RU203115U1 - DEVICE FOR AUTOMATIC PUSHING OUT AND FIXING OF THE MOVING PART OF THE GUIDE FOR THE RETRACTABLE ELEMENT OF FURNITURE - Google Patents

Abstract

The device for automatically pushing out and fixing the movable part of the guide for a pull-out furniture element refers to the design of a guide closer for a pull-out furniture element, for example, a drawer, and is designed to bring the pull-out element to the open position and return movement, ensuring reliable fixation in the closed position. A device for automatically pushing out and fixing the movable part of the guide for a sliding piece of furniture, including a body, an activator, an energy accumulator and a slider, consisting of a part of rectilinear movement and a movable part that engages with a latch, while the surface of the case is in contact with a part of rectilinear movement of the slider, made in profile, the movable part of the slider is divided into two mating with each other rotary parts, each of which is movably mounted on a part of the linear movement of the slider, while one of the rotary parts is equipped with a limiting protrusion and an activator is placed on it, which engages with a latch provided with a body, and the second rotary part of the movable part of the slider, the latch body and damping elements located at the end of the rectilinear movement part mated with the body are made of damping material. The technical result consists in increasing the wear resistance and, as a consequence, increasing the operational characteristics. 4 c.p. f-ly, 6 dwg

Description

The claimed utility model relates to the design of a guide closer for a pull-out piece of furniture, for example, a drawer, and is designed to bring the pull-out element to the open position and return movement, ensuring reliable fixation in the closed position.

Retractable structures, which use automatic ejection and fixation devices, are characterized by a high level of reliability, ability to withstand significant loads, durability and ease of use.

The prior art discloses an automatic retraction device for a movable piece of furniture, guided by an outlet guide, comprising a casing, an energy accumulator mounted on the casing and adapted to tension when the movable element of a piece of furniture is opened, a tension mechanism in functional connection with an energy accumulator and providing tension of the energy accumulator by means of a slider installed with the ability to move on the casing, while the casing has a sliding rail on which the slider can be mounted, and the casing has a rocker guide into which at least one first guide shelf provided on the slider protrudes , moreover, the casing also has a groove into which a second guiding shelf provided on the slider projects, and when the slider is in the installed position, the sliding rail is located between the first guiding shelf and the second guiding shelf, and on the second at least one clamping protrusion in the direction of the sliding rail is formed on the guide shelf (RF patent No. 2514024 for the invention "Automatic retraction device and outlet guide", filing date 06/17/2010, published 04/27/2014).

Known accelerating device for moving parts of a piece of furniture or household appliance, in particular, drawers or doors, containing a housing, an energy storage device attached to the housing by the first end, at least one grip located on the housing with the ability to move and made with the possibility of preliminary voltage by means of an energy storage device, a deflection device, which is installed on the housing and by means of which the energy storage device is connected to the gripper, while the deflection device is connected to a mechanical locking device, by means of which it is possible to fix the energy storage device during the voltage process in at least one intermediate position between the minimum stressed position and the maximum stressed position, while the gripper is made with the possibility of locking in the first end position, in which the gripper enters the curved end part of the first guide and engages with the carriage, and when When gripping in the first end position, the energy storage device has a maximum voltage (patent No. 2635913 for the invention "Accelerating device for moving parts of a piece of furniture or household appliance", filing date 01.13.2014, publication date of the application 03.03.2017).

There is a known driving system, which includes a guide part and a sliding guide and is designed for a movable connection of a linearly movable sliding element with a body, while a carriage is located between the rails so that the sliding element rail can move relative to the guide, which contains a running surface on the upper and / or the bottom side, while the moving element of the carriage is movably guided along the running surface, the upper side of the guide is located opposite the lower side of the guide and at a distance from it, the guide rail has a recess on the upper and / or lower side in the end segment of the guide rail through which the bearing housing projects , and in the area of the recess, fastening means are provided for installing the bearing (US 2019166998 "Gardance system", priority date 2017.12.07, publication date 2019.06.06).

The closest technical solution to the claimed utility model is a fixation and ejection device, which is part of the hidden drive device of the movable part of the guide for the pull-out furniture element and interacts with the activator fixed on the fixed part of the guide, while the fixation and ejection device includes a housing with guide rails, on which a slider connected with an energy accumulator and a gripping element (bayonet) is installed with the possibility of longitudinal and rotational movement, for which a guide groove is provided in the body (CN No. 110537794 "Drawer slide rail buffer rebounding self-locking structure", priority date 2019.07.01, publication date 2019.12.06).

The disadvantages of the known device are due to the possibility of abrasion and destruction of its contact parts in case of incorrect action by the user on the sliding piece of furniture (drawer), performed not by pressing on the front of the drawer, but, for example, by forced mechanical extension.

This disadvantage leads to a decrease in the performance of the device and a reduction in its service life due to a decrease in wear resistance.

The technical result to be achieved by the claimed utility model consists in increasing the wear resistance and, as a consequence, increasing the operational characteristics.

The specified technical result is achieved by the fact that the device for automatic ejection and fixation of the movable part of the guide for the sliding piece of furniture, including a body, an activator, an energy accumulator and a slider, consisting of a part of rectilinear movement and a movable part engaging with a latch, according to the utility model, the surface of the body contacting with the part of the linear movement of the slider is profiled, the movable part of the slider is divided into two mutually mating rotary parts, each of which is movably mounted on the part of the linear movement of the slider, while one of the rotary parts is equipped with a limiting protrusion and an activator is placed on it. into engagement with a latch provided with a body, and the second rotary part of the movable part of the slider, the latch body and damping elements located at the end of the rectilinear movement part mated with the body are made of damping material.

The utility model proposed for protection is illustrated by drawings, where

in FIG. 1 is a view of a device for automatically ejecting and fixing the movable part of the guide for the withdrawable element from above in the "open" position;

in FIG. 2 is a top view of the device for automatically ejecting and fixing the movable part of the guide for the withdrawable element in the "closed" position;

in FIG. 3 - part of the longitudinal movement of the slider;

in FIG. 4 (a, b) - rotary parts of the movable part of the slide;

in FIG. 5 - a fragment of the housing with a latch on the movable part of the guide.

in FIG. 6 is a view of the device for automatically ejecting and fixing the movable part of the guide for the pull-out element from above in the "open" position from the side of mating with the fixed part of the guide.

The device for fixing and ejecting the movable element of the guide for the furniture element is attached to the fixed part of the guide. The inventive design comprises a box-shaped U-shaped body 1 provided with fixing protrusions 2, which are integral with the body. Near the locking projections 2, there are guide grooves 3. The locking projections 2 engage in mating engagement with the corresponding elements of the guide when they are connected and are located in the end area of the housing from the side of the activator 4.

The body is made predominantly of a polymer material by casting or pressing.

A slider is placed in the body, consisting of a part of the linear movement 5 and a movable part, which, in turn, is divided into mating with each other and movably installed parts: a rotary part 6, which fixes the movable part of the guide in the "closed" position, and a rotary part 7 , with the help of which the slider is fixed in the “closed” position. The rotary part 6 is made of metal. Implementation of the movable part of the slider consisting of two movably mounted parts performing rotational movement helps to reduce friction forces, prevents the destruction of contacting elements when the sliding piece of furniture is exposed to the opposite direction to the "open" position, and, accordingly, provides an increase in wear resistance. The guide grooves serve to guide the rotary part 7 of the slider, which fixes the slider in the closed position.

The surface of the housing 1 at the point of contact with the part of the linear movement of the slider 5 is made profiled, due to which the friction area is reduced and the lubricant is retained in this zone for a longer period, which helps to protect the contact points from damage, reduces wear caused by friction and, accordingly, increases wear resistance products.

At the opposite ends of the rotary part 7, two multidirectional elements are made integral with it: the axis 8 and the profile protrusion 9.

The axis 8 of the rotary part 7 engages in reciprocal interaction with the hole 10, which is made in the part of the rectilinear movement 5. Such a relationship provides a movable connection of the rotary part 7. In addition, in the part of the straight movement 5 there is a cutout 11, inside which it is possible to change the position of the limiting protrusion 12, which is provided with the rotary part 6 of the movable part of the slider, and, accordingly, the ability to move the most rotary part 6. The limiting protrusion 12 is located on the side opposite to the placement of the activator 4.

