JP5847113B2 - Wood fittings - Google Patents

Description

  The present invention relates to a wood joining metal fitting for joining a building wood such as a wooden pillar and a connecting wood such as a wooden beam.

  As a conventional wood joining structure, for example, as disclosed in Japanese Patent Application Laid-Open No. 2000-104343 (Patent Document 1), there is a structure using a U-shaped joining metal fitting having a U-shaped cross section.

  Specifically, a mounting plate that abuts and fixes to the peripheral surface of a building wood such as a vertical member (column), and a connecting wood such as a cross member (beam or girder) that protrudes from the mounting plate. A U-shaped joining bracket having a U-shaped cross section composed of a pair of right and left joint plate parts joined and connected to the slit of the end portion of the joint is used.

  In this joining bracket, the mounting plate portion is provided with a plurality of bolt holes penetrating the mounting bolts penetrating and projecting from the side surface of the building wood in the vertical direction. Respectively, an engagement hole for inserting a locking body (drift pin) that is inserted into and fixed to an engagement hole formed in the joint portion as an end portion of the connecting wood, and the engagement of the joint portion A jaw hooking concave portion is provided for connecting the uppermost position locking body inserted and fixed in the hole into a hooked state.

  For example, first, the mounting plate portion of the joint metal fitting is abutted and fixed to the side surface (circumferential surface) of the building wood with a mounting bolt penetrating through a bolt hole provided between the opposing side surfaces of the building wood.

  Next, a locking body that is inserted and locked in advance in the uppermost locking hole of the joint portion while the joint plate portion of the joint metal fitting is inserted and disposed in the slit of the joint portion of the connecting wood. Is placed and supported on the jaw hanging recess from above and connected to the latched state.

  Thereafter, the remaining insertion hole of the joint portion and the engagement hole of the joint plate portion are communicated to fix the locking body, and the joint plate portion is joined to the joint portion of the connecting wood. In this structure, the building wood and the connecting wood are joined at a right angle or in an inclined state.

  Conventionally, for example, as disclosed in Japanese Patent Application Laid-Open No. 2004-108030 (Patent Document 2), one having a T-shaped cross section and a single joining plate portion has been implemented.

JP 2000-104343 A JP 2004-108030 A

  There is a demand for cost reduction in this kind of wood joint metal fittings.

  The most effective way to reduce costs is to reduce the amount of material used by reducing the thickness of the bracket.

  However, there is a concern about insufficient strength if the metal fitting is thinned, and the pair of left and right joint plates are originally designed to have a thickness corresponding to the slit width of the joint, so the thin joint plate In such a case, the joint rattles in the direction perpendicular to the length direction of the connecting wood within the slit of the joint, and sufficient joining accuracy cannot be ensured. This rattling problem can be solved by narrowing the slit width in accordance with the thinning of the joint plate, but the shape of the lumber used for this type of joint fitting is also being standardized. Therefore, the current situation is that the slit width cannot be easily changed.

  The present invention was developed to meet the above-mentioned demand for cost reduction, and the strength is improved while the structure is designed to reduce the cost by reducing the thickness of the metal fittings. It is intended to provide a wood joining metal fitting that is less likely to rattle against the slits and can ensure the same joining accuracy as a conventional product.

  The gist of the present invention will be described with reference to the accompanying drawings.

A wood joining metal fitting A for joining a building wood 1 and a connecting wood 2 provided with a joint portion 3 at an end portion at a right angle or in an inclined state, and in contact with the peripheral surface portion of the building wood 1 It consists of a mounting plate portion 5 to be attached and a joint plate portion 6 which is inserted into the slit 4 of the joint portion 3 of the connecting wood 2 and joined and connected, and the mounting plate is obtained by bending one plate material. In the wood joining bracket A configured such that the joint plate portion 6 bends and protrudes from the portion 5, the thickness of the joint plate portion 6 is set to be thinner than the slit 4 width of the joint portion 3. The plywood part 6 is integrally formed with a ridge 7 in which one side plate surface of the joint plate part 6 is recessed so that the other side plate surface is projected, and the other side plate of the joint plate part 6 of the ridge 7. The projecting degree with respect to the surface is such that the thickness of the joint plate portion 6 including the ridge 7 matches the width of the slit 4 of the joint portion 3. The protrusion 7 is set to a degree of protrusion to be a thickness, and the protrusion 7 is in contact with the inner surface of the slit 4. The protrusion 7 is continuous in the bending protrusion direction of the joint plate portion 6 with respect to the mounting plate portion 5. The horizontally elongated ridges 7A and the vertically elongated ridges 7B continuous in the vertical direction of the joint plate portion 6 are formed in a continuous shape, and the horizontally elongated ridges 7A and the vertically elongated ridges 7B are connected to the joint plate portion 6 It is formed in the center side which avoided the peripheral part of this, The board thickness dimension of the peripheral part of this joint board part 6 was comprised so that it might be thinner than the slit 4 width | variety of the said connection part 3. This relates to the joint fitting.

