JP6679883B2 - Furniture with flap top plate - Google Patents

Description

  The present invention relates to furniture with a flap top plate that is used in offices, schools, and the like and that allows the top plate to perform a flap operation from a use posture to a flip-up posture.

  DESCRIPTION OF RELATED ART As furniture with a top board used for a meeting etc. in an office, the furniture with a flap top board which can perform a flap operation | movement from a use posture to a flip-up posture is widely known. In the conventional structure, a shaft plate is fixed to the upper part of the leg body, and a lock claw is engaged with the shaft plate to selectively lock the top plate receiver in the use posture and the flipping posture ( See, for example, Patent Document 1.

  In this type of furniture with a flap top plate, a side cover that closes the space from the side is provided in order to avoid occurrence of a problem due to an object being caught in the space formed between the shaft plate and the top plate receiver. In many cases, the conventional side cover is fixed to the top plate or the top plate receiver and rotates integrally with the top plate or the top plate receiver. However, in such a configuration, there is a problem that many parts of the side cover protrude from the top plate receiver and the appearance is impaired, especially when the top plate is in the use posture.

Japanese Patent No. 5639630

  An object of the present invention is to ensure a good appearance while avoiding a problem caused by an object being caught in a space formed between a shaft plate and a top plate receiver.

  In order to solve the above problems, the furniture with a flap top plate according to the present invention has a configuration as described below. That is, the furniture with a flap top plate according to the present invention is one in which the top plate is supported on a leg through a top plate support mechanism so as to be rotatable between a use position and a flip-up position, The top plate support mechanism has a top wall attached to the lower surface of the top plate, and a top plate receiver having side walls extended from both side edges of the top wall, and the top plate support mechanism is arranged between the side walls of the top plate receiver. Between a shaft plate that pivotally supports the top plate receiver via a main shaft, a top plate receiver that is rotatably supported by the shaft plate via a support shaft to support the top plate, and a side wall of the top plate receiver. And a lock claw which is disposed on the shaft plate and engages with the shaft plate to hold the top plate in a use position or a flip-up position, and a side surface that laterally closes a space formed between the shaft plate and the top plate receiver. A cover, and the side cover is attached to the inner surface of the side wall of the top plate receiver, and is in a flip-up posture. And is configured to be retracted into the receiving the top plate in the use position covers the side of the space Te.

  In such a case, by immersing the side cover in the top plate receiver when the top plate is in the use posture, many parts of the side cover are covered with the top plate receiver to ensure a good appearance. can do.

As an example of a configuration that can easily realize the side cover, the side cover is supported rotatably around the support shaft between an immersion position housed in a top plate receiver and a protruding position that blocks the space from the side . There are things.

  An example of a specific shape of such a side cover is a U-shaped cross-section having left and right side cover bodies and a connecting piece that connects the left and right side covers.

If the side cover described in the previous stage has a folded portion between the upper edges of the left and right side cover bodies and the end edge of the connecting piece, punch a flat plate-like material and bend it at the folded portion. Since the manufacturing method of forming the side cover can be adopted by the manufacturing method, it is possible to manufacture the furniture with the flap top plate having such a side cover at a lower cost without requiring special equipment such as a mold for manufacturing such a side cover. it can.

  In a furniture with a flap top plate including side covers having the left and right side cover bodies and the connecting piece, the top plate receiver projects downward on the lower surface of the upper plate, and the top plate is in a use posture. The side cover is connected between the upper end surface of the shaft plate and a portion other than the protruding part of the top plate of the top plate in the use posture, which has a convex portion that abuts against the upper end surface of the shaft plate. If the space for accommodating the piece is formed, the top plate can be stably held in the use posture without the top plate receiver and the connecting piece of the side cover interfering with each other.

The side cover is rotatably supported around the support shaft between an immersive position housed in the top plate receiver and a protruding position that laterally closes the space, and rotates in the protruding position direction. In a furniture with a biased top plate that is urged, as an example of a configuration for stably holding the side cover in the retracted position when the top plate is in the use posture, the shaft plate has the side face in the use posture. An example is one that includes a locking portion that abuts on the cover and holds the side cover at the retracted position.

On the other hand, the side cover is rotatably supported around the support shaft between the retracted position housed in the top plate receiver and the protruding position that closes the space from the side, and in the protruding position direction. In the furniture with a flap top plate that is rotationally biased, the shaft plate may include a pin for abutting the edge of the side cover to hold the side cover in the protruding position in the flipped-up posture. In this case, the top cover and the pins are used to prohibit the side cover in the protruding position from rotating in both directions, thereby effectively preventing the space formed between the shaft plate and the top receiver from being exposed. You can

  ADVANTAGE OF THE INVENTION According to this invention, a favorable appearance can be ensured, avoiding the generation | occurrence | production of the trouble by the thing pinched in the space formed between a shaft plate and a top-plate receiver.

