JP5684537B2 - Table with curtain - Google Patents

Description

  The present invention relates to a table with a curtain plate provided with a curtain plate on the lower side of the top plate. More specifically, the posture of the leg is changed between when the top plate is used and when it is not used. The present invention relates to a curtain support structure for a table with curtains.

  Tables with curtain plates are already provided that support the top plate so that it can rotate about the horizontal axis with respect to the legs, and the posture of the top plate can be changed between use and non-use. Yes. In this type of table with a curtain, the upper end of the curtain is supported so that it can rotate about the horizontal axis with respect to the lower surface of the ceiling, and the attitude of the curtain is changed with respect to the ceiling. Is possible. Specifically, mounting pieces are attached to both the curtain plate and the top plate by screws, and a rotary shaft member is provided between the mounting pieces, and the curtain plate side mounting piece and the top plate side mounting are provided. The piece is supported so as to be relatively rotatable about the rotary shaft member.

  By applying such a support structure, it is possible to provide a table with a curtain plate that can change the posture of the top board without the curtain plate interfering with other parts such as legs. According to this table with a curtain plate, the top plate can be used in the same manner as a normal one by placing it in a horizontal orientation, while the top plate is arranged in a vertical orientation. Thus, it is possible to reduce the space required when storing (nesting) back and forth with each other and improve the storage efficiency (see, for example, Patent Document 1).

JP 2010-136996 A

  By the way, in a structure in which the mounting piece is attached to the curtain plate, a curtain plate having a thickness sufficient to screw a screw is required. For this reason, the weight of the table with a curtain plate increases significantly, which may lead to problems such as disadvantages in terms of portability. Further, if the screw hole of the curtain plate is not provided at an accurate position, it is difficult to support it on the top plate. For this reason, high dimensional accuracy is required in the manufacturing stage, and the burden of management costs is also increased.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a table with a curtain plate capable of changing the posture of the top plate without causing a situation in which the weight is remarkably increased or a burden on management costs is increased. And

In order to achieve the above object, a table with a curtain according to the present invention includes a leg body, a top board supported by the leg body, and a lower part of the top side of the top board. in curtain plate with table and a curtain plate covering the frequency, causes rotatably supported around the horizontal axis of the top plate relative to the leg, the support shaft member along the horizontal direction on the lower surface of the top plate The guide rail is integrally formed along the horizontal direction on the inner surface of the curtain plate, and the block member is guided in a state where movement in a direction away from the curtain plate is restricted with respect to the guide rail. It is arranged to be slidable along the extending direction of the rail, and the support shaft member is rotatably supported by the block member.

  In the above-mentioned table with a curtain, the guide rail includes a pair of protrusions extending along the horizontal direction, and the block member can be slid between the protrusions. It is made to fit.

  In the above-mentioned table with a curtain plate, the present invention is characterized in that the block member rotatably supports the support shaft member at a portion between the pair of protrusions. .

  According to the present invention, in the above-described table with a curtain plate, a contact portion projects from the inner surface of the curtain plate, and a receiving portion that faces the contact portion is attached to an attachment piece that supports the support shaft member. And when the top plate is disposed along the horizontal direction and the curtain plate is disposed along the vertical direction, the tip of the contact portion is brought into contact with the receiving portion.

  Further, the present invention is characterized in that the table with a curtain plate described above is provided with urging means for constantly urging the tip of the abutting portion and the receiving portion toward each other.

  According to the present invention, the block member is disposed on the guide rail provided integrally with the curtain plate, and the support shaft member provided on the top plate is rotatably supported by the block member. There is no need to screw them together. Accordingly, a thin plate can be used as the curtain plate, and there is no fear of causing a significant increase in weight. In addition, since the block member is slidable with respect to the guide rail, it is possible to easily perform the assembly work without requiring high dimensional accuracy, and there is no possibility of increasing the management cost.

  Further, according to the present invention, since the slide member is fitted between the pair of projecting portions, the assembling work is facilitated.

  In addition, according to the present invention, the curtain plate rotates around the support shaft member disposed in the portion between the pair of protrusions, and thus the projection amount of the curtain plate decreases from the rotation center, and the support shaft The space for rotating the curtain around the member can be reduced. Thus, for example, even when the gap between the top plate and the curtain plate is set to be small so that the finger is not inserted, the interference with the top plate can be prevented when the curtain plate is rotated. become.

