US3699654A - Pocketknife - Google Patents

Pocketknife Download PDF

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Publication number
US3699654A
US3699654A US105863A US3699654DA US3699654A US 3699654 A US3699654 A US 3699654A US 105863 A US105863 A US 105863A US 3699654D A US3699654D A US 3699654DA US 3699654 A US3699654 A US 3699654A
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US
United States
Prior art keywords
handle
knife blade
sheet
slits
shaped
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 - Lifetime
Application number
US105863A
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English (en)
Inventor
Ernst Joachim Gerling
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Individual
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Individual
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Filing date
Publication date
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Publication of US3699654A publication Critical patent/US3699654A/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B1/00—Hand knives with adjustable blade; Pocket knives
    • B26B1/02—Hand knives with adjustable blade; Pocket knives with pivoted blade

Definitions

  • SHEET 2 or 2 lnren far- ERNST JOACHIM GEPLLING MQQ gf/1 Attorney 1 POCKETKNIFE This invention relates to a pocketknife comprising a handle or haft and a knife blade which can be folded into and unfolded out of the handle or haft.
  • a pocketknife comprising a handle or haft, and a knife blade which can be folded into, and unfolded out of the handle or haft.
  • The, handle or haft is formed out of sheet material which has been bent to receive the knife blade between its two sides when the blade is folded.
  • FIG. 1 shows the handle of the pocketknife inaccordance with the invention before bending, with the two sides of the handle lying in approximately a single plane;
  • FIG. 2 shows the pocketknife with the handle of FIG. 1 cut away
  • FIG. 3 is a cross section through the pocketknife of FIG. 2 with the hoop positioned over the blade;
  • FIG. 4 is aside view of the pocketknife of FIGS. 1 to 3 with the knife blade open;
  • FIG. 5 is a side view of a modified pocketknife in accordance with the invention before the sheet material has been bent;
  • FIG. 6 shows the pocketknife in accordance with the invention with portions of the sides of the handle pressed inwards, the handle being illustrated in cutaway form;
  • FIGS. 7 and 8 show a modified pocketknife in accordance with the invention with curved slits in its open and closed conditions.
  • the pocketknife has a'boxshaped handle or haft l, which is produced by bending sheet material and carriers one or more knife blades 2.
  • Slits 3 are provided in the region of the back portion or fold of the handle, which is almost semicircular in shape, the slits being on opposite sides of the handle. These slits may extend in a straight line, as shown in FIGS. 1, 2, 4, 5 and 6 of the drawings they form at least one spring 4 which secures the respective knife blade 2 in its closed position and, if necessary, also in its open position.
  • Box-shaped handle 1 may consist of any desired flexible or resilient material, for example strip steel.
  • One or more rivets 8 which hold the sides of the handle blades.
  • Springs 4 may also, for example, extend along curved lines as can be seen from FIGS. 7 and 8. This is particularly effective in securing knife blade 2 in its open and closed positions, since spring 4 becomes progressively stiffer from its free end to its fixed end as the distance between the slit and the fold increases.
  • the straight slits in FIGS. 1, 2, and 4-6 are uniformly spaced from the fold and could also be slanted to obtain a similar progressive increase in the distance.
  • FIGS. 7 and 8 designates rivets and the numbers-'9 and l0'designate holes. It is also possible, for exarnple,.for'two springs 4 to be provided side by side. The springs may be wider than the knife blade.
  • Slits 3 may either each extend from a position intermediate the handle ends to one end of the handle, as shown in FIGS. 1, 2, 5 and 6, or, as can be seen in FIGS. 4, 7 and 8,.may form an angle at the end or be closed upon themselves. Each have their ends intermediate the handle ends, so that a reliable and particularly resistantlocation of the knife blade, which bears with its heel 5 against the handle, is obtained when the knife is open. If the spring 4 is constructed to be wider than the blade, the side of handle 1 may advantageously be pressed inwards in the vicinity of hole 9 in order to provide the blade with a lateral guide. In this and similar cases, a covering 6 of any desired material may be provided. Covering 6 also helps to improve the appearance.
  • A-pocketknife comprising:
  • a planar sheet of material folded about its longitudinalaxis so as to form a U-shaped handle having two parallel sides, and including at least two iongitudinal slits, each disposed in one of the sides of said handle adjacent the folded portion of said sheet of material so as to form a U-shaped, cantilever spring integrally formed with said sheet of material and said handle; and knife blade, pivotably secured in said handle between said sides thereof so that the blunt end of said knife blade engages said cantilever spring when said knife blade is pivoted outwardly from or inwardly into said handle.
  • said handle further comprises at least two additional slits disposed in said handle parallel to the folded portion thereof and the longitudinal axis of said handle, extending from a predetermined point between the ends of said handle to the other end of said handle, so as to form at least one additional U-shaped cantilever spring 4 between two predetermined points located between the ends of said handle, said slits being joined at one end above the pivotably secured blunt end of said knife blade by an additional slit provided in said sheet of material disposed perpendicular to said longitudinal slits, "so as to form a single U-shaped slit in said sheet of material and a U-shaped cantilever spring disposed between the ends of said handle when said sheet of material is folded.

