NZ761580B2

NZ761580B2 - A cartridge configured to form a part of a teatcup, and a teatcup

Info

Publication number: NZ761580B2
Application number: NZ761580A
Authority: NZ
Inventors: Anna Andersson
Original assignee: Delaval Holding Ab
Filing date: 2018-10-23
Publication date: 2026-02-03

Abstract

cartridge configured to be received in a receiving space of a connector, which comprises a lower base member and a shell that extends from the lower base member and surrounds the receiving space of the connector, to form a teatcup. The teatcup is configured to be attached to the teat of an animal to be milked. The cartridge comprises an elongated sleeve (8), having an upper end section (8') and a lower end section (8"), and a barrel (9) pre-mounted in the elongated sleeve (8) and having an inner space (10) for receiving the teat. A pulsation chamber (11 ) is formed between the elongated sleeve and the barrel. A head member (12) provided at the upper end section comprises a lip (13) surrounding an opening (14) to the inner space. The elongated sleeve has a flange (20) extending outwardly at the upper end section. The head member comprises a plurality of locking members (19) each gripping the flange. Each of the locking members extends towards the lower end section and beyond the flange, and comprises an inwardly extending portion which comprises an engagement surface turned away from the lower end section.

Claims

WHAT WE CLAIM IS:

1. A cartridge configured to be received in a receiving space of a connector, which comprises a lower base member and a shell that extends from the lower base member and surrounds the receiving space of the connector, to form a teatcup configured to be attached to the teat of an animal to be milked, n the cartridge comprises an elongated sleeve extending in parallel with a longitudinal central axis and having an upper end section and a lower end n, a barrel pre-mounted in the elongated sleeve and having an inner space for receiving said teat, a pulsation chamber formed between an inner surface of the ted sleeve and an outer surface of the barrel, and a head member comprising a lip surrounding an g to the inner space, wherein the head member is provided at the upper end section, wherein the elongated sleeve has a flange extending outwardly at the upper end section, the head member comprises a ity of locking members each gripping the flange, each of the locking members extends towards the lower end section and beyond the flange, and each of the locking members ses an inwardly ing portion which comprises an engagement e turned away from the lower end section.

2. The cartridge according to claim 1, wherein the flange comprises a lower surface turned towards the lower end section, and n each of the engagement surfaces abuts the lower surface.

3. The cartridge according to any one of the preceding claims, wherein the head member is attached to the barrel.

4. The cartridge according to claim 3, wherein the head member comprises a lip element, comprising the lip, and a ring member attached to the lip element and comprising the locking members and an engagement element, and wherein the engagement element attaches the head member to the .

5. The cartridge according to any one of the preceding claims, wherein the flange is annular and comprises a plurality of recesses and wherein each of the locking s is received in a respective one of the recesses.

6. The cartridge according to claim 5, wherein the flange has an upper surface facing away from the lower end section and wherein each of the es extends through the upper surface and in parallel with the longitudinal l axis.

7. The cartridge according to any one of claims 5 and 6, wherein each of the recesses has a tapering shape towards the lower end section, and wherein each of the locking s has a corresponding tapering shape towards the lower end section.

8. A teatcup configured to be attached to the teat of an animal to be milked, the teatcup sing a connector which comprises a lower base member and a shell that s from the lower base member and surrounds a receiving space of the connector, and a cartridge according to any one of claims 1 to 7.

9. The teatcup according to claim 8, wherein the locking members are located inside and adjacent to an inner surface of the shell when the cartridge is received in the receiving space of the connector.

10. The teatcup according to any one of claims 8 and 9, wherein a plurality of coupling members are provided on an outer surface of the elongated sleeve and a plurality of complementary ng members are provided on an inner surface of the connector, and wherein each of the coupling s form a bayonet coupling with a respective one of the complementary coupling members to permit locking of the cartridge in the connector.

11. The teatcup according to claim 10, wherein a passage is ed between each of the coupling members to permit a respective one of the complementary coupling members to pass when the cartridge is uced into the ing space of the connector.

12. The teatcup according to any one of claims 10 and 11, wherein each of the coupling members comprises an upper surface turned away from the lower end section to permit engagement by a lower e of a respective one of the complementary coupling members.

13. The teatcup according to claim 12, wherein at least one of the coupling members and the complementary coupling members comprises a stop surface to provide a final rotary on.

14. The teatcup according to any of claims 12 and 13, wherein at least one of the coupling members and the complementary coupling members comprises a sloping ramp to permit sliding of the complementary coupling member onto the upper surface.

15. A cartridge ing to claim 1, substantially as herein described or exemplified.

16. A teatcup according to claim 8, substantially as herein described or exemplified.