CN1597409A

CN1597409A - Cart

Info

Publication number: CN1597409A
Application number: CN 200410078502
Authority: CN
Inventors: T·阿尔民
Original assignee: Wanzl Metallwarenfabrik GmbH
Current assignee: Wanzl GmbH and Co Holding KG
Priority date: 2003-09-13
Filing date: 2004-09-13
Publication date: 2005-03-23
Also published as: WO2005025964A1; TW200510205A; DE10342438A1; DE112004002223D2

Abstract

The invention relates to a cart (1) that can be moved by hand, particularly a shopping cart, comprising a pushing device (2), which has a horizontally disposed tubular handle (3). Each end (4) of the handle (3) is inserted into a respective handle retaining part (8), and each handle retaining part (8), which is supported by a handle support (6), has a peg-like projection (11) that outwardly projects into the handle (3), and into each handle part (8), a pin (14) is inserted, which can be inserted from the outside, is provided with a shank (16) and with a head (15), and which is placed along the longitudinal axis (5) of the handle (3). The head (15) of said pin forms a stop, and the shank (16) thereof is designed for widening the peg-like projection (11) and thus for tightening the handle (3) to a handle retaining part (8). The invention is characterized in that the shank (16) of the pin (14) is provided with a slip-on section (20) and with a section (19) for engaging behind the peg-like projection (11), and in that the head (15) has a recess (24), which can be accessed from the outside and which is situated along the longitudinal axis (5) of the handle, in order to form a reduction in the cross-section between the shank (16) and the head (15).

Description

Hand barrow

Technical field

The present invention relates to a kind of hand barrow, especially the dolly of doing shopping, it comprises that one has the pusher gear of the pipe handle of a horizontal arrangement, wherein, each end of handle is inserted in the one handle retaining part, the prodger that has a plug pattern by each handle retaining part of handle support carrying, it is projected in the handle from the outside, wherein, one introduces from the outside and comprises that the bolt of an axostylus axostyle and a head is inserted in each handle retaining part, and is positioned on the longitudinal axis of handle, and the head of bolt forms a backstop, and axostylus axostyle is used for extending the extension of plug pattern, thus handle is clamped in the handle retaining part.

Background technology

EP0 591 006 B1 have described the hand barrow of the type in Fig. 6 (a).Accompanying drawing illustrates two bolts that are used for fixing handle and are provided with and comprises an axostylus axostyle, a head and axostylus axostyle tip freely.This description stays still vague place, and whether a technological facilities of being convenient to installation process is provided in the time of in each bolt inserts handle retaining part.This embodiment lacks the device that is used for preventing the bolt longitudinal travel, how apace also not to show removal handle.

Summary of the invention

From the prior art, the objective of the invention is a kind of like this shopping dolly of development, require this dolly:

-hold-down bolt easily is so that fixed handle;

-not displacement vertically of bolt under mounted state; And

If-handle will be changed, then can dismantle at short notice, and the dismounting mode is simple.

The realization of this purpose is, the axostylus axostyle of each bolt is provided with the part that an insertion portion and is used for being bonded on the extension back of plug pattern; Head has one and is arranged in recess on the handle longitudinal axis line, that can enter from the outside, so that form a cross section that reduces on the bolt between axostylus axostyle and the head.

This insertion portion that is arranged on the bolt end will be bolted to an accurate position before can be in the extension that its is driven the plug pattern enter the one handle retaining part, and its result can be easily and be attached to handle simply.

Under installing condition, rely on the extra help of head to be fixed on accurate position by means of each bolt of part that is bonded on plug pattern extension back.Thus, can prevent the longitudinal travel of bolt reliably, like this, handle is remained on the handle retaining part safely.

If will remove handle in order to change the handle retaining part, then as long as in entering into recess in the bolt head along axial introducing one punching tool of handle, thereby by means of the hammering of this punching tool axostylus axostyle with bolt is separated from the head.This separation may be owing to being arranged on reducing of cross-sectional area between axostylus axostyle and the head.The axostylus axostyle that separates falls in the tubular handle, and this head can easily be pulled down from the handle retaining part.This dismounting also can make the handle retaining part pull down from handle support.

