Patent Description:
Child safety seats are indispensable for children to travel. In an existing child safety seat, a supporting leg structure is disposed on the base so as to improve stability and use safety of the child safety seat. When in use, the supporting leg structure is unfolded and touches the ground, and thus can well support the child safety seat to prevent the child safety seat from overturning; and when not in use, the supporting leg structure may be folded on the bottom of the base.

However, a front end of the base of the child safety seat equipped with a supporting leg structure is usually provided with a projection for installing and pivotally connecting the supporting leg structure. When the use of the supporting leg is not needed, the projection may, for example, not only negatively affect the seating experience of a child, but also increase a volume of the child safety seat, thus increasing its transportation cost.

An existing child safety seat with a retractable supporting leg structure may solve the above problem; however, it needs two steps to be folded and retract, i.e., folding the supporting leg structure, and then pushing the supporting leg structure to retract the supporting leg structure, so as to achieve the purpose of complete folding. This operation for folding the supporting leg structure is complicated and has a poor user experience.

There is for instance a known base assembly according to <CIT>, comprising a base, a supporting leg and a sliding element telescopically disposed on the base, the supporting leg is pivotally connected to the sliding element and extending and retracting together with the sliding element.

The objective of the present invention is to provide a base assembly and a child safety seat for a vehicle which are convenient to operate.

To achieve the above objective, the present invention provides a base assembly including: a base; a supporting leg; a sliding element telescopically disposed on the base, the supporting leg being pivotally connected to the sliding element and extends and retracts together with the sliding element; and a traction element is configured to pull the supporting leg and the sliding element to move towards the bas as the supporting leg rotates from an unfolded position to a folded position.

Optionally, the traction element is a flexible element.

Optionally, the flexible element is a steel wire, a cord or a webbing.

Optionally, the base assembly further includes a driving element pivoted with the supporting leg, and the driving element is configured to roll up the traction element so that the supporting leg is pulled to move towards the base.

Optionally, the driving element is disposed on the supporting leg, and the driving element is integrally formed with the supporting leg and formed as a part of the supporting leg; alternatively, the driving element and the supporting leg are independently formed and fixedly connected by a fixing structure.

Optionally, the driving element is located at an upper end of the supporting leg.

Optionally, the driving element is shaped as a boss, and the driving element is provided with an arc-shaped part matched with the traction element; alternatively, the driving element is shaped as a pulley; alternatively, the driving element is shaped as a column.

Optionally, a first end of the traction element is connected with the base, and a second end of the traction element is connected with one of the driving element and the upper end of the supporting leg.

Optionally, an inner top wall of the base is provided with a fixing column, and the first end of the traction element is fixed on the fixing column by a first fastener.

Optionally, the base assembly further includes a stroke enlarging mechanism having a first end connected with the base and a second end connected with the supporting leg through the traction element.

Optionally, the stroke enlarging mechanism is a rhombic telescopic frame.

Optionally, a fixing frame is disposed in the base, and the first end of the stroke enlarging mechanism is connected with the fixing frame through a second fastener.

Optionally, the stroke enlarging mechanism is a pulley mechanism.

Optionally, the pulley mechanism includes a movable pulley disposed on the sliding element; a fixed pulley disposed on the base; and a linkage connecting the movable pulley and the fixed pulley; wherein the first end of the traction element is connected with the movable pulley.

Optionally, a first end of the linkage is fixed on the sliding element, and a second end of the linkage bypasses the movable pulley and the fixed pulley to be fixed on the sliding element.

Optionally, the fixed pulley includes a first fixed pulley and a second fixed pulley which are symmetrically disposed, and the linkage includes a first linkage and a second linkage which are symmetrically disposed. A first end of the first linkage is fixed on the sliding element, and a second end of the first linkage bypasses the movable pulley and the first fixed pulley to be fixed on the sliding element; and a first end of the second linkage is fixed on the sliding element, and a second end of the second linkage bypasses the movable pulley and the second fixed pulley to be fixed on the sliding element.

Optionally, the pulley mechanism includes a movable pulley disposed on the sliding element; a first fixed pulley disposed on the sliding element; a second fixed pulley disposed on the base; and a linkage connecting the first fixed pulley, the movable pulley and the second fixed pulley; wherein the first end of the traction element is connected with the movable pulley.

