JP4948984B2 - Connector - Google Patents

Description

  The present invention relates to a connector used when two members are joined in a wooden building.

  In the construction of wooden buildings such as houses, the conventional construction method (wooden frame construction method) that composes a skeleton by combining members such as columns and beams has been popular in Japan for a long time. In this conventional construction method, in order to secure the strength of the building, it is necessary to increase the rigidity of the portion where the members such as columns and beams are joined together, and measures such as using a tenon have been taken for a long time. However, at present, various hardware is often used for the purpose of simplifying processing and reducing cross-sectional defects.

  In recent years, solid wood is not used for members such as pillars, and laminated wood is often used instead. Glued wood has many advantages such as the ability to select a wide range of timbers, which enables effective use of forest resources, and has excellent strength and durability with little variation in properties. As an example of the form of the laminated lumber, there is a product having a H-shaped cross section (for example, TJI Joyst, which is a product of U.S. Warehauser). Such a laminated material having an H-shaped cross section is superior in strength in the height direction as compared with the weight, and it has been studied to use it for a horizontally laid beam or a large pull even in a conventional construction method.

  In addition, many members with a relatively small cross-sectional area, such as joists that support the floorboard, are used in conventional construction methods. When additional processing such as slits or holes is performed on such a small cross-section member, a problem in strength may occur due to a cross-sectional defect. Therefore, when joining a member having a small cross section to a beam or the like, a stool metal that does not require additional work is often used. This stool is U-shaped to receive both side surfaces and the bottom surface of the member, and a nail is used to fasten the hardware and the member.

The laminated material having the H-shaped cross section as described above is composed of a flange positioned above and below and a web connecting the upper and lower flanges, and the cross-sectional shape is significantly different from that of a conventional bar. For this reason, when using laminated materials with H-shaped cross-sections in the conventional construction method, it is difficult to divert various types of hardware that are widely used in addition to traditional methods such as hozo. It is necessary to consider the method. In addition, it is necessary to consider that the laminated material having an H-shaped cross section has no waste in shape, and the strength tends to decrease due to inappropriate processing. In addition, the following patent documents are disclosed as an apparatus for joining a member having an H-shaped cross section to a column. In this technique, since the slit is formed at the end of the composite beam having the H-shaped cross section, there is a possibility that the strength is locally reduced.
Japanese Patent Laid-Open No. 63-261028

  In addition, when a member with a small cross section such as joist is joined to a beam or the like via a sitting hardware, the number of nails connecting the hardware and the member is limited because the member has a small cross section, and the rigidity of the joint is insufficient. Cheap. For this reason, floor noise may occur as the resident walks, and excessive loads may be applied to the periphery of the nail, causing cracks in the member. Further, since the sitting hardware is U-shaped as described above and has a structure for receiving the member therein, the inner width of the hardware is often set slightly wider in consideration of the dimensional error of the member. However, since the metal part and the side surface of the member are separated by widening the inner width, the rigidity of the joint may be reduced.

  The present invention was developed based on such circumstances, and when joining a branch member such as a laminated member or joist having an H-shaped cross section to a trunk member, the rigidity of the joint portion is secured after absorbing the dimensional error of the branch member. The purpose is to provide a connector that can be used.

  The invention according to claim 1 for solving the above-mentioned problem is a connecting tool used when constructing a T-shaped joint by abutting the end face of the branch member against the side surface of the trunk member, A front plate fixed to the side surface of the trunk member; two horizontal plates extending perpendicularly from both ends of the front plate and along the side surface of the branch member; and the two horizontal plates placed on the bottom surface of the branch member A lower plate to be coupled, and a band plate for coupling the outer surface of the horizontal plate and the side surface of the branch member via a coupling means, wherein the coupling means includes the band plate and the horizontal plate It consists of a coupler that penetrates and integrates the branch member, and nails that fix the strip and the branch member, and the hardware and the branch member are integrated through the strip. It is a connecting tool.

  Both the trunk member and the branch member are wood processed into a rod shape, and the trunk member assumes a rectangular cross section, but the branch member may have an H-shaped cross section other than the rectangular cross section. And the coupling tool by this invention is used for the T-shaped joining part which abuts the end surface of a branch member on the side surface of a trunk member, and has a function which integrates a branch member firmly.

