NO328998B1 - Child seat device - Google Patents

Abstract

The present invention relates to a sliding device for a chair leg, in particular a chair leg for a child seat, comprising a plate comprising at least one fastening opening and in which the plate has a smooth underside and an upper side, characterized in that it can be fastened in at least two different longitudinal positions relative to the chair leg. is attached to and that in both positions it has a horizontal extent that is greater than the area it covers on the chair leg. The invention also relates to a safety kit comprising the sliding device. and application of the same.

Description

The present invention relates to a safety device for use in children's chairs to reduce the risk of incorrect use of such children's chairs.

Background for the invention

In recent years, there has been a rapid development and increase in the level of equipment in private homes, particularly when it comes to upgrading and new acquisitions of electronic devices and aids. This development takes place to a large extent in the most used living rooms in a home, such as the living room and the kitchen.

In this connection, it has been observed that parents are increasingly disturbed by external influences, such as their own and other family members' mobile phones, TVs, videos, computers, the internet, cordless phones, video games, etc.

In addition, more families have a more pressured schedule than before, where, for example, both parents work and have to complete several tasks at the same time and/or in a shorter time, such as housework such as cleaning, washing clothes, washing dishes and not least cooking, at the same time as helping children with homework, making appointments, checking e-mail, text messages and answering machines etc. More adults are also increasingly partly in contact with work from home.

This increased activity and the degree of disturbance in the home means that the focus is drawn away from a child sitting in a high chair, such as during meals that are enjoyed in the kitchen or living room, for example. When using a high chair correctly, the parents must always have their full attention on the child, as long as they are sitting in the chair.

In addition, there is also an increase in children's chairs being placed and used in unfavorable environments, such as on soft or thick carpets, possibly on several layers of carpets as well as next to tables with high edges etc. The reason for this can be varied, but can for example is due to meals being moved to the most used living room, such as the living room, where the furnishings are not particularly suitable for the use of high chairs for children, or, for example, that the currently popular solution with a table at "bar counter" height is used as a kitchen table, even if it is not is suitable for use with highchairs.

The disadvantage of the reduced focus and attention on a child in a high chair is of course that the child can make movements that lead to the chair tipping over. User manuals for highchairs clearly state that a child should never be left in a highchair without the supervision of an adult. This applies especially to children who are secured with a seat belt or in some other way in a child seat. A soft surface, for example, will of course give any chair less stability and increases the risk of tipping over. Furthermore, a high table edge will give a child sitting in a high chair a better opportunity to push himself away from the table edge, and even more importantly, the pushing force will be directed more downwards towards the rear legs of the chair, and this leads to an increased possibility of the chair tipping over. because the thrust forces the back legs of the chair down towards the floor surface. If the child's chair is placed on a soft surface, or a surface with high friction, the child will have an even better opportunity to brace the chair firmly against the floor and thereby tilt the chair backwards, instead of the chair sliding backwards as certain chairs in known technology are intended to do.

Known technique

One such chair is the Tripp Trapp® chair from Stokke AS, which has standard gliders as plastic safety devices in each corner on the underside of the chair, so that the chair slides away from the table when the child pushes off a normal dining table top. With normal use according to the instructions for use, safety is ensured and meets all safety regulations, but the problem is that the instructions for use are not always followed and that the products are therefore used in the wrong way. Failure to supervise the child when sitting in the chair is a misuse that can lead to the child overturning the chair.

Purpose of the invention

The purpose of the invention is to provide a device to increase safety in children's chairs, beyond the safety regulations, and to reduce the chance that incorrect use of the chair will cause danger to the child.

Furthermore, the purpose of the invention is to provide such a device that can reduce the danger that can result from incorrect use of the chair, where the chair must be able to be changed back to its original form without making physical permanent changes to the chair. The chair should be able to be returned to its original shape and condition or to an approximately original state, where the device is not prominent on the chair, but can easily be used again with minimal assembly work.

