Patent Grant
11746585
This application is a national phase entry under 35 U.S.C. 371 of PCT International Application No. PCT/JP2019/026256 filed Jul. 2, 2019, which claims priority to Japanese Patent Application No. 2018-128165, filed Jul. 5, 2018, the disclosure of each of these applications is expressly incorporated herein by reference in their entirety.
The present invention relates to a connecting member, a connecting fitting therefor, a connecting structure therefor, and a connecting method therefor, and more particularly, to a connecting member for construction materials, a connecting fitting therefor, a connecting structure therefor, and a connecting method therefor that can be used to connect two construction materials spaced apart from each other, more specifically, a construction material on the side of a skeleton such as a wall, and an apparatus-side construction material such as an opening frame, e.g., a door frame of a hinged door apparatus, a sliding door apparatus, or the like.
Patent literature 1 below discloses that a door frame as a doorway is arranged in a wall as a skeleton of a building. In this example, the inside of the door frame is opened and closed by a hinged door.
Patent Literature 1: Japanese Utility Model Laid-Open no. 6-10585
The work for arranging an opening frame such as a door frame in a wall includes a work for arranging an opening frame as a construction material for a hinged door with an interval from a skeleton-side construction material formed on the wall side, and connecting the skeleton-side construction material and the opening frame by using a connecting member.
It is an object of the present invention to provide a connecting member for construction materials, a connecting fitting therefor, a connecting structure therefor, and a connecting method therefor that make it possible to easily perform the work for connecting two construction materials spaced apart from each other within a short time by improving the workability.
A connecting member for construction materials according to the present invention is a connecting member for construction materials, which connects two construction materials arranged with an interval therebetween, the connecting member including a connecting part including a first end portion reaching a locked member arranged in one construction material of the two construction materials such that a thickness direction of the one construction material, which is perpendicular to a direction of the interval, is an axial direction, and a second end portion reaching the other construction material of the two construction materials, wherein the second end portion is formed to have a torsion angle α s an inclination angle to a direction perpendicular to the axial direction of the locked member, and, when the second end portion is coupled with the other construction material and the torsion angle of the second end portion reduces or disappears, a torsion angle as an inclination angle to a direction perpendicular to the axial direction can be generated in the first end portion, and the first end portion locks on the locked member due to the generation of the torsion angle, thereby connecting the two construction materials.
In the connecting member for construction materials according to the present invention as described above, the second end portion, on the side of the other construction material, of the connecting part is formed to have a torsion angle α s an inclination angle to a direction perpendicular to the axial direction of the locked member. Therefore, when the second end portion is coupled with the other construction material by the coupling fitting and the torsion angle of the second end portion reduces or disappears, a torsion angle as an inclination angle to a direction perpendicular to the axial direction is generated in the first end portion, on the side of one construction material, of the connecting part. Due to the generation of this torsion angle, the first end portion locks on the locked member arranged in one construction material, and the two construction materials are connected. Accordingly, by performing the work for coupling the second end portion, of the two end portions of the connecting part, with the other construction material by the coupling fitting, the work for connecting the two construction materials so that they are immobile in the axial direction of the locked member is spontaneously performed. This makes it possible to easily perform the work for connecting two construction materials spaced apart from each other within a short time, thereby improving the workability.
In the connecting member for construction materials according to the present invention described above, the first end portion can be locked by the locked member by, e.g., forming an insertion portion for inserting the locked member in the first end portion.
This insertion portion can be a hole and can also be a notch such as a recess.
In the connecting member for construction materials according to the present invention, the connecting part can be one part, but it is also possible to form two connecting parts in the axial direction of the locked member. In addition, when arranging the two connecting parts in the axial direction of the locked member, the two connecting parts can be coupled with each other by a bridge part having a widthwise dimension in the axial direction of the locked member.
When coupling the two connecting parts by the bridge part having the widthwise dimension in the axial direction of the locked member, the directions of the torsion angles of the second end portions of the two connecting parts can the either the same direction or opposite directions.
Also, when coupling the two connecting parts by the bridge part having the widthwise dimension in the axial direction of the locked member, a strength decreasing portion for decreasing the strength of the bridge part can be formed in the bridge part.
