Hygiene-compliant display and control device
View Patent ↗Machines and systems for chemical, foodstuffs and pharmaceuticals industry are subject to particularly demanding requirements for hygiene. In particular, equipment used in such machines, must avoid any gaps, in which dirt, bacteria or germs could settle. To avoid this, a hygiene-compliant display and control device having a front plate is proposed, having a peripheral groove, which is open on the outer peripheral surface of the front plate, on the outer edge of the front plate, and a sealing element fitted in the peripheral groove. The outer peripheral surface of the sealing element is arranged flush with the outer peripheral surface of the front plate, and a number of clamping arrangements with a pressing element are provided on the display and control device distributed around the periphery. One axial end of the pressing element engages with a fixing frame, which rests on the mounting plate, or with the mounting plate.
1. A hygiene-compliant display and control device comprising:
a front plate having an outer peripheral surface on an edge of the front plate and a peripheral groove provided on and open to the outer peripheral surface;
a body, extending from the front plate;
a mounting plate;
a sealing element arranged in the peripheral groove and being positionable between the edge of the front plate and the mounting plate, wherein, in a particular state, an outer peripheral surface of the sealing element is arranged flush with the outer peripheral surface of the front plate;
a plurality of clamping units being distributed around a periphery of the body and being structured and arranged to face the edge of the front plate and to create, with the edge of the front plate, a clamping connection, each of the clamping units comprising a pressing element;
a fixing frame contacts and rests against the mounting plate and engages with axial ends of the pressing elements; and
the mounting plate contacts the fixing frame and the sealing element of the front plate.
2. The hygiene-compliant display and control device according to claim 1 , wherein the sealing element comprises a first sealing body structured and arranged to form the outer peripheral surface of the sealing element.
3. The hygiene-compliant display and control device according to claim 2 , the sealing element further comprising a further sealing body structured and arranged, relative to the peripheral edge of the sealing element, inside the first sealing body.
4. The hygiene-compliant display and control device according to claim 3 , wherein at least one of the first sealing body and the further sealing body having a height greater than a depth of the peripheral groove.
5. The hygiene-compliant display and control device according to claim 1 , at least one depression arranged in a base of the peripheral groove, and the sealing element having at least one projection structured and arranged to engage the at least one depression.
6. The hygiene-compliant display and control device according to claim 1 , wherein the sealing element comprises at least one sealing body structured and arranged to form the outer peripheral surface of the sealing element.
7. The hygiene-compliant display and control device according to claim 6 , wherein the at least one sealing body comprises a sealing surface structured and arranged toward the mounting plate.
8. The hygiene-compliant display and control device according to claim 6 , wherein the at least one sealing body comprises at least a first sealing body and a second sealing body, the first sealing body forming the outer peripheral surface of the sealing element and the second sealing body being structured and arranged, relative to the peripheral edge of the sealing element, inside the first sealing body.
9. The hygiene-compliant display and control device according to claim 8 , wherein the at least a first sealing body and a second sealing body each comprise a sealing surface structured and arranged extend toward the mounting plate.
10. The hygiene-compliant display and control device according to claim 9 , wherein the peripheral groove has a base structured and arranged at a depth to face the mounting plate, and at least one of the first sealing body and the second sealing body have a height greater than the depth of base of the peripheral groove.
11. The hygiene-compliant display and control device according to claim 10 , further comprising at least one depression arranged in the base of the peripheral groove, and the sealing element further comprising at least one projection structured and arranged to engage the at least one depression.
12. The hygiene-compliant display and control device according to claim 6 , wherein the at least one sealing body comprises a sealing surface structured and arranged to extend toward the mounting plate.
13. The hygiene-compliant display and control device according to claim 12 , wherein the peripheral groove has a base structured and arranged at a depth to face the mounting plate, and the at least one sealing body has a height greater than the depth of base of the peripheral groove.
14. The hygiene-compliant display and control device according to claim 13 , further comprising at least one depression arranged in the base of the peripheral groove, and the sealing element further comprising at least one projection structured and arranged to engage the at least one depression.
15. The hygiene-compliant display and control device according to claim 1 , further comprising a film provided on a surface of the front plate structured and arranged to face away from the mounting plate.