The purpose is to provide an extended rearward support along and past the rear leg parts of the chair and the possibility of adjusting the chair both according to the child in the chair, such as in relation to the age of the child, as well as according to the surface. Furthermore, such extended support should have minimal impact on accessibility behind the chair, so that no one trips in such a support device.

Brief description of the invention

Inventions thus relate to a sliding device according to claim 1, a safety set according to claim 12 and use thereof according to claims 13 and 14. Further advantageous embodiments appear from the dependent claims.

Figures

Figure 1 shows a sliding device according to the invention from two perspectives.

Figure 2 shows the sliding device in Figure 1 mounted in the unfolded position on a child's chair.

Figure 3 shows the sliding device in Figure 2 in a closed position.

Figure 4 shows the removal of existing standard slides on a children's chair seen from the underside and detail thereof. Figure 5 shows the first step in mounting the sliding device in Figures 2 and 3 and details thereof.

Figure 6 shows the second step in mounting the sliding device in the position in Figure 2.

Figure 7 shows the second step in mounting the sliding device in the position in Figure 3.

Figure 8 shows an alternative embodiment of the sliding device.

Figure 9 shows an optional replacement slider in a children's seat seen from the underside and detail thereof.

Figure 10 shows installation of the replacement slider in Figure 9.

Detailed description

In the further description, the following designations will be used which should be understood as follows unless otherwise stated.

The terms "front", "forward", "front" and "forward facing" mean the mainly horizontal direction towards which the face and upper body of the child sitting in the chair are directed during normal use.

Furthermore, the terms "behind", "backwards", "rear" and "rearwards" mean the opposite mainly horizontal direction, i.e. the direction the back of the child sitting in the chair is generally directed during normal use of the chair.

In the following, the invention will be illustrated by exemplary embodiments with reference to the figures, which are not restrictive of the invention.

Figure 1 shows the parts of a sliding device according to the present invention seen from the top and bottom, which comprises an extended slider 1 together with an optional anchoring element 2, such as a nut plug 2, and a fastening element 3, such as a screw.

The extended slider 1 has an underside that includes a sliding surface 11. The sliding surface 11 has a surface that is wider and/or longer in extent than normal knobs on children's chairs, such as in relation to the standard sliders that are supplied as standard on a Tripp Trapp® chair. The extended slider is provided with a front attachment opening 12 and a rear attachment opening 13, such as screw holes, for attaching the extended slider to the underside of the child's chair by means of the attachment element 3. Front and rear attachment openings 12 and 13 are preferably adapted to the attachment element, and are in this version, conical so that corresponding conical screw heads are recessed when fixing and do not come into contact with the floor and affect the sliding properties of the safety device, or create scratches in the floor surface.

On the upper side, the extended slider includes three mainly vertically elevated side edges, i.e. two longitudinal edges 14 and a transverse end edge 15. The edges 14 and 15 will completely or partially enclose and rest against the vertical parts of the child chair's rear leg or rear leg parts, as a kind of shoe.

Figure 2 shows a children's chair 100 where the extended slider 1 is mounted on the rear leg parts 101 in the unfolded state, so that the extended slider extends horizontally backwards along the floor to a greater extent than the leg parts 101.

Figure 3 shows a children's chair 100 in which the extended slider 1 is mounted on the rear leg parts 101 in the folded state. It should be noted that the extended slider not only covers the rear underside of the leg parts 101, but that it also extends beyond the rear floor impression of the leg parts 101 on each side and at the rear, the two longitudinal edges 14 and the transverse end edge 15 being external.

