JP2016112100A - Support base opening/closing structure and stool base - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support base opening/closing structure which can be stored compactly as compared to a conventional one and can be configured simply and strongly, and a stool base.SOLUTION: A support base opening/closing mechanism comprises: a base member B; slide rails R, Rformed on a front side face of the base member; sliders S slidable in the slide rails; a top plate T which is slidable in the slide rails while interlocking with the sliders, provided so as to freely enter and exit from upper ends of the slide rails, and provided continuously to the sliders in a rotatable manner; door panels D, Dprovided continuously to the right and left of the base member in a rotatable manner; and link members L, Lwhose one end is provided continuously to the slider in a rotatable manner and the other end is provided continuously to the door plate in the rotatable manner. The link members constitute a link mechanism in which the door panels are closed in a state of storing the top plate, and the right and left door panels open when the top plate is drawn. The door panels support a bottom face of the top plate when the top plate is rotated to a horizontal position while a lower side of the top plate is drawn to the upper ends of the slide rails.SELECTED DRAWING: Figure 1

Description

  TECHNICAL FIELD The present invention relates to a support for opening / closing and storing a support base used for applications such as a platform such as a stool, a footrest, a platform for placing small items such as flower pots, an entrance bench, and the like, and a stool using the structure.

  As the support base opening / closing structure, for example, those described in Patent Documents 1 and 2 are known.

  FIG. 13 shows an opening / closing storage structure for a support (entrance bench) described in Patent Document 1. The support base opening / closing structure 100 shown in FIG. 13 has left and right side plates 101 and 102 as rear columns, a seat plate 103 pivotally supported from a horizontal position to a vertical position between the left and right side plates 101 and 102, and a front column. Left and right leg plates 104, 105 provided on the left and right side plates so as to be openable and closable so as to hold the horizontal position of the seat surface plate 103, and the rear surface of the seat surface plate 103 and the left and right leg plates 104, 105 are rotatably connected. Links 106 and 107 are provided. The links 106 and 107 are configured so that the left and right leg plates 104 and 105 are closed when the seat plate 103 is pulled up vertically, and the left and right leg plates 104 and 105 are opened to support the seat plate 103 when the seat plate 103 is returned to the horizontal position. Is configured.

  Further, in Patent Document 2, as an opening / closing storage structure of a support base (folding chair), a seat plate constituting a horizontal seating surface, and a pair of first side plate and second side plate constituting a leg portion, respectively. The first side plate is formed of a substantially rectangular flat plate, the seat plate and the second side plate are divided into a plurality of segments, and the segments are connected by a hinge. Thus, it has a configuration that can be folded into a plurality of pieces, and in a state in which the hinges between the segments are opened, the plurality of segments for the seat plate constitute a horizontal seating surface, The plurality of segments for the side plate describes a support base (folding chair) having a function of substantially supporting a seat load applied to the seat surface by the second side plate.

  In addition, as a technique related to the technical field of the present invention, a technique described in Patent Literature 4-8 is known.

  On the other hand, as a seat base, for example, the one described in Patent Document 3 is known in addition to the one described in Patent Documents 2 and 4-8.

JP 2003-102582 A JP 2003-153760 A Japanese Patent No. 5074629 Japanese Patent Laid-Open No. 2003-386 JP 2006-34464 A Utility Model Registration No. 3107819 Utility Model Registration No. 3108618 Specification Utility Model Registration No. 311486 Specification

  In the support base opening / closing structure described in Patent Document 1, when the seat surface plate 103 is folded (in a state where the seat surface plate 103 is pulled up vertically), the links 106 and 107 are exposed to the front surface of the seat surface plate 103 as shown in FIG. For this reason, the links 106 and 107 are caught and hindered during storage. Further, in the folded state, the height of the left and right leg plates 104 and 105 and the height of the seating surface plate 103 are added, so that there is a disadvantage that the length is increased in the vertical direction and a large storage space is required. Further, there is a disadvantage that the seating surface plate 103 falls down in the horizontal direction and easily opens during carrying, which causes inconvenience in carrying work.

  On the other hand, the support base opening / closing structure described in Patent Document 2 can be folded more compactly than the one described in Patent Document 1, but is configured by connecting many members with hinges, and the overall structure is There is a drawback of being complicated. In addition, since the seating surface is divided into a plurality of plates and hinged, the strength is inevitably weak.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a support base opening / closing structure that can be stored compactly compared to conventional ones, that can be easily transported and stored, and that can be configured simply and robustly, and a stool base using the structure. There is.

