US20100101178A1 - Fastening clamp for connecting wooden parts - Google Patents

Fastening clamp for connecting wooden parts Download PDF

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Publication number
US20100101178A1
US20100101178A1 US12/449,427 US44942708A US2010101178A1 US 20100101178 A1 US20100101178 A1 US 20100101178A1 US 44942708 A US44942708 A US 44942708A US 2010101178 A1 US2010101178 A1 US 2010101178A1
Authority
US
United States
Prior art keywords
web
profile
soleplate
fastening clamp
nail
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.)
Abandoned
Application number
US12/449,427
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English (en)
Inventor
Ulrich Reif
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.)
Braun & Wuerfele & Co GmbH
Braun and Wurfele GmbH and Co
Original Assignee
Braun and Wurfele GmbH and Co
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 Braun and Wurfele GmbH and Co filed Critical Braun and Wurfele GmbH and Co
Assigned to BRAUN & WUERFELE GMBH & CO. reassignment BRAUN & WUERFELE GMBH & CO. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: REIF, ULRICH
Publication of US20100101178A1 publication Critical patent/US20100101178A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0517—U- or C-shaped brackets and clamps

Definitions

  • the invention relates to a fastening clamp for connecting wooden parts to one another and to a foundation according to the preamble of Claim 1 , as is used in particular for planks of balcony and terrace covers in the outdoors.
  • a spacer bracket is put between the planks in the longitudinal direction in current practice and narrow bracket parts are laid under the planks as the foundation, in order to achieve a typical spacing of at least 5 mm.
  • the fastening is then performed using screws, using which the planks are fastened vertically through the support bracket parts on the foundation.
  • the spacer brackets are subsequently removed. Notwithstanding the fact that the screws of the drilled-through planks are visible from above, the wood surface is frequently broken, so that cracks and projecting splinters form. Moisture penetrates via the holes and damages the wood, and the weather forms stains around the holes, which further worsens the already unattractive aesthetics of the screws. Finally, in long planks, widened areas arise around the screws, if the wood and the foundation have different longitudinal coefficients of expansion.
  • a connection system is known from U.S. Pat. No. 2,116,737, by which boards provided with tongue and groove joints are fixed to one another and to a foundation.
  • a fastening clamp is used, whose vertical web has three nails protruding perpendicularly like claws on the top side, which penetrate into the plank faces.
  • On the bottom web side two angled soles which are bent down perpendicularly are provided, each approximately half of the web length, which are bent in opposite directions (left/right).
  • a U-shaped rail which can be screwed onto the foundation is used, which fixes the clamp via lateral web shoulders, the holes resting on the legs of the rail. No spaces are provided between the boards by these known clamps, whereby no air circulation is possible and no shrinkage is taken into consideration, so that these clamps are not suitable for the outdoors.
  • a connection element is known from U.S. Pat. No. 441,227, which is usable for producing corner connections of crates.
  • the clamp is manufactured from a metal strip, in which a tongue-shaped angled part is cut in a U-shape out of the strip as a vertical web and bent up perpendicularly.
  • three corner tongues are formed as nails in the plate and in the web, which are hammered into the boards to be connected on the flat side.
  • a fastening clamp is known from DE 102 30 797 C2, which is a double angle composed of two L-profiles and has an essentially inverted and/or recumbent T-cross-section.
  • the double wall of the web does provide the advantage of increased strength of the web and support of the nails protruding from the two wall parts by the particular other wall part, in particular when driving in the clamps and/or nails.
  • the spacing between the soles is at least double the plate thickness and can be correspondingly widened by a web head which can be provided in the outer part of the web, whereby good ventilation is made possible.
  • Fastening holes are provided in the two angled soles, via which the clamps—and thus the planks—are fastenable on the foundation.
