CA2912516A1 - Support leg - Google Patents
Support legInfo
- Publication number
- CA2912516A1 CA2912516A1 CA2912516A CA2912516A CA2912516A1 CA 2912516 A1 CA2912516 A1 CA 2912516A1 CA 2912516 A CA2912516 A CA 2912516A CA 2912516 A CA2912516 A CA 2912516A CA 2912516 A1 CA2912516 A1 CA 2912516A1
- Authority
- CA
- Canada
- Prior art keywords
- support
- sliding
- leg
- jig
- support leg
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000002093 peripheral effect Effects 0.000 claims description 27
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 description 21
- 239000000463 material Substances 0.000 description 8
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 230000000630 rising effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- FXNGWBDIVIGISM-UHFFFAOYSA-N methylidynechromium Chemical group [Cr]#[C] FXNGWBDIVIGISM-UHFFFAOYSA-N 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/20—Undercarriages with or without wheels
- F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
- F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
- F16M11/28—Undercarriages for supports with one single telescoping pillar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/10—Manufacturing or assembling aircraft, e.g. jigs therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/045—Allowing translations adapted to left-right translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
- F16M11/043—Allowing translations
- F16M11/048—Allowing translations adapted to forward-backward translation movement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
- F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
- F16M11/02—Heads
- F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Clamps And Clips (AREA)
- Pivots And Pivotal Connections (AREA)
- Road Signs Or Road Markings (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The purpose of the present invention is to easily and quickly perform attachment to an object to be supported and efficiently perform positioning with respect to the assembly reference position for the object being supported. The support leg is configured so as to be provided with: a support leg body (121), which is detachably attached to a middle trunk section; a leg member (135) supported so as to be able to pivot with respect to the support leg body (121) on a spherical convex sliding surface (133a) and a concave sliding surface (134a); and a spherical part (135e), which is provided on the leg member (135) and is positioned on a first jig or a second jig.
Description
WO 2014/203660 Al 1 SUPPORT LEG
TECHNICAL FIELD
[0001]
The present invention relates to a support leg suitable for use when assembling a large structure such as a fuselage of an aircraft or the like.
BACKGROUND ART
TECHNICAL FIELD
[0001]
The present invention relates to a support leg suitable for use when assembling a large structure such as a fuselage of an aircraft or the like.
BACKGROUND ART
[0002]
When a large structure such as a fuselage of an aircraft is assembled, for example, the structure is assembled using a jig installed on a floor surface.
At this time, to ensure high-precision assembly, sometimes coordinates that serve as absolute references are defined as reference positions on the floor surface, and assembly is performed in accordance with these reference positions.
Specifically, a body frame or the like assembled at a different location in advance is first placed on the jig in accordance with the reference positions.
Then, the structure placed in accordance with the reference positions is assembled by sequentially attaching various components and the like to this body frame or the like.
Here, in this specification, the body frame or the like assembled at a different location and placed on the jig is referred to as an object to be supported.
When a large structure such as a fuselage of an aircraft is assembled, for example, the structure is assembled using a jig installed on a floor surface.
At this time, to ensure high-precision assembly, sometimes coordinates that serve as absolute references are defined as reference positions on the floor surface, and assembly is performed in accordance with these reference positions.
Specifically, a body frame or the like assembled at a different location in advance is first placed on the jig in accordance with the reference positions.
Then, the structure placed in accordance with the reference positions is assembled by sequentially attaching various components and the like to this body frame or the like.
Here, in this specification, the body frame or the like assembled at a different location and placed on the jig is referred to as an object to be supported.
[0003]
To place an object to be supported on a jig in accordance with reference positions requires adjustment of the position of the object, and it is extremely difficult to subtly move the position of an object to be supported that is a heavy object. Hence, there is a bearing device that includes a support that moves freely in the horizontal direction, as described in Patent Document 1, for example.
CITATION LIST
Patent Literature
To place an object to be supported on a jig in accordance with reference positions requires adjustment of the position of the object, and it is extremely difficult to subtly move the position of an object to be supported that is a heavy object. Hence, there is a bearing device that includes a support that moves freely in the horizontal direction, as described in Patent Document 1, for example.
CITATION LIST
Patent Literature
[0004]
Patent Literature 1: Japanese Unexamined Utility Model Application Publication No. 2579974 SUMMARY OF INVENTION
Technical Problem
Patent Literature 1: Japanese Unexamined Utility Model Application Publication No. 2579974 SUMMARY OF INVENTION
Technical Problem
[0005]
Positioning an object to be supported with respect to a jig, however, requires the provision of a positioning area on the object to be supported as well. As illustrated in FIG. 12, for a fuselage of an aircraft, a temporary support leg 2 is attached to a body frame 1, and this support leg 2 is positioned relative to a jig 3.
Here, a manufacturing error of several millimeters, for example, may occur in the body frame 1 itself assembled at a different location.
Accordingly, when the support leg 2 is attached to the body frame 1, an attachment position and an angle of the support leg 2 need to be adjusted in accordance with the manufacturing error.
To this end, a thin sheet-like shim plate is interposed or a filling material 4 such as resin is filled between an attachment surface 2a of the support leg and the body frame 1.
Positioning an object to be supported with respect to a jig, however, requires the provision of a positioning area on the object to be supported as well. As illustrated in FIG. 12, for a fuselage of an aircraft, a temporary support leg 2 is attached to a body frame 1, and this support leg 2 is positioned relative to a jig 3.
Here, a manufacturing error of several millimeters, for example, may occur in the body frame 1 itself assembled at a different location.
Accordingly, when the support leg 2 is attached to the body frame 1, an attachment position and an angle of the support leg 2 need to be adjusted in accordance with the manufacturing error.
To this end, a thin sheet-like shim plate is interposed or a filling material 4 such as resin is filled between an attachment surface 2a of the support leg and the body frame 1.
[0006]
Nevertheless, adjusting the position and the angle of the support leg 2 of course takes time and effort. In particular, when the filling material 4 such as resin is used, work must be stopped once the resin 4 has been filled between the attachment surface 2a of the support leg 2 and the body frame 1 until the filling material 4 cures and exhibits a required strength, resulting in work stagnation.
Nevertheless, adjusting the position and the angle of the support leg 2 of course takes time and effort. In particular, when the filling material 4 such as resin is used, work must be stopped once the resin 4 has been filled between the attachment surface 2a of the support leg 2 and the body frame 1 until the filling material 4 cures and exhibits a required strength, resulting in work stagnation.
[0007]
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a support leg that can be easily and quickly attached to an object to be supported and efficiently positioned relative to an assembly reference position of the object to be supported.
Solution to Problem
The present invention has been made in view of such circumstances, and an object of the present invention is to provide a support leg that can be easily and quickly attached to an object to be supported and efficiently positioned relative to an assembly reference position of the object to be supported.
Solution to Problem
[0008]
To resolve the above-described problems, a support leg of the present invention adopts the following means.
That is, an aspect of the present invention is a support leg for positioning an object to be supported on a jig. The support leg includes a support leg body detachably attached to the object to be supported, a leg member supported so as to be pivotable with respect to the support leg body on a spherical sliding surface, and a positioning portion provided on a lower end portion of the leg member and positioned on the jig.
To resolve the above-described problems, a support leg of the present invention adopts the following means.
That is, an aspect of the present invention is a support leg for positioning an object to be supported on a jig. The support leg includes a support leg body detachably attached to the object to be supported, a leg member supported so as to be pivotable with respect to the support leg body on a spherical sliding surface, and a positioning portion provided on a lower end portion of the leg member and positioned on the jig.
[0009]
WO 2014/203660 Al 3 According to such a support leg, when the support member is pivoted with the support leg body attached to the object to be supported, the positioning portion provided on the lower end portion of the leg member is displaced. This displacement makes it possible to absorb the manufacturing error of the object to be supported and to position the positioning portion of the leg member on the jig. Thus, even if the object to be supported is a large, heavy object, it is possible to position the object to be supported relative to the jig without the movement of the object to be supported itself, but simply with the displacement of the leg member.
Further, the support leg body may be directly provided to the object to be supported without using a shim plate or a filling material such as resin, making it possible to achieve easy and quick attachment.
WO 2014/203660 Al 3 According to such a support leg, when the support member is pivoted with the support leg body attached to the object to be supported, the positioning portion provided on the lower end portion of the leg member is displaced. This displacement makes it possible to absorb the manufacturing error of the object to be supported and to position the positioning portion of the leg member on the jig. Thus, even if the object to be supported is a large, heavy object, it is possible to position the object to be supported relative to the jig without the movement of the object to be supported itself, but simply with the displacement of the leg member.
Further, the support leg body may be directly provided to the object to be supported without using a shim plate or a filling material such as resin, making it possible to achieve easy and quick attachment.
[0010]
Further, this support leg may further include a support member that is provided to the support leg body and includes the sliding surface, a sliding member that faces the sliding surface, includes a spherical sliding surface that matches the sliding surface, and is slidable on the sliding surface, a first through-hole formed through the support member, and a second through-hole formed through the sliding member. In the support leg, the leg member is provided so as to be fixed to the sliding member to extend downward through the first through-hole and the second through-hole.
Further, this support leg may further include a support member that is provided to the support leg body and includes the sliding surface, a sliding member that faces the sliding surface, includes a spherical sliding surface that matches the sliding surface, and is slidable on the sliding surface, a first through-hole formed through the support member, and a second through-hole formed through the sliding member. In the support leg, the leg member is provided so as to be fixed to the sliding member to extend downward through the first through-hole and the second through-hole.