The first configuration of the support stand opening and closing structure according to the present invention is a base member that is erected vertically to the floor surface;
A slide rail formed vertically on the front side of the base member;
A slider slidably provided on the slide rail;
The slide rail is slidably provided in conjunction with the slider, and is provided so as to be able to enter and exit from the upper end of the slide rail groove. The lower end of the slide rail is pivotable forward by a hinge with respect to the slider. A continuous top plate,
A pair of door plates connected to the left and right of the front side of the base member so as to be rotatable forward by a hinge; and
A pair of link members having one end rotatably connected to the front side surface of the slider by a universal joint and the other end rotatably connected to the side surface of the door plate facing the slider by a universal joint; With
The link member has the left and right door plates closed when the left and right door plates are closed in a state where the top plate is housed in the slide rail, and the lower side of the top plate is pulled out to the upper end of the groove of the slide rail. Constitutes a link mechanism that opens,
The left and right door plates support the lower surface of the top plate when the top plate is rotated to a horizontal position with the lower end of the top plate pulled out to the upper end of the groove of the slide rail. Features.

  According to this configuration, when the top plate is pulled up above the slide rail, the slider is pulled up on the slide rail upward in conjunction with the top plate. Since the left and right door plates are connected to the slider by a link member, the door rotates and opens forward as the slider moves upward. Pull up the top plate until the bottom side of the top plate is exactly at the top edge of the slide rail, then rotate the top plate forward, the front side of the top plate faces down, and the back of the top plate faces up It turns until it hits the upper side of the left and right door plates. In this state, the top plate is supported by the base member and the legs of the left and right door plates, and the support base is configured. When the top plate is stored, the reverse operation may be performed.

  Here, the support stand opening and closing structure according to the present invention can be used for various purposes such as seats, scaffolding for bookshelf steps, stands for placing small items such as flower pots, entrance benches, auxiliary seats for buses and trains, etc. Can be used.

  According to a second configuration of the support base opening / closing structure according to the present invention, in the first configuration, the door plate is configured such that the height of the upper edge is the same as the upper end of the slide rail, and the lower edge is It is configured to be in contact with the floor or via a height-adjustable adjuster provided at the lower edge.

  According to this configuration, by making the height of the upper edge of the door plate the same as the upper end of the slide rail, when the top plate is rotated horizontally, the front side surface of the top plate is different from the entire upper edge of the door plate. Since it comes into contact, the top plate is stably supported. In addition, the door plate is configured so that the lower edge of the door plate is in contact with the floor surface or in contact with the floor surface via a height-adjustable adjuster provided on the lower edge. Is stably placed on the floor, and the entire support table can be stably placed.

A third configuration of the support base opening / closing structure according to the present invention includes a rotation angle regulating means for regulating a range of an opening angle of the door plate in the first or second configuration,
The link member is in a state in which the door plate is closed, the lower side of the slider is located above the lower end or the lower end of the slide rail, and the door plate is opened to the maximum. The position of the universal joint on the side surface of the slider and the position of the universal joint on the side surface of the door plate are adjusted so that the lower side of the top plate becomes the height of the upper end of the slide rail. And

  According to this configuration, by providing the rotation angle restricting means, it is possible to prevent the slider from being pulled out of the slide rail, and it becomes unnecessary to perform visual adjustment of the pulling position of the top plate. Becomes easy.

  Here, as the “rotation angle restriction means”, a hinge rotation angle restriction structure that restricts the opening angle of the hinge of the door plate or a slider stopper structure that restricts the sliding range (uppermost range) of the slider is used. can do.

A fourth structure of the support base opening / closing structure according to the present invention is the first engaging part or the magnetically attaching part provided on the upper side of each door plate in any one of the first to third structures. When,
A second engagement portion or a magnetic attachment portion provided on the front side surface of the top plate,
The second engaging part or the magnetically attached part is in a state in which the door plate is opened to a position where the lower side of the top plate is at the height of the upper end of the slide rail, and the front side surface of the top plate is the door plate. When the top plate is rotated until it becomes parallel to the upper side, it is arranged at a position where it is engaged or magnetically attached to the first engaging part or the magnetically attaching part.

  According to this configuration, when the support plate is configured by rotating the top plate until the front side surface of the top plate is parallel to the upper side of the door plate, the first engagement portion or the magnetic attachment portion and the second attachment The engagement portion or the magnetic attachment portion is engaged or magnetically attached, and the top plate is fixed to the upper side of the door plate. As a result, it is possible to effectively prevent an accident that a certain level of impact is applied to the top board and that is accidentally drowned.

A stool base according to the present invention is a stool base provided with a support base opening / closing structure of any one of the first to fourth configurations,
A suction cup is provided on the left and right sides of the base member with the suction surface facing the back surface of the base member.

  According to this configuration, the suction cup can be adsorbed to the wall surface and the seating base can be fixed to the wall surface for use. Therefore, for example, by using the seat base fixed to the outer wall of the bathtub in the bathroom, it can be used as an auxiliary seat base for a user who has difficulty in getting in and out of the bathtub.

