1461186815-7df8dede-bf01-44d1-a241-2aca55f5be09

1. A mattress comprising:
a plurality of cores,
wherein each of the plurality of cores includes:
an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together;
a latex layer provided with a plurality of air vent holes; and
a urethane layer sandwiched between the extremely fine fibrous resin layer and the latex layer.
2. The mattress according to claim 1, wherein a number of the plurality of cores is three or six in response to a size of the mattress.
3. A laid bedding for a bed, comprising:
the mattress according to claim 1; and
a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.
4. The laid bedding for abed according to claim 3, wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other.
5. The laid bedding for a bed according to claim 3, wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame.
6. A mattress comprising:
a plurality of cores,
wherein each of the plurality of cores includes:
an extremely fine fibrous resin layer in which extremely fine fibrous resin is three-dimensionally intertwined and welded together;
a low-resilience urethane layer; and
a urethane layer sandwiched between the extremely fine fibrous resin layer and the low resilience urethane layer.
7. The mattress according to claim 6, wherein a number of the plurality of cores is three or six in response to a size of the mattress.
8. A laid bedding for a bed, comprising:
the mattress according to claim 6; and
a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.
9. The laid bedding for a bed according to claim 8, wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other.
10. The laid bedding for a bed according to claim 8, wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame.
11. A mattress comprising:
a plurality of cores,
wherein each of the plurality of cores includes:
a latex layer provided with a plurality of air vent holes;
a low resilience urethane layer; and
a urethane layer sandwiched between the latex layer and the low-resilience urethane layer.
12. The mattress according to claim 11, wherein a number of the plurality of cores is three or six in response to a size of the mattress.
13. A laid bedding for a bed, comprising:
the mattress according to claim 11; and
a box-like closed-bottom frame in which the mattress is laid and filled, the closed-bottom frame including a bottom portion and an edge portion provided on a peripheral portion of the bottom portion.
14. The laid bedding for a bed according to claim 13, wherein the closed-bottom frame has a plurality of air vent holes which allow an inner surface and outer surface of the closed-bottom frame to communicate with each other.
15. The laid bedding for a bed according to claim 13, wherein a thickness of the mattress is higher than a height of the edge portion of the closed-bottom frame.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. An additive manufacturing assembly comprising:
a work space including a plurality of separate regions;
an energy transmitting device for focusing an energy beam to a specific location within one of the plurality of regions within the work space; and
a splitter for dividing the energy beam to focus energy to a location within at least two of the plurality of separate regions of the work space.
2. The additive manufacturing assembly as recited in claim 1, wherein the splitter simultaneously divides the energy beam into each of the plurality of regions within the work space.
3. The additive manufacturing assembly as recited in claim 2, wherein the splitter directs each of the energy beams separately within each of the plurality of regions.
4. The additive manufacturing assembly as recited in claim 3, wherein the splitter comprise a plurality of directing features controllable for focusing energy from the energy transmitting device within each of the plurality of separate regions.
5. The additive manufacturing assembly as recited in claim 1, wherein the energy-transmitting device comprises a Laser beam.
6. A method of additive manufacturing comprising the steps of:
defining a work space including a plurality of regions;
defining a part configuration;
applying a layer of material over the work space;
splitting a single energy beam into a plurality of energy beams; and
directing each of the plurality of energy beams into the work space for melting the material within the work space according to the defined part configuration.
7. The method of additive manufacturing as recited in claim 6, including splitting the energy beam such that one of the plurality of energy beams is directed simultaneously into each of the plurality of regions within the work space.
8. The method of additive manufacturing as recited in claim 6, including separately controlling each of the energy beams within each of the plurality of regions.
9. An additive manufacturing assembly comprising:
a work space including a plurality of separate regions;
an energy transmitting device for focusing an energy beam to a specific location within the work space; and
a transit supporting the energy transmitting device, the transit movable relative to the work space for positioning the energy transmitting device relative to the workspace for focusing the energy beam within each of the plurality of separate regions.
10. The additive manufacturing assembly as recited in claim 9, including a controller for governing movement of the transit relative to the workspace.
11. The additive manufacturing assembly as recited in claim 9, wherein the energy transmitting device produces a plurality of separate energy beams that focus energy separately on different regions within the workspace.
12. The additive manufacturing assembly as recited in claim 9, wherein the energy transmitting device comprises a plurality of separately controllable energy transmitting devices.
13. An additive manufacturing assembly comprising:
a workspace including a plurality of separate regions;
a plurality of energy transmitting devices corresponding with the plurality of separate regions of the workspace, each of the plurality of energy transmitting devices separately controllable for focusing an energy beam within the workspace; and
a controller for coordinating actuation of the plurality of energy transmitting devices.
14. The additive manufacturing assembly as recited in claim 13, including overlapping zones between adjacent ones of the plurality of separate regions of the workspace and each of the plurality of energy transmitting devices are arranged to transmit energy within the corresponding overlapping zones.
15. The additive manufacturing assembly as recited in claim 14, wherein each of the plurality of energy transmitting devices directs energy to a surface of a corresponding one of the separate regions of the workspace.
16. A method of additive manufacturing comprising the steps of:
defining a work space including a plurality of regions;
defining a part configuration;
applying a layer of material over the work space;
directing a plurality of energy beams into the work space for melting the material within the work space according to the defined part configuration.
17. The method of additive manufacturing as recited in claim 16, including directing each of the plurality of energy beams into separate ones of the plurality of regions and separately controlling each of the plurality of energy beams independent of the other ones of the plurality of energy beams.
18. The method of additive manufacturing as recited in claim 17, including defining overlapping regions between each of the plurality of regions defined in the workspace and controlling each of the plurality of energy beams to direct energy into corresponding overlapping regions.