ES1069483U - Tilting mechanism for tilting trays (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Turning mechanism for tilting trays from a rest or horizontal position to an angular position and vice versa formed by an actuating lever (1) and a tilting axis (8) characterized in that it has a double safety device formed by: a) a first safety device (1) which acts when the tray passes from a horizontal position to an angular position and which is formed at least by: - a longitudinal slide (10) for its relation to the axis of a crank (7), said slide (10) being defined by a first element (4) fixed and fixed to the actuating lever (3) and by a second element (5) mobile articulated to the first element (4) by the first end (4.1) and with the capacity of movement through its second end (5.2) being limited said movement by an upper stop (4.2) and a lower stop (4.3) established in the first element (4), - an axis of a crank (7) related to a reduction motor with displacement capacity along the slider (10), - a spring (5) tending to maintain the second end (5.2) of the second mobile element (5) of the slide (10) in contact with the lower stop (4.3), - a microswitch (6) which causes the reduction motor to stop in the event that an obstacle intervenes during the descent movement of the tray (2); b) a second safety device (100) which acts when the tray passes from an angular position to a horizontal, expensive position and which is formed by at least: - a plate (9) complementary to the tray (2) intended to be anchored on the tray (2) which has support means (9.1), - a spring (11) interposed between the support means (9.1) of the plate (9) and support means (3.3) located in the resistance arm (3.2) of the drive lever (3), - a strut (10) which is arranged through the support means (9.1, 3.3) and whose arrangement is axial with respect to the spring (11), - adjustable means (12) for retaining the angular opening between the tray (2) and the actuating lever (3), - an axis of a crank (7) that comes from a reduction motor that moves longitudinally along a slide (10). (Machine-translation by Google Translate, not legally binding)

Description

Tray Dump Mechanism tilting

Object of the invention

The present invention relates to a mechanism of tipping for tilting trays and in particular to a double safety device that protects the flip mechanism when the tray tilts from a horizontal position to a angular position and when the tray passes from an angular position to a horizontal position against the interposition of an obstacle that Prevent your movement.

Dump systems for tilting trays they present serious mechanical difficulties due to the obstacle that the tray may suffer in its tilting movements, both the downward movement in which the tray passes from one position horizontal to a lowered angular position, such as movement ascending in which the tray passes from an angular position descended to a horizontal position. These difficulties occur in the presence of an obstacle that intervenes in the radius of tilting of the tray and therefore preventing the realization of such movements.

This obstacle, in most cases causes the tray to break and / or the mechanisms to deteriorate of transmission of the turning mechanism.

Therefore the objective of the invention is the to protect both the tray and the flip mechanism against these obstacles by arranging a device double security that acts both in the downward movement of the tray as in the ascent movement of it.

Description of the invention

The present invention consists of a mechanism of tipping for tilting trays from a rest position or horizontal to an angular position and vice versa formed by a operating lever and a tilting axis characterized because it has a double formed safety device by:

a) a first safety device that acts when the tray moves from a horizontal position to a position angular and that is formed at least by:

- a longitudinal slide for your relationship with the axis of a crank, said slide being defined by a first fixed and integral element to the operating lever and by a second mobile element articulated to the first element for the first extreme and capable of movement through its second end said movement being limited by an upper stop and a lower stop set in the first element,

- an axis of a crank related to a reduction motor with long travel capacity slide,

- a spring that tends to hold the second end of the second sliding element of the slide in contact with the bottom stop,

- a microswitch that causes the shutdown of the reducing motor in the event of an obstacle being interposed during the downward movement of the tray;

b) a second safety device that acts  when the tray passes from an angular position to a position horizontal face and that is formed by at least:

- a complementary tray plate intended to be anchored on the tray that has some means support,

- a spring interposed between the means plate support and support means located in the arm of drive lever resistance,

- a brace that is disposed through the support means and whose arrangement is axial with respect to the spring,

- adjustable means of retaining the angular opening between the tray and the lever drive,

- an axis of a crank that comes from a reducing motor that travels longitudinally along a slide.

