GB2102313A - Lever device for attachment to a portable electric drill - Google Patents

Lever device for attachment to a portable electric drill Download PDF

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Publication number
GB2102313A
GB2102313A GB08122904A GB8122904A GB2102313A GB 2102313 A GB2102313 A GB 2102313A GB 08122904 A GB08122904 A GB 08122904A GB 8122904 A GB8122904 A GB 8122904A GB 2102313 A GB2102313 A GB 2102313A
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GB
United Kingdom
Prior art keywords
lever
drill
lever member
workpiece
portable
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.)
Withdrawn
Application number
GB08122904A
Inventor
Brian Daniel Munday
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB08122904A priority Critical patent/GB2102313A/en
Publication of GB2102313A publication Critical patent/GB2102313A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
    • B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
    • B25H1/0057—Devices for securing hand tools to the work

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

A lever device 10 for use with a portable electric drill 18 for use in applying a force to the drill 18 to move it relative to a workpiece 21 the device 10 consisting of a U-shaped lever member 11 whose end 16 is curved so as to engage a workpiece 21 and form a fulcrum about which the lever 11 can be rocked, and lever members 12 which are pivotably connected at 13 to the lever 11 and connected by a bolt 17 to the drill 18. The device 10 enables a force to be applied to the drill 18 where the drill 18 is located at working positions where the operator cannot readily apply a manual force to the drill 18. <IMAGE>