  The basic shape of the hardware used in the present invention is not significantly different from that of the conventional one. The front plate is in contact with the side surface of the trunk member and extends at right angles from both ends of the front plate, along the side surface of the branch member. The left and right horizontal plates and a lower plate extending horizontally so as to connect the bottoms of the two horizontal plates are connected to each other so as to surround the ends of the branch members when viewed from above. It is in the shape of a letter. The lower plate has a function of receiving a load by contacting the bottom surface of the branch member, and a nail or the like can be driven from the lower plate toward the branch member as necessary. One lateral plate does not necessarily need to contact the side surface of the branch member, and a certain amount of clearance is allowed. Therefore, even when the branch member is wider than specified due to a processing error or the like, the branch member can be sandwiched between the two horizontal plates without any problem. Further, the front plate is not only in contact with the side surface of the trunk member, but can also be provided with a tenon or the like as needed for positioning the hardware.

  The fixing means has a function of integrating the hardware and the trunk member, and a specific form thereof can be freely selected. As an example of the fixing means, a bolt that penetrates from the front plate of the hardware to the side surface of the trunk member is inserted, and a nut is screwed to the tip of this bolt to integrate both, or from the front plate to the trunk member There are those that drive multiple nails toward.

  The band plate has a function of integrating the branch member and the hardware, and is a long and narrow rectangular plate made of a steel plate or the like. Also contact. The coupling means is a series of articles used to fix the strip. And a strip is pinched | interposed with the coupling tool of a coupling | bonding means, and is integrated with a metal object by closely_contact | adhering to a horizontal plate. Specific examples of the coupler include a bolt and a nut, and a large hole for inserting the bolt is formed near one end of the strip. The band plates are used symmetrically from the viewpoint of securing strength and balance, and in addition to using only one set of left and right for one piece of hardware, a plurality of sets may be used in the vertical direction. In addition, since a step is generated between the outer surface of the lateral plate and the side surface of the branch member, it is preferable to bend the vicinity of the center of the band plate in advance.

  As described above, the bolt and nut as a coupling tool have the function of integrating the metal plate and the branch member as well as the band plate, and the holding plate for inserting the bolt is concentric on the left and right sides of the metal horizontal plate. It is necessary to form a shaft hole for allowing the bolt to pass through the branch member at the lumbering stage. Therefore, after bringing the band plate into contact with the outer surface of the horizontal plate, the bolt is inserted and the nut is screwed and tightened at the stage where the opposite side plate is passed through the hardware and the branch member. The plate and hardware come into close contact with each other to integrate. When the horizontal plate and the branch member are separated from each other, the horizontal plate may be deformed by tightening the bolt, and the horizontal plate and the branch member may come into contact with each other, but it is not always necessary to bring both into contact.

  The nails of the coupling means have a function of integrating the strip and the branch member, and are driven from the strip toward the branch member. As a specific example of these nails, screw nails may be used in addition to simple nails. From the standpoint of strength and reliability, a plurality of nails should be used in a single strip. A small hole for driving nails is formed in the band plate.

  With this configuration, the hardware and the branch member are integrated via the strip, so that the load acting on the branch member is transmitted to the hardware via a plurality of nails driven in the strip. I will do it. Therefore, it is possible to prevent the load from being concentrated in a narrow range of the branch member, and even when the branch member is a laminated material having an H-shaped cross section, the load can be efficiently received by arranging the strip along the flange. Even when the horizontal plate of the hardware and the branch member are separated, the rigidity of the joint portion can be ensured by bending the band plate and making surface contact with the branch member.

  The invention according to claim 2 is characterized in that the lateral plate of the hardware includes a tongue piece for elastically pressing the side surface of the branch member, and the branch member is restrained by the tongue piece. Item 10. The connector according to Item 1. Here, the tongue piece is obtained by plastically deforming a part of the horizontal plate toward the inside of the hardware, and needs to be deformed so that it can contact the branch member with a margin. The tongue piece can be formed on both the left and right lateral plates, but may be formed only on one side as long as a predetermined function can be exhibited. Further, the shape of the tongue piece is arbitrary, such as one that extrudes a part of the horizontal plate and protrudes in a half-moon shape, or one that protrudes in a branch shape.

  With this configuration, the branch member can be elastically constrained by the tongue piece, and even when there is an error in the width of the branch member, the tongue piece can surely press the branch member. Loads and vibrations acting in the direction can be reliably absorbed.

