EP0672465B1 - Working tool - Google Patents

Abstract

The tool has a support element (12) with a handle (13) and a working part fitted to it. The working part can be turned on the handle to the required angle and fixed. The front end of the handle is widened like a fan. The Support element can be pivotably adjusted on the handle which consists of at least two shell components (15,16), which can be fixed to each other, fitting between the parts of the support element. The handle may have a slit aperture to accommodate the support element.

Description

The invention relates to an implement according to the preamble of claim 1, such as from DE-A-3 708 463 is known.

The invention is intended to be based on a paint roller can be explained, however, the invention in similarly also with other work equipment, for example a puller, a water slide, a scrubbing brush or a broom.

A paint roller usually has a support element in Shape of a support bracket made of a curved round steel on which a handle is attached at one end is. The opposite free end of the bracket runs essentially straight and extends approximately perpendicular to the longitudinal axis of the handle. At this free end, the user can create a work part slide on or put on a roll in the shape of the the support bracket rotatably and by suitable Means, usually a locking or stop device is held on the bracket. On the outside surface is the role with one for transferring Color suitable cover with a pile of lambskin, Plush, fleece or the like provided.

Such a paint roller is used in particular Painting walls, facades etc. Use. Around even higher areas of walls and especially to be able to paint on ceilings without having to climb a ladder or scaffolding can Paint roller handle with an extension handle be connected so that the user on the floor standing up with the paint roller in a simple way can apply the ceiling. Because of the relatively long However, it is an extension handle for a user difficult to use the paint roller in the various working positions each so that the by the Reel printing and the direction of ink application optimal to the structure of the paint Surface is adjusted.

DE-A-37 08 463 is a cleaning device for Window panes known in which the a cleaning tool in the form of a rubber bar with clamping jaws pivotable relative to the handle and in one desired pivot position can be set on the handle are. For this purpose there is one on the jaws semi-circular toothing formed, in which is a locking lever slidably mounted on the handle can intervene. That way they can Clamping jaws in different swivel positions relative to the handle to be set securely constructive effort for the swivel and in particular however, the locking device is high, causing the Manufacture of the cleaning device time and cost intensive is.

A paint roller is known from DE 93 09 948 U1, at which the bracket is pivotally mounted on the handle. Although ensured with the paint roller in this way may be that the role in the different Working positions on the surface to be painted the difficulty arises that the stability of the paint roller due to the pivotability reduced and thus the power transmission from the handle is adversely affected on the role. This has to As a result, it is difficult to achieve a desired roll pressure as well as a desired roll direction with accuracy to achieve.

The invention has for its object a tool to create the kind mentioned in different Working positions is easy to handle.

According to the invention, this task is performed by an implement solved according to claim 1. Appropriate developments of the invention are the subject of dependent claims 2 to 19. The fan-like widening of the handle is for a very good guide for the user when working at different angles and serves when in use as a thumb rest.

The handle consists of at least two shell parts that can be attached to each other and between which the support element or the support bracket is held. Because in this way the handle itself the support element or the support bracket is stored and fixed, a structurally simple design is achieved. If the user uses a paint roller with the invention Use design in a conventional manner wants, he aligns the bracket relative to the handle such that the longitudinal axis of the handle essentially runs perpendicular to the axis of rotation of the roller, as is usual with paint rollers. The extension handle can be attached to the handle in such a way that it runs in the direction of its longitudinal axis. If the user the orientation of the bracket relative to Handle wants to change the roll direction of the paint roller relative to the longitudinal axis of the handle or To change the extension handle, he swings the Carrying bracket around its pivot bearing on the handle until it has the has reached the desired swivel position. In this is the support bracket between the shell parts in any Way, for example by means of a clamp or Locking can be set.

The adjustability of the support element or bracket relative to the handle can be stepless or in predetermined Angular gradations take place. The latter leaves reach in a simple manner when the support member or the support bracket in different swivel positions can be locked on the handle.

