CN2550995Y

CN2550995Y - Foldable castor type hand trolley

Info

Publication number: CN2550995Y
Application number: CN99900005U
Authority: CN
Inventors: 洛温斯坦·弗兰克
Original assignee: NIPPON NANEI CO Ltd
Current assignee: NIPPON NANEI CO Ltd
Priority date: 1998-10-13
Filing date: 1999-10-12
Publication date: 2003-05-14
Anticipated expiration: 2009-10-12
Also published as: GB9822192D0; GB2342623A; GB2342623B; AU6219399A; AR020805A1; WO2000021818A1

Abstract

The utility model relates to a foldable caster wheel type wheelbarrow, which comprises a supporting body (7), rotating caster wheels (3) and a pair of arms (4), wherein the wheelbarrow is provided with a handle (1) at one end and a pair of articulated type support legs (2) on the side edge, and each support leg is articulated at the upper end, so as to spread the support legs fanwise from the collection position where the support legs are mutually close to the opened unfolded position; the rotating caster wheels (3) are arranged at the free end of each support leg; each arm is articulated at one end to the free end of the corresponding support leg, each arm can support the goods to be carried, for example, luggage, and the other end of each arm is articulated together (8, 9), so as to provide a basically triangular supporting platform to be propped against the goods to be carried.

Description

Folding castor formula hand barrow

The utility model relates to a kind of castor formula hand barrow, relates in particular to a kind of can opening for the carrying article, as luggage, and the folding castor formula hand barrow of the sort of type of use.

Hand barrow formerly has unsettled drawback when loaded with articles.

The folding castor formula hand barrow that provides a kind of loaded with articles reliable and stable is provided the purpose of this utility model.

A kind of folding castor formula hand barrow that the utility model provides, comprise: supporting mass, has handle apparatus at hand barrow one end place and side has a pair of hinged leg, each leg is hinged at their upper end, keeps the stowed position fan of mutually close state to open position from them; The rotation castor is installed it and is used for free end at each leg; With a pair of arm spare, each arm spare all is hinged on the free end of respective leg at one end, and from one near the stowed position activity to of leg basically with the rectangular open position of each leg plane of movement, at this open position, each arm spare can support article to be carried, and as luggage, is characterized in: wherein the other end of each arm spare is all hinged, provide one to be leg-of-mutton support platform basically, against the carrying article.

Usually, each arm spare all comprises a collapsible supporting member, and this supporting member folds out to an open position from a stowed position near arm spare, constitutes another supporting member of article to be carried.

Preferably, it is hinged that each supporting member all is that triangle passes through basically, folded-out when using, they integrally limit a substantially parallel structure, this substantially parallel extensibility of structure is to the outside of triangle support platform, when each arm spare was in their open position, above-mentioned triangle supporting plane was limited by arm spare.

According to second kind of situation of the present utility model, hand barrow is included in a plurality of telescopic sections between supporting mass and the handle, each telescopic section is operated with respect to adjacent scalable part from stowed position, and a catch gear is housed between them, be used for when the stowed position from them stretches, the telescopic section that each is adjacent is locked at the appropriate location, the catch gear of the scalable part of close handle comprises a plunger rod, and this plunger rod is used to make last scalable part to unclamp from the scalable part of fwd.

Construct whereby, folding castor formula hand barrow loaded with articles is reliable and stable.

Now with reference to description of drawings the utility model, wherein:

Fig. 1 folds caster wheel formula hand barrow front elevation;

Fig. 2 is the lateral plan of castor formula hand barrow among Fig. 1;

Fig. 3 is the back view of hand barrow among Fig. 1,

Fig. 4 is that hand barrow illustrates the front elevation that partially opens among Fig. 1,

Fig. 5 is the planar view of the arm spare of hand barrow when being in its fully open position,

Fig. 6 is that hand barrow illustrates the front elevation of all opening among Fig. 1,

Fig. 7 is the front of the hand barrow opened fully from Fig. 6 and the transparent view that a side is seen,

Fig. 8 be illustrate the locking that is used for Fig. 1 hand barrow handle and tripping-gear cross sectional detail and

Fig. 9 is the cross sectional side view that catch gear among Fig. 8 is shown.

At first referring to Fig. 1 to Fig. 3, illustrate one and be in its folding fully or folding castor formula hand barrow of closure state fully, hand barrow comprises: handle 1; A pair of leg 2, each leg 2 all has castor 3 at its lower end, and they are biasing in the axial direction relatively each other; With a pair of arm spare 4, this is fastened on the leg 2 by articulation piece 5 (shown in Figure 3) arm spare 4, so that they can outwards be opened on the direction shown in the arrow in Fig. 2.The rear portion of each leg 2 is the hook-types 6 that separate in pairs accordingly therein, and elastic rope or similar attachment arrangement can be used for harvesting on this hook-type constitutes.

Below referring to Fig. 4, Fig. 4 illustrates hand barrow and is in the state that it partially opens, at this state, because it generally is result on the flat bearing body 7 that leg 2 locates in the top that radial type is installed to, they outwards open on the direction of arrow indication, each leg when the stowed position that is in shown in Fig. 1 to 3 around above-mentioned supporting mass 7.The stop mechanism (not shown) guarantees the scope of each leg 2 shown in can only outwards opening up into, so that the S. A. unanimity of each castor 3.In addition, utilized articulation piece 5 that arm spare 4 is hinged together, this arm spare 4 generally is hinged with the plane of movement down at right angles of leg 2, so that take a triangular construction, this triangular construction clearly show that referring to Fig. 5.