Since the present invention is configured as described above, the joint plate portions can cost by thinning, handling it becomes easy to be lighter by thinning, also depending on the convex strip integrally molded to the joint plate portion while thinning no concern of insufficient strength to joint plate portion is reinforced, moreover, play this convex strip is, joint plate portions to serve to fill the gaps formed slit of joint plate portion and the joint portions in the slit without attached, it can be ensured conventional equivalent bonding accuracy and, moreover, the projecting article, such as a metal stamping or the like is excellent in easily formable mass production of the joint plate portions, extremely excellent in practicality It becomes a wood joint fitting.

Further, in the present invention , the joint plate portion can be effectively reinforced with high strength, and the structure of the ridge that can satisfactorily prevent rattling in the slit can be easily designed and realized, which is more practical. It becomes a wood joint metal fitting of the composition.

It is a perspective view which shows a present Example . It is a partial expanded plane sectional view of a present Example . It is a disassembled perspective view which shows all the components required in the joining operation | work of the wood for construction (vertical material) and the wood for connection (cross member) using a present Example . It is a plane sectional view showing the joined state of wood using this example . It is a disassembled perspective view which shows all the components required in the joining operation | work of the construction wood (cross member) and the connection wood (cross member) using a present Example . It is a perspective view which shows the structural example 1. FIG. It is a perspective view which shows the structural example 2. FIG. It is a perspective view which shows the structural example 3. FIG.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  In the joining metal fitting A of the present invention, the thickness of the joint plate portion 6 is set to be thinner than the slit 4 width of the joint portion 3.

  That is, the joint plate portion 6 can be reduced in thickness to reduce the cost, and the thickness can be reduced in weight to improve handling.

Moreover, although this thinned joint plate part 6 has a possibility that the strength is insufficient as compared with the conventional product, the present invention has a concave one side plate surface of the joint plate part 6 in the joint plate part 6. Thus, the ridge 7 with the other side plate surface protruding is integrally formed.

Then, since thus joint plate portions 6 in ridges 7 by the integral molding is reinforced, there is no fear of strength supplemented with insufficient strength of the joint plate portion 6 lost by thinning.

Further, the protrusion 7 of the present invention has a degree of protrusion with respect to the other side plate surface of the joint plate portion 6, and the thickness of the joint plate portion 6 including the protrusion 7 is the slit 4 of the joint portion 3. setting the projecting degree of the thickness match the width.

Therefore, although the joining plate portion 6 itself is thinned, when the thinned joining plate portion 6 is inserted into the slit 4 of the joint portion 3 of the connecting wood 2, the joining plate portion 6 and the slit 4 are provided. Since the ridges 7 fill the gaps that occur in the gap, the joining plate portion 6 does not rattle in the slit 4 in the direction perpendicular to the length direction of the connecting wood 2.

  Accordingly, the thickness is improved by reducing the thickness of the joint plate portion 6 while reducing the cost, and the joint plate portion 6 is not required to be specially processed to the joint portion 3, and the joint portion 6 of the existing connecting wood 2 is used. Thus, the wood joining metal fitting A can be secured with the same accuracy as that of the conventional product.

Further, the ridges 7 provided on the joint plate portion 6 can be easily formed by, for example, metal pressing.

For the specific embodiment of the present invention will be described with reference to FIGS.

  The wood joining bracket A of this embodiment is a joint plate that is connected to a mounting plate portion 5 that is attached to the peripheral surface portion of the building wood 1 and a joint portion 3 of the connecting wood 2 that is provided with a joint portion 3 at the end. Part 6.

  Specifically, as shown in FIG. 1, a single metal (stainless steel, etc.) rectangular plate material is folded back into a double fold shape (cross-sectional U shape), and the folded portion is used as the mounting plate portion 5, and this mounting is performed. The left and right free plate portions located on the opposite side of the plate portion 5 are the joint plate portions 6 that protrude 90 degrees from the mounting plate portion 5. In other words, the present embodiment is applied to a two-sheet support type (substantially U-shaped cross-section) wood joint metal fitting A1 including two joint plate portions 6 similar to those in Patent Document 1.