Optionally, the base is provided with a positioning column, the sliding element is provided with an avoidance groove to avoid the positioning column, the first end of the linkage is fixed on the positioning column, and the second end of the linkage bypasses the first fixed pulley, the movable pulley and the second fixed pulley and is fixed on the sliding element.

Optionally, the sliding element is provided with a sliding groove for the movable pulley to slide.

Optionally, the base assembly further includes a supporting leg indicator linked with the second end of the stroke enlarging mechanism, and the sliding element is provided with an indication window for at least partially exposing the supporting leg indicator.

Optionally, a buffer elastic element is disposed at a connection of the second end of the traction element and the supporting leg.

Optionally, the base assembly further includes a base bracket disposed in the base, and the sliding element comprises a sliding bracket slidably connected to the base bracket, a sliding groove is provided on one of the base bracket and the sliding bracket, and a sliding rod matched with the sliding groove is provided on the other of the base bracket and the sliding bracket.

Optionally, the present disclosure provides a child safety seat for a vehicle. The child safety seat includes a base assembly as described above and a seat disposed on the base assembly.

Optionally, the seat is rotatably disposed on the base and has at least a forward position and a backward position. The child safety seat has a first use mode and a second use mode. In the first use mode, the sliding element extends outside and the supporting leg is unfolded to form a ground-contact support, and in the second use mode, the sliding element retracts and the supporting leg is folded at the bottom of the base.

Optionally, an accommodating groove for accommodating the supporting leg is provided on the bottom of the base, and after the supporting leg is folded at the bottom of the base, a lower surface of the supporting leg does not protrude from a bottom surface of the base.

Various objects, features and advantages of the present invention will become more apparent by considering the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are only exemplary illustrations and are not necessarily drawn to scale. In the drawings, the same reference numbers refer to the same or similar parts, wherein:.

In order to explain the whole concept of the present invention more clearly, the following detailed description will be made by way of example with reference to the attached drawings of the specification.

The present invention provides a child safety seat for a vehicle, which may be installed on a vehicle seat for a baby or a child to seat, and ensures the safety of the passenger.

A first embodiment of the present invention will be described below.

As shown in <FIG>, the child safety seat has a base assembly <NUM> and a seat <NUM>. The base assembly <NUM> has a base <NUM> and a supporting leg <NUM>. The seat <NUM> is rotatably disposed on the base <NUM> and at least has a forward position and a backward position. The forward position may be that the seat <NUM> faces the front of the vehicle, and the backward position may be that the seat <NUM> faces the rear of the vehicle. The forward position may be applied to an older child, for example, and the backward position may be applied to a younger child, for example.

The supporting leg <NUM> is rotatably and telescopically connected to the base <NUM>. When the supporting leg <NUM> is used, the supporting leg <NUM> may extend out of the base <NUM> and pivot to touch the ground (as shown in <FIG> and <FIG>), so that the child safety seat may be prevented from overturning during the impact. When the supporting leg <NUM> are not needed, the supporting leg <NUM> may be rotated and retracted synchronously to the bottom of the base <NUM> (as shown in <FIG> and <FIG>), so that the overall size of the child safety seat may be reduced, and it is convenient to store and use.

Referring to <FIG>, the base assembly further includes a sliding element <NUM> and a traction element <NUM>. The sliding element <NUM> is telescopically disposed on the base <NUM>, and the supporting leg <NUM> is pivotably connected to the sliding element <NUM>, and is extended and retracted with the sliding element <NUM>. The traction element <NUM> is configured to rotate the supporting leg <NUM> from an unfolded position to a folded position, so as to pull the supporting leg <NUM> to move towards the base <NUM>. At this time, the sliding element <NUM> moves towards the base <NUM> together with the supporting leg <NUM>.

The base assembly <NUM> may further include a driving element <NUM> that pivots with the supporting leg <NUM>. When the supporting leg <NUM> is folded, the driving element <NUM> rolls up the traction element <NUM> to pull the supporting leg <NUM> and the sliding element <NUM> to move towards the base <NUM>.

The traction element <NUM> is a flexible element, such as a steel wire, a cord or a webbing, and the present invention is not limited thereto. One end of the traction element <NUM> is connected with the base <NUM>, and the other end of the traction element <NUM> is connected with the supporting leg <NUM>. Optionally, the other end of the traction element <NUM> is fixed to an upper end of the supporting leg <NUM>.

