Patent Grant
11021866
Present invention relates to a wooden building comprising horizontal members and vertical members to be fitted to the horizontal members, and construction method for same.
A wooden wall frame construction method (Hereinafter, referred to as “two by four construction method” or “2×4 construction method”) is often used for recent buildings.
For example, in Patent Literature 1, it is proposed to use two by four material of (37 mm to 39 mm)×(88 mm to 90 mm) with a length of integral multiple of 1 inch, instead of framework material, as a stud to be built between the pillars, in order to decrease materials and man-hours in conventional (framework) construction method.
In addition, in Patent Literature 2, a wall structure of two by four constructed by connecting panels extended with outer wall plate (3) at external surface (1A) and having a header support (1) at end surface for connecting adjacent panels accurately in identical plane and for improving connection strength, wherein studs (4) are fixed at connected surfaces of panels at both sides, is proposed.
Patent Literature 1: JP 2012-219496 A
Patent Literature 2: JP H8-105129 A
However, in a conventional method, at a position where a joint will be required, a special processing was necessary. In addition, as special processing is necessary, a variation in a quality of buildings occurs by skills of workers.
Here, the purpose of the present invention is to provide a building and a construction method with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
A building relating to one embodiment of the present invention is a wooden building constructed by fitting horizontal members and vertical members, comprising: lower frames, first upper frames, second upper frames, and side joists as the horizontal members; and pillars as the vertical members, wherein the lower frames, the first upper frames, the second upper frames, and the side joists are provided with mortises at least at a part of the lower frames, the first upper frames, the second upper frames, and the side joists in longitudinal direction, the first upper frames are provided with a recessed groove over entire length in longitudinal direction, the second upper frames are provided with a protrusion over entire length in longitudinal direction, the mortises provided at the lower frames and the first upper frames are through holes, and the pillars are provided with protrusions at both ends, which can be fitted into the mortises provided at the lower frames, the first upper frames, the second upper frames, and the side joists.
In this way, it is possible to provide a building with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
At this time, in one embodiment of the present invention, it is further comprising third upper frames as the horizontal members, and the third upper frames may be provided to be fitted to the second upper frames such that a difference at one side of the protrusion provided at the second upper frames will be absorbed.
In this way, the third upper frames can be put on the second upper frames stably, so it is possible to raise a height of a ceiling.
At this time, in one embodiment of the present invention, the mortises provided at the lower frames are formed by two or more intermediate sawn plates aligned at intervals in a line of horizontal direction, and by two sawn plates interposing the intermediate sawn plates at both sides and having longer entire length than the two or more intermediate sawn plates, the intermediate sawn plates and two sawn plates at both sides are having same plate width, and the mortises provided at the first upper frames and the second upper frames are formed by two or more intermediate sawn plates aligned at intervals in a line of horizontal direction, and by two sawn plates interposing the intermediate sawn plates at both sides and having longer entire length than the two or more intermediate sawn plates, the intermediate sawn plates and two sawn plates at both sides are having same plate width or different plate width, and the recessed groove provided at the first upper frames is formed by interposing the intermediate sawn plates at both sides by two sawn plates having wider plate width than the intermediate sawn plates, and the protrusion provided at the second upper frames is formed by providing a sawn plate with same plate width as the two sawn plates at both sides of the second upper frames on the intermediate sawn plates of the second upper frames, the mortises provided at the side joists are formed by two sawn plates with same plate width and two or more sawn plates with different plate width provided at intervals on one of the two sawn plates which fits into the recessed groove of the first upper frames, and the protrusions provided at the pillars are formed by interposing one intermediate sawn plate at both sides by two sawn plates having shorter entire length than the intermediated sawn plate, the intermediate sawn plate and two sawn plates at both sides are having same plate width.
