Fitting for detachably connecting wooden parts of articles of furniture

• US 3,129,472 A
• Filed: 01/22/1959
• Issued: 04/21/1964
• Est. Priority Date: 01/25/1958
• Status: Expired due to Term

• Current Assignee: Erich Hensel
• Original Assignee: Erich Hensel
• Inventors: Hensel, Erich
• Application Number:
  US03/788,367
• Time in Patent Office: 1,916 Days
• US Class Current: 403/7
• CPC Class Codes: F16B 12/22 using keyhole-shaped slots and pins
• CPC Class Codes: F16B 5/0024 the sheets, plates or panels having holes, e.g. for dowel- type connections
• CPC Class Codes: Y10T 29/49876 by snap fit
• CPC Class Codes: Y10T 403/4602 Corner joint
• CPC Class Codes: Y10T 403/47 Molded joint

Claims

1. A FITTING FOR DETACHABLY CONNECTING WOODEN PARTS IN KNOCK-DOWN FURNITURE AND THE LIKE, COMPRISING AN ELONGATED SLEEVE MEMBER MADE OF A RESILIENT MATERIAL AND DIMENSIONED AT ITS OUTER SURFACES TO BE INSERTABLE IN A HOLE PROVIDED IN ONE OF SAID WOODEN PARTS FOR CLOSE ASSPCIATION WITH THE WALL OF SAID HOLE, SAID OUTER SURFACES PROVIDING AT LEAST ONE OUTWARDLY EXTENDING ANNULAR ELEVATION FOR ENGAGEMENT WITH SAID WALL, A BONDING AGENT BEING DISPOSED BETWEEN SAID WALL AND SAID SLEEVE MEMBER TO IMMOBILIZE THE LATTER WITHRESPECT TO SAID ONE WOODEN PART AGAINST AXIAL TORSION FORCES APPLIED THERETO AFTER HAVING BEEN INSERTED IN SAID ONE WOODEN PART, SAID SLEEVE MEMBER BEING FORMED WITH AN OPENING AND AT LEAST ONE INTERNAL PROJECTION, AND A PRISMATIC BOLT MEMBER MADE OF A RESILIENT MATERIAL DISPOSED IN SAID OPENING AND BEING FORMED WITH A GROOVE THEREIN, SAID PROJECTION HAVING A NOSE BEVELLED ON ONE SIDE AND ENGAGING SID GROOVE SO AS TO RESIST AXIAL TORSION FORCES APPLIED TO SAID BOLT MEMBER, SAID BOLT MEMBER HAVING A CUTAWAY AREA ON THE SIDE THEREOF OPPOSITE SAID GROOVE, SAID ONE WOODEN PART BEING PROVIDED WITH A SLOT COMMUNICATING WITH SAID HOLE IN THE REGION OF SAID CUTAWAY AREA WHEN SAID BOLT MEMBER IS INSERTED THEREIN SO THAT EXTRANEOUS MANUAL FORCE CAN BE APPLIED THROUGH SAID SLOT ON SAID BOLT MEMBER TO DISENGAGE SAID NOSE FROM SAID GROOVE AND MAKE SAIDF BOLT MEMBER REMOVABLE FROM SAID SLEEVE MEMBER.