  Further, according to the present invention, the abutment portion of the curtain plate when the top plate is horizontally disposed can be defined by bringing the abutment portion of the curtain plate into contact with the receiving portion of the mounting piece.

  Further, according to the present invention, the curtain plate is always urged in the direction in which the abutting portion and the receiving portion of the attachment piece abut, so that the posture of the curtain plate is not inadvertently changed.

FIG. 1 is a cross-sectional side view showing a main part of a table with a curtain plate according to an embodiment of the present invention. FIG. 2 is an exploded perspective view of the curtain plate applied to the table with curtain plate shown in FIG. FIG. 3 is a perspective view showing a block member and a support shaft member applied to the table with a curtain plate shown in FIG. FIG. 4 is a view showing a mounting portion between a curtain plate and a block member applied to the table with the curtain plate shown in FIG. FIG. 5A is a perspective view of a state in which a top plate applied to the table with a curtain plate shown in FIG. 1 is arranged in a posture along the horizontal direction. FIG. 5B is a perspective view of a state in which the front side of the top plate applied to the table with a curtain plate shown in FIG. FIG. 6 is a side view showing a state in which the curtain table shown in FIG.

  Hereinafter, preferred embodiments of a table with a curtain according to the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 shows a main part of a table with a curtain plate according to an embodiment of the present invention. The table with a curtain illustrated here is configured on the assumption that a large number of people gather and use such as a classroom in an elementary school, a junior high school or a high school, or a conference room in a company. 5-2 and FIG. 6, a pair of left and right legs 10 are provided.

  The leg 10 is formed by joining the upper ends of two pipes 11 and 12 made of a metal such as aluminum or steel to the left and right, and a connecting body 13 in which each upper end extends in the horizontal direction. Are connected to each other. Pipes (hereinafter referred to as “inner leg pipes 11”) located inside the legs 10 extend on a straight line so as to be parallel to each other. On the other hand, a pipe located outside the leg 10 (hereinafter referred to as “outer leg pipe 12”) is bent so as to be gradually separated from the inner leg pipe 11 as it goes downward. On the other hand, it spreads back and forth. Casters 11a and 12a for rolling on the floor surface are attached to the lower ends of the inner leg pipe 11 and the outer leg pipe 12, respectively.

  Like the leg body 10, the connecting body 13 is formed by a pipe made of metal such as aluminum or steel into a columnar shape having a circular cross section, and is connected to the lower outer circumferential surface located slightly inward from both ends thereof. The left and right legs 10 are attached so as to extend in the same direction.

  Brackets 14 are respectively provided in portions of the connecting body 13 that are located outward from the connecting portion of the leg 10. The bracket 14 is formed by integrally forming a rotation support portion 14a surrounding the connection body 13 and a top plate mounting portion 14b extending radially outward from the outer peripheral surface of the rotation support portion 14a. It is possible to rotate around the axis of the coupling body 13 via 14a. Although not clearly shown in the drawing, a defining means for defining the position of the bracket 14 with respect to the connecting body 13 is configured between the one bracket 14 and the connecting body 13. The defining means includes a first position where the top plate mounting portion 14b of the bracket 14 extends toward the front side with respect to the connecting body 13, and the top surface thereof is substantially horizontal, and the top plate mounting portion 14b is located upward. Each of the positions is maintained when it is arranged at the second position where it jumps up. Specifically, a locking pin (not shown) is movably disposed on the bracket 14 and can be connected by appropriately changing the locking state of the locking pin (not shown) with respect to the connecting body 13. The bracket 14 is configured to be rotatable with respect to the body 13 and to be selectively stopped at each of the first position and the second position.

  The two brackets 14 positioned on the left and right of the coupling body 13 are configured to be symmetrical with each other, and hold the top plate 20 between the top plate attachment portions 14b. The top plate 20 has a rectangular plate shape, the width along the left-right direction is larger than the distance between the top plate mounting portions 14b of the bracket 14, and the depth along the front-rear direction is the top plate of the bracket 14. It is formed in a dimension larger than the extending length of the mounting portion 14b. When the bracket 14 is maintained at the first position, the top plate 20 is disposed so that the upper surface thereof is substantially horizontal as shown in FIGS. When moved to the position, as shown in FIGS. 5-2 and 6, the front edge of the top plate 20 is flipped up and arranged in a posture along the vertical direction, and the depth dimension in the front-rear direction can be reduced. Is possible.

