CN1108194A

CN1108194A - Hand cart

Info

Publication number: CN1108194A
Application number: CN94119451A
Authority: CN
Inventors: 福岛正纯
Original assignee: Murata Machinery Ltd
Current assignee: Murata Machinery Ltd
Priority date: 1993-12-16
Filing date: 1994-12-16
Publication date: 1995-09-13
Also published as: TW263475B; KR950017598A; JPH07165083A

Abstract

The invention relates to a hand truck with an article transferring device for moving an article in the horizontal direction and vertical direction. The device includes a hollow elevating stand and a slide fork which can be slid right and left by a sliding device, is provided in the elevating stand which can discharge article from the hand truck.

Description

Hand cart

The present invention relates to a kind of hand barrow.

In the past, hand barrow there was not only convenient, but also economic advantage as the device of carrying article, but at this moment must be put on the hand barrow, and must unload article from hand barrow with hand again, therefore the shortcoming that makes operating personal bothersome was just arranged with the handgrip article.

The objective of the invention is to overcome above-mentioned shortcoming and a kind of hand barrow is provided, the article carrying apparatus that can make the article level and move up and down is set on the body of car, so that article are loaded onto hand barrow or unload down from hand barrow.

The objective of the invention is to reach as follows:

A kind of hand barrow is characterized in that being provided with the article carrying apparatus that can make the article level and move up and down on the car body.

Purpose of the present invention can also following mode reach:

Described hand barrow is characterized in that above-mentioned article carrying apparatus be arranged on the shift fork on the bay-lift with having bay-lift and the free parallel motion of energy.

Described hand barrow is characterized in that it has towards the cleaning assemblies of placing article ejection cleaned air onboard.

Described hand barrow is characterized in that it has the registration device that combines with set align member on the article delivery position.

The present invention has following effect, and promptly operating personal need not take a lot of trouble more, and the used article carrying apparatus is put into article on the hand barrow, can unload article from hand barrow with it again.

Illustrate:

Fig. 1 is the simple planar view of expression the present invention the 1st embodiment,

Fig. 2 is the cross sectional drawing that II-the II line is obtained along Fig. 1,

Fig. 3 is the exploded perspective view of the jacking system of expression bay-lift,

Fig. 4 is the lateral plan of slip shift fork part, and wherein, Fig. 4 A represents that non-sliding mode, Fig. 4 B represent sliding mode.

Fig. 5 is the amplification profile diagram that V-the V line is obtained along Fig. 4 A,

Fig. 6 is the cross sectional drawing (dwindling a little) that VI-the VI line is obtained along Fig. 5,

Fig. 7 is the scheme drawing of the interlinked mechanism pattern of expression slip shift fork carriage, and wherein, Fig. 7 A is the scheme drawing of non-sliding mode, and Fig. 7 B is the scheme drawing of sliding mode,

Fig. 8 is the amplification profile diagram that VIII-the VIII line is obtained along Fig. 4 A,

Fig. 9 is the amplification profile diagram that IX-the IX line is obtained along Fig. 1,

Figure 10 is the amplification profile diagram that X-the X line is obtained along Fig. 1,

Figure 11 is the block diagram of expression the 2nd embodiment of the present invention,

Figure 12 is the block diagram of handle portion,

Figure 13 is the amplification profile diagram that the X III-X III line is obtained along Figure 11.

Below, two embodiment shown in illustrate the present invention with reference to the accompanying drawings.In these embodiments, identical member is with identical symbolic representation.

(the 1st embodiment) is (with reference to Fig. 1-Figure 10)

In this 1st embodiment, so-called front is meant the upside of Fig. 1, the downside that the back is meant Fig. 1; The so-called left side is meant the left side of Fig. 1, the right side that the right is meant Fig. 1.

As depicted in figs. 1 and 2,, be provided with and set about push handle 64 and operating case 65, switch that following manipulation electric appliance uses etc. is being set in operating case at the rear portion of the car body 63 of hand barrow 62.

The Caster 67 that circles round of required number is being set in the bottom of above-mentioned car body 63.