[0011]
The sliding member pivots on a spherical support surface of the support member, causing the leg member to swing in an arc shape.
The sliding member pivots on a spherical support surface of the support member, causing the leg member to swing in an arc shape.
[0012]
Here, the above-described support leg may further include a fixing member provided to an outer peripheral portion of the sliding member and regulates the sliding of the sliding member by butting against the outer peripheral portion of the sliding member.
Here, the above-described support leg may further include a fixing member provided to an outer peripheral portion of the sliding member and regulates the sliding of the sliding member by butting against the outer peripheral portion of the sliding member.
[0013]
This fixing member is butted against the outer peripheral portion of the sliding member, making it possible to regulate the sliding of the sliding member and to fix the position of the sliding member, that is, the angle of the leg member.
This fixing member is butted against the outer peripheral portion of the sliding member, making it possible to regulate the sliding of the sliding member and to fix the position of the sliding member, that is, the angle of the leg member.
[0014]
Further, the leg member may regulate the pivot angle by butting against an inner peripheral surface of the first through-hole.
Further, the leg member may regulate the pivot angle by butting against an inner peripheral surface of the first through-hole.
[0015]
WO 2014/203660 Al 4 The leg member can pivot within a range of clearance with the inner peripheral surface of the first through-hole, thereby making it possible to regulate excessive displacement of the leg member.
Advantageous Effects of Invention
WO 2014/203660 Al 4 The leg member can pivot within a range of clearance with the inner peripheral surface of the first through-hole, thereby making it possible to regulate excessive displacement of the leg member.
Advantageous Effects of Invention
[0016]
According to the present invention, it is possible to easily and quickly perform attachment to an object to be supported and efficiently perform positioning with respect to an assembly reference position of the object to be supported.
Brief Description of Drawings
According to the present invention, it is possible to easily and quickly perform attachment to an object to be supported and efficiently perform positioning with respect to an assembly reference position of the object to be supported.
Brief Description of Drawings
[0017]
FIG. 1 is a side view illustrating a configuration when a fuselage of an aircraft is assembled using a support leg of the present invention.
FIG. 2 is a cross-sectional elevational view illustrating a configuration of a first jig.
FIG. 3 is a perspective developed view illustrating the configuration of the first jig.
FIGS. 4A to 4D are diagrams illustrating a flow of operation when an object to be supported is supported by the first jig.
FIG. 5 is a sectional elevational view illustrating a configuration of a second jig.
FIG. 6 is a perspective developed view illustrating the configuration of the second jig.
FIGS. 7A to 7D are diagrams illustrating a flow of operation when the object to be supported is supported by the second jig.
FIG. 8 is a perspective view illustrating a configuration of a support leg.
FIG. 9A is a side view, and FIG. 9 B is a front view of the support leg.
FIGS. 10A and 10B are diagrams illustrating a configuration of a supported portion provided to the support leg, and FIG. 10A is a view as seen from below of the support leg and FIG. 10A is a cross-sectional view of the supported portion.
FIG. 11 is perspective view illustrating an example of the first jig and an example of the second jig when a middle trunk section is supported.
FIG. 12 is a schematic view illustrating an attachment structure of a conventional support leg.
I I
WO 2014/203660 Al 5 , .
Description of Embodiments
FIG. 1 is a side view illustrating a configuration when a fuselage of an aircraft is assembled using a support leg of the present invention.
FIG. 2 is a cross-sectional elevational view illustrating a configuration of a first jig.
FIG. 3 is a perspective developed view illustrating the configuration of the first jig.
FIGS. 4A to 4D are diagrams illustrating a flow of operation when an object to be supported is supported by the first jig.
FIG. 5 is a sectional elevational view illustrating a configuration of a second jig.
FIG. 6 is a perspective developed view illustrating the configuration of the second jig.
FIGS. 7A to 7D are diagrams illustrating a flow of operation when the object to be supported is supported by the second jig.
FIG. 8 is a perspective view illustrating a configuration of a support leg.
FIG. 9A is a side view, and FIG. 9 B is a front view of the support leg.
FIGS. 10A and 10B are diagrams illustrating a configuration of a supported portion provided to the support leg, and FIG. 10A is a view as seen from below of the support leg and FIG. 10A is a cross-sectional view of the supported portion.
FIG. 11 is perspective view illustrating an example of the first jig and an example of the second jig when a middle trunk section is supported.
FIG. 12 is a schematic view illustrating an attachment structure of a conventional support leg.
I I
WO 2014/203660 Al 5 , .
Description of Embodiments
[0018]
An embodiment of a support jig according to the present invention will now be described with reference to the drawings.
FIG. 1 illustrates a configuration when a fuselage 100 of an aircraft is assembled using a first jig (jig) 10 and a second jig (jig) 20 according to this embodiment.
As illustrated in this FIG. 1, the fuselage 100 of an aircraft is assembled by sequentially assembling a main wing, a front trunk section, a rear trunk section, and the like (not illustrated) of body sections formed by dividing the fuselage 100 in a longitudinal direction, using a middle trunk section (object to be supported) 110 that includes an attaching portion 111 of the main wing as reference.
The first jig 10 and the second jig 20 support this middle trunk section 110 in accordance with a specific reference position determined in advance.
An embodiment of a support jig according to the present invention will now be described with reference to the drawings.
FIG. 1 illustrates a configuration when a fuselage 100 of an aircraft is assembled using a first jig (jig) 10 and a second jig (jig) 20 according to this embodiment.
As illustrated in this FIG. 1, the fuselage 100 of an aircraft is assembled by sequentially assembling a main wing, a front trunk section, a rear trunk section, and the like (not illustrated) of body sections formed by dividing the fuselage 100 in a longitudinal direction, using a middle trunk section (object to be supported) 110 that includes an attaching portion 111 of the main wing as reference.
The first jig 10 and the second jig 20 support this middle trunk section 110 in accordance with a specific reference position determined in advance.
[0019]
As illustrated in FIG. 2 and FIG. 3, the first jig 10 includes a base 11, a casing 12, a hydraulic cylinder 13, a tapered guide 14, a receiving portion 15, a rolling element 16, and a support member 17.
The base 11 is formed in a plate shape and fixed on the floor surface.
The casing 12 is formed in, for example, a rectangular cylindrical shape having an axis in the vertical direction, and a lower end portion thereof is fixed to a top surface of the base 11.
As illustrated in FIG. 2 and FIG. 3, the first jig 10 includes a base 11, a casing 12, a hydraulic cylinder 13, a tapered guide 14, a receiving portion 15, a rolling element 16, and a support member 17.
The base 11 is formed in a plate shape and fixed on the floor surface.
The casing 12 is formed in, for example, a rectangular cylindrical shape having an axis in the vertical direction, and a lower end portion thereof is fixed to a top surface of the base 11.
[0020]
The hydraulic cylinder 13 includes a rod 13b that is vertically retractable with respect to a cylinder body 13a fixed to the base 11 within the casing 12, and is adjustable in total length by feeding and discharging hydraulic oil to and from the cylinder body 13a by a hydraulic pump 18 that is provided outside.
Further, a flow rate adjustment valve 18v that adjusts a flow rate of the hydraulic oil is provided between the cylinder body 13a and the hydraulic pump 18, thereby making it possible to adjust an extending and retracting speed of the hydraulic cylinder 13 when the hydraulic pump 18 is operated.
The hydraulic cylinder 13 includes a rod 13b that is vertically retractable with respect to a cylinder body 13a fixed to the base 11 within the casing 12, and is adjustable in total length by feeding and discharging hydraulic oil to and from the cylinder body 13a by a hydraulic pump 18 that is provided outside.
Further, a flow rate adjustment valve 18v that adjusts a flow rate of the hydraulic oil is provided between the cylinder body 13a and the hydraulic pump 18, thereby making it possible to adjust an extending and retracting speed of the hydraulic cylinder 13 when the hydraulic pump 18 is operated.
[0021]
The tapered guide 14 is integrally provided on the casing 12, and an outer peripheral surface thereof is a tapered surface (guide surface) 14a that gradually decreases in diameter from the bottom to the top. This tapered surface 14a, as described in detail below, guides the support member 17 to a specific position in at least one direction within a horizontal plane by WO 2014/203660 Al 6 interfering with the support member 17 when the hydraulic cylinder 13 causes the support member 17 to descend. Further, a top of the tapered guide 14 is a flat surface 14b.
A cylindrical straight surface 14d having the same diameter as that of a lowermost portion of the tapered surface 14a is continuously formed on a lower end of the tapered surface 14a.
A cylindrical portion 14e that has an outer diameter smaller than that of the straight surface 14d and extends perpendicularly downward is formed below the straight surface 14d. A step surface 14f between this cylindrical portion 14e and the straight surface 14d is placed on a top surface 12a of the casing 12, and the cylindrical portion 14e is inserted into the casing 12 through a through-hole 12b formed through the top surface 12a.
Such a tapered guide 14 includes a through-hole 14c that extends vertically through the tapered guide 14, at a center portion of the flat surface 14b, allowing the rod 13b of the hydraulic cylinder 13 to protrude upward through this through-hole 14c.
The tapered guide 14 is integrally provided on the casing 12, and an outer peripheral surface thereof is a tapered surface (guide surface) 14a that gradually decreases in diameter from the bottom to the top. This tapered surface 14a, as described in detail below, guides the support member 17 to a specific position in at least one direction within a horizontal plane by WO 2014/203660 Al 6 interfering with the support member 17 when the hydraulic cylinder 13 causes the support member 17 to descend. Further, a top of the tapered guide 14 is a flat surface 14b.