  As in the first aspect of the invention, the load acting on the branch member is received in a wide range of the hardware and the band plate by a coupling tool that interposes the band plate in addition to the metal object for joining the trunk member and the branch member. It is possible to prevent the load from concentrating in a narrow range. Therefore, when using a laminated material having an H-shaped cross section as the branch member, the load acting on the flange is efficiently received by arranging the strips along the flanges located above and below the branch member. In addition, the branch member only needs to be additionally machined in the flange with a shaft hole for inserting a bolt (connector), and no additional machining is required for the thin web. Even when a member having a relatively small cross section such as joist is used, the rigidity of the joint portion is improved by arranging the band plate along the longitudinal direction, so that problems such as flooring and cracking can be prevented. Moreover, by interposing the strip as in the present invention, it becomes possible to set the inner width of the two horizontal plates wider than specified, and after absorbing the dimensional error of the width of the branch member, Since the strip is deformed and comes into surface contact with the branch member, the rigidity of the joint portion is not lowered.

  By forming a tongue piece that elastically presses the branch member as in the second aspect of the invention, the load acting in the width direction of the branch member can be supported by simply inserting the branch member into the hardware. In addition, it can absorb vibrations and prevent problems such as floor noise. Moreover, since the tongue piece elastically presses the side surface of the branch member, it is not affected by the dimensional error in the width of the branch member.

  FIG. 1 is a perspective view showing the configuration of a connector according to the present invention, FIG. 1 (A) shows the overall configuration, and FIG. 1 (B) shows the hardware 11 depicted in FIG. 1 (A). The shape on the opposite side is shown. The connector according to the present invention is used for joining a trunk member M having a rectangular cross section and a branch member B having an H-shaped cross section, and an end surface of the branch member B contacts the side surface of the trunk member M to form a T-shaped joint. It is composed. In addition, the branch member B is comprised from the rod-shaped flange F located up and down, and the web W which connects this up-and-down flange F. As shown in FIG. 1A is a U-shape when viewed from above, and a central portion that contacts the side surface of the trunk member M is a front plate 12 that extends at right angles from both sides of the front plate 12. It is the horizontal plate 13, and the lower plate 14 connects the bottoms of the left and right horizontal plates 13.

  The front plate 12 is formed with two cylindrical ridges 15 so that accurate positioning with the trunk member M can be performed. The hole 41 is processed. However, since the positioning can only be performed by simply inserting the tenon 15 into the tenon hole 41, a fixing means is also required to integrate the two. This fixing means is composed of a fixing bolt 31 and a fixing nut 32. After combining the tenon 15 and the tenon hole 41, the fixing bolt 31 is inserted from between the two horizontal plates 13, and the tip portion thereof. After reaching the opposite surface, the fixing nut 32 is screwed and tightened to integrate both. In addition, in order to insert the fixing bolt 31, the inside of the tenon 15 is hollow, and a hole 16 for allowing the threaded portion of the fixing bolt 31 to pass through is formed in the center. Further, a drill hole 42 and a counterbore hole 43 are processed in the trunk member M concentrically with the side hole 41.

  Next, the space | interval which can accommodate the branch member B in the space | interval between the two horizontal plates 13 extended at right angles from the front board 12 is ensured. Therefore, when the end of the branch member B is inserted into the metal part 11, if the width of the branch member B is larger than the specified value, it closely adheres to the inner surface of the horizontal plate 13. In any case, there is no problem. The coupling bolt 34 is for fixing the branch member B inserted into the hardware 11 and penetrates the belt plate 21, the hardware 11 and the branch member B. Therefore, the horizontal plate 13 of the hardware 11 is formed with holding holes 17 for allowing the coupling bolts 34 to pass left and right symmetrically, and the upper flange F of the branch member B is processed with a shaft hole 44 penetrating the side surface. Has been. Although three sets of holding holes 17 are formed in the vertical direction, only the uppermost set is used in this figure. After the coupling bolt 34 is inserted into a predetermined location, the metal nut 11 and the branch member B are integrated via the coupling bolt 34 when the coupling nut 35 is screwed into the front portion.

  The lower plate 14 of the hardware 11 is in contact with the bottom surface of the branch member B and directly receives the load, and a stop hole 18 is formed to integrate the hardware 11 and the branch member B. By driving the retaining nail 33 from the retaining hole 18 toward the bottom surface of the branch member B, the branch member B can be supported more firmly. The nail 33 is a normal nail, but a screw nail may be used.