The driving element <NUM> is disposed on the supporting leg <NUM>, for example, the driving element <NUM> is located at the upper end of the supporting leg <NUM>. The driving element <NUM> is formed as an integral structure with the supporting leg <NUM> and may be formed as a part of the supporting leg <NUM>. Optionally, the driving element <NUM> and the supporting leg <NUM> may be formed separately, and may be connected and fixed to each other by a fixing structure.

The driving element <NUM> may be shaped as a boss. In this embodiment, the driving element <NUM> is provided with an arc-shaped part <NUM> (referring to <FIG>) which is matched with the traction element <NUM>. Optionally, the driving element <NUM> may be shaped as a pulley. Optionally, the driving element <NUM> may be shaped as a column.

As the driving element <NUM> pivots with the supporting leg <NUM>, the traction element <NUM> surrounds an outer periphery of the driving element <NUM>, so that the other end of the traction element <NUM> pulls the upper end of the supporting leg <NUM>, thereby moving the supporting leg <NUM> and the sliding element <NUM> towards the base <NUM> together. Optionally, the driving element <NUM> may have other profiles than the arc shape.

As shown in <FIG>, the supporting leg <NUM> includes a first section <NUM> and a second section <NUM>. The first section <NUM> and the second section <NUM> may be formed into a sleeve-like structure, and the second section <NUM> may be disposed inside the first section <NUM>, and may move relative to the first section <NUM>, so as to elongate or shorten the supporting leg <NUM>.

Referring to <FIG>, when the supporting leg <NUM> is pivoted and folded, the second section <NUM> of the supporting leg <NUM> is pushed to retract into the first section <NUM>, and then the supporting leg <NUM> is pushed to the left, so that the supporting leg <NUM> is pivoted clockwise. When the supporting leg <NUM> is pivoted, the traction element <NUM> drives the supporting leg <NUM> and the sliding element <NUM> to move towards the inside of the base <NUM>, so that the supporting leg <NUM> is pivoted and retracted inward simultaneously. Finally, the sliding element <NUM> may be moved to a position at least partially located in the base <NUM>, so that the sliding element <NUM> does not protrude or slightly protrudes from the front of the base <NUM>. This will further shorten the overall size of the child safety seat in the front-rear direction.

Referring to <FIG>, the base <NUM> may have a fixing frame <NUM> and a base bracket <NUM>. The fixing frame <NUM> and the base bracket <NUM> may be used as a carrier. The inner top wall of the base <NUM> is provided with a fixing column <NUM>, and the traction element <NUM> is fixed on the fixing column <NUM> by a first fastener.

The sliding element <NUM> includes a sliding bracket <NUM> slidably connected to the base bracket <NUM> and a housing <NUM> connected to the sliding bracket <NUM>. The housing <NUM> is connected and fixed with the sliding bracket <NUM> by rivets, for example. Referring to <FIG>, one of the base bracket <NUM> and the sliding bracket <NUM> is provided with a sliding groove <NUM>, and the other of the base bracket <NUM> and the sliding bracket <NUM> is provided with a sliding rod <NUM> matched with the sliding groove <NUM>. In this embodiment, the sliding bracket <NUM> is provided with a sliding groove <NUM>, and the base bracket <NUM> is provided with a sliding rod <NUM>; however, positions of the sliding groove <NUM> and the sliding rod <NUM> may be interchangeable. Two sliding rods <NUM> and two sliding grooves <NUM> may be symmetrically disposed. In this embodiment, specifically, the sliding groove <NUM> is provided on the sliding bracket <NUM>, and the sliding rod <NUM> is provided on the base bracket <NUM> and passes through the sliding groove <NUM>. It could be understood that the above structures of the base bracket <NUM>, the sliding bracket <NUM>, the sliding groove <NUM> and the sliding rod <NUM> may be applied to other embodiments.

A protective cover <NUM> is provided in the housing <NUM>. The pivot shaft <NUM> (referring to <FIG> and <FIG>) passes through the sliding bracket <NUM>, the connecting element <NUM> for fixedly connecting the protective cover <NUM> and the supporting leg <NUM>, and the driving element <NUM> so as to realize pivoting. The protective cover <NUM> may pivot together with the supporting leg <NUM> to block a gap generated after the supporting leg <NUM> is folded and prevent from injury.

