JPH0335986B2 - - Google Patents

Abstract

1. An atomizer of the type comprising a cowling (1-2) surrounding the push-piece (13) of the atomizer with, in said cowling, a window (8) exposing the bearing surface of the push-piece for allowing driving-in said push-piece with a finger engaged in said window and a window diametrically opposite for the passage of the atomizer liquid jet, the push-piece being of revolution and rotatably mounted inside a housing formed in the fixed cowling surrounding said push-piece, characterized in that the bearing surface (20) of push-piece (13) is substantially perpendicular to the axis of rotation of the push-piece and has an angular development less than 90 degrees and that the window which can expose the push-piece bearing surface has an angular development such that a rotation of push-piece (13) inside cowling (1-2) due to a torque exerted on the portion of the surface of the push-piece which is visible through the window can bring in front of the window (8) either the push-piece bearing surface (20), or only the push-piece cylindrical smooth side surface.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sprayer for lotions, perfumes, sanitary products and the like, the operation of which comprises:
Whether it is propellant gas atomization type or pump atomization type, it is controlled by a push piece. The operation of a sprayer of the type mentioned above is brought about by pressure applied to the push piece, and if the sprayer is of the so-called pump type, possibly by continuous pressure.

To prevent the push piece from being accidentally pushed,
French Patent Application No. 83-07441 of May 4, 1983 discloses a fixed covering housing surrounding at least the presser piece of the atomizer, said covering housing being provided with at least one window, said window being attached thereto. It exposes a surface of the push piece on which pressure must be applied for propulsion of the push piece by the engaged fingers. The aforementioned patent application discloses a finger grip formed as a sliding element guided in a covering housing and adapted to be able to move over a distance equal to the travel of the pushing piece in front of a window of the covering housing. We propose a press piece that includes a hole that provides a.

Although this conventional sprayer embodiment greatly increases the protection against accidental manipulation, the possibility of such accidental manipulation still remains if the sliding element forming the push piece is caught through the window. There is.

The aim of the present invention is to completely eliminate such a risk by making spraying possible only after at least one activation operation; It only happens as a result.

US Patent Nos. 3702608 and 3698604 include:
It has also been proposed to protect the pusher piece by means of a cover housing which is rotatably provided on the top of the container of the liquid to be sprayed, the cover housing being formed with a window, and the cover housing being provided with a window. is a passageway to the pushing piece in one direction;
This also reveals the passageway for the atomized liquid jet. In U.S. Pat. No. 3,702,668, the sheathing housing is made of two cylindrical sheaths, the inner sheathing being fixed to the container and the outer central sheathing being rotatable. and each jacket is formed with diametrically opposed holes that must be aligned to permit spraying. In both of these embodiments, the outer surface of the covering housing is rotated to allow use of the sprayer, and the surface is formed with ridges and other irregularities to avoid accidental rotation. Latch means must be provided to prevent rotation of the outer covering, which complicates implementation of the arrangement. Furthermore, the presence of windows in the outer jacket and the presence of a seal between the outer jacket and the atomizer body are aesthetically detrimental.

The improvement is a sprayer comprising a fixed covering housing surrounding a pushpiece for the spray operation of the sprayer,
At least one operation window is provided in the covering casing to expose a finger hook formed on the pushing piece and allowing a finger to press the pushing piece; and an outward spouting of the spray liquid. In the case where the pushing piece forms a window serving as a passage, the pushing piece is a rotary body whose center of rotation is an axis in the pushing operation direction, and is rotatably provided in the covering casing, and the pushing piece Rotation of the pushing piece due to torque applied to a part of the circumferential surface of the pushing piece visible through the operation window selectively exposes the finger hook portion and the flat circumferential surface of the pushing piece on which the finger cannot be hooked. This is accomplished by forming the finger rest in a limited angular range on the circumferential surface of the pushing piece. According to another feature of the present invention, the push piece is latched to prevent movement in the push operation direction at a position other than the use position of the push piece where the finger hook is exposed to the operation window. . This configuration prevents longitudinal frictional forces from operating the atomizer in the pushing direction.

According to another feature, the pushing piece is arranged in one of two positions, a use position in which the finger rest is exposed to the operation window and a closed position in which the finger rest is hidden from the operation window, by means of a resilient snap device. Rotation is suppressed at least in the closed position.

According to another feature, the covering housing is made of two half housings that fit tightly into each other, thus making access to the container containing the contents easy for refilling or replacing the container. The opening of the sheathing housing for this purpose is provided by a cam action between a bevel that is fixedly connected to the pusher piece and a bevel that is fixedly connected to one half-housing. This feature prevents children from opening the covering casing and therefore prevents the access of the container by children as well as the pushing piece freed from the covering casing, especially if the rotational force to be applied is sufficiently high. access is prevented. According to an embodiment, the rotary push piece includes a pair of interdigitated flange accessible from the window, which flange can be opened laterally into the covering housing by a finger or a tool. of torque.

Other features of the sprayer according to the invention will become clearer from reading the detailed description of the bathroom sprayer in conjunction with the accompanying drawings.

In the figure, 1 indicates a front half-casing, and 2 indicates a rear half-casing. In horizontal section, the central part 3 bulges out in the arc of a circle in its upper part, while the lateral parts 4 and the lower part 5 correspond to the cross-section of a parallelepiped.

