CN101045460A

CN101045460A - Trolley

Info

Publication number: CN101045460A
Application number: CNA2006100847776A
Authority: CN
Inventors: 金谷贤一
Original assignee: SANEI KAYAKU MECHANISM CORP
Current assignee: SANEI KAYAKU MECHANISM CORP
Priority date: 2006-03-31
Filing date: 2006-05-17
Publication date: 2007-10-03
Anticipated expiration: 2026-05-17
Also published as: JP3927220B1; CN101045460B; JP2007269188A; KR20070098387A; TW200736145A

Abstract

The present invention provides a trolley which can be overlap-disposed orderly when it is preserved at a folding state, without useless space and can be preserved safely with a stable standing state. The structure of this trolley is: an objective table which is used to deposit the merchandise, the caster wheels (8) which are arranged before and after the trolley to move the trolley, and the auxiliary caster wheels which are used for the preservation of the trolley, the main caster wheels at the front side can move to the ones at the back side, furthermore, the objective table of the trolley can overlap to the direction of the caster wheels at the back side, with the moving of the caster wheels of front side to the ones at the back side, the objective table overlaps to the direction of caster wheels at the back side, thereby to help the caster wheels extending to the front side of the main caster wheels at the front side.

Description

Chassis

Technical field

The present invention relates to be used to carry the chassis of article.

Background technology

The chassis that is used to carry article has following structure: even can be when preserving or do not take up space as much as possible during at vehicle conveying and also can fold (for example, referring to patent documentation 1 and patent documentation 2) under the state of supporting that keeps supporting oneself.

Patent documentation 1: the spy open the 2003-2326 communique (the 1st～6 page, Fig. 3)

Patent documentation 2: the spy opens 2004-123028 communique (the 1st～7 page, the 9th～10 page, Fig. 1～2, Figure 10～11)

Has the chassis (referring to patent documentation 1) of this collapsed shape owing in birds-eye view, be L word shape, therefore, in the time will being in, Yi Bian its overlap mode becomes skew along inclined direction, Yi Bian overlapping with the overlapping front of arranging to chassis of the chassis of this L word shape folded state.That is, the form of this overlapping arrangement forms parallelogram in birds-eye view.Therefore, under situation about chassis (container) being kept in the room or under the situation of carrying by vehicle, because usually 4 angles of 4 angles in this room or vehicle form with the right angle, therefore, receive and keep behind the wall in 1 initial chassis contact bight, and the 2nd later chassis be along the room or the wall of vehicle loading platform, if overlapping quantity increases more, the wasted space of leaving wall just can increase more.

In addition, the mode that this (referring to patent documentation 2) collapsed shape forms is: in birds-eye view, only objective table (being used to hold the main body of object) is folding with I word shape, and it is folding and keep that the ladder-shaped frame body (under(-)chassis main body) of front and back wheel is installed.When overlapping arrangement is a plurality of under this folded state, its overlap mode is not for overlapping slidably along oblique skew, the ladder-shaped frame body (under(-)chassis main body) that front and back wheel only is housed in subaerial position still to stretch out largely, therefore, with chassis (article carrying instrument) during when being kept in the room or by vehicle conveying, the space that this frame body (under(-)chassis main body) is occupied is useless, in addition, leave chassis (article carrying instrument) when current, also existing pin can be hooked to frame body (under(-)chassis main body) and the danger of falling.

Summary of the invention

The invention provides do not have wasted space and can be safely, the chassis of supporting oneself.

The structure of chassis of the present invention is: chassis is provided with the objective table that is used for arrangement of goods, be configured in the auxiliary castor that being used for before and after the chassis use when main castor that chassis moves and chassis are preserved, the main castor of front side can move to the main castor direction of rear side, and, the objective table of chassis also can be folding to the main castor direction of rear side, main castor by the front side moves to the main castor direction of rear side, objective table is folding to the main castor direction of rear side, thereby auxiliary castor stretches out to the place ahead of front side master's castor.

In addition, above-mentioned auxiliary castor constitutes, and under main castor in front and back and ground state of contact, and forms certain interval between the ground.

In addition, the mobile jackknife action with objective table of the main castor of above-mentioned front side carries out synchronously.

Above-mentioned auxiliary castor is arranged at the front end below of the cross section word of the falling U shape parts or the cross section word of the falling L shape parts of the convergent that stretches out to chassis the place ahead.

More than the depth length of above-mentioned auxiliary castor extension elongation forwards for folding objective table.

