CN103192358B - Heavily loaded detachable sawhorse with smoothing ability - Google Patents
Heavily loaded detachable sawhorse with smoothing ability Download PDFInfo
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- CN103192358B CN103192358B CN201210595888.9A CN201210595888A CN103192358B CN 103192358 B CN103192358 B CN 103192358B CN 201210595888 A CN201210595888 A CN 201210595888A CN 103192358 B CN103192358 B CN 103192358B
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- sawhorse
- crossbeam
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Abstract
The invention provides detachable sawhorse, the detachable sawhorse has one and passes through the support beam that at least two pairs of supports support on the surface, the opposite end of each pair support support beam.Crossbeam has at least four connector, and at least one a pair of connectors is installed in relative lateral sidewalls at one end, and at least second pair of connector is arranged in the relative lateral sidewalls of another opposite end.Each connector has a block tongue extended downwardly from crossbeam upper wall, for engaging the axially extending groove of every pedestal upper end.Each pair support is connected with each other by adjuster, for adjusting horizontal spacing therebetween.The horizontal spacing between each pair support is manipulated to allow to manipulate the working depth of sawhorse and smooth sawhorse.
Description
Technical field
The present invention relates to a kind of sawhorse, more particularly to a kind of heavy duty with movable supporting frame and smoothing ability are detachable
Sawhorse.
Background technology
Carpenter is both known about typically with other people using a kind of or other kinds of sawhorse existing several centuries, most people
Sawhorse have the horizontal gird of opposite end be supported on by a pair of brackets.Those skilled in the art are it is recognised that can change
Become the size of sawhorse to adapt to special needs.
Need typically temporary transient for sawhorse, using gap, sawhorse is disassembled into a kind of more compact and just
The form taken is eaily.Dismountable form make it that sawhorse is more convenient for transporting the places of needs, during to use
It can re-assembly.Usually, the assembling of detachable sawhorse and disassemble including fixture, bolt, screw and nail.
Breisch United States Patent (USP)s 4,014,405 disclose a kind of detachable sawhorse, and it is without the use of bolt, screw, nail
Son or fixture are assembled.Breisch teaches two pairs of identical supports, all coordinates per a pair of brackets installed in horizontal along level
In the groove of beam bottom.Horizontal gird is supported in every one end by a pair of identical support.The support of cooperation need not use bolt,
Screw, nail or clip can be fixedly mounted in recess.Breisch sawhorse is made up of thermoplastic, its branch
Frame is unadjustable to smooth horizontal gird.
McQuiston United States Patent (USP)s 5,305,850 teach it is a kind of have reeded horizontal gird at relative both ends, it is recessed
Groove is used to receive corresponding a pair of brackets.McQuiston detachable sawhorse does not need bolt, screw, nail or fixture just
Composable sawhorse.Similar with Breisch, McQuiston support is unadjustable to smooth horizontal gird.
In recent years, folding sawhorse is very popular.As Kroger is in United States Patent (USP) 4, disclosed in 296,834,
Typical folding sawhorse has horizontal gird, and in each opposite end of horizontal gird, it is supported by a pair of brackets.Two
Horizontal gird is pivotally connected to respectively to support so that this longitudinally rotates to support towards horizontal gird, so as to folding saw
Yoke is for storing or transport.When storing, transporting or use it, folding sawhorse need not be dismantled and group again
Dress.
Coultrup et al. United States Patent (USP)s 4,804,064 teach a kind of vertically adjustable light-duty foldable sawhorse.
Using in four supports in Coultrup sawhorse, each support is telescopically adjustable in length, so that user adjusts
Sawhorse is in the working depth of every one end to smooth sawhorse.Coultrup telescoping shoring column can be adjusted by using spring
Piece is locked in a position or therefrom discharged, to allow user in working face colonel's flat sawing yoke of out-of-flatness.Therefore,
The maximum load-carrying capacity of Coultrup sawhorse is cut down and limited, and it is not the bearing capacity according to supporting support,
But according to the bearing capacity for being used to lock the spring tab of every support in ad-hoc location.
Stang et al. United States Patent (USP)s 5,908,182, which disclose one kind, can reconcile folding sawhorse, and it also has smoothing
Ability.Stang sawhorse includes a horizontal gird and a support frame, wherein, horizontal gird is in two opposite end
Supported by frame type A, support frame has two columns being connected with each other with two frame type As.Each frame type A is supporting
It is movably supported on the column of framework, on the working face of out-of-flatness, its height can be independently adjustable to smooth sawhorse.
