GB2218367A - Cutting boards - Google Patents

Cutting boards Download PDF

Info

Publication number
GB2218367A
GB2218367A GB8811499A GB8811499A GB2218367A GB 2218367 A GB2218367 A GB 2218367A GB 8811499 A GB8811499 A GB 8811499A GB 8811499 A GB8811499 A GB 8811499A GB 2218367 A GB2218367 A GB 2218367A
Authority
GB
United Kingdom
Prior art keywords
cutting
base
cutting board
blade
blades
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Withdrawn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
GB8811499A
Other versions
GB8811499D0 (en
Inventor
Brian Robert Brookes
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.)
CARLTON PRESS KNIVES Ltd
Original Assignee
CARLTON PRESS KNIVES Ltd
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 CARLTON PRESS KNIVES Ltd filed Critical CARLTON PRESS KNIVES Ltd
Priority to GB8811499A priority Critical patent/GB2218367A/en
Publication of GB8811499D0 publication Critical patent/GB8811499D0/en
Publication of GB2218367A publication Critical patent/GB2218367A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4463—Methods and devices for rule setting, fixation, preparing cutting dies

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacture Of Wood Veneers (AREA)

Abstract

A cutting board 1, for cutting out shapes from a sheet material by pressing, includes sharpened edge cutting blade 2 secured to a base 7 by means of a series of tongues 3, extending from the blade 2 into slots in the base 7. The blade 2 consists of a number of members 21, 22, 23 and 24 jointed at 4 by means of electric welds with microflow welds on the cutting edges. The microflow welds have a Rockwell hardness of 38. The blade members of steel, are at least two mms. thick. <IMAGE>

Description

TITLE Cutting Boards DESCRIPTION The invention relates to cutting boards for cutting-out shapes from sheet material by pressing. Such boards are used for cutting-out, for example, shoe uppers from sheets of leather or plastics material, and labels or envelopes from paper.
The use of cutting boards enables a large number of material shapes to be produced from a sheet of material at each pressing. Cutting boards generally consist of a number of cutting blades each of which is formed to a required shape and set into a base of the board. The shapes are cut-out of the sheet material by applying a pressure of 20 to 40 tons and pressing the material against the cutting blades.
The cutting blades generally consist of hard steel members of 0.75mm thickness, often known as printers rule, which are formed into the required shapes by bending and/or jointing several members together Steel of this type, however, cannot be welded, and the joints between the members have to be sealed by alternative means having much less tensile strength than a weld. Consequently, the joints between the members act as focal points for stress, and sustained use of the cutting board can cause the joints to splay. The splaying ,of the joint renders the blade useless the board has to be taken out of service, and the defective blade repaired or replaced before pressing can continue.
Cutting blades have also been constructed from thicker steel members of, for example, 2.5mm thickness, but these blades tend to be used in a 'free-standing' capacity and are.not attached to a base. Each of the blades has.to be manually arranged upon the sheet material before pressing can take place.
The invention provides a cutting board having a base and a number of cutting blades secured thereto for cutting-out shapes from a sheet material by pressing, the blades being secured to the base by means of tongues extending from the blade thrbugh slots in the base, and the blades each comprising at least one member jointed by means of an electric weld with a microflow weld on the cutting edge, the microflow weld having a Rockwell hardness of at least 38.
The blades are preferably steel members of at least 2mm thickness having a sharpened cutting edge The blades are preferably from 28.75mm to 50mm thick. The base is preferably plywood of at least 15mm thickness with a had wood exterior, such as birch, and may have a U section metal channel encasing the edges.
Figure 1 is a top view of a cutting board according to the invention; and Figure 2 is a side view similar to a part of the cutting board of Figure 1.
With reference to Figure 1, a cutting board indicated generally at 1 has a base 7 and secured thereto a blade 2.
The blade 2 is secured to the base 7 by means of tongues 3 which fit into and pass through slots in the base 7. The blade 7 consists of, for example, four members 21, 22, 23 and 24. The four members 21, 22, 23 and 24 are connected together at joipts 4 by electric welds with microflow welds on the cutting edge extending along the joint a distance of about 2mm.
With reference to Figure 2, the base 7 of the cutting board indicated generally at 1 is of plywood which consists of laminations 5. The tongues 3 are cut on the blade 2 by stamping and fit into slots 6 in the base 7 The blade 2 has a cutting edge 8

Claims (7)

  1. CLAIMS 1. A cutting board having a base and a number of sharpened edge cutting blades secured thereto for cutting out shapes from a sheet material by pressing, the blades being secured to the base by means of tongues extending from the blade through slots in the base, and the blades each comprising at least one member jointed by means of an electric weld with a microflow weld on the cutting edge, the microflow weld having a Rockwell hardness of at least 38.
  2. 2. A cutting board according to claim 1 wherein each member is of steel at least 2mm thickness.
  3. 3. A cutting board according to claim 1 or claim 2 wherein each member is from 28.75mm to 50mm wide.
  4. 4. A cutting board according to any of claims 1 to 3 wherein the base is of plywood at least I5mm thickness.
  5. 5. A cutting board according to claim 4 wherein the base has hard wood exterior layers.
  6. 6. A cutting board according to any preceding claim wherein the edge of the base is encased by a U section metal channel.
  7. 7. A cutting board substantially as herein described with reference to figures 1 and 2.
GB8811499A 1988-05-14 1988-05-14 Cutting boards Withdrawn GB2218367A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8811499A GB2218367A (en) 1988-05-14 1988-05-14 Cutting boards

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8811499A GB2218367A (en) 1988-05-14 1988-05-14 Cutting boards

Publications (2)

Publication Number Publication Date
GB8811499D0 GB8811499D0 (en) 1988-06-15
GB2218367A true GB2218367A (en) 1989-11-15

Family

ID=10636949

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8811499A Withdrawn GB2218367A (en) 1988-05-14 1988-05-14 Cutting boards

Country Status (1)

Country Link
GB (1) GB2218367A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703047A3 (en) * 1994-09-21 1996-10-23 Koenig & Bauer Albert Ag Perforating device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0703047A3 (en) * 1994-09-21 1996-10-23 Koenig & Bauer Albert Ag Perforating device
US5791219A (en) * 1994-09-21 1998-08-11 Koenig & Bauer-Albert Aktiengesellschaft Signature perforating device

Also Published As

Publication number Publication date
GB8811499D0 (en) 1988-06-15

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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)