EP0285022A1 - Druckknopfschnalle - Google Patents

Druckknopfschnalle Download PDF

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Publication number
EP0285022A1
EP0285022A1 EP88104829A EP88104829A EP0285022A1 EP 0285022 A1 EP0285022 A1 EP 0285022A1 EP 88104829 A EP88104829 A EP 88104829A EP 88104829 A EP88104829 A EP 88104829A EP 0285022 A1 EP0285022 A1 EP 0285022A1
Authority
EP
European Patent Office
Prior art keywords
hole
fastener according
snap fastener
head
push button
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Withdrawn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
EP88104829A
Other languages
German (de)
English (en)
French (fr)
Inventor
Karl-Egon Lenz
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.)
Gebr Lenz & Co KG GmbH
Original Assignee
Gebr Lenz & Co KG GmbH
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 Gebr Lenz & Co KG GmbH filed Critical Gebr Lenz & Co KG GmbH
Publication of EP0285022A1 publication Critical patent/EP0285022A1/de
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/006—Attachment of buckle to strap
    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/20—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts engaging holes or the like in strap
    • A44B11/22—Buckle with fixed prong

Definitions

  • the invention relates to a buckle for releasably attaching a belt to the perforated wall of a support part, and in particular to a buckle for leather goods, such as sandals, shoes and bags.
  • the usual buckles of shoes and sandals consist of metal parts, with support parts being arranged on both sides of the support part (of the sandal leather), which are in engagement with one another through a hole in the support part via a riveted connection.
  • Such metal buckles are relatively expensive and are susceptible to rust unless they are made of very high quality material. It is also known to provide metal buckles with a plastic surface coating, however, this makes the Costs increased even further without a reliable rust protection being achieved because the plastic coating is easily destroyed or damaged by wear.
  • the invention has for its object to provide a snap buckle of the type specified in the preamble of claim 1, which is easy to manufacture and assemble and does not rust even under harsh conditions of use.
  • the buckle according to the invention consists exclusively of plastic parts which engage and can be clipped together.
  • the hole which interacts with the push button is provided directly in the crosspiece of the buckle frame, so that a complex elastic receiving element, as is normally required for push button receptacles, is not required.
  • the locking receptacle is only formed by a hole in the crossbar of the plastic buckle frame, with either the head or the edge of the hole being elastic to ensure the required locking engagement and the required hold.
  • the buckle frame including the snap-in recess, consists of a one-piece plastic part that can be manufactured by injection molding. No assembly work is required to manufacture the buckle frame, although of course it is possible to attach additional parts to the buckle frame, but these are not necessary for the function of the push button buckle.
  • the buckle according to the invention enables simple mounting on the hole of the carrier part, no riveting machines or other machines which cause permanent deformation being required. All parts are pressed together by elastic clip connection, whereby no great effort is required for assembly, so that the assembly can be carried out by hand without the aid of machines.
  • two tongues are arranged on the frame, which are opposite one another and can reach under the head of the head piece. These two tongues protrude into a hole in the buckle frame, the length of the hole being greater than the length of the head of the push button. In this way, the tongue can be pushed laterally under the head of the push button when the buckle frame is inclined. Then when the opposite side of the buckle frame is depressed, the second tongue snaps under the head. In this way, a relatively small force is required to close the clip connection. In the closed state, both tongues reach under the head. In this state, the buckle frame can be moved longitudinally relative to the head piece.
  • the buckle frame When tension is exerted on the buckle frame by the belt, the buckle frame is pulled into one end position with respect to the push button. In this end position, part of the edge of the hole protrudes under the head, so that the head also under part of the edge of the hole in addition to the tongues is gripped. As a result, the buckle frame is firmly anchored to the support part carrying the push button. The buckle frame is released from the head by lifting the buckle frame on one side, one of the tongues snapping over the head while the other tongue is still in the neck area and can then be pulled out sideways. Only a small amount of force is required to open it.
  • the buckle consists of three or four individual parts, which can be easily manufactured inexpensively by injection molding, do not rust and have no burrs or other parts which cause injury.
  • the in Figs. 1 to 6 shown snap fastener has a push button 30, which is attached to the wall of a carrier part 10, for example on the leather of a shoe or a sandal.