In this way, the mortises of the lower frames, the first upper frames, the second upper frames, the side joists, or the recessed groove of the first upper frames, and the protrusions of the pillars are formed clearly, and it is possible to provide a building with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
The building further comprises fixing metal fittings for joining the pillars to the lower frames, the fixing metal fittings are respectively provided with a joint base in groove shape mainly composing the joint metal, and a cover spacer in groove shape capable of supporting axial load of a pillar of the pillars by covering an open surface of the joint base, the joint base comprises: a plane section in rectangular shape in which bolt holes are drilled and a shape of which coincides with an end surface of the pillar; a pair of groove walls composed of side edges of the plane section respectively bent vertically in L shape; and a joining plate standing at a height surpassing the groove walls from the plane section and supported by welded part contacting at least the pair of the groove walls or a groove bottom, the cover spacer comprises: a plane section in rectangular shape for supporting the pillar by abutting to the end surface of the pillar; a pair of groove walls composed of side edges of the plane section respectively bent vertically in L shape; and a slit drilled such that the joining plate will be fitted into the slit when covering the joint base, wherein in a state assembled as the joint metal, fastening bolts penetrated through or embedded in a horizontal member of the horizontal members are penetrated through the bolt holes, and the plane section of the joint base is fastened to the horizontal member by a nut, further, the joining plate is penetrated through the slit, and also, tips of the fastening bolts and the nuts screwed to the fastening bolts are housed in a box-shaped space surrounded by the joint base and the cover spacer, the end surface of the pillar abuts the plane section of the cover spacer, and also, the pillar and the joining plate fitted into a groove hole drilled at the pillar are drift-pin joined by a plurality of drift pins.
In this way, it is possible to provide a building with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing, as the pillars can be fitted easily to the lower frames and structural strength will be improved.
In addition, in one embodiment of the present invention, a depth of the mortises of the lower frames, the first upper frames, the second upper frames, and the side joists may be larger than a height of the protrusions of the pillars.
In this way, it is possible to provide a building not causing a variation in a quality of buildings further, as the pillars will be able to be fitted to the lower frames, the first and second upper frames, and the side joists, even if the protrusions of the pillars are expanded by humidity and become higher than a depth of the mortises of the lower frames, the first and second upper frames, and the side joists, and a depth of the recessed groove of the first upper frames.
In addition, in one embodiment of the present invention, a protrusion or a recess may be provided at both ends in longitudinal direction of each of the lower frames, the first upper frames and the second upper frames.
In this way, coupling of the lower frames themselves and the upper frames themselves will be easy.
In addition, in one embodiment of the present invention, 204 material, 205 material, 206 material, 208 material, 210 material, and 212 material may be used as the horizontal members and vertical members.
In this way, it is possible to correspond to various materials.
In addition, in one embodiment of the present invention, the lower frames, the first upper frames, the second upper frames, the side joists, and the pillars may be formed in equivalent shape from solid wood, laminated wood, or laminated veneer lumber.
In this way, it is possible to correspond to solid wood, laminated wood, or laminated veneer lumber.
In addition, in other embodiment of the present invention, it is a construction method for fitting and assembling at least horizontal members and vertical members at the construction site, comprising: a horizontal member forming step for forming the horizontal members; a vertical member forming step for forming the vertical members; and an assembling step for fitting and assembling the horizontal members and the vertical members, wherein lower frames, first upper frames, second upper frames and side joists are provided as the horizontal members, pillars are provided as the vertical members, the lower frames, the first upper frames, the second upper frames, and the side joists are provided with mortises at least at a part of the first upper frames, the second upper frames, and the side joists in longitudinal direction, the first upper frames are provided with a recessed groove over entire length in longitudinal direction, the second upper frames are provided with a protrusion over entire length in longitudinal direction, the mortises provided at the lower frames and the first upper frames are through holes, and the pillars are provided with protrusions at both ends, which can be fitted into the mortises provided at the lower frames, the first upper frames, the second upper frames, and the side joists.
In this way, it is possible to provide a construction method with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
At this time, in one embodiment of the present application, third upper frames are further provided as the horizontal members, and the third upper frames may be provided to be fitted to the second upper frames such that a difference at one side of the protrusion provided at the second upper frames will be absorbed.
In this way, the third upper frames can be put on the second upper frames stably, so it is possible to raise a height of a ceiling.
