Upright vacuum cleaner

Patent metadata

Field	Value
Publication number	US-10188247-B2
Application number	US-201615539154-A
Country	US
Kind code	B2
Filing date	Mar 4, 2016
Priority date	Dec 10, 2015
Publication date	Jan 29, 2019
Grant date	Jan 29, 2019

Abstract

An upright vacuum cleaner ( 1 ) includes a brushroll ( 11 ); a motor assembly ( 200 ) including a motor housing ( 21 ) and a motor ( 22 ), in which a rotating axis of the motor ( 22 ) and a rotating axis of the brushroll ( 11 ) are disposed in a non-parallel manner, and the motor ( 22 ) drives the brushroll ( 11 ) rolling by a drive belt ( 13 ) and is rotatable between a first upright position of tensioning the drive belt ( 13 ) and a first oblique position of loosening the drive belt ( 13 ); a body assembly ( 300 ) including a body ( 31 ), a bridging member ( 32 ) and a dirt cup ( 37 ) mounted on the body ( 31 ), in which the bridging member ( 32 ) is rotatably connected with the motor housing ( 21 ) to make the body ( 31 ) rotatable between a second upright position and a second oblique position, and the motor ( 22 ) is moved by the bridging member ( 32 ) from the first oblique position to the first upright position when the body ( 31 ) moves from the second upright position to the second oblique position.

First claim

What is claimed is:

1. An upright vacuum cleaner, comprising:
a brushroll;
a motor assembly comprising a motor housing and a motor disposed within the motor housing, wherein a rotating axis of the motor and a rotating axis of the brushroll are disposed in a non-parallel manner, and the motor drives the brushroll to roll via a drive belt and is rotatable between a first upright position wherein the drive belt is tensioned and a first oblique position wherein the drive belt is released;
a body assembly comprising a body, a bridging member mounted to the body and rotatably connected with the motor housing to make the body rotatable between a second upright position and a second oblique position, and a dirt cup mounted to the body;
wherein the motor is moved from the first oblique position to the first upright position by the bridging member when the body moves from the second upright position to the second oblique position.

2. The upright vacuum cleaner according to claim 1 , further comprising:
a clutching device disposed between the bridging member and the motor, wherein the motor is moved from the first oblique position to the first upright position by the bridging member via the clutching device, when the body moves from the second upright position to the second oblique position; and
wherein the clutching device comprises:
a first block fixed to the motor;
a second block disposed to the bridging member; and
a lever cam member rotatably disposed to the motor housing and having a first end and a second end configured to cooperate with the first toggling block and the second toggling block respectively.

3. The upright vacuum cleaner according to claim 2 , wherein the lever cam member comprises: lever cam member comprises: a rotary joint rotatably connected to the motor housing; a first toggling part fixed at a first side of an axial section of the rotary joint and cooperated with the first toggling block; and a second toggling part fixed at a second side of the axial section opposite to the first side, cooperated with the second toggling block, wherein the first and second toggling parts are extended in directions away from each other.

4. The upright vacuum cleaner according to claim 3 , wherein a maximum distance between the second toggling part and a center of the rotary joint is greater than a maximum distance between the first toggling part and the center of the rotary joint, and widths of the first toggling part and the second toggling part are both decreased gradually along a first direction and a second direction away from the rotary joint.

5. The upright vacuum cleaner according to claim 2 , wherein the lever cam member is provided with a retaining groove, and the first toggling block is fitted within the retaining groove when the motor is moved to the first upright position.

6. The upright vacuum cleaner according to claim 2 , wherein the clutching device comprises:
a first sliding rail formed in the bridging member and comprising a tail end having a first sliding rail tail groove formed by a recess in a surface of the tail end of the first sliding rail; and
a lever rotating member rotatably disposed to the motor housing and comprising a first and second ends configured to cooperate with the first sliding rail and the motor respectively,
wherein when the body is moved from the second upright position to the second oblique position, the first end of the lever rotating member slides from the first sliding rail tail groove to the first sliding rail, and the motor is moved by the second end of the lever rotating member from the first oblique position to the first upright position.

