JP6184729B2 - Connecting member - Google Patents

Description

  The present invention relates to a coupling member for coupling two members.

As for the installation of door frames used at entrances and exits of living rooms such as detached houses and apartments, a method of attaching a vertical frame 31 and an upper frame 32 at a construction site as shown in FIG. 1 is already known.
About such a door frame, it is disclosed by the following patent documents 1, for example.

In the invention described in Patent Document 1, as shown in FIG. 1, two vertical frames 31 are installed in a form along the outer frame 33 with respect to the outer frame 33 which has been completed in advance (FIG. 1 (A )), And then the upper frame 32 is fitted (the states of FIGS. 1B to 1D). In this case, the fitting is made possible by providing a gap above the vertical frame 31.

Japanese Patent No. 3525834, “Door Frame Mounting Structure”

When using a door frame as described in Patent Document 1, it is necessary to provide a sufficient gap 31a in a part of the vertical frame to fit the upper frame 32 therein. Therefore, there is a problem that the size of the vertical frame 31 needs to be greater than a predetermined value.
Furthermore, even when the upper frame 32 is fixed after the upper frame 32 is fitted, the gap 31a exists around the fixed upper frame 32, so that the coupling between the vertical frame 31 and the upper frame 32 is unstable. There was a problem of becoming.

Accordingly, the present invention has been made to solve the above-described problems.
That is, an object of the present invention is to provide a coupling member that can firmly couple two members without providing a gap in the other member in order to attach one member.

According to the present invention, a coupling member that tightly connects and connects the end surface of the second member to the side surface of the first member,
The end face of the second member is provided with a dovetail opening on the side face of the second member and wider on the inside than the end face,
On the side surface of the first member, a cylindrical hole perpendicular to the side surface is provided at a position facing the dovetail groove,
The coupling member is
A main body member integrally formed with an ant tenon portion closely fitting in the dovetail groove and a hollow cylindrical portion closely fitting in the cylindrical hole;
Ri Do and a fixing hardware for fixing the body member is inserted into the hollow cylindrical portion on the side surface of the first member,
The hollow cylindrical part has a through-tapered hole whose inner diameter is small as it approaches the tip,
The fixing member is a spring pin having an outer diameter that can be inserted into a large-diameter portion of the through-taper hole .

  Further, according to the present invention, the ant tenon portion includes a pair of side surfaces that are closely fitted to both sides in the width direction of the dovetail groove, a first plane that can be in close contact with the side surface of the first member, and a first plane. It has a second plane that is orthogonal and has a side surface that is flush with the side surface of the second member.

  Further, according to the present invention, the ant tenon portion has a tapered surface or an arc surface whose inner side in the width direction is narrow on the end surface on the opposite side of the second plane.

  Moreover, according to this invention, the said hollow cylindrical part has a some 1st convex part spaced apart in the axial direction.

  According to the present invention, the hollow cylindrical portion has a slit groove that is parallel to the axial direction and extends from the front end toward the rear end.

Further, according to the present invention, the side surface has a plurality of second convex portions whose tips protrude outward from the side surface.

According to the present invention, the coupling member is inserted into the hollow cylindrical portion and the main body member integrally formed with the dovetail portion closely fitting in the dovetail groove and the hollow cylindrical portion closely fitting in the cylindrical hole. By comprising a fixed hardware for fixing the main body member to the side surface of the first member, after the fixed hardware is inserted into the hollow cylindrical portion, the force that the hollow cylindrical portion presses around the first member from the inside of the first member is increased. Is possible. Furthermore, it becomes possible to couple | bond a 1st member and a 2nd member, without providing a space | gap in either a 1st member or a 2nd member. Therefore, the two members can be firmly coupled without providing one member with a gap in the other member.

