JP2015085045A - Table - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a table suitable for personal computer operation which can be stably moved only by slightly lifting a front part of a top plate, has excellent stability in contact with a floor, does not interfere with a lower limb space of a seated person, has a simple structure, and can be manufactured at low cost.SOLUTION: A table comprises: a pair of right and left horizontal leg rods 1 facing a cross direction; a pair of right and left leg posts 2 each erected on the upper face of the rear end part of a horizontal leg rod 1; a top plate 5 supported by the upper end parts of both leg posts 2; casters 11 each provided in the rear end of the horizontal leg rod 1 so that a wheel 14 is positioned behind an extension face extending to the lower side of the rear face of the leg post 2 and that the lower end of the wheel 14 and the lower face of the horizontal leg rod 1 become substantially the same height or slightly different in height; and floor contacting members 18 each provided in the lower face of the front end part of each of the horizontal leg rods 1.

Description

  The present invention relates to a table that can be easily moved.

  In this type of conventional table, a pair of left and right pedestals are erected on a pair of left and right horizontal legs that are provided with casters at the front and rear ends, respectively, and the upper ends of both pedestal columns Generally, a plate is supported (see, for example, Patent Documents 1 to 3).

  In addition, there is a caster provided at the rear end of the pair of left and right legs in the leg frame so that a connecting rod connecting the front ends of the pair of left and right legs is in contact with the floor (for example, Patent Documents). 4).

Japanese Patent No. 4818692 Japanese Patent No. 4053815 JP 2003-009956 A JP 2005-160911 A

  However, in the case where four casters are provided on the front, rear, left and right (Patent Documents 1 to 3), the table may be moved unintentionally due to vibration during an earthquake, collision with other objects, and the like. For this reason, the caster must be provided with a lock mechanism, which causes problems such as a complicated structure and high manufacturing costs.

  In the case where the casters are provided only in the rear part (Patent Documents 1 to 3), the front part of the pair of left and right legs and the connecting rods connecting them interfere with the lower limb space of the seated person, when sitting or moving the table In addition to being a hindrance to the table, the front part of the table is lifted and the stability when moving is poor, and the table may fall backward.

  In view of the above-mentioned problems of the conventional technology, the present invention can move the table stably only by slightly lifting the front part of the top plate, and also has good stability during floor contact, In addition, it is an object of the present invention to provide a table suitable for personal computer operation that does not obstruct the lower limb space of a seated person and has a simple structure and can be manufactured at low cost.

According to the present invention, the above problem is solved as follows.
(1) A pair of left and right horizontal leg rods facing in the front-rear direction, a pair of left and right leg columns erected on the upper surface of the rear end of each horizontal leg rod, and a top plate supported by the upper ends of the both leg columns And at the rear end of each horizontal leg, the wheel is positioned behind the rear surface of the rear side of the pedestal, and the lower end of the wheel is substantially level with the lower surface of the horizontal leg. Or a caster provided with a slightly different height, and a floor contact member provided on the lower surface of the front end of each horizontal leg.

According to such a configuration, the table can be stably moved without overturning by rolling the wheels of the casters on the floor surface by slightly lifting the front part of the top plate.
At this time, since the wheels of the casters are located behind the rear ends of the rear ends of the horizontal legs and the rear surfaces of the pedestals, the center of gravity of the entire table is maintained even when the front part of the top plate is lifted. The possibility of moving forward from the wheels is small, and stability during movement can be ensured.
When the floor contact member is brought into contact with the floor, the table does not move due to friction between the floor contact member and the floor surface, and does not move due to collisions with other objects, and is stable on the floor surface. Can be installed well.
Moreover, it does not disturb the leg space of the seated person.
Also, the structure is simple and can be manufactured at low cost.

(2) In the above paragraph (1), each pedestal is tilted forward and is erected on the upper surface of the rear end of the horizontal heel. Make sure the wheels are positioned.

  According to such a configuration, the stability of the table when the front portion of the top plate is lifted is further increased.

(3) In the above paragraph (1) or (2), a rear bearing piece that forms one component of the caster is projected at the rear end of each horizontal leg rod, and this wheel is used to adjust the lateral direction of the wheel. Try to support the shaft that faces you.

  According to such a configuration, since the bearing piece forming one component of the caster can be formed integrally with the horizontal leg rod, the number of parts can be reduced, and the structure can be simplified and manufactured at low cost. can do.