Above-mentioned objective table is by base plate part, left and right sides frame parts and back frame (back of the body frame) component set-up, base plate part is the lateral frame piece folded inside of the side in the frame parts to the left and right, in addition, the left and right sides frame parts also can be respectively to the back frame member folded inside.

The main castor of front side can with the same moved further of above-mentioned left and right sides frame parts jackknife action separately.

When above-mentioned left and right sides frame parts was folded to the back frame member inboard, folding had a side's of base plate part lateral frame piece to fold in the mode that is positioned at folding before lateral frame piece the place ahead.

According to chassis of the present invention, because this chassis moves near the main castor of rear side by making the main castor that is arranged on the chassis front side, and make objective table (He Tai) also folding to the main castor direction of rear side, thereby auxiliary castor is stretched out to master's castor the place ahead, front side of being moved, therefore, by folding of chassis, the main castor in front and back is approaching, and its auxiliary castor can be partial to the chassis of supporting oneself in the place ahead because of the folding center of gravity of objective table from the preceding side bearing of chassis, thereby prevents tumbling of chassis.

Therefore, even not as in the past, support oneself in order to make folding chassis safely, or with the folding chassis (container) of L word shape, or it is folding and keep the frame body (under(-)chassis main body) that castor (wheel) is housed, by the present invention, still can safety and folding chassis is supported oneself.

And, because the overhang of auxiliary castor is also roughly the same with the fold thicknesses of chassis, therefore, can be not as in the past, the frame body (under(-)chassis main body) that castor (wheel) is housed is whole with overhanging largely, so, when current, hook pin and the danger of falling is very little.

In addition, under the state of the main castor kiss the earth in front and back, the chassis that leaves certain interval on auxiliary castor and ground is that fulcrum turns forward until auxiliary castor kiss the earth chassis with the main castor of chassis front side, thereby makes the chassis self-support when folding.

Because by this self-support state, the main castor of chassis rear side can float from ground, float from ground by the main castor that makes rear side by force, the center of gravity of folding chassis can further forwards move, in this way, the weight of auxiliary castor supporting increases, thereby has improved auxiliary castor and ground-surface contact stabilization, therefore, the main castor by this auxiliary castor and front side can make chassis support oneself highly stablely.In addition, because chassis forms the attitude that leans forward, therefore, can prevent chassis tumbling backward greatly.

In addition, because when many chassis of overlapping arrangement, these chassis can seamlessly overlapping arrangement, simultaneously, even when overlapping, its overlap mode still can be overlapping as the crow flies arrangement forwards, therefore, when the preservation of chassis or carrying, can not form useless space.

Description of drawings

Fig. 1 is the transparent view of the embodiment of demonstration chassis of the present invention.

Fig. 2 is the transparent view of the embodiment of demonstration chassis.

Fig. 3 is the action diagram of the jackknife action of demonstration chassis.

Fig. 4 is the action diagram of the jackknife action of display backpanel.

Fig. 5 is the lateral plan of folding chassis.

Fig. 6 is the cutaway view of the supporting arm of the embodiment of the auxiliary castor of demonstration.

Fig. 7 is for showing the auxiliary castor lateral plan partly of the embodiment that assists castor.

Fig. 8 is the transparent view of the embodiment of demonstration chassis.

Fig. 9 is the lateral plan of folding chassis.

The lateral plan of the chassis of state when Figure 10 takes care of for showing.

Figure 11 is the lateral plan of the chassis of the overlapping arrangement of demonstration.

Figure 12 is the birds-eye view of the chassis of the overlapping arrangement of demonstration.

The specific embodiment

Below, chassis of the present invention is described with reference to the accompanying drawings.

Fig. 1 is the embodiment of chassis of the present invention, and it is the transparent view of the folded state of the described chassis of demonstration.

Chassis 1 moves with the main castor 8 of wheel by base plate 2 parts, left and right sides framework (body side frame 3, body side frame 4), back frame 5 parts, formation and is used for making safely the auxiliary castor 10 of folding chassis 1 self-support supporting to constitute.

As shown in Figure 1, under the folded state of chassis 1, the base plate that constitutes objective table is towards positive and folding with the state that is erected in body side frame 3 inboards, left side, the body side frame 4 on right side is towards positive and be folded to the front side of back frame 5, in addition, fold the front side that the body side frame 3 that above-mentioned base plate 2 is arranged is folded to body side frame 4.

By forming this state, auxiliary castor 10 occurs with the state that forwards stretches out.

