joint groove and engaging the screw thread on both side surfaces of the screw engaging groove to fasten the screw thread.
A method for connecting a frame material, which comprises a third procedure of firmly connecting the one side frame material and the other side frame material by tightening the screws. A screw receiver used in the frame material connecting structure according to claim 1 or the frame material connecting method according to claim 2, wherein the screw receiving device has a substantially inverted U shape that opens toward the tip side. A screw receiver characterized by having a screw engaging groove. The screw receiver according to claim 3, wherein the screw receiver is a resin. The screw receiver according to any one of claims 3 and 4, wherein both side surfaces of the screw engaging groove are subjected to any of knurling, a plurality of small grooves arranged in a row, and a female screw groove.

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