It is explanatory drawing of the connection member of a prior art. It is a perspective view of the coupling member in the present invention. It is a side view of the main-body member in this invention. It is a rear view of the main-body member in this invention. It is explanatory drawing at the time of attaching the main body member in this invention to the 1st member. It is explanatory drawing at the time of fitting the 2nd member in this invention with the 1st member to which the main body member was attached. It is explanatory drawing of 1st Embodiment of the coupling member in this invention. It is explanatory drawing of 2nd Embodiment of the coupling member in this invention.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected to the common part in each figure, and the overlapping description is abbreviate | omitted.

2 is a perspective view of the coupling member in the present invention, FIG. 3A is a side view of the main body member in the present invention, and FIG. 3B is a side sectional view of the main body member in the present invention. is there.
The coupling member 20 in the present invention is configured to closely connect the end surface 22b of the second member 22 to the side surface 21b of the first member 21. Also, the end surface 22b of the second member 22 is provided with a dovetail groove 22a that opens on the side surface 22c of the second member 22 and is wider on the inner side than the end surface 22b. The dovetail groove 22a is formed on the side surface 21b of the first member 21. Is provided with a cylindrical hole 21a perpendicular to the side surface 21b.

  Here, “ant tenon” refers to a reverse-shaped tenon provided on the member, and “ant groove” refers to a reverse-shaped groove provided on the member. Further, “tenon” means a small protruding work provided on a pillar or a bundle. Therefore, it is possible to join two members by fitting an ant tenon into the ant groove.

  Further, the coupling member 20 in the present invention is composed of the main body member 10 and the fixed hardware 11.

In this example, the main body member 10 according to the present invention is integrally formed with an ant tenon portion 1 that closely fits in the dovetail groove 22a and a hollow cylindrical portion 2 that closely fits in the cylindrical hole 21a. Is assumed.
The ant tenon portion 1 and the hollow cylindrical portion 2 are preferably integrally molded by using a mold or the like, but may be those that are manufactured separately.

In this example, the ant tenon portion 1 includes a pair of side surfaces 1c closely fitted to both sides in the width direction of the dovetail groove 22a, a first plane 1a that can be in close contact with the side surface 21b of the first member 21, and a first It has a second plane 1b that is orthogonal to the plane 1a and is flush with the side 22c of the second member 22 when connected.
By having the first plane 1a, the first member 21 and the coupling member 20 can be in close contact with each other and can be coupled more firmly.
Further, since the second plane 1b is orthogonal to the first plane 1a and is positioned flush with the side surface 22c of the second member 22 at the time of connection, another member is in contact with the side surface 22c of the second member 22. Even when it exists, the side surface 22c of the second member 22 and the other member can be in close contact with each other.
The second plane 1b does not necessarily have to be flush with the side surface 22c of the second member 22 as long as it is not higher than the side surface 22c of the second member 22.

Moreover, the ant tenon part 1 has the circular arc surface 1d with the narrow inner side of the width direction in the opposite end surface of the 2nd plane 1b in this example.
With this configuration, when the ant tenon portion 1 and the dovetail groove 22a are fitted, the arcuate surface 1d guides this, so that the fitting can be performed easily.
The arc surface 1d may be a tapered surface having no arc portion.

Moreover, the ant tenon part 1 may have the some 2nd convex part 1e which the front-end | tip protruded to the outward of the side surface 1c in the side surface 1c.
The second convex portion 1e is for preventing the ant tenon 1 from coming off after the ant tenon portion 1 and the ant groove 22a are fitted together and the fitting is released. Specifically, when a force is applied in a direction in which the ant tenon 1 is removed from the ant groove 22a, a frictional force is generated on the inside of the ant groove 22a by the second convex portion 1e, and the ant tenon portion 1 is moved from the ant groove 22a. This prevents it from coming off.
In addition, although the 2nd convex part 1e in this example assumes what was provided in the form extended in parallel with the axial direction of the hollow cylindrical part 2, the structure which provides innumerable several convex part which consists of protrusion shape It may be. In addition, a plurality of concave portions positioned inward from the side surface 1c may be provided between the plurality of second convex portions 1e, and the second convex portions 1e and the concave portions may be alternately arranged.
Furthermore, although the 2nd convex part 1e in this example is provided only in a part of side surface 1c, the structure provided in the whole side surface 1c may be sufficient.