  As described above, according to the support base opening / closing structure of the present invention, the top plate, the slider, and the left and right door plates are interlocked by the link and the hinge, so that the operation of unfolding and storing the top plate can be easily performed with one hand. Can be done. In the state where the top plate is stored in the slide rail, the base member, the top plate, the slider, and the left and right door plates are in a parallel state, and are compact and easy to store and carry.

  Further, according to the seating base of the present invention, by adopting the support base opening and closing structure of the present invention, as described above, it is excellent in operability, storage property and transportability, and the sucker is adsorbed to the wall surface to Since it can be used by being fixed to the wall, for example, by using a stool that is fixed to the outside wall of the bathtub in the bathroom, it can be used as an auxiliary stool when a user with limited mobility goes into and out of the tub. It can be used as a stand.

  Moreover, since the number of parts is small compared to the structure of Patent Document 2, it can be configured simply and robustly.

It is a perspective view showing the basic composition of the support stand opening-and-closing structure concerning Example 1 of the present invention. It is a figure showing operation | movement of the support stand opening-and-closing structure of FIG. It is a figure showing operation | movement of the support stand opening-and-closing structure of FIG. It is explanatory drawing of the link mechanism of the support stand opening-and-closing structure of FIG. (A) Front side perspective view, (b) Rear side perspective view, and (c) Top plate, slider, and link member in the closed state (closed state) of the seating base according to Embodiment 2 of the present invention It is the top view which showed. 6A is a front view, FIG. 6B is a rear view, FIG. 5C is a plan view, FIG. 5D is a bottom view, and FIG. It is the (a) front side perspective view and (b) back side perspective view in the state (half-open state) which pulled up the top plate of the seat base of FIG. 8A is a front view, FIG. 7B is a rear view, FIG. 8C is a plan view, FIG. 7D is a bottom view, and FIG. FIG. 6A is a front perspective view and FIG. 6B is a rear perspective view in a state where the top plate of the seat base of FIG. 5 is pulled up to a maximum position and the top plate is tilted to a horizontal position (deployed state). FIG. 10A is a front view, FIG. 10B is a rear view, FIG. 10C is a plan view, FIG. 9D is a bottom view, and FIG. This is an example in which the stool 1 of Example 2 is used as a stool for a bathroom. (A) The front view of the top plate 5 in the seating base of Example 3, (b) It is an enlarged view of the upper end surface vicinity of the doors 7 and 7 in the state opened from the closed state. This is an open / close storage structure for a support base (entrance bench) described in Patent Document 1.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

FIG. 1 is a perspective view showing a basic configuration of a support base opening / closing structure according to Embodiment 1 of the present invention. In FIG. 1, the support base opening and closing structure according to the present embodiment includes a base member B, left and right slide rails R _l and R _r , a slider S, a top plate T, a pair of left and right door plates D _l and D _r , and a pair of left and right doors. Link members L _2l and L _2r are provided. In FIG. 1, coordinate axes (x axis, y axis, z axis) are shown for reference, the z axis is taken in the vertical direction, and the x axis and the y axis are taken in the floor surface. Further, the x axis is oriented parallel to the lateral direction of the base member B, the y axis is oriented perpendicular to the base member B, and the x coordinate of the origin is the center of the base member B in the lateral direction. Moreover, the dotted line shown in FIG. 1 has shown the locus | trajectory of the lower end side vertex of the right-and-left door plates _Dl and _Dr.

  The support base opening / closing structure of the present embodiment is configured to be bilaterally symmetrical.

The base member B is erected vertically with respect to the floor surface. The slide rails R ₁ and R _r are formed vertically on the left and right sides of the front side surface of the base member B, and are formed in a groove shape that opens toward the inside. Further, the left and right side portions of the base member B are formed so as to protrude a predetermined distance toward the front.

In this embodiment, the slide rails R ₁ and R _r are formed on the left and right _sides of the base member B. However, in the present invention, the configuration of the slide rail is not limited to this. For example, the base member B may be formed vertically in the center.

The slider S is a rectangular plate that is slidably provided on the slide rail. The top plate T is a rectangular plate that is slidably provided on the slide rails R _l and R _r in conjunction with the slider S. The top plate T is the upper end E of the grooves of the slide rails R _l and R _{r. Enter} and exit from _l and _Er . Further, the upper side of the lower side and the slider S of the top plate T, the hinge _{H t} (bold line) are continuously provided by the top plate T has slide rails _R l, the upper end of the _{R r E} l, exiting the _{E r} In the state, the top plate T is rotatable forward with respect to the slider S.

The door plates D ₁ and D _r are connected to the portions protruding forward on the left and right sides of the base member B so as to be rotatable forward by hinges H _dl and H _dr (indicated by bold lines).

