GB2371508A

GB2371508A - Sander assembly with adjustable sander member

Info

Publication number: GB2371508A
Application number: GB0101795A
Authority: GB
Inventors: Tian-Wang Wang
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-01-24
Filing date: 2001-01-24
Publication date: 2002-07-31
Anticipated expiration: 2021-01-24
Also published as: GB2371508B; GB0101795D0

Description

SANDER ASSEMBLY HAVING ADJUSTABLE SANDER MEMBER The invention relates to a sander assembly including an adjustable sander member.

The applicant has developed a typical sander device which has been issued as U. S. Patent No.

6,095, 906 to Wang and which includes a vertical sander barrel provided on top of a work table, and a sander wheel supporting on a supporting base. The sander barrel and the sander wheel may not be adjusted relative to the supporting base such that the sanders may not be conveniently used for conducting various kinds of sanding operations.

It is accordingly an object of the present invention to provide a sander assembly including an adjustable sander member that may be adjusted between a horizontal working position and a vertical working position for conducting various kinds of sanding operations.

According to the present invention there is provided a sander assembly comprising: a) a first sander member, b) a second sander member, c) a motor disposed between and coupled to the first and the second sander members for driving the first and the second sander members, and d) means for adjusting the second sander member between a vertical working position and a horizontal

working position.

The second sander member includes a frame, a first roller and a second roller rotatably secured to the frame, and a sander belt engaged around the first and the second rollers, the motor includes a spindle coupled to the first roller for driving the sander belt via the first roller.

The frame includes a shaft rotatably secured therein and secured to the spindle for being driven by the motor, the first roller is secured on the shaft.

A bracket is slidably secured in the frame, the second roller is rotatably secured in the bracket, the bracket is adjustable and movable relative to the first roller for tightening the sander belt.

A seat is further provided and secured on a base and includes a clamping ring, a hub is secured to the frame and adjustably secured to the seat with the clamping ring.

A platform is further provided and secured to the frame for supporting work pieces. One or more covers are further provided and attached to the frame for partially shielding the sander belt.

In the drawings: FIG. 1 is a perspective view of a sander assembly; FIGS. 2 and 3 are partial exploded views of the sander assembly; and FIG. 4 is a perspective view illustrating the

adjustment and the operation of the sander assembly.

Referring to FIGS. 1-3, a sander assembly comprises a housing 10 disposed on a base 11, a work table 12 disposed on the housing 10, a sander member, such as a sander barrel 14 vertically supported above the work table 12, and a motor 16 disposed on the base 11 and coupled to the vertical sander barrel 14 for rotating and driving the sander barrel 14 to conduct one kind of the sanding operations. An example of a gear coupling for coupling the motor 16 to the sander barrel 14 has been disclosed in U. S. Patent No.

6,095, 906 to Wang which is taken as a reference for the present invention. The motor 16 includes a spindle 17 having a key 18 or the like engaged therein. The spindle 17 has one end extended inward of the housing 10 for coupling to the sander barrel 14, and has the other end extended outward of the motor 16 and extended away from the housing 10.

A seat 19 is secured on the base 11 and includes a clamping ring 20 provided thereon. The spindle 17 is extended through the clamping ring 20. A frame 30 has an extension 31 extended from one end thereof and secured to a hub 32 which is engaged in the clamping ring 20 and adjustably secured to the seat 19 by the clamping ring 20. The hub 32 may further be solidly secured in the clamping ring 20 by a teeth or key engagement for adjustably and stably supporting the

frame 30 on the vertical working position (FIGS. 1-3) or on the horizontal working position (FIG. 4) at least. A platform 40 is pivotally secured to the frame 30 and includes one or more curved slots 41 formed therein. One or more fasteners 42 are engaged through the curved slots 41 of the platform 40 and secured to the frame 30 and slidably received in the curved slots 41 of the platform 40 for adjustably securing the platform 40 to the frame 30 at any selected suitable angular position.

A roller 33 is rotatably secured in one end of the frame 30 with a shaft 34 which is secured to the spindle 17 with such as the key 18, such that the roller 33 may be rotated and driven by the motor 16.

Another roller 35 is rotatably secured in a bracket 36 which is adjustably secured in the frame 30 and adjustable and movable toward and away from the roller 33. A sander member, such as a sander belt 37 is engaged around the rollers 33,35. A handle 39 is coupled to the bracket 36 for moving and adjusting the bracket 36 away from the roller 33 and for tightening the sander belt 37 and for solidly engaging and securing the sander belt 37 on the rollers 33,35. The sander belt 37 may thus be rotated or driven by the motor 16 via the roller 33. One or more covers 38 may be attached to the frame 30 for partially shielding or covering the sander belt 37 and for allowing only the

required portions of the sander belt 37 to be exposed for conducting the sanding operations.

In operation, as shown in FIGS. 1 and 4, the frame 30 and thus the sander belt 37 may be adjustably secured to the seat 19 either at the vertical working position (FIG. 1) or at the horizontal working position (FIG. 4), by the adjustably securing of the hub 32 in the clamping ring 20 of the seat 19, in order to selectively conduct two kinds of sanding operations.

The platform 40 may be secured to the frame 30 in a horizontal position for supporting the work pieces when the sander belt 37 is supported in the vertical working position (FIG. 2). The platform 40 may be disengaged from the frame 30 when the sander belt 37 is supported in the horizontal working position (FIG. 4). The motor 16 may thus be used to drive two sander members 14,37, and the sander member 37 may be adjusted between a horizontal working position and a vertical working position. The sander members 14,37 of the sander assembly may thus be used for conducting at least three kinds of sanding operations.

Claims

CLAIMS : 1. A sander assembly comprising : a) a first sander member, b) a second sander member, c) a motor coupled to the first and the second sander members for driving the first and the second sander members, and d) means for adjusting the second sander member between a vertical working position and a horizontal working position. 2. The sander assembly according to claim 1, wherein the second sander member includes a frame, a first roller and a second roller rotatably secured to the frame, and a sander belt engaged around the first and the second rollers, the motor includes a spindle coupled to the first roller for driving the sander belt via the first roller. 3. The sander assembly according to claim 2, wherein the frame includes a shaft rotatably secured therein and secured to the spindle for being driven by the motor, the first roller is secured on the shaft. 4. The sander assembly according to claim 2 further comprising a bracket slidably secured in the frame, the second roller being rotatably secured in the bracket, the bracket being adjustable relative to the first roller for tightening the sander belt. 5. The sander assembly according to claim 2 further comprising a base, a seat secured on the base and including a clamping ring, a hub secured to the frame and adjustably secured to the seat with the clamping ring. 6. The sander assembly according to claim 2 further comprising a platform secured to the frame for supporting work pieces. 7. The sander assembly according to claim 2 further comprising at least one cover attached to the frame for partially shielding the sander belt. 8. The sander assembly substantially as herein described with reference to the accompanying drawings. Amendments to the claims have been filed as follows

1. A sander assembly comprising: a) a first sander member, b) a second sander member, c) a motor coupled to the first and second sander members for driving the first and second sander members, and d) means for adjusting the second sander member between a vertical working position and a horizontal working position.

2. A sander assembly as claimed in Claim 1, in which the motor is disposed between the first and second sander members.

3. A sander assembly as claimed in either of the preceding claims, in which the second sander member includes a frame, first and second rollers rotatably mounted on the frame and a sander belt engaged around the first and second rollers.

4. A sander assembly as claimed in Claim 3, in which the motor has a spindle coupled to the first roller for driving the sander belt via the first roller.

5. A sander assembly as claimed in Claim 4, in which a shaft is rotatably mounted on the frame and is secured to the spindle so as to be driven by the motor and the first roller is mounted on the shaft.

6. A sander assembly as claimed in any one of Claims 3 to 5, in which a bracket is slidably mounted on the frame and the second roller is rotatably mounted on the bracket, such that the bracket is adjustable relative to the first roller for tightening the sander belt.

7. A sander assembly as claimed in any one of Claims 3 to 6, which includes a base, a seat secured to the base and a clamping ring, and in which a hub is secured to the frame, with the hub being adjustably connected to the seat by means of the clamping ring.

8. A sander assembly as claimed in any one of Claims 3 to 7, which includes a platform secured to the frame for supporting work pieces.

9. A sander assembly as claimed in any one of Claims 3 to 8, which includes a cover attached to the frame for partially shielding the sander belt.

10. A sander assembly substantially as hereinbefore described with reference to and as shown in the accompanying drawings.