DE2357574A1 - FLEXIBLE SAFETY TILT DEVICE - Google Patents

Description

Patent attorney. ·

Dipl. Phys. Leo THUL O Q E "7 C 7 /

Stuttgart / .OO IO lh

PACE-M.Scatä 244-52

INTERNATIONAL STANDARD ELECTRIC CORPORATION, New York

Resilient safety tilting device

The invention relates to a yielding safety tilting device for tilting containers of a circulating conveyor.

Circular conveyors are used in modern mail distribution machines used whose container the mail items such as letters, postcards, envelopes, printed matter, parcels or the like convey and which are tipped over at predetermined points to put the loaded goods in a bag or sack with a unload certain destination. The containers are from Tilting devices turned over by an electric Control can be controlled according to their address.

The containers with their respective supports and guides move along the conveyor line at a high speed and the mass of the tipping devices is very large. Hence- a sudden interruption of the Movement of the containers, due to an unforeseen failure of the tilting devices, such a collision of the Container that the carrier and guide parts break and parts of it fly into the environment and also the operators can hurt. The machine can also be damaged and then fall for a long time because of the

10/22/1973

Wr / Wh · · / ·

409822/0851

FACE-M. Scata "244-52 - 2 - -

necessary repairs.

The object of the present invention is a tilting device which avoids the disadvantage shown.

The object is achieved with the means specified in claim 1.

When using the safety tilting device according to the invention, each container is prevented from tipping over is, for example, because the tilting devices are activated on both sides of the container, no obstruction its forward movement because the tilting devices give way. Such a container then releases its load in a special unloading station. There is also the tilting device during the normal tipping process to dampen the impact of the moving container while the yielding reaches its maximum when the container fails on overturning.

Another advantage is that the tilting device can be changed quickly and easily. From this it follows a good utilization of the machine with few dead times. It should be noted that possible errors in the tilting devices do not interrupt the operation of the machine, even if the efficiency of the tilting devices is somewhat reduced.

The invention will now be explained with reference to drawings of an exemplary embodiment explained in more detail. It shows:

Fig. 1 a yielding safety tilting device for Tilting or turning over containers in circulating conveyors;

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E-M; Scat! 244-52 - 3 -

Figure 2 is a perspective view of a container the circulating conveyor and. '.-' ■ -

Pig. 3 ßine section through the container according to Pig * Z ₃ where the container is at the beginning of a folding movement to unload this load. -

Jn Fig.l shows how a ball bearing 1, kind of a movable lever '2 is attached. The lever 2 is rotatable mounted on pin 3 - which is in the axis of rotation of lever 2 aligned and in lateral approaches of a TF-shaped Carrier 4 are arranged /;

The lever 2 is raised, when an electromagnet 9 is switched on and thereby moves a core connected to the lever. The electromagnet 9 can be of any type from a rest position to one designated by 20: working position indicated by dashed lines. The connection between the core 8 and the lever 2 is established by an S-articulated connection between each core B and its one! end in; two in the middle of the Heibai 2. turn on Ssen k: ann .. Her core 8 and the ifie housing, of the l neten -9 siiiü movable by pin 12, on -a bearing: be-Testigt-j te-an !.; the "Erager 4 is mounted rotatable Uiese ^ V-erl3indung is .dem electromagnet 9 dureli a Belenkverbindung -10 -allows that it vgestati / ₃ et dafoe the axis of Elek: tromagnefeen see: the JS ± ellung.des Lever 2 .adjusts. A feather. i-3, outer one end: at the Hefoel 2 and the other coarse end - at the. the entire Jfechanxsmua -supporting ^ carrier 4 is hefest igt .j pulls the lever , 2 in, the Buhest position _3, which is represented by solid lines in Fig. 1.

The carrier 4 with the mechanism of electromagnetism Facility is resilient and can stand against the

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Force of a tension spring 16 around a pin 6 on a base plate 5, since the pin 6 is mounted in a bore 21 in the carrier 4.

The carrier 4 is in the rest position when it is with one side rests against an adjusting screw 14 which is fastened in a carrier 13 attached to the base plate 5. A The end of the tension spring 16 is on the carrier 4 and the other end attached to a further carrier 15 attached to the base plate 5. The tension spring 16 is through a thread ' pin 17a which has a Peststelleinrichtung 18, adjustable. One function of the tension spring 16 is the impact of the ball bearing 1 on the shaped profile or curve a container (Fig. 2, 3) and the carrier 4 allow slight rotation.

