DE2141584A1 - HOUSING FOR HAND MACHINE - Google Patents

Description

July 28, 1971 Reg.Nr.286-1

2U1584

Karl-M. Reich, Maschinenfabrik, Nürtingen Housing for hand machine

The present invention relates to one of two releasable with one another connected shells existing housing for a hand machine with a motor-driven rotating tool, such as a hand planing machine, in which an electric motor has a planing head with a Axis drives. It is known that the housing for such a machine as a die-cast part made of an aluminum alloy or as an injection molded part made of plastic as a one-piece body. To install the various parts of the machine, such as the motor, planing head, electrical accessories, guide sleeve for the sliding support plate, etc., are required according to Outside open bores, hollows and breakthroughs are provided, which must first be processed and then with different ones Lids are closed. This requires both when processing and when assembling the Machine a considerable amount of time.

The object of the present invention is therefore to make consistent use of modern manufacturing processes, such as Die casting in aluminum alloys or injection molding in plastic to produce a housing body that is as little as possible Requires rework and with which the machine can be put together in a very short time. The task will be solved in that two detachably connected shells are used for the housing, the parting plane

309809/0083

at least one of the axes of the motor or tool intersects perpendicularly and that both shells hold means for between have built-in parts of the machine, e.g. motor, tool, guide sleeve, deflector flap, cables, etc. It this results in shell bodies which can be produced particularly economically in die casting or injection molding, in which the Holding means for the various internal parts are already included or can easily be used and with which the machine can be put together quickly.

In an advantageous embodiment, they are made of one-piece Bodies existing shells divided into segments by transverse walls, each internal part, such as e.g. motor, tool, guide sleeve, a segment is assigned. If each segment is now at at least three points, for example by screws, firmly connected to one another, this results in box-shaped cross-sections with considerable Torsional stiffness that also allows a material with a low Ε module, such as thermoplastic Plastic to use.

The embodiment according to the present invention now also allows in the mutually associated shells in the area the handle has a chip ejection channel with ejection openings to be provided on both sides and to make recesses in the contact surfaces of the shells, in which the bearing journals engage a pivoting flap. The ejected stream of chips can be easily pivoted through this Guide the flap through the ejection opening facing away from the operator.

For the introduction of the cable through which the electric motor is fed the current, is according to the present invention a breakthrough arranged perpendicular to the parting plane is provided on the back of the handle in the shells, into which a correspondingly shaped cover can be inserted. When changing the cable, the

309809/0083

whole machine to be dismantled, it suffices to use the Remove the cover with the inserted anti-kink sleeve for the cable. At the same time, a ribbed attachment can be made on the lid be provided that the cable inside the handle with inserted cover against an opposing ribbed Presses the abutment in the handle and holds the cable, thus relieving the strain.

Since hand planing machines need a movable top plate, the guide sleeve of which must be guided in the housing? this sliding guide can be carried out particularly expediently in the design of the housing according to the present invention. However, this feature is the subject of a separate application under file number. Furthermore, the design of the housing offers itself So see the bowls in front of _f . that these files only need to be inserted when assembling the machine.

The two shells forming a housing are advantageously designed essentially mirror images, glass fiber reinforced polyamide, for example, is used as the material. The invention can also be used advantageously Use other types of motor-driven hand machines and factory equipment, with an electric motor © also, for example, a compressed air motor to drive the stuff can be provided.

309809/0083

2H1584

The following is an embodiment of the invention below Described in more detail with reference to the drawings:

Show it:

Fig.l middle section through a hand planing machine according to the present invention.

Fig. 2 section along line II - II in Fig.l.

Fig. 3 Front view of the hand planer, a shell removed.

The housing 1 contains an electric motor 2 which, via a belt, the rotating tool 3, in the present case a Planer head, drives. A part of the housing 1 is designed as a handle 4, in which the electrical accessories, such as Switches, terminals, capacitors, etc., are housed. In the front part of the handle there is a chip ejection channel 5 provided, which has openings on both sides. At the front end, seen in the working direction, are in the housing Guide members 6 are arranged, which guide the guide sleeve 7 of the adjustable support plate 8.

The housing itself consists of two essentially mirror images shaped shells 9 and 10, the plane of separation of which is the parallel axes of the motor and Tool cuts vertically. The shells are made as a one-piece body from glass fiber reinforced polyamide and inside by transverse walls or enclosing walls il2) fü;

30980S / 0083

2U1584

Motor and tool subdivided in such a way that individual segments arise, which form inherently rigid box cross-sections after connecting the two shells with screws 13. Included at least three screws 13 are used for each segment, in the form of a triangle in the outermost Corners of the segment are arranged and thus enable optimal stiffening.

In the area of the chip ejection channel 5, recesses 14 are provided in the contact surfaces of the shells 9, IO, in FIG the bearing journals 15 of a pivotable deflecting flap 16 engage. This flap itself as a one-piece Plastic part is formed, closes the chip ejection channel 5 upwards in such a way that the chips generated by the tool and thrown upwards come out to the side be thrown out of the housing. Depending on the setting of the deflecting flap 16, this takes place on the side facing away from the operator. Since the bearing pin 15 of the deflection flap are rotatably mounted in the recesses 14 and a displacement in the axial direction by the on the inner walls 17 of the shells 9, 10 abutting baffles 16 'is prevented, the deflection flap can be removed when assembling the two shells 9 and 10 can be easily mounted without screws or other fasteners.

The introduction of cable 18 takes place through an opening 19 on the rear back of the handle 4 in the shells 9 and 10 is recessed. A cover 20, which is held in place by screws, is used to close this opening 19 will. In this position, a projection 22 connected to the cover 20 presses the cable 18 against the abutment 23, which are integrally connected to the shells 9 and 10. The cable is thus strain-relieved.

309809/0083

Claims (5)

2U1584 - D - Claims 1) / Housing consisting of two detachably connected shells for an agricultural machine with a motor-driven rotating tool, characterized in that the parting plane (11) of the two shells (9, 10) at least one of the axes of the motor (2) or tool ( 3) cuts vertically and that both shells (9, 10) have holding means (6, 14, 23) for parts of the machine (2 _t 3, 7, 18) arranged between them. 2) Housing according to claim 1, characterized in that the shells (9, 10) connected to one another in one piece, have segments separated from one another by transverse walls C12), each of which is connected to one another at at least three points are connected. 3) Housing according to claim 1 or 2, characterized in that the shells (9, 10) with a chip ejection channel (5) Have ejection openings on both sides and in the contact surfaces of the shells (9, 10) grooves (14) are provided in which the bearing pin (15) can be inserted and pivoted into the chip ejection channel (5) Engage the deflector flap (16). 4) Housing according to one of claims 1-3, characterized in that the opening (19) closing Lid (20) has a shoulder (22) and the shell (9, 10) has an abutment (23) which, together with inserted Clamp the cover (20) and the cable (18). 309809/0083 2H1584 5) Housing according to one of claims 1 to 4, characterized in that that the two shells (9, 10) forming a housing (1) are essentially mirror images as one-piece bodies made of plastic are molded. 30980 9/0083 Empty soap