A cylindrical straight surface 14d having the same diameter as that of a lowermost portion of the tapered surface 14a is continuously formed on a lower end of the tapered surface 14a.
A cylindrical portion 14e that has an outer diameter smaller than that of the straight surface 14d and extends perpendicularly downward is formed below the straight surface 14d. A step surface 14f between this cylindrical portion 14e and the straight surface 14d is placed on a top surface 12a of the casing 12, and the cylindrical portion 14e is inserted into the casing 12 through a through-hole 12b formed through the top surface 12a.
Such a tapered guide 14 includes a through-hole 14c that extends vertically through the tapered guide 14, at a center portion of the flat surface 14b, allowing the rod 13b of the hydraulic cylinder 13 to protrude upward through this through-hole 14c.
[0022]
The receiving portion 15 is formed of a disk-shaped plate portion 15a, a peripheral wall 15b that is continually formed in a circumferential direction on an outer peripheral portion of the plate portion 15a and rises upward, and a column portion 15c that is orthogonal to a surface of the plate portion 15a, extends downward, and is inserted into the through-hole 14c of the tapered guide 14. A lower end of the column portion 15c of this receiving portion 15 is integrally attached to a tip of the rod 13b of the hydraulic cylinder 13, and the plate portion 15a is positioned within a horizontal plane.
The receiving portion 15 is formed of a disk-shaped plate portion 15a, a peripheral wall 15b that is continually formed in a circumferential direction on an outer peripheral portion of the plate portion 15a and rises upward, and a column portion 15c that is orthogonal to a surface of the plate portion 15a, extends downward, and is inserted into the through-hole 14c of the tapered guide 14. A lower end of the column portion 15c of this receiving portion 15 is integrally attached to a tip of the rod 13b of the hydraulic cylinder 13, and the plate portion 15a is positioned within a horizontal plane.
[0023]
The rolling element 16 is a spherical element made of metal having a diameter that is greater than a rising height of the peripheral wall 15b from the plate portion 15a. This rolling element 16 is, for example, formed of a high carbon chromium bearing steel material, a stainless steel, a carbon tool steel, or the like. A plurality of the rolling element 16 are disposed on the inner side of the peripheral wall 15b of the receiving portion 15. When the number of rolling elements 16 is too large, the rolling elements 16 bump into each other on the receiving portion 15, causing an increase in a resistance to a sliding movement of the support member 17 described below. When the number of rolling elements 16 is too small, a load that acts on each individual rolling element 16 increases, resulting in the possibility of damaging the plate portion 15a or the like. Hence, these points are preferably taken into consideration WO 2014/203660 Al 7 when determining the number of the rolling elements 16. For example, the number of rolling elements 16 is preferably determined so as to ensure as small a load as possible and to prevent the plate portion 15a from being damaged by measuring the load when the support member 17 is pulled in a direction along the surface of the plate portion 15a and assessing the damage to the plate portion 15a, with the rolling elements 16 placed on the plate portion 15a and the support member 17 plced on top.
Further, the material of the rolling element 16 is preferably a material having as high a hardness as possible and, among the materials described as examples above, a carbon tool steel is preferably used.
The rolling element 16 is a spherical element made of metal having a diameter that is greater than a rising height of the peripheral wall 15b from the plate portion 15a. This rolling element 16 is, for example, formed of a high carbon chromium bearing steel material, a stainless steel, a carbon tool steel, or the like. A plurality of the rolling element 16 are disposed on the inner side of the peripheral wall 15b of the receiving portion 15. When the number of rolling elements 16 is too large, the rolling elements 16 bump into each other on the receiving portion 15, causing an increase in a resistance to a sliding movement of the support member 17 described below. When the number of rolling elements 16 is too small, a load that acts on each individual rolling element 16 increases, resulting in the possibility of damaging the plate portion 15a or the like. Hence, these points are preferably taken into consideration WO 2014/203660 Al 7 when determining the number of the rolling elements 16. For example, the number of rolling elements 16 is preferably determined so as to ensure as small a load as possible and to prevent the plate portion 15a from being damaged by measuring the load when the support member 17 is pulled in a direction along the surface of the plate portion 15a and assessing the damage to the plate portion 15a, with the rolling elements 16 placed on the plate portion 15a and the support member 17 plced on top.
Further, the material of the rolling element 16 is preferably a material having as high a hardness as possible and, among the materials described as examples above, a carbon tool steel is preferably used.
[0024]
The support member 17 includes a plate-shaped plate portion 17a and a cylindrical skirt portion 17b that extends downward from an outer peripheral portion of the plate portion 17a. The plate portion 17a is formed with an outer diameter that is larger than that of the receiving portion 15. The skirt portion 17b is formed with an inner diameter that is larger than an outer diameter of the straight surface 14d below the tapered surface 14a, and the outer diameter that is smaller than that of the top surface 12a of the casing 12. Accordingly, the above-described tapered guide 14 is formed so that the diameter of the tapered surface 14a comes closer and closer to the inner diameter of the skirt portion 17b from top to bottom.
Further, an inner peripheral edge portion of a lower end portion of the skirt portion 17b is preferably rounded, or chamfered at an angle corresponding to the taper angle of the tapered surface 14a.
A convex portion 17c that protrudes upward is formed on a top surface of the plate portion 17a, and a cone-shaped supporting concave portion 19 having a diameter that gradually decreases from top to bottom is formed in a center portion of the convex portion 17c.
This support member 17 is placed on the rolling elements 16 that are on the receiving portion 15.
The support member 17 includes a plate-shaped plate portion 17a and a cylindrical skirt portion 17b that extends downward from an outer peripheral portion of the plate portion 17a. The plate portion 17a is formed with an outer diameter that is larger than that of the receiving portion 15. The skirt portion 17b is formed with an inner diameter that is larger than an outer diameter of the straight surface 14d below the tapered surface 14a, and the outer diameter that is smaller than that of the top surface 12a of the casing 12. Accordingly, the above-described tapered guide 14 is formed so that the diameter of the tapered surface 14a comes closer and closer to the inner diameter of the skirt portion 17b from top to bottom.
Further, an inner peripheral edge portion of a lower end portion of the skirt portion 17b is preferably rounded, or chamfered at an angle corresponding to the taper angle of the tapered surface 14a.
A convex portion 17c that protrudes upward is formed on a top surface of the plate portion 17a, and a cone-shaped supporting concave portion 19 having a diameter that gradually decreases from top to bottom is formed in a center portion of the convex portion 17c.
This support member 17 is placed on the rolling elements 16 that are on the receiving portion 15.
[0025]
A fall prevention block 28 is mountable on both sides of the convex portion 17c of the support member 17, with the supporting concave portion 19 therebetween. The fall prevention block 28 has an L-shaped cross section, and is made of an upper surface plate portion 28a that extends along a top surface of the convex portion 17c of the support member 17, and a side surface plate portion 28b that is orthogonal to the upper surface plate portion 28a and fixed to a side surface of the convex portion 17c. This fall prevention block 28 WO 2014/203660 Al 8 prevents the support leg and the like of the object to be supported that is inserted into the supporting concave portion 19 from coming out of the supporting concave portion 19.
A fall prevention block 28 is mountable on both sides of the convex portion 17c of the support member 17, with the supporting concave portion 19 therebetween. The fall prevention block 28 has an L-shaped cross section, and is made of an upper surface plate portion 28a that extends along a top surface of the convex portion 17c of the support member 17, and a side surface plate portion 28b that is orthogonal to the upper surface plate portion 28a and fixed to a side surface of the convex portion 17c. This fall prevention block 28 WO 2014/203660 Al 8 prevents the support leg and the like of the object to be supported that is inserted into the supporting concave portion 19 from coming out of the supporting concave portion 19.
[0026]
As illustrated in FIGS. 4A to 4D, this first jig 10 causes the hydraulic cylinder 13 to extend and retract with the help of the hydraulic pump 18, thereby raising and lowering the support member 17. Wilh the hydraulic cylinder 13 extended and the skirt portion 17b of the support member 17 thus raised a distance above the tapered guide 14, the rolling elements 16 roll on the receiving portion 15, allowing the support member 17 to move freely along the plate portion 15a of the receiving portion 15, that is, within a horizontal plane.
The amount of movement within the horizontal plane of the support member 17 is regulated by the interference between the skirt portion 17b of the support member 17 and the peripheral wall 15b of the receiving portion 15.
Further, when the hydraulic cylinder 13 is retracted by the hydraulic pump 18 with the support member 17 raised, the lower end portion of the skirt portion 17b of the support member 17 interferes with the tapered surface 14a of the tapered guide 14, thereby guiding a center of the skirt portion 17b of the support member 17 to a center of the tapered surface 14a and ultimately placing the skirt portion 17b on the top surface 12a of the casing 12.
Then, an ascending and descending speed of the support member 17 is adjustable by adjusting an opening of the flow rate adjustment valve 18v.
As illustrated in FIGS. 4A to 4D, this first jig 10 causes the hydraulic cylinder 13 to extend and retract with the help of the hydraulic pump 18, thereby raising and lowering the support member 17. Wilh the hydraulic cylinder 13 extended and the skirt portion 17b of the support member 17 thus raised a distance above the tapered guide 14, the rolling elements 16 roll on the receiving portion 15, allowing the support member 17 to move freely along the plate portion 15a of the receiving portion 15, that is, within a horizontal plane.