Similar with Coultrup sawhorse, the bearing capacity of Stang sawhorse is cut down and limited, and it is not according to support
The bearing capacity of support, but according to the bearing capacity of support frame.
People need a kind of heavily loaded business sawhorse, while its maximum load-carrying capacity is kept, be easy to store, it is adjustable simultaneously
And it can smooth.
The content of the invention
The embodiment of heavily loaded, dismountable sawhorse has a crossbeam, and the crossbeam is existed by the support of a pair of openings
Opposed end supports.Each opposite end of crossbeam has a pair of connectors, for being removably couplable to corresponding support.Every
Support is at a fully engaged with crossbeam, for the mean allocation load-carrying between each support of support beam.
Two supports in each pair support are spaced by adjuster, and adjuster is used to adjusting between transverse direction between them
Away from.Adjuster can be manipulated to increase or reduce the horizontal spacing between the laterally flared support pair of each pair, so as to adjust sawmilling
The working depth of frame.When adjuster increases horizontal spacing, the working depth of sawhorse is just reduced.Similarly, adjuster is worked as
When reducing horizontal spacing, the working depth of sawhorse is just improved.The adjustment of horizontal spacing between the support at each end allows
User smooths sawhorse in the table general work of out-of-flatness.
In the broad aspect of the present invention, heavily loaded, dismountable sawhorse has a crossbeam, and it has longitudinal length and horizontal stroke
To side.At least first end of a pair of brackets support beam on the ground, and at least second pair of support supports horizontal stroke on the ground
Second end of beam.Each support has a upper end, and it is with axially extending recessed as being formed wherein for border using end wall
Groove, for engaging at least four connector arranged along crossbeam.
At least a pair of connectors and at least second pair of connector are arranged in two relative transverse sides of crossbeam, at least
A pair of connectors and at least second pair of connector are longitudinally spaced.Each connector further comprises that one extends downwardly from crossbeam
Block tongue, and the axially extending engagement with respective holder, for supporting the crossbeam above every support.
Each pair support at a certain angle with crossbeam splay apart, for forming sawhorse.
Brief description of the drawings
Figure 1A is the side view of one embodiment of the present invention, shows that heavily loaded, dismountable sawhorse has by a pair
Support is supported on the horizontal gird at both ends；
Figure 1B is the end view of Figure 1A sawhorse, shows the thread for adjusting sawhorse one end height；
Fig. 2 is a kind of perspective view of the one end of embodiment of sawhorse, shows the company extended downwardly from horizontal gird
Connect device block tongue and the balance bracket being connected with block tongue；
Fig. 3 A to 3C show a kind of a kind of embodiment of forming step in a pair of connectors block tongue, more specifically,
Transverse side cuts the first vertical slot, cuts and is used with the second longitudinally spaced vertical slot of the first slit, removal matrix material
In the interconnection of the first slit and the second slit, and open block tongue and be used to receive tubular bracket respectively.Fig. 3 C are further illustrated
The cross section of the upper end for the support being connected is oriented with it；
Fig. 3 D are the bottom perspective views of a horizontal gird part with connector block tongue；
Fig. 3 E are the end perspective views of the part of flute profile horizontal gird, and the horizontal gird has the connector formed wherein
Block tongue and the lower wall insert in cycle；Fig. 3 F are the end views of the part of the flute profile horizontal gird described in Fig. 3 E；
Fig. 4 is the sectional view through the horizontal gird of connector block tongue, shows one in a pair of tubular brackets and block tongue
Engagement, another cross section that balance is engaged with relative block tongue；
Fig. 5 A and 5B are the end views of Figure 1A sawhorse, are shown using thread respectively from relatively low position to rise
Position adjust the height of sawhorse one end；
Fig. 5 C are the horizontal gird of the sawhorse of Figure 1A dismounting and the view of two supports；
Fig. 6 A and 6B are the section views of the connector of one end of the Fig. 5 A and 5B that are each passed through connector block tongue horizontal gird
Figure, and show the change of the connection during height adjusts.