By arranging this device for double security, it is possible to protect both the tray and the transmission mechanism responsible for causing the movement of lowering and rising of the tray against possible deterioration caused by the presence of unwanted obstacles in the route of ascent and descent of said tray, as well as facilitating the tilting operation of it.

The configurative details corresponding to dependent claims 2 to 5 are also considered included by reference in this description.

Description of the drawings

This descriptive report is complemented, with a set of drawings, illustrative of the preferred example and never Limitations of the invention.

Figure 1 represents an exploded view of the first safety device for downward movement of the tray.

Figure 2 represents a perspective view of the first safety device for downward movement of the tray.

Figure 3 represents an exploded view of the second safety device for upward movement of the tray.

Figure 4 represents a perspective view of the second safety device for upward movement of the tray.

Preferred Embodiment of the Invention

In view of the foregoing, the The present invention relates to a turning mechanism for tilting trays and in particular to a safety device double that protects the flip mechanism when the tray tilts from a horizontal position to an angular position and vice versa, against the interposition of an obstacle that prevents its movement.

First the first one is described safety device (1) that acts in the downward movement of the tray (2) shown in figures 1 and 2.

Tray drive lever (3) (2) swingarm with respect to an axis (8) presents on its arm power (3.1) a slide (10) formed by two elements complementary (4, 5) intended to accommodate the axis of a crank (7) of a reduction motor.

The first element (4) of the slide (10) is rigidly sympathizes with the power arm (3.1) of the lever of drive (3) by welding for example. This first element (4) of the slide (10) constitutes the lower edge (4.4) of the slide (10).

The second element (5) of the slide has turning capacity and is formed by a piece articulated to the first element (4) of the slide (10) at a first end (4.1) of the second element (5) of the slide (10). The second end (5.2) it is housed between an upper stop (4.2) and a lower stop (4.3) located in the first element (4) of the slide (10).

This second element (5) of the sliding form the upper edge (5.3) of the slide (10).

The first element (4) of the slide (10) It also supports the fixing plate (4.5) of a microswitch (6) and a spring (5) that tends to maintain closed the second element (5) of the slide (10) with the first element (4) of the slide (10).

The crank shaft (7) of the reduction motor, acts between the edges of the slide (10) defined by the first element (4) and the second element (5) that has just been describe.

The operation of the device is described in continuation.

The tray (2) through the shaft (8) of tilt and for its relationship with the resistance arm (3.2) of the operating lever (3) tends to keep constantly in friction the bottom edge (4.4) of the slide (10) with the shaft of the crank (7) by virtue of the tray's own weight (2).

When the gear motor starts its operation, the crank shaft (7), moves longitudinally along the bottom edge (4.4) of the slide (10) causing the angular movement of the tray (2) and consequently its tilting.

If during the tilting process of the tray (2) an obstacle gets in its way, the axis of the crank (7) exerts pressure on the upper edge (5.3) of the slide (10) causing its angular upward movement so which produces the displacement of its second end (5.2) from the lower stop (4.3) formed in the first element (4) of the sliding (10) to the upper stop (4.2) located therein element (4).

       \ newpage
    

This angular displacement of the second element  (5) of the slide (10) causes the switch to operate (6) causing the stop motor to stop until the obstacle

Once described the first device of safety (1) acting on the downward movement of the tray (2), or movement in which the tray (2) passes from one position horizontal to an angular position, the second one is described safety device (100) that acts during the movement of ascent of said tray (2).

In the position recovery movement horizontal, the lever (3) for driving the tray (2) is It is coupled with a turning capacity on the shaft (8) of tilt of the tray (2) bearing the resistance arm (3.2) of the operating lever (3) related to said tray (2) through a spring (11) interposed between the support means (9.1) located on the plate (9) intended to be anchored laterally to the tray (2) and (3.3) located on the arm of resistance (3.2) of the operating lever (3).

Said support means (9.1, 3.3) are related through a tie (10) that crosses them through some holes provided in each of the support means (9.1, 3.3). This tie rod (10) has an axial arrangement with respect to the spring (11).