The amount of movement within the horizontal plane of the support member 17 is regulated by the interference between the skirt portion 17b of the support member 17 and the peripheral wall 15b of the receiving portion 15.
Further, when the hydraulic cylinder 13 is retracted by the hydraulic pump 18 with the support member 17 raised, the lower end portion of the skirt portion 17b of the support member 17 interferes with the tapered surface 14a of the tapered guide 14, thereby guiding a center of the skirt portion 17b of the support member 17 to a center of the tapered surface 14a and ultimately placing the skirt portion 17b on the top surface 12a of the casing 12.
Then, an ascending and descending speed of the support member 17 is adjustable by adjusting an opening of the flow rate adjustment valve 18v.
[0027]
In the meantime, the second jig 20 has a basic configuration that is similar to that of the above-described first jig 10, and components thereof that are common to those of the first jig 10 are denoted using the same symbols.
As illustrated in FIG. 5 and FIG. 6, the second jig 20 includes the base 11, the casing 12, the hydraulic cylinder 13, a tapered block 24, the receiving portion 15, a guide member 22, the rolling element 16, and the support member 17.
In the meantime, the second jig 20 has a basic configuration that is similar to that of the above-described first jig 10, and components thereof that are common to those of the first jig 10 are denoted using the same symbols.
As illustrated in FIG. 5 and FIG. 6, the second jig 20 includes the base 11, the casing 12, the hydraulic cylinder 13, a tapered block 24, the receiving portion 15, a guide member 22, the rolling element 16, and the support member 17.
[0028]
The guide member 22 includes a cylindrical portion 22a that is inserted into the through-hole 12b formed through the top surface 12a of the casing 12, a large diameter portion 22b that has an outer diameter larger than that of the cylindrical portion 22a and that is supported on the top surface 12a of the casing 12, and a through-hole 22c that extends vertically through the guide member 22 and that allows the column portion 15c of the receiving portion 15 to be inserted thereinto.
1 t . , The column portion 15c is inserted into this guide member 22, thereby supporting the receiving portion 15 so that the receiving portion 15 can ascend and descend vertically.
The guide member 22 includes a cylindrical portion 22a that is inserted into the through-hole 12b formed through the top surface 12a of the casing 12, a large diameter portion 22b that has an outer diameter larger than that of the cylindrical portion 22a and that is supported on the top surface 12a of the casing 12, and a through-hole 22c that extends vertically through the guide member 22 and that allows the column portion 15c of the receiving portion 15 to be inserted thereinto.
1 t . , The column portion 15c is inserted into this guide member 22, thereby supporting the receiving portion 15 so that the receiving portion 15 can ascend and descend vertically.
[0029]
The tapered block 24 is made of block members (guide members) 24b, 24b that are positioned within a horizontal plane and disposed in parallel on the top surface 12a of the casing 12 on both sides of the through-hole 12b. On each of the block members 24b, a slanted surface (guide surface) 25 is formed on a side facing the other block member 24b, gradually increasing a space to the other block member 24b from bottom to top. In other words, the tapered block 24 includes a pair of slanted surfaces 25 that face each other with the support member 17 therebetween in the plan view, and the space between the pair of slanted surfaces 25 is formed so as to gradually come closer to the outer diameter of the skirt portion 17b from top to bottom.
The tapered block 24 is made of block members (guide members) 24b, 24b that are positioned within a horizontal plane and disposed in parallel on the top surface 12a of the casing 12 on both sides of the through-hole 12b. On each of the block members 24b, a slanted surface (guide surface) 25 is formed on a side facing the other block member 24b, gradually increasing a space to the other block member 24b from bottom to top. In other words, the tapered block 24 includes a pair of slanted surfaces 25 that face each other with the support member 17 therebetween in the plan view, and the space between the pair of slanted surfaces 25 is formed so as to gradually come closer to the outer diameter of the skirt portion 17b from top to bottom.
[0030]
A plurality of rolling elements 16 are provided on the plate portion 15a of the receiving portion 15 that is provided on the tip of the cylinder body 13a of the hydraulic cylinder 13, and the support member 17 is placed on these rolling elements 16.
A plurality of rolling elements 16 are provided on the plate portion 15a of the receiving portion 15 that is provided on the tip of the cylinder body 13a of the hydraulic cylinder 13, and the support member 17 is placed on these rolling elements 16.
[0031]
As illustrated in FIGS. 7A to 7D, this second jig 20 causes the hydraulic cylinder 13 to extend and retract with the help of the hydraulic pump 18, thereby raising and lowering the support member 17. With the hydraulic cylinder 13 extended and the skirt portion 17b of the support member 17 thus raised a distance above the tapered block 24, the rolling elements 16 roll on the receiving portion 15, allowing the support member 17 to move freely on the plate portion 15a of the receiving portion 15, that is, within a horizontal plane.
The amount of movement within the horizontal plane of the support member 17 is regulated by the interference between the skirt portion 17b of the support member 17 and the peripheral wall 15b of the receiving portion 15.
Further, when the hydraulic cylinder 13 is retracted by the hydraulic pump 18 with the support member 17 raised, the lower end portion of the skirt portion 17b of the support member 17 interferes with the slanted surfaces 25, 25 of the tapered block 24, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the block members 24b, 24b facing each other and ultimately placing the skirt portion 17b on the top surface 12a of the casing 12.
Then, the ascending and descending speed of the support member 17 is adjustable by adjusting the opening of the flow rate adjustment valve 18v.
As illustrated in FIGS. 7A to 7D, this second jig 20 causes the hydraulic cylinder 13 to extend and retract with the help of the hydraulic pump 18, thereby raising and lowering the support member 17. With the hydraulic cylinder 13 extended and the skirt portion 17b of the support member 17 thus raised a distance above the tapered block 24, the rolling elements 16 roll on the receiving portion 15, allowing the support member 17 to move freely on the plate portion 15a of the receiving portion 15, that is, within a horizontal plane.
The amount of movement within the horizontal plane of the support member 17 is regulated by the interference between the skirt portion 17b of the support member 17 and the peripheral wall 15b of the receiving portion 15.
Further, when the hydraulic cylinder 13 is retracted by the hydraulic pump 18 with the support member 17 raised, the lower end portion of the skirt portion 17b of the support member 17 interferes with the slanted surfaces 25, 25 of the tapered block 24, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the block members 24b, 24b facing each other and ultimately placing the skirt portion 17b on the top surface 12a of the casing 12.
Then, the ascending and descending speed of the support member 17 is adjustable by adjusting the opening of the flow rate adjustment valve 18v.
[0032]
To support the middle trunk section 110 using the first jig 10 and the second jig 20 such as described above, a plurality of support legs (leg portions) 120 that protrude downward are mounted at predetermined positions on the bottom surface of the middle trunk section 110, as illustrated in FIG. 1, FIGS.
4A to 4D, and FIGS. 7A to 7D.
As illustrated in FIG. 8, FIG. 9A, and FIG. 9B, each of the support legs 120 includes a support leg body 121, and a supported portion 130 provided on the lower portion of the support leg body 121.
To support the middle trunk section 110 using the first jig 10 and the second jig 20 such as described above, a plurality of support legs (leg portions) 120 that protrude downward are mounted at predetermined positions on the bottom surface of the middle trunk section 110, as illustrated in FIG. 1, FIGS.
4A to 4D, and FIGS. 7A to 7D.
As illustrated in FIG. 8, FIG. 9A, and FIG. 9B, each of the support legs 120 includes a support leg body 121, and a supported portion 130 provided on the lower portion of the support leg body 121.
[0033]
The support leg body 121 is made of steel, and formed of a base block 122, and an attachment bracket 123 that is provided on the base block 122.
The base block 122 includes a baseplate 124, a rising wall 125 that rises upward from three sides of an outer peripheral portion of the baseplate 124, and an upper plate 126 supported on the rising wall 125.
The attachment bracket 123 is formed of an attachment plate 127 that is integrally provided to the upper plate 126, extends upward from the upper plate 126, and is fixed to the middle trunk section 110, and a reinforcement plate that is attached on a side opposite to the side facing the middle trunk section 110 of the attachment plate 127 and positioned within a plane orthogonal to the attachment plate 127 and the upper plate 126. The attachment plate 127 has a shape corresponding to a mounting area of the middle trunk section 110, and can be fixed to a bolt hole (not illustrated) formed on the middle trunk section 110 via a bolt (not illustrated). Further, the attachment plate 127 and the middle trunk section 110 may be positioned by providing a positioning pin or the like that is insertable into a pin hole (not illustrated) formed on the middle trunk section 110 to the attachment plate 127, and fitting the positioning pin to the pin hole. Here, a dimension and a shape of each component of the support leg body 121, and a shape, an angle, and the like of the attachment plate 127 of the plurality of support legs 120 are suitably set in accordance with an area of the middle trunk section 110 where each of the support legs 120 is to be mounted, and there is no intention of specific limitation thereof.
It should be noted that while FIG. 8, FIG. 9A, and FIG. 98 illustrate a = support leg 120A (refer to FIG. 1) installed on the first jig 10, a support leg 120B installed on the second jig 20 has a shape different from that of the WO 2014/203660 Al 11 support leg body 121, but has the same functional configuration as that of the support leg 120A.
The support leg body 121 is made of steel, and formed of a base block 122, and an attachment bracket 123 that is provided on the base block 122.
The base block 122 includes a baseplate 124, a rising wall 125 that rises upward from three sides of an outer peripheral portion of the baseplate 124, and an upper plate 126 supported on the rising wall 125.
