JP6153102B2 - Folding table - Google Patents

Description

  The present invention relates to a folding table including a top plate formed by expanding two top plate members to the left and right, and at least three leg members for supporting the top plate on the lower surface of the top plate.

  Conventionally, when eating and drinking outdoors, a portable folding table for placing food and drink is often used. An ordinary foldable table is a table in which a two-folded top plate is unfolded to the left and right and a leg member is attached to the top plate (for example, Patent Document 1), or a leg member that is rotatably attached to the top plate is pulled out. (For example, Patent Document 2).

  However, even if the conventional folding table can be accommodated in a small size by dividing or folding the top plate of the table, it is necessary to perform a plurality of operations according to a predetermined procedure when assembling or cleaning the table. Therefore, it is not always easy to assemble or clean up outdoors.

  In addition, the conventional folding table has a large number of components, which not only makes the assembly or cleaning work complicated, but also increases the weight of the table, and thus is often inconvenient to carry.

  Therefore, in order to enjoy outdoor leisure comfortably, anyone can easily install it, and even if a load is applied to the top plate, it will not be damaged, and it can be easily accommodated after use. It is desirable to develop a folding table that can be easily carried.

JP 2012-143378 A JP 2011-15945 A

  An object of the present invention is to provide a foldable table that is excellent in carrying and easy to assemble but has sufficient strength for outdoor use.

  As a result of studies by the present inventor in order to solve the above-described problems, a leg member for supporting the top plate is formed on the lower surface of the top plate formed by the two top plate members that are rotatably connected to each other. And an automatic opening / closing mechanism including a support bar and a guide bar for connecting the leg member and rotating the leg member in accordance with the rotation of the top board member, thereby opening and closing the two top board members. The present invention has been completed by finding that the table can be easily assembled or cleared only by operation.

  That is, in the present invention, two top plate members that are pivotably connected with each other as an axis and are foldable with the lower surface facing each other, and the two top plate members are developed to the left and right. At least three leg members for supporting the top plate on the lower surface of the top plate to be formed, and a support bar and a guide bar connected to each leg member and for rotating the leg member as the top plate member rotates. A foldable table having a base end portion coupled to the lower surface of one top plate member so as to be rotatable in the same direction as the top plate member is rotated. A leg member and a support rod having a base end connected to the outer side of the leg member so that the leg member can rotate in the same direction as the top plate member. On the lower surface of the top plate member, there is provided a guide rod having a base end portion coupled to be rotatable in the same direction as the top plate member is rotated. A connecting portion in which the support rod and the guide rod are arranged so as to rotate on the same plane as the leg member rotates, and the tip end portion of the support rod and the tip end portion of the guide rod are rotatably connected. Are connected to the leg member so as to be slidable along the longitudinal direction of the leg member. When the leg member is lifted and unfolded, the top plate member is rotated and the top plate is folded, the connecting portion of the support bar and the guide bar is moved downward along the longitudinal direction of the leg member. The folding table is provided with an automatic opening / closing mechanism for each leg member that moves and closes when the leg member is pushed down.

  Furthermore, in the present invention, by connecting two top plate members having a frame around them and having a shallow recess on the lower surface at the edge of the frame, the top plate member is rotated and the top plate is folded. A foldable table characterized in that a leg member is accommodated in a space formed by two recesses.

  Furthermore, the present invention is a foldable table characterized in that the angle formed between the leg member and the support bar when the table is installed by rotating the top plate member and unfolding the top plate is approximately 90 degrees.

  Further, according to the present invention, the position of the connecting portion where the tip end portion of the support bar and the tip end portion of the guide rod are connected is set to the upper limit when the top plate is expanded and the table is installed, and the connecting portion further extends along the leg member. The foldable table is characterized in that the leg member is provided with sliding restriction means for preventing sliding upward.

Furthermore, the present invention provides a leg member having a through-groove extending through the side surface of the leg member and extending along the longitudinal direction, and a pair of protrusions projecting inwardly extending from both sides of the through-groove hole along the longitudinal direction. And forming a connecting portion in the through-slot hole, in which the tip of each of the support rod and the guide rod inserted through the openings on both sides of the through-slot hole is rotatably connected by the shaft core member. The connecting portion is provided with two protrusions on the left and right sides, and the two protruding portions on one side are arranged so as to sandwich the protruding portion, so that the connecting portion between the support rod and the guide rod is arranged in the longitudinal direction of the leg member. It is a foldable table characterized by connecting to a leg member so that sliding is possible along.