The ends of the strap (10) have some adjustable means (12), acting on the ends (10.1, 10.2) of said brace (10), for retaining the angular opening between the tray (2) and the operating lever (3) assuming a spring tension (11) capable of compensating the weight of the tray (2) with the corresponding load in its horizontal arrangement.

The plate (9) complementary to the tray (2) It has fixing means (9.2, 9.4) that collaborate with the through hole (9.5) for coupling to the tilt shaft (8) of the tray (2).

Additionally, the complementary plate (9) of the tray (2) also has an axial connection guide (9.3) of the end (3.2.1) of the resistance arm (3.2) of the lever (3) drive.

The operation of the  device in order to facilitate its understanding.

The power arm drive (3.1) of the drive lever (3) through displacement longitudinal axis of a crank (7) that comes from an engine reducer along a slide (10) causes the rise of the tray (2) from an angular position to the position horizontal.

In the event that an obstacle is interposed in the ascent path of the tray (2), this one, gives way to the spring (11) disposed between the operating lever (3) and the tray (3) preventing damage to the tray (2) and the transmission mechanisms since elasticity is provided between the operating lever (3) and the tray (2).

It does not alter the essentiality of this invention variations in materials, shape, size and arrangement of component elements, described in a non-limiting manner, sufficient this one to proceed to its reproduction by an expert.

Claims (5)

1. Turning mechanism for tilting trays from a resting or horizontal position to an angular position and vice versa formed by a drive lever (1) and a tilting axis (8) characterized in that it has a double safety device formed by: a) a first safety device (1) that acts when the tray passes from a horizontal position to a angular position and that is formed at least by: - a longitudinal slide (10) for its relationship with the axis of a crank (7), said slide being (10) defined by a first element (4) fixed and integral to the operating lever (3) and by a second mobile element (5) articulated to the first element (4) by first end (4.1) and with ability to move through its second end (5.2) being limited said movement by an upper stop (4.2) and a stop lower (4.3) established in the first element (4), - a shaft of a crank (7) related to a reduction motor with long travel capacity sliding (10), - a spring (5) that tends to maintain the second end (5.2) of the second mobile element (5) of the slide (10) in contact with the bottom stop (4.3), - a microswitch (6) that causes the shutdown of the reduction motor in the event of an obstacle during the downward movement of the tray (2); b) a second safety device (100) that  acts when the tray passes from an angular position to a horizontal position face and that is formed by at least: - a plate (9) complementary to the tray (2)  intended to be anchored on the tray (2) that has about support media (9.1), - a spring (11) interposed between the means support (9.1) of the plate (9) and support means (3.3) located on the resistance arm (3.2) of the lever (3) of drive, - a strap (10) that is disposed through the  support means (9.1, 3.3) and whose arrangement is axial with respect to the spring (11), - adjustable means (12) for retaining the  angular opening between the tray (2) and the lever (3) of drive, - an axis of a crank (7) that comes from a reducing motor that travels longitudinally along a sliding (10). 2. Turning mechanism for tilting trays according to claim 1 characterized in that the first element (4) of the slide (10) forms a lower edge of the slide (10) on which during the movement of lowering the tray is held in friction the axis of the crank (7) and because the second element (5) of the slide (10) forms an upper edge (5.3) on which the axis of the crank (7) exerts a pressure causing the displacement of the second end (5.2) of the second element (5) from the lower stop (4.3) to the upper stop (4.2) of the first element (4). 3. Turning mechanism for tilting trays according to claim 1 characterized in that the microswitch is located in a fixing plate (4.5) located in the first element (4). 4. Turning mechanism for tilting trays according to claim 1 characterized in that the plate (9) complementary to the tray (2) has fixing means (9.2, 9.4) that collaborate with the through hole (9.5) for coupling the shaft (8) tilt. 5. Turning mechanism for tilting trays according to claim 1 characterized in that the plate (9) complementary to the tray (2) has a guide (9.3) for axial connection of the end (3.2.1) of the resistance arm (3.2) of the drive lever (3).