  The band plate 21 is a rectangular steel plate that contacts the lateral plate 13 of the hardware 11 and the side surfaces of the branch member B, and is arranged symmetrically. However, the belt plate 21 is not necessarily disposed so as to be sandwiched between the inner side of the horizontal plate 13 and the side surface of the branch member B, but is disposed only on the outer side of the horizontal plate 13. In addition, a large hole 22 for inserting the coupling bolt 34 and a small hole 23 for inserting the nails 36 are formed in the band plate 21, and a step between the hardware 11 and the branch member B is further formed. The center is bent so that it can absorb and contact both. Therefore, the band plate 21 is sandwiched between the coupling bolt 34 and the coupling nut 35 and integrated with the hardware 11, and the nails 36 are driven from the small hole 23 toward the flange F of the branch member B, so that the branch member B is driven. Also integrated. It should be noted that a plurality of nails 36 should be used for one band plate 21 in order to receive the load as dispersedly as possible.

  The tongue piece 19 is obtained by plastically deforming a part of the horizontal plate 13 in an arch shape inward, and is formed symmetrically. The shortest distance between the two opposing tongue pieces 19 is that of the branch member B. It is narrower than the width of the flange F. Therefore, when the branch member B is inserted into the hardware 11, the side surface of the branch member B is elastically constrained by the tongue piece 19, so that the load and vibration acting in the horizontal direction can be absorbed. Note that the branch member B having an H-shaped cross section may have extremely low rigidity in the horizontal direction as compared to the vertical direction, and there is a risk that floor noise will occur after the building is completed, but this can be suppressed by the tongue piece. Moreover, even when the flange contracts over time, the restraint state can be maintained by the elasticity of the tongue.

  2 shows a state in which the trunk member M and the hardware 11 shown in FIG. 1 are integrated, FIG. 2 (A) is a perspective view, and FIG. 2 (B) is a longitudinal sectional view of a central portion. In carrying out the present invention, the joining of the trunk member M and the hardware 11 can be performed in a factory such as a sawmill, and the work time at the site can be shortened. After combining the tenon 15 formed on the front plate 12 of the metal 11 and the tenon hole 41 processed on the side surface of the trunk member M, the fixing bolt 31 is inserted from the inside of the metal 11, and the tip When the fixing nut 32 is screwed and tightened when the portion reaches the counterbore hole 43 of the trunk member M, the hardware 11 is completely integrated with the trunk member M. As shown in FIG. 2B, the head of the fixing bolt 31 is housed inside the hozo 15, so that the branch member B and the fixing bolt 31 do not come into contact with each other, and the end surface of the branch member B is made of metal. 11 front plates 12 can be brought into contact with each other.

  3 supplements FIG. 1, FIG. 3 (A) is a perspective view showing a joined state of the metal piece 11 and the branch member B, and FIG. 3 (B) is a ZZ cross section of FIG. 3 (A). FIG. 3C is a perspective view showing a state where the joining of the trunk member M and the branch member B is completed. In FIG. 3A, only the hardware 11 and the branch member B are integrated, but in reality, after integrating the trunk member M and the hardware 11, the hardware 11 and the branch member B are integrated. It does not take the form shown in the figure. The branch member B inserted into the hardware 11 is joined to the hardware 11 by the connecting bolt 34 and the band plate 21, and the horizontal load acting on the branch member B is not only one connecting bolt 34 but also the left and right A total of four nails 36 are received. By using a plurality of nails 36 in this manner, the load acting on the upper flange F can be dispersed and transmitted to the hardware 11, and an excessive load does not act on a narrow region of the flange F. The vertical load acting on the branch member B is mainly supported by the lower plate 14.

  Further, as shown in FIG. 3B, the horizontal plate 13 of the hardware 11 and the side surface of the branch member B are separated from each other, but the upper flange F is constrained via the band plate 21 and is opposed to the lower side. The flange F is sandwiched between the tongue pieces 19 on both the left and right sides to suppress the branch member B from swinging in the horizontal direction. In particular, the branch member B having an H-shaped cross section has low rigidity in the horizontal direction and is likely to cause floor noise. However, when it is sandwiched between the tongue pieces 19, vibration can be efficiently absorbed and construction work is also easy. . In the present invention, as shown in FIG. 3 (C), it is possible to adopt a configuration in which the hardware 11 or the like does not protrude at all on the upper surfaces of both members M and B, which is excellent when a floor board or the like is directly laid.