  As shown in FIG. 1, the top plate 20 is provided with a curtain plate 30 in a lower area of a portion located on the back side of the leg body 10 when arranged horizontally. As shown in FIGS. 5A and 5B, the curtain plate 30 has a width along the left-right direction that has a large distance between the pair of legs 10, and a height along the vertical direction of the curtain 10. The main plate portion 31 has a rectangular plate shape that is shorter than ½ of the total height of the top plate 20. It covers the gap secured.

  As shown in FIGS. 1 and 2, the curtain plate 30 has a plurality of protrusions 32, 33, 34 on one surface (hereinafter referred to as “inner surface 31 a”) of a main plate portion 31 having a flat plate shape. Is provided. The ridges 32, 33, and 34 are thin plate-like projecting portions formed in a series from one end to the other end along the left-right direction of the curtain plate 30. In the present embodiment, the main plate portion 31 is configured symmetrically with respect to the bisection plane along the left-right direction, and the outer ridge portion 32, the inner ridge portion 33, The contact protrusions 34 are provided with appropriate intervals.

  The outer protrusion 32 is inclined in a direction gradually approaching the inner protrusion 33 as the distance from the inner surface 31 a of the main plate 31 is increased, and then the most distant portion 32 a is substantially parallel to the main plate 31. Is bent. The outer ridge 32 is provided with an auxiliary ridge 35 in the middle. The auxiliary ridge 35 is a single protrusion provided on the surface of the outer ridge 32 that faces the inner ridge 33, and, like the outer ridge 32, one of the auxiliary ridges 35 extends along the left-right direction of the curtain plate 30. It is formed in a series from one end to the other end. A screw hole forming groove 35 a is formed in the auxiliary protrusion 35 along the left-right direction of the curtain plate 30. The screw hole constituting groove 35 a is an opening having a circular shape with a small cross section, and is open at a portion facing the inner protrusion portion 33.

  The inner ridge 33 forms a guide rail between itself and the outer ridge 32, and protrudes from the inner surface 31 a of the main plate 31 in a substantially right angle direction, and then in a direction approaching the outer ridge 32. The portion bent away from the main plate portion 31 is bent in a crank shape and further bent in a direction away from the outer ridge portion 32. The protruding height of the inner ridge 33 from the main plate portion 31 is the same as that of the outer ridge 32.

  The contact protrusion 34 has a cross-sectional shape that is symmetric with the inner protrusion 33, and forms a contact portion 34 a at the most distant portion from the main plate portion 31.

  In the present embodiment, the curtain plate having the main plate portion 31 and the outer ridge portion 32, the inner ridge portion 33, the abutting ridge portion 34, and the auxiliary ridge portion 35 by extruding a synthetic resin material. 30 is configured integrally.

  The curtain plate 30 configured as described above is supported on the lower surface of the top plate 20 via the mounting piece 40 and the block member 50. As shown in FIGS. 1 to 4, the mounting piece 40 includes a mounting base 41 having a flat plate shape having a screw insertion hole 41 a and a shaft support portion 42 that is bent and extends from one end of the mounting base 41. The top plate has a substantially L shape, and the top of the mounting base 41 faces the front side of the top plate 20 and the shaft support 42 protrudes from the bottom surface of the top plate 20 via the mounting base 41. It is attached to the left and right ends of 20.

  The shaft support portion 42 of each mounting piece 40 is provided with a support shaft member 43 and a buffer body (receiving portion) 44. The support shaft member 43 is a columnar member that extends along the left-right direction of the top plate 20 after protruding from the surface located on the back side of the top plate 20 in the shaft support portion 42. The shaft centers are formed so as to coincide with each other and to be parallel to the shaft center of the coupling body 13. However, the two attachment pieces 40 located on the left and right are configured to be symmetrical with each other, and are attached so that the tips of the support shaft members 43 are separated from each other. The buffer body 44 is formed in a thin disk shape by a member having a function of reducing an impact when an object comes into contact, such as an elastic member, and is disposed on the same surface as the support shaft member 43 in the shaft support portion 42. It is provided.

