GB2201217A - Timber framework structures - Google Patents
Timber framework structures Download PDFInfo
- Publication number
- GB2201217A GB2201217A GB08803122A GB8803122A GB2201217A GB 2201217 A GB2201217 A GB 2201217A GB 08803122 A GB08803122 A GB 08803122A GB 8803122 A GB8803122 A GB 8803122A GB 2201217 A GB2201217 A GB 2201217A
- Authority
- GB
- United Kingdom
- Prior art keywords
- timber
- bore
- fixing member
- timbers
- rabbet
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
- F16B12/2054—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with engaging screw threads as securing means for limiting movement
- F16B12/2063—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with engaging screw threads as securing means for limiting movement with engaging screw threads as tightening means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B12/00—Jointing of furniture or the like, e.g. hidden from exterior
- F16B12/10—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like
- F16B12/12—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics
- F16B12/20—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like
- F16B12/2009—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion
- F16B12/2027—Jointing of furniture or the like, e.g. hidden from exterior using pegs, bolts, tenons, clamps, clips, or the like for non-metal furniture parts, e.g. made of wood, of plastics using clamps, clips, wedges, sliding bolts, or the like actuated by rotary motion with rotating excenters or wedges
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joining Of Building Structures In Genera (AREA)
Abstract
A system for connecting together elongate timbers to form a framework structure comprises a fixing member (6) firmly attached to one timber (1) by means of bolts (7) engaging with an insert member (3) located within the timber (1) such that the fixing member (6) extends outwardly from one side of timber (1), the fixing member (6) being received in a rabbet or mortise (9) in one end of a second timber (8) and the two timbers (1) and (8) being locked together by means of a locking screw or boil (21) passing through a first bore (10) intersecting the rabbet or mortise (9) and a transverse bore (15) in the fixing member (6) and engaging with a second, screw threaded bore (12) on the opposite side of the rabbet or mortise (9). <IMAGE>
Description
TIMBER FRAMEWORK STRUCTURES - -
This invention relates to a system for connecting together elongate timbers to form framework structures.
A system has been proposed for connecting together elongate timbers to form a framework structure, which involves inserting two longtitudinally spaced pins in a first timber to extend outwardly from one side thereof fitting a rabbet or mortise in one end of a second timber over the pins and locking the two timbers together by means of a locking member having a cam surface which is fitted over a head on one pin through a bore in the second timber intersecting the rabbet or mortise and turning the locking member to draw the two timbers tightly together under the action of the cam.
The thickness of the material of the locking member is necessarily such that it is very easy to crack the locking member by overtightening.
This invention provides a system for connecting together elongate timbers to form a framework structure which comprises a fixing member firmly attached to one timber by means of bolts engaging with an insert member located within the timber such that the fixing member extends outwardly from one side of timber, the fixing member being received in a rabbet or mortise in one end of a second timber, the two timbers being locked together by means of a locking screw or bolt passing through a first bore intersecting the rabbet or mortise and a transverse bore in the fixing member and engaging with a second, screw threaded, bore on the opposite side of the rabbet or mortise.
This invention also provides a method for connecting together elongate timbers to form a framework structure which comprises firmly attaching a fixing member to one timber by means of bolts engaging with an insert member located within the timber such that the fixing member extends outwardly from one side of the timber, passing a rabbet or mortise in one end of a second timber over the fixing member and fixing the two timbers together with a locking screw or bolt passing through a first bore intereeeting the rabbet or mortise and a transverse bore in the fixing member, the locking screw or bolt engaging with a second, screw threaded, bore on the opposite side of the rabbet or mortise.
The fixing member is preferably a substantially rectangular block member. One alternative form of fixing member comprises a base plate for attachment to the timber, a neck portion extending perpendicular from the base plate and a tubular head arranged transversely of the neck portion and defining the bore in the fixing member.