In addition, in other embodiment of the present invention, the mortises provided at the lower frames are formed by two or more intermediate sawn plates aligned at intervals in a line of horizontal direction, and by two sawn plates interposing the intermediate sawn plates at both sides and having longer entire length than the two or more intermediate sawn plates, the intermediate sawn plates and the two sawn plates at both sides are having same plate width, and the mortises provided at the first upper frames and the second upper frames are formed by two or more intermediate sawn plates aligned at intervals in a line of horizontal direction, and by two sawn plates interposing the intermediate sawn plates at both sides and having longer entire length than the two or more intermediate sawn plates, the intermediate sawn plates and the two sawn plates at both sides are having same plate width or different plate width, and the recessed groove provided at the first upper frames is formed by interposing the intermediate sawn plates at both sides by the two sawn plates having wider plate width than the intermediate sawn plates, and the protrusion provided at the second upper frames is formed by providing a sawn plate with same plate width as the two sawn plates at both sides of the second upper frames on the intermediate sawn plates of the second upper frames, the mortises provided at the side joists are formed by two sawn plates with same plate width and two or more sawn plates with different plate width provided at intervals on one of the two sawn plates which fits into the recessed groove of the first upper frames, and protrusions provided at the pillars are formed by interposing one intermediate sawn plate at both sides by two sawn plates having shorter entire length than the intermediated sawn plate, the intermediate sawn plate and the two sawn plates at both sides are having same plate width.
In this way, the mortises of the lower frames, the first upper frames, the second upper frames, the side joists, or the recessed groove of the first upper frames, and the protrusions of the pillars are formed clearly, and it is possible to provide a construction method with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
In addition, in other embodiment of the present invention, the horizontal member forming step and/or the vertical member forming step may be performed at the construction site.
In this way, it is possible to provide a construction method with more improved workability, and also, which does not cause a variation in a quality of buildings.
As explained in the above, according to the present invention, it is possible to provide a building and a construction method with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises.
A wooden framework construction method (hereinafter, referred to as “conventional construction method”) is a traditional construction method in Japan, and it is a construction method for assembling by providing joints to precut pillars and beam materials, and by reinforcing with metal fittings. A wooden framework panel construction method (hereinafter, referred to as “I.D.S construction method”) based on this construction method also belongs to a category of the conventional construction method basically. On the other hand, 2×4 construction method is a traditional construction method in North America, and it is having an advantage that advanced processing technique is not necessary, as standardized panels are assembled by metal fittings or nailing. In addition, a wooden framework is assembled by structural materials.
As lumbers for 2×4 construction method, it is defined in JAS (Japanese Agricultural Standard), but woods with prescribed size specified by names below are used. In other words, 1×4 (19×89 mm for dried wood), 1×6, 2×2, 2×3, 2×4 (204 material), 2×5 (205 material), 2×6 (206 material), 2×8, 2×10 (210 material), 2×12, 4×4 (404 material), and 4×6 (406 material) with different sectional shapes are used. In addition, the names are derived from inch size, but actual sizes are smaller than the named inch size.
Hereinafter, it is explained in detail about preferred embodiments of the present invention, in the following order. In addition, the embodiments of the present invention explained in below should not unjustly limit the content of the present invention described in claims, and not all of the features explained in the embodiments of the present invention are necessary as means for solving the problem of the present invention. In addition, about a building and a construction method relating to one embodiment of the present invention, it is not limited to 2×4 building.
It will be described in detail later, but the lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50 are provided with mortises 15, 25, 35, 55 at least at a part of the lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50 in longitudinal direction, the first upper frames 20 are provided with a recessed groove 23 over entire length in longitudinal direction, the second upper frames 30 are provided with a protrusion 36 over entire length in longitudinal direction, the mortises 15, 25 provided at the lower frames 10 and the first upper frames 20 are through holes, and the pillars 80 are provided with protrusions 83 at both ends, which can be fitted into the mortises 15, 25, 35, 55 provided at the lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50.
As illustrated in
As illustrated in
In addition, as illustrated in
In addition, when the building 100 is one-story building, the second upper frames 30 will be used instead of the first upper frames 20 in
As illustrated in
Floor materials such as floor plywood 3 may be laid on the joists. Publicly known materials are used for the floor materials. By the above, the first floor and the floor of the second floor are constructed. As the joists, joists as illustrated in
Next, the protrusions 83 provided at the pillars 80 are fitted to the mortises 55 provided at the side joists 50, and the pillars 80 of the second floor will be self-stood. When the building 100 is two-story building, the mortises 35 provided at least at a part of the second upper frames 30 in longitudinal direction will be fitted to upper protrusions 83 of self-standing pillars 80.
In addition, it further comprises third upper frames 40 as the horizontal members, and it is preferable that the third upper frames 40 are provided to be fitted to the second upper frames 30 such that a difference at one side of the protrusion 36 provided at the second upper frames 30 will be absorbed.