In this case, when the two end portions of the two connecting parts are coupled with the other construction material by the coupling fittings, the torsion angles reduce or disappear, so the bridge part causes deformation such as curving, and a torsion angle with which the first end portion locks on the locked portion is generated in each of the first end portions of the two connecting parts. In this case, when the strength decreasing portion for decreasing the strength of the bridge part is formed in the bridge part, the bridge part easily causes deformation such as curving, so each end portion on the side of one construction material can be locked by the locked member more reliably.
This strength decreasing portion can be, e.g., a hole such as an elongated hole or a round hole formed in the bridge part, a notch such as a recess, or a thin portion formed by thinning a portion of the bridge part.
In the connecting member for construction materials according to the present invention, the coupling fittings for coupling the second end portions of the two connecting parts, which are coupled by the bridge part, with the other construction material can be arranged on opposite sides of the two connecting parts in the axial direction, and can point in opposite directions in the axial direction. Alternatively, the coupling fittings can be arranged on the side of one of the two connecting parts, which is opposite to the other connecting part, in the axial direction, and can couple the two end portions of the two connecting parts with the other construction material in the same direction in the axial direction, and at least one of the coupling fittings can draw the other connecting part of the two connecting parts toward one connecting part.
In the latter embodiment, the work for coupling the second end portions of the two connecting parts with the other construction material can be performed by using these coupling fittings from the same side in the axial direction of the locked member. Consequently, the workability can further be improved. In addition, the work for connecting two construction materials can also be performed on an internal corner portion of a building.
In the connecting member for construction materials according to the present invention, the locked member is preferably a member having projections and recesses on the surface, in order to lock the first end portion by the locked member more reliably. In this case, the first end portion of the connecting part locks on the locked member more reliably due to the abovementioned projections and recesses on the surface of the locked member.
To use a member having projections and recesses on the surface as the locked member, the locked member can be a male screw rod on the surface of which a male screw is formed, and can also be a rod-like member on which projections and recesses formed on the entire circumference are alternately continuously arranged parallel in the axial direction.
A connecting fitting for construction materials according to the present invention is a connecting fitting for construction materials, which connects two construction materials arranged with an interval therebetween, the connecting fitting including a first connecting member and a second connecting member each configured to connect the two construction materials, wherein the first connecting member includes a connecting part including a first end portion reaching a locked member arranged in one construction material of the two construction materials such that a thickness direction of the one construction material, which is perpendicular to a direction of the interval, is an axial direction, and a second end portion reaching the other construction material of the two construction materials, the second end portion is formed to have a torsion angle α s an inclination angle to a direction perpendicular to the axial direction of the locked member, a torsion angle as an inclination angle to a direction perpendicular to the axial direction can be generated in the first end portion when the second end portion is coupled with the other construction material and the torsion angle of the second end portion reduces or disappears, and the first end portion locks on the locked member due to the generation of the torsion angle, thereby connecting the two construction materials, and the first connecting member and the second connecting member make inclination angles to the direction of the interval, and the inclination angle of the second connecting member to the direction of the interval becomes opposite to the inclination angle of the first connecting member, thereby connecting the two construction materials.
In this connecting fitting for construction materials, the second end portion of the connecting part of the first connecting member is formed to have a torsion angle α s an inclination angle to a direction perpendicular to the axial direction of the locked member. Therefore, when the second end portion is coupled with the other construction material by the coupling fitting and the torsion angle of this end portion reduces or disappears, a torsion angle as an inclination angle to a direction perpendicular to the axial direction is generated in the first end portion of the connecting part. The generation of this torsion angle causes the first end portion to lock on the locked member arranged in one construction material, thereby connecting the two construction materials. Even when using this connecting fitting for construction materials, therefore, by performing the work for coupling the end portion, on the side of the other construction material, of the two end portions of the connecting part of the first connecting member, with the other construction material by using the coupling fitting, the work for connecting the two construction materials so that they are immobile in the axial direction of the locked member is spontaneously performed. This makes it possible to easily perform the work for connecting two construction materials spaced apart from each other within a short time, thereby improving the workability.
Also, in this connecting fitting for construction materials, the first connecting member connects two construction materials by forming an inclination angle to the direction of an interval between the two construction materials, and the second connecting member connects these construction materials such that the inclination angle to the direction of the interval between the two construction materials is opposite to the inclination angle of the first connecting member. Therefore, after the two construction materials are connected by the first connecting member and the second connecting member, the two construction materials can be connected as they are immobile in, e.g., the vertical direction as the direction perpendicular to the direction of the interval between the two construction materials.
