ES2292528T3 - VERTICAL ADJUSTMENT MECHANISM. - Google Patents

Abstract

The vertical adjustment mechanism () comprises a body (2), an unlocking lever (4) placed on said body (2), a locking mechanism (5) located between said body (2) and a supporting piece (3) on which the body (2) is attached and is located on both sides of the rack, opposite to each other. The unlocking lever (4) and the locking mechanism (5) are placed on the body (2) which in turn is attached on the supporting piece (3) to constitute the vertical adjustment mechanism (1). The vertical adjustment mechanism (1) placed on both sides of the rack when the user wants to move the rack upwards or downwards, she actuates the unlocking lever (4) and the locking mechanism by applying force on the locking lever (4) and as the result of this movement, the body (2) and the rack attached to said body (2) moves on the supporting piece (3).

Description

Vertical adjustment mechanism.

The present invention relates to the adjustment vertical lattice of the dishwasher used in dishwasher.

The dishwashers comprise a set wheel-rail coupled to the body, a rail that is move between said wheel-rail assembly, wheels coupled to the rail, which is connected to the upper lattice and a rail cover that serves as a stop to prevent derailment of the upper lattice. When the user wishes to change the height of the lattice, open the rail cover, unhook the lattice of the lane and close said lane cover, then place the other row of wheels provided in the upper lattice, in the rail. This procedure is relatively difficult for the user, especially when the upper lattice is not empty. So just it can be carried out after emptying said lattice.

In German Patent No. DE3025311 it is given to know the system for vertical lattice adjustment when it is full, by means of a mechanism arranged on both sides of said lattice, without requiring the opening of the rail cover. Saying mechanism comprises a support piece coupled to the rods that they constitute the trellis and a body that provides the blocking of said lattice at a desired height while moving said piece of support. The user can raise or lower the trellis using said mechanism.

In European Patent Application No. 0925755, discloses a vertical adjustment mechanism that can be used to raise the material coupled to it gradually. At document number EP 0 033 483 another mechanism of known setting.

The objective of the present invention is provide the height adjustment of the dishwasher trellis inside the compartment of the same.

This objective is achieved thanks to a mechanism vertical adjustment according to independent claim 1. In the subordinate claims are defined embodiments preferred.

The vertical adjustment mechanism made for achieving the objective of the present invention has been illustrated in you draw them attached, in which:

Figure 1 is a perspective view exploded showing the vertical adjustment mechanism from the back

Figure 2 is a perspective view exploded showing the vertical adjustment mechanism from the rear;

Figure 3 is a perspective view that shows the vertical adjustment mechanism and the trellis in position  lower;

Figure 4 is a perspective view that shows the vertical adjustment mechanism and the trellis in position  higher;

Figure 5 is a front view of the body and the locking mechanism and sectional view of the support piece, when the lattice is in the upper position;

Figure 6 is a front view of the body and the locking mechanism and sectional view of the support piece, when the trellis is in the upper position and when apply a force on the release lever;

Figure 7 is a front view of the body and the locking mechanism and sectional view of the support piece, when the lattice is in the lower position;

The elements shown in the drawings are they number separately, according to the following list:

one.

Vertical adjustment mechanism

2.

Body

3.

Support piece

Four.

Release lever

5.

Locking mechanism

6.

Wheel

7.

Sliding guide

8.

Highlight guidance

9.

Channel

10.

Upper locking lace

eleven.

Lattice Fasteners

12, 12a and 12b

Stop, top, maximum as a noun, top as an adverb

13.

Rail

14.

Lace

14 to.

Unlocking Lever Lace

14b

Lock lace

fifteen.

Outgoing slide guide

16.

Groove

17.

Pin opening

18.

Unlock Lever Frame

19, 19a and 19b.

Outgoing

twenty.

Closing bar

twenty-one.

Contact surface

22

Unlock Lever Channel

2. 3.

Pin Outgoing

24.

First pin

25.

Second pin

26.

Angular pin surface

27.

Spring housing

28.

Spring

29.