The perspective view which shows the use posture of the furniture with a flap top plate which concerns on one Embodiment of this invention. The side view which shows the use posture of the furniture with a flap top plate which concerns on the same embodiment. The perspective view which shows the flip-up posture of the furniture with the flap top plate which concerns on the same embodiment. The side view which shows the flip-up posture of the furniture with the flap top plate which concerns on the same embodiment. The front view which expands and shows the principal part at the time of taking the flip-up posture of the furniture with a flap top plate which concerns on the same embodiment. AA sectional drawing in FIG. BB sectional drawing in FIG. CC sectional drawing in FIG. The disassembled perspective view which shows the furniture with the flap top plate which concerns on the same embodiment. The disassembled perspective view which shows the top board support mechanism which concerns on the same embodiment. The disassembled perspective view which shows the top board support mechanism which concerns on the same embodiment. The front view which expands and shows the principal part at the time of taking the use posture of the furniture with a flap top plate which concerns on the same embodiment. FIG. 13 is a sectional view taken along line D-D in FIG. 12. FIG. 13 is a sectional view taken along line EE in FIG. 12. F-F sectional drawing in FIG. FIG. 3 is an operation explanatory view of the top plate support mechanism according to the same embodiment. FIG. 3 is an operation explanatory view of the top plate support mechanism according to the same embodiment. FIG. 3 is an operation explanatory view of the top plate support mechanism according to the same embodiment. The development view of the side cover concerning the embodiment. The perspective view of the side cover concerning the embodiment. Operation | movement explanatory drawing of the side cover which concerns on the same embodiment. Operation | movement explanatory drawing of the side cover which concerns on the same embodiment. Operation | movement explanatory drawing of the side cover which concerns on the same embodiment.

  An embodiment of the present invention will be described below with reference to the drawings.

  As shown in FIGS. 1 to 18, this embodiment is a case where the present invention is applied to furniture with a flap top plate called a flap table.

  As shown in FIGS. 1 to 4 and 9, the furniture with a flap top plate includes a pair of left and right legs 1A and 1B, a top plate 2 arranged on the legs 1A and 1B, and the top plate. A pair of left and right top plate support mechanisms 3A and 3B for supporting the two legs 1A and 1B so that the legs can be flapped between the use posture (U) and the flipping posture (F), and both tops. The plate supporting mechanisms 3A and 3B are provided with a connecting beam 4. The left and right top plate support mechanisms 3A and 3B and the connecting beam 4 that connects the top plate support mechanisms 3A and 3B together form a mechanical unit 5 that is the core of the platform. Hereinafter, each of the components will be described in detail.

<Leg>
As shown in FIGS. 1 to 4 and 9, the left leg 1A includes a leg base 11 extending in the front-rear direction, a column 12 standing upright from a central portion in the longitudinal direction of the leg base 11, and the leg base. The casters 14 are provided at the front and rear ends of the shaft 11, respectively.

  As shown in FIGS. 1 to 4 and 9, the right leg 1B has a bilaterally symmetrical shape with the left leg 1A described above, and the same or corresponding parts are designated by the same reference numerals. The description is omitted.

<Top plate>
As shown in FIG. 1, FIG. 3, and FIG. 9, the top plate 2 has a rectangular shape elongated in the left-right direction, and has the same configuration as a normal wooden top plate, for example. A reinforcing member 8 is attached to the lower surface 2a of the top plate 2 between the two ends of use. Then, the top plate receivers 32 constituting the top plate support mechanism 3 are attached to both left and right ends of the lower surface 2a of the top plate 2.

<Top support mechanism>
As shown in FIGS. 5 to 15, the left top plate support mechanism 3A includes a shaft plate 31 attached to the leg 1A, and a top plate that is axially supported by the shaft plate 31 and receives the top plate 2 on its upper surface. A receiver 32 and a lock claw 33 for selectively locking the top plate receiver 32 in the use posture (U) and the flip-up posture (F) are arranged. That is, the top plate support mechanism 3A includes a shaft plate 31 attached to the leg 1A and having a head portion 312 in an upper half thereof, and a top plate receiver 32 axially supported by the head portion 312 of the shaft plate 31. The top plate receiver 32 is provided with a lock claw 33 for locking the top plate.

  As shown in FIGS. 5 to 15, the shaft plate 31 has a mounting portion 311 mounted on the inner surface of the leg body 1 using a bolt 310, and extends from the mounting portion 311 to extend upwardly from the top plate receiver 32. And a head portion 312 for axially supporting the shaft via a support shaft 313.