  • the push button 30 consists of two support parts 11 and 12, the opposite set sides are set against the wall of the carrier part 10. In this wall there is a hole 13 into which the hollow shaft 11a of the lower support part 11 projects.
  • the outer diameter of the shaft 11a is only slightly smaller than the diameter of the hole 13.
  • the support part 11 has a plate 11b which projects radially from the shaft 11a and which lies around the hole 13 against the underside of the carrier part 10.
  • the hollow shaft 11a has a plurality of L-shaped locking lugs 11c in the interior of the hole 13, which are separated from one another by radial slots and can spring in the radial direction.
  • the support part 12 arranged on the outside of the carrier part 10 has a downwardly directed neck 12f, at the lower end of which there is a conical head 12g.
  • a radially protruding plate 12b is provided above the neck 12f and is supported on the upper side of the carrier part 10.
  • the head 12g is pushed through the opening formed between the latching lugs 11c and the latching lugs 11c are spread open and is latched under the latching lugs 11c.
  • the resilient locking lugs 11c enclose the support part 12 in the region of the neck 12f and prevent the two support parts 11 and 12 of the push button 30 from being pulled apart without being destroyed.
  • a neck 12c protrudes from the top of the plate 12b, and the thickened head 12d of the push button 30 is located at the upper end thereof.
  • the top of the push button 12d is slightly curved so that the snap-in receptacle provided on the buckle frame can be pressed over the head 12d.
  • the buckle frame 15 is attached to a belt 16. It has a rectangular cross section 15a in plan view with a central clip hole 15b.
  • the Buckle frame 15 also has two parallel side webs 15c, which are connected to one another by transverse end webs 15d. Between the edges of the cross piece 15a and the end pieces 15d there are slots through which the belt 16 can be pushed with a slight deflection.
  • the hole 15b is delimited by an elastic hole edge 21 which is thinner than the crosspiece 15a and over which a recess 22 is provided in the crosspiece.
  • a recess 22 is provided in the crosspiece.
  • In the longitudinal direction of the crossbar 15 runs on the underside of a groove 23, the depth of which is approximately the same as the thickness of the hole edge 21 (FIG. 6), so that the groove 23 divides the hole edge 21 into two halves of a circle.
  • the buckle frame 15 consists of a one-piece plastic part, the cross bar 15a being rigid overall. In the area of the tapered hole edge 21, however, the cross bar 15a has a certain elasticity, so that the hole 15b can be widened by the head 12d of the push button 30 and then the hole edge 21 engages below the head 12d on the neck 12c of the push button 30.
  • a mandrel 17 projects obliquely downwards and inwards from the underside of the one end web 15d, which rises towards the cross web 15. This mandrel is inserted through a hole in the belt 16 in order to prevent displacements of the buckle frame 15 relative to the belt 16.
  • the buckle according to the embodiment of FIGS. 1 to 7 consists of only three parts, namely the two-part push button 30 and the buckle frame 15. All three parts are made of plastic.
  • the push button 30 is firmly attached to the carrier part 10, while the buckle frame 15 is pressed out with the elastically resilient hole 15b onto the head of the push button 30 and engages there.
  • the buckle frame 15 is released by pulling up the buckle frame, the hole 15b snapping up over the head 12d.
  • the buckle according to Figs. 8 to 13 also has a push button made of two support parts 11, 12 which are set against the wall of the support part 10 from opposite sides. In this wall there is a hole 13 through which the hollow shaft 11a of the inner support part 11 projects.
  • the outer diameter of the shaft 11a is only slightly smaller than the diameter of the hole 13.
  • the support part 11 has a plate 11b which projects radially from the shaft 11a and which lies around the hole 13 against the inside of the carrier part 10.
  • the hollow shaft 11a has a plurality of L-shaped locking lugs 11c, which are separated from one another by radial slots and can spring in the radial direction.
  • the radially outward-pointing legs of the locking lugs have outer inclined surfaces 11d.
  • the support part 12 arranged on the outside of the carrier part 10 has an engagement hole 12a in a plate-shaped plate 12b.
  • the plate 12b rests on the outside of the carrier part 10 and has approximately the same diameter as the plate 11b.
  • the diameter of the engaging hole 12a is approximately equal to the outer diameter of the hollow engaging shaft 11a.
  • the radially projecting legs of the latching lugs 11c project beyond the engagement hole 12a in the radial direction, the radial annular shoulders 11e on those facing away from the inclined surfaces 11d Backs outside of the engaging hole 12a lie against the outside of the plate 12b.
  • the latching lugs 11c are pressed in radially resiliently by the inclined surfaces 11d abutting the hole edges. These locking lugs snap radially outwards as soon as the rear annular shoulders 11e have reached the outside of the plate 12b. Then the support parts 11 and 12 are connected to one another in a latching manner.