  Furthermore, the present invention is a foldable table characterized in that both ends of the shaft core member protruding from the connecting portion form a pair of left and right protrusions of the connecting portion.

According to another aspect of the present invention, the leg member is formed with a through-groove hole extending through the side surface of the leg member and extending along the longitudinal direction, and a concave strip portion extending in the longitudinal direction on both side walls of the through-groove hole. A shaft core member is formed in the through-groove hole, and a shaft core member projecting from the joint portion is formed by connecting the tip ends of the support rod and the guide rod respectively inserted through the openings on both sides of the hole so as to be rotatable by the shaft core member. Folding characterized in that the connecting portion between the support rod and the guide rod is slidably connected to the leg member along the longitudinal direction of the leg member by fitting both ends of the guide rod into the two concave strip portions respectively. It is an expression table.

  Further, according to the present invention, a substantially horizontal through hole communicating with the through groove hole is provided on the outer surface of the leg member, and the shaft core member is inserted from the outer surface of the leg member through the through hole, thereby being in the through groove hole. The folding table is characterized in that the tip end portion of the support rod and the tip end portion of the guide rod are rotatably connected, and both tip ends of the shaft core member are disposed in the through-groove hole.

  According to the folding table of the present invention, when the top plate is rotated to expand the top plate, the connecting portion of the support bar and the guide bar moves upward along the longitudinal direction of the leg member, and the leg member is pulled up. When the top plate is folded by rotating the top plate member, the connecting portion of the support bar and the guide bar moves downward along the longitudinal direction of the leg member, and the leg member is pushed down and closed, Assembling and clearing of the table can be easily performed by one operation of rotating the top plate member.

  In addition, by connecting two top plate members having a frame around them and having a shallow recess on the lower surface at the edge of the frame, when the top plate is rotated to fold the top plate, two recesses Since the leg member is accommodated in the space formed by the above, it is excellent in portability and easy to carry.

  Furthermore, even if an equivalent heavy object is placed on the top plate of the installed table by setting the angle formed between the leg member and the support bar when the top plate member is expanded and the table is installed to be approximately 90 degrees, The tip of the support bar that supports the top plate does not move with respect to the leg member, and the shape of the installed table can be stably maintained.

External view of foldable table ((a) Front view, (b) Side view, (c) Bottom view) AA sectional view of a folding table External perspective view of foldable table ((a) Top plate unfolded, (b) Top plate in the middle of folding, (c) Top plate folded) Enlarged view of the connecting part between the tip of the support bar and the tip of the guide bar The figure which shows the process of attaching the connection part of a support bar and a guide bar to a leg member.

  The folding table of the present invention will be described below with reference to the drawings.

  As shown in FIG. 1, the foldable table (1) includes two top plate members (3a, 3b) that are pivotably connected with one edge as an axis and foldable with the lower surface facing each other. And at least three leg members for supporting the top plate on the lower surface of the top plate (2) formed by extending the two top plate members (3a, 3b) to the left and right, and connected to each leg member And an automatic opening / closing mechanism (7) having a support bar (5) and a guide bar (6) for rotating the leg member in accordance with the rotation of the top plate members (3a, 3b). And Although FIG. 1 illustrates a table having four leg members, the present invention is not limited to this. The two leg members arranged on the lower surface of one top plate member are connected by a reinforcing member (20). The reinforcing member (20) suppresses the bending of the leg member and improves the strength. is there. The reinforcing member (20) should be appropriately attached when it is necessary to reinforce the leg member in accordance with the shape and material of the leg member, and is not necessarily a necessary member.

  The two top plate members (3a, 3b) are connected by attaching a connecting device such as a hinge, or a cylindrical portion is integrally formed on each side portion of the two top plate members to be connected. The shaft member can be pivotably connected by inserting a shaft member through the cylindrical portion to form a hinge structure.

  The attachment position of the leg member (4) to the lower surface of the top plate member (3a) is preferably performed in the vicinity of the side portion where the two top plate members (3a, 3b) are connected. If the leg member (4) is attached at such a position, the leg member (4) extends between the two top plate members (3a, 3b) when the top plate is rotated and the top plate is folded. It does not come out, and portability can be improved. In the table shown in FIG. 1, the leg member is mounted on the top plate so that the axis about which the leg member (4) rotates and the axis about which the two top plate members (3a, 3b) rotate are on the same line. It is attached to the lower surface of the member. However, when the leg member is short, the leg member does not extend between the two folded top plate members, so that the attachment position can be freely selected.

