DE102007009511A1 - Screw bolt and spacer sleeve, to hold a suspended drum in a washing machine during transport, has a mating part around the bolt thread in a positive fit at the housing wall opening - Google Patents

Abstract

The domestic appliance (1) with a suspended section (4), e.g. a washing machine with a rotating drum, has a screw bolt (7) and spacer sleeve through openings (12,13) in the appliance wall (3) to hold the drum against the housing (2) during transport. The bolt has a cylindrical mating part around it, between the bolts head (8) and the thread (9), in a positive fit at the first wall opening (12). The two wall openings are formed by a slit to allow the bolt thread to be pushed through but not the mating part.

Description

The The invention relates to a kit comprising a domestic appliance with a housing having a wall and an in the housing suspended oscillating system, and at least one transport security comprising one between the Wall and the oscillating system placeable spacer sleeve and a bolt with a head and a cylindrical, an external thread bearing Screw, which screw through a first recess in the wall and a first hole in the spacer sleeve in an internal thread of a second bore in the oscillating system screwed is, wherein the spacer sleeve through a second recess insertable into the housing and between the wall and the oscillating system is displaceable, so that the first Recess and the first hole are aligned.

Such a sentence emerges from the WO 2006/117253 A1 ,

The prior art is further referred to the EP 0 829 567 B1 , the EP 1 498 537 A1 and the EP 1 491 675 A2 , From each of these further documents, one set comprising a household appliance and at least one transport safety device emerge.

It are home appliances, in which during the intended Operation each moved a larger mass, in particular has to be rotated. In a device for the care of laundry, especially in a washing machine, this is one to be cared for and usually with wash or water wetted laundry filled drum, which is usually in a liquid-tight tub for picking up the wash liquor or water installed and with a to the tub attached motor is connected. Other components, in particular a pump and / or a sensor arrangement are usually also connected to the tub. The tub with all the components mentioned is with springs and dampers suspended in a housing of the household appliance and thus forms a "vibrating system", ie a system which to a certain extent on forces and moments, which emanating from the rotating drum, with movements, namely vibrations, can react. The mechanical energy of these vibrations is dissipated in the dampers and turned into heat, so that only small forces and moments of the swinging System act on the housing. That's why the case stays at each within its intended Operation conceivable load due to vibrations stable the place where it was set up.

If such a household appliance should be transported, for example from a manufacturing facility to a warehouse, from a warehouse to a dealer or from a dealer to one User, the home appliance must be secured against vibrations, which can affect it during transportation. For this purpose it is common and is quoted in the Documents of the prior art are also described in detail, the housing and the oscillating system of such a domestic appliance by means of a special transport lock (or a plurality such transport locks) largely immovable against each other to fix. In this regard, the disclosure of the cited Prior art documents of the present disclosure in their entirety Attributable to the extent.

at the design of a transport lock for a household appliance There are many aspects to consider. It's not just one reliable fixation between housing and oscillating Achieve system; In addition, the transport security easy and without excessive effort as part of a routine manufacturing process be installable. This may possibly only after complete assembly of the household appliance, so before fixation between the housing and the oscillating system possibly one more routine functional test possible is. Finally, the transport security must be by a possibly not expert person without solve more difficulties can, as a user is not trained in any case Consult a specialist for commissioning the household appliance would like to.

It is desirable to support the bolt in the spacer sleeve, so that the spacer sleeve can be formed with the bolt as a preassembled and durable unit and the bolt can be removed only with considerable effort from the spacer sleeve. This facilitates the handling of the transport lock, since the bolt can not easily be lost from the sleeve. In the transport lock described above according to the WO 2006/117253 A1 this desirable combination of the bolt with the spacer sleeve is not possible. To install the transport lock the spacer sleeve is first inserted without the bolt in the housing and moved so that its bore is aligned with a corresponding bore of the oscillating system. The hole in the spacer sleeve is also aligned with a round recess in the housing next to the insertion, so that then the bolt can be pushed through the hole in the housing and the hole in the spacer sleeve for drilling in the oscillating system and screwed there. In this configuration, the bolt is immovably supported by the bore in the housing, and the so ben described damage to the transport safety avoided.

The The invention to be described below is therefore inter alia Out of the task, a set comprising a home appliance and to specify a transport security of the type defined at the outset, in which a pre-assembled unit of spacer sleeve and Bolts are handled and a permanent mounting of the bolt in the spacer sleeve is possible in which, however an impairment of the effect of the transport security through after fixing the housing against the oscillating System acting force is still excluded.

These Task is solved by a set comprising a domestic appliance and at least one transport lock as defined in the claim 1. Preferred and advantageous embodiments of this sentence go from the dependent claims.

Accordingly is given according to the invention a sentence comprising a household appliance with a housing, which is a Wall has, and a suspended in the housing oscillating system, as well as at least one transport security comprehensive a placeable between the wall and the oscillating system Spacer sleeve and a bolt with a head and a cylindrical, an external thread-carrying screw, which Screw member through a first recess in the wall and a first Bore in the spacer sleeve into an internal thread of a second Bore in the oscillating system is screwed, with the spacer sleeve insertable through a second recess in the housing and displaceable between the wall and the oscillating system, such that the first recess and the first bore are aligned with each other, according to the invention, the bolt between the Head and the screw a cylindrical and opposite the screw part extended fitting part, which in the first Recess is positively fit, and that the first Recess and the second recess through a slot in the Wall in which the screw, but not the fitting part, displaceable is connected with each other.

According to the Invention manages to meet two requirements that are incompatible with each other to compete, at the same time, on the one hand allows the transport security encompassing the union the spacer sleeve with the bolt at a distance from the fixing position, in which it must be when the housing and the swinging system to be fixed against each other, in the housing insert and then move to the fixation position, the bolt passing through a slot in the housing of the recess through which he inserted with the spacer sleeve was, is moved away, and during installation of the transport lock but one essentially over the range of full angle effective support of the bolt on the housing too achieve. To get the bolt between the head and the screw part a widened compared to the screw, from the head of the bolt but clearly overtopped passport part. Between the first recess, which the bolt when fixing the transport lock penetrates, and the second recess, through which he is introduced, a slot in the housing provided by which the screw of the bolt, however not the fitting part, when moving the side of the transport lock can move. After fixing the transport lock is the Bolt where the pass range goes into the slot, Although not supported by material of the wall, but receives he through the required support in the direction of the slot the edges of the wall at the transition between the first recess and the slot. Accordingly, the bolt after its fixation fully supported, and accordingly even when a high force occurs during transport of the household appliance with the transport lock a protection against unwanted Move the transport lock given.

The Distance sleeve of the set is preferably approximately cylindrical, particularly preferably approximately circular cylindrical.

Also it is preferred that the spacer sleeve a clamping device for pinching the bolt. That way you can the spacer sleeve and the bolt permanently united with each other and in particular for storage without releasing their connection be filed.

It is particularly preferred that the spacer sleeve is connected via a feasible through the second region bridge with a clampable between the head and the wall support plate, which support plate has a coaxial with the first bore third bore. When installing the transport lock this support plate remains outside of the housing; it indicates the position of the spacer sleeve and can also serve to contact and move the spacer sleeve, which is located inside the housing and therefore not visible to the user of the transport lock. A further preferred embodiment is that on the support plate an arcuate support is formed. Such a holder can be used with advantage in the handling of the transport lock; it may also serve, in the case of a home appliance of the water-bearing type, in particular in the case of a washing machine, a washer-dryer or a dishwasher, to provide a hose for fresh water. or sewage, a cable or the like, temporarily or permanently set.

Furthermore preferred is a set in which the spacer sleeve a Truss-like construction is. Such a truss-like construction is opposite to a version made of solid material lighter and therefore more cost-effective, with regard to the strength properties no compromise. As a material for the distance sleeve comes first each Material in question for use for a fastening purpose is common in a household appliance. Especially preferred is in this sense a filled with talc polypropylene; Instead of the polypropylene, polyamide, polystyrene and ABS are also conceivable. Of interest is also hard rubber, due to the particularly pronounced Rubber elasticity of the material.

Further preferred is a set in which the bolt one between the head and the fitting molded circular washer having; Such a bolt is simple, safe and easy to handle, and eliminates the need for a separate washer. The molded washer preferably has a diameter on, which is about a threefold of a diameter of the screw is.

A preferred dimensioning of the fitment provides that this has a diameter which is about twice a diameter of the Screw corresponds. In this way, in the first recess achieved a convenient holding effect.

A preferred dimensioning of the screw provides that this a diameter between 4 mm and 10 mm, in particular about 6 mm. It is further preferred that the fitting part has a diameter which is at least 2 mm larger than the diameter of the screw part. So will be at a cheap Geometry of the bolt and the recesses in the wall one in particular on a household appliance in the form of a washing machine or a Waschtrockners achieved sufficient effectiveness of the transport lock.

Around the effectiveness of transport safety is to be further improved it is preferred that the wall surround a first recess Reinforcement, in particular in the form of a through clinching or spot welding applied reinforcing sheet, having.

In In this connection, it should be noted that the invention is not necessarily requires that the wall be an integral part of the housing be. Basically, the wall can also be used as a traverse belong, which for the purpose of attaching the transport lock is placed on the housing. However, it is preferred the attachment of the transport lock directly to a wall, the is an integral part of the housing.

If the transport security of the sentence is put into effect, is the Standoff between the wall and the oscillating system used, wherein the fitting part, the first recess and the screw penetrates the first hole and screwed into the second hole is where the bolt over the housing and the oscillating system clamped the spacer sleeve against each other.

Prefers is also a set in which the one housing a plurality of transport locks, particularly preferably a plurality of four Transport locks, is assigned.

In Particularly preferably, the household appliance in the Set in a washing machine, and is the swinging system Lye container (with all associated components) of the washing machine.

preferred Embodiments of the invention are described below the figures of the drawing explained. In detail show:

1 a set comprising a (only partially shown) domestic appliance and a transport safety device;

2 a spacer sleeve of a transport safety device;

3 a bolt of a transport lock;

4 a view of a wall with recesses;

5 a view of a wall with plugged in bolt;

6 a spacer sleeve of a transport safety device; and

7 a view of a household appliance with multiple transport locks.

In the drawing carry each other functionally equivalent or otherwise appropriate Each share the same reference number; and insofar the following applies Description also always corresponding figures.

1 shows a set comprising a domestic appliance 1 with a housing 2 which is a wall 3 Has. In the case 2 with means not shown suspended is a vibrating system 4 , In the household appliance 1 it is a washing machine 1 , and the oscillating system 4 is a tub 4 , The housing 2 and the oscillating system 4 are braced against each other and thus secured for transport. For this purpose there is a circular cylindrical spacer sleeve between them 5 which has a central first hole 6 through which a bolt 7 plugged in and in a second hole 15 that with a corresponding internal thread 16 is provided on the oscillating system 4 is screwed. The bolt 7 which is in 3 shown separately, has a head 8th , which is dimensioned according to common practice as a hexagon and for manipulation with a conventional tool, in particular a jaw or ring spanner, according to a common standard. Besides, the bolt has 7 a cylindrical screw part 9 with an external thread 10 , Furthermore, the bolt has 7 a likewise cylindrical fitting part 11 which is in a first recess 12 (cf 4 ) in the wall 3 is fitted.

2 shows a longitudinal section through the spacer sleeve 5 , It has a clamping device 17 on, with which the bolt 7 can be trapped so that it with appropriate handling of the transport lock 5 . 7 not from the first hole 6 can fall out. Also has the spacer sleeve 5 one over a bridge 18 with this connected support plate 19 with one to the first hole 6 coaxial third bore 20 for the introduction of the bolt 7 ,

In 3 can be recognized by the bolt 7 next to the head, the fitting part 11 and the screw part 9 besides external thread 10 one between the head 8th and the fitting part 1 molded washer 21 , This gives the head 8th a defined overlay on the wall 3 or the support plate 19 , in particular in 1 recognizable.

4 shows the wall 3 which apply to the transport security 5 . 7 is set up. One recognizes a first recess 12 which is substantially circular and in which the fitting part 11 of the bolt 7 (see. 1 and 3 ) must be fitted. Next to the first recess 12 and slightly distanced from this is a slightly larger second recess 13 through which the spacer sleeve 5 in the case 2 can be introduced. The first recess 12 and the second recess 13 are connected by a slot 14 which is just so wide that the screw part 9 of the bolt 7 but not its part 11 , can be pushed through. After insertion, the spacer sleeve 5 under the leadership of the screw 9 through the slot 14 shifted so far sideways that its fitting part 11 with the first recess 12 flees; then the bolt is aligned 7 also with the second hole 15 in the oscillating system 4 (see. 1 ), and the bolt 7 can be screwed down.

The arrangement of the bolt 7 relative to the wall 3 goes out too 5 out. There is shown how the fitting part 11 in the first recess 12 is fitted. It is also recognizable as edges of the wall 3 or the reinforcing sheet still applied to them 23 at the transitions between the first recess 12 and the slot 14 the bolt 7 against shifting along the slot 14 and to the second recess 13 back up. For this it is sufficient if at each of these edges about 1 mm material of the wall 3 and the reinforcement 23 be available. Preferred dimensions for the bolt are listed above.

6 shows a preferred embodiment of the spacer sleeve 5 , This consists not of solid material, but of a framework, while maintaining the preferred, basically circular cylindrical outer shape. It can be produced in particular as a plastic injection molded part; preferred materials are listed above.

7 shows a view of a back of a household appliance 1 , in particular a washing machine 1 , This has a substantially prismatic housing 2 in which a vibrating system 4 is suspended, namely a tub 4 passing through a rear opening in the housing 2 is recognizable. With four transport locks 5 , what a 7 are not discernible in detail and correspond to one of the embodiments described herein, is the tub 4 against the case 2 braced and comprehensively secured for transport.