  • the object of the invention is thus to disclose a fastening clamp of the above-mentioned species, which can be provided cost-effectively, while maintaining good handling ability and ensuring good air circulation between the wood parts, and a method for the simple, cost-effective production thereof.
  • This object is achieved by a fastening clamp of the above-mentioned species having the features of Claim 1 and a method having the features of Claim 10 .
  • Advantageous designs are characterized in the particular dependent subclaims.
  • the fastening clamp comprises a rectangular, preferably square soleplate, on which two vertical webs are provided centrally in the transverse extension at a slight distance in the longitudinal direction adjacent to one another. These webs are commonly punched out of the soleplate in a U-shape and bent vertically, i.e., by 90°. Each web carries a perpendicularly protruding, beak-shaped nail in the longitudinal middle and associated with its top side, each in opposing directions.
  • the great advantage is thus achieved that a minimum of material is used, namely only one rectangular, preferably square sheet metal plate having an edge length of approximately 5 cm, for example, from which webs are cut out in a U-shape alternately in point symmetry and bent up perpendicularly. No additional material is thus required for the webs, but rather only parts and/or bent-up sections of the soleplate. At least one third to almost half of the material is thus saved in comparison to clamps having a double-walled web, which is reflected very significantly in the production costs.
  • the fastening nails situated in opposing orientation in the two webs are advantageously implemented and situated so that each web is preferably provided with only one nail, and centrally to the longitudinal extension thereof.
  • the two nails, which protrude freely perpendicularly but in opposite directions from the two web faces, and also the clamps as a whole, as explained in greater detail hereafter, are offset laterally symmetric to a centrally provided symmetry point, i.e., the clamp sides are each identical, with offset by 180° of the clamp. Due to this point symmetry, the clamps do not have to be specially oriented during installation, so that automation of the installation is conceivable, in which the clamps are automatically supplied and may be installed using an impact or compressed air pressure device.
  • the nails are bent out from the web vertically, i.e., in a perpendicular plane in relation to the soleplate. If the fastening nail is additionally curved so it is open downward like a trough or arc, and tapers from the nail root to the tip, having a small radius at the tip, the nail shape is noticeably similar to a bird beak. The nail shape is thus practical, notwithstanding nature, and is extremely bending resistant over its entire length.
  • the nails may also have a notch-shaped groove in longitudinal central extension for the same purposes. Such grooves may also each be provided on the bottom side of the nails.
  • the webs have a flattened corrugated profile in the plate longitudinal direction, whereby the two webs each have opposing bulges.
  • the nails protrude from the particular flat base of the web U-profiles, and/or a nail protrudes centrally from each profiled web.
  • the width of the web profile can be 5 mm or significantly more, depending on the layout of the U-profile.
  • a form fit with the foundation is formed via the soleplate, in that at least one claw-shaped cutter bracket which protrudes downward is formed and/or bent out of the soleplate.
  • This cutter bracket may be provided as edge claws provided protruding on both longitudinal edges of the soleplate, which are drawn and/or bent at least 0.2 to 2.0 mm, preferably 0.5 mm, than the base bottom side of the profile recesses of the soleplate.
  • an angled positioning of the fastening holes can also be provided by embossing.
  • the screws may thus experience an inclination of 5-30°, preferably 10-20°, pointing away from the vertical webs.
  • the method for producing the previously described fastening clamp according to the invention essentially comprises V-shaped notches, which are offset to one another in the longitudinal and transverse direction and point in opposite directions, being introduced into a rectangular, preferably square plate, having an edge length of approximately 5 cm, for example, and the corresponding cutouts being formed as beak-shaped nails essentially perpendicularly and/or by 90° to the soleplate.