The attachment bracket 123 is formed of an attachment plate 127 that is integrally provided to the upper plate 126, extends upward from the upper plate 126, and is fixed to the middle trunk section 110, and a reinforcement plate that is attached on a side opposite to the side facing the middle trunk section 110 of the attachment plate 127 and positioned within a plane orthogonal to the attachment plate 127 and the upper plate 126. The attachment plate 127 has a shape corresponding to a mounting area of the middle trunk section 110, and can be fixed to a bolt hole (not illustrated) formed on the middle trunk section 110 via a bolt (not illustrated). Further, the attachment plate 127 and the middle trunk section 110 may be positioned by providing a positioning pin or the like that is insertable into a pin hole (not illustrated) formed on the middle trunk section 110 to the attachment plate 127, and fitting the positioning pin to the pin hole. Here, a dimension and a shape of each component of the support leg body 121, and a shape, an angle, and the like of the attachment plate 127 of the plurality of support legs 120 are suitably set in accordance with an area of the middle trunk section 110 where each of the support legs 120 is to be mounted, and there is no intention of specific limitation thereof.
It should be noted that while FIG. 8, FIG. 9A, and FIG. 98 illustrate a = support leg 120A (refer to FIG. 1) installed on the first jig 10, a support leg 120B installed on the second jig 20 has a shape different from that of the WO 2014/203660 Al 11 support leg body 121, but has the same functional configuration as that of the support leg 120A.
[0034]
As illustrated in FIG. 10A and FIG. 10B, the supported portion 130 is provided on the baseplate 124 of the support leg body 121.
This supported portion 130 mainly includes an upper sliding base (support member) 131, a lower sliding base (support member) 132, an upper sliding member (sliding member) 133, a lower sliding member (sliding member) 134, and a leg member 135.
As illustrated in FIG. 10A and FIG. 10B, the supported portion 130 is provided on the baseplate 124 of the support leg body 121.
This supported portion 130 mainly includes an upper sliding base (support member) 131, a lower sliding base (support member) 132, an upper sliding member (sliding member) 133, a lower sliding member (sliding member) 134, and a leg member 135.
[0035]
The upper sliding base 131 is integrally welded on the top surface of the baseplate 124. A downwardly concave support surface (sliding surface) 131a formed at a predetermined curvature is formed on a top surface of the upper sliding base 131.
The lower sliding base 132 is integrally welded on the bottom surface of the baseplate 124, facing the upper sliding base 131 with the baseplate 124 therebetween. A downwardly convex support surface (sliding surface) 132a formed at a curvature concentric with the support surface 131a is formed on a bottom surface of the lower sliding base 132.
Then, a through-hole (first through-hole) 136 having a center axis that extends through a center of the concave support surface 131a and the convex support surface 132a is formed through the upper sliding base 131, the baseplate 124, and the lower sliding base 132.
The upper sliding base 131 is integrally welded on the top surface of the baseplate 124. A downwardly concave support surface (sliding surface) 131a formed at a predetermined curvature is formed on a top surface of the upper sliding base 131.
The lower sliding base 132 is integrally welded on the bottom surface of the baseplate 124, facing the upper sliding base 131 with the baseplate 124 therebetween. A downwardly convex support surface (sliding surface) 132a formed at a curvature concentric with the support surface 131a is formed on a bottom surface of the lower sliding base 132.
Then, a through-hole (first through-hole) 136 having a center axis that extends through a center of the concave support surface 131a and the convex support surface 132a is formed through the upper sliding base 131, the baseplate 124, and the lower sliding base 132.
[0036]
The upper sliding member 133 is circular in the plan view, with a bottom surface thereof established as a downwardly convex sliding surface (sliding surface) 133a formed at the same curvature as that of the concave support surface 131a of the upper sliding base 131, and a top surface thereof established as a flat surface 133b. The upper sliding member 133 is placed on the upper sliding base 131 with the convex sliding surface 133a butted against the concave support surface 131a of the upper sliding base 131. Accordingly, the convex sliding surface 133a and the concave support surface 131a slide, thereby allowing the upper sliding member 133 to slide along the concave support surface 131a.
Further, the lower sliding member 134 is circular in the plan view, with a top surface thereof established as a downwardly concave sliding surface (sliding surface) 134a formed at substantially the same curvature as that of the convex support surface 132a of the lower sliding base 132, and a bottom WO 2014/203660 Al 12 surface thereof established as a flat surface 134b. The lower sliding member 134 is disposed beneath the lower sliding base 132 with the concave sliding surface 134a butted against the convex support surface 132a of the upper sliding base 131. Accordingly, the concave sliding surface 134a and the convex support surface 132a slide, thereby allowing the lower sliding member 134 to slide along the convex support surface 132a.
Through-holes (second through-holes) 133c, 134c having an inner diameter smaller than that of the through-hole 136 are formed through the upper sliding member 133 and the lower sliding member 134.
The upper sliding member 133 is circular in the plan view, with a bottom surface thereof established as a downwardly convex sliding surface (sliding surface) 133a formed at the same curvature as that of the concave support surface 131a of the upper sliding base 131, and a top surface thereof established as a flat surface 133b. The upper sliding member 133 is placed on the upper sliding base 131 with the convex sliding surface 133a butted against the concave support surface 131a of the upper sliding base 131. Accordingly, the convex sliding surface 133a and the concave support surface 131a slide, thereby allowing the upper sliding member 133 to slide along the concave support surface 131a.
Further, the lower sliding member 134 is circular in the plan view, with a top surface thereof established as a downwardly concave sliding surface (sliding surface) 134a formed at substantially the same curvature as that of the convex support surface 132a of the lower sliding base 132, and a bottom WO 2014/203660 Al 12 surface thereof established as a flat surface 134b. The lower sliding member 134 is disposed beneath the lower sliding base 132 with the concave sliding surface 134a butted against the convex support surface 132a of the upper sliding base 131. Accordingly, the concave sliding surface 134a and the convex support surface 132a slide, thereby allowing the lower sliding member 134 to slide along the convex support surface 132a.
Through-holes (second through-holes) 133c, 134c having an inner diameter smaller than that of the through-hole 136 are formed through the upper sliding member 133 and the lower sliding member 134.
[0037]
The leg member 135 includes a shaft portion 135a having a circular cross-section, and a head portion 135b integrally formed with a lower end portion of the shaft portion 135a.
The shaft portion 135a has an outer diameter that allows the shaft portion 135a to be inserted into the through-holes 133a, 134a of the upper sliding member 133 and the lower sliding member 134. Thread grooves 135c, 135d are respectively formed at least on an upper portion and a lower portion of this shaft portion 135a.
The head portion 135b has a spherical portion (positioning portion) 135e that has an outer diameter larger than that of the shaft portion 135a and that is formed in a downwardly convex hemispherical shape on the bottom surface of the shaft portion 135a.
With a lower fixing screw 138 mounted on the thread groove 135d of the shaft portion 135a in advance, the shaft portion 135a of this leg member 135 is passed through the through-hole 134c of the lower sliding member 134, the through-hole 136, and the through-hole 133c of the upper sliding member 133 from below, causing the section where the upper thread groove 135c is formed to protrude above the upper sliding member 133. In this state, an upper fixing screw 137 is mounted on the thread groove 135c. Then, the upper fixing screw 137 and the lower fixing screw 138 are tightened, allowing the upper sliding member 133, the upper sliding base 131 and the lower sliding base 132 above and below the baseplate 124, and the lower sliding member 134 to be fastened between the upper fixing screw 137 and the lower fixing screw 138.
The leg member 135 includes a shaft portion 135a having a circular cross-section, and a head portion 135b integrally formed with a lower end portion of the shaft portion 135a.
The shaft portion 135a has an outer diameter that allows the shaft portion 135a to be inserted into the through-holes 133a, 134a of the upper sliding member 133 and the lower sliding member 134. Thread grooves 135c, 135d are respectively formed at least on an upper portion and a lower portion of this shaft portion 135a.
The head portion 135b has a spherical portion (positioning portion) 135e that has an outer diameter larger than that of the shaft portion 135a and that is formed in a downwardly convex hemispherical shape on the bottom surface of the shaft portion 135a.
With a lower fixing screw 138 mounted on the thread groove 135d of the shaft portion 135a in advance, the shaft portion 135a of this leg member 135 is passed through the through-hole 134c of the lower sliding member 134, the through-hole 136, and the through-hole 133c of the upper sliding member 133 from below, causing the section where the upper thread groove 135c is formed to protrude above the upper sliding member 133. In this state, an upper fixing screw 137 is mounted on the thread groove 135c. Then, the upper fixing screw 137 and the lower fixing screw 138 are tightened, allowing the upper sliding member 133, the upper sliding base 131 and the lower sliding base 132 above and below the baseplate 124, and the lower sliding member 134 to be fastened between the upper fixing screw 137 and the lower fixing screw 138.
[0038]
Further, three fixing members 139 spaced apart in a circumferential direction are provided on an outer peripheral side of the lower sliding base and the lower sliding member 134, on the bottom surface of the baseplate 124.
=
WO 2014/203660 Al 13 Each of the fixing members 139 includes a fixing block 139a fixed to the bottom surface of the baseplate 124, and a fixing bolt 139b that is screwed into a screw hole (not illustrated) formed in this fixing block 139a and a tip of which butts against an outer peripheral surface 134d of the lower sliding member 134. The fixing bolt 139b can be moved back and forth along a radial direction of the lower sliding member 134 with respect to the fixing block 139a when rotated about an axis of the fixing bolt 139b by a tool or the like.
