JP3155260U - Folding table - Google Patents

Abstract

A foldable table having excellent lock strength, improved safety, one-touch operation, and excellent operability is provided. The top plate includes a top plate, a leg rotatably provided on the top plate, and a lock member that is provided on the back surface of the top plate and restricts the movement of the leg. The locking member is always urged forward in the direction of the top plate, a slide receiving portion formed with a guide groove comprising a horizontal slot and an engagement hole bent toward the top plate communicating with the horizontal slot. Control lever. The operation lever engages the slide shaft fitted in the engagement hole by the rotation of the operation lever when the leg is in the standing state, the guide slope where the slide shaft slides from the front, the engagement recess where the slide shaft fits An activation claw for escaping from the hole and an operation piece for performing the release operation were provided. [Selection] Figure 5

Description

  The present invention relates to a folding table, and more particularly to a locking structure for legs of a folding table.

  Conventionally, a leg that can be rotated with respect to the back of the top plate is provided, and the leg is rotated from the back of the top plate to stand when in use, and when not in use, the leg is rotated and in close contact with the back of the top plate. A foldable table is used.

  The conventional folding table is provided with a lock mechanism so that the legs are not closed or unfolded when in use or not in use.

As an example of a locking mechanism, the elongated plate is bent at both ends to form a front receiving portion, a rear receiving portion, and a passage, and a thin locking plate is formed with a convex arc-shaped exclusion oblique edge and a convex arc-shaped locking connected thereto. A handle lever is integrally formed below and behind this locking plate, and the front of the locking plate is pivotably mounted on a rotating shaft attached outside the passage. ing.
Furthermore, the locking plate is always protruded to the upper side of the passage by the coil spring, and when the leg is raised by the coil spring, the top of the support is pushed to the rear receiving side through the locking steep edge and the handle lever bulges. Patent Document 1 discloses a lock device for a folding leg for furniture in which the end is pressed toward the top plate and the entire locking plate is sunk from the passage when the handle lever is lowered.
61-32507

  However, the conventional locking device has a structure in which the passage is flat and is locked only by a locking plate pressed by a coil spring. Therefore, when an external force is applied to the locking plate, the lock may be released and the desk may tilt.

  If the spring strength is increased, the lock strength can be maintained, but if the spring strength is increased too much, the operability may be deteriorated and handling may become difficult.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a foldable table that has excellent lock strength, improved safety, can be operated with one touch, and has excellent operability.

  In order to solve the above-mentioned problem, in the device according to claim 1, the top plate and a leg provided on the back surface of the top plate, and provided on the back surface of the top plate so as to be rotatable about the upper part. In a foldable table comprising a locking member that is provided and restricts the movement of the legs, the locking member is a horizontal oblong hole provided substantially parallel to the top plate and an engagement hole bent to the top plate side communicating with the horizontal oblong hole A connecting member having a slide receiving portion formed with a guide groove, a rotating shaft that pivotally supports the leg, and a slide shaft that slides in the guide groove on the other side, and a back surface of the top plate. The operation lever is pivotally supported by a horizontal axis and the front is always urged toward the top plate. The operation lever includes a guide slope on which the slide shaft slides from the front and an engagement recess in which the slide shaft fits. Engage by turning the operating lever when the leg is standing An activation claw for allowing the slide shaft fitted in the hole to escape from the engagement hole and an operation piece for performing the release operation are provided.

  The invention according to claim 2 is characterized in that the activation claw protrudes toward the top plate from a virtual extension line of the guide slope.

  According to the present invention, a foldable table with improved safety and excellent operability can be provided.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front perspective view of the folding table of the present invention in a standing state (use state), and FIG. 2 is a rear perspective view of the folding table of the present invention in a standing state (use state). FIG. 3 is a rear perspective view of the folding table of the present invention in a folded state (stored state). FIG. 4 is a partially enlarged view of FIG.
5 is a rear perspective view of the folding table in the middle of folding, and FIG. 6 is a partially enlarged view of FIG. FIG. 7 is an exploded perspective view of the folding table of the present invention in an upright state (used state), and FIG. 8 is a partially enlarged view of FIG. FIG. 9 is a cross-sectional view taken along the line AA ′ of FIG.

(First embodiment)
As shown in the perspective views of FIGS. 1 to 3, the folding table of the present embodiment is provided with a rectangular top plate that is long on the left and right sides, and provided on the back surface of the top plate so as to be rotatable about the upper part as a rotation center. This is a foldable table comprising a leg 2 and a lock member 3 provided on the back surface of the top board to restrict the movement of the leg.

  The top plate 1 has a rectangular shape extending in the left-right direction, and the legs 2 are pivotally supported at the four corners via corner connecting members 26. The corner connecting member is provided along the corner portion of the top plate, and includes a thick L-shaped outer wall and a flat base portion formed on the inner side of the outer wall. (Figure 4)

  When the legs are folded and accommodated, the height of the folded legs is set to be within the height of the L-shaped outer wall.

  In addition, the corner connecting member is provided with a metal corner horizontal shaft 261 parallel to the lateral direction of the top plate, and the upper portion of the leg is pivotally supported by the corner horizontal shaft 261, and the leg is in an upright state (use state) ) And a folded state (stored state).

Further, the corner connecting member is provided with a plurality of fixing holes, and is formed so that screws can be inserted into the fixing holes and screwed to the top plate or the frame.
A melamine decorative board etc. can be used for a top plate, and a leg can also be rotated with a hinge hinge instead of a corner horizontal axis.

  In addition, by providing the leg lock member 262 on the inside of the corner connecting member, it is possible to prevent inadvertent release of the leg when the leg is stored. The leg lock member can be realized by notching a part of the resin-made corner connecting member and providing a tongue-like lock claw having an upper flange that can move inside.

  The support leg 21 is a hollow support column having a substantially elliptical, circular or rectangular outer shape with long reinforcing bars on the top and bottom. A circular hole is provided in the upper part of the leg so as to penetrate the corner horizontal axis, and a shaft pin of the corner horizontal axis is inserted and fixed to the corner connecting portion.

  A resin leg cap or an adjuster can be provided at the lower end of the leg. Two legs juxtaposed in the short direction of the top plate are connected by a leg bar 25 in the middle. Thereby, the strength can be increased and the legs can be integrated, and the operability at the time of folding and unfolding the legs is also improved. The leg material can be selected from metal, wood or plastic.

  The leg bar 25 is desirably provided at a position of about 5 cm to 15 cm from the top in the leg height direction (from the top plate).

  Similarly to the legs, the leg bars have a hollow shape with a reinforcing bar having a substantially elliptical, circular, or rectangular shape. The strength of the leg 2 is improved by integrating the leg and the leg bar by welding in the case of metal, or by using a horn assembly in the case of wooden.

  Further, as shown in FIGS. 4 to 9, a lock member 3 for restricting the movement of the legs is provided on the back surface of the top board 1. The lock member is large and includes a slide receiving portion 30 having a guide groove, a linear connecting member 4, and an operation lever 35.

  The slide receiving unit 30 includes two side plates 321 and 322 facing each other in a U shape in plan view, a coupling wall 320 coupling the two side plates, and a horizontal bearing 325 and a horizontal shaft 33 provided at positions facing the coupling wall. It has become.

The side plate and the connecting wall are made of a metal thin plate member and have screw receiving pieces parallel to the top plate. The slide receiving part is fixed to the back surface of the top plate or the frame material with screws via screw receiving pieces.
Guide grooves 31 are formed in the two side plates 32 symmetrically. The guide groove includes a horizontal elongated hole 311 provided substantially parallel to the top plate and an engagement hole 312 which communicates with the horizontal elongated hole and is bent from the horizontal elongated hole toward the top plate.