Description of drawings

The present invention is described with reference to all embodiment.

Fig. 1 illustrates a hand barrow; And

Fig. 2 and Fig. 3 respectively illustrate handle retaining part, one handle and a bolt that has an one handle supporting member.

The specific embodiment

Fig. 1 illustrates the hand barrow 1 of the preferred form of a known shopping dolly.According to its structure, the hand barrow 1 of this type is used for transporting little article, luggage and the article like that of acquisition.They form the parts of the general state of the sector.Therefore, detailed description is unnecessary.All these hand barrows 1 comprise that one has the pusher gear 2 of the handle 3 of a horizontal arrangement.Handle 3 respectively hold 4 to extend in the known handle retaining part 8, each handle retaining part is supported by handle support 6.One bolt is inserted in each handle retaining part 8 by opening, so that fixed handle 3, its result not only protects handle 3 to avoid deviating from from handle retaining part 8, and protects handle retaining part 8 to avoid deviating from from handle support 6 again.

Fig. 2 system is illustrated in the right-hand side of the handle 3 of the pusher gear 2 in the installing condition, together with the section drawing of handle retaining part 8, one handle supporting member 6 and a bolt 14.Accompanying drawing illustrates a traditional handle support 6, for example the handle support that can see in the both sides of goods basket of shopping dolly.Can see two cutting surfaces 7 of curved handle supporting member 6.Handle support 6 has been carried a known handle retaining part 8, and it is provided with a capsule box 9 that inserts and the opening 25 of a level.Handle retaining part 8 on the side is arranged to and as shown in the figure 8 one-tenth minute surface symmetries of handle retaining part leftward.Be installed in the outside 10 that the handle retaining part 8 on the handle support 6 has the right hand end of an encirclement pipe handle 3.In a known mode, each handle retaining part 8 is provided with plug-type extension 11, and it is projected into the inside of handle 3.The plug-type extension 11 that generally includes four arms 12 has a passage 13 that is positioned on the longitudinal axis 5 of handle 3, and wherein, bolt 14 is arranged in this passage 13.Preferable cylindrical bolt 14 has a head 15, towards the surface 17 of the head of the axostylus axostyle 16 of bolt 14 as a stop part to be resisted against on the plug-type extension 11.Head 15 also forms a lockout mechanism between handle retaining part 8 and handle support 6, especially when head 15 is maintained effectively by handle support 6 (with reference to Fig. 3).Handle retaining part 8 can not move apart handle support 6.The subsequent section of head 15 is axostylus axostyles 16, and it has a cylindrical midsection and divides 18, and this part is positioned at the extension 11 of plug-type, and realizes the latter's expansion, and like this, handle retaining part 8 is clamped in the handle 3.One part 19 that is used for being bonded on plug-type extension 11 back is adjacent to cylindrical midsection and divides 18, and can form parts or a plurality of parts.Therefore, the plug-type extension 11 of handle retaining part 8 is inserted on the exact location between part 19 and the head 15.At last, part 19 backs that are used for being bonded on plug-type extension 11 back are with a cylindrical insertion portion 20, and its external diameter is slightly less than the internal diameter of the passage 13 in the handle retaining part 8.Therefore, when handle 3 is installed, the insertion portion 20 of each bolt 14 can be from example right-hand side be inserted into exact location in the passage 13 by opening 25, like this, by means of thereafter to the admissible installation site shown in the accompanying drawings of the hammering latter of the head 15 of bolt 14.

The head 15 of bolt 14 has a recess 24 that is positioned on the longitudinal axis 5 of handle 3, and this recess 24 divides 18 to extend towards cylindrical midsection.The termination of recess 24 makes on the bolt 24 between axostylus axostyle 16 and the head 15 and to form the zone that a cross-sectional plane has been reduced, and forms a predetermined breaking-down point.This technical characterictic is vital for the dismounting of handle 3.After the punching tool that forms is introduced correspondingly, the hammering of perforating tool is enough to the axostylus axostyle 16 of bolt 14 is separated in 15 from the head.If the axostylus axostyle 16 of two bolts 14 separates on the two ends of handle 3, then two handle retaining parts 8 can be dismantled from handle support 6, and then, handle 3 also can move apart handle support 6.

