GB2552668A - SDS Plus Shank Converter - Google Patents

SDS Plus Shank Converter Download PDF

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Publication number
GB2552668A
GB2552668A GB1613272.2A GB201613272A GB2552668A GB 2552668 A GB2552668 A GB 2552668A GB 201613272 A GB201613272 A GB 201613272A GB 2552668 A GB2552668 A GB 2552668A
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GB
United Kingdom
Prior art keywords
drill bit
shank
item
sleeve
sds plus
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Withdrawn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
GB1613272.2A
Other versions
GB201613272D0 (en
Inventor
Lygate William
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 GB1613272.2A priority Critical patent/GB2552668A/en
Publication of GB201613272D0 publication Critical patent/GB201613272D0/en
Publication of GB2552668A publication Critical patent/GB2552668A/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/005—Cylindrical shanks of tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/005—Attachments or adapters placed between tool and hammer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D17/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D17/02—Percussive tool bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2231/00—Details of chucks, toolholder shanks or tool shanks
    • B23B2231/04—Adapters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/026—Bushings, e.g. adapter sleeves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
    • B25D2217/0003—Details of shafts of percussive tool bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

An adapter, or collar that engages with the end of a double grooved hammer drill bit, providing it with a cylindrical outer surface suitable for use with a three-jawed chuck. The adaptor can be manufactured in Mild Steel or ABS Plastic. The Steel adapter has a slot along its length to allow the sleeve to flex. At least one protrusion on the inner surface of the adapter engages with one of the slots on the outside of the double grooved hammer drill bit.