Thereby, in both cases shown in figures 2 and 3, the children's chair has a sliding surface on the rear leg parts 101 of a larger area than the original standard gliders that come with the chair. This means that the chair slides much more easily on certain surfaces, such as on soft carpets, with less force, when it is exposed to horizontal forces. Thus, the chairs shown in figures 2 and 3 will slide earlier and more easily from a table, if the child sitting in the chair pushes by buckling from the table compared to a normal children's chair on a surface where it is advantageous to have a large surface of the glider. In the unfolded version shown in Figure 2, the effect of a more downward pushing force, such as a pushing force against a high table edge, or a strong backward weight shift of the child, will be reduced as the extension of the legs in the backward direction is longer and pushes the tipping point of the chair further backwards. Greater stability is thus provided in this direction to provide increased resistance to tipping backwards. The upwardly extending longitudinal edges 14 give the extended sliding element rigidity against bending in the longitudinal direction and twisting in the transverse direction, so that the extent of the sliding element provides the intended stability effect.

As shown in figures 4-7, the safety device according to the present invention is very easy and quick to assemble and to switch in and out, or to change back to its original form when the needs change.

Figure 4 shows how the existing rear standard slider 21 on the rear leg part 101 of a children's chair is removed, for example with the help of a flat screwdriver 200. It should be noted that it is not necessary to remove the front standard sliders 22, as the load and the need for sliding effect primarily lies on the rear sliders. The rear standard sliders 21 are fixed in holes on the underside of the rear leg part which appears when the standard sliders are removed. The standard sliders can be discarded as they will not fit into the holes after the anchoring element 2 is fitted, such as when a nut plug is driven into the chair as shown in Figure 5.

Figure 5 shows how the anchoring elements 2 are attached, for example by driving nut plugs with a hammer 300, into the front attachment opening 102 of the two holes 102 and 103 on the underside of the rear leg parts, where the previous standard sliders were attached. In this embodiment, it is important that the attachment opening furthest from the end of the leg parts 101 is used for the anchoring elements 2, so that the main sliding element can be used both in the extended and retracted positions. The anchoring elements 2 are preferably self-fastening and/or expanding so that they are anchored very firmly and preferably permanently in the front hole 102 when they are placed in the holes. Figure 6 further shows how the extended slider is mounted in an extended position by passing the fastening element 3, here a screw, through the front fastening opening 12 in the main sliding element and attaching the extended slider via the anchoring element 2 to the rear leg parts, for example with the help of a tool , here, for example, with an Umbraco key 400. The upwardly extending lateral edges 14 prevent the extended slider from rotating and ensure correct positioning in a rearward extension of the rear leg parts 101. Figure 7 shows installation of the extended slider in an admitted position, by the fastening element 3 through the rear fastening opening 13 in the main sliding element and to fasten the element via the anchoring element 2 to the rear leg parts 101. The upward side longitudinal edges 14 and transverse edge 15 will thereby all rest against the vertical parts of the rear leg parts 101 on a discrete, enveloping and in an inconspicuous way, which prevents them from being damaged or hindering the user. The attachment also prevents the extended slider from rotating and ensures correct positioning in a rearward extension of the rear leg parts 101. A very low design of the extended slider also reduces the tripping hazard for people passing behind the chair.

In an alternative embodiment as shown in Figure 8, the fastening opening in the extended slider 20 can be an open slot between the front 22 and the rear fastening opening 23. In this way, it is not necessary to completely remove the fastening elements 3, such as screws, to switch between a unfolded and unfolded position of the extended slider. By raising the fastener, the extended slider can be slid to the desired position and then secured in position by tightening the fastener. However, the slot should not be wider than it only allows the stem of the fastening element, such as the screw stem, to slide in the slot when the fastening element is in a partially raised state. The groove should therefore have the same or smaller width than the diameter of the fastening openings, and preferably have vertical internal walls. For example, conical recesses in the extended slider adapted to the head of the fastening element could provide physical resistance to positional adjustment when the fastening element 3 is positioned all the way in. Such form-fitting depressions around the attachment openings in the extended slider can prevent accidental insertion of the extended slider, which would reduce expected safety.

Figure 9 shows a replacement slider 4. This optional replacement slider 4 is narrower than the extended slider and has, for example, the same outer dimensions as the original standard slider supplied with the child seat.

If the user no longer wishes to have the safety device mounted on the chair, the extended slider can be dismantled and removed and replaced by the optional replacement slider 4 being mounted in the holes under the chair, for example by being snapped in as shown in figure 10. The replacement slider 4 thus has on the upper side a rear fastening element 43, such as a plug, which fits in the original rear hole 103, and a narrower front fastening element 42, such as a narrow plug, which fits into the opening in the anchoring element 2, as the anchoring element is not intended to be removed. The replacement glider helps return the chair to its original shape and provides the same gliding properties as the original standard glider that was removed. It is important that the chair is not without gliders, as missing gliders can cause a safety risk.

Normally, the safety device will be delivered as a package that contains all the necessary parts for a chair, and thus the invention also relates to a set that includes:

- 2 extended sliders,

- 2 fastening elements,

- 2 anchoring elements, and

- possibly 2 replacement sliders,

adapted to a children's chair, especially a Tripp Trapp® chair, where the fastening elements are, for example, screws and the anchoring elements are, for example, nut plugs.

The safety kit can, for example, be supplied separately as a safety kit, or combined with other products, such as selected from one or more of a child harness, a child brace or a raised seat back, as a baby kit.

Claims (14)

1. Sliding device (1) for a chair leg (101), in particular a chair leg for a children's chair (100), comprising a plate comprising at least one fastening opening (13) and in which the plate has a smooth underside (11) and an upper side, characterized in that it can is attached in at least two different longitudinal positions in relation to the chair leg to which it is attached and that in both positions it has a horizontal extent that is greater than the area it covers on the chair leg. 2. Sliding device (1) according to claim 1, in which the sliding device is a horizontally extended slider in relation to an original slider (21) or knob on the chair leg (101). 3. Sliding device (1) according to claim 1 or 2, in which the upper side of the plate comprises upwardly extending edges (14, 15). 4. Sliding device (1) according to any one of claims 1-3, in which the plate comprises two or more fastening openings (12, 13, 22, 23). 5. Sliding device (1) according to claim 4, in which the attachment openings (12,13,22,23) have conical edges that open towards the underside of the plate, preferably in which the attachment openings are conical screw holes. 6. Gliding device (1) according to any one of claims 1-5, comprising an anchoring element (2) for permanent fixing in an existing hole (102) on the underside of the chair leg (101), and optionally associated fastening element (3), preferably in which the anchoring element (2 ) a nut plug and the fastening element is a screw, more preferably in which the fastening element (3) is a screw with a countersunk head. 7. Sliding device (1) according to any one of claims 1-6, in which the fastening openings (22, 23) are connected by an open groove (26), preferably the groove (26) has the same or smaller width than the diameter of the fastening openings, more preferably the groove (26) has vertical walls. 8. Sliding device (1) according to any one of claims 3-7, in which the upwardly extending edges comprise longitudinal edges (14) which partially or completely cover the right and left side edges of the sliding device. 9. Sliding device (1) according to claim 8, in which the upwardly extending edges (15) cover one end of the sliding device, partially or completely, preferably continuous with the left and right side edges (14). 10. Sliding device (1) according to claim 8 or 9, in which at least parts of the right and left upwardly extending edges (14) rest against the vertical parts of the chair leg (101) in an extended position. 11. Sliding device (1) according to any one of claims 1-10, wherein the underside of the sliding device has a lower friction than the underside of the chair leg (101). 12. Safety set for children's chair, characterized in that it comprises two sliding devices (1) according to claims 1-11, two anchoring elements (2) and two fastening elements (3), and possibly two replacement sliders (4) which are narrower than the sliding devices (1), and preferably has the same outer dimensions as an original standard glider (21) which is supplied with the child seat. 13. Use of a sliding device (1) according to any one of claims 1-11 or the safety set according to claim 12, as a safety device on a children's chair (100) to reduce the friction between the chair's rear leg (101) and a surface, preferably a soft surface such as a blanket. 14. Use of a sliding device (1) according to any one of claims 1-11 or the safety set according to claim 12, to move the tipping point for the chair backwards in relation to the chair (100)'s own tipping point.