  Further, the mounting plate portion 5 has a U-shaped cross section when the joint plate portion 6 is pulled by receiving a load in a direction in which the connecting wood 2 is pulled with respect to the building wood 1. The shape is assumed to be deformed from the folded shape of the cross section, and is formed in a folded shape that does not have a right-angled bent portion like a U-shaped folded shape.

  Specifically, as shown in FIGS. 2 and 4, the shape of the mounting plate portion 5 is formed in a substantially U-shaped cross section that is bent into a curved shape having no folding edge. Thereby, even if a load is applied in the direction in which the connecting wood 2 is pulled with respect to the building wood 1, the mounting plate portion 5 is unlikely to be further deformed from the substantially U-shaped cross section. It has a configuration that can achieve excellent connection strength by exhibiting excellent deformation resistance.

  Further, the mounting plate portion 5 is provided with a bolt insertion hole 10 for inserting a mounting bolt 9 penetrating and projecting from a peripheral surface portion of the building wood 1 through a bolt hole 11 provided in the peripheral surface portion. Are provided at a plurality of locations (two locations in the present embodiment) at predetermined intervals.

  Further, the joining plate portion 6 is formed with a substantially U-shaped latching recess 13 capable of latching the drift pin 12 in the upper portion on the projecting tip side with respect to the mounting plate portion 5, and drifts in the lower portion on the projecting tip side. An engagement hole 14 that can lock the pin 12 is formed.

  In this embodiment, the thickness of the joint plate 6 is set to be thinner than the width of the slit 4 of the joint 3.

  Specifically, by reducing the thickness of the plate constituting the joint metal fitting A1 by about 1 mm as compared with the plate thickness of the conventional product, the connecting plate portion 6 and the connecting plate portion 6 are made thinner, and the material is used. In addition to reducing costs by reducing the amount, the weight is reduced.

  Further, in the present embodiment, the joint plate portion 6 is integrally formed with a ridge 7 (rib) in which the other side plate surface is projected by recessing one side plate surface of the joint plate portion 6. The degree of protrusion of the ridge 7 with respect to the other side plate surface of the joint plate portion 6 is such that the plate thickness dimension of the joint plate portion 6 including the ridge 7 matches the width of the slit 4 of the joint portion 3 or the slit. The projecting degree is set to a thickness slightly thinner than 4 widths.

  Specifically, as shown in FIG. 2, by projecting the opposing inner plate surface of each joint plate portion 6 outward by pressing, the convex strip 7 having the same shape as the concave portion 15 is joined to the joint plate. As a configuration in which the thickness of the portion 6 is reduced by the thickness of the outer plate surface of the joint plate portion 6, the thickness of the joint plate portion 6 including the ridges 7 substantially matches the width of the slit 4. It is trying to become. In addition, it is good also as a structure which makes the protrusion 7 project on the inner side plate surface of the joint plate part 6 by making the outer side plate surface of each joint plate part 6 inwardly provided.

  Further, the protruding strip 7 is formed on the joining plate portion 6, a horizontally long protruding strip 7 </ b> A that is continuous in the bending projecting direction of the joining plate portion 6 with respect to the mounting plate portion 5, and a vertically long continuous shape of the joining plate portion 6. It is formed in a shape in which the ridges 7B are continuously provided.

  More specifically, in the middle of the vertical direction of each joint plate portion 6, the linear horizontally long continuous in the horizontal direction from the base end portion (the mounting plate portion 5 side) of this joint plate portion 6 to the projecting distal end portion. From the lower part of this joining plate part 6, it forms the protruding item | line 7A, and this horizontal elongate protruding item | line 7A is orthogonally crossed in the vicinity of the base end part of the joining board part 6, and the intermediate part vicinity of the protrusion direction of the joining board part 6. It is set as the structure which provided the linear elongate protruding item | line 7B which continues in a perpendicular direction over the upper part.

  Therefore, by providing the ridges 7 in a wide range of the joining plate portion 6 as a shape composed of the horizontally long ridges 7A and the vertically long ridges 7B in this way, the ridges 7 are formed in the joint portion 3 of the connecting wood 2. It is configured to exhibit a good anti-rattle effect by contacting a wide range of the inner surface of the slit 4.

Moreover, it is set as the structure which the joint plate part 6 is reinforced by this wide ridge 7 and an intensity | strength improves. According to the applicant's prototype experiment, forming the ridges 7 or the projections 8 ( configuration examples 1 to 3 ) to be described later has a slightly lower strength or a comparable strength compared to the conventional joining plate portion. It has been confirmed.

  Next, the building wood 1 and the connecting wood 2 used in this embodiment will be described.