When the tip of each of the fixing bolts 139b of the three fixing members 139 is butted against the outer peripheral surface 134d of the lower sliding member 134, the lower sliding member 134 is fixed. Then, the angle of inclination of the leg member 135 that extends through the lower sliding member 134 as well as that of the upper sliding member 133 through which the leg member 135 extends is fixed along with that of the lower sliding member 134.
Then, the upper fixing screw 137 and the lower fixing screw 138 are slightly loosened, the fixing bolts 139b of the three fixing members 139 are loosened and the tip portions thereof are separated from the outer peripheral surface 134d of the lower sliding member 134, causing the lower sliding member 134 to freely slide along the convex support surface 132a. When the lower sliding member 134 slides, the lower sliding member 134, the leg member 135, and the upper sliding member 133 slide along the concave support surface 131a and the convex support surface 132a, that is, the leg member 135 swings, changing the angle of inclination of the leg member 135. At this time, the angle of inclination of the leg member 135 is regulated by the leg member 135 interfering with an inner peripheral surface of the through-hole 136.
Further, three fixing members 139 spaced apart in a circumferential direction are provided on an outer peripheral side of the lower sliding base and the lower sliding member 134, on the bottom surface of the baseplate 124.
=
WO 2014/203660 Al 13 Each of the fixing members 139 includes a fixing block 139a fixed to the bottom surface of the baseplate 124, and a fixing bolt 139b that is screwed into a screw hole (not illustrated) formed in this fixing block 139a and a tip of which butts against an outer peripheral surface 134d of the lower sliding member 134. The fixing bolt 139b can be moved back and forth along a radial direction of the lower sliding member 134 with respect to the fixing block 139a when rotated about an axis of the fixing bolt 139b by a tool or the like.
When the tip of each of the fixing bolts 139b of the three fixing members 139 is butted against the outer peripheral surface 134d of the lower sliding member 134, the lower sliding member 134 is fixed. Then, the angle of inclination of the leg member 135 that extends through the lower sliding member 134 as well as that of the upper sliding member 133 through which the leg member 135 extends is fixed along with that of the lower sliding member 134.
Then, the upper fixing screw 137 and the lower fixing screw 138 are slightly loosened, the fixing bolts 139b of the three fixing members 139 are loosened and the tip portions thereof are separated from the outer peripheral surface 134d of the lower sliding member 134, causing the lower sliding member 134 to freely slide along the convex support surface 132a. When the lower sliding member 134 slides, the lower sliding member 134, the leg member 135, and the upper sliding member 133 slide along the concave support surface 131a and the convex support surface 132a, that is, the leg member 135 swings, changing the angle of inclination of the leg member 135. At this time, the angle of inclination of the leg member 135 is regulated by the leg member 135 interfering with an inner peripheral surface of the through-hole 136.
[0039]
The following describes the assembly of the fuselage 100 of an aircraft.
As illustrated in FIG. 1 and FIG. 11, a pair of the first jigs 10, 10 and a pair of the second jigs 20, 20 are fixed in predetermined positions in an assembly space where the fuselage 100 of an aircraft is to be assembled. The installation spacing and positional relationship between the first jigs 10, 10 and the second jigs 20, 20 match the designed installation spacing and positional relationship of the support leg 120 provided on the middle trunk section 110.
It should be noted that the first jigs 10, 10 and the second jigs 20, 20 are disposed so as to be spaced apart along a longitudinal direction S of the fuselage 100. Then, the pair of the first jigs 10, 10 and the pair of the second jigs 20, 20 are arranged facing each other with the center of the fuselage 100 therebetween, along a width direction W of the fuselage 100. Further, the WO 2014/203660 Al 14 PCT/JP2014/062969 block members 24b, 24b of each of the second jigs 20 are provided so as to extend in the width direction W of the fuselage 100 and to face each other in the longitudinal direction S of the fuselage 100.
The following describes the assembly of the fuselage 100 of an aircraft.
As illustrated in FIG. 1 and FIG. 11, a pair of the first jigs 10, 10 and a pair of the second jigs 20, 20 are fixed in predetermined positions in an assembly space where the fuselage 100 of an aircraft is to be assembled. The installation spacing and positional relationship between the first jigs 10, 10 and the second jigs 20, 20 match the designed installation spacing and positional relationship of the support leg 120 provided on the middle trunk section 110.
It should be noted that the first jigs 10, 10 and the second jigs 20, 20 are disposed so as to be spaced apart along a longitudinal direction S of the fuselage 100. Then, the pair of the first jigs 10, 10 and the pair of the second jigs 20, 20 are arranged facing each other with the center of the fuselage 100 therebetween, along a width direction W of the fuselage 100. Further, the WO 2014/203660 Al 14 PCT/JP2014/062969 block members 24b, 24b of each of the second jigs 20 are provided so as to extend in the width direction W of the fuselage 100 and to face each other in the longitudinal direction S of the fuselage 100.
[0040]
The middle trunk section 110 pre-assembled at a different location is loaded onto a moving truck or suspended by a crane so as to be brought into the assembly space.
When the moving truck or the like is used, the middle trunk section 110 supported on the moving truck is inserted between the first jigs 10, 10 and the second jigs 20, 20. At this time, in the moving truck, the middle trunk section 110 is supported in a position higher than the first jigs 10, 10 and the second jigs 20, 20.
When the crane is used, the middle trunk section 110 is lifted and positioned perpendicularly above the first jigs 10, 10 and the second jigs 20, 20.
The middle trunk section 110 pre-assembled at a different location is loaded onto a moving truck or suspended by a crane so as to be brought into the assembly space.
When the moving truck or the like is used, the middle trunk section 110 supported on the moving truck is inserted between the first jigs 10, 10 and the second jigs 20, 20. At this time, in the moving truck, the middle trunk section 110 is supported in a position higher than the first jigs 10, 10 and the second jigs 20, 20.
When the crane is used, the middle trunk section 110 is lifted and positioned perpendicularly above the first jigs 10, 10 and the second jigs 20, 20.
[0041]
Here, the above-described support leg 120 is mounted in a predetermined position on the middle trunk section 110. The attachment plate 127 of the support leg 120 is made to face the predetermined position of the middle trunk section 110 and the two are fastened to each other by a bolt and the like. At this time, if there is an assembly error in the middle trunk section 110, the attachment position and the angle of the support leg 120 may be affected, causing the position of the spherical portion 135e of the leg member 135 to deviate from the designed position.
Additionally, the upper fixing screw 137 is loosened and the tip of the fixing bolt 139b of each of the fixing members 139 is separated from the outer peripheral surface 134d of the lower sliding member 134 on the support leg 120.
Accordingly, the leg member 135 of the support leg 120 can slide and swing along the concave support surface 131a and the convex support surface 132a, and the position of the spherical portion 135e that is the tip portion of the leg member 135 can be changed.
Here, the above-described support leg 120 is mounted in a predetermined position on the middle trunk section 110. The attachment plate 127 of the support leg 120 is made to face the predetermined position of the middle trunk section 110 and the two are fastened to each other by a bolt and the like. At this time, if there is an assembly error in the middle trunk section 110, the attachment position and the angle of the support leg 120 may be affected, causing the position of the spherical portion 135e of the leg member 135 to deviate from the designed position.
Additionally, the upper fixing screw 137 is loosened and the tip of the fixing bolt 139b of each of the fixing members 139 is separated from the outer peripheral surface 134d of the lower sliding member 134 on the support leg 120.
Accordingly, the leg member 135 of the support leg 120 can slide and swing along the concave support surface 131a and the convex support surface 132a, and the position of the spherical portion 135e that is the tip portion of the leg member 135 can be changed.
[0042]
As illustrated in FIG. 4A and FIG. 7A, with the support leg 120 of the middle trunk section 110 positioned perpendicularly above the first jigs 10, and the second jigs 20, 20, the hydraulic cylinder 13 of each of the first jigs 10, and the second jigs 20, 20 is extended by the hydraulic pump 18, thereby raising the support member 17.
Then, as illustrated in FIG. 4B and FIG. 7B, the spherical portion 135e of the support leg 120 of the middle trunk section 110 is inserted within the WO 2014/203660 Al 15 =
supporting concave portion 19 of the support member 17. The support member 17 moves freely within a horizontal plane by the rolling of the rolling elements 16 on the receiving portion 15 and thus, when the spherical portion 135e is inserted within the supporting concave portion 19 while the support member 17 is raised, the spherical surface of the spherical portion 135e follows the supporting concave portion 19, thereby automatically aligning a center of the spherical portion 135e with a center of the supporting concave portion 19. At this time, when the spherical portion 135e and the supporting concave portion 19 are deviated from each other in the horizontal direction just before the spherical portion 135e is inserted into the supporting concave portion 19, a worker can push and slide the support member 17 with his or her hands in the horizontal direction, and align the spherical portion 135e with the supporting concave portion 19. Further, on the support leg 120 side as well, the angle of the leg member 135 changes when the spherical portion 135e is inserted into the supporting concave portion 19, allowing the alignment to be made.
As illustrated in FIG. 4A and FIG. 7A, with the support leg 120 of the middle trunk section 110 positioned perpendicularly above the first jigs 10, and the second jigs 20, 20, the hydraulic cylinder 13 of each of the first jigs 10, and the second jigs 20, 20 is extended by the hydraulic pump 18, thereby raising the support member 17.