1

Household appliance, Washing machine

2

casing

3

wall

4

swinging System, tub

5

Stand Off

6

First drilling

7

bolt

8th

bolt head

9

screw

10

external thread

11

fitting part

12

First Recess in the wall

13

Second Recess in the wall

14

slot in the wall

15

Second drilling

16

inner thread

17

clamper

18

bridge

19

support plate

20

third drilling

21

washer

22

bracket

23

reinforcement

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2006/117253 A1 [0002, 0007]
• EP 0829567 B1 [0003]
• - EP 1498537 A1 [0003]
• - EP 1491675 A2 [0003]

Claims (15)

Set comprising a household appliance ( 1 ) with a housing ( 2 ), which has a wall ( 3 ), and one in the housing ( 2 ) suspended oscillating system ( 4 ), as well as at least one transport security ( 5 . 7 ) comprising one between the wall ( 3 ) and the oscillating system ( 4 ) Placeable spacer sleeve ( 5 ) and a bolt ( 7 ) with a head ( 8th ) and a cylindrical, an external thread ( 10 ) carrying screw part ( 9 ), which screw part ( 9 ) through a first recess ( 12 ) in the wall ( 3 ) and a first bore ( 6 ) in the spacer sleeve ( 5 ) in an internal thread ( 16 ) a second bore ( 15 ) in the oscillating system ( 4 ) is screwed, wherein the spacer sleeve ( 5 ) by a second recess ( 13 ) in the housing ( 2 ) and between the wall ( 3 ) and the oscillating system ( 4 ) is displaceable, so that the first recess ( 12 ) and the first hole ( 6 ) are aligned, characterized in that the bolt ( 7 ) between the head ( 8th ) and the screw part ( 9 ) a cylindrical and opposite the screw ( 9 ) extended passport part ( 11 ), which in the first recess ( 12 ) is positively fit, and that the first recess ( 12 ) and the second recess ( 13 ) through a slot ( 14 ) in the wall ( 3 ), in which the screw part ( 9 ), but not the passport part ( 11 ), is displaceable, interconnected. Set according to claim 1, wherein the spacer sleeve ( 5 ) is approximately cylindrical, preferably approximately circular cylindrical. Kit according to one of the preceding claims, in which the spacer sleeve ( 5 ) a clamping device ( 17 ) for pinching the bolt ( 7 ) having. Kit according to one of the preceding claims, in which the spacer sleeve ( 5 ) over one through the slot ( 14 ) feasible bridge ( 18 ) with one between the head ( 8th ) and the wall ( 3 ) clampable support plate ( 19 ), which support plate ( 19 ) one with the first hole ( 6 ) coaxial third bore ( 20 ) having. Set according to Claim 4, in which the support plate ( 19 ) an arcuate holder ( 22 ) is formed. Kit according to one of the preceding claims, in which the spacer sleeve ( 5 ) a framework ( 5 ). Sentence according to any one of the preceding claims; where the bolt ( 7 ) one between the head ( 8th ) and the fitting part ( 11 ) formed circular washer ( 21 ) having. Set according to claim 7, in which the washer ( 22 ) has a diameter which is about three times a diameter of the screw ( 9 ) is. Record according to one of the preceding claims, in which the pass part ( 11 ) has a diameter which is approximately one-twofold of a diameter of the screw part ( 9 ) corresponds. Kit according to one of the preceding claims, in which the screw part ( 9 ) has a diameter between 4 mm and 10 mm, in particular about 6 mm. Set according to claim 10, in which the fitting part ( 11 ) has a diameter which is at least 2 mm larger than a diameter of the screw part ( 9 ). Set according to one of the preceding claims, in which the wall ( 3 ) one the first recess ( 12 ) surrounding reinforcement ( 23 ) having. Kit according to one of the preceding claims, in which the spacer sleeve ( 5 ) between the wall ( 3 ) and the oscillating system ( 4 ), wherein the fitting part ( 11 ) the first recess ( 12 ) as well as the screw part ( 9 ) penetrates the first bore and in the second bore ( 15 ) is bolted, wherein the bolt ( 7 ) the housing ( 2 ) and the oscillating system ( 4 ) over the spacer sleeve ( 5 ) braced against each other. Kit according to one of the preceding claims, comprising a housing ( 2 ) and a plurality of transport locks ( 5 . 7 ), preferably a plurality of four transport locks ( 5 . 7 ). Kit according to one of the preceding claims, in which the domestic appliance ( 1 ) a washing machine ( 1 ) and the oscillating system ( 4 ) a tub ( 4 ).