Being used for above the base plate 2 that is arranged on chassis 1 prevents each frame parts (body side frame 3, body side frame 4, back frame 5) that load collapses diffusing, by attaching parts 6, makes body side frame 3 and body side frame 4 can free be connected to the both sides of back frame 5 bendingly respectively.Because back frame 5 sides and this back frame 5 of this attaching parts 6 are fixed together, and its body side frame 3 sides and body side frame 4 sides are owing to pass this body side frame 3 and body side frame 4 in attaching parts 6, and therefore, body side frame 3 and body side frame 4 can freely rotate.

Main castor 8 is separately positioned on chassis 1 all around, and rear side master castor 8 is fixed on the left and right sides of back frame 5, and a front end that is fixed on body side frame 3 parts with in the main castor 8 of front side is fixed on the front end of body side frame 4 parts with another.

Above-mentioned main castor 8 can adopt towards the installation of each parts and make main castor 8 be directly installed on direct mount on each parts, also can between folder establish the indirect installation that certain parts is installed, it fixes connecting elements such as can adopting screw, also can adopt the form of fixing by welding.

In addition, main castor 8 adopts the form that has drg on a part (being generally the main castor in the place ahead), in addition, all wheel can be the free car castor that free direct of travel can change, also can make hope position all around is free car castor, and makes other position be fixing car castor.

The state that auxiliary castor 10 stretches out to the place ahead of back frame 3 parts towards the place ahead and the formation of back frame 5.Its overhang is by the length decision of the left and right directions of the height of framework (body side frame 3, body side frame 4, back frame 5), base plate 2.

Promptly, as shown in Figure 5, if the chassis 1 that side-looking is folding, be that auxiliary castor 10 inclinations in axial the place ahead are oblique then with the rear side castor 8 of chassis 1, thereby loading is in auxiliary castor 10, the stabilized conditions that formation is difficult to fall down backward, above-mentioned bevelled angle is by the extension elongation of auxiliary castor 10 and should auxiliary castor decide being arranged on the height of main castor above slightly under the running condition of chassis.

And, under the state that chassis folds, though auxiliary castor 10 forwards stretches out, but as shown in Figure 6, the shape of the supporting arm 9 by making auxiliary castor 10 forms the cross section word of the falling L shape parts of the such convergent of the cross section word of the falling U shape parts of the such convergent of Fig. 6 (a) or Fig. 6 (b), thereby the time as Figure 11 and 12 overlapping arrangement chassis 1, as shown in Figure 7, before being contained in nested form, the supporting arm 9 of the chassis after the overlapping arrangement in the supporting arm 9 of the chassis of overlapping arrangement, can not overlap the obstacle when arranging.

In addition, above-mentioned arm 9 is integrally formed with pillar 11.

Fig. 8 has shown the chassis 1 of the supporting arm 9 of auxiliary castor 10 by the cross section word of the falling U shape component set-up of convergent.

The part of supporting arm 9 sides of the rear side master castor 8 of this chassis 1 is installed in the position that is in supporting arm 9 inboards, the rear side master castor 8 of its opposition side be installed in this position about roughly the symmetry the position.

In addition, other embodiment that in Fig. 2, has shown the chassis 1 of Fig. 1, in the chassis 1 of this embodiment, constitute left and right sides framework (body side frame 3, the body side frame 4) parts and back frame 5 parts of chassis 1 shown in Figure 1 by plate member (side plate 3a, side plate 4a, side plate 5a).

As shown in Figure 2, the jackknife action of chassis 1 is identical with chassis shown in Figure 11, and towards the front, the side plate 4a on right side is folded to the front side of side plate 5a, state with the side plate 3a inboard on the left of being erected in folds the base plate 2 of formation objective table towards the front, and side plate 3a is folded to the front side of side plate 4a.If form this state, then auxiliary castor 10 occurs with the state that stretches out forward.

Preventing in each plate member (side plate 3a, side plate 4a, side plate 5a) that load collapses diffusing above the base plate 2 that is arranged at chassis 1, by attaching parts 6a, make side plate 3a and side plate 4a can free be connected to the both sides of backboard 5a bendingly respectively, and backboard 5a side and this backboard 5a of this attaching parts 6a be fixed together, because side plate 3a is connected with the hinge 6b of side plate 4a side by attaching parts 6a, therefore, by this hinge 6b, side plate 3a and side plate 4a side can freely be rotated.

Main castor 8 is separately positioned on chassis 1 all around, and the main castor 8 of rear side is fixed on the left and right sides of side plate 5a parts, and a front end that is fixed on side plate 3a with in the main castor 8 of front side is fixed on the front end of side plate 4a parts with another.

Fig. 3 is the action diagram of jackknife action of the chassis of displayed map 2, and this jackknife action is identical with the chassis of Fig. 1.Fig. 3 (a) has shown the chassis 1 that is in running condition, from this state, at first as shown in Figure 4, make the base plate 2 that forms objective table to edge-on of side plate 3a, thereby shown in Fig. 3 (b), fix this base plate 2 by the fixed arm 7a that is arranged on the base plate anchor fitting 7 on the side plate 3a.

Then, shown in Fig. 3 (c), the front side with side plate 4a is folded to backboard 5a at last, shown in Fig. 3 (d), is folded to side plate 3a the front side of side plate 4a.By forming this folded state, auxiliary castor 10 occurs with the state that forwards stretches out.

Fig. 9 is the lateral plan of folding chassis, it has shown the state that makes back frame 5 vertical stand-ups such as frame parts such as grade, under this erectility, as in Fig. 9 (b), amplify shown shown in the main portion like that, make the lower end of auxiliary castor be positioned at the top of main castor lower end, so that between the lower end of assisting castor 10 and ground 12, form certain interval.

And, when preserving chassis 1 (in practice) and since the center of gravity of back frame 5 frame partss such as grade with respect to main castor 8 to front face side (that is, auxiliary castor side) displacement, therefore, shown in Figure 10 (a), form the state that chassis 1 leans forward to auxiliary castor 10 sides.

Particularly, because base plate 2 is folded to the body side frame 3 as the forefront side under folding state, therefore, the frame parts single-piece center of gravity that is in folded state is to more the place ahead displacement, thus can stablize the suitably folding chassis of supporting by auxiliary castor, thus needn't worry that it translates into backward.In addition, self-evident, if not auxiliary castor 10, the chassis that then is in folded state is easy to fall down forward, in addition, can infer easily: plough under the upright as shown in Figure 9 situation can not leaning forward, not only be easy to forwards but also be easy to rearward topple over, if be prerequisite with this situation, easy to understand then: as the present invention, if under the state that leans forward, support by auxiliary castor, then stable higher.

Figure 11 is the lateral plan of the chassis of the overlapping arrangement of demonstration, and Figure 12 is the birds-eye view of the chassis of the overlapping arrangement of demonstration.

As Figure 11 and shown in Figure 12, the chassis of overlapping arrangement can seamlessly overlapping arrangement, and when overlapping arrangement, its overlap mode can be overlapping as the crow flies arrangement forward.

Specifically, compare with situation about folding with L word shape in the birds-eye view that illustrates in the prior art, the quantity that can allow to the chassis that holds in identical shelf space increases about 50%, and, for for the coffin the objective table of lorry, can stack with no gap stable status, and its amount of stacking can increase as described above greatly.

Claims

1. chassis, be provided with the objective table that is used for arrangement of goods, be configured in the auxiliary castor that being used for before and after the chassis use when main castor that chassis moves and chassis are preserved, the main castor of front side can move to the main castor direction of rear side, and, the objective table of chassis also can be folding to the main castor direction of rear side, main castor by the front side moves to the main castor direction of rear side, and objective table is folding to the main castor direction of rear side, thereby auxiliary castor stretches out to the place ahead of front side master's castor.

2. chassis according to claim 1, wherein, described auxiliary castor and forms certain interval between the ground under main castor in front and back and ground state of contact.

3. chassis according to claim 1, wherein, the mobile jackknife action with objective table of the main castor of described front side carries out synchronously.

4. chassis according to claim 1, wherein, described auxiliary castor is arranged at the front end below of the cross section word of the falling U shape parts or the cross section word of the falling L shape parts of the convergent that stretches out to chassis the place ahead.

5. chassis according to claim 1, wherein, more than the depth length of described auxiliary castor extension elongation forwards for folding objective table.

6. chassis according to claim 1, wherein, described objective table is made of base plate part, left and right sides frame parts and back frame member, base plate part is the lateral frame piece folded inside of the side in the frame parts to the left and right, in addition, the left and right sides frame parts also can be respectively to the back frame member folded inside.

7. chassis according to claim 6, wherein, the main castor of front side can with the same moved further of described left and right sides frame parts jackknife action separately.

8. chassis according to claim 6, wherein, when described left and right sides frame parts was folded to the back frame member inboard, folding had a side's of base plate part lateral frame piece to fold in the mode that is positioned at folding before lateral frame piece the place ahead.