CA1197376A - Guide for trimming wall coverings - Google Patents
Guide for trimming wall coveringsInfo
- Publication number
- CA1197376A CA1197376A CA000424052A CA424052A CA1197376A CA 1197376 A CA1197376 A CA 1197376A CA 000424052 A CA000424052 A CA 000424052A CA 424052 A CA424052 A CA 424052A CA 1197376 A CA1197376 A CA 1197376A
- Authority
- CA
- Canada
- Prior art keywords
- guide
- plate
- outlet box
- electrical component
- engagement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H7/00—Marking-out or setting-out work
- B25H7/02—Plates having a flat surface
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A guide for trimming wall coverings about an electrical outlet box has a plate like body with openings through it shaped to fit an electrical component within the outlet box. Edges of the body define two guiding edges of the shape of the portion of the wall covering to be trimmed and the guide is supported in trimming position by engagement with the electrical component within the outlet box in such a way that the open front of the outlet box is obturated and the trimming knife cannot come into contact with wiring or terminals within the box.
A guide for trimming wall coverings about an electrical outlet box has a plate like body with openings through it shaped to fit an electrical component within the outlet box. Edges of the body define two guiding edges of the shape of the portion of the wall covering to be trimmed and the guide is supported in trimming position by engagement with the electrical component within the outlet box in such a way that the open front of the outlet box is obturated and the trimming knife cannot come into contact with wiring or terminals within the box.
Description
3~
This invention ls concerned with a guide for use in trimming wall paper and other wall coverings. It is particularly concerned with trimming such wall coverings around electrical outlets and switch receptacles.
A common wall construction comprises a frame of wooden or metal studs to which a covering of gypsum board is applied.
Electrical wiring is disposed within the frame and is connected to switches or power outlets at outlet boxes. The outlet boxes are generally rectangular sectioned, open fronted boxes of galvanized steel having lugs by which they are secured to the marginal edges of openings cut in the gypsum board so that the open fronts of the boxes are flush with the exposed surface of the gypsum board. The boxes have support elements by which an electrical component such as an outlet socket or a switch are mounted. The components have exposed terminals to which the electrical wiring is connected. The assembly is closed by a cover plate which is secured either to the outlet box or to the electrical component by one or more screws, the cover plate extending beyond the marginal edges of the opening cut in the gypsum board.
When applying a wall covering it is usual to remove the cover plate and apply the wall covering directly over the open front of the outlet box. Thereafter the wall covering overlapping the outlet box is trimmed using a sharp knife. In that process there is a very substantial risk that the knife may come into contact with the electrical wiring or with the exposed terminals of the electrical component resulting in a painful ~.
~i~
shock or worse to the wielder of the knife.
The present invention seeks to provide a simple and convenient yuide for use in trimming wall coverings in the regions of an outlet box which prevents a trimming tool from coming into contact with the wiring or terminals within the box.
According to one aspect of this invention, there is provided a guide for use in trimming wall coverings in the region of an outlet box which comprises a generally plate-like member defining a tool guiding edge of the shape of a portion of the wall covering to be trimmed said guiding edge being raised relative to the remainder of said plate-like member and means for engaging with the electrical component within the outlet box to locate the guide in a guiding position in which said guide substantially obturates the open front of the outlet box.
In use the guide is located in guiding position after the cover plate of the outlet box is removed, the wall covering is applied over the guide, trimmed with a knife applied to the guiding edge of the plate like member and thereafter the guide is removed and the cover plate once more secured to the outlet box.
In a prefered embodiment the plate like member has an opening formed to engage the sides of the electrical component.
Where the electrical component comprises a double socket outle-t the plate-like member may have a pair of openings to ~it about the sockets.
'73~
w It i5 desirable to provide guides which can be used both with outlets and with switches. To this end a pair of guides are provided one of which is shaped to cooperate with a switching outlet block while the other is shaped to cooperate with a power socket outlet box, the two guides having connecting means by which they may releasably secured, one to the other.
An embodiment of the invention is illustrated in the accompanying drawings in which:
Figure 1 is a perspective view showing an outlet box and guide.
Figure 2 is a perspective view from the front of the guide of Figure 1.
Figure 3 is a section on line III-III of Figure 2 and Figure 4 shows a pair of guide elements according to this invention.
The outlet box 10 i.s secured within an opening 12 of a gypsum board 14 by means of lugs 16 and 18. Mounted within the outlet box in conventional fashion is an electrical component 20 having a pair of power outlet sockets 22 and 24 each of which has a generally oval marginal portion 26.