The hollow cylindrical portion 2 has a shape and size that can be fitted into the cylindrical hole 21a, and as shown in FIG. 2, the hollow cylindrical portion 2 has a shape through which the inside penetrates (the white portion in FIG. 3B). We assume what you have.
Moreover, it is preferable that this hollow cylindrical part 2 has the some 1st convex part 2a spaced apart in the axial direction (the direction of the axis A in FIG. 3 (A)).
With this configuration, when a force is applied in a direction in which the hollow cylindrical portion 2 is pulled out after the hollow cylindrical portion 2 is fitted into the cylindrical hole 21a, it is possible to generate a frictional force that counters this force.

In this example, the first convex portion 2a changes the diameter from the axis A to the outer surface of the hollow cylindrical portion 2 so that the outer surface of the hollow cylindrical portion 2 has a corrugated shape as shown in FIG. I am letting. Specifically, by gradually increasing the diameter from the axis A to the outer surface from the front end to the rear end of the hollow cylindrical portion 2, three first convex portions 2a each having a flare shape are formed. The diameter from the axis A to the outer surface need not be uniform.
The shape of the first convex portion 2a is not limited to this example. For example, when the hollow cylindrical portion 2 is fitted into the cylindrical hole 21a by providing a plurality of protrusions on the outer surface of the hollow cylindrical portion 2. Alternatively, the shape may increase the frictional force of the outer surface.

In the hollow cylindrical portion 2, the slit groove 2b is parallel to the axial direction (the direction of the axis A in FIG. 3) and extends from the front end toward the rear end. In this example, it is assumed that two are provided side by side in the horizontal direction, but only one of them may be provided, or along the circumferential direction of the hollow cylindrical portion 2. In addition, three or more may be provided at appropriate intervals (for example, at equal intervals).
With this configuration, the hollow cylindrical portion 2 can be easily expanded in diameter when the fixed hardware 11 is inserted into the hollow cylindrical portion 2 as will be described later. Further, with this configuration, even when the fixed hardware 11 is inserted, it is possible to prevent the hollow cylindrical portion 2 from being damaged by the stress received by the hollow cylindrical portion 2 from the inside.

Further, as shown in FIG. 3B, the hollow cylindrical portion 2 is preferably configured to have a through-tapered hole whose inner diameter becomes smaller toward the tip.
With this configuration, after the fixed hardware 11 is inserted into the hollow cylindrical portion 2, it is possible to increase the force with which the hollow cylindrical portion 2 presses around the inside of the first member 21. Therefore, with this configuration, the other member can be more firmly coupled to one member.

In this example, the fixed hardware 11 is assumed to be an elongated hardware having an outer diameter that can be inserted into the hollow cylindrical portion 2. Specifically, for example, a spring pin whose diameter can be reduced by pressure applied from the outside may be used.
Furthermore, the inside of the hollow cylindrical portion 2 may be a screw hole, and a screw may be used as the fixed hardware 11 so that the fixed hardware 11 can be stably inserted into the hollow cylindrical portion 2.
In addition, when the inside of the hollow cylindrical part 2 is a through-tapered hole as described above, the fixed hardware 11 needs to have an outer diameter that can be inserted into the large-diameter part of the through-tapered hole.

  In the example of FIG. 3, since the hollow cylindrical portion 2 and the main body member 10 are adjacent to each other in the axial direction of the hollow cylindrical portion 2, the hollow portion in the hollow cylindrical portion 2 also communicates with the main body member 10. However, depending on the positional relationship between the hollow cylindrical portion 2 and the main body member 10, the hollow portion in the hollow cylindrical portion 2 may not be in communication with the main body member 10.

