JP4326653B2 - Column and horizontal joining device - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a joining apparatus suitable for joining a plurality of structural woods that intersect each other, such as attaching a horizontal member (beam or the like) to a column.
[0002]
[Prior art]
Japanese Utility Model Registration No. 2574473 and Japanese Utility Model Laid-Open No. 6-37402 disclose beam brackets with mortise for construction (hardware with mortise). This tenoned hardware is, for example, by fitting the tenon part of the tenoned metal fitting into a tenon hole formed in the pillar, passing the bolt through the coupling hole of the tenon part, and screwing the nut on the opposite side. , Attach to the pillar. And a beam (horizontal member) is engaged with this, a pin and a bolt are traversed from a beam to a tenoned hardware, and a beam is joined to a column. It is possible to join the column and beam with a simple process of forming a mortise hole on the column side and a slit to receive a thin metal plate with mortise on the beam side. Compared to the connection, the column and the beam are connected through bolts and hardware, so that a structure with higher earthquake resistance can be obtained.
[0003]
On the other hand, such a tenoned hardware is fixed in advance to a pillar with a bolt or the like, but it is preferable that this work can be easily and efficiently performed even if it is performed in the factory or on site. . Furthermore, when joining a beam to a column via a tenoned hardware at the site, it is important for the efficiency of the field work to be able to join smoothly and without hindrance.
However, such a mortise-attached hardware fixes the mortise-attached hardware and the pillar by passing the bolt through the pillar, so that the screw engagement between both ends is misaligned, for example, the position of the bolt and the nut passing through the pillar is misaligned. Tend to be difficult. When the bolt is short, the degree of screwing is insufficient, and when it is too long, the tip of the bolt protrudes. If it is too long, the bolt heads and nuts may protrude from the surface of the column on the opposite side of the tenoned hardware, interfering with the next stage of work.
Furthermore, since the mortise-attached hardware is interposed between the pillar and the beam, a part of the bolt (head, tip, etc.) that fixes the mortise-attached hardware to the pillar or a part of the nut is a part of the mortise-attached hardware. If it protrudes from the tenon recess, the end face of the beam will not collide with the beam when it is joined, and the position of the hole through which the coupling pin for fixing the beam and the tenoned hardware will be shifted. As a result, the joining cannot be completed smoothly. Moreover, there exists a possibility that the intensity | strength of joining may fall extremely.
[0004]
[Problems to be solved by the invention]
This invention is easy to attach to a pillar, and it is difficult to cause trouble when joining a horizontal member such as a beam to a pillar, and in addition to the side of the pillar opposite to the side where the mortise fitting is attached. It is an object of the present invention to provide a joining device for a column and a horizontal member in which a long bolt head does not protrude.
[0005]
[Means for Solving the Problems]
A tenoned hardware, a long bolt with a neck and a long nut with a head are provided. These hardware materials are usually galvanized steel plates and steel bars, but stainless materials and appropriate synthetic resins may be used. Moreover, surface treatment for rust prevention may be given to make a product.
The tenoned hardware is integrally provided with two side plates and a front tenon, the front side is attached to the pillar, and the horizontal member is fixed to the side plate. Accordingly, the two side plates are each provided with an insertion hole for allowing the coupling pin to pass therethrough at the same position.
[0006]
The tenon portion is projected from the back side to the front side (column side) by a press or the like, and the back side is formed in a tenon recess. The shape of the entire tenon portion may be a square cross section, an oval shape, or a circle. In any case, a coupling hole is provided at the bottom, and a long bolt with a neck or a long nut with a head is passed through the hole.
A long bolt with a neck (hereinafter sometimes simply referred to as a long bolt) does not cut the entire bolt part, but the part near the bolt head with a smooth surface and the thread on the tip side. The diameter is slightly larger than the (threaded portion). The diameter of the neck portion is made substantially equal to the diameter of the transverse through hole for inserting the bolt provided in the column for attaching the tenoned hardware to the column. Further, the combined length of the neck portion and the threaded portion of the long bolt with neck is shorter than the length of the transverse through hole.
[0007]
A long nut with a head (hereinafter, simply referred to as a long nut) includes a head and a nut portion, and the diameter of the nut portion is substantially equal to the diameter of the transverse through hole.
Then, both the height of the head of the long bolt with neck and the height of the head of the long nut with head are made lower than the depth of the tenon recess.
This joining apparatus is used as follows.