The guide indicated generally at 30 comprises a plate-like number 32 having a rectangular tool guiding edge 32 which is slightly larger than the open front of the outlet box 10. The central portion of the member 32 is recessed as at 36 so that by pressing the wall covering into that recess the edge 34 is brought clearly into sight for fast accurate 73~6i trimming.
Within the central portion 36 of the plate like member are a pair of generallY oval openings 38 and 40 adapted to fit on the surfaces 26 of the sockets 22 and 24 to support the gulde in the tool guiding position.
On the rear face of the guide i.e. that ~ace presented ~o ~he interior of the outlet box are a pair of male elements 42 as can be seen in Figure 4 cooperate with fema~e elements 44 formed on the corresponding surface of a guide 30' which is shaped to cooperate with an outlet box housing a switch. By the matching elements 42 and 44 the set of guides constituted by guides 30 and 30' can be~snapped together and slipped into a pocket for use as and when required.
As an alternative arrangement, the openings 38, 40 may be formed as recesses in the rear surface of sufficient depth to accommodate the outlet 22, 24. In this manner the power outlets are also shielded from the knife blade. It is also possible for the edge 34 to be formed with a groove extending around the periphery of tbe guide 30. This groove is dimensioned to provide a positive guide for a knife blade and prefera~ly this has a flared cross section to provide a lead in for the knife blade.
Although the male and female elements 42, 44 have ~een a~
shown as interengaging plug ~ sockets it is of course possible ,., ~.
to utilise other forms of connection. E'or exan1ple a through hole could be provided instead of the socket 44 and could be made of keyhole shape to allow head of plug 42 tv pass through without deformation.
. .. . - .
This invention ls concerned with a guide for use in trimming wall paper and other wall coverings. It is particularly concerned with trimming such wall coverings around electrical outlets and switch receptacles.
A common wall construction comprises a frame of wooden or metal studs to which a covering of gypsum board is applied.
Electrical wiring is disposed within the frame and is connected to switches or power outlets at outlet boxes. The outlet boxes are generally rectangular sectioned, open fronted boxes of galvanized steel having lugs by which they are secured to the marginal edges of openings cut in the gypsum board so that the open fronts of the boxes are flush with the exposed surface of the gypsum board. The boxes have support elements by which an electrical component such as an outlet socket or a switch are mounted. The components have exposed terminals to which the electrical wiring is connected. The assembly is closed by a cover plate which is secured either to the outlet box or to the electrical component by one or more screws, the cover plate extending beyond the marginal edges of the opening cut in the gypsum board.
When applying a wall covering it is usual to remove the cover plate and apply the wall covering directly over the open front of the outlet box. Thereafter the wall covering overlapping the outlet box is trimmed using a sharp knife. In that process there is a very substantial risk that the knife may come into contact with the electrical wiring or with the exposed terminals of the electrical component resulting in a painful ~.
~i~
shock or worse to the wielder of the knife.
The present invention seeks to provide a simple and convenient yuide for use in trimming wall coverings in the regions of an outlet box which prevents a trimming tool from coming into contact with the wiring or terminals within the box.
According to one aspect of this invention, there is provided a guide for use in trimming wall coverings in the region of an outlet box which comprises a generally plate-like member defining a tool guiding edge of the shape of a portion of the wall covering to be trimmed said guiding edge being raised relative to the remainder of said plate-like member and means for engaging with the electrical component within the outlet box to locate the guide in a guiding position in which said guide substantially obturates the open front of the outlet box.
In use the guide is located in guiding position after the cover plate of the outlet box is removed, the wall covering is applied over the guide, trimmed with a knife applied to the guiding edge of the plate like member and thereafter the guide is removed and the cover plate once more secured to the outlet box.
In a prefered embodiment the plate like member has an opening formed to engage the sides of the electrical component.
Where the electrical component comprises a double socket outle-t the plate-like member may have a pair of openings to ~it about the sockets.
'73~
w It i5 desirable to provide guides which can be used both with outlets and with switches. To this end a pair of guides are provided one of which is shaped to cooperate with a switching outlet block while the other is shaped to cooperate with a power socket outlet box, the two guides having connecting means by which they may releasably secured, one to the other.
An embodiment of the invention is illustrated in the accompanying drawings in which:
Figure 1 is a perspective view showing an outlet box and guide.