Further, it is preferable to further comprise roof beams 70 as the horizontal members. The roof beams 70 are provided with mortises 73 at least at a part of the roof beams 70 in longitudinal direction, and it is preferable that the mortises 73 are through holes. The protrusions 83 of the pillars 80 are fitted to the mortises 73.
As the above, when it is two-story building, it may be provided in order of the lower frames 10, the pillars 80, the first upper frames 20, and the side joists 50 on the first floor, and in order of the pillars 80 and the second upper frames 30 on the second floor. In addition, when it is three-story building, the first upper frames 20 will be used instead of the second upper frames 30 provided on the pillars 80 of the second floor. In other words, it may be provided in order of the lower frames 10, the pillars 80, the first upper frames 20, and the side joists 50 on the first floor, and in order of the pillars 80, the first upper frames 20, and the side joists 50 on the second floor, and in order of the pillars 80 and the second upper frames 30 on the third floor. As such, the first upper frames 20, the second upper frames 30, the side joists 50, and the pillars 80 may be selected and provided according to desired number of stories.
And, when the third upper frames 40 are provided, struts will be stood on the third upper frames 40 or the roof beams 70, and purlins and ridgepoles are built, and rafters and roof boards are applied.
Next, concretely explaining the horizontal members and the vertical members used in the building 100 relating to one embodiment of the present invention using
In addition, on the pillars 80 of the top floor, a second upper frame 30 as illustrated in
For example, as illustrated in
After providing the second upper frame 30, as illustrated in
In addition, as illustrated in
In addition, as illustrated in
As mentioned above, the protrusions 83 of the pillars 80 are fitted to the mortises 25, 35 formed in the first upper frames 20 or the second upper frames 30 from below. And, the side joists 50 are provided on the first upper frames 20, concretely, the side joists 50 are fitted to the recessed groove 23 formed in the first upper frames 20. In addition, the third upper frames 40 are provided on the second upper frames 30, concretely, the third upper frames 40 are provided to be fitted to the second upper frames 30 such that a difference at one side of the protrusion 36 provided at the second upper frames 30 will be absorbed.
Further, as the joist, a joist single 60 illustrated in
In addition, it is preferable to provide a packing 37 on the intermediate sawn plate 31 of 208 material forming the protrusion 36 of the second upper frame 30 illustrated in
A mortise 73 is provided at least at a part of the roof beam 70 in longitudinal direction. The mortise 73 is a through hole. As illustrated in
As illustrated in
Here, instead of forming the mortises in the building 100 relating to one embodiment of the present invention, it can be considered to form the recessed groove 23 over entire length in longitudinal direction of the first upper frames 20 illustrated in
From the above, the building 100 as illustrated in
In addition, it is preferable that a depth of the mortises 15, 25, 35, 55, 73 of the lower frame 10, the first upper frame 20, the second upper frame 30, the side joist 50, and/or the roof beam 70 are greater than a height of the protrusions 83 of the pillar 80. In this way, even when a height of the protrusions 83 of the pillar 80 becomes higher than a depth of the mortises 15, 25, 35, 55, 73 of the lower frame 10, the first upper frame 20, the second upper frame 30, the side joist 50, and/or the roof beam 70, and a depth of the recessed groove 23 of the first upper frame 20, by expansion by humidity, the pillar 80 can be fitted to the lower frame 10, the first upper frame 20, the second upper frame 30, the side joist 50, and/or the roof beam 70, without cutting down a part of the protrusions 83 which became higher, so it is possible to provide the building 100 which does not cause a variation in a quality of buildings, as there will be no deviation when the building 100 is completed.
It is preferable that 204 material, 205 material, 206 material, 208 material, 210 material, and 212 material are used as the horizontal members and the vertical members. In this way, it is possible to correspond to various materials.
As mentioned above, the horizontal members and the vertical members used for the building 100 relating to one embodiment of the present invention may be formed by interposing and laminating a plurality of sawn plates. For example, the lower frame 10, the first upper frame 20, the second upper frame 30, the third upper frame 40, the side joist 50, the roof beam 70, and the pillar 80 are formed by interposing and laminating two or three sawn plates, and in this way, it is possible to reduce a loss of material of sawn plates by reforming torsion or bending of each material. And, a joint equivalent to the conventional construction method can be formed by simple processing, for example by cutting length.