Embodiment
It refer to Figure 1A and 1B, a kind of embodiment of heavily loaded sawhorse 10 is included with longitudinal length and transverse side
Support beam 20, support beam 20 are substantially horizontal, and only by 40 adjacent the first couple of first end with support beam 20 when in use
Staking 30 and the second pair independent rack 50 adjacent with the second end 60 of support beam 20 support.Support beam 20, which has, to be adapted to receive
Heavy duty or the upper surface 70 of workpiece, by a pair of brackets 30 and second pair of support 50 from floor, ground or other substrate B
Support.A pair of brackets 30 is extended downwardly to be engaged with substrate, and is opened in transverse direction with inverted " V " type.Similarly, second pair of branch
Frame 50 extends downwardly, and is also opened in transverse direction with inverted " V " type.This opening provides support and horizontal stability simultaneously.The
The longitudinal pitch S of a pair of brackets 30 and second pair of support 50 provides longitudinal stability.A pair of brackets 30 and second pair of branch
Frame 50 be need not necessarily lie at the end of support beam 20, and only edge is separated by.
Each independent rack 80 is removable to be connected to support beam 20 with lockable, for allowing sawhorse 10 to be easy to tear open
Unload, to store or transport.Each in two supports 80,80 in each pair support 30,50 by adjuster 90 adjustably
It is spaced apart, for adjusting the horizontal spacing between two supports.
Fig. 2 is refer to, support beam 20 has two relative transverse sides, i.e. right and left.Carried for every support 80
For connector or block tongue 100, first pair of block tongue 100 is provided for a pair of brackets 30 at first end 40,100, one block tongues exist
The right side of support beam 20, a block tongue is on the left side of support beam 20.Similarly (although not showing), it is the at the second end 60
Two pairs of supports 50 provide second pair of block tongue 100, and 100, block tongue is on the right side of support beam 20, and a block tongue is in support beam 20
The left side.Every support 80 has axially extending groove 110 at upper end 120.Each self-supporting beam 20 of block tongue 100 is thrown downwards
Penetrate, and there is free end 130, it is used for the axially extending recess 110 for inserting its respective holder 80.
In one embodiment, support beam 20 can be structural beams, and it has lateral sidewalls and at least one at it
Between Longitudinal extending net.As illustrated, support beam is a linear hollow pipe, it has four walls around hollow inside, shape
The upper wall 140 of networking or operative upper surface, bottom web or wall 150, right side wall 160 and left side wall 170.Can be from right side wall 160
Block tongue 100 is formed with left side wall 170.
Fig. 3 A to Fig. 3 C are refer to, block tongue 100 can be formed at hollow pipe.As shown in Figure 3A, in face of side wall, i.e. right side wall
When 160, the first slit 180 can be cut out completely through right side wall 160 to hollow inside, started from neighbouring upper wall 140, eventually
Terminate at neighbouring lower wall 150.As shown in Figure 3 B, the second slit 190 can be cut out completely through right side wall 160 to hollow inside,
Second slit 190 and the first slit 180 are longitudinally spaced, begin again at neighbouring upper wall 140, terminate at neighbouring lower wall 150.
Finally, Fig. 3 C are refer to, by removing longitudinal portion along lower wall 150 between the first slit 180 and the second slit 190
Point, the first slit 180, the second slit 190 is interconnected so as to form free end 130, only block tongue 100 and neighbouring upper wall 140
Support beam 20 keeps connection.Support support section 150F is formed by remaining lower wall 150.
As shown in Figure 3 D, block tongue 100 can be formed similarly on left side wall 170, generally relative with the first block tongue, be used for
First pair of block tongue for receiving a pair of brackets 30 is provided.Further, can on the left side at the second end 60 of neighbouring support beam 20 and
The right side sets second pair of block tongue to receive second pair of support 50.
As shown in FIGURE 3 E, crossbeam can be that the U-type groove shape rotated with the transverse side 160,170 extended downwardly is transversal
Face, upper wall 140 form net.As foregoing embodiment, without continuous lower wall, along longitudinal crossbeam 20 periodically
Bottom plate 151 is attached, forms periodic lower wall in the position of every support, and provide support support section 150F.
As shown in Fig. 2 and Fig. 3 C, the upper end 120 of every support 80 has axially extending recess 110, its with peripheral wall 220,
220 be border.Every support 80 can also be linear hollow pipe, wherein groove 110 is internally formed by hollow, although recessed
Groove is only needed at the peripheral wall at upper end 120, but it extends to the length of support or height.The upper end of every support 80
120 end peripheral wall 220,220 is spaced apart corresponding with the longitudinal pitch between the first slit 180 and the second slit 190.
Further, the first slit 180 and the second slit 190 have the width for the wall thickness size that can receive end peripheral wall 220,220
Degree or otch 230.Further, the horizontal peripheral wall 240,240 of the upper end 120 of every support 80 provides guiding, for inciting somebody to action
Support 80 is transversely fixed to block tongue 100, and longitudinal rotary motion of the support 80 of mesh control.
First slit 180 is parallel with the second slit 190, to receive the parallel end peripheral wall of support 80
220、220.The upper end 120 of every support engage the upper length 250 of otch 230 or the upper wall 140 of support beam 20 or they
Combination.Therefore, the load in support beam 20 is channeled directly into support 80.As shown in one embodiment, when from side
During observation, the first slit 180 and the second slit 190 are substantially vertical and towards the support 80 perpendicular to support beam 20.At another
In embodiment, the first parallel slit 180 and the second slit 190 can form angle between crossbeam 20, further to make the
A pair of brackets 30 and second pair of opened with certain angle of support 50.
The size of the width of otch 230 is roughly the same with the width of end peripheral wall 220, for reducing it to greatest extent
Between angular movement, and to greatest extent reduce sawhorse 10 lengthwise movement, to increase its stability.
As shown in figure 4, the groove 110 of every support 80 has the transverse width for being enough to allow the every angle adjustment of support 80
Spacing between W or horizontal peripheral walls 240,240, when being removably couplable to its corresponding block tongue 100, them can be adjusted
Between horizontal spacing.Every support 80 movably can be fixed to by its corresponding card by any of locking device
Tongue 100.As illustrated, in one embodiment, it can come support 80 movably is fixed into it using spiral shell peg or pin 260
Corresponding block tongue 100, to avoid the missing of the support 80 when mobile support beam 20.Pin 260 can pass through the horizontal stroke in every support
The hole 270 formed on outside leg 240,240 and block tongue 100.Hole 270 and 260 respective diameter of pin can be oversize with
Avoid receiving a large amount of or any load at support beam 20.Had strong market potential using one also cross support to every in 30,50
The upper end 120,120 of individual support and respective block tongue 100,100.As shown in figure 1, spring clip 280 or other guarantors can be used
Holder is held in position in pin 270.
Referring again to Fig. 1, Fig. 5 A and 5B, two supports 80 of each pair, 80 phases in a pair of brackets 30 and second pair of support 50
The relative direction for keeping them that connects simultaneously provides stability.In one embodiment, support passes through tune to 30 or 50
Section device 290 (such as thread) is interconnected with one another, the horizontal spacing S between support for manipulating each pair support 30 or 50.It is logical
Cross paramount to adjustment of the support to the horizontal spacing S between 30 or 50 two supports 80,80, the height H adjustment of support beam 20
In support pair.The adjustment of the horizontal spacing of two pairs of supports can be horizontal or introduces specific offset or angle along crossbeam 20.
As shown in Figure 5A, display adjustment support is to a pair in 30 or 50 to wide horizontal spacing SW, supported for establishing
Force down height H in the end 60 of first end 40 or second of beam 20D.As shown in Figure 5 B, it is shown that adjustment Fig. 5 A support is to extremely narrow
Horizontal spacing SN, for establishing the hoisting depth H of support beam 20E.Therefore, by between the transverse direction between adjustment a pair of brackets 30
Away from the S or further horizontal spacing between second pair of support 50 of adjustment, can smooth support beam 20 or place it in one
The workpiece that individual specific angle is supported thereon with accommodating.
As shown in Figure 6 A and 6B, the spacing between the horizontal peripheral wall 240,240 of the upper end 120 of support 80, and block tongue 100
Free end 130 and lower wall 150 between spacing assist define support 80 relative to crossbeam 20 angle rotate and support to 30
Or 50 horizontal spacing S.As shown in Figure 6A, for support pair two supports wide horizontal spacing SW(as shown in Figure 5A),
Upper end 120 can rotate into support beam 20.As shown in Figure 6B, for support pair two supports narrow horizontal spacing SN(such as
Shown in Fig. 5 B), upper end 120 can be rotated away from support beam 20, and the support section 150F around lower wall 150 rotates.
