JP2004256055A - Eccentric spacer having sphere core - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an eccentric spacer which can easily be applied to a bolt having a positional deviation or an inclined implanted bolt relative to the base, and has a smoothly mountable sphere core. <P>SOLUTION: The eccentric spacer has the sphere core, and is equipped with a first eccentric through-hole 2 receiving the bolt implanted to the base, a cylindrical lower part block 1 having a half spherical recessed part 3 communicating to the upper part of the first eccentric through-hole 2, the cylindrical upper block 5 having the first eccentric through-hole 2' receiving the bolt and a half spherical recessed part 3' communicating to the lower part of the first eccentric through-hole 2', and the sphere core 8 having a second eccentric through-hole 9 receiving the bolt. An assembly body having the sphere core 8 in the spherical space part formed at the inside combined the lower part block 1 with the upper part block 5 is stored into a fixed body having the through-hole. The bolt is applied and penetrated to the second eccentric through-hole 9 of the sphere core 8, and fastened at the upper surface of the fixed body to fix the fixed body at the prescribed position relative to the base. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an eccentric spacer having a spherical core used for mounting a side wall of a guideway of a magnetic levitation railway.
[0002]
[Prior art]
Conventionally, when attaching a fixed body to a bolt that is to be planted on a foundation, it is necessary to correctly install the fixed body at a predetermined position on the foundation. Since it is difficult to fix the object, a spacer is required to enable the object to be adjusted and attached so as to cope with the deviation of the position of the bolt at the time of fixing the object.
[0003]
In view of such a situation, the present inventor has already proposed an eccentric spacer (Japanese Patent Application No. 2002-024561).
[0004]
[Problems to be solved by the invention]
By the way, fixing bolts such as guideway side walls of a magnetic levitation railway are not always perpendicular to the foundation when planted in concrete as a foundation.
[0005]
However, in the above eccentric spacer, the core has a cylindrical shape, and the through hole penetrating the core has a cylindrical shape, so the bolts implanted in the foundation are inclined with respect to the foundation. In such a case, there is a problem that the bolt cannot be penetrated through the cylindrical through hole.
[0006]
In view of the above circumstances, the present invention provides an eccentric spacer having a spherical core that can be easily adapted to a bolt that is misaligned with respect to a foundation or that is implanted with an inclination, and that can be easily mounted. The purpose is to provide.
[0007]
[Means for Solving the Problems]
The present invention, in order to achieve the above object,
[1] An eccentric spacer having a spherical core, comprising: a first eccentric through hole for receiving a bolt implanted in a foundation; and a hemispherical recess communicating with an upper portion of the first eccentric through hole. A cylindrical lower block having a first eccentric through-hole for receiving the bolt and a hemispherical recess communicating with a lower portion of the first eccentric through-hole; and receiving the bolt. A spherical core having a second eccentric through-hole; and a through-hole having an assembly having the spherical core in a spherical space formed inside a combination of the lower block and the upper block. The bolt is accommodated in the body to be fixed, and the bolt is fitted through the second eccentric through-hole of the spherical core to penetrate, and fixes the body to the predetermined position with respect to the foundation.
[0008]
[2] The eccentric spacer having the spherical core according to [1], further comprising a plate for preventing the lower block and the upper block from rising.
[0009]
[3] The eccentric spacer having the spherical core according to the above [1] or [2], further comprising a padding to be loaded into a gap between the lower block and the upper block and the through hole of the fixed body. .
[0010]
[4] The eccentric spacer having a spherical core according to [1], wherein the foundation is a roadbed and the fixed body is a side wall of a guideway, and is used for a magnetic levitation railway.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail.
[0012]
FIG. 1 is a vertical sectional view of an eccentric spacer having a spherical core showing an embodiment of the present invention, FIG. 2 is a horizontal sectional view of an eccentric spacer having the spherical core, FIG. 3 is a perspective view thereof, and FIG. FIG. 4 is an exploded perspective view showing an attached state of a fixed body to a foundation using an eccentric spacer having a spherical core according to an embodiment of the present invention.
[0013]
In these figures, reference numeral 1 denotes a cylindrical lower block. The lower block 1 has a first eccentric through hole 2 for receiving a bolt 21 planted on a foundation 20, and a first eccentric through hole 2 2 has a hemispherical recess 3 for mounting a spherical core 8 thereon, and a female screw hole 4 for screwing. Reference numeral 5 denotes a cylindrical upper block. The upper block 5 has a first eccentric through hole 2 'for receiving a bolt 21 planted on a foundation 20, and a lower portion of the first eccentric through hole 2'. It has a hemispherical recess 3 ′ communicating with the upper part of the spherical core 8 and a screw insertion hole 6.
[0014]
On the other hand, the spherical core 8 has a second eccentric through hole 9 formed therein, and has a structure in which a bolt 21 implanted in a foundation 20 penetrates.
[0015]
Then, the spherical core 8 is placed in the hemispherical recess 3 of the lower block 1 and the upper block 5 is placed on the spherical core 8 so that the upper part of the spherical core 8 can be accommodated in the hemispherical recess 3 ′ of the upper block 5. . That is, the lower block 1 and the upper block 5 are screwed together with the screw rods 7 so that the spherical core 8 is formed in the spherical space formed inside the combination of the upper block 5 and the lower block 1. . Reference numeral 10 denotes the inner peripheral surfaces of the first eccentric through holes 2 and 2 'of the lower block 1 and the upper block 5 thus combined, and 11 denotes the outer peripheral surfaces of the lower block 1 and the upper block 5. I have.
[0016]
Incidentally, indicating example dimensions of the assembly (see FIG. 1), the diameter phi ₁ of the first eccentric through hole 2, 2 '64 mm, the diameter phi ₂ of the spherical core 8 80 mm, a second polarization The diameter φ ₃ of the core through hole 9 is 35.5 mm, the height L ₁ of the lower block 1 and the upper block 5 is 50 mm, respectively, and the width L _{2 of the} thinnest portion of the lower block 1 and the upper block 5 except for the hemispherical concave portions. Is 15 mm, the width L ₃ of the thickest part is 42 mm, respectively, and the outer diameter φ ₄ of the lower block 1 and the upper block 5 is 121 mm.
[0017]
In FIG. 2, 12 the center of the sphere core 8, 13 is the center of the lower block 1 and the upper block 5, the shift amount _{L 4} of their centers 12 and 13 13.5 mm, this dimension example 14 a range in eccentric spacers may be receiving a bolt 21 to be implanted to the base 20, the diameter phi ₅ of the range is 89 mm.
[0018]
Next, application of the eccentric spacer having a spherical core will be described with reference to FIG.
[0019]
As described above, the eccentric spacer assembled so that the spherical core 8 is accommodated by the lower block 1 and the upper block 5 is inserted into the through hole 31 (having a diameter φ ₇₎ formed at a predetermined position of the fixed body 30. Is mounted on the base 20 so as to fit with the bolt 21 implanted in the foundation 20. That is, at this time, the upper block 5 and the lower block 5 are fixed so that the bolt 21 passes through the second eccentric through hole 9 of the spherical core 8 in order to fix the fixed body 30 at the determined dotted line position of the foundation 20. An eccentric spacer in which the positions of the hemispherical concave portions 3 and 3 'of the block 1 and the positions and angles of the second eccentric through holes 9 of the spherical core 8 are adjusted and combined is disposed, and a thick washer 24 is placed thereon. , The tip of the bolt 21 is fastened by the nut 25.
[0020]
With this configuration, even if the bolt 21 implanted in the foundation 20 is slightly inclined, the spherical core 8 is rotated so that the second eccentric through hole 9 corresponds to the inclination of the bolt 21. The fixed body 30 can be easily fitted, and the fixed body 30 can be smoothly attached to a correct position of the foundation 20.
[0021]
Further, in the above embodiment, a padding (not shown) is loaded in the gap between the lower block 1 and the upper block 5 and the through-hole 31 of the fixed body 30, so that a more secure fixing can be performed. .
[0022]
FIG. 5 is a view showing an example in which the above-described eccentric spacer having a spherical core is applied to the construction of a guideway of a magnetic levitation railway, and FIG. 6 is an enlarged sectional view of a portion A thereof.
[0023]
In this figure, reference numeral 40 denotes a guideway, in which a bolt 42 is implanted in a roadbed 41, and the above-mentioned spherical core is inserted into a through hole 46 of a mounting portion 45 of a leg portion of a guideway side wall 44. The guideway side wall 44 as an object to be fixed is fixed to the roadbed 41 by penetrating and fixing the bolt 42 through the eccentric spacer 47 having the eccentric spacer 47.
[0024]
That is, as shown in FIGS. 1 to 4, the eccentric spacer 47 assembled so that the spherical core 8 is accommodated by the lower block 1 and the upper block 5 is attached to the guideway side wall 44 as a fixed body. through holes 46 are formed at a predetermined position of the mounting portion 45 of the leg portion (the diameter phi ₇ is 121mm) mounted on, arranged to fit the bolt 42 to be implanted in the roadbed 41 as a basis. That is, as shown in FIG. 6, the eccentric spacer 47 having the spherical core is arranged so that the bolt 42 passes through the second eccentric through hole 9 of the spherical core 8, and the floating prevention plate 51 (for example, After arranging (diameter φ ₆ 118 mm), the distal end of the bolt 42 is fastened thereon with a nut 55 via a thick washer 52 and spring washers 53 and 54.
[0025]
Although the present embodiment describes the application to the inclination and displacement of the bolts implanted in the roadbed, the same effect is obtained when the female screws are embedded in the roadbed and bolted from above instead of nuts. be able to.
[0026]
It goes without saying that the eccentric spacer having a spherical core according to the present invention has a wide range of applications including the application to the construction of a guideway of a magnetically levitated railway.
[0027]
Further, the present invention is not limited to the above embodiments, and various modifications are possible based on the spirit of the present invention, and they are not excluded from the scope of the present invention.
[0028]
【The invention's effect】
As described in detail above, according to the present invention, when the fixed body is attached to the foundation, if the bolts provided on the foundation are misaligned or inclined even within a certain range, they can be easily fitted. And installation can be performed smoothly.
[Brief description of the drawings]
FIG. 1 is a vertical sectional view of an eccentric spacer having a spherical core according to an embodiment of the present invention.
FIG. 2 is a horizontal sectional view of an eccentric spacer having a spherical core according to an embodiment of the present invention.
FIG. 3 is a perspective view of an eccentric spacer having a spherical core according to the embodiment of the present invention.
FIG. 4 is an exploded perspective view showing an attached state of a fixed body to a foundation using an eccentric spacer having a spherical core according to an embodiment of the present invention.
FIG. 5 is a diagram showing an example in which an eccentric spacer having a spherical core according to an embodiment of the present invention is applied to construction of a guideway of a magnetic levitation railway.
FIG. 6 is an enlarged sectional view of a portion A in FIG. 5;
[Explanation of symbols]
Reference Signs List 1 lower block 2, 2 'first eccentric through hole 3, 3' hemispherical recess 4 female screw hole 5 for screwing upper block 6 screw insertion hole 7 screw rod 8 spherical core 9 second eccentric through hole 10 Inner peripheral surface 11 of one eccentric through hole 11 Outer peripheral surface of lower block and upper block 12 Center of spherical core 13 Center of lower block and upper block 14 Existence range of bolts that eccentric spacer can accept 20 Bases 21 and 42 Bolt 24 Washer 25, 55 Nut 30 Fixed body 31, 46 Through hole 40 Guide way 41 Roadbed 44 Guide way side wall 45 Attachment part 47 of leg portion of guide way side wall 47 Eccentric spacer 51 having spherical core 51 Lifting prevention plate 52 Thick Washers 53, 54 Spring washers

Claims (4)

(A) a cylindrical lower block having a first eccentric through-hole for receiving a bolt implanted in a foundation and a hemispherical recess communicating with an upper part of the first eccentric through-hole;
(B) a cylindrical upper block having a first eccentric through hole for receiving the bolt and a hemispherical recess communicating with a lower portion of the first eccentric through hole;
(C) a spherical core having a second eccentric through hole for receiving the bolt,
(D) housing the assembly having the spherical core in a spherical space formed inside the combination of the lower block and the upper block in a fixed body having a through hole;
(E) An eccentric spacer having a spherical core for fixing the fixed body at a predetermined position with respect to the foundation by penetrating the bolt so as to fit in the second eccentric through hole of the spherical core. 2. The eccentric spacer having a spherical core according to claim 1, wherein the spherical core includes a lifting prevention plate for the lower block and the upper block. The eccentric spacer having a spherical core according to claim 1 or 2, wherein the spherical core includes a filling material to be loaded into a gap between the lower block and the upper block and a through hole of the fixed body. Spacer. 2. The eccentric spacer having a spherical core according to claim 1, wherein the foundation is a roadbed, and the fixed body is a side wall of a guideway and has a spherical core used in a magnetic levitation railway.

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