Description

(54) Title of the Invention: SDS Plus Shank Converter
Abstract Title: Adapter sleeve for double grooved hammer drill bit (57) An adapter, or collar that engages with the end of a double grooved hammer drill bit, providing it with a cylindrical outer surface suitable for use with a three-jawed chuck. The adaptor can be manufactured in Mild Steel or ABS Plastic. The Steel adapter has a slot along its length to allow the sleeve to flex. At least one protrusion on the inner surface of the adapter engages with one of the slots on the outside of the double grooved hammer drill bit.
Figure GB2552668A_D0001
Key /4
Item 2
Figure GB2552668A_D0002
Figure 1
Figure GB2552668A_D0003
Key
Figure 2
2/4
Item 1 Item 3 / / 1
Figure GB2552668A_D0004
Figure 3
Figure GB2552668A_D0005
3/4
Figure GB2552668A_D0006
Figure GB2552668A_D0007
Φ
Figure GB2552668A_D0008
Figure GB2552668A_D0009
'-Chamfered Sleeve End
View 2
Figure GB2552668A_D0010
Figure GB2552668A_D0011
View 3
Figure 5
Figure GB2552668A_D0012
View Section A-A
Figure GB2552668A_D0013
Figure 6
4/4
Figure GB2552668A_D0014
Figure 9
Intellectual
Property
Office
Application No. GB1613272.2
RTM
Date : 17 January 2017
The following terms are registered trade marks and should be read as such wherever they occur in this document:
SDS Plus
Intellectual Property Office is an operating name of the Patent Office www.gov.uk/ipo
SDS Plus Shank Converter
This invention relates to a SDS (Special Direct System/Slotted Drive System) Drill Bit Shank being converted to a Straight Shank Drill Bit by use of a SDS Plus Shank Converter Sleeve.
During drilling operations in masonry a hand held SDS Plus Drill Gun uses SDS Plus Drill Bits to produce a hole. A hand held battery drill gun with hammer action also produces a hole in Masonry and produces holes in wood and metal also, but uses a straight shank drill bit. The two drill bit's types of shanks are not compatible with each other in their holding chucks. The SDS Plus Shank Converter Sleeve (invention) acts as an interface between the SDS Plus Drill Bit Shank and the Straight Shank Drill Bit Chuck allowing compatibility.
To overcome the incompatibility of not being able to Insert an SDS Plus Drill Bit Shank directly into a three-pawl type Straight Shank Chuck, the SDS Plus Shank Converter Sleeve slides over the SDS Plus Drill Bit Shank and converts the drill bit to a Straight Shank type.
The user will be able to carry one type of Drill Bit (SDS Plus Shank) for drilling in Masonry and insert these drill bits into a hand held Battery Drill Gun with a standard three-pawl chuck for use with Straight Shank Drill Bits.
The SDS Plus Shank Converter Sleeve is designed to be small and lightweight taking minimum space in the toolbox, with simplicity of inserting and extracting over the SDS Drill Bit and into the three-pawl Straight Shank Chuck. The Sleeve has the option of being left attached to the SDS Plus Drill Bit allowing drill bits that are used frequently to have their own Converter Sleeve resulting in fast insertion and removal of the Sleeve and Drill Bit assembly into a standard three-pawl chuck.
The Sleeve is intended for use by both amateur and professional users. The SDS Plus Shank Converter Sleeve is compatible for use with a battery powered hammer action drill gun, but can be also be used with a hand held mains powered electric drill gun.
The invention will give a direct conversion from SDS Plus Drill Bit Shank to Straight Shank Drill Bit allowing flexibility of the user to carry only one set of drill bits up to the Drill Bit diameter of the design of the three-pawl Straight Shank Chuck being inserted into. The SDS Plus Shank Converter Sleeve is small in diameter and length, and lightweight.
An example of the invention will now be described by referring to the accompanying Figures:
Figure 1 shows an SDS Plus Drill Bit (Item 1) with slotted shank, trying to align with a three-pawl (jaw) chuck (Item 2) that is designed for holding Straight Shank Drill Bits. At least one pawl will align with a slot from the SDS Plus Drill Bit making the holding chuck and drill bit incompatible.
Figure 2 shows the SDS Plus Shank Converter Sleeve invention (Item 3).
Figure 3 shows the SDS Plus Shank Converter Sleeve invention (Item 3) attached to the Slotted Shank of the SDS Plus Drill Bit (Item 1) according to the invention.
Figure 4 shows the SDS Plus Shank Converter Sleeve invention (Item 3) along with the SDS Plus Drill Bit, both inserted into the three-pawl chuck (Item 2) designed for Straight Shank Drill Bits.
Figure 5 shows the end user assembly instructions for the Mild Steel model.
a. Reference View 1; align SDS Plus Drill Bit (Item 1) with SDS Plus Shank Converter Sleeve invention (Item 3), observe orientation of chamfered end of Converter Sleeve.
b. Reference View 2; push Converter Sleeve (Item 3) over Drill Bit Shank (Item 1) until flush with base of Drill Bit Shank (Item 1), observe chamfered Converter Sleeve end (Item 3) orientates to base of Drill Bit Shank (Item 1).
c. Reference Views 3, 4 & View Section A-A; insert Drill Bit (Item 1) and Converter Sleeve (Item 3) as an assembly into the three-pawl Chuck (Item 2) shown in Views 3 & 4. Avoid positioning the slot on the
Converter Sleeve directly over a Chuck pawl (jaw) as shown in View 4. Push home until Drill Bit (Item 1) and Converter Sleeve (Item 3) assembly stops against the internal Chuck pawl Positioner Screw (Item 5) as in View Section A-A. With Drill Bit (Item 1) and Sleeve (Item 3) assembly inserted in Chuck (Item 2), tighten Chuck.
Figure 2 shows the SDS Plus Shank Converter Sleeve invention (Item 3) where two key's are formed to restrain the rotational degree of freedom between the SDS Plus Drill Bit at Figure 3 (Item 1) and Sleeve Figure 2 (Item 3). A slot is also formed on the Converter Sleeve at Figure 2 allowing flexibility on manufacturing variances of the diameter on the SDS Plus Drill Bit Shank, and aiding Converter Sleeve ease of insertion or retraction from the SDS Plus Drill Bit Shank. Axial and radial degrees of freedom are restrained as would the standard design of the threepawl Chuck Figure 1 (Item 2) was intended for.
Two types of Converter Sleeve prototypes were manufactured to test the invention, one in Mild Steel and another in ABS Plastic (acrylonitrile butadiene styrene) Figure 6.
a. The Mild Steel version was manufactured and used on an electrical hand held drilling gun and showed no signs of deterioration after near continuous use over fifty holes at 10mm diameter in masonry, with the same Converter Sleeve additionally drilling 10 holes at 13mm and still showing no obvious wear. The Converter Sleeve invention also performed the same on a hand held battery operated Drill Gun. Both high and low speeds were used on both the Drill Gun's with no obvious wear effects on the Converter Sleeve.
b. The ABS version was manufactured using a 3D Printer and showed excessive wear when drilling above 6mm diameter holes in masonry, ten holes of various sizes above this diameter were recorded from the same Converter Sleeve. Below 6mm diameter holes the yield was 40 holes before a Converter Sleeve replacement was required.
No Sleeve Slot was manufactured on the ABS Converter Sleeve model (Figure 6) as the material flex's adequately to accommodate manufacturer's variations in SDS Plus Drill Bit Shank diameters. This also eradicates avoiding positioning the Sleeve Slot on the Converter Sleeve directly over a Chuck pawl (jaw) from the Mild Steel version as shown in Figure 5 (View 4).
The dimensions of the SDS Plus Shank Converter Sleeve invention are small at 32mm long and 12.7mm diameter and is of hollow tube section apart from the two keys, making the invention lightweight at approximately 14gms for the Mild Steel Version and approximately 2gms for the ABS Version.

Claims (1)

  1. Claims
    1. A Sleeve that converts an SDS Plus Drill Bit to be accepted into a standard three-pawl Chuck used by Straight Shank Drill Bits.
    Intellectual
    Property
    Office
    Application No: GB1613272.2 Examiner: Mr Ralph Plowman
GB1613272.2A 2016-08-02 2016-08-02 SDS Plus Shank Converter Withdrawn GB2552668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1613272.2A GB2552668A (en) 2016-08-02 2016-08-02 SDS Plus Shank Converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1613272.2A GB2552668A (en) 2016-08-02 2016-08-02 SDS Plus Shank Converter

Publications (2)

Publication Number Publication Date
GB201613272D0 GB201613272D0 (en) 2016-09-14
GB2552668A true GB2552668A (en) 2018-02-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
GB1613272.2A Withdrawn GB2552668A (en) 2016-08-02 2016-08-02 SDS Plus Shank Converter

Country Status (1)

Country Link
GB (1) GB2552668A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434028A1 (en) * 1984-09-15 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Adaptor for receiving double-grooved hammer drills in a toolholder, designed for triple-grooved hammer drills, of a hammer-drilling machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434028A1 (en) * 1984-09-15 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Adaptor for receiving double-grooved hammer drills in a toolholder, designed for triple-grooved hammer drills, of a hammer-drilling machine

Also Published As

Publication number Publication date
GB201613272D0 (en) 2016-09-14

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