A mortise and a through hole for inserting a bolt are formed in the column. Align the mortise-attached hardware with the mortise and place it on the pillar and fix it with a long bolt with a neck and a long nut with a head. At this time, the long bolt with a neck is inserted from the tenon side of the mortise-attached hardware, the nut with the head is inserted from the opposite side of the column, and both are screwed together, and the long bolt with the neck is inserted from the opposite side of the column It may be inserted into the tenoned hardware side and screwed with a long nut with a head inserted into the tenon part of the tenoned hardware.
[0008]
In either case, the bolt head of the long bolt with neck and the head of the long nut with head in the tenon recess of the tenoned hardware do not protrude from the tenon recess. Moreover, it is unthinkable that the tip of the long bolt with a neck protrudes from the tenon recess or protrudes from the opposite surface of the column. Thereby, when joining a horizontal member to a pillar, the trouble which the edge part of a horizontal member collides and cannot be inserted is eliminated.
On the other hand, since a long nut with a head is used for a short bolt with a short neck, the diameter of the neck of the bolt and the outer diameter of the nut are almost equal to the diameter of the through hole through which these are inserted. Since the run-out and backlash with respect to the shaft are eliminated, the operation of screwing the long nut with the head into the long bolt with the neck is smooth.
[0009]
However, in the above case, the head of the long bolt with a neck or the long nut with a head protrudes on the surface of the column opposite to the mortise with the mortise. Therefore, a countersink hole is provided on the surface of the column opposite to the mortise with respect to the transverse through hole for inserting the bolt, and the depth thereof is greater than the height of the head of the long bolt with neck or the head of the long nut with head. It may be large and the size of the head sinking from the surface of the column. If it does in this way, the head of a long bolt or a long nut will not become a hindrance when attaching a board to the surface opposite to the mortise of a pillar.
A mortise hole is formed on both sides of the transverse through-hole for inserting the bolt, a mortise fitting is applied to both sides of the column, and the bolt is fixed with a common necked long bolt and headed long nut. In this case as well, the depth of the mortise of the mortise-attached hardware is set so that the head of the long bolt with neck and the head of the long nut with head do not protrude.
[0010]
The head of the long nut with a head may be an embedded washer with a blade. The diameter of the nut portion is made substantially equal to the diameter of the transverse through-hole, and the height of the head of the long bolt with a neck is made lower than the depth of the tenon recess, as described above. In this case, the long bolt with a neck is inserted from the mortise-attached hardware side, and the long nut inserted from the opposite side is screwed together while rotating with a tool. The embedded washer with blade that is screwed in while rotating, sinks in a way that it can counter-sink itself while cutting the column surface with the blade, and the top surface of this washer can be made flat with the column surface . Thereby, the effort which forms countersink in the column surface beforehand can be saved. In addition, there is no trouble of aligning a countersink in advance in accordance with the mortise on the opposite side.
[0011]
The head of the long bolt with a neck may be configured as an embedded washer with a blade. In this case, the long bolt with a neck is inserted from the surface of the column opposite to the tenoned hardware, and is screwed with the long nut with a head inserted from the tenon part of the opposite tenoned hardware. The long bolt with a neck provided with the embedded washer portion with the blade is screwed with the long nut while being rotated by the tool, and at that time, the pillar surface is countersunk by the blade. As a result, the top surface of the head of the long bolt with a neck can be made flat with the surface of the column. The effect is the same as when the head of the long nut with a head is provided with a blade.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows a structural portion in which a column 2 and a beam 3 (one of horizontal members) are joined using a joining device 1. In order to use the joining device 1, a transverse through hole 4 (FIG. 2), a mortise 5 (beam side), and a countersink hole 6 are formed in the column 2. The length of the transverse through hole 4 is d1, the depth of the mortise 5 is d2, and the depth of the counterbore 6 is d3. Two slits 7 and three coupling through-holes 8 (first to third coupling through-holes 8a, 8b, 8c) are formed in the transverse end of the beam 2 (see FIG. 3). Note that three coupling pins 9 (first to third coupling pins 9a, 9b, 9c) are inserted into these (described later).
The joining device 1 includes a tenoned hardware 10, a necked long bolt 11, and a headed long nut 12.