One end of each of the link members L _2l and L _2r (indicated by a bold line) is rotatably connected to the front side surface of the slider S by universal joints P _3l and P _3r (indicated by a dot), and the other end is a door plate D _l. universal joint _P 2l on the side facing the slider S of the _{D r,} are continuously provided rotatably by _{P 2r} (indicated by a point). The link members L _2l and L _2r are in a state where the left and right door plates D _l and _Dr are closed (see FIG. 1) when the top plate T is housed in the slide rails R _l and R _r . lower side slide rail R _l in _and constitute upper end E _l of the groove of R _r, door panels D _l of the right and left when it is pulled out to E _r, a link mechanism in a state in which D _r is opened. Further, the left and right door panels _D l, _{D r} is the lower side slide rail _R l of the top plate T, the upper end _E l of the groove of _{R r,} the state drawn up _{E r} (door panel _D l, _{D r} opens state) in (see FIG. 3 (b)), the top plate T in when rotated about the hinge H _t to the horizontal position, see the lower surface of the top plate T is supported (Figure 3 (b)).

2 and 3 are views showing the operation of the support base opening / closing structure of FIG. Pulling top plate T slide rails R _l, above the R _r, as shown in FIG. 2, lifted slide rails R _l, the inside R _r slider S is upward in conjunction with the top plate T . Further, the left and right door panels _D l, _{D r,} because they are connected to the slider S link member _{L 2l,} by _{L 2r,} along with the slider S is moved upward, the door plate _D l, _{D r} forward Rotate toward and open the door. A state in which the top plate is pulled up until the bottom side of the top plate T is positioned at the upper ends E ₁ and E _r of the slide rails R ₁ and R _r (FIG. 2B). In this case, the door opening angle θ of the door plates D ₁ and D _r becomes the maximum. In the present embodiment, an example in which the maximum opening angle θ _max is 90 degrees in the maximum opening state is shown, but in the present invention, the maximum opening angle θ _max is not limited to this, and the maximum opening angle θ It is only necessary that the left and right door plates D ₁ and D _r be at a position sufficient to support the lower surface of the top plate T at _max . Specifically, from the viewpoint of stability, the maximum door opening angle θ _max is preferably 80 to 90 degrees.

After pulling up the top plate T to a position where the maximum door opening state, as shown in FIG. 3, a top plate T is rotated forward around the hinge H _t, upwards back of the top plate T, heaven The front side of the plate T is turned downward, and the top plate T is rotated until it abuts on the upper sides of the left and right door plates D ₁ and D _r (see FIG. 3B). In this state, the top plate T is supported by the legs formed by the base member B and the left and right door plates D ₁ and D _r, and a support base is formed.

  When the top plate T is stored, the reverse operation may be performed.

  FIG. 4 is an explanatory diagram of the link mechanism of the support base opening / closing structure of FIG. 4A and 4B show the left one of the left and right link mechanisms of the support base opening / closing structure of FIG.

In FIG. 4, the z-axis is vertically upward and is on the movement axis of the center point of the universal joint P _3l . The xy plane is a horizontal plane, the x-axis is parallel to the lower side of the base member B, the y-axis is perpendicular to the surface of the base member B, and the directions of the x-axis and y-axis are the same as in FIG. Also, for clarity, ignoring the thickness of the door panel D _l, the position of the center point of the universal joint P _3l in a state where the door plate D _l is completely closed to the origin O.

Joint _{P 2} are universal joints _{P 2l} of the center point of Figure 1, the joint _{P 3,} the center point of the universal joint _{P 3l} 1, the link _{L 2} corresponds to the link member _{L 2l} FIG. The joint P ₀ is fixed at the origin O. The joint P ₁ is on the rotation axis of the hinge H _dl and represents the point whose height is the same as the joint P ₂ . The link L ₀ represents a link connecting the joint P ₀ and the joint P ₁ and is a fixed link. The link L ₁ represents a link connecting the joints P ₁ P ₂ and is a link that rotates on the horizontal plane around the joint P ₁ . Link L ₃ represents a link between the joint P ₃ P _0, a link to stretching is constrained on the z-axis.

Moreover, door panels D _l is the position of the joint P ₂ in completely closed B, and the position of the joint P ₂ in a state in which the door panels D _l is 90 degrees open the C.

The link mechanism of the support base opening / closing structure in FIG. 1 can be considered as a three-dimensional chain composed of the links L _{0 to} L _{3 in} FIG. The position coordinates of the joint P ₁ with respect to the origin are (x ₁ , y ₁ , z ₁ ), the position coordinates of the joint P ₃ are (0, 0, z ₃ ), and the length of the link L ₁ (the rotation radius of the joint P ₁ ) , R _d , and the angle between the x axis and the link L ₁ (referred to as the “door opening angle”) is θ (the direction is positive on the xy plane, clockwise), the joint with respect to the door opening angle θ. height _{z 3} of the P ₃ is expressed by the following equation.