  In addition, although the horizontal bearing showed the example integrated with the slide receiving part, it is also possible to provide independently in a top plate back surface.

  The diameter (height) of the guide groove is approximately the same as the diameter of the slide shaft 42 described later, and can be designed with a margin that allows the slide shaft to move freely. The bending angle of the engagement hole can be set to about 90 to 120 degrees from the horizontal direction.

  Further, a linear connecting member 4 that slides in the guide groove is slidably supported on the slide receiving portion 30.

  The linear connecting member 4 is composed of a connecting plate 43 made of two parallel linear metal pieces and two shafts that connect both ends thereof, and one of the shafts is a rotating shaft 41 that supports the leg, The other shaft is a slide shaft 42 that slides in the guide groove. One rotary shaft is pivotally supported by the leg rail 25 of the leg, and the other slide shaft reciprocates while sliding through the horizontal elongated hole 311 and the engagement hole 312.

  In addition, when the slide shaft is positioned in the engagement hole, it is set so that the legs of the folding table are deployed.

  Although the connecting member has been described using the linear connecting plate 4, the connecting member may be a curved plate or a partially bent connecting plate.

  The connecting member 4 joins the leg 2 and the lock member 3, and is further clamped and held by the operation lever 35 when the leg of the folding table is in the deployed state.

  The operation lever 35 is an operation piece having a substantially U-shaped cross section, and is provided with an operation surface 37 and engagement surfaces 381 and 382 at substantially right angles, and the engagement surfaces face each other substantially in parallel.

  The operation lever is pivotally supported by a horizontal shaft 33 provided on the back surface of the top plate, and the front is always urged toward the top plate by a biasing spring.

  The urging spring is a coil spring provided so that one end is in contact with the back surface of the top plate and the other end is in contact with the inner surface 37 on the rear side of the operation lever. It arrange | positions so that a back side may act in the direction which leaves | separates from a top plate in the direction approaching a board.

  The engaging surfaces 381 and 382 of the operation lever 35 are engaged by the guide slope 351 on which the slide shaft 42 slides from the front, the engagement recess 352 in which the slide shaft fits, and the rotation of the operation lever when the legs are upright. An activation claw 353 for allowing the slide shaft fitted in the mating recess to escape from the engaging recess and an operation piece 354 for performing a releasing operation are provided.

  The guide slope 351 is provided with an inclined surface extending at an acute angle from the tip of the operation surface 37 so that the slide shaft 42 is slid and guided to the engagement recess 352 when the leg is raised.

  The engaging recess 352 is a hole having the same size as that of the slide shaft, and has a margin enough to receive the horizontal shaft.

  The starting claw 353 is a hook-shaped projecting piece that protrudes toward the back side of the top plate from the virtual extension line that extends the guide slope to the engaging recess side. The length is set so as to collide with the slide shaft located in the concavity.

  The operating lever is preferably made of metal from the viewpoint of strength, but a material such as reinforced plastic can also be selected.

  The operation lever and the lock member can be used with a plastic cover (not shown).

  In this embodiment, the leg 2 with the leg frame 25 provided between the support legs 21 has been described, but the leg bar may be omitted, and a structure may be implemented in which the leg is directly provided with a rotation shaft and coupled to the connecting member 4. Is possible.

  The effect of the folding table having the above configuration will be described below.

  First, when assembling the folding table in the folded state (stored state), place the above folding table with the top plate in contact with the floor, and grasp the stored leg or leg rail by hand. Turn toward the outside of the top plate in the longitudinal direction.

  In that case, the connecting member 4 pivotally supported by the leg bar is displaced by the longitudinal axis of the table following the movement of the leg while being pivotally supported by one of the rotating shafts.

  As the connecting member is displaced, the other slide shaft 42 of the connecting member slides while being sandwiched between the guide inclined surface 351 of the operation lever and the horizontal elongated hole of the guide groove in the direction from the horizontal elongated hole to the engaging hole, and the leg is When reaching the assembly state, it falls into the engagement hole 312 of the guide groove. At the same time, it engages with the engaging recess 352 of the operating lever.