The connecting pin 9 is not included in the connecting device 1 of the present invention because it connects the connecting device 1 and the beam 3. Coupling can be done by bolts or, depending on the case, nailing, etc., regardless of pins. However, in order to join the column 2 and the beam 3 using the joining device 1 of this embodiment, a connecting pin or a connecting bolt instead of this is required.
[0013]
The column 2 is 105 × 105 cm square and the beam 3 is 105 × 180 cm square, and the end of the beam 3 is abutted on the side surface of the column 2 and joined at a right angle.
The mortise-equipped hardware 10 (FIG. 4) is formed by press-forming a 3.2 mm thick galvanized steel sheet, and has two side plates 13 and 13 and a front tenon portion 14. 13 includes a pin insertion hole 15 and a notch 16 at the same position, and the tenon portion 14 includes two coupling holes 17 at the top and bottom. The tenon portion 14 is formed by extruding a portion where the two side plates 13 and 13 are connected to each other by pressing from the back side so as to form a long oval container shape. ).
The entire molded tenoned hardware 10 is subjected to a strong rust prevention treatment on the surface by cationic electrodeposition coating.
[0014]
The long bolt 11 with a neck (FIG. 6) is formed by integrally forming a head 19, a neck 20 and a screw 21. The neck portion 20 has a slightly larger outer diameter than the screw portion 21, and the outer diameter is substantially equal to the diameter of the transverse through hole 4 provided in the column 2, and the necked long bolt 11 can be inserted into the transverse through hole 4 without play. it can. Further, the combined length of the neck 20 and the threaded portion 21 of the long bolt 11 with a neck is shorter than the length d1 of the transverse through hole 4 formed in the column 2 so as not to protrude into the mortise 5. Reference numeral 22 denotes a washer, which is used by being fitted into the counterbore 6 of the column 2 when the tenoned bracket 10 is pulled and fixed to the column 2 by the long bolt 11 with a neck. At this time, the head 19 of the necked long bolt 11 is prevented from protruding from the counterbore 6. That is, the depth d2 of the counterbore 6 is made larger than the dimension obtained by adding the height of the head 19 and the thickness of the washer 22.
The long nut 12 with a head (FIG. 6) includes a nut portion 23 and a head 24, and the head 24 is an outer hexagonal tool hook. The outer shape of the nut portion 23 is substantially the same as the diameter of the transverse through hole 4 formed in the column 2 as in the case of the long bolt 11 with a neck, and the long nut 12 with a head can be inserted into the transverse through hole 4 without play. . The height of the head 24 is smaller than the depth d3 of the mortise recess 18.
[0015]
Tensile metal 10 is attached to the surface of the column 2 where the beam 3 is joined, and the tenon portion 14 is fitted into the tenon hole 5 and applied, and the long bolts 11 and 11 with necks are attached to the transverse through holes 4 and 4. The column 2 is inserted from the side opposite to the side to which the beam 3 is joined, and a long nut 12 with a head inserted into the coupling hole 17 from the tenon recess 18 is screwed to the tip of the column 2. Secure to. The head 19 of the necked long bolt 11 and the head 24 of the headed long nut 12 do not protrude from the counterbore 6 or the mortise 5.
Next, the end of the beam 3 is moved from above the tenoned hardware 10, the side plate 13 is inserted into the slit 7, and the beam 3 is dropped into the tenoned hardware 10 and attached. At this time, the first coupling pin 9a (FIG. 3) is inserted into the first coupling through hole 8a of the beam 3 in advance, and when the beam 3 is attached to the tenoned hardware 10, the coupling pin 9a The beam 3 engages with the notch 16 of the side plate 13 and is in a temporarily fixed state where the beam 3 does not fall even if the hand is released. For this reason, the operation of connecting the beam 3 and the mortise-attached hardware 10 by driving the second and third connection pins 9b and 9c into the second and third connection through holes 8b and 8c, which is the subsequent operation, is performed. It is done safely and efficiently with both hands. The coupling pins 9b, 9c to be inserted into the coupling through holes 8b, 8c are installed through the insertion holes 15b, 15c formed in the two side plates 13, 13 (the insertion hole 15a is Notch 16 is not shown).
[0016]
The beam 3 is attached to the column 2 as shown in this example, in addition to attaching the beam to one side surface of the column 2 at a right angle, the beam 3 may be joined to both sides of the column 2 (FIG. 9 2nd). Embodiment). In this case, the tenoned hardware 10 of the joining device 1 is attached to both sides of the column 2, but the long bolt 11 with a head and the long nut 12 with a head for fixing these to the column 2 with respect to both the tenoned hardware 10. Can be common to fix them all at once.