Note that in this connecting member for construction materials, an insertion member different from the locked member to be inserted into the first end portion of the first connecting member can be inserted into the first end portion of the second connecting member. However, the locked member to be inserted into the first end portion of the first connecting member may also be inserted as a common insertion member into the first end portion of the second connecting member.
In this case, the use of the common insertion member can simplify the structure and reduce the cost by reducing the number of members.
A connecting structure for construction materials according to the present invention is a connecting structure for construction materials, which connects two construction materials arranged with an interval therebetween, the connecting structure including a first connecting member and a second connecting member each of which is a member for connecting the two construction materials, wherein the first connecting member includes a connecting part including a first end portion reaching a locked member arranged in one construction material of the two construction materials such that a thickness direction of the one construction material, which is perpendicular to a direction of the interval, is an axial direction, and a second end portion reaching the other construction material of the two construction materials, the second end portion is formed to have a torsion angle α as an inclination angle to a direction perpendicular to the axial direction of the locked member, a torsion angle as an inclination angle to a direction perpendicular to the axial direction can be generated in the first end portion when the second end portion is coupled with the other construction material and the torsion angle of the second end portion reduces or disappears, and the first end portion locks on the locked member due to the generation of the torsion angle, thereby connecting the two construction materials, and the first connecting member and the second connecting member make inclination angles to the direction of the interval, and the inclination angle of the second connecting member to the direction of the interval becomes opposite to the inclination angle of the first connecting member, thereby connecting the two construction materials.
In this connecting structure for construction materials, the second end portion of the connecting part of the first connecting member is formed to have a torsion angle α as an inclination angle to a direction perpendicular to the axial direction of the locked member, like the above-described connecting fitting for construction materials. Therefore, when the second end portion is coupled with the other construction material by the coupling fitting and the torsion angle of this end portion reduces or disappears, a torsion angle as an inclination angle to a direction perpendicular to the axial direction is generated in the first end portion of the connecting part. Due to the generation of this torsion angle, the first end portion locks on the locked member arranged in one construction material, and the two construction materials are connected. Even in this connecting structure for construction materials, therefore, by performing the work for coupling the second end portion of the connecting part of the first connecting member with the other construction material by using the coupling fitting, it is spontaneously possible to perform the work for connecting the two construction materials by rendering them immobile in the axial direction of the locked member. This makes it possible to easily perform the work for connecting two construction materials spaced apart from each other within a short time, thereby improving the workability.
In addition, in this connecting structure for construction materials, the first and second connecting members make inclination angles to the direction of the interval, and the two construction materials are connected such that the inclination angle of the second connecting member with respect to the direction of the interval is opposite to the inclination angle of the first connecting member. Accordingly, after the two construction materials are connected by the first and second connecting members, the two construction materials can be connected as they are rendered immobile in, e.g., the vertical direction as a direction perpendicular to the direction of the interval between these construction materials.
A connecting method for construction materials according to the present invention is a connecting method for construction materials, which connects two construction materials arranged with an interval therebetween, wherein the method connects the two construction materials by using a first connecting member and a second connecting member each of which is a member for connecting the two construction materials, the first connecting member includes a connecting part including a first end portion reaching a locked member arranged in one construction material of the two construction materials such that a thickness direction of the one construction material, which is perpendicular to a direction of the interval, is an axial direction, and a second end portion reaching the other construction material of the two construction materials, the second end portion is formed to have a torsion angle α as an inclination angle to a direction perpendicular to the axial direction of the locked member, a torsion angle as an inclination angle to a direction perpendicular to the axial direction can be generated in the first end portion when the second end portion is coupled with the other construction material and the torsion angle of the second end portion reduces or disappears, and the first end portion locks on the locked member due to the generation of the torsion angle, thereby connecting the two construction materials, the first connecting member and the second connecting member make inclination angles to the direction of the interval, and the inclination angle of the second connecting member to the direction of the interval becomes opposite to the inclination angle of the first connecting member, thereby connecting the two construction materials, and the method includes a first working step of inserting the first connecting member and the second connecting member between the two construction materials such that the first connecting member and the second connecting member are arranged parallel or almost parallel to each other in a direction perpendicular to the direction of the interval and to the thickness direction of one of the two construction materials, a second working step of making the inclination angles of the first connecting member and the second connecting member to the direction of the interval opposite to each other, after the first working step, and a third working step of connecting the two construction materials by the first connecting member and the second connecting member, after the second working step.
