DE2857401B2 - Storage container for fine-grained dental bulk material - Google Patents

Description

The invention relates to a storage container for powdery or flour-like fine-grained dental technology Bulky goods such as plaster of paris, pumice stone, investment materials or similar consisting of a silo that holds the bulk goods, to which a shaker (vibrator) is assigned, the lower end of the silo being closed by hand Has discharge opening, in which one of the discharge opening is assigned by actuating a handle Closing device for the purpose of removing the bulk material at the same time the vibrator is activated will.

One such example from the prospectus »KaVo Electric silo control ”from KaVo Elektrotechnisches Werk GmbH in Leutkirch / Allgäu bulk material storage container that has become must be hung relatively high on the wall so that the Bulky goods emerging from it through the lower discharge opening are conveniently and easily manageable into one The collecting container held underneath can flow. Is now - as in the known case - the button trained operating handle for the discharge opening-closing device on the front of the Attached container, the operator must when holding a collecting container with the put one hand under the discharge opening and with the other hand reach up relatively high, in order to be able to grasp the operating handle, what the necessary attention for the filling of the Containment container significantly diminishes. In addition, such an actuating handle, designed as a button, has a disruptive effect on the front of the storage container the otherwise smooth front surface of the container.

It is therefore the object of the invention to provide a storage container of the type mentioned at the outset, in which these disadvantages do not occur.

The invention, as it is characterized in the claims, now solves this problem in the manner in a storage container of the type mentioned to form the device for opening and closing the discharge opening and for actuating the vibrator so and to arrange that the operating handle can be attached to the reservoir as deep as possible.

The advantages achieved by the invention according to claim 1 are essentially to be seen in the fact that the Operating handle for opening and closing the discharge opening closer to the height of the inlet Bulk material has moved into the collecting container, is easy to operate and no longer disturbs from the Front surface of the container protrudes. In addition, this handle is designed and arranged so that the free Cross-section of the discharge opening of the silo easily adjusted and the vibrator in operation at the same time can be taken.

Further developments of the invention emerge from the subclaims and claims not dealt with above the following explanation of the drawings.

In the drawing, an embodiment of the invention is shown as an example. It shows

Fig.) A storage container in diagrammatic form Representation, with the parts permanently attached to a wall bracket and those with the wall bracket releasably connected parts are shown with dashed lines;

F i g. 2 a storage container detached from the wall bracket, with the one in one as the outer jacket formed support part arranged silo in the upper Half is shown in section and in the lower half in view; and

F i g. 3 shows a section along the line IH-III in FIG. 2.

As shown in FIGS. 1 to 3 can be seen, has the Bulk material storage container receiving a fine-grained dental technical bulk material in the lower area conically tapering silo 1 in the manner of a funnel, which is an electromagnetic or pneumatic operated vibrator 13 is assigned. At its lower end, the silo 1 has a lockable Discharge opening 18, from a hose-like outlet spout 2 made of rubber or another rubber-elastic material is formed, which is a hand-operated Pinch 3 is assigned. The pinch 3 consists of a rigid one Plant 4 and one of these opposite, acting from the outside on the outlet spout 2 and the latter squeezing together under the action of a spring 5 against the system 4 adjacent Vei-closing member 6, which by a handle 7 against the effect jo the spring 5 is movable into the open position As can be seen, the spring 5 is designed as a tension spring the handle 7 after releasing the same returns to the starting position in which the closure member

6 rests against the system 4 by squeezing and closing the outlet spout 2 The handle

7 has the shape of an easily graspable handle bar 8 and does not protrude beyond the lower edge of the supporting part 9, which is designed as an outer jacket, for the silo i . With the pulling of the handle 7, the closure member 6, which is designed as a round cross-section pressure rod, is removed from the system 4 so that the outlet spout 2 can open independently and the bulk material outlet begins Silo 1 fixed to a wall bracket.