Be made into spline at the lifting bar 69 of the center upper portion of above-mentioned car body 63 and connect, to make it can not be with respect to the revolution of car body 63 on even keels and lifting freely.

As shown in Figure 3, above-mentioned lifting bar 69 is made and can be made its free lifting by jacking system 70.Jacking system 70 has and gear 72 gears in meshs 73, and gear 72 is to be inlaid on the horizontal rotating shaft of the rotating motor 71 of the positive and negative freedom of energy.On the other periphery of the side of gear 73 roller 74 can be set freely to rotate, this roller is embedded in 76 li of the horizontal channels of driven member 75 very close to each otherly about in the of 74, above-mentioned driven member 75 is installed on the lower end of lifting bar 69.

With such structure, just can make driven member 75(by the variation of turning round roller 74 height and positions that cause by gear 73 is lifting bar 69) lifting.

As Fig. 4-shown in Figure 8, make hollow form bay-lift 78 length direction along about with its outstanding upward top that is arranged on above-mentioned lifting bar 69 from car body 63 tops, the slip shift fork 3 that can be free to slide by following carriage 79 is being set on this bay-lift 78.

Carrier box 41 is being put under the state on the slip shift fork 3, in order to alleviate in that to make slip shift fork 3(be bay-lift 78) when rising, be added in the load on the motor 71, at ordinary times, driven member 75 by the effect that utilizes members such as hydraulic pressure, spring upwards near the device (not shown) upwards nestle up.

Above-mentioned carriage 79 has base 1 and the middle part 2 that is fixed on the bay-lift 78, and the motor 4 that makes middle part 2 slip usefulness is being set in the bottom of base 1.

Above-mentioned base 1 makes along the both sides, front and back that (being the left and right sides of Fig. 5) has upright wall portion 5, thereby section is " コ " word shape, on these

upstanding wall portion

5,5 aspectant positions, along left and right directions (promptly with the perpendicular direction of Fig. 5 paper), with the interval of regulation, can dispose a plurality of guide wheels 6 freely to rotate.With nut 7 these guide wheels are fixed.

Above-mentioned middle part 2 by connecting panel 9 two one

steel rails

8,8 with " worker " font section, the length direction that makes them along about be held in level.10,10 li setting-ins of formed groove each guide wheel 6 of base 1 on each face outwardly of this two one

steel rail

8,8.

Vertical

lower wall portion

12,12 is being set on above-mentioned slip shift fork 3, they are parallel with each inside face vis-a-vis of the

rail

8,8 at middle part 2, these two vertical

lower wall portions

12,12 opposite on external position, along left and right directions, separate certain intervals, can dispose a plurality of guide wheels 13 freely to rotate.These guide wheels 13 are inlaid on 2

rail

8,8 inside face vis-a-vis of middle part in the formed

groove

11,11.

Like this, just can make the middle part 2 and slip shift fork 3 respectively with respect to base 1, with respect to middle part 2 be subjected to the guiding horizontally slip.

By being slided to the right or left in middle part 2, slip shift fork 3 is slided in linkage in the same direction, this mechanism is as described below.

That is, as described in Fig. 7 A and Fig. 7 B, it is arranged on the free rotating

roller

54,55 of pair of right and left energy on the middle part 2; Advance the interlock chain 58 of usefulness with the right side on the left part fixed end 57 that is suspended on base 1 from the left part fixed end 56 of the slip shift fork 3 right part roller 54 by middle part 2 and be suspended on Zuo Jinyong interlock chain 61 on the right part fixed end 60 of base 1 from the right part fixed end 59 of slip shift fork 3, left part roller 55 by middle part 2.As described above the right side is advanced that to hang with interlock chain 58 and Zuo Jinyong interlock chain 61 be that slippage for the connection ratio of momentum middle part 2 that makes slip shift fork 3 increases exponentially.