In this connecting method for construction materials, the second end portion of the connecting part of the first connecting member is formed to have a torsion angle α as an inclination angle to a direction perpendicular to the axial direction of the locked member, like the above-described connecting fitting for construction materials and connecting structure for construction materials. Therefore, when the second end portion is coupled with the other construction material by the coupling fitting and the torsion angle of this end portion reduces or disappears, a torsion angle as an inclination angle to a direction perpendicular to the axial direction is generated in the first end portion of the connecting part. Due to the generation of this torsion angle, the first end portion locks on the locked member arranged in one construction material, and the two construction materials are connected. Even in this connecting fitting for construction materials, therefore, by performing the work for coupling the second end portion of the connecting part of the first connecting member with the other construction material by using the coupling fitting, it is possible to spontaneously perform the work for connecting the two construction materials by rendering them immobile in the axial direction of the locked member. This makes it possible to easily perform the work for connecting two construction materials spaced apart from each other within a short time, thereby improving the workability.
In addition, in this connecting method for construction materials, the first and second connecting members make inclination angles to the direction of the interval, and the two construction materials are connected such that the inclination angle of the second connecting member with respect to the direction of the interval is opposite to the inclination angle of the first connecting member. Accordingly, after the two construction materials are connected by the first and second connecting members, the two construction materials can be connected as they are rendered immobile in, e.g., the vertical direction as a direction perpendicular to the direction of the interval between these construction materials.
Furthermore, in this connecting method for construction materials, when inserting the first and second connecting members between the two construction materials in the first working step, the first and second connecting members are made parallel or almost parallel to each other as they are arranged in the direction perpendicular to the direction of the interval and to the thickness direction of one of the two construction materials. Therefore, the work for inserting the first and second connecting members between two construction materials can effectively be performed even when the interval between the first and second connecting members is small.
Two construction materials to be connected by the connecting member for construction materials, the connecting fitting therefor, the connecting structure therefor, and the connecting method therefor according to the present invention explained above can be arbitrary construction materials. One example of these construction materials includes a skeleton-side construction material such as a wall, and an opening frame arranged to oppose this construction material in the horizontal direction. This opening frame can be any of a door frame for a hinged door apparatus, an opening frame for a sliding door apparatus, and an opening frame for a passing opening to be formed in a wall. Also, one of the two construction materials can be a door case for accommodating a fire door that is normally opened from a door frame. In addition, the connecting member for construction materials, the connecting fitting therefor, the connecting structure therefor, and the connecting method therefor according to the present invention can also be used to connect two construction materials such as pillars including a middle pillar of a building, beams, crossbars, and face plates, that is, the present invention is applicable to arbitrary construction materials.
Furthermore, the connecting member for construction materials, the connecting fitting therefor, the connecting structure therefor, and the connecting method therefor according to the present invention are applicable to construction materials to be newly formed in a structure such as a building, and are also applicable to construction materials to be repaired.
The present invention achieves the effect of easily performing the work for connecting two construction materials spaced apart from each other within a short time, thereby improving the workability.
A mode for carrying out the present invention will be explained below with reference to the accompanying drawings.
Note that the door frame 2 may also be a three-side frame having no lower frame member 2D.
Before the work for arranging the door frame 2 inside the opening 4A of the wall 4, reinforcing members 7 shown in
In the above explanation, the core member 5, the reinforcing member 7, and the auxiliary member 8 are members of the wall 4 as a building skeleton, so the core member 5, the reinforcing member 7, and the auxiliary member 8 are skeleton-side construction materials. On the other hand, the hinged door 1 and the door frame 2 are members of the hinged door apparatus to be installed in the wall 4, so the hinged door 1 and the door frame 2 are hinged door apparatus-side construction materials.
Note that the two second connecting fittings 20B shown in
As shown in
Furthermore, the bridge part 27 has an elongated hole 31. The elongated hole 31 is elongated in the longitudinal direction of the connecting part 26, and functions as a strength decreasing portion formed in the bridge part 27 in order to decrease the strength of the bridge part 27.