The first restoring element <NUM> (for example, a torsion spring) may be disposed on or near the driving element <NUM>, and constantly bias the supporting leg <NUM> to the unfolded state. In this way, the first restoring element <NUM> may assist the supporting leg <NUM> to be unfolded. A second restoring element <NUM> (for example, a tension spring) may be provided in the base <NUM>. One end of the second restoring element <NUM> is connected with the sliding bracket <NUM>, and the other end of the second restoring element <NUM> is connected with the base <NUM>. The second restoring element <NUM> automatically extends the supporting leg <NUM> and the sliding element <NUM> to the front of the base assembly <NUM>. The first restoring element <NUM> and the second restoring element <NUM> are optional, but not necessary. The number of the second restoring elements <NUM> may be one, two or more, which is not limited in the present invention. The first restoring element <NUM> may be an elastic restoring element other than a torsion spring. The second restoring element <NUM> may be an elastic restoring element other than a tension spring.

Referring to <FIG>, the base <NUM> further includes an accommodating groove <NUM>. When the supporting leg <NUM> is folded, it may be accommodated in the accommodation groove <NUM>, so that the supporting leg <NUM> in the folded state does not protrude from the bottom surface of the base <NUM>, or slightly protrudes from the bottom surface of the base <NUM>. The base <NUM> may further include a locking element <NUM>. The locking element <NUM> may be in the form of a push button, which is movably disposed on a lower surface of the base <NUM>, and is engaged to lock one end of the supporting leg <NUM> folded in the accommodating groove <NUM>. The locking element <NUM> may prevent the supporting leg <NUM> from being accidentally rotated to the unfolded position.

The child safety seat has a first use mode, in which the sliding element <NUM> extends out and the supporting leg <NUM> is unfolded to form a ground contact support, and a second use mode, in which the sliding element <NUM> is retracted and the supporting leg <NUM> is folded to the bottom of the base <NUM>.

A second embodiment of the present invention will be described below, in which the same parts as those of the first embodiment will be omitted.

Referring to <FIG>, the base assembly <NUM> further includes a stroke enlarging mechanism <NUM>. A first end of the stroke enlarging mechanism <NUM> is connected with the base <NUM>, and a second end of the stroke enlarging mechanism <NUM> is connected with the supporting leg <NUM> through the traction element <NUM>. The first end of the stroke enlarging mechanism <NUM> is connected and fixed with the fixing frame <NUM> by a second fastener. The stroke enlarging mechanism <NUM> may be a rhombic telescopic frame. A buffer elastic element <NUM> may be provided at a connection between the traction element <NUM> and the supporting leg <NUM>, so as to prevent the structure of the supporting leg from being damaged by force when the supporting leg <NUM> is blocked during being folded.

Referring to <FIG>, when the supporting leg <NUM> is pivoted and folded, the stroke enlarging mechanism <NUM> is driven and shortened with the rotation of the supporting leg <NUM> and the driving element <NUM>, and the traction element <NUM> wraps around the driving element <NUM>, which in turn causes the traction element <NUM> to pull the supporting leg <NUM> and the sliding element <NUM> to move into the base <NUM>. This realizes that the supporting leg <NUM> is folded and retracted inward simultaneously, and the operation is convenient.

In this embodiment, the stroke enlarging mechanism <NUM> is provided to enlarge a distance with which one end of the traction element <NUM> is driven by the supporting leg <NUM>, and drive the supporting leg <NUM> and the sliding element <NUM> to extend and retract together for a longer distance, so that the supporting leg <NUM> and the sliding element <NUM> retract in place without protruding to the front of the base <NUM> while the supporting leg <NUM> is pivoted to the accommodating groove <NUM>, and vice versa.