As shown in Figure 6, on the base 1, about the free rotating sprocket wheel 20,21 of a pair of energy is being set.At this right part sprocket wheel 20 and left part sprocket wheel 21 and make by motor 4 on the sprocket wheel 23 of its forward or reverse and hanging endless belt 22.Sprocket wheel the 24, the 24th applies the free rotating sprocket wheel of energy of tension force to endless belt 22.The interference that causes when different for being offset up and down of the upper portion 22a that prevents endless belt 22 and lower portion 22b; In order to make upper portion 22a mention, be provided with friction plate 25 in the highland slightly than the outside pitch line length of left and right sprocket wheel 21,20.When endless belt 22 is chain period of the day from 11 p.m. to 1 a.m, will a plurality of pins that each chain link is coupled together each other be set along the carrying direction, and this pin has the following effect as the junction surface.When other member beyond the chain is used as endless belt 22, the junction surface that replaces this pin just must be set.

On the connecting panel 9 at above-mentioned middle part 2, from it face portion to following perforation ground, the joint fastener 28(of the spline-simulating that is short is being set with reference to Fig. 5).The central part of this joint fastener 28 left and right directions of 2 and about it, respectively dispose one (adding up to 3) every certain intervals at the middle part, and be the upper portion 22a place on the friction plate 25 of being on above-mentioned endless belt 22, engaging with the junction surface (under above-mentioned chain subcase, then being equivalent to pin) of this endless belt 22.Therefore, driving by means of endless belt 22 is advanced, just can make the i.e. middle part 2 of joint fastener 28() slide towards the direction identical with the direction of slip (for example getting right-hand) of the upper portion 22a of endless belt, and when joint fastener 28 is advanced to than the zone that is equivalent to friction plate 25 more on the right side, the joint fastener 28 that is configured in the left side has entered the zone that is equivalent to friction plate 25, and engage with endless belt 22, the result just often is maintained in from the endless belt 22 and gives the state at middle part 2 transmission of power.

In the above-described embodiments, joint fastener 28 is to make the short spline-simulating that has a plurality of soldered tooths, if a plurality of joint fasteners of middle part 2 configurations relatively, then joint fastener also can be made and have only a soldered tooth.In contrast, increase, also can make and the cooresponding long spline-simulating of the left and right sides length at middle part 2 by the number that makes soldered tooth.In addition, the drive transmitting of 4 pairs of endless belts 22 of motor also not necessarily will be used sprocket wheel 23, also available left and right sprocket wheel 21,20 or add sprocket wheel 24 that tension force uses etc. and directly carry out.In order to prevent to transship, motor 4, endless belt 22 and other each several part are damaged, and are preferably on the axis of revolution of motor 4 and torque limiting device 30(are installed with reference to Fig. 5).Chain when the endless belt 22, preferably use the roller chain that can engage sleekly and break away from joint fastener 28.

Hand barrow with said structure can move as described below.Owing to by motor 4 is driven, by sprocket wheel 23 endless belt 22 is driven and advance, thereby also just slide with the joint fastener 28 that the upper portion 22a on the friction plate 25 engages that is equivalent on this endless belt 22, thus, just slide with respect to base 1 in middle part 2.And slide along with middle part 2, slip shift fork 3 is just towards sliding with middle part 2 equidirectionals.

As shown in Figure 8, on above-mentioned slip shift fork 3, fixing the cargo storage platform 31 that forms cross positioning groove 32 on it.The open upward conical surface is made in the side of above-mentioned positioning groove 32, makes that formed cross locator protrusions 42 can successfully embed on carrier box 41 lower surfaces.

Above-mentioned goods platform 82 has the energy disperser 83 by air bellow etc., erectly is arranged on four pillars 84 on the car body 63, and these pillars 84 are being interconnected them by attaching parts 85.

In the upper end of above-mentioned pillar 84 anchor plate 87 is installed, anchor plate 87 has for the tight seam part 88 of bottom comer embedding of moving box 41.Can be loaded in carrier box 41 on this anchor plate 87, the unique lateral opening 43 that makes it unloads towards following goods and leaves office 93, and at such state, the lateral opening 43 that the height and position of seam part 88 is adjusted to it a little up.In order to be positioned at carrier box 41 on the anchor plate 87, the L-shaped sidewall of section around the seam part 88 made to extend out upward.And the position control of carrier box 41 become under the state that places it on the seam part 88 of anchor plate 87, can not move and form horizontal direction by anchor plate 87.

