RU207355U1 - DEVICE FOR AUTOMATIC RETRACTING AND EXITING OF THE MOVING PART OF THE GUIDE FOR THE RETRACTABLE ELEMENT OF FURNITURE - Google Patents

Abstract

The claimed utility model relates to the design of a guide device for movable parts of furniture and is designed to bring the movable element to the open position and securely retraction and fixation in the closed position. by expanding functionality. The goal is achieved as follows: a device for automatic retraction and ejection of the movable part of the guide for a sliding piece of furniture, including a body with a guide rail, a fixed slider with a protrusion, pushing springs, while the fixed slider with a protrusion consists of two parts - a rectilinearly moving part and a rotary part, the guide rail is made with a groove for the protrusion of the fixed slider, the fixed slider with the protrusion is connected to the push-out springs, characterized in that, in addition to holds retraction springs connected to the fixed slider, and also additionally contains a shock absorber with a rod and piston connected to the fixed slider, and the body additionally contains a movable lock of the protrusion of the rotary part of the fixed slider. as part of a furniture runner for furniture drawers. Manufactured in factories and factories for the production of accessories.

Description

The claimed utility model relates to the design of a guide device for movable furniture parts and is designed to bring the movable element to the open position and securely retraction and fixation in the closed position.

Known drive of movable furniture parts (patent CN 203524176, published 04/09/2014), containing a pushing element, a housing, a fixing element for the pushing element and a latch element connected to the pushing element.

The disadvantage of the known design is the lack of damping elements, as a result of which there is a high wear rate of the constituent elements of the structure, leading to low reliability.

The closest known device is a device for automatically pushing out and fixing the movable part of the guide for a sliding piece of furniture (patent RU 203115, published 03/22/2021), including a housing, an activator, an energy accumulator and a slider, consisting of a part of linear movement and a movable part included in engagement with a latch. The surface of the body in contact with the part of the linear movement of the slider is shaped, the movable part of the slider is divided into two 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 , 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.

However, the known device does not provide for the retraction of the movable part of the guide, the device for fixing the slide is not wear-resistant.

The purpose of the claimed utility model is to eliminate the identified drawback to achieve the following technical result: increased wear resistance and associated structural reliability, as well as improved performance by expanding functionality.

This goal is achieved as follows: a device for automatic retraction and ejection of the movable part of the guide for a sliding piece of furniture, including a body with a guide rail, a fixed slider with a protrusion, pushing springs, while the fixed slider with a protrusion consists of two parts - a rectilinearly moving part and a rotary parts, the guide rail is made with a groove for the protrusion of the fixed slider, the fixed slider with the protrusion is connected to the push-out springs, characterized in that it further comprises retraction springs connected to the fixed slider, and also further comprises a shock absorber with a rod and piston connected to the fixed slider, and the body additionally contains a movable latch of the protrusion of the rotary part of the fixed slider

The device for automatic retraction and ejection of the movable part of the guide for the retractable furniture element, in particular, can be characterized by the fact that the movable latch of the protrusion of the rotary part of the fixed slider is additionally equipped with a spring, and also additionally contains a rod, on top of which the spring is located, while the spring with the rod is located in an additional notch in the case.

FIG. 1 schematically shows a device for automatic retraction and ejection of the movable part of the guide, in the extended state of the retraction springs, FIG. 2 shows a fragment of the housing with the displayed additional slider retainer; FIG. 3 is a reverse section of the side of the housing shown in FIG. 2, FIG. 4 schematically shows the rotary part of the lockable slider, a close-up view; FIG. 5 schematically shows a device for automatic retraction and ejection of the movable part of the guide, in the compressed state of the ejection springs, with the slider fixed, FIG. 6 shows a fragment A, where the numbers indicate:

1. Case;

2. Guide rail;

3. Rectilinearly moving part of the fixed slide;

4. The rotary part of the fixed slide;

5. Protrusion of the fixed slide;

6. Shock absorber;

7. Shock absorber rod;

8. Retracting springs;

9. Ejection springs;

10. Groove;

11. Retainer;

12. Excavation;

13. Spring of the retainer;

14. Stopper spring rod;

The presented device for automatic retraction and ejection of the movable part of the guide for the retractable furniture element is arranged as follows

The device is a body (1) with a guide rail (2), along which the straight part of the fixed slide (3) moves. The rotary part of the fixed slider (4) is provided with a protrusion (5) intended for engaging and sliding inside the groove (10) located on the guide rail. Part of the linear movement of the slider is associated with the rod (7) of the shock absorber (6). In addition, the force from the retraction spring (8) and the ejection spring (9) is transmitted to the part of the linear movement of the slider. The protrusion of the rotary part of the slider can engage with the retainer (11) fixed on the spring (13), which is located over the rod (14). The spring with the rod is located in a recess specially prepared for them (12).

The presented device for automatic retraction and ejection of the movable part of the guide for the pull-out furniture element operates as follows

In the "closed" position (Fig. 5), the latch resists the slider protrusion, the ejection springs are in an extended state due to the action of the movable part of the guide, with a high level of energy storage. To remove the slider from the fixation, it is necessary to apply force in the "closed" direction, that is, to stretch the pushing springs even more (for example, by acting on a furniture facade (not shown in the figure)). The slider will move due to the impact (up to the stop against the groove wall). When the impact from the outside ceases, the expelling spring will tend to move to the state with minimum energy. The slider, moving due to the compression force of the pushing spring, passes the point of the lock, with some force acting on it, due to which the lock spring is compressed, and the slider continues to move unhindered further along the groove, until it reaches the groove wall. Finding the device in the "open" position is schematically shown in FIG. 1.

The use in the design of the device for the automatic retraction and ejection of the movable part of the guide for the retractable furniture element, the spring-loaded retainer ensures its wear resistance (and therefore reliability, according to GOST 27.002-2015). Durability is achieved due to the presence of a retainer spring, which makes it possible to compensate for the loads arising from the collision with the slider protrusion; less actuation (less deformation) of the lock and the protrusion of the fixed slider occurs. For example, in the absence of a spring (rigid fastening of the retainer, on the body), the slider protrusion will, due to constant collisions and friction, deform the retainer, as well as deform itself, during operation.

The spring rod of the retainer avoids deformation of the spring by limiting the degree of freedom, which also ensures reliable operation. In addition, if necessary, it is possible to replace individual elements of the movable latch of the protrusion of the rotary part of the fixed slider, for example, in connection with their failure. Thus, the claimed device has increased maintainability and, therefore, reliability.

In addition, in order to expand the functionality, the device additionally contains retraction springs connected to the fixed slide. Thus, the device additionally has the function of retracting the movable part of the guide. In order to prevent collisions, to compensate for the force of the retractor spring, a shock absorber with a rod and a piston is provided. The piston slows down, allowing the device to run smoothly, while the damping ensures the integrity of the elements and increases the durability and reliability of the structure.

Thus, the use of an additional spring-loaded retainer, as well as retraction springs and a shock absorber, in the design of the device for the automatic retraction and ejection of the movable part of the guide, makes it possible to achieve the claimed technical result, namely, to increase the wear resistance and the related reliability of the structure, as well as to improve the operational characteristics due to expanding functionality.

Industrial applicability.

The inventive device for automatic retraction and ejection of the movable part of the guide for the pull-out furniture element is used as part of the furniture guide for the pull-out furniture drawers. Manufactured in factories and factories for the production of accessories.

Claims (4)

1. A device for automatic retraction and ejection of the movable part of the guide for a sliding piece of furniture, including a body with a guide rail, a fixed slider with a protrusion, pushing springs, while the fixed slider with a protrusion consists of two parts - a rectilinearly moving part and a rotary part, a guide rail is made with a groove for the protrusion of the fixed slider, the fixed slider with the protrusion is connected to the push-out springs, characterized in that it additionally contains retraction springs connected to the fixed slider, and also additionally contains a shock absorber with a rod and piston connected to the fixed slider, and the housing additionally contains movable latch of the protrusion of the rotary part of the fixed slider. 2. The device for automatic retraction and ejection of the movable part of the guide for the retractable furniture element according to claim 1, characterized in that the movable latch of the protrusion of the rotary part of the fixed slider is additionally provided with a spring. 3. The device for automatic retraction and ejection of the movable part of the guide for the retractable furniture element according to claim 2, characterized in that it further comprises a rod, on top of which a spring is located. 4. The device for automatic retraction and ejection of the movable part of the guide for the retractable furniture element according to claim 2, characterized in that the spring with the rod is located in an additional recess of the body.

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