  FIG. 4 shows various embodiments of the present invention. FIG. 4 (A) is a perspective view when two sets of upper and lower connecting bolts 34 are used after the branch member B having a rectangular cross section is used. 4B is a cross-sectional view when the horizontal plate 13 of the metal object 11 is used by being deformed, and FIG. 4C is a cross-sectional view when the tongue piece 19 is formed only on one side. As shown in FIG. 4A, the connecting member according to the present invention can be used as the branch member B without any problem even with a bar having a rectangular cross section. Further, a plurality of coupling bolts 34 can be used as shown in the figure. Further, as shown in FIG. 3 (B), the horizontal plate 13 of the metal object 11 is bent and the side surface of the branch member B is separated, and the horizontal plate 13 is bent as shown in FIG. 4 (B). It is possible to sandwich the upper flange F. Further, as shown in FIG. 4C, the tongue piece 19 can be formed only on one side, and in addition, the tongue piece 19 can be formed in a shape protruding in a branch shape as shown.

  FIG. 5 is a perspective view showing an example of the fixing means. The joining of the trunk member M and the hardware 11 can be freely selected other than the form shown in FIG. 1, and a simple structure may be used if there is no problem in strength. Therefore, as shown in this figure, a round bar 20 for positioning is formed on the front plate 12 of the hardware 11, and a pair of round holes 45 are formed in one trunk member B, and the round hole 45 is rounded. After inserting 20, when a fixing nail 37 as a fixing means is driven through the nail hole 24, the trunk member M and the hardware 11 are joined. In the figure, the band plate 21 and the connecting bolt 34 are omitted, but in actuality, they are used in the same manner as in FIG. In this figure, the round bar 20 is used for positioning the trunk member M and the hardware 11, but the round bar 20 and the round hole 45 are not necessary if a predetermined strength can be ensured only by the fixing nail 37. The fixed nail 37 can be freely selected from a normal nail and a screw nail.

It is a perspective view which shows the structure of the connector by this invention, (A) has shown the whole structure, (B) has shown the shape of the other side of the metal object drawn by (A). The state which integrated the trunk member shown in FIG. 1 and the metal object is shown, (A) is a perspective view, (B) is a longitudinal cross-sectional view of a center part. 1A is a perspective view showing a joined state of a hardware and a branch member, FIG. 1B is a sectional view taken along the line ZZ of FIG. 1A, and FIG. 1C is a trunk member and a branch member. It is a perspective view which shows the state which the joining with was completed. 1A and 1B show various exemplary embodiments of the present invention, in which FIG. 1A is a perspective view when two sets of connecting bolts are used on the top and bottom of a branch member having a rectangular cross section, and FIG. It is sectional drawing at the time of deform | transforming and using, (C) is sectional drawing at the time of forming a tongue piece only in one side. It is a perspective view which shows the example of a form of a fixing means.

Explanation of symbols

11 Hardware 12 Front plate 13 Horizontal plate 14 Lower plate 15 Hozo 16 Hole 17 Holding hole 18 Stopping hole 19 Tongue piece 20 Round bar 21 Strip plate 22 Large hole 23 Small hole 24 Nail hole 31 Fixing bolt (fixing means)
32 Fixing nut (fixing means)
33 Peg 34 Coupling bolt (joint means / joint)
35 coupling nut (coupling means / joint)
36 Nails (Coupling means)
37 Fixing nails (fixing means)
41 Side hole 42 Drill hole 43 Counterbore hole 44 Shaft hole 45 Round hole M Trunk member B Branch member F Flange W Web

Claims (2)

A connecting tool used when constructing a T-shaped joint by abutting the end face of the branch member (B) against the side surface of the trunk member (M),
The front plate (12) fixed to the side surface of the trunk member (M) by the fixing means (31, 32), and two pieces extending perpendicularly from both ends of the front plate (12) and along the side surface of the branch member (B) A hardware (11) comprising a horizontal plate (13) and a lower plate (14) on which the bottom surface of the branch member (B) is placed and connected to the two horizontal plates (13);
A band plate (21) for coupling the outer surface of the horizontal plate (13) and the side surface of the branch member (B) via a coupling means;
With
The coupling means includes a coupling member (34, 35) that penetrates and integrates the strip plate (21), the lateral plate (13), and the branch member (B), and the strip plate (21) and the branch member (B). And nail (36) for fixing
A coupling tool characterized in that the metal piece (11) and the branch member (B) are integrated with the strip (21) interposed. The horizontal plate (13) of the hardware (11) is provided with a tongue piece (19) for elastically pressing the side surface of the branch member (B), and the branch member (B) is formed by the tongue piece (19). The coupling tool according to claim 1, wherein:

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