In Figures 2 and 3, a container 22 is shown, the tilted to both sides at an angle of approximately 40 ° because it can be rotated about two rods 26 mounted on a plate "28. The directions of tilt are indicated by arrows D and E in FIG. The container is usually held in the horizontal position by conventional spring elements. The plate 28 is of a Drive device 27 (for example chains, ropes or belts) is moved in the direction of arrow B.

The container 22 has front and rear edges 23 and that are bent so that they describe a circumference and wherein the front edges are longer than the rear edges, while the middle part between the Edges is shaped so that there are two inclined planes, one on the right and the other on the left The container forms, which act as cam tracks 24.

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FACE-M.Scatä 244-52 - 5 -

While the container 22 is driven by the drive device 27 in Is moved forward in the direction of arrow B, it touches with one of its cam tracks 24 one of the ball bearings of the tilting device on the right or left side, depending of which d'er two tilting devices in the working position was brought by switching on the electromagnet.

On its way, the container 22 is caused to tilt to the right or left, in which one of its curved paths a corresponding ball bearing pushes in order to unload the loaded goods at this point.

Should an error in the control of the two opposite Tilting devices occur, so that the one electromagnet 9 is switched on while the other lever 2 is still in the working position, then touches the forward moving Container 22 with its two curved tracks 24 both Ball bearing 1 of the lever 2 at the same time without the Ball bearings roll off the cam tracks. During such an error, when two tilting devices are at the same time Time for a container are actuated, avoids the present Invention of blocking the container and thus the machine. This is achieved in that the right and left yielding tilting devices on the pin 6 can. twist. by such an amount that the corresponding. Ball bearing 1 does not come into engagement with the curve paths of the container. The tilting devices are according to the sliding by the container, rotated by the tension springs back into their rest position. Stopping or even Destruction of the machine is thereby avoided and the goods in the containers reaches one at the end of the circulating conveyor Collection container without incorrect unloading.

4 claims

2 sheets of drawings ./.

409822/0851

Claims (4)

FACE-M. Scata "244-52 - 6 - ^: Expectations { 1, J yielding safety tilting device for tilting containers of a circulating conveyor, characterized in that it contains a carrier (4) with two lateral lugs and between these a movable lever (2) held by pins (3), the lever (2) at its upper end carries a ball bearing (1) and at its lower end has an articulated connection which is centrally connected to a core (8) of an electromagnet (9), the core (8) when the electromagnet (9) is switched on the lever ( 2) moves from a rest position into a working position (20) and the electromagnet (9) is articulated on the carrier (4) by pins (12) in a further carrier. 2. Resilient safety tilting device according to claim 1, characterized in that the carrier (4) is rotatably attached to a pin (6) mounted on a base plate (5) and against the force of a tension spring (16) when the ball bearing (1) is deflected , and that the tension spring (16) brings the support (4) into a rest position limited by an adjustable adjusting screw (14) ₃ , the tension spring (16) being fastened to a support (15) and being adjustable. 3. yielding safety tilting device, according to claim 1 and 2, characterized in that the ball bearing (1). When the lever (2) in a working position (20) on a carriage which the horizontally running container (22) with its sliding edges in a predetermined direction 10/22/1973. - ./. ^ Wr / Wh 409822/08 51 FACE-M.Seafcä. "244-52 ■ - .7 -..-..-. \... pulls _{3 is moved, s} and engages in a sliding edge on the side. : that the lateral sliding edges on a certain length the door of a sloping plane or. -a curved path ■ (2 ¹ I ^ ^ have ₃ whereby, the .Kugella-. -ger Cl) during; -His JtbralltoBwegung on id he, curve bafan (24) the BeKäl-feer t22) tips over and at the end: the Cam track (24) wiiedBr return to its' horizontal position leaves. 4. Yielding Sicherheitskippeinrichtxing according .Anspruch 1 IIIs 3 ₃ characterized in ₃ that: they attach to meet a ': ball ^bearing: - (1) with a Kurvenbähn (24) on the container (22): ₃ when the latter from tilting by an "obstacle or characterized in that the second, opposite _a, same Kippeinricht.ung is actuated simultaneously ₉ is prevented from giving way by a rotation avoids _a so that the ^ container (22) can .fortsetzen its way in the horizontal direction.