Low profile electric sander
First Claim
1. A low profile, hand held orbital electric sander, comprising:
- a. a housing and an orbit mechanism disposed beneath the housing;
b. a motor disposed within the housing, the motor having a stator, the stator having a lamination stack having a height, the motor having a diameter and an overall height wherein a motor diameter to stator lamination height ratio is at least 2;
1 and a motor diameter to overall motor height ratio is at least 1;
1; and
c. the housing including a palm grip having a diameter and the sander is a corded sander having a maximum height of 120 mm and the palm grip diameter to sander height ratio is at least 0.6;
1.
1 Assignment
0 Petitions
Accused Products
Abstract
A power tool is a “low profile” power tool, that is the overall height of the power tool is sufficiently small that a user can grasp the top of the power tool with the user'"'"'s hand and the hand will be positioned relative close to the bottom of the power tool compared with existing power tools. The low profile power tool uses a low profile motor having a diameter to lamination height ratio of at least 2:1. In an aspect of the invention, the motor is an electronically commutated “pancake” style motor. In an aspect of the invention, the power tool is a random orbital sander or an orbital sander having a motor that provides at least 40 watts of power. In an aspect of the invention, the sander has a mechanical brake that brakes the orbital mechanism and the motor is dynamically braked.
-
Citations
56 Claims
-
1. A low profile, hand held orbital electric sander, comprising:
-
a. a housing and an orbit mechanism disposed beneath the housing; b. a motor disposed within the housing, the motor having a stator, the stator having a lamination stack having a height, the motor having a diameter and an overall height wherein a motor diameter to stator lamination height ratio is at least 2;
1 and a motor diameter to overall motor height ratio is at least 1;
1; andc. the housing including a palm grip having a diameter and the sander is a corded sander having a maximum height of 120 mm and the palm grip diameter to sander height ratio is at least 0.6;
1. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A low profile, hand held orbital electric sander, comprising:
-
a. a housing and an orbit mechanism disposed beneath the housing; b. a motor having a rated power output of at least 40 watts disposed within the housing, the motor having a stator, the stator having a lamination stack having a height, the motor having a diameter and an overall height wherein a motor diameter to stator lamination height ratio is at least 2;
1 and a motor diameter to overall motor height ratio is at least 1;
1; andc. the housing including a palm grip having a diameter and the sander having a height wherein a palm grip diameter to sander height ratio is at least 0.4;
1.
-
-
28. A low profile, hand held orbital electric sander, comprising:
-
a. a housing and an orbit mechanism disposed beneath the housing; b. an electronically commutated motor disposed within the housing, the motor having a stator, the stator having a lamination stack having a height, the motor having a diameter and an overall height wherein a motor diameter to stator lamination height ratio is at least 2;
1 and a motor diameter to overall motor height ratio is at least 1;
1;c. a power cord coupled to the motor for connecting the motor to a source of AC; and d. the housing including a palm grip having a diameter and the sander having a height wherein a palm grip diameter to sander height ratio is at least 0.6;
1. - View Dependent Claims (29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50)
-
-
51. A low profile, hand held orbital electric sander, comprising:
-
a. a housing and an orbit mechanism disposed beneath the housing; b. a motor disposed within the housing, the motor having a stator, the stator having a lamination stack having a height, the motor having a diameter and an overall motor height wherein a motor diameter to stator lamination height ratio is at least 2;
1 and a motor diameter to overall motor height ratio is at least 1;
1;c. the housing including a palm grip having a diameter and the sander having a height wherein a palm grip diameter to sander height ratio is at least 0.4;
1; andd. a switch coupled across windings of the motor that dynamically brakes the motor and a mechanical brake that brakes the orbit mechanism. - View Dependent Claims (52, 53, 54, 55, 56)
-
Specification