Furthermore, the tenoned hardware 10 may be attached to each of the four surfaces of the column 2 at the same height position (third embodiment in FIG. 10). In this case, the necked long bolt 11 that joins the left and right tenoned hardware 10 and the necked long bolt 11 that joins the front and rear tenoned long bolts 10 intersect in the column 2. By shifting the position of the coupling hole 17 provided in the tenon portion 14 in the vertical direction, it is possible to prevent the long bolts from colliding with each other inside the column.
[0017]
FIG. 7 shows a fourth embodiment, which is characterized by the form of the necked long bolt 11. Other configurations are the same as those of the first embodiment. The long bolt 11 with a neck is configured as a bolt with a washer, and the head 19 is formed as a saddle-shaped embedded washer 25 with a blade having a conical shape on the neck 20 side toward the neck 20. A stepped blade 26 extending in the radial direction is provided on the conical surface of the embedded washer portion 25. The top surface of the embedded washer 25 is flat and has an outer hexagonal and inner hexagonal tool hook 27 that matches a commercially available rotary tool.
As in the case of the first embodiment, the mortise portion 14 is fitted into the mortise 5 of the column 2 and the hardware 10 with the mortise is applied, and the headed long nut 12 is inserted through the coupling hole 7 of the mortise 14. From the opposite side, the long bolt 11 with a neck according to the second embodiment is inserted and screwed. At this time, the long bolt 11 with the neck is rotated by the tool engaged with the tool hooking portion 27 of the embedded washer portion 25 with the blade, and is screwed together with the blade 26 while counter-spinning the column surface. For this reason, it is possible to save the trouble of pre-setting the column surface. In addition, it is possible to save the need to adjust the positional relationship with the mortise 5 when the counterbore 6 is formed in advance, and to insert a washer as a separate part when attaching a long bolt.
[0018]
FIG. 8 shows a fifth embodiment, which is characterized in that the head 24 of the long nut 12 with a head is configured as an embedded washer portion 25 with a blade. The washer portion 25 has an outer hexagonal and inner hexagonal tool hook portion 27 on the top surface side, and a stepped blade 26 on a conical surface. The other points are not different from the first embodiment. The headed nut 12 is inserted from the side of the column 2 opposite to the side on which the tenoned hardware 10 is attached, and is screwed to the tip of the long bolt 11 with neck inserted from the tenon part 14 of the tenoned hardware 10. Use. Since the embedded washer portion 25 with a blade contacts the column surface while rotating at the time of screwing, it is installed in a state where it is countersunk and embedded.
[0019]
【The invention's effect】
According to the configuration of the first aspect, when the long bolt for fixing the tenoned hardware to the column is provided with a neck, the long bolt is displaced on the distal end side and is difficult to be screwed with the counterpart long nut. It is possible to avoid the fact that the long bolt is inclined and fixed by eliminating the looseness. With a long nut attached to the head, it can be used as it is even without a special washer. In particular, it eliminates the need to fit the washer when installing it in the tenon recess of a tenoned hardware. Efficiency can be improved.
By making the combined length of the neck and thread in the long nut with neck shorter than the length of the transverse through hole provided in the column, it is possible to completely prevent the long nut from protruding from the tenon recess it can. Moreover, even if it shortens in this way, since a long nut with a head is used, screwing with a nut does not become difficult. Furthermore, since the head of the long nut with the head and the head of the long nut with the head do not protrude from the mortise, there is no trouble such as collision when the end of the beam is mounted.
[0020]
According to the configuration of the second aspect, the heads of the long bolts and long nuts do not protrude from the counterbore holes, which hinders the attachment of the plate or the like to the column surface opposite to the side on which the horizontal member such as a beam is attached. Don't come.
According to the structure of Claim 3, the joining location of the horizontal member with respect to a pillar can be comprised simply, and since there are few long bolts to penetrate, there are few damages to the intensity | strength of a column or horizontal member.
According to the structure of Claim 4 and Claim 5, since the head of a long volt | bolt or a long nut is made into the embedded washer part with a blade, when inserting and using these from the column surface on the opposite side to a metal fitting with a tenon In addition, the embedded washer portion with the blade can perform the set-up operation by itself, thereby saving the trouble of providing the set-up on the column surface in advance. Moreover, the operation | work which positions with respect to the mortise | mouth on the opposite side required when forming a countersink beforehand can also be skipped.