The lower frame 10, the first upper frame 20, the second upper frame 30, the side joist 50, and the pillar 80 may be formed in equivalent shape from solid wood, laminated wood, or laminated veneer lumber. In other words, the lower frame, the first upper frame, the second upper frame, the side joist, and the pillar may be formed in equivalent shape from solid wood, laminated wood, or laminated veneer lumber, instead of two or more sawn plates. In this way, it is possible to correspond to solid wood, laminated wood, or laminated veneer lumber. In addition, the roof beam 70 may be formed in equivalent shape from solid wood, laminated wood, or laminated veneer lumber.
It is preferable that the building 100 relating to one embodiment of the present invention further comprises a fixing metal fitting 90 for joining the pillar 80 and the lower frame 10. The fixing metal fitting 90 is referring to a fixing metal fitting described in International Application No. PCT/JP2018/000284. As illustrated in
As illustrated in
It is preferable that, in a state assembled as the joint metal, fastening bolts penetrated through or embedded in the lower frame 10 are penetrated through the bolt holes 93, and the plane section 94 of the joint base 91 is fastened to the lower frame 10 by nuts, further, the joining plate 96 is penetrated through the slit 99, and also, tips of the fastening bolts and the nuts screwed to the fastening bolts are housed in a box-shaped space surrounded by the joint base 91 and the cover spacer 92, the end surface of the pillar 80 abuts the plane section 97 of the cover spacer 92, and also, the pillar 80 and the joining plate 96 fitted into a groove hole drilled at the pillar 80 are drift-pin joined by a plurality of drift pins. In addition, the plurality of drift pins penetrate through drift-pin holes K.
In this way, it is possible to provide a building with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing, as the pillars can be fitted easily to the lower frames and structural strength will be improved.
[2. Construction Method]
Next, explaining about a construction method relating to one embodiment of the present invention. As illustrated in
[2-1. Horizontal Member Forming Step]
The horizontal member forming step S1 is a step for forming the horizontal members. Lower frames 10, first upper frames 20, second upper frames 30, and side joists 50 are provided as the horizontal members. The lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50 are provided with mortises 15, 25, 35, 55 at least at a part of the lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50 in longitudinal direction. In addition, the first upper frames 20 are provided with a recessed groove 23 over entire length in longitudinal direction, and the second upper frames 30 are provided with a protrusion 36 over entire length in longitudinal direction. The mortises 15, 25 provided at the lower frames 10 and the first upper frames 20 are through holes
It is preferable that third upper frames 40 are further provided as the horizontal members, and the third upper frames 40 is provided to be fitted to the second upper frames 30 such that a difference at one side of the protrusion 36 provided at the second upper frames 30 will be absorbed.
It is preferable that the mortises 15 provided at the lower frames 10 are formed by two or more intermediate sawn plates 11 aligned at intervals in a line of horizontal direction, and by two sawn plates 12 interposing the intermediate sawn plates 11 at both sides and having longer entire length than the two or more intermediate sawn plates 11, the intermediate sawn plates 11 and the two sawn plates 12 at both sides are having same plate width.
In addition, it is preferable that the mortises 25 provided at the first upper frames 20 are formed by two or more intermediate sawn plates 21 aligned at intervals in a line of horizontal direction, and by two sawn plates 22 interposing the intermediate sawn plates 21 at both sides and having longer entire length than the two or more intermediate sawn plates 21, the intermediate sawn plates 21 and the two sawn plates 22 at both sides are having same plate width or different plate width. How to form the mortises 35 provided at the second upper frames 30 is same as the mortises 25 of the first upper frames 20.
In addition, it is preferable that the recessed groove 23 provided at the first upper frames 20 is formed by interposing the intermediate sawn plates 21 at both sides by the two sawn plates 22 having wider plate width than the intermediate sawn plates 21.
In addition, it is preferable that the protrusion 36 provided at the second upper frames 30 is formed by providing a sawn plate 31 with same plate width as the two sawn plates 32 at both sides on the intermediate sawn plates 33. It is preferable that the mortises 55 provided at the side joists 50 are formed by two sawn plates 51, 52 with same plate width and two or more sawn plates 53 with different plate width provided at intervals on the sawn plate 52 which is fitted to the recessed groove 23 of the first upper frame 20.