  As shown in FIG. 2, the automatic opening / closing mechanism (7) has a base end portion (on the bottom surface of one top plate member (3a)) that can rotate in the same direction as the top plate member (3a) rotates. 4b) is connected to the leg member (4), and the base end part is rotatable outwardly from the position where the leg member (4) is connected to the top board member in the same direction as the top board member is rotated. A support rod (5) connected to (5b), and a base end portion that is rotatable on the lower surface of the other top plate member (3b) in the same direction as the top plate member (3b) rotates. (6b) is provided with a guide rod (6), and the support rod (5) and the guide rod (6) are arranged so as to rotate on the same plane as the leg member (4) rotates. At the same time, a connecting portion (8) in which the tip portion (5a) of the support rod (5) and the tip portion (6a) of the guide rod (6) are rotatably connected is provided along the longitudinal direction of the leg member (4). In this structure, the leg member is slidably connected to the leg member.

The connection between the connecting member (8) and the leg member (4), in which the tip (5a) of the support rod (5) and the tip (6a) of the guide rod (6) are rotatably connected, is particularly limited. However, for example, as shown in FIG. 4, the leg member (4) is provided with a through groove hole (12) extending through the side surface of the leg member and extending along the longitudinal direction, and both side walls (12a) of the through groove hole. , 12b) and a pair of projecting ridges (13a, 13b) extending inwardly extending along the longitudinal direction, and supporting rods (5) inserted from both side openings of the through-slot holes (12), respectively And the guide rod (6) are connected at their distal ends (5a, 6a) with shaft core members (connecting pins) (14) and rotatably connected to the connecting portions (8) in the through-slot holes (12). And two protrusions (8a and 8b, 8c and 8d) on the left and right sides of the connecting part, and two protrusions (8a and 8b, 8c and 8d) on one side are respectively formed on the protrusions (13a, 13b) is disposed so as to sandwich the support rod (5) and the guide rod (6) connecting portion (8). Can be coupled to slidably leg member along the longitudinal direction of the leg member (4) (4).

Here, the shaft core member (connecting pin) (14) is made of metal, and the pair of left and right projecting portions (8a, 8c) protruding from the connecting portion (8) are both ends of the shaft core member (connecting pin) (14). Can be formed by projecting from the connecting portion (8). Thus, if it is made the structure which moves along a protruding item | line part by making both ends of an axial core member into a projection part, while being able to move a support bar and a guide bar reliably along the longitudinal direction of a leg member, it is in strength. It will be excellent. FIG. 4 shows an example in which the other pair of protrusions (8b, 8d) is formed integrally with the tip (6a) of the guide rod (6).

  Although not shown in the drawing, a concave strip extending in the longitudinal direction is formed on both side walls (12a, 12b) of the through groove hole (12), and the shaft core member (14) protruding from the connecting portion (8) is formed. By inserting both ends into the two recesses, the connecting portion (8) between the support rod (5) and the guide rod (6) can be slid along the longitudinal direction of the leg member (4). It can also be connected to a member.

  As shown in FIG. 5, the shaft core member (14) for pivotally supporting the support rod (5) and the guide rod (6) is attached to the outer surface of the leg member (4) in the through groove (12). A substantially horizontal through-hole (15) that communicates is provided, and the shaft core member (14) is inserted from the outer surface of the leg member (4) through the through-hole (15), thereby supporting the through-hole (12). The distal end portion (5a) of the rod (5) and the distal end portion (6a) of the guide rod (6) are rotatably connected, and both distal end portions of the shaft core member (14) are disposed in the through-slot holes. be able to.

  Thus, by providing the automatic opening / closing mechanism (7) on the leg member (4), when the top plate (3a, 3b) is rotated to unfold the top plate (2), the support rod (5) and The connecting portion (8) of the guide rod (6) moves upward along the longitudinal direction of the leg member (4), the leg member (4) is pulled up and deployed, and the top plate members (3a, 3b) are rotated. When the top plate (2) is folded by moving, the connecting part (8) of the support bar (5) and the guide bar (6) moves downward along the longitudinal direction of the leg member, and the leg member (4) is pushed down. And can be closed (FIG. 2). The automatic opening / closing mechanism (7) is provided for each leg member, and all the leg members can be deployed or accommodated only by rotating the top plate member (FIG. 3 (a)). To (c)).