In a further development of the invention, that the handle has a slot-like recess, in which the support element is guided. By means of the A guide in the slot-like recess can achieve precise adjustment movement. In a simple way the slot-like recess is to be formed if this is formed between the shell parts.

For a clear position positioning of the support element or the support bracket relative to the handle, can be provided that in at least one shell part Recesses are formed, the recordings for the support element or the support bracket in the different Define swivel positions. To change the The support element or the support bracket becomes pivoted converted from one recording to another. This can result in slight elastic deformation the material of the shell parts are done, which in particular is given if the shell parts are made of plastic, hard plastic, for example. if the Shell parts, however, for reasons of stability from an im essential inelastic material, e.g. a metal exist, the shell parts must first of all solved or at least relaxed their mutual intervention be so that the support member or the bracket can be converted into another recording. Are preferably in each shell part with each other corresponding recesses are formed.

For handling reasons, it has proven useful if the Recesses at the front end of the handle in the area the exit of the support element or the support bracket are arranged because in this way a quick and easy adjustment of the support element or the support bracket relative to the handle is possible.

The shell parts must be securely attached to each other be reliable to the support element or the bracket to be able to store and hold. In an execution of the The invention is therefore provided that the shell parts are locked together so that they move quickly detach from each other and fasten to each other again leave when the support element or the bracket is adjusted shall be. However, it is also an alternative possible that the shell parts by means of a clamping screw are attached to each other. Such Screw fastening secures even after a long period of use a firm mutual connection of the Shell parts and thus a safe positioning of the Supporting element or the bracket.

In a preferred embodiment of the invention, that the clamping screw forms the swivel axis, which reduces the number of necessary components and the design effort is kept simple. The Support element or the bracket can be done in a simple manner pivotable on the swivel axis or the tensioning screw be stored when he or it is at its lower end with one around the swivel axis or clamping screw Section is provided. If necessary, you can further guide means can be provided around the support element or the support bracket when pivoting about Guide pivot axis or clamping screw.

This is preferably the pivot axis or clamping screw encompassing section U-shaped, wherein the two legs are essentially parallel and from the pivot axis to the front end of the Extend handle. In this way, the comprehensive Section in its curved area, i.e. of the Base of the U-shape, about 180 ° on the swivel axis or the clamping screw, which makes a good Leadership is reached.

In a preferred embodiment of the invention, that the support element or the bracket in which the Section encompassing the pivot axis or clamping screw is held against rotation. This can be achieved be that a locking element on the pivot axis is arranged with the encompassing section the support element can be brought into non-rotatable engagement. The locking element preferably has the above Edges or teeth that are profiled Carrier element can be brought into engagement. The locking element can either be a gear or something similar, a toothed component can be formed, however, it is also possible to provide a polygon. The support element or the bracket is on the inside of the encompassing section with a corresponding one Gearing or profiling, so that a rotation of the support element or bracket relative to the swivel axis or clamping screw is prevented.

To the support element or the bracket relative to the Adjusting the handle should be the encompassing section optionally in a set on the locking element Lockable position or a release position can be brought be in which the support member relative to the locking element is pivotable. For this purpose be provided that the encompassing section through Spread his legs brought into the release position can be. Spreading the legs causes that the gears or profiles between the Swivel axis or the clamping screw and the encompassing Section of the support element or the bracket disengage so that the new one you want relative pivot position can be set.

The legs of the bracket can either be due to their own elasticity or due to external tension return to the locked position. In preferred Embodiment of the invention provides that the encompassing section in its locked position by means of a clamping element is held, the legs on maintains a predetermined mutual distance. The Clamping element, which is preferably between the two Thighs acts, moreover prevents an unintentional Release the set swivel position between the support element or the support bracket and the Handle.

According to a possible embodiment, the clamping element a spacer that can be moved along the legs be. In this case, at least one Thigh one section towards the other Is offset, i.e. a reduced distance to this one. If the spacer in this offset portion of the leg is moved this leads to a spread of the thighs, which the o.g. Approval position corresponds. If the spacer back to a non-displaced section of the Leg is pushed back, the legs sweep in their locking position back.