Referring to <FIG> and <FIG>, the base assembly <NUM> further includes a supporting leg indicator <NUM> linked with the second end of the stroke enlarging mechanism <NUM>. The sliding element <NUM> is provided with an indication window <NUM> for at least partially exposing the supporting leg indicator <NUM>. When the supporting leg <NUM> is unfolded and the sliding element <NUM> extends out from the front of the base <NUM>, the supporting leg indicator <NUM> may indicate whether the supporting leg is in the unfolded state through the indication window <NUM>, which may be achieved, for example, by displaying corresponding colors. With the supporting leg indicator <NUM>, a state of the supporting leg <NUM> may be conveniently determined, thereby facilitating to be used; moreover, the supporting leg indicator <NUM> is driven by the stroke enlarging mechanism <NUM>, and there is no need to additionally provide a driving element, so that the structure is simple. In addition, the stroke enlarging mechanism <NUM> is completely synchronized with the unfolding or folding of the supporting leg <NUM>, so that the user may be more accurately prompted about the unfolding or folding state of the supporting leg <NUM>.

Specifically, when the supporting leg <NUM> is unfolded, the stroke enlarging mechanism <NUM> drives the supporting leg <NUM> and the sliding element <NUM> to protrude towards the front of the base <NUM>, and a color part (for example, a green part) of the supporting leg indicator <NUM> is aligned with the indication window <NUM>, indicating that the supporting leg <NUM> is unfolded. When the supporting leg <NUM> is folded, another color part (for example, a red part) of the supporting leg indicator <NUM> is aligned with the indication window <NUM>.

The second embodiment is mainly different from the first embodiment in that, one end of the traction element <NUM> is connected with the supporting leg <NUM>, and the other end of the traction element <NUM> is connected with the base <NUM> through the stroke enlarging mechanism <NUM>, so that the rotation of the supporting leg <NUM> may drive the supporting leg <NUM> to extend and retract for a longer distance, so as to meet better use requirements.

A third embodiment of the present invention will be described below, in which the same parts as those of the first embodiment will be omitted.

Referring to <FIG>, in this embodiment, the base assembly has a stroke enlarging mechanism <NUM>. The stroke enlarging mechanism <NUM> is a pulley mechanism. The pulley mechanism includes a movable pulley <NUM> disposed on the sliding element <NUM>, a fixed pulley <NUM> disposed on the base <NUM>, and a linkage <NUM> connecting the movable pulley <NUM> and the fixed pulley <NUM>. A first end of the traction element <NUM> is connected with the movable pulley <NUM>, and a second end of the traction element <NUM> is connected with the supporting leg <NUM>. The first end of the linkage <NUM> is fixed on the sliding element <NUM>. The second end of the linkage <NUM> sequentially bypasses the movable pulley <NUM> and the fixed pulley <NUM>, and then is fixed on the sliding element <NUM>.

The sliding element <NUM> is provided with a sliding groove <NUM>. The movable pulley <NUM> is movably disposed in the sliding groove <NUM>. Referring to <FIG>, the fixed pulley <NUM> is located on a left side of the movable pulley <NUM>. Of course, referring to <FIG>, the fixed pulley <NUM> may also be located on a right side of the movable pulley <NUM>, and a fixed position of the first end and a fixed position of the second end of the linkage <NUM> may be adjusted accordingly.

When the supporting leg <NUM> is folded, the traction element <NUM> wraps around the driving element <NUM> and pulls the supporting leg <NUM> and the sliding element <NUM> to move into the base <NUM> with rotation of the supporting leg <NUM> and the driving element <NUM>. This realizes that the supporting leg <NUM> is retracted inward and folded synchronously. In this process, as the traction element <NUM> pulls the movable pulley <NUM>, the linkage <NUM> pulls the supporting leg <NUM> and the sliding element <NUM> towards the base <NUM>, so that the sliding element <NUM> is retracted into the base <NUM>.

A fourth embodiment of the present invention will be described below, in which the same parts as those of the first embodiment will be omitted.

Referring to <FIG> and <FIG>, the base assembly has a stroke enlarging mechanism <NUM>. The stroke enlarging mechanism <NUM> is a pulley mechanism. The pulley mechanism includes a movable pulley <NUM> disposed on the sliding element <NUM>, a fixed pulley <NUM> disposed on the base <NUM>, and a linkage <NUM> connecting the movable pulley <NUM> and the fixed pulley <NUM>. The fixed pulley <NUM> includes a first fixed pulley <NUM> and a second fixed pulley <NUM> which are symmetrically disposed, and the linkage <NUM> may include a first linkage <NUM> and a second linkage <NUM> which are symmetrically disposed. A first end of the first linkage <NUM> is fixed on the sliding element <NUM>, a second end of the first linkage <NUM> passes through the movable pulley <NUM> and the first fixed pulley <NUM> and is fixed on the sliding element <NUM>, the first end of the second linkage <NUM> is fixed on the sliding element <NUM>, and the second end of the second linkage <NUM> passes through the movable pulley <NUM> and the second fixed pulley <NUM> and is fixed on the sliding element <NUM>.