  As shown in FIGS. 5 to 7 and 10 to 13, the head portion 312 of the shaft plate 31 includes a head portion main body 303, a first hook receiver 301, and a second hook receiver 302. .

  The head portion body 303 receives the top plate 2 that has reached the use posture (U) by the upper end surface 303 a via the top plate receiver 32.

  The inner surface of the head portion body 303 of the first claw receiver 301 is integrally provided on the crocodile, and a horizontal lock portion 331 of the lock claw 33, which will be described later, is engaged with the top plate 2 in the use posture ( It has the 1st locking part 301a which locks to U). The front surface 301x of the first claw receiver 301 is flush with the front surface 303b of the head body 303. The first locking portion 301a has a concave shape that is open to the front surface 301x and the inner side surface 301y.

  The second claw receiver 302 is integrally provided on the inner side surface 301y of the first claw receiver 301, and a flip-up lock portion 332 of the lock claw 33, which will be described later, is engaged to bounce the top plate 2. It has a second locking portion 302a that locks in the raised posture (F). In addition, the second claw receiver 302 is provided with an eave shape integrally projecting on the inner side surface 301y of the first claw receiver 301 with the front surface 302x being set rearward of the front surface 303b of the head portion body 303. belongs to. The second locking portion 302a has a V-shape in a side view, which is recessed in the upper end surface 302b of the second claw receiver 302.

  Here, the shaft plate 31 including the head part 312 including the head part body 303, the first claw receiver 301 and the second claw receiver 302, and the mounting part 311 is made of aluminum die cast. It is molded integrally. The first locking portion 301a and the second locking portion 302a are deviated from each other in the thickness direction (horizontal direction). More specifically, a first claw receiver 301 including the first engaging portion 301a is provided such that the inner surface of the head portion body 303 is adjacent to the crocodile, and the first claw receiver 301 is further provided. A second pawl receiver 302 including the second engaging portion 302a is provided adjacent to the inner surface 301y. The upper end surfaces 301b and 302b of the claw receivers 301 and 302 are flush with the upper end surface 303a of the head body 303.

  As shown in FIG. 5 to FIG. 8 and FIG. 10 to FIG. 15, the top plate receiver 32 extends from the upper plate 321 attached to the lower surface 21 of the top plate 2 and both side edges of the upper plate 321. The pair of side plates 322 and 323 are provided on both sides of the head portion 312.

  As shown in FIGS. 5 to 8 and FIGS. 10 to 15, the upper plate 321 is a flat plate that is in close contact with the lower surface 21 of the top plate 2, and is attached to the top plate 2 using mounting screws (not shown). ing. In addition, a convex portion 321a protruding downward is provided at the center of the lower surface of the upper plate 321 in the longitudinal direction. In the use posture (U), the convex portion 321a strikes the upper end surface 303a of the head portion body 303 and the upper end surface 301b of the first claw receiver 301 in the head portion 312. Further, in the use posture (U), a space C3 is formed between the portion of the upper plate 321 other than the convex portion 321a and the upper end surface of the head portion 312 of the shaft plate 31.

  As shown in FIGS. 5 and 10 to 12, the side plates 322 and 323 extend from both side edges of the upper plate 321 and are located on both sides of the head portion 312. Between the both side plates 322, 323 of the top plate receiver 32 and the head portion 312, gaps C1, C2 having a predetermined width are formed. The both side plates 322, 323 are provided with a support shaft through hole 325 through which the support shaft 313 penetrates, and a lock claw drive shaft through hole 326 through which a lock claw drive shaft 333 supporting the lock claw 33 penetrates. ing.

