Chassis for a cable or pipeline trolley
The invention relates to a chassis ( 1 ) for a cable or pipeline trolley ( 2 ), for traveling along a carrier rail, the chassis including at least one pair of carrier rollers ( 3 ) having a horizontal axis of rotation and at least one pair of guide rollers ( 4 ) having a vertical axis of rotation. The disadvantage of known chassis of this type is that they jolt at uneven sections of the carrier rail and a significant supply of replacement parts is required for repairs. The aim of the invention is to develop a chassis with improved driving characteristics, whilst at the same time reducing production and inventory costs. To achieve this, the carrier rollers ( 3 ) and guide rollers ( 4 ) are essentially arranged symmetrically to a vertical axis.
1. A chassis ( 1 ) for a cable or pipeline trolley ( 2 ) for movement along a carrier rail in a direction of movement, the chassis ( 1 ) having a central vertical axis ( 5 ) and comprising:
at least one pair of carrier rollers ( 3 ), each carrier roller ( 3 ) having a separate horizontal axis of rotation; and
at least one pair of guide rollers ( 4 ) having a vertical axis of rotation perpendicular to each horizontal axis of rotation, the carrier rollers ( 3 ) and the guide rollers ( 4 ) arranged in an arrangement such that one of the pair of carrier rollers ( 3 ) is located in front of with respect to the direction of movement one of the pair of guide rollers ( 4 ) on a first side of the carrier rail and the other carrier roller ( 3 ) is located behind with respect to the direction of movement the other guide roller ( 4 ) on a second side of the carrier rail, the carrier roller ( 3 ) on the second side of the carrier rail opposing the guide roller ( 4 ) on the first side of the carrier rail and the carrier roller ( 3 ) on the first side of the carrier rail opposing the guide roller ( 4 ) on the second side of the carrier rail, wherein the arrangement of the carrier rollers ( 3 ) and the guide rollers ( 4 ) is axially symmetrical to the vertical axis ( 5 ) of the chassis ( 1 ) and wherein no two carrier rollers ( 3 ) have the same horizontal axis of rotation.
2. The chassis ( 1 ) according to claim 1 , further comprising two carrier plates ( 6 , 7 ) connected to one another and constructed identically to one another, wherein each of the carrier plates ( 6 , 7 ) bears one of the pair of carrier rollers ( 3 ) and one of the pair of guide rollers ( 4 ).
3. The chassis ( 1 ) according to claim 1 , further comprising a pair of support rollers ( 8 ) having the same horizontal axis of rotation as the carrier rollers ( 3 ) arranged underneath the carrier rail.
4. The chassis ( 1 ) according to claim 2 , further comprising a pair of support rollers ( 8 ) having the same horizontal axis of rotation as the carrier rollers ( 3 ) arranged underneath the carrier rail.
5. A cable or pipeline trolley ( 2 ) for movement along a carrier rail comprising at least one chassis ( 1 ) according to claim 1 .
6. A cable or pipeline trolley ( 2 ) for movement along a carrier rail comprising at least one chassis ( 1 ) according to claim 2 .
7. A cable or pipeline trolley ( 2 ) for movement along a carrier rail comprising at least one chassis ( 1 ) according to claim 3 .
8. A cable or pipeline trolley ( 2 ) for movement along a carrier rail comprising at least one chassis ( 1 ) according to claim 4 .
9. A chassis ( 1 ) for a cable or pipeline trolley ( 2 ) for movement along a carrier rail in a direction of movement, the chassis ( 1 ) consisting of:
at least one pair of carrier rollers ( 3 ) having a horizontal axis of rotation; and
at least one pair of guide rollers ( 4 ) having a vertical axis of rotation perpendicular to the horizontal axis of rotation, the carrier rollers ( 3 ) and the guide rollers ( 4 ) arranged in an arrangement such that one of the pair of carrier rollers ( 3 ) is located in front of with respect to the direction of movement one of the pair of guide rollers ( 4 ) on a first side of the carrier rail and the other carrier roller ( 3 ) is located behind with respect to the direction of movement the other guide roller ( 4 ) on a second side of the carrier rail, the carrier roller ( 3 ) on the second side of the carrier rail opposing the guide roller ( 4 ) on the first side of the carrier rail and the carrier roller ( 3 ) on the first side of the carrier rail opposing the guide roller ( 4 ) on the second side of the carrier rail, wherein the arrangement of the carrier rollers ( 3 ) and the guide rollers ( 4 ) is axially symmetrical to a vertical axis ( 5 ) of the chassis ( 1 ) and wherein no two carrier rollers ( 3 ) have the same horizontal axis of rotation.
10. The chassis ( 1 ) according to claim 9 , further comprising two carrier plates ( 6 , 7 ) connected to one another and constructed identically to one another, wherein each of the carrier plates ( 6 , 7 ) bears one of the pair of carrier rollers ( 3 ) and one of the pair of guide rollers ( 4 ).
11. The chassis ( 1 ) according to claim 9 , further comprising a pair of support rollers ( 8 ) having the same horizontal axis of rotation as the carrier rollers ( 3 ) arranged underneath the carrier rail.
12. A cable or pipeline trolley ( 2 ) for movement along a carrier rail comprising at least one chassis ( 1 ) according to claim 9 .