Arrangement having a scale attached to a carrier

Patent metadata

Field	Value
Publication number	US-10953607-B2
Application number	US-201816168842-A
Country	US
Kind code	B2
Filing date	Oct 24, 2018
Priority date	Oct 26, 2017
Publication date	Mar 23, 2021
Grant date	Mar 23, 2021

Abstract

An arrangement includes a carrier and a scale disposed on the carrier in a spaced-apart relation therewith. The scale has a measuring graduation and is attached to the carrier via areally distributed and spaced-apart adhesive dots. The adhesive dots, which can be circular in shape, each include at least three spacers, which can be spheres, enclosed within an adhesive.

First claim

What is claimed is:

1. An arrangement comprising:
a carrier; and
a scale disposed on the carrier in a spaced-apart relation therewith, the scale having a measuring graduation and being attached to the carrier via areally distributed and spaced-apart adhesive dots,
wherein the adhesive dots each include at least three spacers enclosed within an adhesive.

2. The arrangement as recited in claim 1 , wherein the adhesive dots are spaced apart from one another by equal center-to-center distances such that the center-to-center distances between any three adjacent ones of the adhesive dots define an equilateral triangle.

3. The arrangement as recited in claim 1 , wherein the mass fraction of the spacers in one of the adhesive dots is from 1 to 10%.

4. The arrangement as recited in claim 1 , wherein the adhesive dots are each circular in shape.

5. The arrangement as recited in claim 4 , wherein all of the adhesive dots have the same diameter which is less than a thickness of the scale.

6. The arrangement as recited in claim 4 , wherein a diameter of the adhesive dots is from 1 mm to 3 mm.

7. The arrangement as recited in claim 1 , wherein the adhesive dots are spaced apart from one another by a center-to-center distance less than five times the thickness of the scale.

8. The arrangement as recited in claim 1 , wherein the adhesive dots are arranged opposite the measuring graduation of the scale, which defines a measuring range.

9. The arrangement as recited in claim 1 , wherein the adhesive dots are spaced apart from one another in such a way that the adhesive dots create clearance spaces in between themselves which provide channels leading to an outside.

10. The arrangement as recited in claim 1 , wherein materials of the carrier and of the scale have the same coefficient of thermal expansion.

11. The arrangement as recited in claim 10 , wherein the coefficient of expansion of the carrier and of the scale is less than 1.5×10 −6 K −1 .

12. The arrangement as recited in claim 11 , wherein the coefficient of expansion of the carrier and of the scale is less than 0.1×10 −6 K −1 .

13. The arrangement as recited in claim 1 , wherein the spacers are individual elements bound within the adhesive, wherein the individual elements rest on the carrier, and wherein the scale rests on the individual elements.

14. The arrangement as recited in claim 13 , wherein the individual elements are spheres.

15. The arrangement as recited in claim 13 , wherein a material of the individual elements is glass, ceramic or glass-ceramic material.

Assignees

• Heidenhain Gmbh Dr Johannes

Inventors

• Ettelt Dirk
• Lang Reiner
• Pucher Wolfgang
• Sigl Thomas

Classifications

• G01D5/34707 Primary

  Scales; Discs, e.g. fixation, fabrication, compensation · CPC title

• B29C66/8322

  Joining or pressing tools reciprocating along one axis · CPC title

• B29C66/72325

  Ceramics · CPC title

• B29C65/4845 Primary

  Radiation curing adhesives, e.g. UV light curing adhesives · CPC title