POWDER CONVEYANCE DEVICE
First Claim
1. A powder conveyance device comprising:
- a powder container section configured to contain powder;
a powder conveyance pipe configured to guide downstream the powder mixed with air from the powder container section; and
a powder conveyance member configuration to convey the powder installed in the powder conveyance pipe toward a conveyance destination;
said powder conveyance pipe including;
a first conveyance section having a supply inlet and communicating with the powder container section, said first conveyance section being configured to receive the powder from the powder container through the supply inlet;
a second conveyance section communicating downstream with the first conveyance section via a first bending section, said second conveyance section downwardly extending to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section;
a third conveyance section communicating downstream with the second conveyance section via a second bending section, said third conveyance section extending toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section, said third conveyance section having a replenishment outlet for replenishing the powder from the powder conveyance pipe to the powder conveyance destination; and
a space restriction member at least arranged in the second conveyance section and configured to partially close an inner space of the second conveyance section.
1 Assignment
0 Petitions
Accused Products
Abstract
A powder conveyance device includes a powder conveyance pipe having a first conveyance section communicating with the powder container section and having a supply inlet to receive powder from a powder container. A second conveyance section is provided in the powder conveyance pipe to communicate downstream with the first conveyance section via a first bending section. The second conveyance section downwardly extends to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section. A third conveyance section is also provided in the powder conveyance pipe to communicate downstream with the second conveyance section via a second bending section. The third conveyance section extends toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section. The third conveyance section has a replenishment outlet for replenishing the powder from the powder conveyance pipe to the powder conveyance destination. A space restriction member is provided and is at least arranged in the second conveyance section and partially closes an inner space of the second conveyance section.
56 Citations
12 Claims
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1. A powder conveyance device comprising:
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a powder container section configured to contain powder; a powder conveyance pipe configured to guide downstream the powder mixed with air from the powder container section; and a powder conveyance member configuration to convey the powder installed in the powder conveyance pipe toward a conveyance destination;
said powder conveyance pipe including;a first conveyance section having a supply inlet and communicating with the powder container section, said first conveyance section being configured to receive the powder from the powder container through the supply inlet; a second conveyance section communicating downstream with the first conveyance section via a first bending section, said second conveyance section downwardly extending to the conveyance destination being inclined from a horizontal at a larger angle than the first conveyance section; a third conveyance section communicating downstream with the second conveyance section via a second bending section, said third conveyance section extending toward the conveyance destination being inclined from the horizontal at a smaller angle than the second conveyance section, said third conveyance section having a replenishment outlet for replenishing the powder from the powder conveyance pipe to the powder conveyance destination; and a space restriction member at least arranged in the second conveyance section and configured to partially close an inner space of the second conveyance section. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification