CN101259919B - Sliding fork device - Google Patents
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- CN101259919B CN101259919B CN2008100824557A CN200810082455A CN101259919B CN 101259919 B CN101259919 B CN 101259919B CN 2008100824557 A CN2008100824557 A CN 2008100824557A CN 200810082455 A CN200810082455 A CN 200810082455A CN 101259919 B CN101259919 B CN 101259919B
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Abstract
The invention provides a sliding york which can process stretching movement swimmingly and reduce cost even if a carry object has heavy weight or stretching stroke. The sliding york apparatus (1) includes a fixing york (11), a middle york (21) supported to slide along length direction relative to the fixing york (11), and a front york (31) supported to slide along length direction relative to the middle york (21). A drive pinion driven by a rotary drive device (2) mounted on the fixing york (11) engages with a rack (22) mounted on the middle york (21) in the sliding york apparatus (1). All movable yorks (the middle york (21) and the front york (31)) are driven directly by the rotary drive device (2).
Description
Technical field
The present invention relates to be used for the improvement of sliding york (slide fork) device of goods shifting apparatus.
Background technology
The sliding fork device that be used for loading-unload machines such as conveyer, fork truck or hoisting crane, carries out the handing-over of goods; Has the swinging fork more than 2 grades that carries out slide relative with respect to skid-resistant fixation fork; And constitute by driver train and interlinked mechanism; This driver train to be supported for can slide at length direction with respect to fixation fork (in patent document 1 for fixed frame F, in patent document 2, be one-level fork 31), drive near the higher level's of fixation fork swinging fork (in patent document 1 for arm A1, be that secondary pitches 32 in patent document 2); This interlinked mechanism for the slip along with this swinging fork make higher level's swinging fork more (in patent document 1 for arm A2 and A3, be three grades of forks 33 and level Four fork 34 in patent document 2) to near the higher level's of fixation fork the identical direction of swinging fork slide (for example, with reference to patent document 1 and 2).
Patent document 1: TOHKEMY 2006-176300 communique (Fig. 1)
Patent document 2: TOHKEMY 2006-1658 communique (Fig. 5, Fig. 7-9)
Because in the formation of this existing sliding fork device; Drive swinging fork (arm A1, secondary fork 32) near its higher level with respect to fixation fork; And through with the above-mentioned interlinked mechanism of the mobile interlock of this swinging fork; Make higher level's swinging fork more (arm A2, three grades of forks 33) and higher level's swinging fork (arm A3, level Four fork 34) flexible, therefore, owing to transmit the formation of swinging fork slip that the propulsive effort that is installed in the actuating device on the fixation fork makes higher level than complicacy etc.; So cost increases; And especially under the bigger situation of the heavier or flexible stroke of the weight of carried object, existence can not be carried out the situation of expanding-contracting action of higher level's swinging fork (preceding end yoke) swimmingly.
Summary of the invention
Therefore, the present invention is in view of above-mentioned condition, and the problem that solve does, a kind of sliding fork device is provided, even under the bigger situation of the heavier or flexible stroke of the weight of carried object, and the expanding-contracting action of end yoke before also can carrying out swimmingly, and can cost-cutting.
In order to solve above-mentioned problem; Sliding fork device of the present invention has the swinging fork more than 2 grades that carries out slide relative with respect to fixation fork; And has an actuating device; This actuating device make by be installed in Drive pinion, drive sprocket or driving pulley that rotating driving device that said fixing sticks drives, or be erected at before and after sprocket wheel or driving chain between the belt wheel or rotating band, the tooth bar of sticking with the front end that is installed in the higher level who puts carried object, extend along the length direction of this fork, chain or band or bonded block combine synchronously.
Here; Above-mentioned actuating device is to make above-mentioned Drive pinion, drive sprocket or driving pulley and be installed in above-mentioned tooth bar, the chain that above-mentioned front end sticks or be with the ingear device synchronously; And preferably constitute; The tooth bar, chain or the synchronous band that extend along the length direction of this fork also are installed on the swinging fork before above-mentioned beyond the end yoke; And make and the coaxial mounted Drive pinion of above-mentioned Drive pinion, drive sprocket or driving pulley, drive sprocket or driving pulley and this tooth bar, chain or band engagement synchronously, and through all swinging forks of above-mentioned rotating driving device direct drive.
And; The present invention is a kind of sliding fork device; Have fixation fork, be supported to pitching and be supported to pitching the preceding end yoke that slides along its length with respect to the centre that this fixation fork slides along its length with respect to this centre; Preferably constitute, in the middle of above-mentioned on the upper and lower surfaces of the horizontal plate portion of the matrix of fork, the track of the fixing respectively overlappingly line slideway that extends along the length direction of this fork is looked on the plane; And the upper surface of the matrix of said fixing fork and above-mentioned before on the lower surface of matrix of end yoke; Fix respectively along a plurality of sliding units of the length direction separation of this fork, the sliding unit of above-mentioned preceding end yoke is combined with the track of the upside of above-mentioned middle fork, and the sliding unit that said fixing is pitched combines with the track of the above-mentioned middle downside of pitching.
And; Preferably constitute; The matrix that makes above-mentioned middle fork is the H shape steel of upper and lower opening ground configuration; Make the matrix of above-mentioned preceding end yoke be channel-section steel in the configuration of open lower side ground; Make the matrix of said fixing fork be channel-section steel in the configuration of last side opening ground, and on by the H shape steel of fork in the middle of above-mentioned side opening and above-mentioned before in the space that forms of the open lower side of channel-section steel of end yoke and the channel-section steel of pitching by the open lower side and the said fixing of the above-mentioned middle H shape steel of pitching in the space that forms of side opening, set the line slideway about above-mentioned.
According to sliding fork device of the present invention; For having the sliding fork device that carries out the swinging fork more than 2 grades of slide relative with respect to fixation fork; And has actuating device; This actuating device make by be installed in Drive pinion, drive sprocket or driving pulley that rotating driving device that said fixing sticks drives, or be erected at before and after sprocket wheel or driving chain between the belt wheel or rotating band; The tooth bar of sticking with the front end that is installed in the higher level who puts carried object, extend along the length direction of this fork, chain or band or bonded block combine synchronously; Therefore owing to be installed in tooth bar that front end sticks etc. and the directly engagements such as Drive pinion that drive by the rotating driving device that is installed on the fixation fork, and via this Drive pinion etc. and tooth bar etc. through end yoke before the rotating driving device direct drive; Even so under the bigger situation of the heavier or flexible stroke of the weight of carried object, the expanding-contracting action of end yoke before also can carrying out swimmingly.And, because can simplified structure, so can realize the raising of reliability and the reduction of cost.
And; Constitute; Above-mentioned actuating device is to make above-mentioned Drive pinion, drive sprocket or driving pulley and be installed in above-mentioned tooth bar, the chain that above-mentioned front end sticks or be with the ingear device synchronously; And the tooth bar that extends along the length direction of this fork, chain or band synchronously be installed also on the swinging fork beyond the end yoke before above-mentioned; And make and the coaxial mounted Drive pinion of above-mentioned Drive pinion, drive sprocket or driving pulley, drive sprocket or driving pulley and this tooth bar, chain or band engagement synchronously; And through all swinging forks of above-mentioned rotating driving device direct drive, this moment is except above-mentioned effect, because the position stability of the swinging fork beyond the preceding end yoke; And all swinging forks are via independent Drive pinion, drive sprocket or driving pulley and tooth bar, chain or band and by direct drive, so the expanding-contracting action of end yoke before can further carrying out swimmingly synchronously.
And; Be a kind of sliding fork device; Have fixation fork, be supported for can with respect to this fixation fork slide along its length in the middle of fork and be supported preceding end yoke into sliding along its length with respect to this centre fork, and preferably constitute, on the upper and lower surfaces of the horizontal plate portion of the matrix of pitching in the middle of above-mentioned; The track of the fixing respectively line slideway that extends along the length direction of this fork is looked overlappingly on the plane; And the upper surface of the matrix of said fixing fork and above-mentioned before on the lower surface of matrix of end yoke, the fixing respectively a plurality of sliding units that separate along the length direction of this fork, make above-mentioned before the sliding unit of end yoke combine with the track of the above-mentioned middle upside of pitching; And the sliding unit of said fixing fork is combined with the track of the downside of above-mentioned middle fork; At this moment, except above-mentioned effect since up and down orbit plane look be fixed on overlappingly in the middle of on the length direction of upper and lower surfaces of horizontal plate portion of matrix of fork; So under state, link them fixing securely by the horizontal plate portion of the matrix of fork in the middle of up and down track is clamped; And because that the section factor of middle fork becomes is big, rigidity strengthens, so even in the weight of carried object under the heavy especially or king-sized situation of flexible stroke, the expanding-contracting action of end yoke before also can suppressing to carry out swimmingly agley.And, through the simple structure up and down of fork in the middle of line slideway is provided in, further cost-cutting.
And; Constitute; Make above-mentioned in the middle of the matrix of fork be the H shape steel of upper and lower opening ground configuration, make above-mentioned before the matrix of end yoke be channel-section steel in the configuration of open lower side ground, make the channel-section steel of matrix for disposing of said fixing fork on last side opening ground; And on by the H shape steel of fork in the middle of above-mentioned side opening and above-mentioned before in the space that forms of the open lower side of channel-section steel of end yoke and the channel-section steel of pitching by the open lower side and the said fixing of the H shape steel of pitching in the middle of above-mentioned in the space that forms of side opening; Set above-mentioned line slideway up and down, at this moment, except above-mentioned effect; Owing to sliding guide mechanism (line slideway up and down) is provided in the opening of each fork, so can realize lightweight and densification.And, simplify owing to constitute very, and the matrix of each fork forms by gauge material, so cost-cutting significantly.
Description of drawings
Fig. 1 is the planar view of the sliding fork device of embodiment of the present invention.
Fig. 2 is the vertical profile front elevation of the left side fork of swinging fork (middle fork and preceding end yoke) elongation state, (a) formation of expression tooth bar, miniature gears and block, (b) formation of expression sliding guide mechanism (line slideway up and down).
Fig. 3 is the vertical profile front elevation of the left side fork of swinging fork (middle fork and preceding end yoke) contraction state, (a) formation of expression tooth bar, miniature gears and block, (b) formation of expression sliding guide mechanism (line slideway up and down).
Fig. 4 is the vertical profile back view of left side fork.
The specific embodiment
According to accompanying drawing embodiment of the present invention is at length explained below, but the invention is not restricted to mode shown in the drawings, comprise all embodiments that satisfy the main points of putting down in writing in the patent claim.In addition, in this manual, a direction (with reference to arrow F among the figure) of establishing each fork elongation is the place ahead, establish when the place ahead about be about, establishing from the figure of left sides is front elevation.
Fig. 1～Fig. 4 is the instruction diagram of formation of the sliding fork device of expression embodiment of the present invention; Fig. 1 is a planar view; Fig. 2 is the vertical profile front elevation of the left side fork of swinging fork (middle fork and preceding end yoke) elongation state; Fig. 3 is the vertical profile front elevation of the left side fork of swinging fork (middle fork and preceding end yoke) contraction state, and Fig. 4 is the vertical profile back view of left side fork.In addition, the formation of Fig. 2 (a) and Fig. 3 (a) expression tooth bar, miniature gears and block, the formation of Fig. 2 (b) and Fig. 3 (b) expression sliding guide mechanism (line slideway up and down).
In the drawings, sliding fork device 1 by fixation fork 11, be supported for can with respect to fixation fork 11 slide along its length in the middle of fork 21, be supported for can with respect to the centre pitch the 21 preceding end yokes 31 that slide along its length and be fixed on the fixation fork 11 and direct drive before the actuating device etc. of end yoke 31 constitute.
At first, the slip support structure to centre fork 21 and preceding end yoke 31 describes.Because fork 21L and left front end yoke 31L in the middle of left fixation fork 11L shown in Figure 1, the left side, with right fixation fork 11R, right in the middle of fork 21R and right front end yoke 31R be identical structure, so be that representative describes with the left side fork.
As shown in Figure 4, the matrix of left fixation fork 11L is the channel-section steel (channel-section steel) in the configuration of last side opening ground, and the matrix of fork 21L is the H shape steel of upper and lower opening ground configuration in the middle of the left side, and the matrix of left front end yoke 31L is the channel-section steel (channel-section steel) of open lower side ground configuration.
On the channel-section steel of left fixation fork 11L in the side opening; Through bolt 14 ..., be fixed with via coupling plate 12 before and after 2 (also can for more than 3) sliding units 13,13 (with reference to Fig. 2 (b) and Fig. 3 (b)); And in the open lower side of the channel-section steel of left front end yoke 31L, through bolt 35 ..., be fixed with via coupling plate 33 before and after 2 (also can for more than 3) sliding units 34,34 (with reference to Fig. 2 (b) and Fig. 3 (b)).
And; In the middle of as a left side the horizontal plate portion of the H shape steel of the matrix of fork 21L in the side opening; Through bolt 27 ..., be fixed with along its length the track 25 that (fore-and-aft direction) extends via last coupling plate 23; And in the middle of as a left side in the open lower side of horizontal plate portion of the H shape steel of the matrix of fork 21L, through bolt 28 ..., be fixed with along its length the track 26 that (fore-and-aft direction) extends via following coupling plate 24.
And; Owing to be that track 25 combines with the sliding unit 34,34 of front and back and the last line slideway 41 that relatively slides along fore-and-aft direction; And be that track 26 combines with the sliding unit 13,13 of front and back and the following line slideway 42 that relatively slides along fore-and-aft direction; So through this simple formation; Fork 21L in the middle of the left side (fork 21R in the middle of right) is supported to sliding along fore-and-aft direction with respect to left fixation fork 11L (right fixation fork 21R), and left front end yoke 31L (right front end yoke 31R) is supported to sliding along fore-and-aft direction with respect to fork 21L in the middle of the left side (fork 21R in the middle of right).
As stated; Because on the length direction of the upper and lower surfaces of the horizontal plate portion of the matrix of centre fork 21; Track 25,26 planes are up and down looked overlappingly and are fixed, so under the state of the horizontal plate portion of the matrix of fork 21, link them fixing securely in the middle of by track 25,26 clampings up and down; And; Because that the section factor of middle fork 21 becomes is big, rigidity strengthens, so even under the heavy especially or king-sized situation of flexible stroke, also can suppress crooked and expanding-contracting action end yoke 31 before carrying out swimmingly in the weight of carried object.
And, owing in the opening of each fork 11,21 and 31, be equipped with sliding guide mechanism ( line slideway 41,42 up and down), so can realize lightweight and densification.
And, owing to be to set the simple structures of line slideway 41,42 up and down, and make the matrix of each fork 11,21 and 31 be channel-section steel and H shape steel, so cost-cutting significantly as gauge material at each 11,21 and 31 of fork.
Then, the formation to the actuating device of driving movable fork 31 describes.That kind as shown in Figure 1, fixation fork 11 be with about fixation fork 11L and 11R link and integrated, rotating driving devices 2 such as geared motor for example are installed on this fixation fork 11, on the output shaft of this rotating driving device 2, link and be fixed with spur gear 3A.
By about bearing sub-assembly 4L and 4R support about pinion shaft 5L and 5R on; Link respectively through key 10 (with reference to Fig. 4) and to be fixed with major diameter miniature gears 6 and minor diameter miniature gears 7; And, about pinion shaft 5L and 5R via about Hooke's coupling 9L and 9R and link by connection shaft 8.And, on right pinion shaft 5R, link and be fixed with and above-mentioned spur gear 3A ingear spur gear 3B.
And, about the left and right directions of preceding end yoke 31L and 31R inboard, link be fixed with above-mentioned about 6,6 engagements of major diameter miniature gears and along fore-and-aft direction extend about tooth bar 32,32.Therefore, the driving torque of rotating driving device 2 is passed to spur gear 3A and 3B, right pinion shaft 5R and right major diameter miniature gears 6, and drives right front end yoke 31R through the tooth bar 32 with these miniature gears 6 ingear right sides.And; Likewise; The driving torque of rotating driving device 2 is passed to left pinion shaft 5L and left major diameter miniature gears 6 via right Hooke's coupling 9R, connection shaft 8 and left Hooke's coupling 9L, and through synchronously driving left front end yoke 31L with the tooth bar 32 in this miniature gears 6 ingears left side with right front end yoke 31R.
So; Tooth bar 32,32 before being installed on the end yoke 31 and the Drive pinion 6,6 that is driven by the rotating driving device 2 that is installed on the fixation fork 11 directly mesh; And via this Drive pinion 6,6 and tooth bar 32,32 and by end yoke 31 before rotating driving device 2 direct drives; Even so under the bigger situation of the flexible stroke that puts or swinging fork heavier in the weight of the carried object on the preceding end yoke 31, the expanding-contracting action of end yoke 31 before also can carrying out swimmingly.And, since simple in structure, so can realize the raising of reliability and the reduction of cost.
In addition; The formation of the actuating device of driving movable fork 31 of the present invention is not limited to above-mentioned formation; Also can replace tooth bar 32,32 and adopt chain or the synchronous band that extends along fore-and-aft direction; And drive sprocket or driving pulley are combined with this chain or synchronous band, this drive sprocket or driving pulley are driven by the rotating driving device 2 that is installed on the fixation fork 11.
