Integral mechanical lock

• US 20130236236A1
• Filed: 04/24/2013
• Published: 09/12/2013
• Est. Priority Date: 11/15/2010
• Status: Abandoned Application

• Current Assignee: Glenn Klecker
• Original Assignee: Glenn Klecker
• Inventors: Klecker, Glenn
• Application Number:
  US13/869,850
• Publication Number:
  US 20130236236A1
• Time in Patent Office: Days
• US Class Current: 403/84
• CPC Class Codes: B26B 1/042 by a spring biased locking lever pivoting around an axis parallel to the pivot axis of the blade
• CPC Class Codes: B26B 1/10 Handles
• CPC Class Codes: F16B 7/10 Telescoping systems for vertically adjustable chairs A47C3/20; telescopic steering columns B62D1/18; for scaffolding E04G25/04; telescopic masts, poles or the like E04H12/182; telescopic door or window holders E05C17/30; telescope props for mining E21D15/14 - E21D15/46; stands or trestles as supports for apparatus or articles placed thereon F16M11/26
• CPC Class Codes: F16C 11/10 Arrangements for locking
• CPC Class Codes: Y10T 403/32262 At selected angle
• CPC Class Codes: Y10T 403/32475 having detent

Abstract

An integral mechanical lock for securing extensible and pivotal two member tools, comprising a first member having at least one notch and a second member having an integral lock that engages the first member notch locking the first member and second member in position. The integral lock includes a locking bar integrally formed with a support arm that is located between a pressure pad end and a locking end portion, the support arm provides an effective pivot point whereby when force is applied to the pressure pad end, the locking end portion is urged up out of the first member notch releasing the engagement between the first member from the second member. The integral lock may be constructed from a single flat sheet of metal, or further formed with bends or inclusion of other fixated pieces. A safety interlock shim feature works cooperatively with the pressure pad end by preventing the locking end portion from being urged from the notch when the safety interlock shim is located under the pressure pad end.

Claims

1. An integral lock for an extendable tool, comprising:

at least two sections, a first section 110 and a second section 120, the second section 120 being constructed and arranged to slidably engage in cooperation with the first section 110, the first section 110 having an integral lock 22 formed on at least one side, the second section 120 having at least one notch 125 formed on at least one side;

the integral lock 22 having a locking bar 30 integral with a support arm 40 continuously formed between a locking end portion 36 and a pressure pad end 38 constructed and arranged to lock the first section 110 in relation to the second section 120 when the locking end portion 36 engages into the notch 125 defining the extended position and unlocks the first section 110 in relation to the second section 120 when force is applied at the pressure pad end 38 urging the locking end portion 36 out of the notch 125 unlocking the second section 120 from the first section 110.

3. The integral lock of claim 1, in which the first section 110 and second section 120 are ladder members constructed from square or rectangular tubing.

4. The integral lock of claim 1, further comprising a safety interlock shim 136 constructed and arranged to insert under the pressure pad end 38 such that the locking end portion 36 cannot be urged out of the notch 125.

2. An integral lock for a foldable pivot tool, comprising:

a first member 1 having a tang portion 16, the tang portion 16 having at least one tang notch 46;

a second member 2 having an integral lock 22 formed therefrom;

a pivot structure 19 pivotally mounting the first member 1 to the second member 2;

the integral lock 22 having a locking bar 30 integral with a support arm 40 continuously formed between a locking end portion 36 and a pressure pad end 38 constructed and arranged to lock the first member 1 in relation to the second member 2 when the locking end portion 36 engages the tang notch 46 defining the open position 201, and unlocks the first member 1 in relation to the second member 2 when force is applied to the pressure pad end 38 urging the locking end portion 36 from the tang notch 46 unlocking the first member 1 to pivot freely in relation to the second member 2.

5. The integral lock of claim 2, wherein the integral lock 22 is fully formed flat as the sheet of metal from which second member 2 was cut from.

6. The integral lock of claim 2, wherein the pressure pad end 38 further includes a fixated pressure pad hardware 38A.

7. The integral lock of claim 2, wherein the locking end portion 36 further includes a fixated locking hardware 36A.

8. The integral lock of claim 2, wherein the second member 2 includes spacers 23A or through fasteners 23B.

9. The integral lock of claim 2, wherein the second member 2 is attached to a non-locking handle portion.

10. The integral lock of claim 2, wherein the second member 2 further includes at least one style cutout 205.

11. The integral lock of claim 2, wherein the second member 2 further includes at least one ergonomic grip 206.

12. The integral lock of claim 2, further comprising a safety interlock shim 136 constructed and arranged to insert under the pressure pad end 38 such that the locking end portion 36 cannot be urged out of the tang notch 46.