The profile protrusion 9 of the rotary part 7, passing along the guide grooves 13, engages in reciprocal engagement with the protrusion 14 made in the housing 1.

The movement of the part of the rectilinear movement 5 is carried out along the guide rails 15, in which the grooves (bevels) are made, which serve to enter into them the longitudinal edges of the part of the rectilinear movement 5 if it is installed not along the rails, but on the rails.

The activator 4, installed on the rotary part 6 of the movable part of the slider, during the operation of the device engages with the latch 16, which is made in the form of a socket. The latch is provided with a body 17, fixed to the movable part of the guide by means of a rivet 18. The body 17 of the latch 16 is profiled along the perimeter - with protrusions that allow the latch 16 to be securely held on the counter surface of the movable part of the guide in case of incorrect action on the latch. The latch body is made of damping material and has a recess in the area of mating with the movable part of the guide, thereby preventing the latch from displacing in the direction opposite to the movement plane of the activator 4. The properties of the damping material used to manufacture the latch body provide the possibility of its plastic deformation in case of incorrect action on a pull-out piece of furniture, i.e. without pressing on the movable part of the slider, which allows the device to remain operational for a long time. In addition, due to the possibility of the rotational movement of the rotary parts of the movable part of the slider, the friction area and the acting forces between the mating elements are reduced.

The body also contains an energy accumulator in the form of two elastic elements, which are used as springs 19. The springs are connected through the profile guides 20, on which they are fixed, to a part of the rectilinear movement 5. Such a structural relationship of the elements excludes the presence of contact surfaces between the body and the springs and adjusts the tension of the springs. Profile guides 20 can be made, for example, four-sided.

Part of the linear movement 5 is equipped with damping elements 21 located on one of the ends of the housing in contact with the middle sliding part of the guide. The damping elements, due to the elastic properties of the material, reduce the magnitude of the impact of the shock load on the part of the rectilinear movement of the device and reduce the abrasion of the contact surfaces.

The device works as follows.

In the "closed" position, the energy accumulators 19 are fully compressed, the rotary part 7 of the movable part of the slider abuts against the protrusion 14 located in the housing 1, and the rotary part 6 with the activator 4 are in the latch 16. To bring the sliding piece of furniture from the "closed" position to the "open" position, it is necessary to begin to act on the activator 4, which is installed on the rotary part 6, by applying force on the facade of the sliding furniture element in the direction of the "closed" position. The applied force leads to the release of the latch 16 of the activator 4 and, accordingly, the rotary part 6 and its further action on the mating with it rotary part 7. In this case, the profile protrusion 9, moving from the protrusion 14, comes out of engagement with it and begins to move along the guides grooves 13, driving part of the rectilinear movement 5 of the movable part of the slider. The springs begin to come to rest. The travel of the springs is limited by the travel of a part of the linear movement.

The return movement when closing the drawer is carried out in the reverse order.

The main advantage of the claimed utility model is an increase in the wear resistance of the fixation and retraction device and, as a consequence, an increase in the service life of the guide and the retractable furniture element.

The claimed device is more reliable and has improved performance characteristics.

Claims (5)

1. A device for automatically pushing out and fixing the movable part of the guide for a sliding piece of furniture, including a body, an activator, an energy accumulator and a slider, consisting of a part of rectilinear movement and a movable part that engages with a latch, characterized in that the surface of the body in contact with the part the linear movement of the slider is profiled, the movable part of the slider is divided into two mating rotary parts, each of which is movably mounted on a part of the linear movement of the slider, while one of the rotary parts is equipped with a limiting protrusion and an activator is placed on it, which engages with a latch equipped with a body, and the second rotary part of the movable part of the slider, the body of the latch and damping elements located at the end of the part of the rectilinear movement, mated with the body, are made of damping material. 2. The device according to claim 1, characterized in that polyvinyl chloride is used as the damping material. 3. The device according to claim 1, characterized in that silicone is used as the damping material. 4. The device according to claim 1, characterized in that polyethylene is used as the damping material. 5. The device according to claim 1, characterized in that the energy accumulator is made in the form of a spring.

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