  As shown in FIGS. 5 to 7 and FIGS. 10 to 14, the lock claw 33 includes a horizontal lock portion 331 having a sickle shape in a side view, which engages with the first engagement portion 301a, and the second engagement portion. An arm-shaped flip-up lock portion 332 that engages with the portion 302a is integrally provided, and the lock pawl drive shaft 333 is integrally rotatably mounted at the base end portion. The horizontal lock portion 331 and the flip-up lock portion 332 are displaced from each other in the thickness direction. That is, the base end portion of the flip-up lock portion 332 is formed integrally with one side surface of the base end portion of the horizontal lock portion 331 so as to be adjacent thereto. Further, the flip-up lock portion 332 is longer than the horizontal lock portion 331, and the tip portion thereof can engage with the second locking portion 302a. When the top plate 2 is in the flip-up posture (F), the lock pawl drive shaft 333 has an upper end surface 303a of the head part body 303 and the pawl receiver 301, as compared to when the top plate 2 is in the use posture (U). The upper end surfaces 301b and 302b of 302 are arranged at a position separated upward. The lock pawl 33 is urged to rotate by the coil spring 38 in the pawl receivers 301 and 302 of the shaft plate 31. In the use posture (U), the horizontal lock portion 331 of the lock pawl 33 engages with the first locking portion 301a of the first pawl receiver 301. On the other hand, in the flip-up posture (F), the flip-up lock portion 332 engages with the second locking portion 302a of the second pawl receiver 302. In addition, in FIG. 5, FIG. 10, FIG. 11 and the like, the tip of the flip-up lock portion 332 is arranged so that the tip of the flip-up lock portion 332 is separated from the second engagement portion 302a so that the shape of the second engagement portion 302a can be clearly seen. Although it is shown in a slightly disengaged state, in the actual flip-up posture (F), the tip end of the flip-up lock portion 332 falls into the second locking portion 302a and engages with it. Here, the thickness dimension of the horizontal lock portion 331 and the width dimension of the first claw receiver 301 are set to be substantially the same. Further, the thickness dimension of the flip-up lock portion 332 and the width dimension of the second pawl receiver 302 are set to be substantially the same. A drive projection 339 is integrally provided at a position of the lock claw 33 which is eccentric from the lock claw drive shaft 333. The drive projection 339 is adapted to receive an operation force transmitted from the operation lever 37 for unlocking operation via the advancing / retreating member 39. 5 to 7 and 10 to 14, the lock claw 33 has a pattern.

  The operation lever 37 is a plate-like member that is installed between the side plates 322 and 323 at one longitudinal end of the top plate receiver 32, that is, the front end thereof, and a bearing portion that allows the shaft 370 to be rotatably inserted at the base end thereof. In addition to having 371, a finger hook portion 372 is provided at the tip edge. Both ends of the shaft 370 are supported by the side walls 322 and 323 of the top plate receiver 32 so as not to be pulled out. The operation lever 37 is supported by the shaft 370, and a non-operation position (N) that closes the lower surface of the front end of the top plate receiver 32 and an operation position (M) that the operation end side is separated from the top plate receiver 32. It can rotate between and. A torsion coil spring (not shown) is attached to the shaft 370 as a biasing element for self-returning the operation lever 37 to the non-operation position (N). The operating lever 37 is connected to the drive projection 339 of the lock claw 33 via the advancing / retreating member 39.

  The advancing / retreating member 39 connects the operation lever 37 and the lock claw 33, and has a linear member main body 391 and a bent portion 392 that is bent outward from the base end of the member main body 391. And a folding-back portion 393 provided so as to be folded back at the tip of the member body 391. Then, the bent portion 392 is pivotally attached to the eccentric position of the operation lever 37, and the drive projection 339 of the lock claw 33 is slid into a slit 394 formed between the member main body 391 and the folded portion 393. I am involved as much as possible. The bent portion 392 is axially attached to a portion near the base end of the operation lever 37 in a posture in which the bent portion 392 is parallel to the shaft 370. The relationship among the advancing / retreating member 39, the operating lever 37, and the lock claw 33 is set as follows. First, when the lock claw 33 is in the initial position (S) while the operation lever 37 is held in the non-operation position (N), the precursor drive protrusion 339 is located inside the slit 394 of the advancing / retreating member 39. It is located in the vicinity of the end 394a, and when the operating lever 37 is rotated from the non-operating position (N) to the operating position (M), the drive protrusion 339 contacts the rear end 394a of the slit 394. The lock claw 33 is rotated by being contacted and biased toward the lock release position (R). On the other hand, when the lock claw 33 is rotated from the initial position (S) toward the unlock position (R) while the operation lever 37 is held at the non-operation position (N), the lock claw 33 The dimensions of each part are set so that the drive protrusion 339 of 33 loosens in the slit 394 and the turning force of the lock claw 33 is not transmitted to the operation lever 37.

  The top support mechanism 3A includes a first front cover 34 and a second front cover provided on the top receiver 32 so as to close the space formed between the shaft plate 31 and the top receiver 32. A cover 35 and a side cover 36 are provided.

  The first front cover 34 is a plate-shaped member that is provided adjacent to the rear side of the operation lever 37 and between the side plates 322 and 323 of the top plate receiver 32. The first front cover 34 is in the form of a strip that closes the space formed between the side plates 322 and 323 of the top plate receiver 32 from the front side. A recess 34a for facilitating the operation is provided, and elastic claws 341 that are elastically engaged with the engagement recesses 327 provided on the side plates 322 and 323 of the top plate receiver 32 are provided on both side edges thereof. There is. A bearing portion 342 for pivotally supporting the second front cover 35 is provided at the rear end of the first front cover 34. Note that the first front cover 34 is omitted in FIGS. 3, 5, and 12.