And, about in the middle of the left and right directions of fork 21L and 21R inboard, link be fixed with above-mentioned about 7,7 engagements of minor diameter miniature gears and along fore-and-aft direction extend about tooth bar 22,22.Therefore, the driving torque of rotating driving device 2 and above-mentioned likewise is passed to right pinion shaft 5R and right minor diameter miniature gears 7, and through the tooth bar 22 with these miniature gears 7 ingear right sides drive right in the middle of fork 21R.And the driving torque of rotating driving device 2 and above-mentioned likewise is passed to left pinion shaft 5L and left minor diameter miniature gears 7, and through with the tooth bar 22 in this miniature gears 7 ingears left side with right in the middle of fork 21R synchronously drive fork 21L in the middle of the left side.
In addition; For example, under the situation that tooth pitch is identical and moduluses miniature gears 6 and 7 are identical of tooth bar 32 and 22, the pitch circle diameter that makes minor diameter miniature gears 7 be major diameter miniature gears 6 pitch circle diameter 1/2; That is, make in the middle of fork 21 moving velocity be preceding end yoke 31 moving velocity 1/2.
Like this; Do not pitching on the preceding end yoke 31 middle fork 21 in addition, of 21 ground direct drives by the rotating driving device 2 that is installed on the fixation fork 11 as swinging fork via the centre; Tooth bar 21,22 also is installed; Drive pinion 6,6 coaxial mounted Drive pinions 7,7 engagements of end yoke 31 before this tooth bar 21,22 and the driving, and through all swinging forks of rotating driving device 2 direct drives, so the position stability of the swinging fork beyond the preceding end yoke 31 (centre fork 21); And all swinging forks are via independently Drive pinion and tooth bar direct drive, so the expanding-contracting action of end yoke 31 before can further carrying out swimmingly.The driving of the swinging fork beyond this preceding end yoke 31 (centre fork 21) not necessarily still in order to carry out above-mentioned expanding-contracting action more swimmingly, preferably drives the swinging fork (centre pitches 21) beyond the preceding end yoke 31.
In addition; Above-mentioned actuating device be make above-mentioned drive sprocket or driving pulley and be installed in before on the end yoke 31 above-mentioned chain or synchronously under the situation with the ingear device; Also can about in the middle of the chain that extends along its length or band synchronously also are installed on fork 21L and the 21R, and make with above-mentioned drive sprocket or with the coaxial mounted drive sprocket of driving pulley or driving pulley and this chain or synchronously band mesh.
Formation according to above-mentioned that kind; Through driven in rotation actuating device 2, can carry out smooth and easy and reliably state that swinging fork as shown in figure 3 (middle fork 21 and before end yoke 31) shrinks, with as Fig. 1 and shown in Figure 2 the state that extends of swinging fork between swinging fork mobile.
The end, front and back of fork 21L is equipped with from stop plate 29F, the 29B of the front and back that left surface is given prominence to the left in the middle of a left side; Be equipped with from stop plate 29F, the 29B of the front and back that right flank is given prominence to the right in the end, front and back of right middle fork 21R; And; For example block 15F, the 15B of the front and back of neoprene system are installed on left fixation fork 11L and right fixation fork 11R, for example block 36F, the 36B of the front and back of neoprene system are installed on left front end yoke 31L and right front end yoke 31R.
Therefore; Under the state that end yoke 31 extends before middle fork 21 such shown in Fig. 1 and Fig. 2 (a) reaches; Back baffle plate 29B about middle fork 21,29B backstop 15B, the 15B backstop about by fixation fork 11, thus middle fork 21 mobile being limited forwards, and; So positive stop 36F, 36F about the preceding baffle plate 29F about this centre fork 21, the preceding end yoke 31 of 29F backstop are preceding end yoke 31 mobile being limited forwards.
And; Under the state that end yoke 31 shrinks before middle fork 21 such shown in Fig. 3 (a) reaches; Preceding baffle plate 29F about middle fork 21,29F positive stop 15F, the 15F backstop about by fixation fork 11, thus middle fork 21 rearward moving are limited, and; Backstop 36B, 36B about the back baffle plate 29B about this centre fork 21, the preceding end yoke 31 of 29B backstop are so preceding end yoke 31 rearward moving are limited.
More than, to can being that the sliding fork device of 3 level structures of 2 grades (middle forks 21 and before end yokes 31) is illustrated with respect to the swinging fork that fixation fork 11 carries out slide relative, but the present invention be not limited to this structure, and swinging fork also can be for more than 3 grades.
Claims (3)
1. a sliding fork device has 2 grades or more multistage swinging fork carrying out slide relative with respect to fixation fork, it is characterized in that,
Has actuating device; This actuating device make by be installed in Drive pinion, drive sprocket or driving pulley that rotating driving device that said fixing sticks drives, or be erected at before and after sprocket wheel or driving chain between the belt wheel or rotating band; The tooth bar of sticking with the front end that is installed in the higher level who puts carried object, extend along the length direction of this fork, chain or band or bonded block combine synchronously
Have fixation fork, be supported for can with respect to this fixation fork slide along its length in the middle of fork and being supported to can be with respect to this centre fork preceding end yoke of slip along its length,
In the middle of above-mentioned on the upper and lower surfaces of the horizontal plate portion of the matrix of fork, at track, make it overlapping on plane angle respectively by the line slideway of the fixing down length direction extension along this fork of the state of track clamping up and down,
The upper surface of the matrix of said fixing fork and above-mentioned before on the lower surface of matrix of end yoke, be separately fixed at a plurality of sliding units that separate on the length direction of this fork,
The sliding unit of above-mentioned preceding end yoke is combined with the track of the upside of above-mentioned middle fork, and the sliding unit of said fixing fork is combined with the track of the above-mentioned middle downside of pitching.
2. the sliding fork device of putting down in writing like claim 1, wherein,
Above-mentioned actuating device is to make above-mentioned Drive pinion, drive sprocket or driving pulley and be installed in above-mentioned tooth bar, the chain that above-mentioned front end sticks or be with the ingear device synchronously,
The tooth bar, chain or the synchronous band that extend along the length direction of this fork also are installed on the swinging fork before above-mentioned beyond the end yoke; And make and the coaxial mounted Drive pinion of above-mentioned Drive pinion, drive sprocket or driving pulley, drive sprocket or driving pulley; With this tooth bar, chain or band engagement synchronously, and through all swinging forks of above-mentioned rotating driving device direct drive.
3. the sliding fork device of putting down in writing like claim 1, wherein,
Make the matrix of above-mentioned middle fork be H shape steel in the configuration of upper and lower opening ground; Make the matrix of above-mentioned preceding end yoke be channel-section steel in the configuration of open lower side ground; Make the matrix of said fixing fork be channel-section steel in the configuration of last side opening ground; On by the H shape steel of fork in the middle of above-mentioned side opening and above-mentioned before in the space that forms of the open lower side of channel-section steel of end yoke and the channel-section steel of pitching by the open lower side and the said fixing of the H shape steel of fork in the middle of above-mentioned in the space that forms of side opening, set the line slideway about above-mentioned.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP055380/2007 | 2007-03-06 | ||
| JP2007055380A JP5040370B2 (en) | 2007-03-06 | 2007-03-06 | Slide fork device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101259919A CN101259919A (en) | 2008-09-10 |
| CN101259919B true CN101259919B (en) | 2012-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100824557A Active CN101259919B (en) | 2007-03-06 | 2008-03-06 | Sliding fork device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5040370B2 (en) |
| CN (1) | CN101259919B (en) |
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| TWI247717B (en) * | 2003-02-03 | 2006-01-21 | Murata Machinery Ltd | Slide fork |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3591073B2 (en) * | 1995-08-24 | 2004-11-17 | 株式会社ダイフク | Multi-stage fork device |
| JP4628776B2 (en) * | 2004-12-24 | 2011-02-09 | 株式会社日立プラントテクノロジー | Support structure for telescopic arm of transfer machine |
-
2007
- 2007-03-06 JP JP2007055380A patent/JP5040370B2/en active Active
-
2008
- 2008-03-06 CN CN2008100824557A patent/CN101259919B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2143500A (en) * | 1983-06-15 | 1985-02-13 | Litton Systems Inc | Telescopic shuttle |
| TWI247717B (en) * | 2003-02-03 | 2006-01-21 | Murata Machinery Ltd | Slide fork |
Non-Patent Citations (3)
| Title |
|---|
| JP昭54-363A 1979.01.05 |
| JP特开平6-298317A 1994.10.25 |
| JP特开平9-40119A 1997.02.10 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2008214050A (en) | 2008-09-18 |
| CN101259919A (en) | 2008-09-10 |
| JP5040370B2 (en) | 2012-10-03 |
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