Alternatively, it is possible for the tensioning element to be attached one of the legs pivotally mounted swivel bracket is that can reach behind the other leg. If the swivel tab does not reach behind the other leg, the legs are in their release position. To the legs in their locked position bring, they are preferably towards each other manually moves and the swivel tab is in one position brought, in which she reaches behind the other leg. In this way, the legs are on a predetermined mutual distance, i.e. in the locked position held.

Although a pivoting of the support element or Carrying bracket in different levels should be possible the pivot axis essentially perpendicular to the longitudinal axis of the handle. At the same time a paint roller that the pivot axis essentially perpendicular to the axis of rotation of the roller runs, so that a pivot essentially in the from the axis of rotation of the roller and the longitudinal axis of the Handle spanned level takes place. Like conventional ones Paint rollers should be the longitudinal axis of the handle essentially perpendicular to the axis of rotation of the Roll.

Figur 1

einen Farbroller in Seitenansicht,

Figur 2

den Handgriff bei einem abgenommenen Schalenteil,

Figur 3

einen Vertikalschnitt durch den Handgriff gemäß Figur 2,

Figur 4

eine Aufsicht auf den Handgriff gemäß Figur 2, wobei der Tragbügel weggelassen ist,

Figur 5

einen Handgriff mit abgenommenem Schalenteil gemäß einem 2. Ausführungsbeispiel,

Figur 6

den Schnitt VI-VI in Figur 5,

Figur 7

den Handgriff gemäß Figur 5 in der Freigabestellung,

Figur 8

einen Handgriff mit abgenommenem Schalenteil gemäß einem 3. Ausführungsbeispiel,

Figur 9

den Schnitt IX-IX in Figur 8 und

Figur 10

den Handgriff gemäß Figur 9 in der Sperrstellung.

An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it:

Figure 1

a paint roller in side view,

Figure 2

the handle with a removed shell part,

Figure 3

3 shows a vertical section through the handle according to FIG. 2,

Figure 4

2 shows a top view of the handle according to FIG. 2, the carrying bracket being omitted,

Figure 5

a handle with removed shell part according to a second embodiment,

Figure 6

the section VI-VI in Figure 5,

Figure 7

5 in the release position,

Figure 8

a handle with removed shell part according to a third embodiment,

Figure 9

the section IX-IX in Figure 8 and

Figure 10

the handle of Figure 9 in the locked position.

According to FIGS. 1 and 4, a paint roller 10 has one from a round steel bent support bracket 12, the upper free end is essentially straight. On the upper free end is a paint roller 11 placed such that they can be rotated about an axis of rotation D. is. At the lower end of the bracket 12 is a handle 13 attached, the longitudinal axis L essentially perpendicular to the axis of rotation D of the roller 11.

The handle 13 consists of a first shell part 15 and a second shell part 16, which means a clamping screw 14 are clamped against each other and take the lower end of the bracket 12 between them and clamp.

As particularly shown in Figures 2 and 3, this includes first shell part 15 a lower handle 15b, the connected in one piece to an upper half-shell 15c is. There are several at the upper edge of the half-shell 15c Recesses 15a are formed, into which the support bracket 12 can be used in a narrow version. On the Longitudinal axis L and approximately in the middle of the half-shell 15c is a nozzle-like approach 17, in which the Tension screw 14 can be inserted.

The bracket 12 is at its lower end with a U-shaped bent portion 12a provided extends over about 180 ° and the inside diameter in essentially the outer diameter of the nozzle-like Approach 17 corresponds. This way two are in the substantially parallel legs 12b and 12c formed. The bracket 12 can with its bent portion 12a the neck-like approach 17 under a narrow frame reach around and be pivoted about this.

On the upper half-shell 15c of the first shell part 15 the second shell part 16 can be put on. By means of the The two shell parts 15, 16 become clamping screw 14 clamped against each other, whereby the support bracket 12 disengagement from the nozzle 17 is hindered.