  • a U-shaped notch is introduced in each case in the opposite direction around the nail tongues and bent down perpendicularly in the same pivot direction as the nail tongues, so that the nails are finally each located horizontally and thus parallel above the web cutout opening. It may be recognized that the fastening clamps allow a relatively simple punch-technology production in their basic embodiment.
  • U-profiles which are implemented opposite to one another in the transverse direction and are situated adjacent to one another in the longitudinal direction, are first introduced in a downwardly depressed manner into the sheet metal forming the soleplate.
  • a beak-shaped nail is then introduced into the flat base of a particular profile by corresponding punching and bending, after which the U-shaped cutouts are introduced just outside and parallel to the outer profile lines and the profile webs are pressed up correspondingly.
  • a relatively small support and/or contact surface with the support wood is achieved by the particular recess or profile base, it also being ensured by the introduction of the screw holes into this profile area that only this relatively small area is brought into close contact with the support wood.
  • FIG. 1 shows a perspective view of a fastening clamp in a first embodiment
  • FIG. 2 shows a top view of the clamp according to FIG. 1 ,
  • FIG. 3 shows a section along line III-III from FIG. 2 ,
  • FIG. 4 shows a section along line IV-IV from FIG. 2 ,
  • FIG. 5 shows a top view similar to FIG. 1 of a second embodiment
  • FIG. 6 shows a section along line VI-VI from FIG. 5 ,
  • FIG. 7 shows a top view similar to FIGS. 1 and 5 of a further embodiment
  • FIG. 8 shows a section along line VIII-VIII from FIG. 7 ,
  • FIG. 9 shows a section along line IX-IX from FIG. 7 .
  • FIGS. 10 to 17 show a fastening clamp in various steps of the production method, each in a top view and in a frontal view.
  • the fastening clamp according to the invention comprises a rectangular soleplate in a first embodiment, in which two vertical webs and 3 are provided in the central zone of the longitudinal extension adjacent to one another at a short distance.
  • These vertically oriented U-profiles 4 and 5 each have a linear profile base 6 , which are oriented parallel to one another in the longitudinal extension and to the longitudinal edges of the plate, having outwardly opening, relatively short legs 7 and 8 .
  • Leg extensions 9 and 10 which are essentially parallel to the longitudinal extension of the soleplate or at least point briefly in this direction, continue on the outer ends thereof in relation to the profile base 6 , 7 .
  • leg extensions 9 and 10 of one web are oriented aligned with the profile base 6 of the other web, so that the particular face of the leg extensions 8 and 9 and the profile base 6 pointing toward one or the other longitudinal edge 11 or 12 of the soleplate lie on the same line and thus form linear and also parallel supports for two planks 13 and 14 to be connected to one another.
  • the gap or spacing 15 between the planks can be determined precisely.
  • An essentially beak-shaped nail 16 and 17 protrudes perpendicularly to the web base 6 and simultaneously parallel to the soleplate 1 from the outer profile base surface of each web 2 , 3 , also in opposite extension, of course. In addition, they are central to the particular web and simultaneously close to the upper edge thereof.
  • These nails 16 , 17 are designed as longer than the height of the web, so that the correspondingly tapered nail cutout 18 below the nail occupies the entire height of the web below the nail and appears to lead further into the plate.
  • An opening 20 may be recognized on the particular nail side of the webs 2 , 3 in the plate 1 , which is obtained by introducing a U-cutout or U-notch 21 , whereby the contour of the particular web is cut out of the soleplate and subsequently the web is bent up perpendicularly.
  • a recess 21 may be seen on the particular other side of the webs 2 and 3 , which has the same U-profile viewed in longitudinal section as the particular webs.
  • a hole 23 is introduced into the soleplate in each of these recesses 21 , the particular outer edge of the recess being terminated rounded in relation to the hole so that upon introduction of a screw, the corresponding screw head rests unobstructed on the base of the recess 22 and allows proper contact pressure on the support wood.