  The building wood 1 is formed with two bolt holes 11 for mounting the mounting bolts 9 side by side between the opposing peripheral surfaces (side surfaces) of the building wood 1 in two places at the top and bottom. In addition, the bolt hole 11 has a hole diameter so that the mounting bolt 9 can be mounted in a freely swingable fitting state.

  The connecting wood 2 has a joint 3 formed at the end. The joint part 3 will be described in detail. A vertically long slit 4 is formed at two positions on the end of the connecting wood 2 by a detent remover or the like, and the two joint plate parts are formed in the two slits 4. 6 can be inserted. In addition, a pin locking hole 16 penetrating the divided end portion in the lateral direction is provided at the upper and lower portions of the end portion that is divided into three in the horizontal direction by forming the slit 4. 16 so that the drift pin 12 can be penetrated and locked in the horizontal direction. Of these, the upper pin locking hole 16 is provided with the drift pin 12 so as to penetrate the split end sideways in the horizontal direction. ing.

  Next, a method of connecting the building wood 1 to the connecting wood 2 using the wood joint metal fitting A (A1) of the present embodiment will be specifically described with reference to FIGS. 3 and 4 show a case where the building wood 1 is a vertical member 1A such as a pillar, and FIG. 5 shows a case where the building wood 1 is a cross member 1B such as a beam.

  First, the mounting bolt 9 is passed through each bolt hole 11 of the building wood 1 via a washer 17, and the tip of the mounting bolt 9 is projected on one side surface of the circumferential surface of the building wood 1.

  A bolt insertion hole 10 provided in the mounting plate portion 5 of the wood joining bracket A1 penetrates the tip of a mounting bolt 9 projecting from the side surface of the building wood 1 and a nut 18 is inserted into the tip of the mounting bolt 9 via a washer 17. Are screwed and tightened so that the mounting plate portion 5 of the wood joining bracket A1 contacts and is fixed to the circumferential surface (side surface) of the construction wood 1 and the wood joining fitting A1 (joint plate portion 6) is secured to the construction wood 1 It shall be in the state which protruded from the side of the side.

Subsequently, the two joining plate portions 6 are fitted to the two slits 4 of the joint portion 3 of the connecting wood 2 in alignment with each other, and the joint recesses 13 of the joining plate portion 6 are fitted with the joints. The drift pin 12 provided in advance on the portion 3 is hooked and connected from above, and the drift pin 12 is driven and inserted from the side pin locking hole 16 of the joint portion 3 to be locked in the engagement hole 14. Thus, the latching connection state is fixed, and the building wood 1 and the connecting wood 2 are joined at a right angle or an inclined shape (the drawing is a right angle).
[Configuration example 1]
Configuration example 1 will be described with reference to FIG.

This configuration example is a wood joining metal fitting A for joining a building wood 1 and a connecting wood 2 provided with a joint portion 3 at an end portion at a right angle or in an inclined state, and the peripheral surface portion of the building wood 1 And a connecting plate portion 6 that is inserted into the slit 4 of the joint portion 3 of the connecting wood 2 and connected and connected, and bends one plate material. Thus, in the wood joining bracket A configured such that the joint plate portion 6 bends and protrudes from the mounting plate portion 5, the thickness of the joint plate portion 6 is made thinner than the slit 4 width of the joint portion 3. The joint plate 6 is integrally formed with the projection 8 having the other plate surface projected by recessing one side plate surface of the joint plate portion 6 in the joint plate portion 6, and the joint plate of the projection 8. The projecting degree of the part 6 with respect to the other side plate surface is determined by the thickness of the joint plate part 6 including the protrusion 8 being the slip of the joint part 3. 4 that has been set slightly thinner thickness and made protruding degree than or slit 4 width matches the width of one of the wood joint device according to claim.

Specifically, Oite to the above-said is protrusively other side plate surface by recessing one side plate surface of the joint plate portion 6, instead of the joint plate portion 6 providing the ridge 7 convex This is a case where the base 8 is integrally formed.

  Further, the protrusion 8 is formed in a circular protrusion having a small diameter (about 10 mm in diameter), and the protrusion 8 has a degree of protrusion with respect to the other side plate surface of the joint plate portion 6 in the same manner as the protrusion 7. The thickness dimension of the joint plate portion 6 including the protrusions 8 is set to a degree of protrusion that matches the slit 4 width of the joint portion 3 or is slightly thinner than the slit 4 width. The shape of the protrusion 8 is not limited to a circle, and the design can be changed as appropriate.

  In addition, the protrusions 8 are provided at a plurality of locations spaced in the direction in which the joining plate portion 6 bends with respect to the mounting plate portion 5.