  • the locking part 14 is provided, which is inserted into the free end of the hollow engagement shaft 11a.
  • the locking part 14 has at its rear end a plate 14a, the edge of which abuts the upper ends of the locking lugs 11c.
  • a neck 14b projects coaxially from the plate 14a into the hollow engagement shaft 11a.
  • the latching surface 14d engages behind an annular shoulder 11f in the interior of the engagement shaft 11a.
  • the locking part 14 When the support parts 11 and 12 are mounted on the support part 10 and engaged with one another in the manner described above, the locking part 14 is inserted into the hollow engagement shaft 11a, the frustoconical circumferential surface 14e of the head 14c initially against inclined surfaces 11g on the inner sides of the locking lugs 11c bumps and pushes the locking lugs radially apart.
  • the latching surface 14d has reached the annular shoulder 11f
  • the head 14c engages behind the outward part of the engagement shaft 11a, so that the locking part 14 is locked with the support part 11, while it is supported at the outer end with the plate 14a on the support part 12.
  • the neck 14b completely fills the space between the locking lugs 11c and prevents the locking lugs from springing inward. In this way, there is a non-destructive, non-releasable connection of the support parts 11 and 12 to one another.
  • the head 14c is completely inside the hollow engagement shaft 11a so that it does not protrude beyond the plate 11b.
  • the locking lugs 12d form the most protruding parts of the support part 12 and they form a ring which surrounds the locking part 14 at a radial distance.
  • the outer support part 12 carries the buckle frame 15.
  • This has a rectangular crosspiece 15a with a central clip hole 15b.
  • the transverse web 15a is delimited by two parallel side webs 15c, which project beyond the transverse web 15a in the longitudinal direction and which are connected to one another at their ends by end webs 15d.
  • a mandrel 17 protrudes from the crosspiece 15a and can be inserted through a hole in the belt 16 in order to prevent longitudinal displacements of the belt 16 in the buckle frame 15.
  • the mandrel 17 is located centrally at one end of the plate 15a which, together with the one transverse web 15d, delimits one of the two slots.
  • the end webs 15d are arranged in such a way that the belt 16 is deflected as it is pushed through the slots, so that a deflection channel for the belt is formed and the belt is also held on the buckle frame by friction.
  • An annular neck 12c projects from the plate 12b and coaxially surrounds the hole 12a.
  • the laterally projecting head 12d of the push button 30 with a conical outer surface.
  • a hole 15b is provided in the transverse web 15a of the buckle frame 15, into which two tongues 20 protrude from opposite side webs 15c.
  • the thickness of each tongue 20 tapers towards the free end, so that the free ends of the tongue protruding into the hole 15b form approximately leaf-shaped resilient elements which slide over the inclined surface of the head 12d and in the region of the neck 12c.
  • the length of the hole 15b in the longitudinal direction of the buckle frame 15, that is to say transversely to the tongues 20, is greater than the relevant length of the circular head 12d.
  • the edge of the hole 15b is steep.
  • the buckle frame 15 is clipped onto the head piece 12c, 12d by pushing the one tongue 20 under the head 12d in the region of the neck 12c while the buckle frame 15 is inclined according to FIG. 9. Then the opposite side of the buckle frame in the direction of the double arrow A according to Fig. 9 pressed down, the tip of the relevant tongue 20 slides on the inclined surface of the head 12d and finally snaps under the head 12d. If the belt 16 then exerts a tension in the direction of arrow B according to FIG. 9, the buckle frame 15 is pulled in the direction that the lower edge 21 gets under the head 12d, so that not only the tongues 20 but also the edge 21 are located under the head 12d. In this loading position of the buckle, lifting the buckle frame from the support part 12 is not possible.
  • the buckle frame can only be released when the belt 16 is relieved.
  • the elongated hole 15b can be pushed into the middle of the head piece 12c, 12d. Since the longitudinal extent of the hole 15b is larger than the largest diameter of the head 12d, the buckle frame 15 can be raised laterally in this position, the one tongue 20 snapping upwards in the direction of the double arrow A according to FIG. 9 over the edge of the head 12d.
  • the buckle frame is then free of the support member 12.
  • the distance between the ends of the tongues is slightly smaller than the largest diameter of the head 12d, but considerably larger than the diameter of the neck 12c, so that the buckle frame can be moved laterally on the support part 12 in the locked state.
  • the buckle frame is also movable in the longitudinal direction, its central position being limited by the fact that the head 12d abuts the steep edge of the hole near the mandrel 17.
  • the head 12d abuts the outer edge of the rim 21 when the neck 12c abuts the inner edge of the rim 21.
  • the common center line of the two tongues 20 is offset with respect to the axis of the head 12d in the longitudinal direction of the buckle frame.