Support surface

30

Extreme part

31.

Central part

32

Barrier.

The dishwasher contains trellis of lower and upper dishwasher, in which the material is arranged That is going to wash. The distance between the lower trellis and the Higher is determined taking into account certain standards. When the upper lattice is fixed, that is, stationary, several arise problems placing bulky materials like casseroles and Frying pans in the dishwasher. In order to eliminate said problems, the upper lattice is mounted so that its position in the dishwasher and its height can be adjusted and, consequently, materials of easily available different sizes both in the upper trellis and in the lower. One or more vertical adjustment mechanisms are performed (1) preferably located on both sides of the upper lattice, with in order to allow the user to regulate the position of said trellis and fix it at different heights.

The vertical adjustment mechanism (1) comprises a body (2), an unlocking lever (4) arranged in said body (2), a locking mechanism (5) disposed between said body (2) and the release lever (4) and a support piece (3) in which the body is coupled (2). Said vertical adjustment mechanism (1) is arranged on both sides of the lattice and when the user wishes move it up or down, actuate the lever unlocking (4) and the locking mechanism (5) by applying a force on the release lever (4) and, as a result of this movement, the body (2) and the lattice coupled to said body (2) they move in the support piece (3).

On the front surface of the support piece (3) a pair of wheels (6) are arranged and on its rear surface, the sliding guides (7) that facilitate the coupling of the body (2) in one or more guiding projections (8) between said guides of slide (7) and a channel (9) in which the lever unlocking (4) moves between said guiding projections (8). In the upper section of the channel (9) is provided at least one socket of upper lock (10) in which the locking mechanism (5) is fixed and leave it locked. The channel (9) has such a structure, that it narrows after the upper lock socket (10) and it widens towards its end. The layout of the guide sliding (7) and the channel (9) in the support piece (3) are Performs according to the center of gravity of the trellis. Distance between the slide guides (7) arranged symmetrically on both sides of the support piece (3) is equal to the width of the body (2). The forward and backward movement of the lattice by the user is provided by the sliding movement of the wheels (6) arranged in the dishwasher rail.

The body (2) comprises one or more fasteners for the trellis (11) preferably arranged in the parts upper, lower and lateral of said body (2), one or more stops (12a), one or more lanes (13), a socket (14) and one or more projections sliding guide (15). The fasteners for the trellis (11) allow the body (2) to attach to the rods horizontal and / or vertical trellis. These stops (12a) that are arranged in the body (2) are formed so that no escape from the support piece (3) on which the body (2).

The sliding guide highlights (15) arranged on both sides of the body (2) are coupled to the sliding guides (7) on the support piece (3). Also I know allows the movement of the body (2) easily without deviating from its direction of movement, in the support piece (3) arranged in the lane (13) by means of guiding projections (8).

The socket (14) in the body (2) comprises a release lever fit (14a) in which the release lever (4) and a locking socket (14b) in which it has the locking mechanism (5).

Outgoing (19a) are provided in the Inner sides of the release lever lock (14a) for prevent the release lever (4) from getting out of its socket (14a). Said projections (19a) are preferably made in the form of waterfall, in order to minimize the movements of the lever unlock (4) in its socket (14a). In the body (2) they are arranged stops (12a) that prevent the release lever (4) from coming out, in the vertical direction of said body (2), under the socket of release lever (14a). In the center of said lace of Unlocking lever (14a) provides a barrier (32) that delimits the horizontal movement of the release lever (4), and that extends along said unlock lever engagement (14 to).

Some stops (12b) are provided that prevent the locking mechanism (5) is released from the locking socket (14b), on both sides of said locking socket (14b) and in places that correspond to recesses formed on the edges of the mechanism of lock (5) of the lock socket (14b). The said movement locking mechanism (5) is limited by the side wall of the lace (14b). Said locking socket (14b) is provided with one or more grooves (16) that allow simple coupling of the mechanism lock (5).

The release lever (4) comprises a pin opening (17), an unlocking lever frame (18), projections (19b), contact surfaces (21) preferably of a inclined structure, arranged in the lower section of said pin opening (17), an unlocking lever channel (22) for coupling to the barrier (32) arranged in the center of the socket of release lever (14a) and a hitch lever (20). The release lever (4) moves in the direction of the force applied by the user, by means of the hitch lever (20). Overhangs (19b) having the same structure are provided in waterfall than the projections (19a) arranged on the sides interiors of the release lever lock (14a), on the edge of the unlocking lever frame (18), so that said projections (19b) are arranged below said projections (19a).

The locking mechanism (5) comprises a first pin (24), a second pin (25) and a spring (28) arranged between the first and second pins (24, 25). Sayings first and second pin (24 and 25) comprise two parts, called the extreme part (30) and the central part (31). The extreme part (30) It has an inclined surface that facilitates the movement of locking mechanism (5) in the channel (9) arranged in the workpiece support (3); while the central part (31) presents angular surfaces (26) for coupling with surfaces contact (21) of the release lever (4). A spring (28) housed in a spring recess (27) greater than the spring diameter (28) arranged in the central part (31) of the first pin (24), between the first and second pins (24 and 25). In the central part (31) of the second pin (25) a support surface (29), arranged opposite the first lever lock (24), so that said support surface enters the spring recess (27) in the first pin (24). The rebate of spring (27) has a shape and size sufficient to housing said support surface (29). One or more are foreseen pin projections (23) at the bottom edge of the central part (31) of both locking mechanisms (5). Outgoing Sayings (23) they fit in grooves (16) arranged in the locking socket (14b) during assembly.

During assembly of the adjustment mechanism vertical of the trellis (1), the spring (28) is arranged in the recess spring (27) arranged in the central part (31) of the first pin (24). The second pin (25) is arranged in the recess spring (27) so that the support surface (29) enters spring contact (28). In this case, when a force greater than the force of the spring (28) at the end (30)  of the first and second pins (24 and 25), these approach between yes. Said first and second pins (24, 25) approach each other and the spring (28) is compressed in order to position the mechanism of lock (5) in the lock socket (14b) arranged in the body (2). In this position, the distance between the two projections of pin (23) arranged in the lower part of the central part (31) of the first and second pins (24, 25) is minimal and engages the locking mechanism (5) in the locking socket (14b) placing said pin projections (23) in the slots (16) provided in the locking socket (14b). To remove said locking mechanism (5) of the locking socket (14b), the spring (28) is compressed and remove the pin projections (23) from said grooves (16). At moment in which the locking mechanism (5) engages in the socket lock (14b), this is pushed by the spring (28) against the side walls of the locking socket (14b). Then, the release lever (4) is located in the lever engagement of unlocking (14a) arranged in the body (2).

Said release lever (4) is arranged in the barrier (32) extending along the lever engagement of unlocking (14a), so that the projections (19b) on the edge of the unlock lever frame (18) do not overlap projections (19a) arranged on the inner edges of the socket of release lever (14a). In order to place said lever of Unlocking (4) completely in the unlock lever engagement (14a) an upward force is applied on the release lever (4), so that said unlocking lever (4) slides over the barrier (32), pass over the stop (12a) and be received in the socket release lever (14a). In this case, the protrusions (19b) on the release lever (4) are arranged below the projections arranged in the release lever engagement (14a) and the release lever (4) is fully seated in the body (2) by means of two stops (12a) that rest against the lower surface of the unlocking lever frame (18). He movement of the unlocking arm (4) inside its socket (14a) is limited by the stop (12a), the slots (16) arranged below the locking socket (14b) and the surface bottom of the pin opening (17).

Finally, the vertical adjustment mechanism of lattice (1) is completed by attaching the body (2), to which incorporate the unlocking arm (4) and the locking mechanism (5), in the sliding guides (7) arranged in the support piece (3) by means of the sliding guides (15) arranged in both sides.

Said vertical adjustment mechanism (1) is fixed in the lattice by attaching the lattice fasteners (11) arranged  in the body (2) to the horizontal and longitudinal rods of the lattice. Preferably, said mechanism (1) is arranged symmetrically on both sides of the lattice; in this way, the wheels (6) arranged in the support piece (3) are arranged in the lane in the dishwasher and then the trellis is arranged in the dishwasher

The user can raise said trellis by applying a force on the closing bar (20) arranged in the section top of the release lever (4) or directly on said lattice.

When a force is applied directly on the trellis, the body (2) with said trellis coupled thereto, is move up on the support piece (3). During this movement, the channel (9) in the support piece (3) compresses the locking mechanism (5) arranged in the body (2) due to its structure that first narrows and then widens towards above. As a consequence, the first pin (24) is operated separately of the second pin (25) when the channel widens and vice versa. When the trellis reaches its highest level, the channel (9) is widens again and the first and second pins (24 and 25) are they move in the channel in opposite directions, due to the force applied by the spring (28) compressed between said two pins (24, 25). As a result, the locking mechanism (5) sits on the upper locking socket (10) arranged in the channel (9). In In this case, the distance between the first and second pins (24 and 25) is at its maximum level and the lattice remains fixed at this height

While raising the trellis by applying a force on the hitch lever (20) arranged on the side top of the release lever (4), as a result of said force, said release lever (4) moves upwards in the inside of the release lever fitting (14a) and, simultaneously, surfaces also move up contact (21) on the release lever (4), and bring the locking mechanism with each other by means of surfaces angles (26) in the central part (31) of the pin with which contact When said unlocking lever (4) continues to be raised while pressing down after contact the body (2), said body (2) moves up in the inside of the support piece (3). When the lattice reaches the highest level, remains fixed and the locking mechanism (5) engages in the upper locking socket (10) by means of the spring (28) compressed after releasing the force applied to the release lever (4), and that displaces the first and second pin (24 and 25) in opposite directions on the locking socket (14b) (Figure 5).

When the user wishes to lower the lattice, apply a force on the hitch lever (20) arranged  in the upper section of the release lever (4) (in the address A of Figure 6). As a result of the application of said force, said unlocking lever (4) moves towards up on the release lever lock (14a). When the contact surfaces (21) on the lower side of the opening of the pin (17) move up, the spring is compressed (28) between the pins and the first and second pins (24 and 25) they approach each other moving in the horizontal plane (in the directions B and C of Figure 6), by means of the surfaces angles (26) arranged in the central part of the pin (24 or 25) with whom they contact. At the end of this process, the first and the second pin (24 and 25) seated in the locking socket superior (10) when the trellis was at its highest level raised, allow said fitting (10) and body (2) to be move down on the support piece (3).

When the trellis rises or falls, said lattice can be raised / lowered in full by stretching simultaneously of both release levers (4) of the mechanism vertical adjustment (1) arranged on both sides of the lattice, or first a part of said trellis can be raised / lowered stretching from one of the unlock levers (4) and then it can be raised / lowered by pulling on the other release lever  (4).

Although the upper locking lace (10) is located in the support piece (3), in the embodiments which have been previously disclosed, can also be used more than one lock socket (10) in order to allow the lattice stay on more than one level.

Claims (8)