  As shown in FIG. 1, in a table in which the tip portions of the four leg members are arranged below the four corners of the top plate, if the automatic opening / closing mechanism (7) is provided for each leg member, for example, two top plates The two guide rods (6, 17) connected to the two leg members (4, 16) facing each other across one side to which the plate members (3a, 3b) are connected have a structure intersecting each other, but FIG. As shown in c), the guide rod (6) connected to the leg member (4) supporting the right top plate member (3a) extends from the left top plate member (3b), and the left top plate member ( It passes through the through groove hole (18) provided in the leg member (16) supporting 3b) and is connected to the right leg member (4). On the other hand, the guide rod (17) connected to the leg member (16) supporting the left top plate member (3b) extends from the right top plate member (3a), and supports the right top plate member (3a). It passes through the through-groove hole (12) provided in the member (4) and is connected to the left leg member (16). The two guide rods (6, 17) are formed so that the intersecting portions are thin and do not interfere with each other. By connecting the two guide rods (6, 17) to the two leg members (4, 16) facing each other in this way, the two leg members (4, 16) rotating on the same plane can be obtained. It can be opened and closed smoothly.

  As shown in FIG. 2, the top plate member (3) has a shape in which a frame (9) is provided around and a shallow concave portion is provided on the lower surface, and the two top plate members (3a, 3b) 9a, 9b) can be connected at the edge (10). If the top plate member (3a, 3b) has such a shape, when the top plate (2a) is folded by rotating the top plate member (3a, 3b) (FIG. 3 (c)), two concave portions are formed. All the leg members (4) can be accommodated in the formed space, and it is easy to carry.

  The angle formed between the leg member (4) and the support bar (5) when the top plate (2) is unfolded and the table is installed is preferably about 90 degrees. Thus, even if a load is applied from above the top plate (2), for example, the connecting portion (8) can be connected to the leg member by abutting the tip of the support bar to the leg member at an angle of approximately 90 degrees. The table does not move upward or downward along (4), and the table can be stably held against a considerable load. Therefore, in the foldable table of the present invention, the table can be stably held only by unfolding the top plate and setting the table without requiring a lock mechanism for stably holding the table. .

  At the position of the connecting portion (8) where the tip end portion (5a) of the support rod (5) and the tip end portion (6a) of the guide rod (6) are connected, the top plate members (3a, 3b) are developed and a table is installed. The leg member (4) can be provided with a sliding restricting means (stopper bar (11)) for preventing the connecting portion (8) from sliding further upward, with the upper position at the upper limit (FIG. 1). (b), FIG. 2). Since the table installation is completed at a position where the top plate member is rotated and the top surfaces of the two top plate members are horizontal, the top plate member is further rotated to prevent the table from being damaged. Therefore, it is necessary to limit the rotation of the top plate member. In the foldable table shown in FIG. 1, when the top plate member is rotated, the two frames (9a, 9b) near the rotation shaft are opposed to each other at a position where the top surfaces of the two top plate members are horizontal. Since the wall surfaces come into contact with each other, the top plate member can be prevented from further rotating. However, when the top plate member is rotated with a strong force, there is a risk that the connecting portion of the two top plate members may be damaged. There is. Further, depending on the shape of the table, there may be a case where the top plate member is not provided with a frame and the side walls of the frames (9a, 9b) are not in contact with each other. Therefore, in order to reliably limit excessive rotation of the top plate member, it is necessary to install a slide limiting means (stopper bar (11)) for each leg member.

  As shown in FIG. 1 (b), the sliding restricting means includes a connecting portion (8) that rotatably connects the tip portion (5a) of the support rod (5) and the tip portion (6a) of the guide rod (6). ) Slides at the upper limit position in the longitudinal direction of the leg member (4), for example, the opposing inner surface of the through groove hole (12) is connected by a stopper bar (11), and the connecting part (8) is connected to the stopper bar. Can be prevented from sliding further upward. However, the sliding restriction means is not particularly limited as long as it can stop the sliding of the connecting portion (8), and should not be limited to the stopper rod (11) as shown in the figure. Absent.