Preferably the centres of the bore in the fixing member and the screw threaded bore in the second timber are offset in the longitudinal direction of the timber such that on engagement of the screw or bolt in the bores the two timbers are drawn tightly together. Preferably the first bore in the second timber has a larger diameter than the bore in the fixing member and the locking screw or bolt has a frusto conical shoulder between a screw threaded portion and a cylindrical head. In this arrangement it is preferred that the bore in the fixing member, especially when it is a rectangular block, should have a corresponding frusto conical shape in order to avoid excessive wear or other damage caused by line contact between the frusto conical shoulder and a sharp edge on the bore in the fixing member.It is desirable that the bore in the fixing member is tapered from both sides of the block to produce an hour glass shape since then it is immaterial which way round the fixing member is fitted to the first timber.
The invention will now be described in greater detail by way of example with reference to the drawings in which Fig.l.is a horizontal section through one form of joint according to the invention; Fig.2. is a vertical section through the joint shown in
Fig.l; Fig.3 is a vertical section through an alternative form of joint according to the invention Fig.4 shows one form of structure that can be assembled using the joints of Figs 1 and 2 and
Fig.3; and Fig. 5 shows an alternative form of fixing member.
'Referring to Fig.1. and Fig.2. a system is shown for joining together two,three or four elongate timbers,(only one of which is shown) to a further elongate timber arranged with its axis perpendicular to the timbers attached thereto.
A first elongate timber 1 is recessed at 2 to receive a rectangular block insert member 3. The insert member 3 has pairs of longitudinally spaced internally screw threaded bores 4 arranged on the four sides that are shown as vertical in the drawing.
Attached to the insert member 4 by pairs of bolts 5 is a rectangularr block 6. The bolts 5 pass through bores 7 in the block 6 and engage with the screw threads in the bores 4. If the insert member 3 is not captive in the recess 2 it is essential that it is retained in the recess 2 for example by attaching at least one further fixing block thereto or by using locking bolts engaging in one or more further bores 4.
The second elongate timbers 8 (only one of which is shown) have a rabbet 9. A first transverse bore 10 intersects the rabbet 9 from one side of the timber 8. Aligned with bore 10 on the opposite side of the rabbet 9 is a second bore 12 extending only partially through the thickness of the timber and receiving a bush 13 which has a coarse external screw thread 14 and a finer internal screw thread,( not shown). The fixing block 6 has a transverse bore 15. To join together two timbers the rabbet 9 in the second timber 8 is fitted over fixing block 6 so that the end 16 of the second timber 8 lies closely adjacent the surface 17 of the timber 1. In this position the centre of the transverse bore 15 in the block 6 is not aligned with the centres of the bores 10 and 12.A bolt 18 having a threaded portion9, a frusto conical shoulder 20 and a cylindrical head 21 is passed through the bores 10 and 15 to engage with the internal screw thread of bush 13. On tightening of the bolt 18 the frusto conical shoulder 20 engages against the outer most edge (in a direction away from timber 1) of the bore 15 and thus urges the end 16 of the timber 8 tightly against the surface 17 of timber 1 to form a very rigid, joint. The bolt 18 is preferably of such length that when fully tightened its head lies flush with or below the surface of timber 8.
In order to avoid wear of the shoulder 20 and distortion of the material at the edge of the bore 15 the edge 22 may be formed with the same taper as shoulder 20. -Preferably to ensure that the block 6 can be fitted either way round the bore 15 is preferably formed with a taper from both sides of block 6.
The number of second timbers 8 to be fitted around the first timber 1 and the positions of those timbers may determine the number of bores 4 in the insert member 3 and the number of bolt receiving bores 23 formed in surfaces 17 of the first timber 1.
Fig.3. shows an alternative system which may be used when it is desired only to connect a single second timber 2 to a first timber 1 or when somewhat less strength in a joint may be required.
In this case, instead of the insert member 3, bosses 24 having coarse external screw threads 25 and finer internal screw threads (not shown) are screwed into bores 26 in the first timber 1. The bolts 5 for attaching the block 6 are screwed into the internal screw threads in the bosses 24. Mounting of the second timber 8 onto the block 6 is as described in connection with Figs. 1 and 2.