  • FIG. 1 it may also be seen from FIG. 1 in particular that the particular nail cutout 18 , starting from the web, is led into the particular recess 22 so that the hole 23 and/or the corresponding concentric support surface for the screw head is not interfered with, but the effective extension of the two lower support surfaces of the recesses 21 is decreased.
  • Secure fixing on the support wood 24 is possible through the two screw points, and simultaneously ventilation underneath over a very large area, as is recognizable in particular from FIGS. 3 and 4 .
  • the longitudinal edges 11 and 12 of the soleplate are each bent downward and extend somewhat further down than the lower base surfaces 25 of the recesses 22 . They form claw edges 26 , which are longitudinally parallel to one another, as is recognizable from FIGS. 3 and 4 in particular.
  • the clamps are fastened pressed on and screwed tightly, having the base surface 25 pressed against the support wood 24 , the claw edges 26 are pressed into the support wood 24 like blades, so that twisting, even in the event of fastening via only one screw, is prevented per se.
  • the bending stiffness of the soleplate is increased by this angle bend.
  • the second embodiment shown in FIGS. 5 and 6 differs from the previously described embodiment according to FIGS. 1 through 4 solely in that the nails 16 and 17 have a comb-shaped rib 27 on their upper comb.
  • an essentially L-shaped angle bend 30 is provided on the particular transverse edge 28 and/or 29 , through which in particular the lateral zones, which are weakened by the U-opening or notches 20 , 21 , receive sufficient bending stiffness.
  • FIGS. 7 , 8 , and 9 show a fastening clamp similar to that in the preceding figures as a further embodiment, but here the nails 16 , 17 have a notch-shaped groove 34 on their top side in central longitudinal extension, which is introduced by embossing. A groove 35 is simultaneously provided on the bottom side of the nail.
  • an embossing 31 is provided concentrically to the holes 23 for the fastening screws in each case, so that the axes 32 of the holes 23 are oriented at an angle ⁇ pointing away from the vertical webs 2 , 3 .
  • FIGS. 10 and 11 show a first section during the chip-free production of a fastening clamp according to the invention, the V-shaped nail cutouts 18 and 19 being shown in FIG. 10 , which are introduced in opposing directions with point symmetry, while it may be seen from FIG. 11 how the nails 16 , 17 corresponding to the cutouts 18 and 19 are pressed perpendicularly downward and implemented as beak-shaped.
  • FIG. 12 illustrates how a profile recess 22 is associated with each of the nail cutouts 18 , 19 and/or was introduced into the soleplate 1 , in addition to a hole 23 in each case.
  • FIG. 13 additionally shows how the U-recesses 22 project from the bottom side of the soleplate 1 and the nails 16 and 17 protrude from each of them.
  • FIGS. 14 and 15 show how, in a further step, a U-notch 21 is associated with each recess 22 and thus every nail 16 , 17 , and/or is introduced into the plate 1 , the base of the U-notch 21 being situated close to the root of the nail cutout 18 , 19 .
  • the parallel leas of the U-notch 21 are spaced apart from one another enough that they are provided outside the outer edges of the U-recesses 22 , enclosing them in parallel approximately up to the middle of the transverse extension of the plate.
  • FIGS. 16 and 17 show how, in a last step, the U-cutouts 21 were bent down perpendicularly to the plate extension and in the same bending direction as the nails 16 , 17 , whereby the webs 2 and 3 are formed. Simultaneously or already in the preceding step, the longitudinal edges 11 and 12 were pressed downward and each formed a claw edge 26 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Connection Of Plates (AREA)
  • Clamps And Clips (AREA)
US12/449,427 2007-02-23 2008-02-22 Fastening clamp for connecting wooden parts Abandoned US20100101178A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102007009477.0 2007-02-23
DE102007009477A DE102007009477B3 (de) 2007-02-23 2007-02-23 Befestigungsklammer zur Verbindung von Holzbauteilen und Verfahren zu deren Herstellung
PCT/DE2008/000314 WO2008101491A1 (de) 2007-02-23 2008-02-22 Befestigungsklammer zur verbindung von holzbauteilen