As described above, the first connecting member 21 is formed by the two connecting parts 26 and the bridge part 27 bridged between the connecting parts 26, and the section perpendicular to the longitudinal direction is an almost U-shaped section. However, the end portions 26A, on the side of the auxiliary member 8, of the two connecting parts 26 open to the outside of the first connecting member 21 due to the torsion angles 90°-α described above. In other words, the end portions 26A form an inverted V-shape that opens outward in the axial direction N of the central shaft 24.
In the whole first connecting member 21, therefore, the shape formed by the end portions 26B, on the side of the door frame 2, of the two connecting parts 26 is a V-shape that closes to the inside of the first connecting member 21 due to the torsion angles 90°-β.
Note that the elongated hole 31 is formed in the bridge part 27 and decreases the strength of the bridge part 27, so the bridge part 27 is easily deformed, e.g., curved as described above, due to the loads W. Accordingly, the reduction or elimination of the torsion angles 90°-α of the end portions 26A on the side of the auxiliary member 8 and the generation of the torsion angles 90°-β of the end portions 26B on the side of the door frame 2 occur more reliably.
Also, of the two end portions 35A and 35B in the longitudinal direction of each connecting part 35, the end portion 35A on the side of the auxiliary member 8 slightly bends toward the inside of the second connecting member 22 with respect to the end portion 35B on the side of the door frame 2. Of the end portions 35A and 35B, the end portion 35B on the side of the door frame 2 has a first hole 37 having a large diameter, as an insertion portion for inserting the central shaft 24, and the end portion 35A on the side of the auxiliary member 8 has a second hole 38 having a small diameter, as an insertion portion for inserting the coupling fitting 34 shown in
Furthermore, the end portion 36B, on the side of the door frame 2, of the bridge part 36 has a projecting piece 40 that projects toward the central shaft 24, in other words, projects toward the first connecting member 21. The end portion 36B of the bridge part 36 has notches 41 in portions close to the projecting piece 40. In the end portion 36B of this embodiment, two notches 41 are formed on the two sides of the projecting piece 40. Note that as shown in
The projecting piece 40 formed in the second connecting member 22 as described above can be bent in the thickness direction of the whole second connecting member 22 if a load acts on the projecting piece 40 in this thickness direction. The two notches 41 of the end portion 36B of the bridge part 36, which are formed on the two sides of the projecting piece 40, function as strength decreasing portions for decreasing the strength of the proximal end portion of the projecting piece 40 in the bridge part 27. Therefore, the projecting piece 40 can easily be bent even if the abovementioned load acting on the projecting piece 40 is small.
In a factory for manufacturing the door frame 2, the first connecting fitting 20A including the first connecting member 21, the second connecting member 22, the bearing member 23, and the central shaft 24 explained above is assembled into a structure shown in
Note that the central shaft 24 according to this embodiment is a male screw rod on the surface of which many projections and recesses are alternately formed in the axial direction by thread ridges and grooves.
Accordingly, the projecting piece 40 forms a parallelizing means 45 that aligns the first and second connecting members 21 and 22 in the direction perpendicular to the axial direction N of the central shaft 24 and makes first and second connecting members 21 and 22 parallel or almost parallel to each other. Also, as will be described later, when the first connecting fitting 20A is inserted into the gap between the door frame 2 shown in
As shown in
The door frame 2 to which the first and second connecting fittings 20A and 20B are attached in the factory is transported to a construction site where the hinged door apparatus shown in
In this embodiment, when performing the work for arranging the door frame 2 and the first and second connecting fittings 20A and 20B inside the opening 4A of the wall 4 as described above, for the first connecting fitting 20A, among the plurality of first connecting fittings 20A, which is inserted into the horizontal interval between the auxiliary member 8 and the side frame members 2A and 2B of the door frame 2, the parallelizing function of the parallelizing means 45 described above can make the first and second connecting members 21 and 22 parallel or almost parallel to each other while aligning the first and second connecting members 21 and 22 in the vertical direction perpendicular to the horizontal direction as the interval between the reinforcing member 7 and the side frame members 2A and 2B, and to the thickness direction of the door frame 2, even when the first and second connecting members 21 and 22 can pivot around the central shaft 24. Also, for the first connecting fitting 20A to be inserted into the vertical interval between the upper frame member 2C of the door frame 2 and the auxiliary member 8 attached to the reinforcing member 7 coupled with the core member 5C, the parallelizing function of the parallelizing means 45 can make the first and second connecting members 21 and 22 parallel or almost parallel to each other while aligning the first and second connecting members 21 and 22 in the horizontal direction perpendicular to the vertical direction as the interval between the upper frame member 2C and the reinforcing member 7, and to the thickness direction of the door frame 2.