FIG. 4 is a rear view of the main body member in the present invention.
The main body member 10 described above may have a structure in which the inside of the hollow cylindrical portion 2 excluding the hollow portion is clogged as shown in FIG. 4A, but is shown in FIG. 4B. Thus, the structure which makes an internal density small by providing the some rib 1f in the inside may be sufficient.
With this configuration, even if there is a slight error in the size of the main body member 10 and the dovetail groove 22a, it is possible to perform the fitting as shown in FIG. 6 (B). It becomes possible to prevent damage. Furthermore, since it becomes possible to reduce the raw material for manufacturing the coupling member 20, cost can be reduced.

  FIG. 5 is an explanatory diagram when attaching the main body member to the first member according to the present invention, and FIG. 6 is an explanatory diagram when fitting the second member according to the present invention to the first member to which the main body member is attached. It is.

The first member 21 has two cylindrical holes 21a in this example.
First, as shown in FIG. 5A, the hollow cylindrical portion 2 of the main body member 10 is fitted into the cylindrical hole 21a. In this case, the opposite end surface of the main body member 10 to the second plane 1b is at an angle facing the direction of the dovetail groove 22a of the second member 22 so that the second member 22 can be fitted. In this state, it is necessary to fit the hollow cylindrical portion 2 to the cylindrical hole 21a.

Next, the fixed hardware 11 is inserted into the hollow cylindrical portion 2 fitted to the first member 21. Thereby, the fitting of the main body member 10 to the first member 21 is completed as shown in FIG.
In this example, the two coupling members 20 are fitted into the two cylindrical holes 21a. However, these numbers are changed according to the shapes and applications of the first member 21 and the second member 22. It may be a thing.
In this example, the length in the longitudinal direction of the hollow cylindrical portion 2 is the same as the length in the longitudinal direction of the fixed hardware 11, and the fixed hardware 11 is hollow by fitting into the cylindrical hole 21 a of the hollow cylindrical portion 2. It is assumed that it is completely stored inside the cylindrical portion 2. In addition, when the length in the longitudinal direction of the fixed metal part 11 is longer than the length in the longitudinal direction of the hollow cylindrical part 2, or by reducing the inner diameter at the tip of the hollow cylindrical part 2, the fixed metal part 11 is completely inside the hollow cylindrical part 2. Even in the case where it cannot be stored, even if a part of the fixed hardware 11 is outside the hollow cylindrical portion 2, such a configuration is adopted if it can be fitted to the dovetail groove 22a in that state. Also good.

Next, as shown to FIG. 6 (A), the 2nd member 22 is fitted with dovetail with respect to the 1st member 21 with which the main body member 10 was fitted.
The second member 22 has two dovetail grooves 22a in this example.
Moreover, in the example of FIG. 6A, since the end surface on the opposite side of the second plane 1b in the main body member 10 is fitted downward, the second member 22 needs to be fitted from below. is there.

  By the above procedure, the first member 21 and the second member 22 can be coupled by the coupling member 20 as shown in FIG.

  Further, the main body member 10 in this example is made of an elastic resin (in order to enable fitting even when there is a slight error in the size of the main body member 10 and the dovetail groove 22a as described above. For example, the one manufactured by nylon resin is assumed. Thereby, the main body member 10 can be given flexibility.

FIG. 7 is an explanatory diagram of the first embodiment of the coupling member according to the present invention.
In this embodiment, the coupling member 20 used when installing a door frame is assumed.
Specifically, as shown in FIG. 7A, in the state where only the outer frame 23 of the door frame is already installed, the second member 22 (upper frame 22) is moved as shown in FIG. The first member 21 (vertical frame 21) in which the coupling member 20 is fitted at the height to be installed is installed. The vertical frame 21 needs to be installed along the outer frame 23, and two frames need to be installed in order to enable the installation of the upper frame 22.
Next, as shown in FIG. 7C, the upper frame 22 is fitted to the two coupling members 20 that are already installed. In this case, it is necessary to fit the dovetail groove 22a in the upward direction. As shown in FIG. 7D, the installation of the door frame is completed .
In this embodiment, since the vertical frame 21 and the upper frame 22 can be installed by fitting the dovetail groove 22a to the coupling member 20, the other member for attaching one member is used as the other member. There is no need to provide the gap. Further, even after the vertical frame 21 and the upper frame 22 are installed, the vertical frame 21 and the upper frame 22 can be removed without removing the outer frame 23 and the like. The door frame can also be exchanged at.

