METHOD AND APPARATUS FOR INSTALLING A MEASURING TAPE

• US 20120305695A1
• Filed: 05/23/2012
• Published: 12/06/2012
• Est. Priority Date: 05/31/2011
• Status: Active Grant

• Current Assignee: Dr. Johannes Heidenhain GmbH
• Original Assignee: Dr. Johannes Heidenhain GmbH
• Inventors: Pucher, Wolfgang, Ahrendt, Dirk, Kühnhauser, Stefan
• Granted Patent: US 8,745,839 B2
• Time in Patent Office: Days
• US Class Current: 242/410
• CPC Class Codes: G01D 5/34707 Scales; Discs, e.g. fixation, fabrication, compensation
• CPC Class Codes: Y10T 29/49826 Assembling or joining
• CPC Class Codes: Y10T 29/49863 with prestressing of part
• CPC Class Codes: Y10T 29/49899 by multiple cooperating aligning means
• CPC Class Codes: Y10T 29/53 Means to assemble or disassemble
• CPC Class Codes: Y10T 29/53974 having means to permit support movement while work is thereon

Abstract

A method for installing a measuring tape on a circumferential surface of a holder. The method including wrapping the circumferential surface of the holder with the measuring tape and bracing the measuring tape such that the measuring tape extends spaced apart from the circumference of the holder. When the measuring tape extends spaced from the circumference of the holder due to the bracing, exerting a tensioning force on the measuring tape so that the measuring tape is held with low friction above the circumference, wherein the tensioning force is distributed at least nearly uniformly over the circumference. The method includes undoing the bracing of the measuring tape beginning at a fixation point at which a portion of the measuring tape is affixed to the circumferential surface. The method also includes applying the measuring tape to the circumferential surface of the holder while maintaining the tensioning force.

Claims

1. A method for installing a measuring tape on a circumferential surface of a holder, the method comprising:

wrapping said circumferential surface of said holder with said measuring tape;

bracing said measuring tape such that said measuring tape extends spaced apart from said circumference of said holder;

when said measuring tape extends spaced from said circumference of said holder due to said bracing, exerting a tensioning force on said measuring tape so that said measuring tape is held with low friction above said circumference, wherein said tensioning force is distributed at least nearly uniformly over said circumference;

undoing said bracing of said measuring tape beginning at a fixation point at which a portion of said measuring tape is affixed to said circumferential surface; and

applying said measuring tape to said circumferential surface of said holder while maintaining said tensioning force.

2. The method according to claim 1, wherein during said tensioning force being distributed nearly uniformly over said circumference, said measuring tape is kept spaced apart from said circumferential surface of said holder by braces spaced apart from one another in a circumferential direction.

3. The method according to claim 2, wherein during said tensioning force being distributed nearly uniformly over said circumference, said measuring tape rests on guide rollers of said braces.

4. The method according to claim 2, wherein said undoing of said bracing of said measuring tape is effected by displacing said braces in a slot that extends in a longitudinal direction in said holder.

5. An apparatus for installing a measuring tape on a circumferential surface of a holder, the apparatus comprising:

means for bracing said measuring tape so that said measuring tape extends spaced apart from said circumferential surface of said holder;

means for exerting a tensioning force on said measuring tape while said measuring tape extends spaced apart from said circumferential surface of said holder, and wherein said tensioning force is distributed at least nearly uniformly over a circumference of said holder; and

means for undoing said bracing of said measuring tape so that said measuring tape, beginning at a fixation point, is pressed against said circumferential surface of said holder while said tensioning force is being maintained.

6. The apparatus according to claim 5, wherein said means for bracing comprises a plurality of braces disposed spaced apart from one another in a circumferential direction, which braces are embodied for keeping said measuring tape spaced apart from said circumference of said holder while said tensioning force is being compensated for.

7. The apparatus according to claim 6, wherein each of said plurality of braces comprises a rotatably supported guide roller on which said measuring tape rests.

8. The apparatus according to claim 6, wherein said plurality of braces are shiftable in said circumferential direction independently of one another.

9. The apparatus according to claim 7, wherein said plurality of braces are shiftable in said circumferential direction independently of one another.

10. The apparatus according to claim 6, wherein said plurality of braces are coupled to one another by a connection body and are shiftable jointly in said circumferential direction.

11. The apparatus according to claim 7, wherein said plurality of braces are coupled to one another by a connection body and are shiftable jointly in said circumferential direction.

12. The apparatus according to claim 6, wherein each of said plurality of braces comprises casters that are guided shiftably in said circumferential direction on said holder.

13. The apparatus according to claim 6, wherein one of said plurality of braces comprises a magnet.

14. The apparatus according to claim 6, wherein one of said plurality of braces has a structure for varying a spacing between said plurality of braces and said measuring tape.

15. A structural unit, comprising:

a measuring tape to be installed on a circumferential surface of a holder; and

an apparatus for installing said measuring tape, said apparatus comprising;

means for bracing said measuring tape so that said measuring tape extends spaced apart from said circumferential surface of said holder;

means for exerting a tensioning force on said measuring tape while said measuring tape extends spaced apart from said circumferential surface of said holder, and wherein said tensioning force is distributed at least nearly uniformly over a circumference of said holder; and

means for undoing said bracing of said measuring tape so that said measuring tape, beginning at a fixation point, is pressed against said circumferential surface of said holder while said tensioning force is being maintained.

16. The structural unit according to claim 15, wherein said means for bracing comprises a plurality of braces disposed spaced apart from one another in a circumferential direction, which braces are embodied for keeping said measuring tape spaced apart from said circumference of said holder while said tensioning force is being compensated for.

17. The structural unit according to claim 16, wherein each of said plurality of braces comprises a rotatably supported guide roller on which said measuring tape rests.

18. The structural unit according to claim 16, wherein said plurality of braces are shiftable in said circumferential direction independently of one another.

19. The structural unit according to claim 17, wherein said plurality of braces are shiftable in said circumferential direction independently of one another.

20. The structural unit according to claim 16, wherein said plurality of braces are coupled to one another by a connection body and are shiftable jointly in said circumferential direction.

21. The structural unit according to claim 17, wherein said plurality of braces are coupled to one another by a connection body and are shiftable jointly in said circumferential direction.

22. The structural unit according to claim 16, wherein each of said plurality of braces comprises casters that are guided shiftably in said circumferential direction on said holder.

23. The structural unit according to claim 16, wherein one of said plurality of braces comprises a magnet.

24. The structural unit according to claim 16, wherein one of said plurality of braces has a structure for varying a spacing between said plurality of braces and said measuring tape.