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  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Knives (AREA)
US105863A 1970-10-09 1971-01-12 Pocketknife Expired - Lifetime US3699654A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2051431A DE2051431C3 (enrdf_load_stackoverflow) 1970-10-09 1970-10-09

Publications (1)

Publication Number Publication Date
US3699654A true US3699654A (en) 1972-10-24

Family

ID=5785645

Family Applications (1)

Application Number Title Priority Date Filing Date
US105863A Expired - Lifetime US3699654A (en) 1970-10-09 1971-01-12 Pocketknife

Country Status (5)

Country Link
US (1) US3699654A (enrdf_load_stackoverflow)
BR (1) BR7104833D0 (enrdf_load_stackoverflow)
DE (1) DE2051431C3 (enrdf_load_stackoverflow)
GB (1) GB1280756A (enrdf_load_stackoverflow)
IE (1) IE35092B1 (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606123A (en) * 1983-06-10 1986-08-19 Wraven Products Inc. Cutlery apparatus with interchangeable cutting tool
US5769094A (en) * 1996-12-27 1998-06-23 Jenkins, Jr.; R. B. Folding knife with blade carrier
US20040078981A1 (en) * 2002-10-23 2004-04-29 Kantas Products Co., Ltd. Foldable knife having a single blade
US20050150115A1 (en) * 2002-05-15 2005-07-14 Hanna Robert J. Knife with partially exposed blade when closed
US20110119926A1 (en) * 2009-11-25 2011-05-26 Glen Klecker Lockable folding knife
US8465512B2 (en) 2011-04-05 2013-06-18 Branden D. Rosenhan Safety suture cutting device and related methods
US9901365B1 (en) 2013-03-15 2018-02-27 PenBlade, Inc. Set of safety scalpels

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995010397A1 (en) * 1993-10-11 1995-04-20 Duffy, Gavan, James Collapsible implements
GB2483244A (en) * 2010-08-31 2012-03-07 Iain Sinclair Folding pocket knife

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US75955A (en) * 1868-03-24 John mosley
US1179111A (en) * 1916-01-27 1916-04-11 Jay F Knowlton Pocket-knife.
US1280462A (en) * 1917-11-08 1918-10-01 Otto L Hemming Process of making folding articles.
GB821478A (en) * 1957-05-01 1959-10-07 Roger Inman Improvements in or relating to pocket knives

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US75955A (en) * 1868-03-24 John mosley
US1179111A (en) * 1916-01-27 1916-04-11 Jay F Knowlton Pocket-knife.
US1280462A (en) * 1917-11-08 1918-10-01 Otto L Hemming Process of making folding articles.
GB821478A (en) * 1957-05-01 1959-10-07 Roger Inman Improvements in or relating to pocket knives

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4606123A (en) * 1983-06-10 1986-08-19 Wraven Products Inc. Cutlery apparatus with interchangeable cutting tool
US5769094A (en) * 1996-12-27 1998-06-23 Jenkins, Jr.; R. B. Folding knife with blade carrier
US20050150115A1 (en) * 2002-05-15 2005-07-14 Hanna Robert J. Knife with partially exposed blade when closed
US20040078981A1 (en) * 2002-10-23 2004-04-29 Kantas Products Co., Ltd. Foldable knife having a single blade
US20110119926A1 (en) * 2009-11-25 2011-05-26 Glen Klecker Lockable folding knife
US8443521B2 (en) * 2009-11-25 2013-05-21 Glenn Klecker Lockable folding knife
US9072512B2 (en) 2010-12-23 2015-07-07 PenBlade, Inc. Safety suture cutting device and method
US8465512B2 (en) 2011-04-05 2013-06-18 Branden D. Rosenhan Safety suture cutting device and related methods
US9901365B1 (en) 2013-03-15 2018-02-27 PenBlade, Inc. Set of safety scalpels

Also Published As

Publication number Publication date
DE2051431B2 (enrdf_load_stackoverflow) 1974-05-02
DE2051431A1 (enrdf_load_stackoverflow) 1972-04-13
IE35092B1 (en) 1975-11-12
DE2051431C3 (enrdf_load_stackoverflow) 1974-12-12
GB1280756A (en) 1972-07-05
IE35092L (en) 1972-04-09
BR7104833D0 (pt) 1973-04-26

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