Fig. 5 C are refer to, the dismounting for sawhorse 10, the lock of a pair of brackets 30 and second pair of support 50 can be removed
Determine device or pin 260, rack groove 110 is taken out at respective block tongue 100.Have the two of four independent racks 80,80,80,80
It can be used as compact equipment is placed side by side to be used to store or transport on support 30,50 and support beam 20.In this embodiment,
Adjuster 290 or thread are generally connected to support to respective first installation on each support in 30,50 or fixing point
310 and second installation or fixing point 320 between.Figure 1A, Figure 1B and Fig. 5 C are refer to, in order to store, the distal end 300 of thread can
To be disconnected at the first fixing point 310 on a support of support pair, second on another support of support pair is solid
The rotation of fixed point 320, is temporarily integrally reconnected to and the 3rd fixing point 330 in the same supports of the second fixing point 320.
In one embodiment, the first fixing point 310, the second fixing point 320 and the 3rd fixing point 330 are alignment pin, bolt or similar
Thing.
In one embodiment, heavily loaded, detachable sawhorse can use the commercially available steel making of linear hollow pipe.At one
In embodiment, the square tube being five feet long that 2 inches × 2 inch of section, may be used as support beam at about 1/4 inch of wall thickness.
, can be at upper wall at about 6 inches of one end in the first end of self-supporting beam or the second end on the first side wall (such as right side wall)
The scope of hollow inside nearby reaches lower wall and nearby or through lower wall cuts the first long slit of about 1-3/4 inches.Cutting
The second long slit of about 1-3/4 inches, it is longitudinally spaced and in parallel with the first slit.By the thickness for removing at least lower wall
Spend to remove the lower wall between the first slit and the second slit to expose the end 130 of block tongue 110.
Each support can be 31 inches of long square tubes in 2 inches × 1 inch of section, have about 1/8 inch of wall thickness.
Therefore, corresponding to support end peripheral wall wall thickness, the first slit and the second slit have about 1/8 inch of kerf width
Or in view of tolerance, it is little wider.Corresponding to the longitudinal pitch of the end peripheral wall 220,220 of support, the first slit and second
Slit is in their longitudinal length longitudinally spaced about 2 ".
It is interconnected so as to form about by longitudinal component the first slit 180 and the second slit 190 that remove lower wall
1-3/4 inches are wide and the block tongue that is extended downwardly from upper wall.By the way that in lower wall edge portions recessing, the first slit can be caused
It is connected with each other with the second slit to discharge block tongue end 130, marginal portion is limited by lower wall and the first side wall, and positioned at first
Between slit and the second slit.The thickness of the recessed about block tongue of lower wall, i.e. wall thickness, further, the wall of numerical value and pedestal upper end
It is thick quite.Therefore, after connection, support can with angle rotate simultaneously substantially vertically.Can be from the first lateral sidewalls and second
Lateral sidewalls mutually to cut more than 3 block tongues in specie, to form the block tongue that sum is at least 4, in the first end of support beam
With respectively have a pair of block tongues at the second end.
Applicant have observed that in the formation of block tongue, the tolerance of all otch is about 1/500 inch.Such tolerance carries
Fitting or tight fit of the support to block tongue are supplied, which limit the lengthwise movement of sawhorse.
Every one side in four sections of rectangular tube can coordinate each in four block tongues of horizontal gird so that each
The engagement slot of upper end groove 110 of support or the top of otch or engagement upper wall 140.Each pair support 30,50 is consolidated by pin
Surely support beam 20 is arrived.
For each pair support, not only every support is through concentric holes but also their corresponding block tongues are also through concentric holes.So
A rhizopodium is inserted afterwards with the sufficiently long pin also cross supporting support and horizontal gird width, through the concentric holes.The pin can
To be secured in place by a simple geometrical clamp.
Finally, installation thread is connected with each other the support in each pair support, for adjusting the transverse direction between two supports
Spacing.Thread may be mounted at from pedestal upper end at about 20 inches.
It is found by the applicant that this specific embodiment end 40,60 every end can vertical adjusting working depth it is big
About 1 inch.This causes sawhorse to have maximum about 2 inches slope.Therefore, on the slope with no more than about 2 inches
Ground on, this specific embodiment can be adjusted to provide horizontal working surface.
Claims (5)
1. a kind of detachable sawhorse, the detachable sawhorse includes：
One crossbeam, the crossbeam have longitudinal length, and crossbeam is hollow, and structural tube has upper wall and lower wall and cross side
Face；
At least 4 supports, a pair of brackets support the first end of ground entablature, and the of second pair of support support ground entablature
Two ends, every support have upper end, and the upper end has axially extending as being formed wherein for border using end peripheral wall
Groove；And
At least four connector, at least four connector arrange that at least a pair of connectors is arranged in crossbeam along crossbeam
On relative transverse side, second pair of connector is arranged in the relative cross side of the crossbeam longitudinally spaced with a pair of connectors
Face；Wherein, each connector also includes forming longitudinally spaced slit pair laterally along side wall, the slit to from upper wall to
Under, and longitudinally through the lower wall between longitudinally spaced slit, to form block tongue therebetween；And
Wherein, each block tongue is meshed with the axially extending groove of respective holder, to support the crossbeam on every support, each pair
Support from crossbeam with an angle laterally splay apart, to form sawhorse.
2. detachable sawhorse as claimed in claim 1, wherein, every support is hollow, rectangular configuration pipe, and it has outer
Leg, axially extending groove is formed between peripheral wall.
3. detachable sawhorse as claimed in claim 1 or 2, wherein, every support further comprises along among support
Fixing point, on a support, the second fixing point is located on another support the first fixing point, and
Wherein, the first adjuster extends between first fixing point and the second fixing point of a pair of brackets, and the second adjuster exists
Extend between the first fixing point and the second fixing point of second pair of support；
Wherein, the horizontal spacing between two supports of the opening in the first adjuster regulation a pair of brackets, and adjust at it
On crossbeam working depth, and
Wherein, the second adjuster adjusts the horizontal spacing between two supports of the opening in second pair of support, and adjusts at it
On crossbeam working depth.
4. detachable sawhorse as claimed in claim 3, wherein, each adjuster is thread.
5. sawhorse as claimed in claim 4, wherein, in each support in a pair of brackets and second pair of support extremely
Few one further comprises the 3rd fixing point, for integrally storing thread on a support.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/344,203 US8439164B1 (en) | 2012-01-05 | 2012-01-05 | Heavy duty, knock-down sawhorse with leveling capability |
| CA2,763,238 | 2012-01-05 | ||
| US13/344,203 | 2012-01-05 | ||
| CA2763238A CA2763238C (en) | 2012-01-05 | 2012-01-05 | Heavy duty, knock-down sawhorse with leveling capability |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103192358A CN103192358A (en) | 2013-07-10 |
| CN103192358B true CN103192358B (en) | 2018-02-23 |
Family
ID=48715266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210595888.9A Active CN103192358B (en) | 2012-01-05 | 2012-12-28 | Heavily loaded detachable sawhorse with smoothing ability |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103192358B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10859246B2 (en) * | 2018-08-01 | 2020-12-08 | Fluence Bioengineering, Inc. | Systems and methods for collapsible lighting fixtures |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2418062A1 (en) * | 1978-02-28 | 1979-09-21 | Roumagere Jean Louis | Demountable joinery trestle with A=frame - has beam spanning double barred frames using horizontal tongue and groove in leg to beam joints |
| GB2356597A (en) * | 1999-10-18 | 2001-05-30 | Walter Cyrus Blackburn | A workbench |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US592574A (en) * | 1897-10-26 | Trestle | ||
| US2721060A (en) * | 1955-10-18 | morain | ||
| US1819252A (en) * | 1929-09-20 | 1931-08-18 | Defiance Sales Corp | Horse |
| US3036657A (en) * | 1960-10-18 | 1962-05-29 | Arthur M Ladue | Sawhorse brackets |
| US4325463A (en) * | 1980-10-06 | 1982-04-20 | Taylor Frank E | Sawhorse |
| US4711319A (en) * | 1986-12-19 | 1987-12-08 | Carmelo Sansotta | Saw horse |
| US6810996B2 (en) * | 2001-05-04 | 2004-11-02 | Brian D. Rump | Bracket for a sawhorse and other multiple piece stands |
| CN2623421Y (en) * | 2003-04-23 | 2004-07-07 | 仇建平 | Horizontal frame |
| US20070131306A1 (en) * | 2005-12-09 | 2007-06-14 | Snider Gregory S | Tool support device |
-
2012
- 2012-12-28 CN CN201210595888.9A patent/CN103192358B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2418062A1 (en) * | 1978-02-28 | 1979-09-21 | Roumagere Jean Louis | Demountable joinery trestle with A=frame - has beam spanning double barred frames using horizontal tongue and groove in leg to beam joints |
| GB2356597A (en) * | 1999-10-18 | 2001-05-30 | Walter Cyrus Blackburn | A workbench |
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| Publication number | Publication date |
|---|---|
| CN103192358A (en) | 2013-07-10 |
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