The half-casings 1, 2 each have a window 6 in the center below them, which window 6 allows the volume in the glass container 7 housed between the two half-casings 1, 2 to be Further, a second window 8 is formed with an uncut portion above the window 6 of each of the half casings 1 and 2, and a second window 8 is formed above the window 6 of the front half casing 1. Reference numeral 8 serves as a spray window that serves as a passage for spraying liquid to the outside, and window 8 in the rear half housing 2 serves as an operation window for operating a pusher piece 13, which will be described later. Two half-housing 1, 2
are assembled by fitting half-thick male and female edges 9 into each other, the gap 10 remaining after assembly being made as small as possible to avoid separation by leverage. ing.

The container 7 corresponds to the shape of the covering housing consisting of the two half-casings 1, 2 and has a height such that its upper surface 11 is at the level of the upper edge of the window 6. It is. A pressure pump 12 is fixed at the center of the upper surface. If the liquid to be atomized is under pressure in the container, the pressure pump 12 may also be a known pressure valve. In the case of a pump,
The pump can be kept in place by screwing the end of the pump onto the neck with a screw that allows injection into the container 7. The push piece 13 forming the pump head has at its bottom a fitting sleeve for the pump head 14 and a passage which connects to the end of the delivery tube 15 and terminates in a spray nozzle 16 radially directed on the push piece body. It includes a cylindrical body equipped with. A longitudinal groove 17 is formed in front of the spray nozzle, said groove 17 cooperating with a joint 18 on the inner surface of the front housing half 1 so that said joint 18 and said groove 17 coincide. The pushing piece 13 is allowed to descend only when this is done. The joint 18 also engages under the lower edge of the skirt 19 in the other orientation of the push piece 13. A diametrical hole 20 is formed in the pusher piece 13 as a finger rest for engaging the index finger, and the diameter of the pusher piece 13 is such that it tightly engages with the upper part of the covering casing including the window 8. It's the size.

The push piece 13 can be rotated between two main positions by means of a torque applied to its circumferential surface. Its primary use position is shown in FIGS. 3 and 5, and its closed position is shown in FIGS. 2 and 6. In the position of use, the holes 20 are aligned with the windows 8 of the two housing halves 1, 2, the spray nozzle 16 faces the front window 8 of the front housing half 1 and the groove 1
7 faces the joint 18. Therefore, the pusher piece 13 can be pressed down with the index finger engaged in the hole 20, allowing the liquid to be sprayed or jetted. In the closed position (FIG. 6), the hole 20 lies between the two housing halves 1, 2, and the joint 18 engages directly below the skirt 19 of the pusher piece 13. In order to maintain the pushing piece 13 in the two positions, the elastic protrusion 2
1 can be provided on the side of the pump 12, the elastic protrusion 21 being able to engage in two notches 22, 23 around the inner wall of the skirt 19 of the pushing piece 13, The positions correspond to the two main positions.

In order to be able to open the covering housings 1, 2, a cam 24 is formed on the inner surface of the part 3 of the rear housing half 2 at the height of the skirt 19 of the push piece 13. The skirt 19 has a cylindrical half circumference, and the remaining half circumference 2 faces the cam 24 in the rotation range between the use position and the closed position.
The diameter of 5 is getting smaller. In this embodiment, the pusher piece 13 is moved to the open position (5th position) as shown by arrow F.
When rotated from FIG. 1, the skirt 19 exerts a thrust on the cam 24 which disengages the flanges 9 of the housing halves 1, 2 from each other.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an embodiment of the sprayer of the present invention configured as a bathroom sprayer as seen from the front in the spraying position, FIG. 2 is a perspective view corresponding to FIG. 1 in the closed position, and FIG. The figure shows a perspective view of the inner elements of the atomizer;
FIG. 4 is a perspective view from the inside of the housing half, and FIGS. 5 to 7 are cross-sectional views showing the snapping and camming mechanism at various positions of the push piece. 1, 2...Covered housing, 7...Container, 8...Window, 13...
Push piece, 18, 19... Latch, 20... Support surface, 2
1, 22, 23...snap device, 24, 25...slope.

Claims (1)

[Scope of Claims] 1. A sprayer equipped with a fixed covering casing that surrounds a pusher piece for spraying operation of the sprayer, the covering casing having a finger grip portion formed on the pusher piece that can be engaged with a finger. At least one operation window that is exposed and allows the pushing piece to be pushed by a finger, and a window that serves as an outward jetting path for the spray liquid,
The pushing piece is a rotating body whose center of rotation is the axis in the pushing operation direction, and is rotatably provided in the covering casing, and the peripheral surface of the pushing piece visible through any of the windows is The finger rest is pressed so that the finger rest and the flat circumferential surface of the push piece on which the finger cannot be hung are selectively exposed to the operation window by rotation of the push piece due to a torque applied to a portion of the push piece. A sprayer characterized in that a peripheral surface of a piece is formed in a limited angular range. 2. Claims characterized in that the push piece is latched to prevent movement in the push operation direction at a position other than the use position of the push piece where the finger hook is exposed to the operation window. The sprayer according to item 1. 3. The pushing piece has two positions, one in use, in which the finger rest is exposed to the operation window, and the other in a closed position, in which the finger rest is hidden from the operation window, by means of a resilient snap device.
The sprayer according to claim 1 or 2, wherein rotation is suppressed at least in the closed position. 4. The covering casings fit snugly into each other.2
The opening of the covering housing, which provides access to the container containing the contents, has a slope fixedly connected to the push piece and a slope fixedly connected to the one half-housing. The sprayer according to any one of claims 1 to 3, characterized in that the sprayer is provided by a cam action between the sprayer and the sloped surface.