(4) In the above item (3), the bearing piece protrudes in the center in the left-right direction at the rear end of each horizontal leg so that it is behind the rear end of each horizontal leg and on both sides of the bearing piece. In addition, by forming a pair of left and right wheel housing steps whose left and right widths are substantially equal to the left and right widths of the respective wheels, and by arranging the wheels in the wheel housing steps, the outer surface of each wheel is placed on a horizontal leg. It should be almost aligned with the side face.

  According to such a configuration, the outer surface of each wheel is substantially aligned with the side surface of the horizontal leg rod in the front-rear direction, so that the wheel does not protrude sideways from the horizontal leg rod and prevents collision with other objects. And can improve the appearance.

(5) In any one of the above items (1) to (4), by providing concave stepped portions that are open on both sides and below on both side surfaces from the rear part to the vicinity of the front part of each horizontal leg, The cross-sectional shape of the middle part in the front-rear direction of each horizontal leg is set to be substantially T-shaped.

  According to such a configuration, while maintaining the strength of the horizontal leg, the weight can be reduced, and the heavy feeling when viewed from the side is reduced, and the toe of the shoe is placed on the side of the horizontal leg. It is possible to prevent contact.

(6) In any one of the above items (1) to (5), the upper surface of each horizontal leg is an inclined surface that is inclined downward toward the front, whereby each horizontal leg is thinned toward the front. To do.

  According to such a configuration, the amount of upward protrusion of the front portion of the horizontal leg can be reduced to prevent the seated person's feet from coming into contact with this portion, and the appearance of the horizontal leg can be improved. Can be.

  According to the present invention, the table can be stably moved by slightly lifting the front part of the top board, and the stability during installation is good, and the structure of the seat is not hindered and does not hinder the leg space. It is possible to provide a table that can be manufactured easily and inexpensively.

It is the perspective view which looked at 1st Embodiment of the table of this invention from diagonally forward. Similarly, it is the perspective view seen from diagonally backward. Similarly, it is a side view. Similarly, it is a plan view. Similarly, it is a bottom view. It is a vertical side view along the VI-VI line of FIG. It is a vertical front view which follows the VII-VII line of FIG. It is an expanded vertical side view of a horizontal leg part and the lower part of a pedestal along the VIII-VIII line of FIG. It is a side view of 2nd Embodiment of the table of this invention. It is a disassembled perspective view which shows the relationship between the bracket and auxiliary | assistant top plate in 2nd Embodiment of the table of this invention.

Hereinafter, a first embodiment of the table of the present invention will be described with reference to FIGS.
As shown in FIGS. 1 to 3, this table is erected such that the pedestal 2 is slightly tilted forward from the rear end portion (which may be an intermediate portion) of the horizontal leg 1 facing in the front-rear direction. The rear ends of a pair of left and right top plate support brackets (hereinafter simply referred to as brackets) 4 and 4 facing the front and lower sides are fixed to the upper portions of the pair of left and right legs 3 and 3 that are substantially L-shaped in a side view. The brackets 4 and 4 support the top plate 5 facing the front and lower side.
As shown in FIGS. 4 and 5, the top plate 5 has a trailing edge protruding rearward in a gentle arc shape, a front edge recessed in a gentle arc shape rearward, and corners of the four corners. Is almost square with chamfered arc.

  By making the upper surface 1a of each horizontal leg 1 into an inclined surface that inclines downward toward the front, each horizontal leg 1 is gradually made thinner toward the front. The amount of upward protrusion of the front portion can be reduced, and the foot of the seated person can be prevented from coming into contact with this portion, and the appearance of the horizontal leg 1 can be improved.

  Each pedestal 2 is erected on the upper surface of the rear end of each horizontal leg 1 so as to be substantially perpendicular to the upper surface 1 a of each horizontal leg 1.

As shown in FIG. 3, the downward inclination angle α1 of the upper surface 1a of the horizontal leg 1, the forward inclination angle α2 of the pedestal 2, and the downward inclination angle α3 of the top plate 5 are substantially the same or possible. , The upper surface 1a, the pedestal 2 and the top plate 5 of the horizontal leg 1 are substantially U-shaped in a side view.
By doing so, the pedestal 2 can be erected at right angles to the upper surface 1a of the horizontal leg 1 and the bracket 4 and the top plate 5 can be attached to the pedestal 2 at right angles. Can be manufactured.