  Specifically, the upper and lower portions of the joining plate portion 6 are spaced apart in the direction in which the joining plate portion 6 bends with respect to the mounting plate portion 5 along the upper and lower edges of the joining plate portion 6, respectively. Further, protrusions 8 are provided at a plurality of places (three places in the drawing). That is, a plurality of protrusions 8 are provided in a juxtaposed manner at intervals in the vertical direction of the joint plate portion 6, and a total of six protrusions 8 are provided on each joint plate portion 6.

  In addition, you may provide the protrusion 8 in the scattered state in the wide range of the joining board part 6. FIG.

Other configurations are the same as the previous examples.
[Configuration example 2]
Configuration example 2 will be described with reference to FIG.

This configuration example is a case where the height of the joining metal fitting A1 is increased so as to be suitable for the thick connecting wood 2 in the configuration example 1 .

Specifically, the joining metal fitting A1 of the present configuration example forms the latching recess 13 in the upper and lower portions of the joint plate portion 6 on the projecting tip side with respect to the mounting plate portion 5, and the upper and lower latching recesses. The engagement holes 14 capable of locking the drift pin 12 are formed at a plurality of locations (four locations in the drawing) between the 13.

Further, the protrusions 8 of the present configuration example are formed on the upper and lower edges of the joint plate portion 6 along the upper and lower edges of the joint plate portion 6 as in the first configuration example . Protrusions 8 are provided at a plurality of locations (three locations in the drawing) spaced apart in the direction of bending projection with respect to the mounting plate portion 5, and the mounting plate portion of the joint plate portion 6 is located in the middle of the joint plate portion 6. 5 are arranged in parallel at a plurality of locations (three locations in the drawing) spaced apart in the direction in which the projection 5 protrudes. That is, also in this configuration example , the protrusions 8 are provided in a plurality of juxtaposed states at intervals in the vertical direction of the joint plate portion 6, and a total of nine protrusions 8 are provided on each joint plate portion 6. It has a configuration.

Other configurations are the same as those in the first configuration example .
[Configuration example 3]
Configuration example 3 will be described with reference to FIG.

The wood joining bracket A of this configuration example cuts and raises a single plate material to form a cut edge 19 for bending, and the joint plate portion 6 is substantially omitted from the attachment plate portion 5 via the cut edge 19. This is a case where 90-degree bending is formed.

That is, the present configuration example is applied to a single-piece support type (cross-section T-shaped) wood joint metal fitting A2 provided with one joint plate portion 6 similar to Patent Document 2. In the case of this configuration example , the connecting wood 2 has a joint portion 3 having a longitudinal slit 4 at one end.

Although this configuration example is different in shape from the above-described embodiment and configuration examples 1 and 2 , the function of each part is the same, and therefore, detailed description will be given by attaching the same reference numerals to each part as in the example and configuration examples 1 and 2 It is omitted to do.

Moreover, in this structural example , although the case where the protrusion 8 was provided in the joining board part 6 similarly to the structural examples 1 and 2 , the protruding item | line 7 was provided similarly to the said Example, and the Example of this invention is provided. It may be configured .

Note that the present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Wood for construction 2 Wood for connection 3 Joint part 4 Slit 5 Mounting plate part 6 Joint plate part 7 Projection 7A Horizontal projection 7B Vertical projection A Wood joint metal fittings

Claims (1)

A wood joining bracket for joining a building wood and a connecting wood provided with a joint portion at an end portion at a right angle or in an inclined state, and a mounting plate portion attached in contact with the peripheral surface portion of the building wood And a joint plate portion that is inserted into the slit of the joint portion of the connecting wood and joined and joined, and the joint plate portion is bent and projected from the mounting plate portion by bending a single plate material. In the wood joining bracket configured to be configured, the plate thickness dimension of the joint plate portion is set to be thinner than the slit width of the joint portion, and one side plate surface of the joint plate portion is recessed in the joint plate portion. In addition to integrally forming the ridge with the other side plate surface protruding, the degree of protrusion of the ridge with respect to the other side plate surface of the joint plate portion is determined by the thickness of the joint plate portion including the ridge. , Set the projecting degree to be a plate thickness that matches the slit width of the joint, and this ridge is slit It is set as the structure which contact | connects an inner surface, and this convex strip is provided with the continuous long convex strip which continues in the bending protrusion direction with respect to the said mounting plate part of the said joint plate part, and the vertical long convex strip which continues in the up-down direction of the joint plate part. The laterally elongated ridges and the vertically elongated ridges are formed on the center side avoiding the peripheral edge portion of the joint plate portion, and the thickness of the peripheral edge portion of the joint plate portion is set to A wood joining bracket characterized by being configured to be thinner than the slit width of the part .

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