JP6235232B2 - desk - Google Patents

Description

  The present invention relates to a desk including a pair of left and right legs that support a top board.

  Conventionally, as a leg portion for supporting the top plate, a pair of front legs and rear legs provided at intervals in the front-rear direction are provided for the purpose of stably supporting the top plate with a simple configuration. A desk having legs that are provided on both sides is used.

  Moreover, in such a desk, the thing which raised the intensity | strength of a front leg and a rear leg by providing the connection part which connects a front leg and a rear leg is also used (refer patent document 1). In addition, when the position of a connection part becomes high, inconveniences, such as a user's leg being caught, occur, and in order to use a desk comfortably, it is desirable to arrange a connection part in a low position.

  Conventionally, there is a desk provided with casters on the legs of the desk (see Patent Document 2).

JP 2012-1000093 A Japanese Utility Model Publication No. 05-53526

  Also in the desk of patent document 1 mentioned above, the mobility of a desk improves by providing a caster. However, when the casters are arranged at the lower ends of the front legs or the rear legs in the desk of Patent Document 1, it is necessary to move the connecting parts upward to prevent the connecting parts from coming into contact with the casters. As a result, as described above, there are cases where it is not preferable in use because the connecting portion is at a high position.

  An object of the present invention is to propose a desk capable of enhancing mobility while suppressing impairing comfort.

One aspect of the present invention made to solve the above-described problem is a desk that includes a top plate and a pair of left and right legs that support the top plate, and has the following characteristics.
Each of the left and right legs includes a pair of legs arranged at an interval in the front-rear direction and a connecting portion that connects the pair of legs, and at least one of the pair of legs is provided. A caster is provided at the lower end.

  The connecting part has a first part and a second part. The first portion extends along the floor surface from the other leg different from the one leg described above toward the one leg side. The second portion passes outside the existing region where the caster can exist, and connects one leg to the extended tip of the first portion.

  The desk configured as described above is an existence area in which a first portion in a connecting portion that connects a pair of legs arranged at intervals in the front and rear directions extends along the floor surface, and a second portion can exist on a caster. Therefore, the first portion can be placed close to the floor surface and placed at a low position, and the connection portion can be prevented from coming into contact with the casters.

Therefore, in the desk of this invention, mobility can be improved with a caster, suppressing that the comfort at the time of sitting is impaired by arrange | positioning a connection part in a high position.
The above-described existence area means a space where the caster can be located in a normal desk use state such as when a desk is installed and used or when the caster is used for movement. For example, as the above-mentioned caster, a caster that can turn around a rotation axis in the vertical direction can be used. At this time, the above-described existence area becomes an area where the caster can move by turning.

  In this case, the second portion may be configured to connect the one leg described above through the outside of the existence region and the extended tip of the first portion. If it is such a desk, the mobility of a desk can be improved by using the caster which can be swung, and also in that case, a part of the connecting part is placed on the floor surface while suppressing the contact between the caster and the connecting part. Comfortability can be improved by arranging along.

  For example, the second portion described above may be configured to extend upward from the extended tip of the first portion and be connected to one leg. With such a desk, the second part extends upward while the first part is disposed along the floor surface, and the caster existing area can be avoided. Note that the upward direction is a direction away from the floor surface, and is naturally not limited to the vertical direction and includes an obliquely upward direction.

  By the way, the desk of the present invention can stack and store a plurality of desks so that the top plates overlap each other, and in the stored state, there is an interval in the vertical direction between the connecting portions of the two desks stacked vertically. It may be configured to be formed. Further, in that case, a second caster may be provided at the lower end of the other leg so as to fit in the vertical interval of the connecting portion described above.

  If it is such a desk, mobility can be further improved by providing a 2nd caster in the lower end of the other leg. In addition, when the desks are stacked, the second casters fit within the vertical interval of the connecting portion, so that it is not necessary to increase the stacking pitch and the stacking can be performed small.