DESCRIPTION OF SYMBOLS 1 Folding table 2 Top plate 3 Top plate member 3a Top plate member 3b Top plate member 4 Leg member 4a Tip part 4b Base end part 5 Support bar 5a Tip part 5b Base end part 6 Guide bar 6a Tip part 6b Base end part 7 Automatic opening / closing mechanism 8 Connecting portion 9 Frame 9a Frame 9b Frame 10 Edge end portion 11 Sliding limiting means (stopper bar)
12 Through-groove hole 12a Side wall 12b of through-groove hole Side wall 13 of through-groove hole Projection 13a Projection 13b Projection 14 Shaft core member (connecting pin)
15 Through-hole 16 Leg member 17 Guide rod 18 Through-groove hole 19 Support rod 20 Reinforcing member

Claims (8)

  Two top plate members that are pivotably connected with each other as an axis, and are foldable with the bottom surface facing each other, and a top plate formed by expanding the two top plate members to the left and right Automatic opening and closing provided with at least three leg members for supporting the top plate on the lower surface of the base plate, and a support bar and a guide bar connected to each leg member and for rotating the leg member as the top plate member rotates And a leg member having a base end connected to the lower surface of one top plate member so as to be rotatable in the same direction as the top plate member is rotated, A support rod having a base end connected to the outer side of the leg member so that the leg member can be pivoted in the same direction as the pivoting direction of the top plate member. The lower surface is provided with a guide bar having a base end connected to be rotatable in the same direction as the top plate is rotated. The leg member is arranged so as to pivot on a plane substantially the same as the plane in which the leg member pivots, and a connecting portion in which the tip end portion of the support rod and the tip end portion of the guide rod are pivotally connected to each other in the longitudinal direction of the leg member. When the top plate is rotated to expand the top plate, the connecting portion of the support bar and the guide bar moves upward along the longitudinal direction of the leg member. When the leg member is lifted and unfolded, the top plate member is rotated and the top plate is folded, the connecting portion of the support bar and the guide bar moves downward along the longitudinal direction of the leg member, and the leg member is pushed down. A foldable table comprising an automatic opening and closing mechanism that is closed by being provided for each leg member.   Two top plate members with a frame around them and a shallow recess on the bottom are connected at the edge of the frame, so that when the top plate is folded to fold the top plate, it is formed with two recesses The foldable table according to claim 1, wherein a leg member is accommodated in the space to be formed.   The folding table according to claim 1 or 2, wherein an angle formed by the leg member and the support bar when the table is installed by rotating the top plate and unfolding the top plate is approximately 90 degrees.   The position of the connecting portion where the tip of the support rod and the tip of the guide rod are connected is the upper limit when the top plate is expanded and the table is installed, and the connecting portion further slides upward along the leg member. The foldable table according to any one of claims 1 to 3, wherein the leg member is provided with sliding restriction means for preventing this. The leg member includes a through-groove hole extending through the side surface of the leg member and extending along the longitudinal direction, and a pair of ridges projecting inwardly extending from both side walls of the through-groove hole along the longitudinal direction. A connecting portion is formed in the through-groove hole, and the tip portion of each of the support rod and the guide rod inserted through the openings on both sides of the through-groove hole is rotatably connected by the shaft core member. Two protrusions are provided on the left and right sides, and the two protrusions on one side are arranged so as to sandwich the protrusions, so that the connecting part between the support bar and the guide bar can slide along the longitudinal direction of the leg member. The foldable table according to any one of claims 1 to 4, wherein the foldable table is connected to a leg member.   6. The folding table according to claim 5, wherein both ends of the shaft member protruding from the connecting portion form a pair of left and right protrusions of the connecting portion. A leg member is formed with a through-slot hole extending through the side surface of the leg member and extending along the longitudinal direction, and a concave strip extending in the longitudinal direction on both side walls of the through-slot hole. A connecting portion is formed in the through-groove hole, and the two ends of the shaft core member projecting from the connecting portion are formed by connecting the tip portions of the inserted support rod and the guide rod so as to be rotatable by the shaft core member. 5. The connecting portion between the support rod and the guide rod is connected to the leg member so as to be slidable along the longitudinal direction of the leg member. The folding table according to any one of the above.   By providing a substantially horizontal through hole communicating with the through groove hole on the outer surface of the leg member and inserting the shaft core member from the outer surface of the leg member through the through hole, the tip of the support rod in the through groove hole The foldable table according to any one of claims 5 to 7, wherein the front end portion of the guide rod and the guide rod are rotatably connected, and both end portions of the shaft core member are disposed in the through-groove hole. .

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