When the maximum door opening angle is θ _max , the condition for the door plate D _{1 to} be fully opened to the maximum door opening angle θ _max is given by the condition that the inside of the root sign of the formula (1a) is positive,

It becomes. In particular, when θ _max is 90 degrees,

It becomes. Accordingly, the lengths of the link members L _2l and L _2r , the positions of the universal joints P _2l and P _2r , and the positions of the universal joints P _3l and P _3r seem to satisfy the relationship of the expression (2) or the expression (3). You may adjust to.

When the support base is actually configured using the support base opening / closing structure of FIG. 1, since the door plates D ₁ and D _r have a thickness, the position of the joint P _{2 at} the door opening angle θ = 0 is the point B For example, when the position becomes point B ₀ in FIG. 4A and θ _max = 90 degrees, the joint P ₂ moves between the point B ₀ and the point C ₀ . Therefore, at the state where door panels _{D l} is fully closed it becomes _{θ <0, z 3 <0} . When the opening angle θ at the point B ₀ is θ ₀ , and the position coordinates of the joint P ₃ at θ = θ ₀ are (0, 0, −a), the closing position correction constant a is

It becomes.

Further, if the vertical driving force applied to the joint P ₃ via the slider S and the universal joint P _3l is F, and the rotational force applied to the joint P ₂ with respect to the driving force F is F _θ ⁽¹⁾ , Since the relationship between the driving force F and the rotational force F _θ ⁽¹⁾ is as shown in FIG. 4B, the torque T ₁ acting on the link L ₁ with respect to the driving force F is

It becomes the relationship. Therefore, the lengths of the link members L ₂₁ and L _2r , the positions of the universal joints P ₂₁ and P _2r , and the position of the universal joints P ₂₁ and P _2r so that the torque efficiency T ₁ / F of the formula (5) is as large as possible in the movable range of the door opening angle θ. The positions of the universal joints P _3l and P _3r may be designed.

Incidentally, when the door opening angle theta is raised top plate T exceeds the maximum door opening angle theta _max, the slider S is slide rail R _l, the upper end E _l of R _r, fall out from the E _r. Therefore, it is preferable to provide a rotation angle restricting means so that the slider S does not move above the height h _max when the maximum door opening angle θ _max is reached. As the rotation angle restricting means, for example, a stopper is provided on the base member B or the slide rails R _l and R _{r so} that the slider S does not move above the height h _max , or the rotation of the hinges H _dl and H _d2 is performed. This can be realized by using hinges H _dl and H _d2 whose rotation angles are limited so that the moving range becomes θ ≦ θ _max .

In addition, when the support base opening / closing structure of the present embodiment is applied to a seat base or a step base, when the base plate T is expanded to the final state as shown in FIG. It is necessary to prevent it from rising easily. Accordingly, the first engagement portion or the magnetic attachment portion is provided on the upper sides of the door plates D ₁ and D _{r that} are in contact with the top plate T, respectively, and the second engagement is provided on the front side surface of the top plate T facing them. Or magnetized portions can be provided (see Example 2). Specifically, as the first and second engaging portions or magnetically attached portions, for example, door catchers such as roller catches, ball catches, and magnet catches (doors closed with door catchers are naturally opened by wind pressure, etc.) So that the door is securely held in a normal position.

  5A is a front perspective view, FIG. 5B is a rear perspective view, and FIG. 5C is a top plate, a slider, and a link member in a closed state (closed door state) of a seating base according to a second embodiment of the present invention. It is the top view which showed the state except for. 6A is a front view, FIG. 6B is a rear view, FIG. 6C is a plan view, FIG. 6D is a bottom view, and FIG. In addition, since the seat base of a present Example is right-and-left symmetrical, the right side surface and the left side surface are the same.

  7A is a front perspective view and FIG. 7B is a rear perspective view in a state in which the top plate of the seat base of FIG. 5 is pulled up to the maximum position (half-open state). 8A is a front view, FIG. 8B is a rear view, FIG. 8C is a plan view, FIG. 8D is a bottom view, and FIG. 8E is a left and right side view.

  FIGS. 9A and 9B are (a) a front side perspective view and (b) a back side perspective view in a state where the top plate of the seat base of FIG. 5 is pulled up to the maximum position and the top plate is lowered to the horizontal position (deployed state). 10A is a front view, FIG. 10B is a rear view, FIG. 10C is a plan view, FIG. 10D is a bottom view, and FIG.

  The seat base 1 of the present embodiment uses the support base opening / closing structure of the first embodiment. The seat 1 includes a base member 2, left and right slide rails 3 and 3, a slider 4, a top plate 5, left and right top plate hinges 6 and 6, left and right door plates 7 and 7, and four doors arranged vertically and horizontally. Plate hinge 8, left and right link members 9, 9, slider side universal joints 10, 10, door plate side universal joints 11, 11, adjusters 12, 12 attached to left and right door plates 7, 7; Four suction cups 13 arranged on the top, bottom, left and right, female door catchers 14a, 14a disposed on the upper sides of the left and right door plates 7, 7, and a male door disposed on the front side of the top plate 5 A catcher 14b is provided.

  The base member 2 is erected perpendicular to the floor surface. The base member 2 is constituted by a rectangular flat plate-shaped resin back plate 2a, and a vertically long square-shaped side member 2b protruding from the left and right of the front side surface of the back plate 2a. In this embodiment, the base member 2 is configured by combining the back plate 2a and the side members 2b, 2b, but the base member 2 may be configured by an integral part. The front edge of the base member 2 and the upper edge of the left and right sides are chamfered in an inclined manner. Further, the left and right vertical sides on the front side of the base member 2 are chamfered in an arc shape. In addition, U-shaped valley-shaped notches for attaching the suction cups 13 are formed on the vertical side surfaces on the outer sides of the left and right side members 2b, 2b, respectively, at two locations in the vertical direction.

  Further, as shown in FIGS. 5 (c) and 7 (a), the left and right side members 2b and 2b are cut into a saddle-shaped (L-shaped) shape at a portion contacting the front side surface of the back plate 2a on the inner side surface. An upward and downward groove is provided in a notch shape, and this is combined with the back plate 2 a to form the slide rail 3. Further, inside the upper end front edge portion of the side members 2b, 2b, scissors-shaped (L-shaped) notches 2c, 2c are formed by the width of the slide rail 3.

  The slider 4 is composed of rectangular members having substantially the same width as the distance between the left and right slide rails 3, 3 and is slidably provided between the grooves of the slide rails 3, 3.

  The top plate 5 is composed of a rectangular flat plate whose upper left and right corners are chamfered, the front side surface in the vicinity of the upper edge protrudes in a step shape, the upper step portion is a thick plate portion 5a, and the lower step portion is a thin plate portion 5b. Is formed. The thin plate portion 5b is slidably inserted into and removed from the grooves of the left and right slide rails 3 and 3, and the step between the thin plate portion 5b and the thick plate portion 5a causes the inside of the slide rails 3 and 3 of the top plate 5. The insertion depth is regulated. Further, a flange piece 5c protruding in a hook shape forward is formed at the step portion of the thick plate portion 5a. The lower surface of the flange piece 5c is a vertical surface with respect to the front side surface of the thin plate portion 5b, and the upper surface of the flange piece 5c is formed on a slope surface that smoothly connects to the front side surface of the thick plate portion 5a. Further, the height of the collar piece 5c (height protruding forward) is the upper surface of the collar piece 5c when the top plate 5 is completely inserted into the slide rails 3 and 3, as shown in FIG. Is adjusted to be substantially flush with the inclined surface of the front upper edge of the base member 2 chamfered in an inclined manner. This is to reduce the protruding corners as much as possible to prevent the corners from hitting the user during use and to improve the design by giving the appearance a smooth feeling. In the center of the thick plate portion 5a of the top plate 5, a handle hole 5d having a straight band shape is formed so as to penetrate between the front side surface and the rear side surface. With this handle hole 5d, the top plate 5 can be easily pulled upward.

  The front side surface of the top plate 5 and the slider 4 are rotatably connected by left and right top plate hinges 6 and 6. Thereby, the top plate 5 is connected to the slider 4 so as to be rotatable forward.

The left and right door plates 7 are composed of rectangular flat plate-like members, and can be rotated forward by upper and lower door plate hinges 8 and 8 on the vertical front edges inside the left and right side members 2b, respectively. It is connected continuously. Hereinafter, of the vertical left and right sides of the door plate 7, the side on which the door plate hinges 8 and 8 are provided is referred to as a base end side, and the opposite side is referred to as a front end side. Further, a state in which the door plate 7 is closed (a state in which the door plate 7 is parallel to the back plate 2a) is defined as a closed state, and the door opening angle of the door plate hinge 8 at that time is 0 degree. Further, the door opening angle of the door plate hinge 8 when the door plate 7 is rotated forward from the closed state is defined as θ ′ (in this embodiment, only the thickness of the door plate 7 is compared with FIG. 4). The center position of the door plate side universal joint 11 is biased to the back plate 2a side with respect to the position of the rotation axis of the door plate hinge 8 (see FIG. 5C), so when θ ′ = 0 °, 4, the opening angle θ is θ = −θ _min <0 ° Therefore, in order to distinguish from the opening angle θ in FIG. ). The door plate hinge 8 is regulated so that the opening angle θ ′ is 90 degrees at the maximum. As a result, the door opening angle θ ′ of the door plate 7 is limited to a maximum of 90 degrees. The height of the upper surface of the door plate 7 is the height of the upper surface of the notch 2c of the base member 2, and the height of the lower surface of the door plate 7 is slightly higher than the lower surface of the base member 2. Has been. In addition, an adjuster 12 having an adjustable height is provided in the vicinity of the tip side of the lower surface of the door plate 7. The adjuster 12 can freely adjust the height by rotating the adjusting nut 12a, and thereby the tip of the door plate 7 can be securely fixed to the floor surface.

