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US 12,520,848 B2Granted
Kneading or mixing machine
AssigneeVarimixer A/S
InventorsMorten Højbjerre, Jesper Holmegaard Olsen
Life of this patent
Estimating the term…
Abstract
A kneading or mixing machine including a housing with opposite side walls, a motor in the housing for driving a kneading or mixing tool. A safety shield mounted to bearings for turning about an axis (A), the safety shield adapted to at least partly shield the tool when the safety shield is turned to a shielding position, the safety shield including a pair of arms. Each arm having a head at a free end thereof, a central portion of each bearing receiving the head to allow for said turning, and the central portion of each bearing communicating with an entry slit configured for insertion of the head into the central portion in a direction transverse to the axis (A).
Claims14
A kneading or mixing machine comprising:
- a housing with opposite side walls;
- a motor in said housing for driving a kneading or mixing tool;
- a safety shield mounted to bearings for turning about an axis (A), wherein said safety shield is adapted to at least partly shield said kneading or mixing tool when said safety shield is turned to a shielding position, and wherein said safety shield comprising a pair of arms, wherein each of said pair of arms comprising a corresponding head at a free end thereof;
- and
- a central portion of each of said bearings receiving a corresponding one of said heads to allow for said turning, wherein said central portion of each of said bearings communicating with a corresponding entry slit configured for insertion of said corresponding head into said central portion of a corresponding one of said bearings in a direction transverse to said axis (A) along a path from an entry of said corresponding entry slit to an end wall of said central portion of said corresponding one of said bearings, wherein when said corresponding head is inserted into said central portion of said corresponding one of said bearings said path is unimpeded from said entry to said corresponding head;
- a magnet or a first magnetizable body mounted to said bearings and magnetically coupled with a second magnetizable body or magnet of said corresponding head;
- a safety switch located at one of said side walls and being operable between a passive state in which said motor is allowed to operate and an activated state in which said motor is prevented from operation, said safety switch being configured to switch from said passive state to said activated state when said safety shield is away from said shielding position;
- and
- a magnet for magnetic activation of said safety switch being mounted to one of said pair of arms distal from said free end, said safety switch mounted at a position coincident with said one of said pair of arms when said safety shield is in said shielding position.
6 more elements
A kneading or mixing machine comprising:
- a housing;
- a motor in said housing for driving a kneading or mixing tool;
- a safety shield mounted to said housing for turning about an axis (A) and being adapted to at least partly shield said kneading or mixing tool when said safety shield is turned to a shielding position, wherein said safety shield comprises a pair of arms;
- a magnetically activatable safety switch operable between a first state in which said motor is allowed to operate and a second state in which said motor is prevented from operation, said safety switch being arranged to switch from said first state to said second state when said safety shield is away from said shielding position;
- and
- a magnet mounted to one of said pair of arms for magnetic activation of said safety switch, wherein said magnet is mounted distally from a free end of said one of said pair of arms, and wherein said safety switch is arranged at a position coincident with said one of said pair of arms when said safety shield is in said shielding position;
- wherein each of said pair of arms comprises a head at said free end thereof;
- wherein the kneading or mixing machine further comprises bearings to which said safety shield is mounted, wherein a central portion of each of said bearings receiving a corresponding one of said heads to allow for said turning, and wherein said central portion of each of said bearings communicating with a corresponding entry slit configured for insertion of said corresponding one of said heads into said central portion in a direction transverse to said axis (A) along a path from an entry of said corresponding entry slit to an end wall of said central portion of said corresponding one of said bearings, wherein when said corresponding head is inserted into said central portion of said corresponding one of said bearings said path is unimpeded from said entry to said corresponding head;
- and
- a magnet or a first magnetizable body mounted to said bearings and magnetically coupled with a second magnetizable body or magnet of said corresponding head.
7 more elements
A safety shield adapted to at least partly shield an operator of a mixing/kneading machine from a mixing/kneading tool when said safety shield is in a shielding position with said mixing/kneading tool working in a bowl, said safety shield comprising:
- a molded plastic material structure including an opening (O) for introducing a substance into bowl during said mixing/kneading by said mixing/kneading tool;
- a pair of arms attached to said molded plastic material structure, each of said pair of arms comprises a free end with a head that extends above said molded plastic material structure and said opening, wherein one of said pair of arms comprises:
- a first magnetized body or a first magnet at said free end of said head of said one of said pair of arms;
- and
- a second magnetized body or a second magnet that is distal from said free end of said head of said one of said pair of arms;
- and
- a removable element mounted to a portion of said plastic material structure that defines at least partially said opening (O) for covering a portion of said plastic material structure, said removable element being of a flexible elastomeric material.
4 more elements
Dependencies are inferred from the claim text.