  In this standing state, the slide shaft 42 is fitted into one of the engagement holes and the other is fitted into the engagement recess and is clamped from both sides. In addition, since it is firmly held in this state, even if an external force is applied to the leg, the leg is not inadvertently moved or closed, and is firmly assembled.

  Next, when folding the folding table in the standing state (use state), the operation piece 354 is pressed downward (top plate side), and the operation lever 35 is rotated around the horizontal axis. At this time, the slide shaft supported between the engagement recess and the engagement hole is released from the clamping state, and the activation claw provided on the operation lever moves in the opposite direction to the top plate as the operation lever rotates. Rotate. With this turning operation, the slide shaft is kicked up, and the slide shaft is pulled out of the engagement hole and guided to the horizontal long hole.

  Thereafter, the operation piece is released from the pressure and folded with the legs. At that time, the horizontal shaft is unlocked and can be moved in the horizontal direction, so it can be easily folded by simply sliding along the horizontal slot (folding with the legs). Then, the leg is moved to the storage position (FIG. 5), and the leg is fixed by the leg lock member.

  As described above, the folding table of the present invention includes the engagement hole bent to the top plate side, the slide shaft, the engagement recess of the operation lever, and the activation claw. However, even if it is on the back (see Fig. 4), it can be firmly locked to improve safety. In addition, the function of the starting claw allows easy storage even when folded. In addition, it is possible to provide a foldable table with excellent operability in which the legs do not easily fall over even when the lock member is released.

These are the surface side perspective views of the standing state (use condition) of the folding table of this invention. These are the back side perspective views of the standing-up state (use state) of the folding table of this invention. These are the back side perspective views of the folding state (storage state) of the folding table of this invention. FIG. 3 is a partially enlarged sectional view of FIG. FIG. 3 is a rear perspective view of a folding table in the middle of folding. FIG. 4 is a partially enlarged view of FIG. FIG. 4 is an exploded perspective view of the folding table of the present invention in a standing state (used state). FIG. 8 is a partially enlarged view of FIG. FIG. 3 is a cross-sectional view taken along line A-A ′ in FIG. 2.

Top plate 1
Leg 2
Support legs 21
Leg pier 25
Corner connecting member 26
Corner horizontal axis 261
Leg lock member 262
Locking member 3
Slide receiver 30
Guide groove 31
Horizontal slot 311
Engagement hole 312
Side plate 32
Bonding wall 320
Side plate 321,322
Horizontal bearing 325
Horizontal axis 33
Horizontal axis pin 331
Biasing spring 34
Control lever 35
Guide slope 351
Engaging recess 352
Starting claw 353
Operation piece 354
Fixed piece 36
Operation surface 37
Engagement surface 381,382
Connecting member 4
Rotation axis 41
Slide axis 42
Connecting plate 43
Table 5

Claims (2)

A foldable table comprising a top plate, a leg provided on the back surface of the top plate so as to be pivotable about an upper part, and a lock member provided on the back surface of the top plate for restricting the movement of the leg. In this embodiment, the locking member includes a slide receiving portion formed with a guide groove including a horizontal elongated hole provided substantially parallel to the top plate and an engagement hole bent toward the top plate connected to the horizontal elongated hole. The shaft is pivotally supported by a connecting member having a rotating shaft that pivotally supports and a slide shaft that slides in the guide groove on the other side, and a horizontal shaft provided on the back surface of the top plate, and the front is always biased toward the top plate. The operation lever is fitted into the engagement hole by turning the operation lever when the leg is standing and the guide slope where the slide shaft slides from the front, the engagement recess where the slide shaft fits Starting claw that allows the slide shaft to escape from the engagement hole Folding table, characterized in that it comprises an operating piece for performing the release operation. 2. The folding table according to claim 1, wherein the starting claw protrudes toward the top plate side from a virtual extension line of the guide slope.

Images