With the handle 7 there is a pressure bar which actuates the on and off switch 12 of the vibrator 13 14 made of flat steel in operative connection, the switch on when pulling the handle 7 and when Letting go of the handle causes the shaker 13 to be switched off. The on / off switch 12 is useful designed as an actuating role of a microswitch to which a pivotably mounted safety edge is assigned

This prevents the bulk material from being compressed by the action of the vibrator 13, especially if there is too little outflow in front of the constriction to the discharge opening, which would impair a uniform outflow of bulk material Actuation of the on and off switch 12 in the sense of switching on the vibrator 13 with regard to the movement of the closure member 6 into the open position takes place delayed - And off switch 12 overlapping extension 14a. This extension 14a is connected to a section 146 of the pressure bracket 14, which also extends in the direction of movement, via an inclined section 14c inclined at an obtuse angle to the extension 14a or to the section 146 in such a way that the delayed actuation of the on and off switch 12 by the Inclined section 14c and / or the extension 14a takes place. Appropriately, the formation is such that the on and off switch is only actuated by the pressure bracket 14 in the sense of switching on the vibrator 13 when the outlet spout 2 is opened to a quarter.

Since the material of the silo 1 is mostly opaque and therefore the level in the silo - even if the supporting part 9, which is designed as an outer jacket, were transparent - It cannot be seen that the silo 1 has a filling level indicator assigned in the form of an externally visible signal light arranged in the outer jacket, in their supply circuit a pressurized by the bulk material when the Filling level, the circuit closing membrane switch 4 is arranged inside the silo 1

Resilient plug contacts 17 are installed in the circuit leading to the wall bracket 11, the Circuit for generating a low voltage with a transformer arranged on the wall bracket 11 connected is.

For this purpose 2 sheets of drawings

Claims (6)

Patent claims: 1. Storage container for powder or flour-like fine-grain dental bulk goods such as plaster of paris, Pumice stone, investment material or similar, consisting of a silo receiving the bulk material, to which a shaker (vibrator) is assigned, the silo on its lower end has a discharge opening that can be closed by hand, in which by actuation a handle of a closing device assigned to the discharge opening for the purpose of Removal of the bulk material, the vibrator is activated at the same time, characterized in that the handle (7) as a non-'5 over the lower edge of a silo support part (9) designed as an outer jacket protruding grip strip is formed and both with a Pinch seal (3) of a hose type arranged below the discharge opening (18) of the silo (1) with outlet nozzle (2) made of rubber or another rubber-elastic material as well as with an inlet and off switch (12) of the vibrator (13) is in operative connection 2. Storage container according to claim 1, characterized in that the pinch seal (3) from a rigid system (4) and one opposite this, from the outside onto the outlet nozzle (2) acting and the latter squeezing under the action of a spring (5) against the system J " (4) adjoining closure member (6), which by the handle (7) against the action of the The spring (10) can be moved into the open position 3. Storage container according to claim 2, characterized in that the handle (7) is a On and off switch (12) of the vibrator (13) actuating pressure bracket (14) in operative connection stands 4. Storage container according to claim 3, characterized in that the back with the handle (9) and movable pressure bracket (14) is arranged or designed in such a way that the actuation of the and switch (12) in the sense of switching on the vibrator (13) with regard to the movement of the Closure member (6) takes place delayed in the Offenstel'ung 5. Storage container according to claim 4, characterized in that the pressure bracket (14) has an extending in its direction of movement, the transverse to said direction of movement reciprocating on and off switch (12) overlapping extension (t4a) with a also in the direction of movement extending section (14tydes pressure bracket (14) via an inclined section (i4c) inclined at an obtuse angle to the extension (14a ^ or to the section [Hb) in such a way that the delayed actuation of the on and off switch ( 12) through the inclined section (Hc) and / or the extension (Ha) success ⁴ . 6. Storage container according to one of claims 1 to 5, characterized in that the silo (1) has a Level indicator in the form of an externally visible signal light (15) is assigned, in their supply circuit a pressurized by the bulk material, when the Level closing the circuit membrane switch (16) is arranged inside the silo (1).