  One pair of the left and right link members 9 and 9 is connected to the front side surface of the slider 4 so as to be rotatable by the slider side universal joints 10 and 10, and the other end faces the slider 4 of the left and right door plates 7 and 7, respectively. The side plate (hereinafter referred to as “inner side surface”) is connected to the door plate side universal joints 11 and 11 so as to be rotatable. In the closed state (FIGS. 5A and 5B), the link members 9 and 9 are positioned such that the lower side of the slider 4 is higher than the lower ends of the slide rails 3 and 3 (that is, the lower end of the base member 2). When the door plates 7 and 7 are opened to the maximum (maximum open state), the lower side of the top plate 5 is the height of the upper end of the slide rails 3 and 3 (the height of the upper surface of the notch 2c). Thus, the positions of the slider-side universal joints 10 and 10 and the door plate-side universal joints 11 and 11 are adjusted. About this position adjustment, it can determine using Formula (1a) and Formula (3) mentioned above. As described in the first embodiment, the link members 9 and 9 constitute a link mechanism that interlocks the vertical movement of the slider 4 and the top plate 5 with the opening and closing movements of the door plates 7 and 7.

  The suction cup 13 is disposed on the left and right sides of the base member 2 with the suction surface facing the back surface of the base member 2. The suction cup 13 can be adsorbed and desorbed by operating the handle 13a.

  A notch groove is formed in the vicinity of the top end of the upper surfaces of the left and right door plates 7 and 7, and female door catchers 14 a and 14 a are disposed therein. On the front side of the top plate 5, male door catchers 14b and 14b are arranged corresponding to the door catchers 14a and 14a. In addition, although the example which used the ball catch (Takigen Manufacturing Co., Ltd. C-1090) is shown as a door catcher 14a, 14b in a present Example, a roller catch, a magnet catch, etc. are used besides this. You can also. With the door catchers 14b and 14b, the door catchers 14b and 14b are fitted with each other in a state where the top plate 5 of the seating base 1 is horizontally tilted (FIGS. 9 and 10). For example, the top plate 5 is prevented from being easily rolled up.

  The operation of the link mechanism of the seating base 1 according to the present embodiment is the same as that described in the first embodiment, and will not be described.

  The stool 1 of the present embodiment can be used for various applications, but can be used as a stool for a bathroom as disclosed in Patent Document 3, for example. FIG. 11 shows an example in which the stool 1 of Example 2 is used as a stool for a bathroom. When the seat 1 is used, the seat 1 is fixed to the outer side surface of the bathtub 20 by the suction cup 13 as shown in FIG. Thereby, it is prevented that the seat base 1 shifts and can be used safely even for users with weak legs.

  When used as a stool, as shown in FIG. 11A, it is used in a state where the top plate 5 is pulled out and developed. About a concrete usage method, it is the same as that of the bathing auxiliary seat fixture described in patent document 3, for example, a user sits on the upper surface of the top plate 5, rotates, and goes in and out of the bathtub 20. FIG.

  Further, when not in use, the top plate 5 may be accommodated in the slide rails 3 and 3 as shown in FIG. As a result, the stool 1 is flat and attached to the outer wall of the bathtub 20, so it does not take up space and does not get in the way during cleaning work in the bathroom.

  Further, when transporting, the top plate 5 is accommodated in the slide rails 3 and 3, and the handle hole 5d is provided in a state as shown in FIG. Therefore, it is compact and very convenient for conveyance and storage.

  12A is a front view of the top plate 5 and FIG. 12B is an enlarged view of the vicinity of the upper end surfaces of the opening and closing doors 7 and 7 in a state where the seat is opened from the closed state. In the seat base 1 of the present embodiment, a pair of male door catchers 14c and 14c are newly provided on the top board 5 of the seat base of Embodiment 2, and a female door catcher of each door plate 7 is attached. The center of the cutout groove on the upper end surface of the door plate 7 is opened toward the back plate 2a. The rest is the same as in the second embodiment.

  The door catchers 14c and 14c are disposed on the step surface of the step portion between the thick plate portion 5a and the thin plate portion 5b of the top plate, and the position thereof is as shown in FIG. In the closed state, the door catchers 14c and 14c are positioned so as to be fitted to the door catchers 14a and 14a on the door plates 7 and 7 side.

  As a result, when the door catchers 14c and 14c are engaged with the door catchers 14a and 14a in the closed state, the top plate 5 is pulled up by applying a slightly large force to remove the door catchers 14c and 14c from the door catchers 14a and 14a. If not removed, the door plates 7, 7 will not open. Therefore, when carrying the stool 1, the door plates 7 and 7 are prevented from being opened when the handle 1 is held in the closed state with the handle hole 5d, and convenience in carrying is improved.

  Further, the door catchers 14b and 14b for fixing the top plate in the unfolded state and the door catchers 14c and 14c for fixing the top plate in the closed state are provided with common door catchers 14a and 14a as counterpart door catchers. Since the structure is used, the structure is simple and easy to design, and the number of parts is small, and it can be manufactured at low cost.

  In the present embodiment, an example in which the same ball catch as that of the second embodiment is used as each door catcher (engagement portion or magnetic attachment portion). However, as the engagement portion or the magnetic attachment portion, for example, a magnet A catch can also be used.

DESCRIPTION OF SYMBOLS 1 Seat base 2 Base member 2a Back plate 2b Side member 2c Notch 3 Slide rail 4 Slider 5 Top plate 5a Thick plate portion 5b Thin plate portion 5c Gage piece 5d Handle hole 6 Top plate hinge 7 Door plate 8 Door plate hinge 9 Link member 10 Slider side universal joint 11 Door plate side universal joint 12 Adjuster 12a Adjustment nut 13 Suction cup 13a Handle 14a Door catcher (female type)
14b Door catcher (male type)
14c Door catcher (male type)
20 Bathtub

The first configuration of the support stand opening and closing structure according to the present invention is a base member that is erected vertically to the floor surface;
A slide rail formed vertically on the front side of the base member;
A slider slidably provided on the slide rail;
The slide rail is slidably provided in conjunction with the slider, and is provided so as to be able to enter and exit from the upper end of the slide rail groove. The lower end of the slide rail is pivotable forward by a hinge with respect to the slider. A continuous top plate,
A pair of door plates connected to the left and right of the front side of the base member so as to be rotatable forward by a hinge; and
A pair of link members, one end of which is rotatably connected to the front side surface of the slider by a universal joint, and the other end of which is rotatably connected to the inner side of the door plate facing the slider by a universal joint; With
The link member has the left and right door plates closed when the left and right door plates are closed in a state where the top plate is housed in the slide rail, and the lower side of the top plate is pulled out to the upper end of the groove of the slide rail. Constitutes a link mechanism that opens,
The left and right door plates support the lower surface of the top plate when the top plate is rotated to a horizontal position with the lower end of the top plate pulled out to the upper end of the groove of the slide rail. Features.

Claims (5)

A base member standing perpendicular to the floor surface;
A slide rail formed vertically on the front side of the base member;
A slider slidably provided on the slide rail;
The slide rail is slidably provided in conjunction with the slider, and is provided so as to be able to enter and exit from the upper end of the slide rail groove. The lower end of the slide rail is pivotable forward by a hinge with respect to the slider. A continuous top plate,
A pair of door plates connected to the left and right of the front side of the base member so as to be rotatable forward by a hinge; and
A pair of link members having one end rotatably connected to the front side surface of the slider by a universal joint and the other end rotatably connected to the side surface of the door plate facing the slider by a universal joint; With
The link member has the left and right door plates closed when the left and right door plates are closed in a state where the top plate is housed in the slide rail, and the lower side of the top plate is pulled out to the upper end of the groove of the slide rail. Constitutes a link mechanism that opens,
The left and right door plates support the lower surface of the top plate when the top plate is rotated to a horizontal position with the lower end of the top plate pulled out to the upper end of the groove of the slide rail. Supporting base opening and closing structure.   The door plate has an upper edge having the same height as the upper end of the slide rail, and the lower edge is in contact with the floor or via a height-adjustable adjuster provided on the lower edge. The support base opening and closing structure according to claim 1, wherein the support base opening and closing structure is configured to contact. A rotation angle restricting means for restricting a range of an opening angle of the door plate;
The link member is in a state in which the door plate is closed, the lower side of the slider is located above the lower end or the lower end of the slide rail, and the door plate is opened to the maximum. The position of the universal joint on the side surface of the slider and the position of the universal joint on the side surface of the door plate are adjusted so that the lower side of the top plate becomes the height of the upper end of the slide rail. The support base opening / closing structure according to claim 1 or 2. A first engagement portion or a magnetic attachment portion provided on the upper side of each door plate;
A second engagement portion or a magnetic attachment portion provided on the front side surface of the top plate,
The second engaging part or the magnetically attached part is in a state in which the door plate is opened to a position where the lower side of the top plate is at the height of the upper end of the slide rail, and the front side surface of the top plate is the door plate. 2. The device according to claim 1, wherein when the top plate is rotated until it is parallel to the upper side, the top plate is disposed at a position where it is engaged with or magnetically attached to the first engagement portion or the magnetic attachment portion. The support base opening and closing structure according to any one of 3. A sitting base comprising the support base opening and closing structure according to any one of claims 1 to 4,
A seating base comprising suction cups disposed on the left and right sides of the base member with the suction surface facing the back surface of the base member.