The sliding element <NUM> may be provided with a sliding groove <NUM>. The movable pulley <NUM> is movably disposed in the sliding groove <NUM>.

When the supporting leg <NUM> is folded, the traction element <NUM> wraps around the driving element <NUM> and pulls the supporting leg <NUM> and the sliding element <NUM> to move into the base <NUM> with the rotation of the supporting leg <NUM> and the driving element <NUM>. This realizes that the supporting leg <NUM> is retracted inward and folded synchronously. In this process, as the traction element <NUM> pulls the movable pulley <NUM>, the linkage <NUM> pulls the supporting leg <NUM> and the sliding element <NUM> towards the base <NUM>, so that the sliding element <NUM> is retracted into the base <NUM>. A first end of the traction element <NUM> is connected with the movable pulley, and a second end of the traction element <NUM> is connected with the supporting leg <NUM>. The driving element <NUM> is formed with a traction element limit groove <NUM> for limiting the traction element <NUM>.

A fifth embodiment of the present invention will be described below, in which the same parts as those of the first embodiment will be omitted.

Referring to <FIG>, the base assembly has a stroke enlarging mechanism <NUM>. The stroke enlarging mechanism <NUM> is a pulley mechanism. The pulley mechanism includes a movable pulley <NUM> and a first fixed pulley <NUM> disposed on the sliding element <NUM>, a second fixed pulley <NUM> disposed on the base <NUM>, and a linkage <NUM> connecting the first fixed pulley <NUM>, the movable pulley <NUM> and the second fixed pulley <NUM>. A first end of the traction element <NUM> is connected with the movable pulley <NUM>, and a second end of the traction element <NUM> is connected with the supporting leg <NUM>.

The base <NUM> is provided with a positioning column <NUM>. The sliding element <NUM> is provided with an avoidance groove <NUM> to avoid the positioning column <NUM>. A first end of the linkage <NUM> is fixed on the positioning column <NUM>, and a second end of the linkage <NUM> sequentially passes through the first fixed pulley <NUM>, the movable pulley <NUM> and the second fixed pulley <NUM> and is fixed on the sliding element <NUM>.

The sliding element <NUM> includes a sliding bracket <NUM> slidably connected to the base bracket <NUM> and a housing <NUM> connected with the sliding bracket <NUM>. For example, the housing <NUM> is connected and fixed with the sliding bracket <NUM> by rivets. One of the base bracket <NUM> and the sliding bracket <NUM> is provided with a sliding groove <NUM>, and the other of the base bracket <NUM> and the sliding bracket <NUM> is provided with a sliding rod <NUM> matched with the sliding groove <NUM>. In this embodiment, the sliding bracket <NUM> is provided with a sliding groove <NUM>, and the base bracket <NUM> is provided with a sliding rod <NUM>; however, positions of the sliding groove <NUM> and the sliding rod <NUM> may be interchangeable. In this embodiment, specifically, the sliding groove <NUM> is disposed on the sliding bracket <NUM>, and the sliding rod <NUM> is disposed on the base bracket <NUM> and passes through the sliding groove <NUM>. It can be understood that the above structures of the base bracket <NUM>, the sliding bracket <NUM>, the sliding groove <NUM> and the sliding rod <NUM> may be applied to any of the other embodiments described above.

With the above-mentioned technical solutions, the embodiments of the present disclosure have the following advantages (Note that the different embodiments can be combined with each other):.

Claim 1:
A base assembly (<NUM>) comprising:
a base (<NUM>);
a supporting leg (<NUM>);
a sliding element (<NUM>) telescopically disposed on the base (<NUM>), the supporting leg (<NUM>); being pivotally connected to the sliding element (<NUM>) and extending and retracting together with the sliding element (<NUM>); characterized in that
a traction element (<NUM>) is configured to pull the supporting leg (<NUM>) and the sliding element (<NUM>) to move towards the base (<NUM>) as the supporting leg (<NUM>) rotates from an unfolded position to a folded position.