Landscapes

  • Buckles (AREA)
EP88104829A 1987-03-27 1988-03-25 Druckknopfschnalle Withdrawn EP0285022A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8704540U 1987-03-27
DE8704540U DE8704540U1 (de) 1987-03-27 1987-03-27 Schnalle

Publications (1)

Publication Number Publication Date
EP0285022A1 true EP0285022A1 (de) 1988-10-05

Family

ID=6806354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88104829A Withdrawn EP0285022A1 (de) 1987-03-27 1988-03-25 Druckknopfschnalle

Country Status (2)

Country Link
EP (1) EP0285022A1 (no)
DE (1) DE8704540U1 (no)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607016A2 (en) * 2004-06-09 2005-12-21 Gilberto Minella Buckle for bridles
WO2010108728A1 (de) 2009-03-23 2010-09-30 Hirsch Armbaender Gmbh Band, insbesondere uhrarmband, mit beweglicher schliesse
USD794254S1 (en) 2015-11-11 2017-08-08 3M Innovative Properties Company Chinstrap connector for safety helmet
DE202023101909U1 (de) 2023-04-14 2023-04-21 Birkenstock Ip Gmbh Schnalle und Schuhware, Lederware, Behälter oder Gepäckstück mit einer Schnalle
DE102023109469A1 (de) 2023-04-14 2024-10-17 Birkenstock Ip Gmbh Schnalle und Schuhware Lederware, Behälter oder Gepäckstück mit einer Schnalle

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19719269C2 (de) * 1996-09-27 2001-05-31 Inga Bauer Magnetverschluß

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867360A (en) * 1931-03-06 1932-07-12 United Carr Fastener Corp Slide fastener socket
GB481354A (en) * 1936-10-21 1938-03-09 Mat Salcher A Synove Akciova S Improvements in or relating to turning buckle
US2486652A (en) * 1944-07-01 1949-11-01 Scovill Manufacturing Co Belt buckle with slidable gripper element
US3237257A (en) * 1964-03-26 1966-03-01 United Carr Inc Plastic buckle
DE1610347A1 (de) * 1963-11-12 1970-03-19 Aackersberg Mortensen Plastisches Befestigungsglied fuer Schnappverschluesse
US3538554A (en) * 1968-01-19 1970-11-10 United Carr Inc Strap buckle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1867360A (en) * 1931-03-06 1932-07-12 United Carr Fastener Corp Slide fastener socket
GB481354A (en) * 1936-10-21 1938-03-09 Mat Salcher A Synove Akciova S Improvements in or relating to turning buckle
US2486652A (en) * 1944-07-01 1949-11-01 Scovill Manufacturing Co Belt buckle with slidable gripper element
DE1610347A1 (de) * 1963-11-12 1970-03-19 Aackersberg Mortensen Plastisches Befestigungsglied fuer Schnappverschluesse
US3237257A (en) * 1964-03-26 1966-03-01 United Carr Inc Plastic buckle
US3538554A (en) * 1968-01-19 1970-11-10 United Carr Inc Strap buckle

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1607016A2 (en) * 2004-06-09 2005-12-21 Gilberto Minella Buckle for bridles
EP1607016A3 (en) * 2004-06-09 2006-09-06 Gilberto Minella Buckle for bridles
WO2010108728A1 (de) 2009-03-23 2010-09-30 Hirsch Armbaender Gmbh Band, insbesondere uhrarmband, mit beweglicher schliesse
USD794254S1 (en) 2015-11-11 2017-08-08 3M Innovative Properties Company Chinstrap connector for safety helmet
DE202023101909U1 (de) 2023-04-14 2023-04-21 Birkenstock Ip Gmbh Schnalle und Schuhware, Lederware, Behälter oder Gepäckstück mit einer Schnalle
DE102023109469A1 (de) 2023-04-14 2024-10-17 Birkenstock Ip Gmbh Schnalle und Schuhware Lederware, Behälter oder Gepäckstück mit einer Schnalle

Also Published As

Publication number Publication date
DE8704540U1 (de) 1987-05-14

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