Figure 2 is a perspective view from the front of the guide of Figure 1.
Figure 3 is a section on line III-III of Figure 2 and Figure 4 shows a pair of guide elements according to this invention.
The outlet box 10 i.s secured within an opening 12 of a gypsum board 14 by means of lugs 16 and 18. Mounted within the outlet box in conventional fashion is an electrical component 20 having a pair of power outlet sockets 22 and 24 each of which has a generally oval marginal portion 26.
The guide indicated generally at 30 comprises a plate-like number 32 having a rectangular tool guiding edge 32 which is slightly larger than the open front of the outlet box 10. The central portion of the member 32 is recessed as at 36 so that by pressing the wall covering into that recess the edge 34 is brought clearly into sight for fast accurate 73~6i trimming.
Within the central portion 36 of the plate like member are a pair of generallY oval openings 38 and 40 adapted to fit on the surfaces 26 of the sockets 22 and 24 to support the gulde in the tool guiding position.
On the rear face of the guide i.e. that ~ace presented ~o ~he interior of the outlet box are a pair of male elements 42 as can be seen in Figure 4 cooperate with fema~e elements 44 formed on the corresponding surface of a guide 30' which is shaped to cooperate with an outlet box housing a switch. By the matching elements 42 and 44 the set of guides constituted by guides 30 and 30' can be~snapped together and slipped into a pocket for use as and when required.
As an alternative arrangement, the openings 38, 40 may be formed as recesses in the rear surface of sufficient depth to accommodate the outlet 22, 24. In this manner the power outlets are also shielded from the knife blade. It is also possible for the edge 34 to be formed with a groove extending around the periphery of tbe guide 30. This groove is dimensioned to provide a positive guide for a knife blade and prefera~ly this has a flared cross section to provide a lead in for the knife blade.
Although the male and female elements 42, 44 have ~een a~
shown as interengaging plug ~ sockets it is of course possible ,., ~.
to utilise other forms of connection. E'or exan1ple a through hole could be provided instead of the socket 44 and could be made of keyhole shape to allow head of plug 42 tv pass through without deformation.
. .. . - .
Claims (7)
OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A guide for use in trimming wall coverings in the region of an outlet box containing an electrical component and having an open front, comprising a generally plate-like member defining a tool guiding edge of the shape of a portion of the wall covering to be trimmed, said guiding edge being raised relative to the remainder of said plate-like member and means for engagement with the electrical component within the outlet box to locate the guide in a guiding position in which said guide obturates the open front of the outlet box.
2. A guide as claimed in claim 1 wherein said guiding edge comprises a marginal edge of said plate-like member.
3. A guide as claimed in claim 2 wherein said means for engagement cooperate with the electrical component and comprise marginal edges of an opening in said plate-like member for engagement with said electrical component.
4. A guide as claimed in claim 3 wherein the perimeter of said tool guiding edge corresponds to the perimeter of the open front of said outlet box.
5. A guide as claimed in any of claims 1 through 3 wherein said plate-like member has connecting means for cooperation with matching connecting means of another guide for releasably securing said plate-like member to said other guide.
6. A guide as claimed in claim 4 wherein said plate-like member has connecting means for cooperation with matching connecting means of another guide for releasably securing said plate-like member to said other guide.
7. A set of guides for use in trimming wall coverings in the regions of outlet boxes containing differently shaped electrical components and having open fronts, each guide comprising a generally plate-like member defining a tool guiding edge of the shape of a portion of the wall covering to be trimmed said tool guiding edge being raised relative to the remainder of said plate-like member, one of said guides having means for engagement with an electrical component of one shape within an outlet box to locate the guide in a guiding position in which said guide substantially obturates the open front of an outlet box and the other of the guides having means for engagement with a differently shaped electrical component to locate the guide in a guiding position in which said other guide substantially obturates the open front of an outlet box, said guides having matching connecting means by which they may be releasably secured one to the other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000424052A CA1197376A (en) | 1983-03-21 | 1983-03-21 | Guide for trimming wall coverings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000424052A CA1197376A (en) | 1983-03-21 | 1983-03-21 | Guide for trimming wall coverings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1197376A true CA1197376A (en) | 1985-12-03 |
Family
ID=4124833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000424052A Expired CA1197376A (en) | 1983-03-21 | 1983-03-21 | Guide for trimming wall coverings |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1197376A (en) |
-
1983
- 1983-03-21 CA CA000424052A patent/CA1197376A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |