RU74051U1 - MECHANISM FOR LOWERING THE SIDE BACK OF A CHILD'S BED (OPTIONS) - Google Patents

Abstract

The proposed mechanism for lowering the side back of a crib relates to the production of children's furniture. The utility model provides ease of use of the bed, due to the possibility of facilitating quick access to the child. Structurally, the said device consists of rods, stops of the upper and lower, and brackets mounted on the outside of the upper crossbar of the movable side back. The movable side backrest is fastened in the upper position due to the reliable fixation of the spring-loaded compression buttons of the brackets having curly, through holes of complex shape in the grooves of the rods. The rods are installed in the stops, which are attached to the side racks of the headboards closest to the movable side back.

Description

The utility model relates to the production of furniture for newborns and young children, namely, to the manufacture of cots, the operation of which is associated with the need to change the position and fix the side rails.

The design of a children's bed is known, in which the side fence is completely reclined (Copyright certificate for the invention No. 37300, published on 06/30/1934). However, to completely tilt the side fence, you need a free space that is almost equal in area to the bed itself, which introduces restrictions and additional inconveniences when installing and operating the bed.

This problem has been solved in a number of models of baby beds, in which the side railing can be moved in a vertical plane with the help of muscular strength and fixed in various positions.

Known locking device (certificate of the Russian Federation No. 24914 for utility model, published 10.09.2002) containing a handle, a spring-loaded rod installed in it, and a roller mounted on the end of the side fence. The groove selected in the leg of the bed serves as a guide, and fixation occurs due to the entry of spring-loaded rods into the holes in the legs of the bed.

Well-known foreign analogues (GB patent No. 2232195 for the invention published 05.12.1990 and GB patent No. 1539234 for the invention published on 01/31/1979) are distinguished by the complexity of the entire structure and the presence of a large number of parts, which complicates the production process, and, of course, increases the cost of the product generally.

There are known designs of beds with a vertical guard moving along the vertical plane and a fixed lock button integrated in it (certificate of the Russian Federation No. 30524 for a utility model published

07/10/2003, certificate of the Russian Federation No. 10065 for a utility model published on June 16, 1999 and a patent of the Russian Federation No. 2240715 for an invention published on August 10, 2004). All of the above designs differ from the proposed utility model in the low ergonomic indicators of the button stocks and the complexity of the buttons themselves, which negatively affects the convenience and unreliability of operation.

The closest adopted for the prototype is the mechanism for lowering the back of the crib (RF patent No. 55552 for utility model, published August 27, 2006), containing a bar, as well as upper and lower stops. Moreover, the mechanism comprises a bracket installed in the movable back of the crib, consisting of a housing, a button and a spring, configured to move along the rod and automatically lock in at least one groove made on the rod, while the bracket body is made in the form of a sleeve with through hole, and the button is made with an 8-shaped through hole with the ability to move in the bracket. The disadvantage of this model is that it does not securely fasten the side back bracket on the rod with the button, the rod does not have sufficient reliability at the groove when bending is loaded and the ergonomic indicators of the bracket button are poor.

The tasks of ensuring reliability and improving the functional and operational qualities of the crib are solved in the proposed utility models of mechanisms for lowering the side back of the crib.

The technical result achieved in the implementation of utility models is expressed in providing ease of use of the bed, due to the possibility of facilitating quick access to the child, increasing the reliability of fastening the side back and fixing it in the upper position.

To achieve the above technical result, the mechanism for lowering the side back of the crib (according to the first embodiment)

contains the upper crossbar, in which intersecting holes are made, in one of which a rod with grooves is placed, and in the other hole is a bracket consisting of a housing with a hole for the rod, in which a spring-loaded button is located along the housing, as well as an upper and lower stops. Moreover, the bar length 225-235 mm or 815-825 mm contains two grooves, one of which is trapezoidal with a side angle of 20 ° with the upper edge spaced 35 mm from the upper section of the bar, has a width of 10-11 mm and a depth of 3.0 -3.5 mm, the second groove with a rounded edge 12 mm wide is made on the upper edge of the rod, the bracket body has the shape of a cylinder or cylinder with a round bottom, the button body has the shape of a cylinder truncated from two opposite sides and an oval hole with a protrusion with the length of the major axis 10-12 mm, the upper part of the oval has diameter rod, and the protrusion is frusto circle corresponding to the size of the trapezoidal groove shape on the bar and the top stop has an aperture shape corresponding to the groove on top of the rod.

In the particular case of the device, the button and the corresponding inner surface of the bracket body are made in the form of cylinders with truncated side surfaces.

In the particular case of the device, stops at two ends of the rod are installed with two holes, one of which has an interference fit for the end of the rod, and the other a fastener that secures the stop to the side rack of the fixed back of the crib.

In the particular case of the device, a flange is made on the bracket body adjacent to the side surface of the upper crossbar of the movable back of the crib.

In the particular case of the device, the rod, stops, bracket and button can be made of metal, wood or polymer.

According to the second embodiment, the mechanism for lowering the side back of the crib contains an upper crossbar in which intersecting holes are made, in one of which a rod with grooves is placed, and in the other hole there is a bracket consisting of a housing with a hole for the rod, in which the ability to move along the body spring-loaded button and top stop. Moreover, the bar length of 155-160 mm is attached by one upper stop to the side of the fixed back of the crib and contains two grooves, one of which is trapezoidal with a side angle of 20 ° with the upper edge, spaced 35 mm from the upper section of the bar, has a width of 10-11 mm and a depth of 3.0-3.5 mm, a second groove with a rounded edge with a width of 12 mm is made on the upper edge of the rod, the bracket body has the shape of a cylinder or cylinder with a round bottom, the button body has the shape of a cylinder truncated from two opposite sides and a hole in the shape of o Ala with a protrusion with a major axis length of 10-12 mm, the upper part of the oval has a diameter of the rod, and the protrusion has the shape of a truncated circle with a size corresponding to the shape of a trapezoidal groove on the rod, and the upper stop has an opening in shape corresponding to the groove on the upper part of the rod.

In the particular case of the device, the button and the corresponding inner surface of the bracket body are made in the form of cylinders with truncated side surfaces.

In the particular case of the device, a flange is made on the bracket body adjacent to the side surface of the upper crossbar of the movable back of the crib.

In the particular case of the device, the rod, stops, bracket and button can be made of metal, wood or polymer.

The achievement of the specified technical result is due to the following reasons.

With any value of the alternate rod length of 225-235 mm or 815-825 mm of each of the above intervals of the rod length, in conjunction with other features of the formula, the same result is achieved, namely, ensuring ease of use of the bed, increasing the reliability of fastening the side back and fixing her up. The reliability of fixing the movable backrest depends on the design of the button and the configuration of the groove on the bar. The height at which the movable back is fixed in the upper (fixed) position depends on the location of the groove. In the given examples of intervals, the same distance from the upper edge of the rod to the upper edge of the groove.

Reliability of fastening the side wall is achieved by attaching the rod in the stops in interference, the design of the bracket and the groove on the upper end of the rod. The upper end of the rod is fixed in the figured hole of the upper stop, which prevents the rotation of the rod and the displacement of the groove.

The length of the bar provides optimal lateral backrest for easy access to the baby.

The implementation of the button in the form of a cylinder with truncations on two opposite sides and an oval hole with a protrusion, the wide part of which has a guide diameter, and the protrusion has the shape of a truncated circle with a size corresponding to the shape of the trapezoidal groove on the rod can significantly increase reliability and durability by increasing strength and reliability of the mechanism of the bracket.

For ease of use, the bracket button has a recess in the form of a part of a sphere with a diameter of 60 mm.

The button and the corresponding inner surface of the bracket body are made in the form of cylinders with truncated side

surfaces, which provides a large contact area between the grooves in the rods and the side surfaces of the buttons

The manufacture of a rod with two support elements at the ends having two holes, in one of which an end of the rod is placed with an interference fit, and in the other a fastening element that attaches an emphasis to the back of the crib allows for more reliable fastening of the rod to the side rack of the back of the crib.

When used in the construction of a rod with a length of 155 - 160 mm, it is more expedient to limit oneself to one upper stop, which will reduce the cost of the entire mechanism.

The essence of the utility model is illustrated by drawings.

In Fig.1 and Fig.6 presents a General view of the mechanisms in the assembly without a side bar. The mechanism for lowering the side back of the crib, made without a lower stop is an option for its execution. Figure 2 presents a General view of the bracket of figure 2 (position A) and its details, the housing of the brackets of figure 2 (position 1) and figure 7, the button of figure 2 (position 2) and the spring of figure 2 (position 3) . Figure 3 presents the upper stop, figure 4 presents the lower stop, the rod is shown in figure 5.

The mechanisms for lowering the lateral movable back of the crib of FIG. 1 or FIG. 6 contain a lateral crossbar with intersecting holes, in one of which a rod is placed, FIG. 5 with two grooves, and in the other, the bracket of FIG. 2, consisting of the body of FIG. 2 position 1 or FIG. 7, buttons of FIG. 2 position 2 and springs of FIG. 2 position 3. In the housing of the brackets of FIG. 2, position 1 or FIG. 7 and buttons of the brackets of FIG. 2 position 2, holes for the rod of FIG. 5 are made. The hole in the bracket button has an oval shape with a protrusion. The wide part of the hole corresponds to the diameter of the rod of FIG. 5, and the narrow part corresponds to the trapezoidal groove on the rod of FIG. 5. From the two ends of the rod with interference, the upper stop of FIG. 3 and the lower stop of FIG. 4 are installed. The stops are fastened with fasteners to the side rack of the fixed backs of the crib.

Devices operate as follows.

In the initial (fixed) position, the brackets 3 (Fig. 1 or Fig. 6) hold the movable back of the crib against downward movement due to the arrangement of the buttons of the brackets 3 in the trapezoidal groove of the bar 2 (Fig. 1 or Fig. 6) (Fig. 1 or 6).