As particularly shown in Figure 4, is between the shell parts 15 and 16 a slit-like at the top Recess 19 formed in which the bracket 12 at Swivel around the clamping screw 14 is guided. Also the second shell part 16 has at its upper edge Recesses 16a with the recesses 15a of the upper Half-shell 15c correspond and together with these Form receptacles 18 for the bracket 12. The one from the Recesses 15a, 16a are formed receptacles 18 each via the slot-like recess 19, i.e. Reduced diameter sections with each other in Connection.

The handle 13 is fan-shaped at its front end widened, which makes a very good guidance when using the paint roller under different angles is given. It also serves the fan-like broadening as a thumb rest and it sufficient space is created to the support bracket 12th to guide when swiveling.

If the support bracket 12 between the shell parts 15, 16th is held and around that defined by the clamping screw 14 Swivel axis S is to be pivoted, takes hold the user carries the bracket 12 and forces it through the section of reduced diameter under elastic Expansion of the material of the shell parts in the Adjacent shot, also from a recess 15a and a recess 16a is formed. In The respective bracket 18, the support bracket 12 is form-fitting held.

As can be seen in Figure 3, the handle 13 is hollow trained and has at its lower end Insert opening for an extension handle, not shown on.

Figures 5 to 7 show a second embodiment the invention. The handle 13 consists of a first shell part 15 and a second shell part 16, which are fastened to one another in the manner described above are. In Figures 5 and 7 is the shell part 16 not shown. The first shell part 15 has a lower handle 15b, which with a upper half shell 15c is integrally connected. In the In the middle of the half-shell 15c is a neck-like approach 17 molded onto which a locking ring 20 rotatably is put on. The locking ring 20 is on his outer peripheral surface with radially protruding teeth 20a provided.

The support bracket 12 has one at its lower end U-shaped bent section 12a, so that two in essentially parallel legs 12b and 12c are provided. The base of the U-shaped bent Section 12a engages around the locking ring 20 below tight fit. On the inner surface of the encompassing Section 12a is a profiling, not shown provided with the teeth 20a of the locking ring 20 can engage. If the Profiling is engaged with the teeth 20a, the bracket 12 is rotatable relative to the handle 13 held.

The right leg 12c of FIGS Support bracket 12 has a in near its free end Section offset in the direction of the other leg 12b 12d on. This way the distance between the offset section 12d and the opposite Leg 12b less than the distance between the others Areas of the leg 12c to the opposite Leg 12b.

There is a spacer on the two legs 12c and 12b 21 slidably mounted, the distance between the two legs 12c and 12b determined. The Width of the spacer tab 21 is chosen so that the legs 12b and 12c usually in parallel Alignment, whereby the teeth 20a of the locking ring 20 with the profile of the bracket 12 are engaged and the support bracket rotatably is held on the handle. This position is in Figure 5 shown.

When the bracket 12 is pivoted relative to the handle 13 should be, the tab according to Figure 5 or 7 shifted downwards, whereby they are in the offset section 12d. Since the distance of the Section 12d to the opposite leg 12b is reduced, the legs of the bracket 12 spread apart, as shown in Figure 7. As a result, the teeth 20a of the locking ring 20 come from the profiling of the bracket 12 at least as far disengaged that the handle 13 relative to the bracket 12 can be pivoted. After these two Components in the desired swivel position have, the spacer tab 21 again in the figure 5 position shown moved, causing the legs 12b and 12c again aligned parallel to each other and their spread is removed. In this Position, the bracket 12 is again rotatably on the handle 13 held.

Another embodiment is shown in FIGS shown, which differs from that in FIGS 7 embodiment shown only in the configuration of the clamping element holding the legs differs. As Figure 8 shows, the bottom is of the bracket 12 also bent into a U-shape, so that two opposite legs 12b and 12c are formed are. In the normal state shown in Figure 8 however, these legs do not run parallel to each other, but are spread to a small extent. This corresponds to the release position in which the support bracket 12 can be pivoted relative to the handle 13. On the left leg 12b according to the figures is one Swivel bracket 22 pivotally mounted at a distance has a projection 22a from its pivot axis, who can reach behind the other leg 12c. How FIGS. 8 and 9 show the projection engages behind 22a of the swivel bracket 22 the leg 12c in the release position not so that the legs 12b and 12c take their spread position.