In Fig. 5, the free end of each arm spare 4 connects by a plate 8, and this plate 8 comprises hinge pin 9, and this hinge pin 9 extends in the free end of arm spare 4, thereby arm spare is linked together, and supplies their pin jointed end to open usefulness with the mode shown in the figure simultaneously.Obviously, may become unstable by arm spare 4 loading such as the such article of luggage, and in order to overcome this problem, be leg-of-mutton hard steel wire supporting arm 10 as being provided with one to one, to supporting arm 10 of each arm spare 4 usefulness, wherein two of each supporting arm 10 free ends are placed in articulation piece 11 respectively, in 12, therefore each supporting arm 10 can both from shown in the position folding through 180 degree substantially so that occupy a harvesting raceway groove 13, this raceway groove 13 crosses the inside of each arm spare 4 sideling.Therefore, when not needing supporting arm 10, such as when hand barrow is to be received and kept after with mistake, they can be folded in their harvesting raceway grooves 13 separately.

Referring to Fig. 6 and 7, the hand barrow of opening fully is shown, handle shown in it 1 all extends on handle apparatus, and handle apparatus comprises scalable component 14a, 14b, and 14c, the telescoping of the latter own is placed in the inside of supporting mass 7.

As in Fig. 7 as can be seen, this illustrates with its outside articulated construction one of them of supporting arm 10, therefore when the two stretched out for use, they collectively constituted a substantially parallel platform, be used to lay article to be carried, as luggage.

Because the free end of each arm spare 4 is connected with hinge pin 9 (shown in Figure 5) by dull and stereotyped 8, obviously, heavier load can be with the carrying of arm spare, because they have prevented to open outwardly effectively.This structure is very favourable, because the Collapsible cart of comparatively robust can be used lightweight material such as rigid plastic manufacturing.Shortcoming with triangle platform mainly is by utilizing supporting arm 10 to eliminate when it folds state when being in, and this state that folds is as at Fig. 5, and part is shown in Fig. 7.

Referring to Fig. 8 and 9, this mechanism is shown, utilize this mechanism can be with scalable component 14a, the adjacent part of 14b and 14c is locked at extended position shown in Fig. 6 and 7 for using and unclamping so that take stowed position shown in Figure 4.Scalable component 14a comprises a pipe fitting that flattens, and this pipe fitting is used lid 15 closures near handle 1 (not shown) at the top, and passes this pipe fitting and stretch out a flanged type start button 16 from central authorities.From button 16 suspended be a plunger rod 17, the lower end of this plunger rod 17 rests on the spring-loaded spool 18, this spool 18 comprises a pair of brake component 19, each brake component 19 all is used to hold steel ball 20.As shown in Figure 9, spool 18 has a camming surface 21, and by 22 biasings of a pair of spring, so that force spool 18 upwards pasting plunger rod 17, and allows the biasing of downward axial motion antagonistic spring 22 on the direction shown in the arrow simultaneously.Each all is installed in each spring 22 on the inside face of flanged type closing lid 23, and this closing lid 23 is closed the lower end of scalable component 14a.

The upper end of the lower end of scalable component 14a and scalable component 14b respectively is provided with pair of holes 42,25, and the every pair of hole all partly holds steel ball 20 separately, and by shown in Figure 9, obviously, scalable component 14a and 14b are locked together effectively.They can lead to the pressure down on the button 16, and subsequently plunger rod 17 and spool 18 move downward and unclamp, and just in time in the back of steel ball 20 separately, thereby can make scalable component flexible in collapsible 14b until each brake component 19.Equally, but contract kind of the closing lid of 14a lower end 23 when leaning against on another spool 18 (not shown) up at scalable component 14b lower end in gentry, then replace plunger rod 17 effectively, thereby can be for whole handle apparatus by using on the button 16 towards downforce is inwardly flexible, so that originally lock scalable component 14a and 14b, and then by leaving scalable component 14a towards downforce is folding fully on the handle 1,14b and 14c, enter supporting mass 7 in.

Claims

1. folding castor formula hand barrow, comprise: supporting mass, have handle apparatus at hand barrow one end place and side has a pair of radial type leg, each leg is located hinged in the top, from the stowed position fan of their placements close to each other, to open position; Rotate castor, be installed in the free end of each leg; With a pair of arm spare, each arm spare is hinged on the free end of respective leg at one end, and from one near the stowed position activity to of leg basically with the rectangular open position of each leg plane of movement, in this position, each arm spare supporting article to be carried, the other end of each arm spare is hinged, provides one to be leg-of-mutton support platform basically, against the carrying article; Each arm spare all comprises a folding supporting member, and this supporting member folds out to an open position from a stowed position near arm spare, constitutes another supporting member of article to be carried; It is characterized in that: each supporting member is by the pivotally attached triangle basically, folded-out qualification one is parallel structure basically, this parallel construction extends to the outside of triangle support platform, and each arm spare is shown in an open position, and arm spare limits above-mentioned triangle support platform.