As described above, therefore, even when the first and second connecting members 21 and 22 of the first connecting fitting 20A are pivotable around the central shaft 24, and the horizontal interval between the reinforcing member 7 and the side frame members 2A and 2B and the vertical interval between the upper frame member 2C and the reinforcing member 7 are small, the first connecting fitting 20A can effectively be inserted into these intervals. This insertion work can be performed by standing up only the first connecting member 21 of the second connecting fitting 20B around the central shaft 24 of the second connecting fitting 20B. Since a few workers can easily finish the insertion work within a short time period, the workability can be improved.
After inserting the plurality of first connecting fittings 20A into the horizontal interval between the auxiliary member 7 and the side frame members 2A and 2B and into the vertical interval between the upper frame member 2C and the reinforcing member 7 as described above, the worker performs the work for pivoting at least one of the first and second connecting members 21 and 22 of each of the first connecting fittings 20A toward the side frame members 2A and 2B or the opposite side of the upper frame member 2C around the central shaft 24 with respect to the other connecting member. This pivoting work can be performed by, e.g., inserting a tool or the like into the second and third holes 29 and 30 of the first connecting member 21 shown in
In each first connecting fitting 20A, therefore, the first connecting member 21 forms an inclination angle with respect to the direction of the interval between the auxiliary member 8 and the side frame members 2A and 2B, and to the direction of the interval between the upper frame member 2C and the auxiliary member 8, and the second auxiliary member 22 forms an inclination angle in a direction opposite to that of the inclination angle of the first auxiliary member, with respect to the direction of the interval between the auxiliary member 8 and the side frame members 2A and 2B, and to the direction of the interval between the auxiliary member 8 and the upper frame member 2C.
Note that in the first connecting fittings 20A, the second connecting member 22 has the two notches 41 formed on the two sides of the projecting piece 40 of the second connecting member 22 as described above. Therefore, the worker can reliably bend the projecting piece 40 even when the load of the above-described pivoting work for bending the projecting piece 40 from the portion connected to the bridge part 36 of the second connecting member 22 is small.
Furthermore, in this embodiment, the central shaft 24 as the constituting member of the first connecting fitting 20A is an insertion member inserted into both the first and second connecting members 21 and 22 of the first connecting member 20A in order to make the first and second connecting members 21 and 22 pivotable. Accordingly, the number of members constituting the first connecting fitting 20A can be reduced compared to a case in which a central shaft for making each of the first and second connecting members 21 and 22 pivotable is used for each of the first and second connecting members 21 and 22. This makes it possible to simplify the structure and reduce the manufacturing cost.
After performing the above-described work, the worker inserts the two coupling fittings 25 (see
Furthermore, for each of the two second connecting fittings 20B (see
Note that the second connecting fittings 20B are formed without using the second connecting member 22 because the second connecting fittings 20B can effectively be arranged in the lowermost portions of the left and right side frame members 2A and 2B by omitting the second connecting member 22 that is supposed to be arranged below the first connecting member 21.
When the coupling work for coupling the first and second connecting fittings 20A and 20B by using the coupling fittings 25 and 34 as described above, the door frame 2 is connected to the auxiliary member 8 via the two connecting portions 26 of the first connecting member 21 and the two connecting parts 35 of the second connecting member 22 of the plurality of first connecting fittings 20A, and connected to the auxiliary member 8 via the two connecting parts 35 of the first connecting member 21 of the two connecting fittings 20B. In this connecting work for connecting the door frame 2 to the auxiliary member 8, the first connecting fitting 20A inserted into the gap between the reinforcing member 7 and the side frame members 2A and 2B has a posture by which the inclination angle θ1 made by the first connecting member 21 in the horizontal direction M as the direction of the gap between the reinforcing member 7 and the side frame members 2A and 2B and the inclination angle θ2 made by the second connecting member 22 in the horizontal direction M are in opposite directions (see
Also, as shown in
In particular, the central shaft 24 as the locked member of this embodiment is a male screw rod on the surface of which many projections and recesses are alternately formed in the axial direction by thread ridges and grooves, the corner 28A of the hole 28 locks on the surface of the central shaft 24 more reliably as described above. Consequently, the door frame 2 can be connected to the auxiliary member 8 such that the door frame 2 is immobile more reliably in the thickness direction of the door frame 2.
In this embodiment, the first and second connecting members 21 and 22 are coupled with the auxiliary member 8 by the coupling fittings 25 and 34 described above. The auxiliary member 8 is attached to the reinforcing member 7 by being set in a predetermined position in the thickness direction of the door frame 2 by the positioning member 10 shown in
In this embodiment as described above, when the load W (see
In the embodiment explained above, the end portions 26A and 35A, on the side of the auxiliary member 8, of the two connecting parts 26 and 35 of the first and second connecting members 21 and 22 of the first connecting fitting 20A are coupled with the auxiliary member 8 by the two coupling fittings 25 and the two coupling fittings 34. As shown in
On the other hand, another embodiment shown in
As shown in, e.g.,
Accordingly, when the coupling fittings 50 and 51 are inserted into the third holes 30 and 39 of the connecting parts 26E and 35E, of the pair of connecting parts 26D and 26E and the pair of connecting parts 35D and 35E of the first and second connecting members 21 and 22, and advanced by being rotated by using a tool, female screws are formed on the inner surfaces of the third holes 30 and 39 by the large-diameter male screw portions 50C and 51C. When the coupling fittings 50 and 51 are further advanced by being rotated by using the tool, the large-diameter male screw portions 50C and 51C form female screws in the third holes 30 and 39 of the connecting parts 26D and 35D on the side opposite to the side on which the coupling fittings 25, 34, 50, and 51 are arranged in the axial direction N of the central shaft 24. In this state, the small-diameter shaft portions 50B and 51B of the coupling fittings 50 and 51 have reached the third holes 30 and 39 of the connecting parts 26E and 35E on the same side as the side on which the coupling fittings 25, 34, 50, and 51 are arranged, and the small-diameter shaft portions 50B and 51B are idling in the third holes 30 and 39. On the other hand, the large-diameter male screw portions 50C and 51C draw the connecting parts 26D and 35D on the side opposite to the side on which the coupling fittings 25, 34, 50, and 51 are arranged, toward the connecting parts 26E and 35E on the same side as the side on which the coupling fittings 25, 34, 50, and 51 are arranged.
Consequently, of the end portions 26A and 35A, on the side of the auxiliary member 8, of the two connecting parts 26 and the two connecting parts 35 of the first and second connecting members 21 and 22, the end portions 26A and 35A on the side opposite to the side on which the coupling fittings 25, 34, 50, and 51 are arranged are strongly pressed against the auxiliary member 8. This sets the end portions 26A and 35A in the same state as that when they are coupled with the auxiliary member 8.
In this embodiment, all the coupling fittings 25, 34, 50, and 51 for coupling the end portions 26A and 35A, on the side of the auxiliary member 8, of the connecting parts 26 and 35 of the first and second connecting members 21 and 22 of the first connecting fitting 20A, with the auxiliary member 8 can be arranged on the same side in the axial direction N of the central shaft 24. Therefore, the work for rotating and advancing the coupling fittings 25, 34, 50, and 51 by using a tool can be performed by a worker on the same side in the axial direction N of the central shaft 24. This makes it possible to facilitate the work, shorten the time of the work, and improve the workability of the work.
Note that in the embodiment shown in
In this embodiment, the third holes 30 are formed in the two connecting parts 26D and 26E of the first connecting member 21 of the first and second connecting fittings 20A and 20B. Also, the third holes 39 are formed in the two connecting parts 35D and 35E of the second connecting member 22 of the first connecting fitting 20A. Unlike the example shown in
The present invention can be used to connect two construction materials spaced apart from each other, more specifically, to connect a construction material of a skeleton such as a wall to an apparatus-side construction material, e.g., an opening frame such as a door frame of a hinged door apparatus, a sliding door apparatus, or the like.
1 . . . hinged door, 2 . . . door frame as construction material of hinged door apparatus, 2A, 2B . . . side frame member of door frame, 2C . . . upper frame member of door frame, 4 . . . wall as skeleton, 7 . . . reinforcing member as skeleton-side construction material, 8 . . . auxiliary member as skeleton-side construction material, 20 . . . connecting fitting, 20A . . . first connecting fitting, 20B . . . second connecting fitting, 21 . . . first connecting member, 22 . . . second connecting member, 23 . . . bearing member, 24 . . . central shaft that functions as locked member and insertion member, 25, 34, 50, 51 . . . coupling fitting, 26 . . . connecting part, 26A . . . auxiliary-member-side end portion (second end portion) as end portion on side of other construction material, 26B . . . door-frame-side end portion (first end portion) as end portion on side of one constructure material, 27 . . . bridge part, 28 . . . hole that functions as insertion portion for inserting central shaft, 31 . . . elongated hole that functions as strength decreasing portion of bridge part, 90°-α, 90°-β . . . torsion angle, θ1, θ2 . . . inclination angle, M . . . horizontal direction as direction of interval, N . . . axial direction, W . . . load.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2018-128165 | Jul 2018 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2019/026256 | 7/2/2019 | WO |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2020/009101 | 1/9/2020 | WO | A |
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| 20210140225 | Kobayashi | May 2021 | A1 |
| Number | Date | Country |
|---|---|---|
| 2744811 | Dec 2005 | CN |
| 101498399 | Aug 2009 | CN |
| 207749946 | Aug 2018 | CN |
| 8400332 | Mar 1984 | DE |
| 0969177 | Jan 2000 | EP |
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| S5980082 | May 1984 | JP |
| S5982184 | Jun 1984 | JP |
| S59233085 | Dec 1984 | JP |
| H06-010585 | Feb 1994 | JP |
| H07229354 | Aug 1995 | JP |
| 913800 | Jan 1997 | JP |
| 09184397 | Jul 1997 | JP |
| 2006307633 | Nov 2006 | JP |
| 2012154084 | Aug 2012 | JP |
| 2015071863 | Apr 2015 | JP |
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| 2017115462 | Jun 2017 | JP |
| 2017115463 | Jun 2017 | JP |
| 2019011667 | Jan 2019 | JP |
| 2020007748 | Jan 2020 | JP |
| 10-2009-0008920 | Jan 2009 | KR |
| 20120084488 | Jul 2012 | KR |
| M488540 | Oct 2014 | TW |
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| Microfilm of Japanese Utility Model Application No. S54-182564. |
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| Microfilm of Japanese Utility Model Application No. S57-176414. |
| Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 119145/1971 (Laid-open No. 74432/1973) (KIMURA, Yutaka) Sep. 17, 1973, entire text, all drawings Reference JPS48-074432U (6 pages). |
| International Search Report issued by the Japanese Patent Office acting as the International Searching Authority in Yelation to International Application No. PCT/JP2019/026256 dated Sep. 10, 2019 along with English language translation (4 pages). |
| Written Opinion of the International Searching Authority issued by the Japanese Patent Office acting as the International Searching Authority in relation to International Application No. PCT/JP2019/026256 dated Sep. 10, 2019 along with English language translation (9 pages). |
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| Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 119145/1971 (Laid-open No. 74432/1973) (Kimura, Yutaka) Sep. 17, 1973, entire text, in particular, specification, p. 1, lines 3-5, p. 2, lines 1-23, all drawings. |
| Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 177815/1982 (Laid-open No. 82184/1984) (The Yamazaki Corporation) Jun. 2, 1984, entire text, all drawings. |
| Microfilm of the specification and drawings annexed to the request of Japanese Utility Model Application No. 134029/1973 (Laid-open No. 79224/1975) (Sankyo Aluminum Kogyo KK) Jul. 9, 1975, entire text, fig. 1-4, 6-10. |
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| Microfilm of Japanese Utility Model Application No. S46-119145. |
| Microfilm of Japanese Utility Model Application No. S46-97756. |
| Notice of Reasons for Refusal issued by the Japanese Patent Office in relation to Japanese Application No. 2020-122946 dated Mar. 15, 2022 (5 pages) along with English language translation (5 pages). |
| Notice of Reasons for Refusal issued by the Japanese Patent Office in relation to Japanese Application No. 2020-022040 dated Mar. 15, 2022 (4 pages) along with English language translation (4 pages). |
| Number | Date | Country | |
|---|---|---|---|
| 20210140225 A1 | May 2021 | US |