  Specifically, as shown in FIG. 8, a pair of front and rear screw holes 6 and 6 are provided on the inner surface slightly above the lower end of the pedestal 2 having an oval cylindrical body having a long cross-sectional shape in the front-rear direction. The plate 7 is fixed so as to face the direction perpendicular to the central axis of the pedestal 2, and a portion below the mounting plate 7 in the pedestal 2 is orthogonal to the upper surface 1 a at the upper rear end of the horizontal leg 1. A pair of front and rear screw insertion holes 9, 9 provided in the horizontal leg 1 so as to be fitted into the small-sized portion 8 a of the stepped protrusion 8 projecting upward as described above and penetrate through the stepped protrusion 8. By tightening the upper portions of the bolts 10, 10 inserted from below into the screw holes 6, 6 of the mounting plate 7, and tightening, the pedestal 2 is placed on the upper surface of the rear end portion of the horizontal leg 1 and its upper surface 1 a. It is firmly fixed so as to form a substantially right angle.

  The outer shape of the small-sized portion 8 a of the stepped protrusion 8 is substantially complementary to the inner shape of the leg column 2, and the outer shape of the large-sized portion 8 b of the stepped protruding portion 8 below is the outer shape of the leg column 2. It has almost the same shape.

A caster 11 is provided at the rear end of each horizontal leg 1.
The caster 11 includes a bearing piece 12 projecting rearward in a substantially semicircular shape when viewed from the side at the center in the left-right direction at the rear end of each horizontal leg 1 and the rear end of each horizontal leg 1. A pair of left and right wheels 14, 14 disposed in a pair of left and right wheel housing steps 13, 13 formed on the rear and on both sides of the bearing piece 12, and substantially through the center of the bearing piece 12, It consists of a shaft 15 that pivotally supports both wheels 14, 14 on both sides.

  The left and right width of each wheel housing step 13 is substantially the same as the left and right width of each wheel 14 in the caster 11, and by arranging the wheel 14 in this wheel housing step 13, the outer surface of each wheel 14 is The side surface of the horizontal leg 1 is substantially aligned in the front-rear direction so that it does not protrude outward from the side surface of the horizontal leg 1.

  Further, each wheel 14 is positioned rearward of the downwardly extending surface of the rear surface of the pedestal 2 tilting forward, and the lower end of the wheel 14 protrudes slightly below the lower surface of the horizontal leg 1. In this way, each wheel housing step 13 is disposed.

Each wheel 14 may be disposed in each wheel accommodating step 13 so that the lower end of the wheel 14 is positioned substantially at the same level as or slightly above the lower surface of the horizontal leg 1.
In such a case, since the lower surface of the horizontal leg 1 is in contact with the floor surface, the support of the table is more stable, and when the front part of the top plate 2 is lifted, the lower surface of the horizontal leg 1 is separated from the floor surface, The table can be moved easily.

  A step surface 13 a formed between the side surface of the bearing piece 12 in each wheel housing step 13 and the rear end of the side surface of each horizontal leg 1 is centered on the shaft 15 of the wheel 14 and the outer periphery of the wheel 14. The arc surface has a radius of curvature slightly larger than the radius of the surface.

On both side surfaces from the rear part to the vicinity of the front part of each horizontal leg 1, there are provided recessed step portions 16, 16 that are open in both sides and downwards in the front-rear direction. As shown in FIG. 7, the cross-sectional shape of the intermediate portion in the direction is substantially T-shaped.
As shown in FIG. 3, the rear end portions of the recessed step portions 16, 16 are formed in an arc shape in a side view and are directed downward, and are formed in an arc shape in a bottom view as shown in FIG. 5. Heading towards, it has a gentle curved surface shape.

  The upper edge of the intermediate portion of each recessed step 16 is parallel to the upper surface 1a of each horizontal leg 1, and the front end of each recessed step 16 is arcuate in side view as shown in FIG. The circular boss portion 1b is formed on the lower surface of the front end portion of each horizontal leg 1 in the downward direction.

A screw hole 17 facing upward is provided at the center of the lower surface of the boss portion 1b, and an adjuster bolt 19 having a circular floor contact member 18 provided at the lower end is screwed into the screw hole 17.
By rotating the height adjusting adjuster 20 composed of the floor contact member 18 and the adjuster bolt 19, the floor contact member 18 is moved forward and backward from the lower surface of the front end of each horizontal leg rod 1, whereby each horizontal leg rod The height of the front end of 1 can be adjusted.

  By adjusting the height of the front end portion of each horizontal leg 1, not only the horizontal leg 1 but also the entire table including the pedestal 2 and the top plate 5 can be rotated around the axis 15 of the wheel 14 in the caster 11. The downward inclination angle of the top board 5 can be finely adjusted.

  Instead of the adjuster 20, for example, only a floor contact member (not shown) made of a non-slip pad material may be attached to the lower surface of the front end portion of each horizontal leg 1.

  As shown in FIGS. 2 and 5 to 7, between the upper ends of the left and right pedestals 2, 2, there is a horizontal connecting rod 21 extending in the left-right direction that forms an oval cylindrical body having a long cross-sectional shape in the vertical direction Has been.

  The bracket 4 having the rear end portion fixed to the upper portion of each pedestal 2 has a substantially triangular shape in a side view in which the upper side is inclined downward toward the front and the lower side is substantially horizontal. A substantially horizontal auxiliary top plate 22 having a substantially semicircular arc shape in a plan view has a mounting piece 22a erected from the linear inner end thereof in contact with the inner side surface of the bracket 4, and a pair of front and rear bolts and nuts 23 , 23, and attached so as to protrude outward from the side end of the top plate 5 through the lower part of the bracket 4.

  A circular recessed step 24 for receiving a cup is provided in the approximate center of the upper surface of the auxiliary top plate 22. A plurality of arc-shaped notches 25 are provided on the peripheral edge of the recessed step 24. By providing this notch 25, it is possible to easily press the auxiliary top plate 22, and it is possible to prevent dust or the like from accumulating at the corner of the recessed step 24.

Since this table is configured as described above, the wheel 14 of the caster 11 is rolled onto the floor (not shown) by slightly lifting the front part of the top plate 5 and the table is turned over. And can be moved stably.
At this time, since the wheel 14 of the caster 11 is positioned behind the rear end of the rear end of the horizontal leg 1 and the rear surface of the pedestal 2, the table can be lifted even if the front part of the top plate 5 is lifted. The possibility that the entire center of gravity moves forward from the wheels 14 of the casters 11 is small, and stability during movement can be ensured.

When the floor contact member 18 is brought into contact with the floor, the table does not move unintentionally due to friction between the floor contact member 18 and the floor surface due to vibration during an earthquake or collision with other objects. It can be installed stably on the top.
In addition, the leg space of the seated person is not obstructed. In addition, the structure is simple and can be manufactured at low cost.

  Furthermore, since the auxiliary top plate 22 is not attached to the lower surface of the top plate 5, but is attached to the bracket 4 that supports the top plate 5, the auxiliary top plate is stably and horizontally supported regardless of the inclination angle of the top plate. And it is simple in structure. In addition, since the top plate is inclined forward and downward, it is easy to put an arm on the top plate, and even if a personal computer is operated for a long time, it is less likely to get tired.

FIG. 9 shows a second embodiment of the table of the present invention. Note that the same or similar members as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted (the same applies to the third embodiment).
In the second embodiment, the bracket 4 and the top plate 5 are substantially horizontal.

The auxiliary top plate 22 is parallel to the top plate 5, the mounting piece 22 a is brought into contact with the outer surface of the bracket 4, and is fixed with a pair of front and rear bolts and nuts 23, 23. It is attached to the bracket 4 so as to protrude outward from the side end of the bracket.
Other structures are the same as those in the first embodiment.

  Even with the structure as in the second embodiment, the same effects as the basic effects of the first embodiment can be obtained.

FIG. 10 shows the relationship between the bracket and the auxiliary top plate in the third embodiment of the table of the present invention.
In the third embodiment, the top plate mounting piece 4b is bent at a right angle at the upper end of a vertical side piece 4a having a substantially triangular shape in side view similar to that in the first embodiment. The side piece 4a has a pair of front and rear mounting holes 25 and 26 positioned on a straight line L1 parallel to the top plate mounting piece 4b, and a mounting hole 27 positioned below the rear mounting hole 26. Is provided.
The mounting hole 27 is located on a straight line L2 that forms a rearward downward inclination angle α3 that is the same as the downward inclination angle α3 of the top plate 5 shown in FIG. To the mounting holes 25 and 26 at the same distance.