FIG. 8 is an explanatory diagram of the second embodiment of the coupling member according to the present invention.
In this embodiment, the coupling member 20 used when installing the shelf member 22 on the wall member 21 of the shelf is assumed.
Specifically, as shown in FIG. 8A, the two coupling members 20 are fitted at positions facing each other at the height at which the shelf member 22 is installed in the wall member 21.
Next, as shown in FIG. 8B, the shelf member 22 is fitted to the two coupling members 20 with the dovetail groove 22a facing downward. This completes the installation of the shelf member 22 as shown in FIG.

  According to the present invention, by having the above-described configuration, it is possible to increase the force with which the hollow cylindrical portion 2 presses the periphery of the first member 21 from the inside of the first member 21 after the fixed hardware 11 is inserted into the hollow cylindrical portion 2. Become. Furthermore, the first member 21 and the second member 22 can be coupled without providing a gap in either the first member 21 or the second member 22. Therefore, the two members can be firmly coupled without providing one member with a gap in the other member.

  In addition, this invention is not limited to embodiment mentioned above, is shown by description of a claim, and also includes all the changes within the meaning and range equivalent to description of a claim.

1 Ant tenon member,
1a 1st plane, 1b 2nd plane, 1c side surface, 1d circular arc surface,
1e 2nd convex part, 1f rib,
2 hollow cylindrical portion, 2a first convex portion, 2b slit groove,
10 Main body member,
11 fixed hardware, 20 coupling member,
21 1st member (vertical frame, wall member),
21a cylindrical hole, 21b side 22 second member (upper frame, shelf member),
22a dovetail groove, 22b end face, 22c side face,
23 Outer frame

Claims (6)

A coupling member that tightly connects the end surface of the second member to the side surface of the first member,
The end face of the second member is provided with a dovetail opening on the side face of the second member and wider on the inside than the end face,
On the side surface of the first member, a cylindrical hole perpendicular to the side surface is provided at a position facing the dovetail groove,
The coupling member is
A main body member integrally formed with an ant tenon portion closely fitting in the dovetail groove and a hollow cylindrical portion closely fitting in the cylindrical hole;
Ri Do and a fixing hardware for fixing the body member is inserted into the hollow cylindrical portion on the side surface of the first member,
The hollow cylindrical part has a through-tapered hole whose inner diameter is small as it approaches the tip,
The fixing member is a spring pin having an outer diameter that can be inserted into a large diameter portion of the through-taper hole .   The ant tenon portion includes a pair of side surfaces that are closely fitted to both sides of the dovetail in the width direction, a first plane that can be in close contact with the side surface of the first member, and a second member that is orthogonal to the first plane and connected when connected. The coupling member according to claim 1, further comprising: a second plane that is flush with a side surface of the second plane.   The coupling member according to claim 2, wherein the ant tenon portion has a tapered surface or an arc surface whose inner side in the width direction is narrow at an end surface opposite to the second plane.   The coupling member according to claim 1, wherein the hollow cylindrical portion has a plurality of first convex portions spaced apart in the axial direction.   The coupling member according to claim 1, wherein the hollow cylindrical portion has a slit groove that is parallel to the axial direction and extends from the front end toward the rear end.   2. The coupling member according to claim 1, wherein the side surface has a plurality of second convex portions whose tips protrude outwardly from the side surface.

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