Robotic dust collector

Patent metadata

Field	Value
Publication number	US-11576542-B2
Application number	US-201916672685-A
Country	US
Kind code	B2
Filing date	Nov 4, 2019
Priority date	Nov 7, 2018
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

A robotic dust collector includes: a cover plate that closes an opening of a housing; a first hinge member connected to the cover plate and having an insertion space; an elastic member disposed in the insertion space; and a second hinge member. The second hinge member includes a shaft part that is inserted in the insertion space and supports the elastic member. The second hinge member further includes a fixture part fixed to at least a part of the housing. The second hinge member supports the first hinge member in a manner that allows the first hinge member to rotate about a rotation axis.

First claim

What is claimed is:

1. A robotic dust collector comprising:
a cover plate that closes an opening of a housing;
a first hinge member connected to the cover plate and having an insertion space;
an elastic member disposed in the insertion space; and
a second hinge member that includes a shaft part and a fixture part and supports the first hinge member in a manner that allows the first hinge member to rotate about a rotation axis, the shaft part being inserted in the insertion space and supporting the elastic member, the fixture part being fixed to at least a part of the housing, wherein
the first hinge member includes:
a first positioning part that fixes a relative position of the first hinge member and at least a part of the elastic member in a direction of rotation about the rotation axis; and
a third positioning part that fixes relative positions of the first hinge member and at least a part of the elastic member in radial directions of the rotation axis,

the elastic member includes:
a coil part;
an outer projection projecting outward from the coil part; and
an inner projection projecting inward from the coil part,

the first hinge member includes:
an insertion part in which the insertion space is provided; and
a lever part coupling together the insertion part and the cover plate,

the insertion space includes:
an outer cylinder part;
an inner cylinder part disposed inside the outer cylinder part; and
a projection projecting outward from the outer cylinder part in a radial direction of the rotation axis,

the projection includes a projection space in which the outer projection is disposed,
the first positioning part includes an inner surface of the projection space, and
the third positioning part includes at least one of the inner cylinder part and the outer cylinder part.

2. The robotic dust collector according to claim 1 , wherein the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation.

3. The robotic dust collector according to claim 2 , wherein
the shaft part includes a slit in which at least a part of the elastic member is disposed, and
the second positioning part includes the slit.

4. The robotic dust collector according to claim 1 , wherein
the fixture part includes a flange part connected to the shaft part and a base supporting the flange part,
the flange part includes a first sealing surface disposed around the shaft part, and
the first sealing surface makes contact with a second sealing surface provided to the housing.

5. The robotic dust collector according to claim 1 , wherein
the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation,
the insertion space includes:
a cylindrical space in which the coil part is disposed;
a projection space in which the outer projection is disposed; and
an inside space, and

the second positioning part is disposed in the shaft part inserted in the insertion space and includes a slit in which the inner projection is disposed.

6. The robotic dust collector according to claim 1 , wherein
the fixture part includes a flange part connected to the shaft part and a base supporting the flange part,
the flange part includes a first sealing surface disposed around the shaft part, and
the first sealing surface makes contact with a second sealing surface provided to the housing.

7. The robotic dust collector according to claim 1 , wherein
the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation,
the fixture part includes a flange part connected to the shaft part and a base supporting the flange part,
the flange part includes a first sealing surface disposed around the shaft part, and
the first sealing surface makes contact with a second sealing surface provided to the housing.

8. A robotic dust collector comprising:
a cover plate that closes an opening of a housing;
a first hinge member connected to the cover plate and having an insertion space;
an elastic member disposed in the insertion space; and
a second hinge member that includes a shaft part and a fixture part and supports the first hinge member in a manner that allows the first hinge member to rotate about a rotation axis, the shaft part being inserted in the insertion space and supporting the elastic member, the fixture part being fixed to at least a part of the housing, wherein the fixture part includes:
a base connected to the shaft part;
an arm part facing the base with a gap therebetween; and
a connection part connecting one end of the arm part and the base with each other.

9. The robotic dust collector according to claim 8 , wherein
the first hinge member includes a first positioning part that fixes a relative position of the first hinge member and at least a part of the elastic member in a direction of rotation about the rotation axis.

10. The robotic dust collector according to claim 9 , wherein the first hinge member includes a third positioning part that fixes relative positions of the first hinge member and at least a part of the elastic member in radial directions of the rotation axis.

11. The robotic dust collector according to claim 8 , wherein a cable that is connected to the cover plate is disposed between the base and the arm part.

12. The robotic dust collector according to claim 8 , wherein the elastic member includes:
a coil part;
an outer projection projecting outward from the coil part; and
an inner projection projecting inward from the coil part.

13. The robotic dust collector according to claim 8 , wherein
the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation,
the elastic member includes:
a coil part;
an outer projection projecting outward from the coil part; and
an inner projection projecting inward from the coil part,

the insertion space includes:
a cylindrical space in which the coil part is disposed;
a projection space in which the outer projection is disposed; and
an inside space, and

the second positioning part is disposed in the shaft part inserted in the insertion space and includes a slit in which the inner projection is disposed.

14. The robotic dust collector according to claim 8 , wherein
the first hinge member includes:
a first positioning part that fixes a relative position of the first hinge member and at least a part of the elastic member in a direction of rotation about the rotation axis; and
a third positioning part that fixes relative positions of the first hinge member and at least a part of the elastic member in radial directions of the rotation axis,

the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation,
the shaft part includes a slit in which at least a part of the elastic member is disposed, and
the second positioning part includes the slit.

15. The robotic dust collector according to claim 8 , wherein
the second hinge member includes a second positioning part that fixes a relative position of the second hinge member and at least a part of the elastic member in the direction of rotation.

16. The rob

Assignees

• Makita Corp

Inventors

• Koura Kentaro
• Sumiyoshi Hirotaka

Classifications

• A47L2201/00

  Robotic cleaning machines, i.e. with automatic control of the travelling movement or the cleaning operation · CPC title

• A47L11/4063 Primary

  Driving means; Transmission means therefor · CPC title

• A47L9/14 Primary

  Bags or the like; {Rigid filtering receptacles;} Attachment of, or closures for, bags {or receptacles} · CPC title

• A47L9/1445 Primary

  with closure means · CPC title

• A47L9/00 Primary

  Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners · CPC title