As a kind of expansion of the present invention, Fig. 3 illustrates the handle 3 identical with the structure described in Fig. 2, handle retaining part 8, handle support 6 and bolt 14, but difference is: the cylindrical midsection of axostylus axostyle 16 divides 18 directions along bolt 14 heads 15 to have a step 21 that amplifies, like this, have the part of larger-diameter centre portion 18 and the remainder of centre portion 18 and be formed on (with reference to Fig. 2) on the right side.This part is inserted in the recess 22 of a complementation, and it forms the part of handle retaining part 8 and is positioned on the longitudinal axis 5 of handle 3.Also having different is to form the insertion portion 20 of fluting longitudinally.Although step 21 forms preferable mutual supporting between bolt 14 and handle retaining part 8, longitudinally Kai Cao insertion portion 20 makes the installations of bolt 14 in handle retaining part 8 in the passage 13 become to be more prone to.Longitudinal slot 23 in insertion portion 20 may extend in the part 19, so that the back of engagement plugs type extension 11, and be convenient to drive advancing of bolt 14 thus extraly.

Be pointed out that also the technical characterictic of describing according to Fig. 2 and 3 can exchange in example.All technical characterictic and hand barrows 1 of obtaining thus on the right-hand side of handle 3 can be applied to the left side according to the minute surface symmetrical manner.

Claims

1. a hand barrow (1), especially the dolly of doing shopping, it comprises that one has the pusher gear (2) of the pipe handle (3) of a horizontal arrangement, wherein, each end (4) of handle (3) inserts in the one handle retaining part (8), each handle retaining part (8) by handle support (6) carrying has a plug-type extension (11), it is projected in the handle (3) from the outside, wherein, one introduces and the bolt (14) that comprises an axostylus axostyle (16) and a head (15) inserts in each handle retaining part (8) and is positioned on the longitudinal axis (5) of handle (3) from the outside, the head (15) of bolt (14) forms a backstop, and axostylus axostyle (16) is used for extending plug-type extension (11), thus handle (3) is clamped in the handle retaining part (8), it is characterized in that the axostylus axostyle (16) of each bolt (14) is provided with the part (19) that an insertion portion (20) and is used for being bonded on plug-type extension (11) back; Head (15) has a recess (24) that can enter from the outside that is arranged on the handle longitudinal axis line (5), so that the bolt (14) between axostylus axostyle (16) and head (15) go up to form the zone that a cross section has been reduced.

2. hand barrow as claimed in claim 1 is characterized in that, the zone that cross-sectional plane has been reduced forms a breaking-down point of being scheduled to that influence bolt (14) head (15) and axostylus axostyle (16).

3. hand barrow as claimed in claim 1 or 2 is characterized in that, the plug-type extension (11) of each handle retaining part (8) is inserted in and is used between the head (15) of the part (19) of extension (11) back of engagement plugs type and bolt (14).

4. as any one described hand barrow in the claim 1 to 3, it is characterized in that the external diameter of insertion portion (20) is slightly less than the internal diameter of the passage (13) that is used for admitting bolt (14).

5. as any one described hand barrow in the claim 1 to 4, it is characterized in that a step (21) is arranged on the axostylus axostyle (16) of each bolt (14), and be positioned between the head (15) and centre portion (18) of each bolt (14).

6. hand barrow as claimed in claim 5 is characterized in that, a step (21) is set, and is used for bolt (14) on the carrying-handle retaining part (8) extraly.

7. as any one described hand barrow in the claim 1 to 6, it is characterized in that, the insertion portion (20) of each bolt (14) has a longitudinal slot (23), and this longitudinal slot (23) selectively extends in the part (19), so that the back of engagement plugs type extension (11).