1. Vertical adjustment mechanism used in dishwashers, which is arranged on both sides of the lattice, opposite each other, and comprising a body (2), an unlocking lever (4) disposed on said body (2), a mechanism for lock (5) and a support piece (3) on which said body (2) is coupled, allowing the trellis to move due to the movement of the body (2) in the support piece (3) when a force is applied on the unlocking lever (4) disposed on the body (2) or applied directly on the lattice, characterized in that said unlocking lever (4) fits the locking mechanism (5) when an upward force is applied (A ) unlocking the locking mechanism (5), said unlocking lever (4) operating for both the lifting and lowering of the trellis. 2. Vertical adjustment mechanism according to claim 1, characterized in that the support piece (3) comprises, on its front surface, a pair of wheels (6) and on its rear surface, the sliding guides (7) that facilitate the body coupling (2), one or more guiding projections (8) between said sliding guides (7), a channel (9) in which the unlocking lever (4) and the locking mechanism (5) move , between said guiding projections (8), and at least one upper locking socket (10) in which the locking mechanism (5) is coupled and left locked, and allowing the lattice to move forward and backwards by moving the wheels (6) in the dishwasher rail. 3. Vertical adjustment mechanism (1) according to claims 1 and 2, characterized in that the body (2) disposed in the support piece (3), comprising the lattice fasteners (11) that allow the body (2) a stop (12a) is attached to the horizontal and / or longitudinal rods of the trellis to prevent it from leaving the support piece (3) during its movement in the support piece (3), sliding guide projections (15 ) coupled to the sliding guides (7) in the support piece (3), rails (13) arranged in the guiding projections (8) in the support piece (3), allowing its movement easily, without deviating from the direction of movement, in the support piece (3), and a socket (14) that includes an unlock lever engagement (14a) in which the release lever (4) and a locking engagement (14b) ) in which the locking mechanism (5) is arranged. 4. Vertical adjustment mechanism (1) according to claims 1 to 3, characterized in that the fitting (14) in the body (2) comprises an unlocking lever engagement (14a) comprising projections (19a) to prevent the release lever (4) escape from its socket (14a) and in its center, a barrier (32) that delimits the horizontal movement of the release lever (4), and a locking socket (14b) comprising stops ( 12b) that prevent the locking mechanism (5) from leaving the locking socket (14b) at both ends of the locking socket (14b) and in places corresponding to the recesses formed at the edges of the locking mechanism (5) and the slots (16) that allow simple coupling of the locking mechanism (5). 5. Vertical adjustment mechanism (1) according to claims 1 to 4, characterized in that the unlocking lever (4), comprising a hitch lever (20) on which the force is applied, an unlocking lever frame ( 18) in which the projections (19b) having the same cascading structure are arranged as the projections (19a) arranged on the inner sides of the release lever engagement (14a), a pin opening (17) in which The contact surfaces (21) are arranged in the lower section of the pin opening (17), an unlocking lever channel (22) to engage the barrier (32) that extends along the center of the socket ( 14). 6. Vertical adjustment mechanism (1) according to claims 1 to 5, characterized in that the locking mechanism (5) comprises a first pin (24) comprising an end part (30), a central part (31), in said extreme part (30), an inclined surface that facilitates the movement of the locking mechanism (5) in the channel (9) provided in the support piece (3) and in the central part (31), one or more angular surfaces ( 26), and a spring recess (27), a second pin (25) in whose central part (31), arranged opposite to the first pin (24), a support surface (29) is provided such that enter the spring recess (27) in the first pin (24) and, a spring (28) disposed in the spring recess (27) in the first pin (24), which connects the first and second
do pin (24 and 25) leaning against the support surface (29) in the central part (31) of the second pin (25). 7. Vertical adjustment mechanism (1) according to claim 6, characterized in that the locking mechanism (5) comprises angular pin surfaces (26) with the same shape as the contact surfaces (21) provided in the lower section of the manual lock opening (17). 8. Vertical adjustment mechanism (1) according to the claims 1 to 6, mounted arranging the locking mechanism (5) formed by the spring (28) disposed between the first and the second pin (24, 25) in the locking socket (14b) provided in the body (2), placing the release lever (4) in the socket of release lever (14a) provided on the body (2) and coupling said body (2) with the release lever (4) and the mechanism of lock (5) on the support piece (3); that provides the upward movement of the body (2) in the channel (9) provided in the support piece (3), when the user tries to raise the lattice, applying a force on the hitch lever (20) or on the lattice, and keeps said lattice fixed by coupling the mechanism lock (5) on the upper lock socket (10), and when the user wants to lower the trellis, which performs the upward movement of the release lever (4) in the socket release lever (14a) which in turn causes the locking mechanism (5) leave the upper locking socket (10) and the body (2) to scroll down, in the channel (9) provided in the support piece.