DE1151487B - Brush with removable bristle carrier plate - Google Patents

Description

GERMAN

PATENT OFFICE

INTERNAT. KL. A 46 b

L36134m / 9b

NOTICE DAY: MAY 11, 1960

NOTICE THE REGISTRATION AND ISSUE OF THE EDITORIAL: JULY 18, 1963

The invention relates to a brush with an exchangeable bristle carrier plate in which the bristle carrier plate locked by a bayonet catch to the back of the brush and by spring elements in the Locked position is held secured.

Removable bristle carrier plates are often used when the back of the brush is decorated, Inlays or the like, which would require special care when cleaning the brush and could be damaged by cleaning agents, which are often aggressive in nature.

A brush of the type identified above is known for holding the bristle carrier plate on the holder a extending through the holder and in the direction of its axis against the resistance a spring displaceable bolt is provided with one end in a bayonet slot the bristle carrier plate engages and keeps it pressed against the holder under the action of the spring, whereby the spring force comes into effect via a narrow ring collar at the end of the bolt. The bristle carrier plate lies within an annular bead on the holder, so that it is secured against shifting is. The bristle carrier plate is released by applying pressure to the bolt from above, with it except Engagement with the holder comes and can be moved relative to the bolt until the end of the bolt located in the enlarged part of the bayonet slot.

This locking with the bristle carrier plate has the disadvantage that the collar on the bolt is very small is, so that the holder and bristle carrier plate are held together only inadequately. At the Use of the brush can also accidentally be pressed on the protruding head of the bolt, whereupon the bristle carrier plate can twist and then no longer into the space within the annular bead returns, but rests on this, so that when brushing then the bristle carrier plate opposite the end of the bolt and is released from the lock.

Another brush with a removable bristle carrier plate is on the underside of the brush back a sheet metal disk with two bayonet slots one behind the other is provided, in the two in the corresponding Distance on the bristle carrier plate arranged screws against the resistance of a outwardly curved leaf spring with their heads inserted axially and then shifted in the direction of the slot will. This leaf spring is screwed onto the outside of the sheet metal plate. As with the previous one Brush there is also the risk that brush with removable bristle carrier plate

Applicant:

Light Steel Sectional Constructions Limited, Lancing, Sussex (Great Britain)

Representative: Dr.-Ing. F. Wuesthoff, Dipl.-Ing. G. Pulse and DipL-Chem. Dr. rer. nat. E. Frhr. v. Pechmann, patent attorneys, Munich 9, Schweigerstr. 2

Claimed Priority: Great Britain May 11, 1959 (No. 16 053)

Bernard James Gibbs,

Brookside, Rustington, Sussex (Great Britain) has been named as the inventor

the bristle carrier plate accidentally loosens when the brush is used, because the bristle carrier plate is claimed in the same direction as for loosening the bayonet lock.

The object of the invention is to create a brush with a removable bristle carrier plate in which this is securely held on the back of the brush and there is no risk of accidental loosening.

This object is achieved in that at least one fixedly arranged on the bristle carrier plate, with An undercut section provided approach can be pushed into the bayonet slot on the back of the brush is that the spring elements in the inserted state of the approach between the undercut Section of the neck and the back of the brush come to rest, with one in extension the shoulder provided for the approach engages a rear end of the slot in the insertion direction, and that the back of the brush has a recess at its end remote from the end of the slot has, into which the bristle carrier plate can be pressed against the action of the spring elements, until the shoulder comes free from the end of the slit.

This bayonet lock can only be solved by the fact that the barster carrier plate is through Press on their section opposite the recess in the back of the brush opposite the back of the brush tilts so that the shoulder is at the base

309 647/5

is pivoted relative to the stop until it is outside the slot. Only then can both brush parts are moved against each other. The ones that act on the brush while brushing Forces cannot cause the brush parts to move, as neither the bristles nor a concave trated, localized load can be transmitted, which lead to tilting of the bristle carrier plate could, nor that of the recess in the back of the brush form a uniform U-frame-shaped component. The two curved leaf springs 15 come when the lugs 9 are pushed into the slots 13 at the inclined surfaces 11 undercut sections 10 to the plant.

To connect the back of the brush to the bristle carrier plate, the lugs 9 are in the associated Slits 13 introduced and then moved so that the leaf springs 15 between the undercut Ab

opposite section of the bristle carrier plate 10 cut into the lugs and the metal plate

comes into contact with any finger of the hand during normal gripping of the brush. A coincidental one Loosening of the bristle carrier plate is practically impossible with the brush according to the invention.

Further features of the invention emerge from the following explanation of the invention, which refers to Hand schematic drawings of several exemplary embodiments are carried out. It shows

Fig. 1 in a perspective view and from the underside of the brush back,

FIG. 2 is a perspective view of a bristle carrier plate which can be attached to the back of the brush according to FIG. 1,

Fig. 3 shows a section along the line III-III in Fig. 1, 4 shows the bristle carrier plate according to FIG. 2 in a side view,

Fig. 5 is a perspective view of the uncovered top of the brush back according to Fig. 1,

Fig. 6 in a perspective view and from the unclad top side of the brush back of a another embodiment of the brush and

FIG. 7 shows a perspective illustration of a bristle carrier plate belonging to the brush back according to FIG. 6.

