EP0315809A1 - Actuating switch, particularly for a room spray dispenser - Google Patents

Abstract

An actuating switch, particularly for a room spray dispenser (21), having an actuating device which is pretensioned by spring force and is in driven connection with a release device which is operated mechanically by means of an operating cam, or the like, and having a force transmission device driven thereby and having a wheel (4) as a force actuation device, which is supported against a spring pretensioning force in a longitudinal guide (19) on a guide slide device (6), can be displaced by means of the release device, hence carrying out an operating movement, and which has a tooth system (7) which engages with a fixedly supported ratchet (8), and which is provided with circumferentially distributed attachment points for supports (9) which can be fitted detachably, of which in each case the support (9) located in the movement axis of the longitudinal guide (19) of the guide slide device (6) is in driven connection with the force transmission device. <IMAGE>

Description

The invention relates to an actuation switch, in particular for a room spray dispenser, with an actuating member that is biased in terms of gearing and is mechanically adjustable by means of an adjusting cam or the like. Such actuation switches are used for numerous applications, for example in a room spray dispenser according to EP application 0 012 573.

The switch specified there is equipped with a pressure lever that actuates the spray pump, which is preloaded even more against a spring preload force by means of a spring-loaded adjusting cam provided with a spring-loaded adjustment cam and is held in the preload position by a locking lever until the locking lever moves back when the adjusting cam moves back Releases the pressure lever and this causes the spray pump to be actuated by means of its spring preload.

The known actuation switch has a complicated structure and has a number of wear points. Switches of this type, especially for such uses, must be expected to still function properly after millions of switching operations. The known switch is therefore unable to meet this requirement because, after shorter or longer use, signs of wear and tear at the numerous points of wear must lead to malfunctions. Five bearing points are required for the storage of three levers actuated twice with each actuation and for their articulated coupling. In addition, the tensioning lever and the locking lever have a total of three contact surfaces exposed to wear due to mechanical abrasion.

The invention is therefore based on the object of creating an actuation switch, in particular for room spray dispensers, which does not have these numerous wear points and has an overall simpler structure with fewer interlocking and moving parts.

An additional object of the invention is to further develop the actuating switch in such a way that it does not cause a stroke of the force transmission element during each triggering process by the adjusting cam, i.e. when used in a room spray dispenser arranged on a door, only with every second or third door movement Room sprayer activated.

These objects are advantageously achieved by a spring mounted against a spring preload in a longitudinal guide "Y" on a guide slide, by a release member Slidable, and thereby performing an adjustment movement and having a toothing with a fixed pawl engaged toothing as an actuating member, which is provided with widely distributed fastening points for releasably attachable studs, each of which is located in the axis of movement "Y" of the longitudinal guide of the guide slide with the transmission element is in gear connection.

There is a further essential feature in the advancement of the wheel by one tooth for each return stroke that takes place under the spring pretensioning force of the adjustment stroke previously carried out by the adjusting cam or the like triggering element, a role serving as the adjusting cam or triggering element that supports its bearing in the guide slide Has.

An extraordinary simplification of the structure and the kinematics compared to the complicated and wear-prone transmission of the prior art results from the fact that the force transmission member is guided coaxially with the movement axis "X" of the longitudinal guide of the guide slide of the toothed wheel, and also in the simplest Way in that the force transmission member of a guide is guided in a housing surrounding the actuating switch in the movement axis "Y".

The two organs or elements of the actuation switch according to the invention can only be displaced in the direction of the movement axis “Y”, namely the guide slide and the force transmission element. Apart from the role that serves as the triggering element, which is also due to a fixed element can only be replaced, there is only another moving part, the toothed wheel, which cooperates with the pawl, whereby the switching by one tooth is caused. This simple construction with two parts performing a linear stroke and a rotating rotating part enables the use of low-friction and therefore almost wear-free materials, in particular plastics, for all moving parts.

Because of the linear uniaxial arrangement of the guide slide and the power transmission element, the actuation is carried out in the simplest manner by a lifting movement from its basic position through each stud of the wheel carrying out an adjustment movement that enters the movement axis “Y”. This is made possible in an advantageous manner in that cleats are circumferentially distributed on both sides of the wheel and the force transmission element is provided with a fork-like pressure piece which encompasses the wheel on both sides and which can be driven by the cleats in the stroke direction of the movement axis “Y”. The attachment points for the studs in the wheel are preferably selected as a bore into which the studs are press-fitted. The number of teeth and fastening points for the positions is even and the same size.

Depending on the number of studs and the gaps between them on the bike, shorter or longer empty trips between the individual actuation trips can be activated. This can be used for example when used on a room spray dispenser be selected so that the sprayer is only triggered every second or third door opening.