In the arrangements described it is only possible to join timbers at right angles. When it is desired to join timbers at other angles a block 6 may be used in which the corners 27 are radiused and the heads of the bolts 5 fully countersunk within the block 6. The end 16 of second timber 2 will be cut off at the desired angle.
Moreover, for ease of formation of the recess 2 in the first timber it may be desirable to replace the rectangular block shaped insert member 3 by an insert member of dumbell cross section which can be fitted into a recess formed by two intersecting circular bores.
Further, it is not essential that the insert member 3 should be a solid block provided that the bolts 5 can be firmly fixed to the insert member 3.
A typical structure that may be made using the system of the invention is shown in Fig.4. In this structure the structural joints which require most strength and are produced with an arrangement as shown in Figs. 1 and 2 are circled. The remaining joints which do not require such strength are made using the arrangement of Fig.3.
It will be seen that -the system of the invention gives a very easy method of producing an extremely strong timber framework structure.
Fig. 5 shows an alternative form of fixing member which comprises base plate 28 with bores 29 to allow passage of bolts 5, a neck portion 30 and a tubular head portion 31 arranged transversely of the-neck portion 30 and defining a bore 32 to receive bolt 8. This alternative form of fixing member is preferred when it is desired to connect timbers at angles other than right angles.
Claims (10)
1. A system for connecting together elongate timbers to form a framework structure which comprises a fixing member firmly attached to one timber by means of bolts engaging with an insert member located within the timber such that the fixing member extends outwardly from one side of timber, the fixing member being received in a rabbet or mortise in one end of a second timber, the two timbers being locked together by means of a locking screw or bolt passing through a first bore intersecting the rabbet or mortise and a transverse bore in the fixing member and engaging with a second, screw threaded, bore on the opposite side of the rabbet or mortise.
2. A system according to claim 1 wherein the centres of the bore in the block and of the bores in the second timber are offset in the longitudinal direction of the timber such that on engagement of the screw or bolt in the bores the two timbers are drawn tightly together.
3. A system according to claim 1 or claim 2 wherein the first bore in the timber has a larger diameter than the bore in the fixing member and the screw threaded bore and the locking screw or bolt has a frusto conical shoulder between a screw threaded portion and a cylindrical head.
4. A system according to claim 3 wherein the bore in the block has a frusto conical shape corresponding to the shape of the shoulder on the locking screw or bolt.
5. A system according to any one of claims 1 to 4, where the fixing member is a substantially rectangular block member.
6. A system according to any one of claims 1 to 4, when the fixing member comprises a base plate, a neck portion extending perpendicular from the base plate and a tubular head portion arranged transversely of the neck portion.
7. A system according to claim 1 substantially as described herein with reference to the drawings.
8. A method for connecting together elongate timbers to form a framework structure which comprises a fixing block member firmly attached to one timber by means of bolts engaging with an insert member located within the timber such that the fixing member extends outwardly from one side of timber, the fixing member being received in a rabbet or mortise in one end of a second timber, the two timbers being locked together by means of a locking screw or bolt passing through a first bore intersecting the rabbet or mortise and a transverse bore in the fixing member and engaging with a second screw threaded, bore on the opposite side of the rabbet or mortise.