  The second front cover 35 is located in the vicinity of the center of the top plate receiver 32 in the longitudinal direction, and has a strip 351 at the base end for supporting the bearing 342 of the first front cover 34. It is a member of the shape. The second front cover 35 is configured to close the space formed between the shaft plate 31 and the top plate receiver 32 from the front side when the top plate 2 is in the flip-up posture (F). Further, the second front cover 35 is configured to hang from the bearing portion 342 of the first front cover 34 by its own weight when the top plate 2 is in the use posture (U). Note that the second front cover 35 is omitted in FIGS. 3, 5, and 12.

The side cover 36 is disposed between the side plates 322 and 323 of the top plate receiver 32, and closes a space formed between the shaft plate 31 and the top plate receiver 32 from the side surface. More specifically, the side surface cover 36 is attached to the inner surfaces of the side plates 322 and 323 of the top plate receiver 32, covers the side of the space in the flip-up posture (F), and in the use posture (U). It is constructed so that it can be immersed in the top plate receiver 32. The side cover 36 is rotatably supported around the support shaft 313 between a retracted position (B) housed in the top plate receiver 32 and a protruding position (T) that closes the space from the side. There is . Specifically, a boss portion 315 is formed on an opening end surface of a shaft hole 314 for inserting the support shaft 331 of the shaft plate 31, and a boss receiving hole 36a formed at a base end portion of the side surface cover 36. Is rotatably fitted onto the boss portion 315. The side surface cover 36 has a left and right side surface cover main body 361 and a connecting piece 362 connecting the left and right side surface cover main bodies 361 with each other and is U-shaped in cross section. As shown in FIGS. 19 and 20, the side cover 36 has a folded portion 363 between the upper edge of the left and right side cover bodies 361 and the end edge of the connecting piece 362. In the use position (U), the connecting piece 362 is housed in a space between a portion of the top plate 321 of the top plate receiver 32 other than the convex portion and the upper end surface of the shaft plate 31. That is, in this use posture (U), the connecting piece 362 abuts on the upper end surface which is the locking portion of the shaft plate 31, and the side surface cover 36 is held at the retracted position (B). . On the other hand, in the flip-up posture (F), the edge of the side cover 36 hits the pin 319 provided on the shaft plate 31, and the side cover 36 is held at the protruding position (T). .

The side cover 36 is made by bending an intermediate component 360 as shown in FIG. The intermediate component 360 has a configuration in which the left and right side cover main bodies 361 and a connecting piece 362 that connects the left and right side cover main bodies 361 via the folded-back portions 363 are two-dimensionally developed, and are formed by injection molding. It is made in one. The side covers 36 are made by folding the left and right side cover bodies 361 of the intermediate component 360 inwardly by 90 ° with respect to the connecting piece 362 with the folding portion 363 as a boundary. Since the left and right side cover bodies 361 of the side cover 36 are inserted into the gaps C1 and C2 between the shaft plate 31 and the side plates 322 and 323 of the top plate receiver 32, the side cover bodies 361 are flat. It does not return to the normal posture, that is, the posture approaching the intermediate component 360.

  As shown in FIGS. 2, 4 and 9 to 11, the right top plate support mechanism 3B has a left-right symmetric shape with the left top plate support mechanism 3A described above, and is the same or corresponding. The same reference numerals are given to the parts and the description thereof will be omitted.

<Connecting beam>
As shown in FIG. 3 and FIG. 9, the connecting beam 4 includes a beam main body 41 formed by cutting a pipe material having a circular cross section into a predetermined length, and a female screw rigidly connected to both ends in the beam main body 41. And a fixed nut plate (not shown) having a hole. Then, the mechanical beam 5 is configured by connecting the left and right top plate support mechanisms 3A and 3B to each other by the connecting beam 4. That is, as shown in FIG. 6, FIG. 7, FIG. 13 and FIG. 14, the bolts 42 penetrating the left and right shaft plates 31 from the outside are screwed into the fixed nut plates of the connecting beam 4 to thereby The shaft plates 31 of the top plate support mechanisms 3A and 3B are connected to each other.

<Mechanical unit>
As shown in FIGS. 3 and 9, the mechanical unit 5 includes a pair of left and right top support mechanisms 3A and 3B, and the connecting beams that connect the shaft plates 31 of the top support mechanisms 3A and 3B. 4 and an operation interlocking beam 511 that connects the lock claw drive shafts 333 and 333 of the top plate support mechanisms 3A and 3B.

  The lock state by the lock claw 33 is released by operating any one of the operation levers 37 provided on the left and right top plate support mechanisms 3A and 3B from the non-operation position (N) to the operation position (M). The posture of the top plate 2 can be changed.