  Therefore, as shown in FIG. 9, the bracket 4 is fixed to the pedestal 2 so that the top plate mounting piece 4b as the upper edge is horizontal, and the top plate 5 is horizontally supported by the top plate mounting piece 4b. When the auxiliary top plate 22 is horizontal, the mounting piece 22a is brought into contact with the outer surface of the side piece 4a, the bolt 23a of the bolt / nut 23 is inserted into the mounting holes 25, 26, and the nut 23b is inserted into the bolt 23a. The auxiliary top plate 22 can be attached to the bracket 4 so as to be parallel to the top plate 5 and fastened to the bracket 4 as shown in FIG. When the plate mounting piece 4b is fixed to the pedestal 2 so as to incline forward and downward, and the top plate 5 is supported by the top plate mounting piece 4b in a forward and downward inclined state, the auxiliary top plate 22 is made horizontal and the mounting piece 22a side piece a top plate 5 that inclines forward and downward by abutting the outer surface of a, inserting the bolt 23a of the bolt / nut 23 into the mounting holes 25, 27, and screwing the nut 23b from the tip of the bolt 23a to tighten. On the other hand, the auxiliary top plate 22 can be mounted horizontally on the bracket 4.

  That is, the mounting piece 22a that stands up from the inner end of the auxiliary top plate 22 is attached to the bracket 4 at a required angle with respect to the top plate 5 that is inclined forward and downward, and the mounting position that is parallel to the top plate 5 Since the mounting position is adjustable, the bracket 4 and the auxiliary top plate 22 are common to both the type of supporting the top plate 5 horizontally and the type of supporting the top plate 5 by tilting the top plate 5 forward and downward. Can be used.

The present invention is not limited only to the above-described embodiment, and can be implemented in the following modified mode, for example, without departing from the scope of the claims.
(1) The rear end portion of the horizontal leg rod 1 is formed in a bifurcated shape in a plan view to form a pair of left and right bearing pieces (not shown), and one wheel is disposed therebetween.
(2) The recessed step 24 is omitted from the auxiliary top plate 22
(3) A standing edge is provided on the outer peripheral edge of the auxiliary top plate 22 to prevent the object from falling.

DESCRIPTION OF SYMBOLS 1 Horizontal leg 1a Upper surface 1b Boss part 2 Leg pillar 3 Leg 4 Top plate support bracket 4a side piece 4b Top plate attachment piece 5 Top plate 6 Screw hole 7 Mounting plate 8 Stepped protrusion 8a Small part 8b Large part 9 Screw insertion hole 10 Bolt 11 Caster 12 Bearing piece 13 Wheel housing step 13a Step surface 14 Wheel 15 Shaft 16 Recessed step 17 Screw hole 18 Floor contact member 19 Adjuster bolt 20 Adjuster 21 Lateral connecting rod 22 Auxiliary top plate 22a mounting piece 23 Bolt / Nut 23a Bolt 23b Nut 24 Recessed Step 25 Notch 25, 26, 27 Mounting Hole α1, α2, α3 Angle L1, L2 Straight Line

Claims (6)

A pair of left and right horizontal legs facing forward and backward,
A pair of left and right pedestals erected on the upper surface of the rear end of each horizontal leg,
A top plate supported by upper ends of the both pedestals;
The rear end of each horizontal leg so that the wheel is positioned behind the rear surface of the rear side of the pedestal, and the lower end of the wheel is substantially level with the lower surface of the horizontal leg, or Casters provided with slightly different heights,
And a floor contact member provided on the lower surface of the front end of each horizontal leg.   2. A caster wheel is located on the upper surface of the rear end of the horizontal leg so that each pedestal is tilted forward, and the wheels of the casters are positioned behind the downwardly extending surface of the rear surface of the pedestal. Listed table.   3. A rear-facing bearing piece that constitutes a constituent member of a caster is protruded from the rear end of each horizontal leg rod, and the shaft that faces the left-right direction of the wheel is supported by the bearing piece. Table.   By projecting the bearing piece at the center in the left-right direction at the rear end of each horizontal leg rod, the left and right width is approximately the same as the left and right width of each wheel at the rear of each horizontal leg rod and on both sides of the bearing piece. By forming a pair of left and right wheel housing steps that are the same, and arranging the wheels in the wheel housing steps, the outer surface of each wheel is aligned with the side surface of the horizontal leg rod in the front-rear direction. The table according to claim 3.   By providing recessed stepped portions that open to both sides and below on both side surfaces from the rear part to the vicinity of the front part of each horizontal leg, the cross-sectional shape of the intermediate part in the front-rear direction of each horizontal leg is approximately T. The table according to any one of claims 1 to 4, which is shaped like a letter.   The table according to any one of claims 1 to 5, wherein each horizontal leg is thinned toward the front by making an upper surface of each horizontal leg into an inclined surface inclined downward toward the front.

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