9. A method according to claim 8 substantially as described herein with reference to the drawings.
10. A timber framework structure comprising a plurality of elongate timbers, wherein the timbers are connected together using a system as claimed in any one of claims 1-7 or a method according to claim 8 or claim 9.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB878703060A GB8703060D0 (en) | 1987-02-11 | 1987-02-11 | Timber framework structures |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB8803122D0 GB8803122D0 (en) | 1988-03-09 |
| GB2201217A true GB2201217A (en) | 1988-08-24 |
| GB2201217B GB2201217B (en) | 1991-05-29 |
Family
ID=10612073
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878703060A Pending GB8703060D0 (en) | 1987-02-11 | 1987-02-11 | Timber framework structures |
| GB8803122A Expired - Lifetime GB2201217B (en) | 1987-02-11 | 1988-02-11 | Timber framework structures |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB878703060A Pending GB8703060D0 (en) | 1987-02-11 | 1987-02-11 | Timber framework structures |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB8703060D0 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027430A1 (en) * | 2000-06-02 | 2001-12-20 | Walter Stumpf | Wood scaffolding structure for display applications has a ball junction unit with threaded mounting points to take screw bolts at the ends of the rods to be locked in place |
| GB2453764A (en) * | 2007-10-18 | 2009-04-22 | Colebrook Bosson Saunders Prod | Clamp |
| WO2009094720A1 (en) * | 2008-01-30 | 2009-08-06 | Alosman Ajanovic | A connector assembly |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB420551A (en) * | 1933-11-01 | 1934-12-04 | Louis Garson | Improvements in and relating to bedsteads and like articles of furniture |
| GB1110010A (en) * | 1965-08-17 | 1968-04-18 | Nii Teploenerge Ticheskogo Pri | Device for measuring a parameter of a fluid |
| GB1112945A (en) * | 1964-05-11 | 1968-05-08 | Marcel Strassle | Construction bars and joints therefor |
| GB1341909A (en) * | 1971-12-07 | 1973-12-25 | Hydro Stack Mfg Corp | Modular fluid system |
| GB1444126A (en) * | 1972-11-02 | 1976-07-28 | Chemcut Corp | Securing and alignment means for modular chemical treatment system |
| GB1502869A (en) * | 1975-12-24 | 1978-03-08 | Iberica Del Frio Sa | Wall construction |
| GB1585882A (en) * | 1976-06-17 | 1981-03-11 | Wise W | Locking device |
| GB1599669A (en) * | 1978-05-30 | 1981-10-07 | Gorringe D C S | Playpens |
-
1987
- 1987-02-11 GB GB878703060A patent/GB8703060D0/en active Pending
-
1988
- 1988-02-11 GB GB8803122A patent/GB2201217B/en not_active Expired - Lifetime
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB420551A (en) * | 1933-11-01 | 1934-12-04 | Louis Garson | Improvements in and relating to bedsteads and like articles of furniture |
| GB1112945A (en) * | 1964-05-11 | 1968-05-08 | Marcel Strassle | Construction bars and joints therefor |
| GB1110010A (en) * | 1965-08-17 | 1968-04-18 | Nii Teploenerge Ticheskogo Pri | Device for measuring a parameter of a fluid |
| GB1341909A (en) * | 1971-12-07 | 1973-12-25 | Hydro Stack Mfg Corp | Modular fluid system |
| GB1444126A (en) * | 1972-11-02 | 1976-07-28 | Chemcut Corp | Securing and alignment means for modular chemical treatment system |
| GB1502869A (en) * | 1975-12-24 | 1978-03-08 | Iberica Del Frio Sa | Wall construction |
| GB1585882A (en) * | 1976-06-17 | 1981-03-11 | Wise W | Locking device |
| GB1599669A (en) * | 1978-05-30 | 1981-10-07 | Gorringe D C S | Playpens |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10027430A1 (en) * | 2000-06-02 | 2001-12-20 | Walter Stumpf | Wood scaffolding structure for display applications has a ball junction unit with threaded mounting points to take screw bolts at the ends of the rods to be locked in place |
| DE10027430C2 (en) * | 2000-06-02 | 2002-04-18 | Walter Stumpf | Connecting node elements and connecting rods for the construction of rod-node space trusses |
| GB2453764A (en) * | 2007-10-18 | 2009-04-22 | Colebrook Bosson Saunders Prod | Clamp |
| WO2009094720A1 (en) * | 2008-01-30 | 2009-08-06 | Alosman Ajanovic | A connector assembly |
| US8992114B2 (en) | 2008-01-30 | 2015-03-31 | Boseth Pty Ltd | Connector assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| GB8803122D0 (en) | 1988-03-09 |
| GB8703060D0 (en) | 1987-03-18 |
| GB2201217B (en) | 1991-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19950211 |