To lower the lateral movable backrest, simultaneously press the buttons of the brackets 3 (Fig. 1 or Fig. 6), counteracting the springs with force, while the buttons are displaced from the recesses of the rods and the side railing begins to lower down the bar 2 (Fig. 1 or Fig. 6) to its length. To return to the upper position, it is necessary to lightly lift the movable back up until the buttons lock into the trapezoidal grooves of the rods.

Thus, the claimed device provides ease of use of the bed, due to the possibility of facilitating quick access to the child, increasing the reliability of fastening the side rails and fixing it in the upper position.

The following are examples, summarized in the table, confirming the possibility of obtaining a technical result of a utility model in each value in the intervals of the rod length. The studies were conducted for a person of average height (170 cm for men and 165 cm for women), average waist level (100 cm for men and 95 cm for women), average arm length (60 cm for men and 55 cm for women) and maximum height backrests 110 cm.

Table Bar length 225 cm 230 cm 235 cm 815 cm 820 cm 825 cm The maximum angle of the person For man > 45 ° > 45 ° > 45 ° > 45 ° > 45 ° > 45 ° with the back up For woman > 25 ° > 25 ° > 25 ° > 25 ° > 25 ° > 25 ° The maximum angle of the person For man <90 ° <90 ° <90 ° <90 ° <90 ° <90 ° when lowering the back by 10 cm For woman 90 ° 90 ° 90 ° 90 ° 90 ° 90 °

The effect consists in lowering the headboard to the waist level or lower, which allows a person to freely tilt the body forward to an angle of 90 degrees from the vertical axis, which is achieved with any of the given rod lengths. The implementation of this site with different lengths of the rod are options for its execution. With an average length of hands and a height of the pallet of the bed 30-40 cm above the floor will allow you to freely reach the child. Thus, the obtained data shown in the table show that the technical result, which is to provide convenience in using the bed, due to the possibility of facilitating quick access to the child, is achieved for each value of the bar length interval.

Claims (9)

1. The mechanism for lowering the side back of the crib contains an upper crossbar in which intersecting holes are made, in one of which a rod with grooves is placed, and in the other hole there is a bracket consisting of a housing with a hole for the rod, in which it is moveable a spring-loaded button along the body, as well as upper and lower stops, characterized in that the rod is 225-235 mm or 815-825 mm long and contains two grooves, one of which is trapezoidal with a side angle of 20 ° top it has an edge spaced 35 mm from the upper cut of the rod, has a width of 10-11 mm and a depth of 3.0-3.5 mm, a second groove with a rounded edge 12 mm wide is made on the upper edge of the rod, the bracket body has the shape of a cylinder or cylinder with a rounded bottom, the button housing has the shape of a cylinder truncated from two opposite sides, and an oval hole with a protrusion with a major axis 10-12 mm long, the upper part of the oval has a rod diameter, and the protrusion has a truncated circle shape with a size corresponding to the shape of the trapezoidal groove on the bar, and The lateral stop has a hole in shape corresponding to a groove on the top of the bar. 2. The mechanism according to claim 1, characterized in that the button and the corresponding inner surface of the bracket body are made in the form of cylinders with truncated side surfaces. 3. The mechanism according to claim 1, characterized in that at the two ends of the rod there are stops with two holes, in one of which the end of the rod is placed with an interference fit, and in the other there is a fastener fixing the stop to the side rack of the fixed back of the crib. 4. The mechanism according to claim 1, characterized in that a flange is made on the bracket body adjacent to the side surface of the upper crossbar of the movable back of the crib. 5. The mechanism according to claim 1, characterized in that the rod, stops, bracket and button can be made of metal, wood or polymer. 6. The mechanism for lowering the side back of the crib contains an upper crossbar in which intersecting holes are made, in one of which a rod with grooves is placed, and in the other hole there is a bracket consisting of a housing with a hole for the rod, in which it is moveable along the body a spring-loaded button and an upper stop, characterized in that the rod is 155-160 mm long, is fastened with one upper stop to the side rack of the fixed back of the bed and contains two grooves, one of which is rape-shaped with a side angle of 20 ° with the upper edge, 35 mm from the upper section of the rod, has a width of 10-11 mm and a depth of 3.0-3.5 mm, a second groove with a rounded edge 12 mm wide is made on the upper edge of the rod , the bracket body has the shape of a cylinder or cylinder with a round bottom, the button body has the shape of a cylinder truncated on two opposite sides, and an oval-shaped hole with a protrusion with a major axis 10-12 mm long, the upper part of the oval has a rod diameter, and a recess has the shape of a truncated circle with a size corresponding to yuschim form a trapezoidal groove on the rod, and the upper stop has an aperture shape corresponding to the groove on top of the rod. 7. The mechanism according to claim 1, characterized in that the button and the corresponding inner surface of the bracket body are made in the form of cylinders with truncated side surfaces. 8. The mechanism according to claim 1, characterized in that a flange is made on the bracket body adjacent to the side surface of the upper crossbar of the movable back of the crib. 9. The mechanism according to claim 1, characterized in that the rod, stops, bracket and button can be made of metal, wood or polymer.