  The block member 50 is slidably fitted in a state in which movement in a direction away from the main plate portion 31 is restricted between an outer ridge portion 32 and an inner ridge portion 33 provided on the curtain plate 30. It is a member and is disposed at both left and right ends of the curtain plate 30. More specifically, the block member 50 includes an inner surface 31a of the main plate portion 31, an auxiliary protrusion 35 of the outer protrusion 32, a bent protruding end 32a of the outer protrusion 32, and an inner protrusion. A rectangular parallelepiped main block 50a fitted between the protruding end 33a of the portion 33, a first fitting protrusion 50b, a second fitting protrusion 50c, and a second fitting protrusion 50c protruding from the outer surface of the main block 50a. The three fitting protrusions 50d are integrally formed. The first fitting protrusions 50b assist the main plate part 31 and the outer protrusions 32 of the curtain plate 30 when the main block part 50a is fitted between the outer protrusions 32 and the inner protrusions 33. It is a part fitted in a gap defined between the ridges 35. The second fitting protrusion 50c is a protruding end of the auxiliary protrusion 35 and the outer protrusion 32 when the main block 50a is fitted between the outer protrusion 32 and the inner protrusion 33. It is the part that is inserted into the gap defined. When the main block 50a is fitted between the outer protrusion 32 and the inner protrusion 33, the third fitting protrusion 50d is formed between the main plate 31 and the base end of the inner protrusion 33. It is a part fitted in a gap defined between them. While the block member 50 having the first fitting protrusion 50b, the second fitting protrusion 50c, and the third fitting protrusion 50d is restricted from moving in the direction away from the main plate portion 31, the outer protrusion. It is possible to slide in the extending direction of the portion 32 and the inner ridge portion 33.

  Each block member 50 is formed with a shaft fitting hole 50e at a portion having the same axial center. The shaft fitting hole 50e is formed in a portion which is substantially at the center of the cross section in the main block portion 50a located between the outer ridge portion 32 and the inner ridge portion 33. The member 43 is rotatably fitted.

  Further, a pressing spring (biasing means) 60 is interposed between the mounting piece 40 and the block member 50. As shown in FIG. 3, the pressing spring 60 is a coil spring wound around a portion of the support shaft member 43 located between the mounting piece 40 and the block member 50. The pressing spring 60 has one end abutting against the mounting piece 40, and the other end mounted in a mounting hole 50f provided in the block member 50. In FIG. It is configured to always rotate counterclockwise with respect to 40. Reference numeral 36 in the figure denotes a cover plate that is attached to both ends of the curtain plate 30 and in which each inner surface 31 a abuts against the block member 50.

  In the table with a curtain plate configured as described above, when the top plate 20 is disposed horizontally as shown in the solid line of FIG. 1 and FIGS. The part between 10 can be covered with the curtain plate 30 hanging from the top plate 20. In this case, since the curtain plate 30 is always kept in contact with the buffer body 44 of the mounting piece 40 via the contact protrusion 34 by the pressing spring 60, even when an external force is applied, the curtain plate 30 is maintained. Returns to the state where the position of the head is suspended from the top board 20. Further, since the cover plates 36 provided at both ends of the curtain plate 30 are in contact with the block member 50, the position of the curtain plate 30 supported by the top plate 20 is not shifted in the left-right direction.

  On the other hand, the above-mentioned defining means (not shown) is appropriately operated to rotate the top plate 20 around the axis of the connecting body 13 and jump the front side of the top plate 20 as shown in FIGS. 5-2 and 6. In the case where it is raised and arranged in the vertical direction, the lower end of the curtain plate 30 comes into contact with the leg body 10. However, in this case, the lower end edge of the curtain plate 30 rotates about the support shaft member 43 toward the back side, and the rotation of the top plate 20 is not hindered. Therefore, as shown in FIG. 6, the depth dimension of the top plate 20 is reduced, and the storage efficiency is improved when a plurality of tables with curtains are stored back and forth with the legs 10 crossing each other. And a large space can be secured in a classroom or a conference room.