Then, as illustrated in FIG. 4B and FIG. 7B, the spherical portion 135e of the support leg 120 of the middle trunk section 110 is inserted within the WO 2014/203660 Al 15 =
supporting concave portion 19 of the support member 17. The support member 17 moves freely within a horizontal plane by the rolling of the rolling elements 16 on the receiving portion 15 and thus, when the spherical portion 135e is inserted within the supporting concave portion 19 while the support member 17 is raised, the spherical surface of the spherical portion 135e follows the supporting concave portion 19, thereby automatically aligning a center of the spherical portion 135e with a center of the supporting concave portion 19. At this time, when the spherical portion 135e and the supporting concave portion 19 are deviated from each other in the horizontal direction just before the spherical portion 135e is inserted into the supporting concave portion 19, a worker can push and slide the support member 17 with his or her hands in the horizontal direction, and align the spherical portion 135e with the supporting concave portion 19. Further, on the support leg 120 side as well, the angle of the leg member 135 changes when the spherical portion 135e is inserted into the supporting concave portion 19, allowing the alignment to be made.
[0043]
Once the spherical portions 135e are inserted into the supporting concave portion 19 for all of the first jigs 10, 10 and the second jigs 20, 20, the moving truck and crane are withdrawn.
Once the spherical portions 135e are inserted into the supporting concave portion 19 for all of the first jigs 10, 10 and the second jigs 20, 20, the moving truck and crane are withdrawn.
[0044]
Next, the hydraulic pump 18 is operated to retract the hydraulic cylinders 13 of the first jigs 10, 10 and the second jigs 20, 20. Then, the support members 17 of the first jigs 10, 10 and the second jigs 20, 20 descend.
At this time, the descending speed of the support members 17 is preferably adjusted by the adjustment of the opening of the flow rate adjustment valves 18v so that no impact is applied to the middle trunk section 110. Furthermore, the descending speed of the support members 17 is preferably adjusted by the adjustment of the opening of each of the flow rate adjustment valves 18v so that the support members 17 of the first jigs 10, 10 and the second jigs 20, descend simultaneously.
In the first jig 10, when the support member 17 descends, the lower end portion of the skirt portion 17b interferes with the tapered surface 14a of the tapered guide 14, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the tapered surface 14a, as illustrated in FIGS. 4C and 4D. Then, the skirt portion 17b of the support member 17 is ultimately placed on the top surface 12a of the casing 12 and, in this state, the center of the support member 17 is aligned with the center of the tapered guide 14.
WO 2014/203660 Al 16 =
Further, in the second jig 20, when the support member 17 descends, the lower end portion of the skirt portion 17b interferes with the slanted surfaces 25, 25 of the tapered block 24, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the block members 24b, 24b facing each other, as illustrated in FIGS. 7C and 7D. Then, the skirt portion 17b of the support member 17 is ultimately placed on the top surface 12a of the casing 12 and, in this state, the center of the support member 17 is aligned with the center of the block members 24b, 24b facing each other.
Next, the hydraulic pump 18 is operated to retract the hydraulic cylinders 13 of the first jigs 10, 10 and the second jigs 20, 20. Then, the support members 17 of the first jigs 10, 10 and the second jigs 20, 20 descend.
At this time, the descending speed of the support members 17 is preferably adjusted by the adjustment of the opening of the flow rate adjustment valves 18v so that no impact is applied to the middle trunk section 110. Furthermore, the descending speed of the support members 17 is preferably adjusted by the adjustment of the opening of each of the flow rate adjustment valves 18v so that the support members 17 of the first jigs 10, 10 and the second jigs 20, descend simultaneously.
In the first jig 10, when the support member 17 descends, the lower end portion of the skirt portion 17b interferes with the tapered surface 14a of the tapered guide 14, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the tapered surface 14a, as illustrated in FIGS. 4C and 4D. Then, the skirt portion 17b of the support member 17 is ultimately placed on the top surface 12a of the casing 12 and, in this state, the center of the support member 17 is aligned with the center of the tapered guide 14.
WO 2014/203660 Al 16 =
Further, in the second jig 20, when the support member 17 descends, the lower end portion of the skirt portion 17b interferes with the slanted surfaces 25, 25 of the tapered block 24, thereby guiding the center of the skirt portion 17b of the support member 17 to the center of the block members 24b, 24b facing each other, as illustrated in FIGS. 7C and 7D. Then, the skirt portion 17b of the support member 17 is ultimately placed on the top surface 12a of the casing 12 and, in this state, the center of the support member 17 is aligned with the center of the block members 24b, 24b facing each other.
[0045]
Thus, the supporting concave portion 19 of the support member 17 of each of the first jigs 10, 10 and the second jigs 20, 20 is guided to and positioned in a specific position.
At this time, the spherical portion 135e fitted within the supporting concave portion 19 moves following the support member 17 that descends along the slanted surfaces 25, 25 of the tapered block 24 by the changing of the angle of the leg member 135. Accordingly, even if there is a manufacturing error of the middle trunk section 110, the spherical portion 135e is supported while kept within the supporting concave portion 19 by the swing movement of the leg member 135.
Further, when the middle trunk section 110 deviates in the horizontal direction from the predetermined reference position with the support member 17 lowered to the lower end, it is also possible to finely adjust the position of the middle trunk section 110 by adjusting the screwing amount of the fixing bolts 139b of the fixing members 139 on the outer peripheral side of the lower sliding member 134.
Thus, the supporting concave portion 19 of the support member 17 of each of the first jigs 10, 10 and the second jigs 20, 20 is guided to and positioned in a specific position.
At this time, the spherical portion 135e fitted within the supporting concave portion 19 moves following the support member 17 that descends along the slanted surfaces 25, 25 of the tapered block 24 by the changing of the angle of the leg member 135. Accordingly, even if there is a manufacturing error of the middle trunk section 110, the spherical portion 135e is supported while kept within the supporting concave portion 19 by the swing movement of the leg member 135.
Further, when the middle trunk section 110 deviates in the horizontal direction from the predetermined reference position with the support member 17 lowered to the lower end, it is also possible to finely adjust the position of the middle trunk section 110 by adjusting the screwing amount of the fixing bolts 139b of the fixing members 139 on the outer peripheral side of the lower sliding member 134.
[0046]
Thus, the middle trunk section 110 is positioned in the longitudinal direction S and the horizontal direction W of the fuselage 100 by each jig of the pair of the first jigs 10, 10, and positioned in the longitudinal direction S
of the fuselage 100 by each jig of the pair of the second jigs 20, 20.
In this state, the tip portion of the fixing bolt 139b of each of the fixing members 139 is butted against the lower sliding member 134 to fix the position, and the upper fixing screw 137 and the lower fixing screw 138 are tightened, thereby fixing the angle of the leg member 135.
It should be noted that the middle trunk section 110 can also be supported at a location other than the above-described first jigs 10, 10 and second jigs 20, 20 and, in such a case, only a height needs to be aligned with WO 2014/203660 Al 17 PCT/JP2014/062969 . .
the middle trunk section 110 at the location other than the first jigs 10, 10, and the second jigs 20, 20.
Thus, the middle trunk section 110 is positioned in the longitudinal direction S and the horizontal direction W of the fuselage 100 by each jig of the pair of the first jigs 10, 10, and positioned in the longitudinal direction S
of the fuselage 100 by each jig of the pair of the second jigs 20, 20.
In this state, the tip portion of the fixing bolt 139b of each of the fixing members 139 is butted against the lower sliding member 134 to fix the position, and the upper fixing screw 137 and the lower fixing screw 138 are tightened, thereby fixing the angle of the leg member 135.
It should be noted that the middle trunk section 110 can also be supported at a location other than the above-described first jigs 10, 10 and second jigs 20, 20 and, in such a case, only a height needs to be aligned with WO 2014/203660 Al 17 PCT/JP2014/062969 . .
the middle trunk section 110 at the location other than the first jigs 10, 10, and the second jigs 20, 20.
[0047]
Thereafter, the fuselage 100 is assembled by the attachment of predetermined components to the middle trunk section 110 thus positioned, such as the attachment of a main wing, and the attachment of a front trunk section and a rear trunk section that constitute the fuselage 100 to the front and back of the middle trunk section 110.
Thereafter, the fuselage 100 is assembled by the attachment of predetermined components to the middle trunk section 110 thus positioned, such as the attachment of a main wing, and the attachment of a front trunk section and a rear trunk section that constitute the fuselage 100 to the front and back of the middle trunk section 110.
[0048]
As described above, the leg member 135 of the support leg 120 mounted to the middle trunk section 110 is capable of swinging, making it possible to efficiently position the middle trunk section 110 with respect to the assembly reference position with high precision. At this time, the support leg 120 can be easily and quickly mounted to the middle trunk section 110 without adjusting the position using a shim plate, resin, or the like.
As described above, the leg member 135 of the support leg 120 mounted to the middle trunk section 110 is capable of swinging, making it possible to efficiently position the middle trunk section 110 with respect to the assembly reference position with high precision. At this time, the support leg 120 can be easily and quickly mounted to the middle trunk section 110 without adjusting the position using a shim plate, resin, or the like.
[0049]
Further, the middle trunk section 110 can be positioned in the longitudinal direction S and the horizontal direction W of the fuselage 100 by the first jig 10 by simply lowering the support member 17 after the middle trunk section 110 is placed, and positioned in the longitudinal direction S of the fuselage 100 by the second jig 20. Accordingly, the middle trunk section 110 is easily and reliably positioned, making it possible to perform work efficiently.