  More specifically, this mechanical unit 5 is provided to one of the operation lever 37 and a pawl interlocking mechanism 51 that interlocks the lock pawls 33 of the left and right top plate support mechanisms 3A and 3B synchronously in both forward and reverse directions. The operating force transmitted to the lock pawl 33 but the movement of the lock pawl 33 is not transmitted to the other operating lever 37, and the operating lever 37 is set to the non-operating position. The screw recoil spring (not shown) serving as a biasing element for self-returning to.

  The pawl interlocking mechanism 51 includes the lock pawl drive shaft 333 provided on each lock pawl 33, and the operation interlocking beam 511 that connects the lock pawl drive shafts 333 to each other in a synchronously rotatable manner. .

  The operation force transmission mechanism 52 includes the advancing / retreating member 39 that advances and retracts in response to the movement of the operating lever 37 from the non-operating position (S) to the operating position (R), the advancing / retreating member 39, and the lock claw 33. And a one-way engaging portion 521 for transmitting only one-way movement of the advancing / retreating member 39 to the lock claw 33. Specifically, the one-way engaging portion 521 is provided between the member main body 391 and the folded-back portion 393 at the distal end portion of the advancing / retreating member 39, the slit 394 having the closed rear end 394 a, and the lock claw 33. And a drive protrusion 339 movably engaged with the slit 394.

  Here, the operation lever 37, the advancing / retreating member 39, the lock claw 33, and the lock claw drive shaft 333 are provided on the left and right top plate support mechanisms 3A and 3B, respectively, as described above. The operation interlocking beam 51 is arranged between the left and right top plate receivers 32 so that the lock claw drive shafts 333 provided on the left and right top plate support mechanisms 3A, 3B can be integrally rotated.

  Next, the operation of the furniture with the flap top plate will be described.

  First, as shown in FIGS. 3 to 11, when the top plate 2 is in the flip-up posture (F), the tip of the flip-up lock portion 332 of the lock claw 33 is the second locking portion 302 a of the shaft plate 31. And the top plate 2 is prohibited from tilting forward. In addition, in the illustrated example, in order to clearly show the shape of the second engaging portion 302a and the like, the top plate 2 is shown in a state in which the top plate 2 is completely vertically erected slightly beyond the normal flip-up posture (F). Actually, the tip of the flip-up lock portion 332 of the lock claw 33 is engaged with the second locking portion 302a in the flip-up posture (F) in which the top plate 2 is slightly tilted forward from the illustrated position. . When the operating lever 37 provided on either the left or right top plate support mechanism 3A, 3B is turned forward from this flip-up posture (F), the lock claw 33 corresponding to the operating lever 37 is moved to the initial position (S). To the unlock position (R). Then, when one of the lock claws 33 rotates, the turning power is transmitted to the other lock claw 33 via the operation interlocking beam 51, and the other lock claw 33 also moves from the initial position (S) to the unlocked position (R). Rotate to. When both lock claws 33 rotate in the unlocked position (R) direction, the flip-up lock parts 332 of these lock claws 33 are disengaged from the second locking part 302a, and the locked state of the top plate 2 is released. It Therefore, the top plate 2 can be rotated from the flip-up position (F) to the use position (U). When the top plate 2 reaches the use position (U) with the operation of the operation lever 37 stopped, the horizontal lock portion 331 of the lock claw 33 that is urged to rotate by the coil spring 38 causes the first lock of the shaft plate 31 to move. The top plate 2 is locked in the use position (U) by fitting in the stopper 301a. Even when the operation of the operation lever 37 is stopped in the middle of reaching the use position (U) from the flip-up position (F), the flip-up lock portion 332 of the arm-shaped lock claw 33 has the shaft plate 31. Since it moves while being guided by the front end portion of the second pawl receiver 302, the lock pawl 33 can reach the use posture (U) in an appropriate posture without completely returning to the initial position (S). When one of the operating levers 37 is rotated downward in such a use posture (U), the horizontal lock portions 331 of both the lock claws 33 are disengaged from the first locking portions 301a, and the top plate 2 is removed. The locked state is released.

  As described above, by operating either the left or right operation lever 37, the locked state of the left and right top plate support mechanisms 3A, 3B can be controlled. In this embodiment, FIGS. As shown in FIG. 6, when the lock state is controlled by operating one of the left and right operation levers 37, the other operation lever 37 does not operate and is held at the non-operation position (N). That is, when the operation lever 37 of the left top plate supporting mechanism 3A is operated from the locked state shown in FIG. 17, the left and right lock claws 33 are interlocked and moved to the unlock position (R) to lock. However, the operating lever 37 of the right top plate supporting mechanism 3B does not operate and is held in the non-operating position (N). More specifically, when the operating lever 37 of the left top plate supporting mechanism 3A is operated, both the left and right lock claws 33 rotate in the unlocked position direction. Due to the existence of the portion 521, it is not transmitted to the operation lever 37 of the right top plate supporting mechanism 3B. Therefore, the operation lever 37 of the right top plate support mechanism 3B does not operate and is held in the non-operation position (N). When the operation lever 37 of the right top plate support mechanism 3B is operated from the locked state shown in FIG. 18 as shown in FIG. 18, the operation lever 37 of the left top plate support mechanism 3A does not operate by the same mechanism. It is held in the non-operating position (N).

  On the other hand, the side cover 36 operates as follows.

  First, as shown in FIG. 21, when the top plate 2 is in the flip-up posture (F), one edge of the side surface cover 36 is abutted against the top plate 2, while the other edge is as described above. The side cover 36 abuts the pin 319 provided on the shaft plate 31, and the side cover 36 is held at the protruding position (T). When the top plate 2 moves from this state toward the use posture (U), the side cover 36 is biased by the top plate 2 and moves toward the retracted position (B). Then, when the top plate 2 reaches a predetermined position between the position where the top plate 2 takes the flipping posture (F) and the position where the top plate 2 takes the use posture (U), as shown in FIG. The side surface cover 36 reaches the retracted position (B) by hitting the upper end surface serving as the locking portion of the shaft plate 31. The side cover 36 remains held in the retracted position (B) while the top plate 2 moves beyond the predetermined position toward the use posture (U). Then, when the top plate 2 is in the use posture (U), the side cover 36 is retracted into the top plate receiver 2 as shown in FIG.

  On the contrary, when the top plate 2 moves from the use posture (U) toward the flipping posture (F), the side cover 36 serves as the shaft plate until the top plate 2 reaches the predetermined position. It remains in contact with the upper end surface serving as the locking portion of 31, that is, is retained in the retracted position (B). When the top plate 2 reaches the predetermined position, one edge of the side cover 36 hits the top plate 2 as shown in FIG. Then, while the top plate moves from the predetermined position toward the flip-up posture (F), one edge of the side surface cover 36 is urged by the top plate 2 in a state of abutting against the top plate 2 and protrudes. Move toward position (T).

  With such a configuration, since the side cover 36 is held in the retracted position (B) when the top plate 2 is in the use posture (U) and is recessed in the top plate receiver 2, Many parts of the side cover 36 are covered by the top plate receiver 3. That is, with the configuration of this embodiment, a good appearance can be secured.

  Further, according to the configuration of this embodiment, the following configuration can be obtained. That is, with the side cover 36 having its base end pivotally supported by the top plate receiver 32, the retracted position (B) housed in the top plate receiver 32, the shaft plate 31, and the top plate receiver 32. Since the space formed between the side cover 36 and the space 32 can be rotated between the side cover 36 and the projecting position (T), the side cover 36 is retracted from the projecting position (T) by the top plate 2. It can be driven to position (B) or vice versa.

The side cover 36 has a U-shaped cross-section and includes left and right side cover bodies 361 and a connecting piece 362 that connects the left and right side cover bodies 361 to each other. Since the folded-back portion 363 is provided between the edge of the connecting piece 362, a flat plate-shaped material is punched out and bent at the folded- back portion 363 to form the intermediate component 360. It is possible to employ a manufacturing method in which the side cover 36 is arranged in the top plate receiver 32 by arranging it in the gap between the top plate receiver 32 and the side cover 36. Therefore, special equipment such as a mold is not required for manufacturing the side cover 36, and the furniture with the flap top plate having the side cover 36 can be manufactured at a lower cost.

  The top plate receiver 32 has a convex portion 321a on the lower surface of the upper plate 321 that protrudes downward and abuts on the upper end surface of the shaft plate 31 when the top plate 2 is in the use posture (U). In the posture (U), a space for accommodating the connecting piece 362 of the side cover 36 is provided between a portion of the top plate 321 of the top plate 32 other than the convex portion 321a and the upper end surface of the shaft plate 31. Since the top plate receiver 32 and the connecting piece 362 of the side cover 36 do not interfere with each other, the top plate 3 can be stably held in the use posture (U).

  The side cover 36 is urged to rotate in the protruding position (T) direction by its own weight, and the upper end surface of the shaft plate 31 is the side surface when the top plate 2 is in the use posture (U). Since the side cover 36 hits the cover 36 and holds the side cover 36 in the retracted position (B), the side cover 36 is stably retained in the retracted position (B) when the top plate 2 is in the use posture (U). To be done.