Publications (1)

Publication Number Publication Date
US20100101178A1 true US20100101178A1 (en) 2010-04-29

Family

ID=39496107

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/449,427 Abandoned US20100101178A1 (en) 2007-02-23 2008-02-22 Fastening clamp for connecting wooden parts

Country Status (5)

Country Link
US (1) US20100101178A1 (de)
EP (1) EP1984587B1 (de)
CA (1) CA2686528A1 (de)
DE (1) DE102007009477B3 (de)
WO (1) WO2008101491A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10801537B2 (en) 2018-01-05 2020-10-13 Nova USA Wood Products, LLC Resilient mounting clips, panel mount systems including the same, and associated methods

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011118508A1 (de) * 2011-11-15 2013-05-16 Stefan Ehrenreich Riemenanordnung
DE202012002870U1 (de) 2012-03-20 2012-05-03 Ulrich Reif Befestigungsklammer zur Verbindung von Bauteilen
DE102013001704A1 (de) * 2013-02-01 2014-08-07 Hüsler Silkwood GmbH Befestigungsprofil
DK3112551T3 (en) 2015-07-02 2018-09-17 Gaisbauer Guenther Terrace system and holder for fastening view profiles
EP3453815B1 (de) * 2017-09-11 2021-05-19 Günther Gaisbauer Terrassensystem und halteteil zum verbinden von mehreren terrassenprofilen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383658A (en) * 1943-07-30 1945-08-28 Larson Co Charles O Picture hanger
US3945167A (en) * 1973-11-01 1976-03-23 United States Gypsum Company Clip for the assembly of composite structural members
US6279286B1 (en) * 1999-07-28 2001-08-28 Nichiha Corp. Fastening member for vertical board siding, vertical board siding using the fastening member, and vertical siding structure constructed using the fastening member
US6315489B1 (en) * 1998-11-30 2001-11-13 Nichiha Corporation Fastening member
US7017788B2 (en) * 2002-03-21 2006-03-28 Jac Products, Inc. Adapter bracket for securing a support foot of a article carrier support rail to an outer surface of a vehicle having a roof channel
US20060272261A1 (en) * 2005-03-22 2006-12-07 Nichiha Co., Ltd. Member and structure for fastening exterior panel
US7251918B2 (en) * 2001-07-16 2007-08-07 Braun & Wùrfele GmbH & Co. Fixing bracket for joining wooden building components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US441227A (en) * 1890-11-25 Box-strap
US2116737A (en) * 1934-07-16 1938-05-10 Leon F Urbain System for laying boards
US2303103A (en) 1938-12-12 1942-11-24 Celotex Corp Metal clip
DE7700785U1 (de) * 1977-01-13 1977-04-21 Goelz, Eugen, 7418 Metzingen Verbindungselement fuer das befestigen von paneelen, brettern oder platten an einer unterkonstruktion
DE8003136U1 (de) * 1980-02-06 1980-05-14 Vissing, Friedrich, 8011 Kirchheim Metallklammer fuer wand- und deckenverkleidungen
US5027573A (en) * 1989-05-01 1991-07-02 Simpson Strong-Tie Company, Inc. Deck clip system, method and connector connection
DE102004061437B4 (de) * 2004-12-17 2007-05-03 Dieter Reif Befestigungsklammer zur Verbindung von Holzbauteilen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2383658A (en) * 1943-07-30 1945-08-28 Larson Co Charles O Picture hanger
US3945167A (en) * 1973-11-01 1976-03-23 United States Gypsum Company Clip for the assembly of composite structural members
US6315489B1 (en) * 1998-11-30 2001-11-13 Nichiha Corporation Fastening member
US6279286B1 (en) * 1999-07-28 2001-08-28 Nichiha Corp. Fastening member for vertical board siding, vertical board siding using the fastening member, and vertical siding structure constructed using the fastening member
US7251918B2 (en) * 2001-07-16 2007-08-07 Braun & Wùrfele GmbH & Co. Fixing bracket for joining wooden building components
US7017788B2 (en) * 2002-03-21 2006-03-28 Jac Products, Inc. Adapter bracket for securing a support foot of a article carrier support rail to an outer surface of a vehicle having a roof channel
US20060272261A1 (en) * 2005-03-22 2006-12-07 Nichiha Co., Ltd. Member and structure for fastening exterior panel
US7748188B2 (en) * 2005-03-22 2010-07-06 Nichiha Co., Ltd Member and structure for fastening exterior panel

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10801537B2 (en) 2018-01-05 2020-10-13 Nova USA Wood Products, LLC Resilient mounting clips, panel mount systems including the same, and associated methods
US11306754B2 (en) 2018-01-05 2022-04-19 Nova USA Wood Products, LLC Resilient mounting clips, panel mount systems including the same, and associated methods
US11598357B2 (en) 2018-01-05 2023-03-07 Nova USA Wood Products, LLC Resilient mounting clips, panel mount systems including the same, and associated methods

Also Published As

Publication number Publication date
WO2008101491A8 (de) 2008-12-04
DE102007009477B3 (de) 2008-10-30
CA2686528A1 (en) 2008-08-28
WO2008101491A1 (de) 2008-08-28
EP1984587B1 (de) 2013-09-04
EP1984587A1 (de) 2008-10-29

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Legal Events

Date Code Title Description
AS Assignment

Owner name: BRAUN & WUERFELE GMBH & CO.,GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:REIF, ULRICH;REEL/FRAME:023082/0211

Effective date: 20090804

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION