Arrangement for accommodating a scale in a positive engagement

• US 6,105,271 A
• Filed: 03/19/1997
• Issued: 08/22/2000
• Est. Priority Date: 07/20/1995
• Status: Expired due to Fees

• Current Assignee: Dr. Johannes Heidenhain GmbH
• Original Assignee: Dr Johannes Heidenhain GmbH
• Inventors: Freitag, Hans-Joachim, Boege, Ludwig
• Primary Examiner(s): Hirshfeld, Andrew H.
• Assistant Examiner(s): SMITH, RICHARD A
• Application Number:
  US08/809,032
• Time in Patent Office: 1,252 Days
• Field of Search: 33/706, 33/732, 33/733, 33/759, 33/707, 33/708, 33/710, 33/703, 33/704, 33/755, 33/771, 33/561.2, 33/555.4
• US Class Current: 33/706
• CPC Class Codes: G01B 3/002 Details
• CPC Class Codes: G01D 5/34761 Protection devices, e.g. caps; Blowing devices

Abstract

An arrangement for accommodating a scale (2) of a length measuring device in a positive-locking engagement has a profile base (1) and lateral profile legs (4, 5) which are connected with the profile base so as to project away from it. A scale (2) is arranged between the profile legs (4; 5). The profile legs (4; 5) are made of elastic material and the profile base (1) is made of a longitudinally stable, bendable material. The profile legs (4; 5) can contain elastic sealing slats.

Claims

1. A length measuring device, comprising a scale;

a profile base for supporting the scale;

lateral profile legs connected with the profile base and projecting away therefrom for accommodating the scale on the profile base; and

a space,

wherein the profile base is formed of a longitudinally stable and bendable metal strip;

wherein the lateral profile legs are made of an elastic material;

wherein the scale and the space are arranged between the profile legs;

the space having a depth comprising a majority portion of a height of the lateral profile legs from the profile base; and

wherein both the metal strip and the elastic material have a stiffness enabling the profile legs and the profile base to be wound up.

2. The length measuring device according to claim 1, wherein both the metal strip and the elastic material have a stiffness enabling said profile legs and said profile base to be wound upon a base body with a radius of 20-40 cm.

3. The length measuring device according to claim 1, wherein the scale is a graduated steel rule.

4. The length measuring device according to claim 1, wherein the scale is mounted on the profile base by an adhesive layer.

5. The length measuring device according to claim 1, wherein the scale is rested on the profile base with an intermediate oil film.

6. The length measuring device according to claim 1, wherein said profile legs are connected to said profile base by self-adhesive foil.

7. The length measuring device according to claim 1, wherein said profile legs have a holding means for holding said scale in a positive engagement on said profile base wherein said holding means are folds.

8. The length measuring device according to claim 1, wherein said profile legs have a holding means for holding said scale in a positive engagement on said profile base, wherein said holding means are recesses formed in said elastic profile legs.

9. The length measuring device according to claim 1, wherein each said profile legs contains an elastic sealing slat for protecting said scale and a sensor of a sensing unit from environmental influences.

10. The length measuring device according to claim 9, wherein each said profile leg and said corresponding sealing slat are formed from one part.

11. The length measuring device according to claim 1, wherein said profile legs are connected with said profile base by a self-adhesive foil.

12. The length measuring device according to claim 1, wherein the scale is inserted, in a longitudinal direction, in recesses formed by respective folds of the profile legs.

13. In a length measuring device including a scale;

a profile base for supporting the scale;

lateral profile legs connected with the profile base and projecting away therefrom for accommodating the scale on the profile base; and

a space, wherein the scale and the space are arranged between the profile legs, the space having a depth comprising a majority portion of a height of the lateral profile legs from the profile base, the improvement comprising forming the profile legs of an elastic material and forming the profile base of a longitudinally stable and bendable metal strip, both the elastic material and the metal strip having a stiffness enabling the profile legs and the profile base to be wound upon a base body with a radius of 20-40 cm, and the profile legs forming laterally arranged means for holding the scale in a positive locking engagement with the profile base.

14. The improvement according to claim 13, wherein said scale is a graduated steel rule.

15. The improvement according to claim 13, wherein said scale is mounted on said profile base by an adhesive layer.

16. The improvement according to claim 13, wherein said scale is rested on said profile base with an intermediate oil firm.

17. An arrangement, comprising a machine component having a plane receiving surface;

and a length measuring device mounted on the receiving surface of the machine component, the length measuring device including a scale;

a profile base for supporting the scale;

lateral profile legs connected with the profile base and projecting away therefrom for accommodating the scale on the profile base; and

a space, wherein the profile base is formed of a longitudinally stable and bendable metal strip;

wherein the lateral profile legs are made of an elastic material;

wherein the scale and the space are arranged between the profile legs;

wherein the space has a depth comprising a majority portion of a height of the lateral profile legs from the profile base; and

wherein both the metal strip and the elastic material have a stiffness enabling the profile legs and the profile base to be wound up.

18. An arrangement according to claim 17, wherein the machine component has recesses extending in a longitudinal direction for receiving the profile base, the length measuring device being unrolled before insertion of the profile base in the recesses.