  Then, the side cover 36 is urged to rotate in the protruding position (T) direction by its own weight, and the shaft plate 31 moves in the state where the top plate 2 is in the flip-up posture (F). Since the pin 319 for hitting the edge of the side cover 36 and holding the side cover 36 at the projecting position (T) is provided, the side cover 36 at the projecting position (T) is pivoted in both directions. The plate 2 and the pin 319 can be prohibited to effectively prevent the space formed between the shaft plate 31 and the top plate receiver 32 from being exposed.

  The present invention is not limited to the embodiment described above.

  For example, in the above-described embodiment, the side cover covers the retracted position housed in the top plate receiver, the shaft plate and the top plate receiver, with the base end portion rotatably supported about the support shaft. Although it is configured to be rotatable between a protruding position that closes a space formed therebetween from the side, it may be slidable between the retracted position and the protruding position, for example. .

  In addition, the shape of the side covers may of course be other than the U-shaped cross section having the left and right side cover bodies and the connecting pieces that connect the left and right side covers.

  On the other hand, in a side cover having left and right side cover bodies and a connecting piece for connecting the left and right side cover bodies, a hinge portion is provided between an upper edge of the left and right side cover bodies and an end edge of the connecting piece. It is not always necessary.

  Further, as in the above-described embodiment, the lower surface of the top plate of the top plate receiver is provided with a convex portion that projects downward and abuts the upper end surface of the shaft plate when the top plate is in the use posture, and the top plate is used in the use posture. Instead of forming a space capable of accommodating the connecting piece of the side cover between the portion of the upper plate of the receiver other than the convex portion and the upper end surface of the shaft plate, the side cover is formed on the upper plate of the top plate. Even in the mode in which the concave portion capable of accommodating the connecting piece is provided, the top plate can be stably held in the use posture without interference between the top plate receiver and the connecting piece of the side cover.

  Further, the portion for hitting the side cover and holding the side cover in the retracted position in the state where the top plate is in the use posture does not need to be the locking portion provided on the shaft plate, and the top plate flips up It is not necessary that the portion for hitting the edge of the side cover in the state of 1) to hold the side cover at the protruding position is a pin provided on the shaft plate.

  In addition, various modifications may be made without departing from the spirit of the present invention.

1A, 1B ... Legs 2 ... Top plate 3A, 3B ... Top plate support mechanism 31 ... Shaft plate 313 ... Spindle 32 ... Top plate receiver 321 ... Top plate 322 ... Side plate 33 ... Lock claw 36 ... Side cover C ... (Shaft) (Space formed between the plate and the top receiver) (U) ... Use posture (F) ... Bounce posture

Claims (7)

A furniture with a flap top plate which is supported on a leg through a top plate support mechanism so as to be rotatable between a use position and a flip-up position,
The top plate support mechanism has a top plate attached to the lower surface of the top plate, and a top plate receiver having side plates extending from both side edges of the top plate, and a top plate receiver arranged between the side plates of the top plate receiver. A shaft plate that pivotally supports the top plate receiver via a support shaft, and a lock that is arranged between the side plates of the top plate receiver and that engages with the shaft plate to hold the top plate in a use position or a flip-up position. A claw and a side cover that laterally closes a space formed between the shaft plate and the top plate receiver,
A flap configured such that the side cover is attached to an inner surface of a side plate of the top plate cover to cover a side of the space in a flip-up posture and to be retractable in the top plate receiver in the use posture. Furniture with a top plate. The side cover, flap before Symbol claim 1, wherein is rotatably supported around the support shaft between a retracted position to be housed on the top plate receives a projecting position for closing the space laterally Furniture with a top plate. The furniture with a flap top plate according to claim 1 or 2, wherein the side cover is a U-shaped cross-section having left and right side cover bodies and a connecting piece that connects the left and right side covers. The flap top furniture according to claim 3, wherein the side cover is provided with a folded-back portion between an upper edge of the left and right side cover bodies and an end edge of the connecting piece. The top plate receiver has a convex portion on the lower surface of the upper plate that projects downward and abuts the upper end surface of the shaft plate when the top plate is in the use posture. The flap top plate according to claim 3 or 4, wherein a space capable of accommodating the connecting piece of the side cover is formed between a portion of the upper plate other than the convex portion and an upper end surface of the shaft plate. furniture. The side cover is urged to rotate in the protruding position direction,
The furniture with a flap top plate according to claim 2, wherein the shaft plate has a locking portion for abutting the side cover to hold the side cover in the retracted position in the use posture. The side cover is urged to rotate in the protruding position direction,
The furniture with a flap top plate according to claim 2, wherein the shaft plate includes a pin for abutting the edge of the side cover to hold the side cover at the protruding position in the flip-up posture.

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