The brush has a bristle carrier plate 1 made of wood or plastic with holes or the like Openings for receiving natural or artificial bristles 2, furthermore a brush back 3 with a flat metal plate 4 and a U-shaped border 5, which extends along the circumference of the Plate 4 extends and is closed by a ferrule 6 provided on the brush root. Of the Brush back 3 is provided with a support or cover plate 7 which, for. B. by welding with a Rod 8 is connected, which extends through the brush handle and on which of the The end of the brush back facing away from the handle is connected by a nut.

The bristle carrier plate 1 has two molded or screwed adhesive on its upper side Od. Like. Approaches 9 associated with it. These approaches 9 are essentially L-shaped in plan and each have an undercut portion 10 with an inclined surface 11. The ends of the lugs 9 are provided with flat end faces or shoulders 12, which are to rest against the ends of the for Receiving the approaches certain, correspondingly L-shaped slots 13 in the metal plate 4 come. At both ends of each slot 13 stops 14 are provided, which are angled to the support plate 7 of the brush back extending parts of the metal plate 4 are formed. Of these attacks the approaches 9 lay with their end faces 12 on. As can be seen most clearly from Fig. 5, are laterally next to the slots 13 two leaf springs 15 are arranged, which are attached to a metal strip 16 * are held at the top of the metal plate 4 by a tongue 17 pushed out of the latter is. Alternatively, the two springs 15

are clamped, so that the braid support plate by the against the inclined surfaces 11 of the lugs 9 pressing leaf springs is pressed firmly against the underside of the metal plate. The shoulders 12 of the approaches 9 butt against the ends of the slots 13.

In order to free the back of the brush from the bristle carrier plate, the one next to the handle of the brush is used End of the bristle carrier plate against one provided in the metal plate 4 in the vicinity of the brush root Depression 18 pressed. The bristle carrier plate performs a tilting movement with respect to the Metal plate so that the shoulders 12 of the lugs 9, which are rear in the direction of insertion, are separated from the slots 13 released. You can now move the bristle carrier plate and lift it off the back of the brush.

In the modified embodiment shown in FIGS. 6 and 7, only one approach 9 a is provided, which cooperates with a matching slot 13 α. A curved leaf spring 15 a is attached to the top of the metal plate 4 α. The end of the slot 13 a is provided with an upwardly angled part 14 a as a stop for the approach 9 a . At the approach 9 a an inclined surface 11 a is provided, which engages when the two parts are joined together on the curved leaf spring 15 a in order to effect a secure anchoring. In order to separate the two parts from one another, the procedure is the same as in the first embodiment described; for this purpose, the metal plate 4 α is provided with a recess 18 a.

The brush could also have more than two approaches to the bristle carrier plate and a corresponding number Have slots on the back of the brush. Spring elements other than leaf springs could also be used will.

Claims (5)

Patent claims: 1. Brush with exchangeable bristle carrier plate, in which the bristle carrier plate through Bayonet lock with the back of the brush ver locked and held secured by spring elements is, characterized in that at least one fixedly arranged on the bristle carrier plate (1), with an undercut section (10) provided approach (9) in this way in the bayonet slot (13) on the back of the brush (3) can be pushed in so that the spring elements (15) are pushed in Condition of the approach between the undercut portion of the approach and the back of the brush come to rest, with a shoulder provided as an extension of the extension (9) (12) acts on one - in the direction of insertion - rear end (stop 14) of the slot (13), and that the brush back (3) at its end facing away from the end (14) of the slot (13) has a recess (18) into which the bristle carrier plate (1) can be pressed in against the action of the spring elements until the shoulder (12) comes free from the end (14) of the slot (13). 2. Brush according to claim 1, characterized in that the extension (9) rests in the pushed-in state at both ends of the slot via stops (14 or 14 a). 3. Brush according to claims 1 and 2, characterized in that the spring elements of are formed parallel to the slot (13) extending leaf springs (15 or 15 a), which are preferably are held in place by the stops (14) at the ends of the slot. 4. Brush according to claims 1 to 3, characterized in that the brush back (3) a metal plate (4) is provided which has the bayonet slot, the stops (14) are formed at the ends of the slot by angled parts of the metal plate. 5. Brush according to claims 1 to 4, characterized in that two parallel Approaches (9) in the bristle carrier plate (1) and on the plate (4) only have a single U-frame shape Leaf spring are provided. Considered publications:
German patent specifications No. 501 463, 431 071,
560; Swiss Patent No. 84 884;
U.S. Patent Nos. 2,193,802, 1,678,950. 1 sheet of drawings