# US 2018/0021934 A1 · Arrangement of housing and guide tube and handheld work apparatus having said arrangement

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- Number: US 2018/0021934 A1
- Document ID: US20180021934A1
- Status: Published application
- Kind: A1
- Application number: 15/659,470
- Filed: 2017-07-25
- Published: 2018-01-25
- Earliest claimed: 2016-07-25
- Assignees: Andreas Stihl AG & Co. KG
- Applicants: Andreas Stihl AG & Co. KG
- Inventors: Dirk Foerstner; Martin Failenschmid; Konrad Frencel
- Web page: https://patentgrep.com/patent/US20180021934A1

## CPC

- B25F 5/028: {to be supported by a fixed object}
- A01D 34/81: Casings; Housings (A01D34/71 takes precedence)
- A01D 34/82: Other details
- A01D 34/90: for carrying by the operator
- B25F 5/026: {in the form of an auxiliary handle (B25F5/024 takes precedence)}
- B25G 1/04: telescopic; extensible; sectional
- B65B 51/306: {Counter-rotating devices}
- A01D 34/68: with motor driven cutters or wheels
- A01D 2034/907: {Control levers for portable mowing machines}
- B25F: COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR {(machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass B23P23/00 and subgroups)}
- A01D: HARVESTING; MOWING
- B25G: HANDLES FOR HAND IMPLEMENTS (attaching the blades or the like to handles of hand tools for soil working A01B1/22; handles of hand implements for harvesting A01D1/14; handles integral with brushware A46B)
- B65B: MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING (bundling and pressing devices for cigars A24C1/44; devices for tensioning and securing binders adapted to be supported by the article or articles to be bound B25B25/00; applying closure members to bottles, jars or similar containers B67B1/00-B67B6/00; concurrent cleaning, filling and closing of bottles B67C7/00; emptying bottles, jars, cans, casks, barrels or similar containers B67C9/00)

## Abstract

An arrangement of a housing and a guide tube is provided wherein one end of the guide tube is held in the housing. The position of the guide tube is adjustable relative to the housing in the direction of the longitudinal center axis of the guide tube. A rotation stop stops swiveling of the guide tube relative to the housing and includes a guide part. The guide part is mounted in one of the guide tube and housing. A longitudinal wall runs in the direction of the axis on the other one of the guide tube and housing. The longitudinal wall interacts with the guide part during swiveling of the guide tube about its axis. The guide part is tiltable relative to the guide tube about a tilt axis. The tilt axis runs along the guide tube and at a distance (a, b) from the axis of the guide tube.

## Claims

### Claim 1

A housing and guide tube arrangement comprising:
a housing;
a guide tube having a longitudinal center axis defining a direction;
said guide tube having a first end and being held in said housing at said first end;
said guide tube having a position relative to said housing adjustable in the direction of said longitudinal center axis;
at least one rotation stop to stop a swiveling of said guide tube relative to said housing;
said guide tube and said housing defining first and second components;
said rotation stop including a guide part journalled in one of said components;
the other one of said components having a longitudinal wall arranged therein running in the direction of said longitudinal center axis;
said guide part and said longitudinal wall being configured to coact in response to a swivel movement of said guide tube about said longitudinal center axis;
said guide part being tiltable with respect to said guide tube about at least one tilt axis; and,
said tilt axis running along said guide tube at a distance (a, b) to said longitudinal center axis.

### Claim 2 (depends on 1)

The arrangement of claim 1, wherein said guide part is tiltable about said tilt axis through a tilt angle (α, β) from a rest position to a tilt position; and, said angle (α, β) is at least 1°.

### Claim 3 (depends on 1)

The arrangement of claim 1, wherein said tilt axis lies outside of said guide tube.

### Claim 4 (depends on 1)

The arrangement of claim 1, further comprising:
a receptacle for accommodating said guide part therein;
said guide part including a foot and a head;
said foot of said guide part being mounted at least partially in said receptacle so as to cause said head to project out of said receptacle and coact with said longitudinal wall.

### Claim 5 (depends on 4)

The arrangement of claim 4, wherein said guide part has loaded and unloaded states; said head of said guide part has a width (c) measured perpendicular to the radial direction of said guide tube and perpendicular to said longitudinal center axis; and, said head further has a height (i) measured radially relative to said guide tube.

### Claim 6 (depends on 5)

The arrangement of claim 5, wherein said receptacle has a width (e) measured in the same direction as said width (c); and, said width (c) of said head is greater than said width (e) of said receptacle.

### Claim 7 (depends on 4)

The arrangement of claim 4, wherein said foot of said guide part has a width (d) measured perpendicular to said longitudinal center axis and perpendicular to said radial direction and has a length (g) measured in the direction of said longitudinal center axis; and, at least one of the dimensions of said width (d) and length (g) is less than the dimension of said receptacle measured in said direction as said dimensions width (d) and length (g).

### Claim 8 (depends on 4)

The arrangement of claim 4, wherein said foot has at least one guide section configured to move out of said receptacle in response to a tilting of said guide part about said tilt axis causing said guide section to extend in the manner of a cylindrical section about the tilt axis corresponding thereto.

### Claim 9 (depends on 8)

The arrangement of claim 8, wherein said receptacle has a longitudinal edge; and, said guide section moves along said longitudinal edge of said receptacle when tilting.

### Claim 10 (depends on 4)

The arrangement of claim 4, wherein said guide tube and said guide part conjointly form a stop; and, said tilt angle (α, β) has a maximum tilt angle (α, β) determined by said stop.

### Claim 11 (depends on 10)

The arrangement of claim 10, wherein said foot has a stop section; and, said stop section and said guide tube conjointly define said stop.

### Claim 12 (depends on 1)

The arrangement of claim 1, wherein said receptacle has a rectangular cross section.

### Claim 13 (depends on 1)

The arrangement of claim 1, wherein said receptacle is formed on said guide tube; and, said guide part is held at a fixed location on said guide tube in said direction of said longitudinal center axis.

### Claim 14 (depends on 1)

The arrangement of claim 1, wherein said head has a planar flat flank coacting with said longitudinal edge in response to a swiveling of said guide tube about said longitudinal center axis thereof.

### Claim 15

A handheld work apparatus comprising:
a housing;
a guide tube having a longitudinal center axis defining a direction;
said guide tube having a first end and being held in said housing at said first end;
said guide tube having a position relative to said housing adjustable in the direction of said longitudinal center axis;
at least one rotation stop to stop a swiveling of said guide tube relative to said housing;
said guide tube and said housing defining first and second components;
said rotation stop including a guide part journalled in one of said components;
the other one of said components having a longitudinal wall arranged therein running in the direction of said longitudinal center axis;
said guide part and said longitudinal wall being configured to coact in response to a swivel movement of said guide tube about said longitudinal center axis;
said guide part being tiltable with respect to said guide tube about at least one tilt axis;
said tilt axis running along said guide tube at a distance (a, b) to said longitudinal center axis;
said guide tube having a second end facing away from said first end; and,
a tool head mounted on said second end of said guide tube.