Moreover, in the first jig 10 and the second jig 20, the flow rate of the hydraulic oil pushed out by the hydraulic cylinder 13 is controlled by adjusting the opening of the flow rate adjustment valve 18v, making it possible to prevent the middle trunk section 110 from being impacted when the support member 17 descends after the middle trunk section 110 is placed.
Further, the middle trunk section 110 can be positioned in the longitudinal direction S and the horizontal direction W of the fuselage 100 by the first jig 10 by simply lowering the support member 17 after the middle trunk section 110 is placed, and positioned in the longitudinal direction S of the fuselage 100 by the second jig 20. Accordingly, the middle trunk section 110 is easily and reliably positioned, making it possible to perform work efficiently.
Moreover, in the first jig 10 and the second jig 20, the flow rate of the hydraulic oil pushed out by the hydraulic cylinder 13 is controlled by adjusting the opening of the flow rate adjustment valve 18v, making it possible to prevent the middle trunk section 110 from being impacted when the support member 17 descends after the middle trunk section 110 is placed.
[0050]
It should be noted that, in the above embodiment, the configuration of the supported portion 130 may be changed to a suitable configuration other than that described above as long as the leg member 135 is capable of swinging.
Further, the configuration of the support leg body 121 is not limited, and may be changed to a suitable configuration corresponding to the object to be supported that is to be mounted.
Furthermore, while the middle trunk section 110 is placed on the first jig and the second jig 20, the configuration of the jigs that support the middle trunk section 110 may be replaced with any other configuration.
WO 2014/203660 Al 18 Reference Signs List
It should be noted that, in the above embodiment, the configuration of the supported portion 130 may be changed to a suitable configuration other than that described above as long as the leg member 135 is capable of swinging.
Further, the configuration of the support leg body 121 is not limited, and may be changed to a suitable configuration corresponding to the object to be supported that is to be mounted.
Furthermore, while the middle trunk section 110 is placed on the first jig and the second jig 20, the configuration of the jigs that support the middle trunk section 110 may be replaced with any other configuration.
WO 2014/203660 Al 18 Reference Signs List
[0051]
First jig (jig) 11 Base 12 Casing 13 Hydraulic cylinder 14-Tapered guide 14a Tapered surface Receiving portion 15a Plate portion 15b Peripheral wall 16 Rolling element 17 Support member 18 Hydraulic pump 18v Flow rate adjustment valve 19 Supporting concave portion Second jig (jig) 22 Guide member 24 Tapered block 24b Block member Slanted surface 28 Fall prevention block 100 Fuselage 110 Middle trunk section (object to be supported) 111 Attaching portion 120, 120A, 120B Support leg 121 Support leg body 122 Base block 123 Attachment bracket 124 Baseplate 125 Rising wall 126 Upper plate 127 Attachment plate 128 Reinforcement plate 130 Supported portion 131 Upper sliding base (support member) 131a Concave support surface (sliding surface) 132 Lower sliding base (support member) WO 2014/203660 Al 19 132a Convex support surface (sliding surface) 133 Upper sliding member (sliding member) 133a Convex sliding surface (sliding surface) 133c Through-hole (second through-hole) 134 Lower sliding member (sliding member) 134a Concave sliding surface (sliding surface) 134c Through-hole (second through-hole) 134d Outer peripheral surface 135 Leg member 135e Spherical portion (positioning portion) 136 Through-hole (first through-hole) 137 Upper fixing screw 138 Lower fixing screw 139 Fixing member 139a Fixing block 139b Fixing bolt
First jig (jig) 11 Base 12 Casing 13 Hydraulic cylinder 14-Tapered guide 14a Tapered surface Receiving portion 15a Plate portion 15b Peripheral wall 16 Rolling element 17 Support member 18 Hydraulic pump 18v Flow rate adjustment valve 19 Supporting concave portion Second jig (jig) 22 Guide member 24 Tapered block 24b Block member Slanted surface 28 Fall prevention block 100 Fuselage 110 Middle trunk section (object to be supported) 111 Attaching portion 120, 120A, 120B Support leg 121 Support leg body 122 Base block 123 Attachment bracket 124 Baseplate 125 Rising wall 126 Upper plate 127 Attachment plate 128 Reinforcement plate 130 Supported portion 131 Upper sliding base (support member) 131a Concave support surface (sliding surface) 132 Lower sliding base (support member) WO 2014/203660 Al 19 132a Convex support surface (sliding surface) 133 Upper sliding member (sliding member) 133a Convex sliding surface (sliding surface) 133c Through-hole (second through-hole) 134 Lower sliding member (sliding member) 134a Concave sliding surface (sliding surface) 134c Through-hole (second through-hole) 134d Outer peripheral surface 135 Leg member 135e Spherical portion (positioning portion) 136 Through-hole (first through-hole) 137 Upper fixing screw 138 Lower fixing screw 139 Fixing member 139a Fixing block 139b Fixing bolt
Claims (4)
- [Claim 1]
A support leg for positioning an object to be supported on a jig, comprising:
a support leg body detachably attached to the object to be supported;
a leg member supported so as to be pivotable with respect to the support leg body on a spherical sliding surface; and a positioning portion provided to the leg member, the positioning portion being positioned on the jig. - [Claim 2]
The support leg according to claim 1, further comprising:
a support member provided to the support leg body, the support member including the sliding surface;
a sliding member facing the sliding surface, the sliding member including a spherical sliding surface that matches the sliding surface and being slidable on the sliding surface;
a first through-hole formed through the support member; and a second through-hole formed through the sliding member;
the leg member being provided so as to be fixed to the sliding member and to extend downward through the first through-hole and the second through-hole. - [Claim 3]
The support leg according to claim 2, further comprising a fixing member provided to an outer peripheral portion of the sliding member, the fixing member regulating the sliding of the sliding member by butting against the outer peripheral portion of the sliding member. - [Claim 4]
The support leg according to claim 2 or 3, wherein the leg member regulates a pivot angle by butting against the inner peripheral surface of the first through-hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-129894 | 2013-06-20 | ||
| JP2013129894A JP6199090B2 (en) | 2013-06-20 | 2013-06-20 | Support legs |
| PCT/JP2014/062969 WO2014203660A1 (en) | 2013-06-20 | 2014-05-15 | Support leg |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2912516A1 true CA2912516A1 (en) | 2014-12-24 |
| CA2912516C CA2912516C (en) | 2018-01-30 |
Family
ID=52104402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2912516A Active CA2912516C (en) | 2013-06-20 | 2014-05-15 | Support leg |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6199090B2 (en) |
| CN (1) | CN105229363B (en) |
| BR (1) | BR112015029140B1 (en) |
| CA (1) | CA2912516C (en) |
| WO (1) | WO2014203660A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021007643A1 (en) * | 2019-07-14 | 2021-01-21 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| US11332350B2 (en) | 2017-05-08 | 2022-05-17 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| US11479450B2 (en) | 2017-05-08 | 2022-10-25 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101764254B1 (en) | 2017-05-22 | 2017-08-04 | 지씨테크(주) | Universal chock liner for leveling |
| KR101780646B1 (en) | 2017-07-05 | 2017-09-21 | 지씨테크(주) | Adjusting liner for vibration absorption and leveling of machinery |
| US10988226B2 (en) * | 2017-10-16 | 2021-04-27 | LTA Research and Exploration, LLC | Methods and apparatus for constructing airships |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49133958A (en) * | 1973-04-27 | 1974-12-23 | ||
| FR2478575A1 (en) * | 1980-03-19 | 1981-09-25 | Snecma | DEVICE FOR PLACING A REACTOR IN AN AIRCRAFT CELL |
| JPS629097A (en) * | 1985-07-05 | 1987-01-17 | シャープ株式会社 | Variable adjusting mechanism |
| JPH052262Y2 (en) * | 1988-09-19 | 1993-01-20 | ||
| JPH0717916Y2 (en) * | 1990-04-07 | 1995-04-26 | 東京貿易株式会社 | Fixture |
| US8468674B2 (en) * | 2008-12-02 | 2013-06-25 | Airbus Operations Gmbh | Device and method for supplying structural components to an assembly zone |
-
2013
- 2013-06-20 JP JP2013129894A patent/JP6199090B2/en active Active
-
2014
- 2014-05-15 BR BR112015029140-6A patent/BR112015029140B1/en active IP Right Grant
- 2014-05-15 WO PCT/JP2014/062969 patent/WO2014203660A1/en active Application Filing
- 2014-05-15 CA CA2912516A patent/CA2912516C/en active Active
- 2014-05-15 CN CN201480028888.8A patent/CN105229363B/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11332350B2 (en) | 2017-05-08 | 2022-05-17 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| US11479450B2 (en) | 2017-05-08 | 2022-10-25 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| US11591193B2 (en) | 2017-05-08 | 2023-02-28 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| WO2021007643A1 (en) * | 2019-07-14 | 2021-01-21 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
| AU2019457339B2 (en) * | 2019-07-14 | 2024-01-18 | Nordic Minesteel Technologies Inc. | Telescoping jack for lifting large capacity trucks |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105229363B (en) | 2019-04-16 |
| WO2014203660A1 (en) | 2014-12-24 |
| CA2912516C (en) | 2018-01-30 |
| CN105229363A (en) | 2016-01-06 |
| JP6199090B2 (en) | 2017-09-20 |
| BR112015029140B1 (en) | 2021-08-24 |
| BR112015029140A2 (en) | 2017-07-25 |
| JP2015004404A (en) | 2015-01-08 |
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