Further features and special features are described on the basis of the exemplary embodiments of the actuation switch shown in the drawing and their use in a room spray dispenser and are explained in more detail below.

• Fig. 1 bis 4 je einen Querschnitt durch einen Betätigungs­schalter nach der Erfindung,
• Fig. 5 und 6 je einen Querschnitt A-B gem. Fig. 2 und 3,
• Fig. 7 eine Vorderansicht eines an einer Türöffnung angeordneten Raumsprayspenders,
• Fig. 8 einen Querschnitt C-D gem. Fig. 7,
• Fig. 9 eine Einzelheit "E" gem. Fig. 5.

Show it

• 1 to 4 each have a cross section through an actuating switch according to the invention,
• 5 and 6 each have a cross section AB acc. 2 and 3,
• 7 is a front view of a room spray dispenser arranged at a door opening,
• Fig. 8 shows a cross section CD acc. Fig. 7
• Fig. 9 shows a detail "E". Fig. 5.

As can be seen from FIGS. 1 to 4, the actuating switch essentially consists of the housing 1, in which the guide slide 6 can be displaced in a longitudinal guide 19 in the movement axis "Y". The roller 12 is mounted on this by means of the axis 13. This serves as a trigger element, for example in cooperation with a door upper edge 20 of a room in which the room spray dispenser 21 is fastened above a door opening 22 (FIGS. 7 and 8). With each door movement, the roller 12 is pushed upwards by a stroke, which triggers the actuation.

In the guide slide 6 mentioned, the wheel 4 provided with teeth 7 is rotatably mounted in a recess 22 by means of the axis 5. The toothing 7 cooperates with the pawl 8, the gem. 2 and 4 is pressed by a spring, not shown, in the direction of the arrow on the toothing 7. As can be seen in Fig. 1, the pawl 8 engages in a tooth 7 of the wheel 4 which lies in the horizontal axis "X". If the guide slide 6 acc. Fig. 2 around the stroke z. B. pressed up by a door edge 20, he travels the path "s" and the fol lowing tooth below the "X" axis comes into engagement with the pawl 8, as shown in FIG. 2. The wheel 4 is equipped on both sides with studs 9. Since the lug 9 standing in the direction of movement "Y" is pushed upward by the stroke movement "s" below the pressure piece 10 of the force transmission member 3, it hits the pressure piece 10 and also pushes it upward, resulting in the actuation stroke "h". In the case of a room spray dispenser 21, a spray burst is triggered.

After moving the door 20 further, the guide slide 6, under the action of the tension springs 15 (FIGS. 5 and 6), which are hooked onto the pins 14 and 16, returns to its starting position, as shown in FIG Wheel 4 is rotated further by one tooth 7 because the next tooth 7 is now rotated into the bearings in the "X" axis. This also rotates the tooth 7 previously located in the "Y" axis of motion, and now there is no stud 9 in the "X" axis, so that no further actuation stroke "h" is caused by the upper door edge 20 during the next trigger stroke can.

Even with the subsequent door movement, no further actuation stroke "h" is effected, but this only occurs again when the wheel 4 is advanced for the third time, in which the position of a stud 9 shown in FIG. 1 is reached again, so that it moves again in the direction the movement axis "Y" lies and can cooperate with the pressure piece 10 of the force transmission element 2.

As can be seen from FIGS. 5 and 6, the construction of the device is extremely simple. The guide slide 6 is guided in a longitudinal guide 19 designed as a shaft in the "Y" movement axis. It is designed like a fork and carries the bearing axis 13 for the roller 14 at the bottom. In the middle part it carries the axis 5 for the toothed wheel 4, which is provided with locking recesses 11 into which a spring-loaded pin 18 engages in order to prevent the wheel 4 from lifting " s "to hold up in its position and to allow the engagement of the pawl 8 in the next tooth.

In the upper area the power transmission element 3, which is displaceably mounted in the "Y" movement axis, can be seen, which is equipped with the fork-shaped pressure piece 10 comprising the wheel 4, on which - FIG. 2 - a stud lying in the "Y" movement direction bumps.

Fig. 9 shows a partial section through the wheel 4 with a bore 17, in which cleats 9 are inserted on both sides with a press fit.

7 and 8, the installation and the function of the actuating device in a room spray dispenser 21 is shown, which means on its rear flange side 25 the screws 26 is mounted above a door opening 23 in such a way that its lower edge lies slightly above the door opening 23. The housing 1 of the actuating device is fastened with its flange surfaces 2 by means of screw connections 24 (not shown in more detail) in the lower region of the room spray dispenser 21 in such a way that its lower housing edge is approximately flat with the lower housing edge of the room spray dispenser. The roller 12 protrudes downward by an amount that is greater than the stroke "s".