If the swivel tab 22 from that shown in Figure 9 Position pivoted into the position shown in Figure 10 in which the projection 22a the leg 12c engages behind, this is in the direction of the leg 12b curious; excited. Because of this facing each other Movement of the legs 12b and 12c kick the teeth 20a the locking ring 20 with the profiling of Support bracket 12 in engagement so that the support bracket 12th is held in rotation on the handle.

To release this locked position, it is only necessary to the swivel tab 22 into that shown in FIG To pivot release position in which the projection 22a no longer engages behind the leg 12c. The thigh 12c then returns to its due to its elasticity Starting position back, in which the two legs 12b and 12c are spread and thus the engagement between release the handle and the handle.

Claims (19)

1. Working tool, particularly paint roller, stripper, water pusher, scrubber, etc., having a support member (12) provided with a handle (13) and onto which can be mounted a working part (11) and which is pivotably mounted on the handle (13), as well as being fixable in a desired pivoting position to the handle (13), characterized in that the front end of the handle (13) is widened in fan-like manner and comprises at least two shell parts (15, 16), which can be fixed to one another and between which is held the support member (12).
2. Working tool according to claim 1, characterized in that the support member (12) can be locked to the handle (13) in different pivoting positions.
3. Working tool according to claim 1 or 2, characterized in that the handle (13) has a slot-like recess (19), in which the support member (12) is guided.
4. Working tool according to claim 3, characterized in that the slot-like recess (19) is formed between the shell parts (15, 16).
5. Working tool according to one of the claims 1 to 4, characterized in that recesses, which define the pivoting positions, are formed in at least one shell part (15, 16).
6. Working tool according to claim 5, characterized in that corresponding recesses (15a, 16a) are formed in each shell part (15, 16).
7. Working tool according to claim 5 or 6, characterized in that the recesses (15a, 16a) are located on the front end of the handle (13) in the area of the outlet of the support member (12).
8. Working tool according to one of the claims 1 to 7, characterized in that the shell parts (15, 16) can be locked together.
9. Working tool according to one of the claims 1 to 7, characterized in that the shell parts (15, 16) can be fixed together by means of a setscrew (14).
10. Working tool according to claim 9, characterized in that the setscrew (14) forms the pivoting axis (S).
11. Working tool according to one of the claims 1 to 10, characterized in that, at its lower end, the support member (12) is provided with a portion (12a) embracing the pivoting axis (S).
12. Working tool according to claim 11, characterized in that the embracing portion (12a) is substantially U-shaped.
13. Working tool according to claim 11 or 12, characterized in that on the pivoting axis is located an arresting member (20), which can be engaged in non-rotary manner with the embracing portion (12a) of the support member (12).
14. Working tool according to claim 13, characterized in that the arresting member (20) has projecting edges or teeth (20a), which are engageable with a profiling of the support member (12).
15. Working tool according to claim 13 or 14, characterized in that the embracing portion (12a), as desired, can be brought into a locked position fixed to the arresting member (20) or a release position, where the support member (12) is pivotable relative to the arresting member (20).
16. Working tool according to claim 15, characterized in that the embracing portion can be brought into the release position by spreading apart its legs (12b, 12c).
17. Working tool according to claim 16, characterized in that the embracing portion (12a) is held in its locked position by means of a clamping member (21, 22), which holds the legs (12b, 12c) at a predetermined mutual spacing.
18. Working tool according to claim 17, characterized in that the clamping member is a spacer tongue (21) which can be moved along the legs.
19. Working tool according to claim 17, characterized in that the clamping member is a pivot tongue pivotably mounted on one of the legs (12b) and which can engage behind the other leg (12c).

Images