7. The upright vacuum cleaner according to claim 6 , wherein the first sliding rail is configured as an arc sliding rail with a rotating axis of the bridging member as a central axis thereof;
wherein the first sliding rail and the first sliding rail tail groove are connected by means of a smooth transition via a guide surface; and
wherein the first sliding rail is formed in an inner top wall of the bridging member, and one lever rotating member is opposite to a top center of a side of the motor away from the brushroll.

8. The upright vacuum cleaner according to claim 2 , wherein the clutching device comprises:
a second sliding rail disposed to the bridging member;
a toggling tongue fixed to the motor and rotatable relative to the motor housing; and
a lever member having a first end configured to slidably cooperate with the second sliding rail and a second end configured to cooperate with an end of the toggling tongue.

9. The upright vacuum cleaner according to claim 8 , wherein a stopping block is disposed at a lower end of the second sliding rail to prevent the first end of the lever member from slipping off from the lower end of the second sliding rail.

10. The upright vacuum cleaner according to claim 8 , wherein the second end of the lever member is configured as a hook, and the end of the toggling tongue is configured to be engaged in the hook.

11. The upright vacuum cleaner according to claim 8 , wherein the toggling tongue comprises:
a rotational part, wherein one of the rotational part and the motor housing is provided with a rotating shaft, and the other thereof is provided with a rotating shaft hole configured to rotarily cooperate with the rotating shaft; and
a tongue part having a first end connected with the rotational part and a second end extending along a curve in a direction away from the rotational part, wherein the second end of the tongue part is configured to cooperate with the second end of the lever member.

12. The upright vacuum cleaner according to claim 8 , wherein the second sliding rail extends along an arc with the rotating axis of the bridging member as a central axis thereof.

13. The upright vacuum cleaner according to claim 2 , wherein the clutching device comprises:
a slide chute formed in the bridging member;
a triggering member rotatably supported at the motor housing and having a first end with a sliding column configured to enter the slide chute and slidably cooperate with the slide chute and a second end having a toggling rod configured to prod the motor to move;
wherein the sliding column slides along the slide chute to make the triggering member rotate when the bridging member makes the slide chute move, and the toggling rod prod the motor to rotate relative to the motor housing when the triggering member rotates;
wherein the triggering member comprises:
a first triggering part in which the sliding column is formed;
a second triggering part to which the toggling rod is formed; and
a pivot section connected between the first triggering part and the second triggering part and rotatably passing through the motor housing;
wherein the pivot section is disposed vertically; the first triggering part is disposed in perpendicular to the pivot section; along a direction from a first end of the first triggering part adjacent to the sliding column to a second end of the first triggering part adjacent to the pivot section, a vertical height of the first triggering part is decreased gradually and an upper surface of the first triggering part is configured as an arc surface corresponding to a shape of the bridging member,
wherein the motor housing is provided with an accommodating space for accommodating the first triggering part and for rotation of the first triggering part;
wherein the pivot section is disposed vertically; the first triggering part and the toggling rod are disposed in perpendicular to the pivot section; an angle between an extension direction of length of the toggling rod and an extension direction of l

Assignees

• Jiangsu Midea Cleaning Appliances Co Ltd

Inventors

• Hu Wei
• Zou Hui
• Xiao Xiahu

Classifications

• A47L9/165

  Construction of inlets · CPC title

• A47L5/225

  Convertible suction cleaners, i.e. convertible between different types thereof, e.g. from upright suction cleaners to sledge-type suction cleaners · CPC title

• A47L9/009

  Carrying-vehicles; Arrangements of trollies or wheels; Means for avoiding mechanical obstacles · CPC title

• A47L9/22

  Mountings for motor fan assemblies · CPC title

• A47L5/00

  Structural features of suction cleaners · CPC title