Above the power actuator 3 and resting thereon, the room spray container 27, which is under gas pressure, is inserted into the housing of the room spray dispenser 21, the spray head 28 being held in an appropriately dimensioned enclosure which can be seen in the drawing, so that the spray nozzle 29 is exposed and into a nozzle funnel 30 is directed, which points in the spatial direction.

If the door is now opened - as shown in Fig. 8 - it presses the roller by the stroke "s" and with it the slide 6 upwards. If there is a pair of studs 9 below the pressure piece 10, this is pressed upwards with the force actuating element 3 and with it also the container 27 which contains the room spray. By pressing the container 27, the spray head 28 is pressed relatively downward, so that a spray burst from the nozzle 29 takes place in the spatial direction.

Depending on the number of studs 9 with which the toothed wheel 4 is fitted, the device can be selected so that the spray nozzle is actuated with each or every second, third etc. door stroke.

Reference symbol list

• 1 housing
• 2 flange surfaces
• 3 power actuator
• 4 wheel
• 5 axis
• 6 guide slides
• 7 gearing
• 8 pawl
• 9. Studs
• 10 pressure piece
• 11 notches
• 12 roll
• 13 bearings of 12
• 14 pin
• 15 spring
• 16 pen
• 17 hole
• 18 pen, spring-loaded
• 19 longitudinal guidance
• 20 top edge of door
• 21 room spray dispensers
• 22 recess
• 23 door opening
• 24 screw connections
• 25 flange side
• 26 screws
• 27 room spray containers
• 28 spray head
• 29 spray nozzle
• 30 nozzle funnels

Claims (12)

1. Actuating switch, in particular for a room spray dispenser, with a spring-biased actuating member that is connected mechanically by means of an adjusting cam or the like
by means of a wheel (4) which is mounted on a guide slide (6) against a spring prestressing force in a longitudinal guide "Y" and can be displaced by the release member and thereby executes an adjustment movement and has a toothing (7) which engages with a fixedly mounted pawl (8) ) as a power actuator, which is provided with circumferentially distributed fastening points (16) for releasably attachable studs (9), each of which the stud (9) located in the axis of movement of the longitudinal guide "Y" of the guide slide (6) with the power transmission member (3) in gear connection stands. 2. Actuator switch according to claim 1, characterized by advancing the wheel (4) by one tooth in each case under the spring biasing return stroke of the adjusting stroke done by the adjusting cam or the like. 3. actuation switch according to claim 1, characterized in
that a roller (12) is used as the adjusting cam or release member, which has its bearing (13) in the guide slide (6). 4. actuation switch according to claim 1, characterized in
that the force transmission member (3) is guided coaxially with the movement axis "X" of the longitudinal guide of the guide slide (6) of the wheel (4) provided with the toothing (7). 5. actuating switch according to claim 4, characterized in
that the power transmission member (3) of a guide is guided in a housing (1) surrounding the actuating switch in the movement axis "Y". 6. actuating switch according to claims 1 to 3, characterized by a lifting movement of the power transmission member (3) from its basic position by each in the movement axis "Y" cleat (9) of the adjusting movement wheel (5). 7. actuation switch according to one or more of claims 1 to 6, characterized in
that on both sides of the wheel (4) circumferentially distributed the studs (9) and the trained power transmission member (3) is provided with a fork-like, the wheel (4) on both sides encompassing pressure piece (10) which of the studs (9) in the stroke direction of Movement axis "Y" can be driven. 8. actuating switch according to claim 1, characterized in
that the attachment points (16) in the wheel (4) are bores into which the studs (9) are inserted with a press fit. 9. actuating switch according to claim 1, characterized in
that the wheel (4) has an even number of teeth and an equal number of attachment points (16) for studs (9). 10. actuation switch according to at least one of the preceding claims, characterized in that
that it is used in the housing of a room spray dispenser (21). 11. actuating switch according to claim 10, characterized in
that a room spray container (27) rests on its power actuator (3), the spray head (28) of which is held with the spray nozzle (29) in an enclosure of the housing of the room spray dispenser (21), the spray nozzle (29) being exposed and placed in a nozzle funnel (30 ) of the housing of the room spray dispenser (21) is directed. 12. Actuating switch according to claim 10, characterized in
that the room spray dispenser (21) is fixed in the room to be treated above a door opening (23) in such a way that the roller (12) protrudes by an amount into the swivel path of the upper edge of the door (20), which corresponds to the intended stroke "s" of Slider (6) corresponds.

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