  When the top plate 20 is disposed horizontally again, as shown in FIG. 5A, the curtain plate 30 is returned to the suspended state by the pressing spring 60, and the legs 10 are covered with each other.

  Here, according to the table with the curtain plate, when the curtain plate 30 is attached to the top plate 20, the attachment base 41 of the attachment piece 40 is attached to the top plate 20 with the screws S. When the block member 50 is fitted between the outer ridge 32 and the inner ridge 33, which are guide rails, it is possible to support 30 and screwing is unnecessary. Accordingly, it is not necessary to secure a plate thickness sufficient for screwing the curtain plate 30, and a thin plate shape can be applied, and there is no possibility of causing a significant increase in weight. In addition, the block member 50 can slide with respect to the curtain plate 30. Therefore, for example, when the attachment piece 40 attached to the curtain plate 30 is screwed to the lower surface of the top plate 20, a screw insertion hole 41a of the attachment piece 40 and a screw hole (not shown) previously formed in the top plate 20 are provided. Even if they are misaligned, the screws can be reliably screwed together by appropriately sliding the block member 50. As a result, the assembly work can be easily performed without requiring high dimensional accuracy in the component manufacturing stage, and there is no risk of increasing the management cost.

  In the above-described embodiment, since the support shaft member 43 is disposed at a portion between the pair of protrusions 32 and 33 in the block member 50, when the curtain plate 30 is rotated. The turning radius can be set small. Therefore, for example, since a foreign object such as a finger is not inserted into the gap between the top plate 20 and the curtain plate 30, even when the gap between the two is set small, interference with the top plate 20 is caused when the curtain plate 30 is rotated. There exists an effect that it can prevent. However, the present invention is not limited to this. For example, a part of the block member 50 is protruded to the outside from between the protrusions 32 and 33, and the support shaft member 43 is disposed on the protruding part. Also good.

  Moreover, in embodiment mentioned above, although the block member 50 is made to fit between a pair of protrusion parts 32 and 33, this invention is not limited to this. For example, the same function and effect can be obtained by forming a unique protrusion on the curtain plate with a tip portion having a larger cross section than the base end portion, such as a T shape, and fitting a block member thereto. It is possible to play.

  Furthermore, in the above-described embodiment, the main plate portion 31 and the projections 32, 33, 34, and 35 of the curtain plate 30 are integrally formed by extrusion molding, but this is not necessarily limited thereto. Further, the material of the curtain plate 30 need not be a synthetic resin material.

DESCRIPTION OF SYMBOLS 10 Leg 20 Top plate 30 Curtain plate 32 Outer ridge part 33 Inner ridge part 34a Contact part 35 Auxiliary ridge part 40 Attachment piece 43 Support shaft member 44 Buffer body 50 Block member 50e Shaft fitting hole 50f Mounting hole 60 Pressing spring

Claims (5)

A leg, a top plate supported on the leg, the curtain plate with table and a curtain plate covering the lower region of the top plate portion which is a back end portion below said top plate,
The top plate is supported so as to be rotatable about a horizontal axis with respect to the legs, and a support shaft member is supported along the horizontal direction on the lower surface of the top plate,
A guide rail is integrally formed on the inner surface of the curtain plate along the horizontal direction, and the block member extends in a state in which movement in a direction away from the curtain plate is restricted with respect to the guide rail. Slidable along the direction,
A table with a curtain plate, wherein the support shaft member is rotatably supported by the block member.   The said guide rail is provided with a pair of protrusion part extended along the horizontal direction, The said block member is slidably fitted between these protrusion parts, The Claim 1 characterized by the above-mentioned. Table with curtains.   The table with a curtain plate according to claim 2, wherein the block member rotatably supports the support shaft member at a portion between the pair of protrusions.   An abutting portion projects from the inner surface of the curtain plate, and a receiving portion that faces the abutting portion is provided on an attachment piece that supports the support shaft member, the top plate is along a horizontal direction, and the curtain The table with a curtain plate according to any one of claims 1 to 3, wherein when the plate is disposed along a vertical direction, a tip of the contact portion is brought into contact with the receiving portion. .   The table with a curtain plate according to claim 4, further comprising an urging unit that constantly urges the tip of the abutting portion and the receiving portion toward a direction close to each other.

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