The plurality of sawn plates described in the above and a plurality of sawn plates described in below may be bonded by publicly known method.
[2-2. Vertical Member Forming Step]
The vertical member forming step S2 is a step for forming the vertical members. Pillars and framework walls are provided as the vertical members. In addition, the pillars 80 are provided with protrusions 83 at both ends, which can be fitted into the mortises 15, 25, 35, 55 provided at the lower frames 10, the first upper frames 20, the second upper frames 30, and the side joists 50.
It is preferable that the protrusions 83 provided at the pillars 80 are formed by interposing one intermediate sawn plate 81 at both sides by two sawn plates 82 having shorter entire length than the intermediated sawn plate 81, the intermediate sawn plate 81 and the two sawn plates 82 at both sides are having same plate width.
[2-3. Assembling Step]
The assembling step S3 is a step for fitting and assembling the horizontal members and the vertical members formed by the horizontal member forming step S1 and the vertical member forming step S2. How to assemble actually is as explained in
In addition, it is preferable that the horizontal member forming step S1 and the vertical member forming step S2 are performed at the construction site. In the case of conventional construction method, all members are produced in a factory, and the produced members are transferred to the construction site and assembled, but for example, when a member is missing due to a breakage or the like, it is necessary to reorder the missing member to the factory and wait for production and arrival of the missing member, however, the members used for the construction method relating to one embodiment of the present invention are easy to be formed and processed, so they can be produced easily at the construction site.
From the above, according to the construction method relating to one embodiment of the present invention, it is possible to provide a construction method with improved workability, and also, which does not cause a variation in a quality of buildings, by enabling materials to be joined easily without special processing by forming mortises. In addition, it is possible to set up a framework in short time with few workers, as it is easy to construct. Further, there will not be a problem even for non-skilled workers.
It is preferable that the construction method relating to one embodiment of the present invention further comprises the above-mentioned fixing metal fittings. The details of the fixing metal fittings are as described in the above.
In addition, it is explained in detail about each embodiment and each example of the present invention as the above, but it is easy for those who skilled in the art to understand that various modifications are possible without substantially departing from new matters and effects of the present invention. Therefore, all of such modified examples are included within the scope of the present invention.
For example, a term used at least once in the description or drawings together with a different term that is broader or the same in meaning can also be replaced by the different term in any place in the description or drawings. Further, the structure and the operation of the building and the construction method are not limited to those described in each embodiments and examples of the present invention, but may be carried out in various modifications.
There is a possibility that the building and the construction method relating to one embodiment of the present invention will be adopted to two by four building and other buildings, and construction methods thereof.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2018/020717 | 5/30/2018 | WO | 00 |
| Publishing Document | Publishing Date | Country | Kind |
|---|---|---|---|
| WO2019/229870 | 12/5/2019 | WO | A |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3866371 | Falconer | Feb 1975 | A |
| 4285176 | Runkle | Aug 1981 | A |
| 4479342 | Eberle | Oct 1984 | A |
| 5832689 | Curll | Nov 1998 | A |
| 9322158 | Langmeier | Apr 2016 | B1 |
| 20050055966 | Conroy | Mar 2005 | A1 |
| 20050066615 | Wilhour | Mar 2005 | A1 |
| Number | Date | Country |
|---|---|---|
| 3013892 | Jun 2018 | CA |
| 2 104 612 | Mar 1983 | GB |
| S35-10241 | May 1960 | JP |
| H08-105129 | Apr 1996 | JP |
| 2002-364069 | Dec 2002 | JP |
| 2003-155781 | May 2003 | JP |
| 2006-322275 | Nov 2006 | JP |
| 2009-091848 | Apr 2009 | JP |
| 3177809 | Aug 2012 | JP |
| 2012-184565 | Sep 2012 | JP |
| 2012-219496 | Nov 2012 | JP |
| WO-2012004633 | Jan 2012 | WO |
| WO-2012125595 | Sep 2012 | WO |
| 2019016979 | Jan 2019 | WO |
| WO-2020041457 | Feb 2020 | WO |
| Entry |
|---|
| Aug. 7, 2018 Search Report issued in International Patent Application No. PCT/JP2018/020717. |
| Number | Date | Country | |
|---|---|---|---|
| 20200123763 A1 | Apr 2020 | US |