Description

SPECIFICATION Lever device for attachment to a portable electric drill This invention relates to a lever device for use with a portable electric drill, the lever device being used to apply a force to the drill to move it relative to a workpiece.
When using a portable electric drill to drill holes in a workpiece located in a position where the operator can not readily apply a manual force to the drill to urge it towards the workpiece, the operator soon becomes fatigued and the drilling of such holes becomes a tiresome and time consuming operation. This is particularly the case where a portable electric drill is used to drill holes through beams or girders in situ in a building for the purpose of passing cables or pipes through the beams or girders.
According to the present invention there is provided a lever device for attachment to a portable electric drill to enable a force to be applied the drill to move it relative to a workpiece, comprising a first lever member provided at one end with means for engaging a workpiece, said means forming a fulcrum about which the lever member can be pivoted relative to the workpiece, and a second lever member having one end pivotally connected to the first lever member and its other end being provided with means for pivotally connecting it to the portable drill, said second lever member in use transmitting force from the first lever to the drill upon pivoting of the first lever member about said fulcrum.
An embodiment of the invention will now be described by way of an example, with reference to the accompanying drawing, in which: Figure 1 is a side elevation of a lever device according to the present invention attached to a portable drill and positioned for drilling a workpiece located below the operator, Figure 2 is a view of the lever device taken in the direction of arrow II indicated on Figure 1, and Figure 3 is a side view of the lever device according to the present invention positioned for drilling a workpiece located above the operator.
The lever device is generally indicated at 10 and comprises a lever member 11 which is substantially U-shaped and a pair of lever members 1 2 each of which is pivotably connected at 13 to one of the limbs of the lever member 11.
Each limb of the lever member 11 is provided with a row of holes 14 so that the position of pivot connection 1 3 can be adjusted along the limb. The bridge portion 1 5 of the lever member 11 forms a handle which can be gripped by the operator. The free end of each limb of the lever member 11 is provided with a portion 1 6 which at its outer end is curved and whose outer end is bevelled and/or provided with teeth to enable it to bite into a timber workpiece.
Each lever member 12 is curved in side elevation and at its free end is provided with a transverse hole in which is received a bolt 1 7 which extends through a bore in a portable electric drill 8. The bore in the portable drill 18 is the bore which is normally used to fix a handle to the portable drill 18. If a portable drill 18 is used which is of the type not having a handle then the portable drill 1 8 will be provided with an attachment to enable the free end of each lever 12 to be connected to the portable drill 1 8.
A spacer member 19 extends between the limbs of the lever member 11 and a spacer member 20 extends between the lever members 12. It will be appreciated that the lever members 1 2 may also comprise a single substantially U-shaped lever member.
When the lever device 10 and drill 1 8 is used for drilling holes in a workpiece located below the operator, such as in a wooden floor supporting beam 21 to which access is gained by removing a floor board, then the device 10 is positioned as shown in Figure 1 with the edge of the portions 1 6 engaged with the side of the beam 21 remote from the side from which drilling is to take place.
The operator will steady the drill 1 8 with one hand and grip the bridge portion 1 5 with the other hand and pivot the lever member 11 in a clockwise direction as viewed in Figure 2 about the end of portion 1 6 which acts as a fulcrum. The lever members 12 will thereby transfer the force to the drill 1 8 to move it in a direction towards the beam 21 during drilling.
When the lever device 10 and drill 18 is used for drilling holes in a workpiece located above the operator, such as rolled steel joist 22 shown in Figure 3, the device 10 is positioned so that the portions 1 6 engage the lower flange of the joist 22 at the side remote from that from which drilling is to take place. The operator steadies the drill;18 with one hand and pivots the lever member 11 with the other hand in a clockwise direction as viewed in Figure 3.
It will be appreciated that the lever member 11 may comprise a single lever arm and that only a single lever 1 2 need be provided.
1. A lever device for attachment to a portable electric drill to enable a force to be applied to the drill to move it relative to a workpiece, comprising a first lever member provided at one end with means for engaging a workpiece, said means forming a fulcrum about which the lever member can be pivoted relative to the workpiece, and a second lever member having one end pivotally connected to the first lever member and its other end being provided with means for pivotally connecting it to the portable drill, said second lever in use of the device transmitting force from the first lever to the drill upon pivoting of the first lever member about said fulcrum.
2. A lever device as claimed in claim 1, in which said means provided at said one end of the first lever member comprises an end portion of the lever member which is curved, the outer end of said portion being bevelled and/or provided with teeth.
3. A lever device as claimed in claim 1 or claim
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (7)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Lever device for attachment to a portable electric drill This invention relates to a lever device for use with a portable electric drill, the lever device being used to apply a force to the drill to move it relative to a workpiece. When using a portable electric drill to drill holes in a workpiece located in a position where the operator can not readily apply a manual force to the drill to urge it towards the workpiece, the operator soon becomes fatigued and the drilling of such holes becomes a tiresome and time consuming operation. This is particularly the case where a portable electric drill is used to drill holes through beams or girders in situ in a building for the purpose of passing cables or pipes through the beams or girders. According to the present invention there is provided a lever device for attachment to a portable electric drill to enable a force to be applied the drill to move it relative to a workpiece, comprising a first lever member provided at one end with means for engaging a workpiece, said means forming a fulcrum about which the lever member can be pivoted relative to the workpiece, and a second lever member having one end pivotally connected to the first lever member and its other end being provided with means for pivotally connecting it to the portable drill, said second lever member in use transmitting force from the first lever to the drill upon pivoting of the first lever member about said fulcrum. An embodiment of the invention will now be described by way of an example, with reference to the accompanying drawing, in which: Figure 1 is a side elevation of a lever device according to the present invention attached to a portable drill and positioned for drilling a workpiece located below the operator, Figure 2 is a view of the lever device taken in the direction of arrow II indicated on Figure 1, and Figure 3 is a side view of the lever device according to the present invention positioned for drilling a workpiece located above the operator. The lever device is generally indicated at 10 and comprises a lever member 11 which is substantially U-shaped and a pair of lever members 1 2 each of which is pivotably connected at 13 to one of the limbs of the lever member 11. Each limb of the lever member 11 is provided with a row of holes 14 so that the position of pivot connection 1 3 can be adjusted along the limb. The bridge portion 1 5 of the lever member 11 forms a handle which can be gripped by the operator. The free end of each limb of the lever member 11 is provided with a portion 1 6 which at its outer end is curved and whose outer end is bevelled and/or provided with teeth to enable it to bite into a timber workpiece. Each lever member 12 is curved in side elevation and at its free end is provided with a transverse hole in which is received a bolt 1 7 which extends through a bore in a portable electric drill 8. The bore in the portable drill 18 is the bore which is normally used to fix a handle to the portable drill 18. If a portable drill 18 is used which is of the type not having a handle then the portable drill 1 8 will be provided with an attachment to enable the free end of each lever 12 to be connected to the portable drill 1 8. A spacer member 19 extends between the limbs of the lever member 11 and a spacer member 20 extends between the lever members 12. It will be appreciated that the lever members 1 2 may also comprise a single substantially U-shaped lever member. When the lever device 10 and drill 1 8 is used for drilling holes in a workpiece located below the operator, such as in a wooden floor supporting beam 21 to which access is gained by removing a floor board, then the device 10 is positioned as shown in Figure 1 with the edge of the portions 1 6 engaged with the side of the beam 21 remote from the side from which drilling is to take place. The operator will steady the drill 1 8 with one hand and grip the bridge portion 1 5 with the other hand and pivot the lever member 11 in a clockwise direction as viewed in Figure 2 about the end of portion 1 6 which acts as a fulcrum. The lever members 12 will thereby transfer the force to the drill 1 8 to move it in a direction towards the beam 21 during drilling. When the lever device 10 and drill 18 is used for drilling holes in a workpiece located above the operator, such as rolled steel joist 22 shown in Figure 3, the device 10 is positioned so that the portions 1 6 engage the lower flange of the joist 22 at the side remote from that from which drilling is to take place. The operator steadies the drill;18 with one hand and pivots the lever member 11 with the other hand in a clockwise direction as viewed in Figure 3. It will be appreciated that the lever member 11 may comprise a single lever arm and that only a single lever 1 2 need be provided. CLAIMS
1. A lever device for attachment to a portable electric drill to enable a force to be applied to the drill to move it relative to a workpiece, comprising a first lever member provided at one end with means for engaging a workpiece, said means forming a fulcrum about which the lever member can be pivoted relative to the workpiece, and a second lever member having one end pivotally connected to the first lever member and its other end being provided with means for pivotally connecting it to the portable drill, said second lever in use of the device transmitting force from the first lever to the drill upon pivoting of the first lever member about said fulcrum.
2. A lever device as claimed in claim 1, in which said means provided at said one end of the first lever member comprises an end portion of the lever member which is curved, the outer end of said portion being bevelled and/or provided with teeth.
3. A lever device as claimed in claim 1 or claim 2, in which said first lever member is substantially U-shaped and a pair of second lever members are pivotably connected to the limbs of the first lever member.
4. A lever device as claimed in any preceding claim, in which said means for connecting the second lever member to a drill comprises a bolt which extends through a bore in the drill.
5. A lever device as claimed in any preceding claim, in which the second lever member can be connected to the first lever member at any one of a plurality of positions.
6. A lever device for attachment to a portable electric drill to enable a force to be applied to the drill to move it relative to a workpiece substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.
7. A portable electric drill having a lever device as claimed in any preceding claim attached thereto.
GB08122904A 1981-07-24 1981-07-24 Lever device for attachment to a portable electric drill Withdrawn GB2102313A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08122904A GB2102313A (en) 1981-07-24 1981-07-24 Lever device for attachment to a portable electric drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08122904A GB2102313A (en) 1981-07-24 1981-07-24 Lever device for attachment to a portable electric drill