[Brief description of the drawings]
FIG. 1 is a front view (partial cross section) showing a bonding apparatus in a transparent manner.
FIG. 2 is a front view of a cross-section showing processing applied to a column. FIG. 3 is a perspective view showing a state of processing applied to a beam and a connecting pin. FIG. 4 is a perspective view of a tenoned hardware. 4 is a cross-sectional view taken along line AA of FIG. 6. FIG. 6 is a perspective view showing a long bolt with a neck, a washer and a long nut with a head. FIG. 7 is a perspective view of the long bolt with a neck (fourth embodiment).
FIG. 8 is a perspective view of a long nut with a head (fifth embodiment).
FIG. 9 is a front view illustrating a case where two joining devices are used (partial cross-sectional view of a second embodiment).
FIG. 10 is a perspective view showing an example of a tenoned hardware when four joining devices are used at the same height position (third embodiment).
[Explanation of symbols]
1 Joining device 2 Column 3 Beam (horizontal material)
4 transverse through hole 5 mortise 6 countersink hole 7 slits 8a, 8b, 8c first to third coupling through holes 9a, 9b, 9c first to third coupling pins 10 mortise fitting 11 neck length Bolt 12 Long nut 13 with head 13 Side plate 14 Tenon portion 15 Insertion hole 16 Notch 17 Joint hole 18 Tenon recess 19 Head (of bolt)
20 Neck 21 Thread 22 Washer 23 Nut 24 Head (Nut)
25 Embedded washer with blade 26 Blade 27 Tool hook

Claims (5)

It consists of a mortise fitting, a long bolt with a neck and a long nut with a head. The mortise fitting is provided with two side plates and a front tenon unit, and each side plate has an insertion hole at the same position. It is projected from the side to the front side, the back side is formed as a tenon recess, and the bottom is provided with a coupling hole, and the long bolt with a neck is the diameter of the transverse through hole for bolt insertion provided in the column The length of the neck portion and the screw portion is made shorter than the length of the transverse through hole, and the long nut with a head has the diameter of the nut portion substantially equal to the diameter of the transverse through hole. , Yes and the height and headed length height of the head of the nut of the head of the necked-length bolts rather lower both than the depth of the tenon recess, a through hole is formed for mortise and bolt insertion pillars , Align the mortise-attached hardware with the mortise and place it on the pillar Doo and fixed with the headed length nut, pillars and horizontal members joining apparatus which is characterized in that to fix the laterally placed material tenon with hardware. A countersink hole is formed deeper than the height of the head of the long bolt with head or the head of the long nut with head on the surface of the column opposite to the mortise for the transverse through hole for bolt insertion The column and horizontal member joining apparatus according to claim 1, wherein: The tenon hole is formed in both sides with respect to the transverse through hole for bolt insertion, and the tenoned hardware is fixed to the both sides of the column with a common long bolt with a neck and a long nut with a head. Column and horizontal joint joining device. It consists of a mortise fitting, a bolt with a neck and a long nut with a head. The mortise fitting has two side plates and a front tenon, and each side plate has an insertion hole at the same position. Projecting from the side to the front side, the back side is formed as a tenon recess, with a fixing hole at the bottom, and the long bolt with a neck is the diameter of the transverse through hole for bolt insertion provided in the column The length of the neck portion and the screw portion is made shorter than the length of the transverse through hole, and the long nut with a head is configured as an embedded washer with a blade and the diameter of the nut portion. The column and the horizontal member are joined to each other, in which the diameter of the head of the long bolt with a neck is made lower than the depth of the tenon recess. apparatus. It consists of a mortise fitting, a bolt with a neck and a long nut with a head. The mortise fitting has two side plates and a front tenon, and each side plate has an insertion hole at the same position. Projecting from the side to the front side, the back side is formed as a tenon recess, with a fixing hole at the bottom, and the long bolt with a neck is the diameter of the transverse through hole for bolt insertion provided in the column The length of the neck portion and the screw portion is made shorter than the length of the transverse through hole, and the long bolt with a neck is configured as an embedded washer portion with a blade and the diameter of the neck portion. Column and horizontal member joining apparatus characterized in that they are substantially equal to the diameter of the transverse through-hole and the height of the head of the long nut with head is made lower than the depth of the tenon recess. .

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