Carrier box is being deposited the member that requires certain cleanliness level for 41 li.

Above-mentioned anchor plate 87, pillar 84 etc. will be made into certainly not and can clash with slip shift fork 3 etc., and also can not clash with the carrier box 41 on the anchor plate 87 under the state that the cargo storage platform 31 of slip shift fork 3 descends.On the other hand, make under the state of depositing platform 31 risings, can rise to carrier box 41 more than the upper surface of anchor plate 87.

With above-mentioned structure, through slip shift fork 3 is stretched out to carrier box 41 belows, carrier box 41 is promoted by the rising of bay-lift 78, bay-lift 78 just can drop to carrier box 41 on the anchor plate 87 to the following degradation action that side withdraws from bay-lift 78; Just can unload carrier box 41 on the position of regulation with moving in contrast to this.

As Fig. 1 and shown in Figure 10, goods is set on the right side in hand barrow parking place 91 unloads and leave office 93, unload to leave office at this goods and form on 93 when carrier box 41 is lowered to the there, slip shift fork 3 drops on pit 94 wherein.The degree of depth of pit 94 is made into the upper surface of the cargo storage platform 31 of slip shift fork 3 can not allow the degree of depth that slip shift fork 3 falls with carrier box 41 lower surfaces with colliding.Being removed the article that this goods unloads in the carrier box 41 of leaving office on 93 is not then taken out of by (having expression among the figure) such as manipulators.

As depicted in figs. 1 and 2, hand barrow 62 has the cleaning assemblies 97 that the carrier box on the anchor plate 87 41 is kept clean.This cleaning assemblies 97 is provided with pipeline 98, air blower 101 and filter 102, above-mentioned pipeline 98 have the inlet 99, with anchor plate 87 on carrier box 41 aspectant outlets 100; The ejiction opening of above-mentioned air blower is connected on the inlet 99; Above-mentioned filter 102 is arranged in inlet 99 and the outlet 100.With such structure, use cleaned airs just can keep the cleanliness level of the carrier box 41 on the anchor plate 87 by outlet 100 ejections.

As depicted in figs. 1 and 2, hand barrow 62 is provided with registration device 106, and this registration device 106 has the 1st steady arm 107 and the 2nd steady arm 113.

The 1st above-mentioned steady arm 107 has the position in axle center can be along the vertical direction and horizontal direction (position all around) free adjustment, can be installed in the roller 108 on the anterior right side of hand barrow 62 freely to rotate, be arranged on the ground of hand barrow parking place 91 with energy free adjustment horizontal direction position, the section that has roller 108 to embed is the anchor plate 109 of " V " notched cut 110 (position all around).

The 2nd above-mentioned steady arm 113 have shaft core position can be along the vertical direction and horizontal direction (i.e. position all around) be installed in to free adjustment guiding tube 114 on the right side, rear portion of hand barrow 62; With bar 115 by this guiding tube 114 free liftings guiding; The position of horizontal direction (i.e. position all around) can free adjustment be arranged on the supporting slice 116 of ground, bar 115 can be embedded in wherein ordinatedly, upside has expansion the taper hole 117 in hand barrow parking place 91; Relevant with above-mentioned guiding tube 114 with bar 115, bar 115 is being depressed, be entrenched in the height and position of 117 li of taper holes and it is alternately moved the known position change device (not having expression the figure) that stops between 117 li height and positions of extracting fully of taper hole.

With above-mentioned structure, carry out the first above-mentioned steady arm 107 and the position adjustments of the 2nd steady arm 113, roller 108 is embedded in after 110 li at the otch of anchor plate 109, the bar 115 that has risen is embedded in 117 li of taper holes just can makes hand barrow 62 location.

Also can be installed in roller 108 on the ground in hand barrow parking place 91, anchor plate 109 is installed on the hand barrow 62, in addition, but also barre 115 is installed on the ground in hand barrow parking place 91, and supporting slice 116 is installed on the hand barrow 62.

Also can only do bearing to roller 108.

(the 2nd embodiment) is (with reference to Figure 11-Figure 13).