Publications (1)

Publication Number Publication Date
GB2102313A true GB2102313A (en) 1983-02-02

Family

ID=10523476

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08122904A Withdrawn GB2102313A (en) 1981-07-24 1981-07-24 Lever device for attachment to a portable electric drill

Country Status (1)

Country Link
GB (1) GB2102313A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004815A1 (en) * 1989-10-03 1991-04-18 The University Of Birmingham Drilling jig
WO1991013728A1 (en) * 1990-03-13 1991-09-19 Gordan Henry Turner Underfloor drilling jig and frame
US7140813B2 (en) * 2003-07-15 2006-11-28 Tucker Bradley J Line boring machine
WO2007134604A1 (en) * 2006-05-22 2007-11-29 Mogens Vilhelmsen Boring system for items with various geometries
US7641424B1 (en) 2004-08-24 2010-01-05 Allen Ip, Incorporated Non-pneumatic clamp and drilling system
USRE44289E1 (en) 2004-06-23 2013-06-11 Allen Ip Inc. Pocket hole drilling machine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991004815A1 (en) * 1989-10-03 1991-04-18 The University Of Birmingham Drilling jig
WO1991013728A1 (en) * 1990-03-13 1991-09-19 Gordan Henry Turner Underfloor drilling jig and frame
US5348428A (en) * 1990-03-13 1994-09-20 Turner Gordon H Underfloor drilling jig and frame
US7140813B2 (en) * 2003-07-15 2006-11-28 Tucker Bradley J Line boring machine
USRE44289E1 (en) 2004-06-23 2013-06-11 Allen Ip Inc. Pocket hole drilling machine
US7641424B1 (en) 2004-08-24 2010-01-05 Allen Ip, Incorporated Non-pneumatic clamp and drilling system
US7811033B2 (en) 2004-08-24 2010-10-12 Allen Ip, Incorporated Tool with remote switch
WO2007134604A1 (en) * 2006-05-22 2007-11-29 Mogens Vilhelmsen Boring system for items with various geometries

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)