Motorized roller

Patent metadata

Field	Value
Publication number	US-9873565-B2
Application number	US-201515329489-A
Country	US
Kind code	B2
Filing date	Jul 30, 2015
Priority date	Jul 30, 2014
Publication date	Jan 23, 2018
Grant date	Jan 23, 2018

Abstract

Provided is a motor-incorporating roller capable of preventing a grease supply portion from separating. The motor-incorporating roller has a motor and a reducer in a cylindrical roller body and the reducer is provided with a gear train including a plurality of gears. The motor-incorporating roller has a grease supply portion that supplies grease to the plurality of gears in the reducer and is capable of containing grease therein. Furthermore, the motor-incorporating roller has a power output member that outputs power and a shaft portion that pivotally supports the gears. The grease supply portion is integrated with the power output member through the shaft portion to restrict movement of the shaft portion in an axial direction.

First claim

The invention claimed is:

1. A motor-incorporating roller comprising a cylindrical roller body that includes a motor and a reducer therein,
the reducer including:
a gear train having a plurality of gears; and
a grease supply portion capable of containing grease therein and supplying the grease to the plurality of gears,
the motor-incorporating roller further including:
a power output member outputting power; and
a shaft portion pivotally supporting the gears,
wherein the grease supply portion is integrated with the power output member through the shaft portion to restrict movement of the shaft portion in an axial direction.

2. The motor-incorporating roller according to claim 1 , wherein the shaft portion and the grease supply portion are engaged directly or through an alternative member in the axial direction.

3. The motor-incorporating roller according to claim 2 ,
wherein the grease supply portion has a plate-like support portion,
wherein the plate-like support portion has an attachment hole to which the shaft portion can be attached,
wherein there is a protrusion on at least one of an inner wall surface of the attachment hole and an outer peripheral surface of the shaft portion, and
wherein a part of the shaft portion enters an inside of the attachment hole, so that the inner wall surface of the attachment hole and the outer peripheral surface of the shaft portion are engaged with each other by the protrusion.

4. The motor-incorporating roller according to claim 3 , wherein the protrusion is a protruding ridge extending continuously or intermittently in a circumferential direction of the shaft portion.

5. The motor-incorporating roller according to claim 3 , wherein the plate-like support portion is formed of resin.

6. The motor-incorporating roller according to claim 2 ,
wherein the grease supply portion has a plate-like support portion,
wherein the plate-like support portion has an attachment hole to which the shaft portion can be attached,
wherein the shaft portion is inserted into the attachment hole so that an end portion thereof is projected from the attachment hole, and
wherein the alternative member is attached to a projected portion of the shaft portion.

7. The motor-incorporating roller according to claim 1 ,
wherein the grease supply portion includes a grease containing portion capable of containing the grease therein,
wherein the grease containing portion has an introduction hole capable of introducing the grease from outside, and
wherein when the grease supply portion and the power output member are integrated, a part of the power output member closes an opening of the introduction hole of the grease containing portion.

8. The motor-incorporating roller according to claim 7 , wherein an extension direction of the introduction hole is the same as the axial direction of the shaft portion.

9. The motor-incorporating roller according to claim 1 ,
wherein the grease supply portion has a grease containing portion capable of containing the grease therein,
wherein the grease containing portion includes a grease supply hole capable of delivering the grease, and
wherein while driving, the grease supply portion revolves or rotates inside the roller body to supply the inside grease from the grease supply hole by a centrifugal force or a gravitational force.

10. The motor-incorporating roller according to claim 9 ,
wherein the grease containing portion includes a pair of the grease supply holes opposed to each other, the pair of the grease supply holes comprising a first grease supply hole and a second grease supply hole,
wherein the first grease supply hole is located nearer a rotation center of the grease supply portion than the second grease supply hole, and
wherein an opening area of the first grease supply hole is larger than an opening area of the second grease supply hole.

11. The motor-incorporating roller according to claim 10 ,
wherein the grease containing portion has an introduction hole capable of introducing the grease from outside, and
wherein an opening area of the introduction hole is larger than an opening area of each of the grease supply holes.

12. The motor-incorporating roller according to claim 1 ,
wherein the gear train comprises: a sun gear; a planetary gear; and an internal gear for orbit,
the internal gear for orbit being located outside the sun gear,
the planetary gear being engaged with both the sun gear and the internal gear for orbit to revolve around the sun gear, and
wherein the shaft portion pivotally supports the planetary gear.

Assignees

• Itoh Denki Co Ltd

Inventors

• Itoh Kazuo
• Nakamura Tatsuhiko

Classifications

• B65G39/00

  Rollers, e.g. drive rollers, or arrangements thereof incorporated in roller-ways or other types of mechanical conveyors  (driving gear for rollers of roller-ways B65G13/06) · CPC title

• B65G45/04

  for rollers · CPC title

• F16H57/082

  Planet carriers · CPC title

• F16H57/04

  Features relating to lubrication or cooling {or heating} (control of lubrication or cooling in hydrostatic gearing F16H61/4165) · CPC title

• F16H2057/02034

  Gearboxes combined or connected with electric machines · CPC title