In this 2nd embodiment, so-called front is meant the right side of Figure 11, and so-called back is meant the left side of Figure 11, and the left side is meant a side opposite with the drawing of Figure 11, the right is meant drawing one side of Figure 11, mainly be the working direction of hand barrow 62 as benchmark, get into all around.

Bay-lift 78 makes its lifting by known jacking system 121.Above-mentioned jacking system 121 has known cross section can be supported to the pair of links mechanism of X shape rotationally by fulcrum the lifting mechanism 122 that is provided with; The hydraulic package 123 of the members such as oil cylinder that make lifting mechanism 122 actions is equipped with in the inside; The lifting bar 125 that makes the action pedal 124 of these hydraulic package 123 actions and this hydraulic package 123 is moved.

Above-mentioned action pedal 124 depressed bay-lift 78 is risen, lifting bar 125 is pulled on bay-lift 78 is descended lentamente.

Different with the 1st embodiment, make carriage 79 actions by manually operated rotary handle 128.That is,, the revolution of manually operated rotary handle 128 is delivered on the axle of sprocket wheel 23, makes 3 actions of slip shift fork thus by worm screw 129, worm gear 130 without the motor 4 of embodiment 1.This shows, the action of slip shift fork 3 can with manually, also can be with electronic.In this 2nd embodiment, slip shift fork 3 is that relative hand barrow 62 moves forward and backward.

As Figure 11 and shown in Figure 12, hand barrow 62 is being provided with registration device 106.Above-mentioned registration device 106 has the 1st steady arm 107 and the 2nd steady arm 113.

Above-mentioned the 1st steady arm 107 has the position in axle center can be along the vertical direction and horizontal direction (i.e. position all around) free adjustment, can be installed in the roller 108 on the anterior right side of hand barrow 62 freely to rotate; Horizontal direction position (i.e. position all around) can be arranged on the ground of hand barrow parking place 91 to free adjustment, has roller 108 embeddable sections to be the anchor plate 109 of " V " notched cut 110.

With reference to Figure 13, above-mentioned the 2nd steady arm 113 has the position in axle center can be along the vertical direction and horizontal direction (i.e. position all around) free adjustment, can be installed in the roller 108 on the anterior left side of hand barrow 62 freely to rotate; Horizontal direction position (i.e. position all around) can free adjustment be arranged on hand barrow parking place 91 ground, the supporting slice 132 with roller 108 contacted contact surfaces arranged.

With above-mentioned structure, carry out the position adjustments of the 1st steady arm 107 and the 2nd steady arm 113, the roller 108 on right side is embedded in after 110 li at the otch of anchor plate 109, the roller 108 in left side is crimped on just can makes hand barrow 62 location on the supporting slice 132.

Also can be installed in roller 108 on the ground in hand barrow parking place 91, anchor plate 109 and supporting slice 132 are installed on the hand barrow 62.

Figure 12 represents hand push handle 64 used among the 2nd embodiment.

Also can replace slip shift fork 3 with it the manipulator of carrying article as the device of moving article.

Because hand barrow of the present invention has above-mentioned structure, thereby following effect is arranged.That is, it can make operating personal need not take a lot of trouble more, with the device of moving article article are put on the hand barrow or from hand barrow and unload article.

In addition, being provided with on the hand barrow under the cleaning assemblies situation of placing article ejection cleaned air onboard, can also under the state that keeps the article cleanliness level, carry.

Under the situation that the registration device that combines with set align member on the article delivery position is being set on the hand barrow, can be positioned at hand barrow on the article delivery position easy, infalliblely, therefore just can carry high-precision article.

Claims

1, a kind of hand barrow is characterized in that being provided with the article carrying apparatus that can make the article level and move up and down on the car body.

2, hand barrow as claimed in claim 1 is characterized in that above-mentioned article carrying apparatus be arranged on the shift fork on the bay-lift with having bay-lift and the free parallel motion of energy.

3, hand barrow as claimed in claim 1 is characterized in that it has towards the cleaning assemblies of placing article ejection cleaned air onboard.

4, hand barrow as claimed in claim 1 is characterized in that it has the registration device that combines with set align member on the article delivery position.