  In the above-described configuration of the present invention, the front-rear, left-right, and up-down directions are defined in order to briefly explain the relative positional relationship between the respective parts. These indicate directions during normal use, but do not limit the mode of use. As an example, the direction from the seated person to the desk may be the front-rear direction, but is not limited to that direction.

It is a perspective view which shows the desk of an Example. It is a figure which shows the desk of an Example, (A) is a front view, (B) is a right view, (C) is a left view, (D) is a rear view, E) is a plan view, and (F) is a bottom view. It is an enlarged view below a leg part, (A) is a right view, (B) is a front view, (C), (D) is a left view. It is the right view which expanded the lower part of the leg part. It is a figure explaining stacking of a desk, (A) is a top view which omitted a part and was seen through, (B) is a BB sectional view to a lower desk of Drawing 5 (C), (C) is AA sectional drawing of FIG. 5 (A). It is the top view which abbreviate | omitted and was seen through partially explaining the connection of a desk. It is a figure which shows the modification of a desk, Comprising: (A) is a front view, (B) is a right view.

Embodiments of the present invention will be described below with reference to the drawings.
[Example]
(1) Overall Configuration As shown in FIGS. 1 and 2 (A) to 2 (F), the desk 1 of this embodiment includes a top plate 11 and a pair of legs that support the top plate 11 on the left and right sides. A portion 13L and a leg portion 13R, and a curtain plate 15 provided in a hanging shape on the front side of the top plate 11 are provided.

  In addition, the desk of a present Example assumes a user's seating position and the back of the top plate 11 becomes a seating side. The left-right direction is the left-right direction with the user as a reference when the user is seated toward the desk 1. Therefore, the left side of the desk 1 is shown in the right side view of FIG. 2 (B), and the right side of the desk 1 is shown in the left side view of FIG. 2 (C).

The top plate 11 is a substantially rectangular shape extending in the front-rear direction and the left-right direction, and is a plate-like member having round corners.
The leg portion 13L and the leg portion 13R are formed by bending and welding a metal pipe having a rod-like appearance. The leg portion 13L and the leg portion 13R have shapes that are almost symmetrical, but some of the shapes are different. Therefore, first, the leg portion 13L will be described, and the leg portion 13R will be described at points different from the leg portion 13L.

The leg portion 13L includes a front leg 21L and a rear leg 23L that are spaced apart from each other in the front-rear direction, and a connecting portion 25L that connects the front leg 21L and the rear leg 23L.
The front leg 21L is formed by welding an upper column 27L whose lower end is connected to the connecting portion 25L and a lower column 29L disposed adjacent to the upper column 27L. Both the upper pillar 27L and the lower pillar 29L extend in the vertical direction, and the lower pillar 29L is connected so as to be arranged on the right side of the upper pillar 27L.

At the lower end of the front leg 21L (lower column 29L), a swivel caster 31 is provided that can turn around a vertical rotation axis and can freely change the rotation direction.
At the lower end of the rear leg 23L, there is provided a fixed caster 35 whose rotation direction is fixed in the front-rear direction, which rotates about a rotation axis fixed in the left-right direction.

  The leg portion 13R includes a front leg 21R, a rear leg 23R, a connecting portion 25R, an upper column 27R, and a lower column 29R. , Upper pillar 27L, lower pillar 29L. The rear leg 23R is inclined forward in comparison with the rear leg 23L. The shape of the connecting portion 25R is slightly different from that of the connecting portion 25L, but will be described in detail later.

  Between the pair of left and right legs 13L and 13R, an upper leg connecting rod 39 (see FIG. 2D) that connects the upper pillars 27L and 27R and a lower leg that connects the upper ends of the lower pillars 29L and 29R. A connecting rod 41 is provided. The lower leg connecting rod 41 is formed integrally with the lower pillars 29L and 29R.

  The upper end of the front leg 21L and the upper end of the front leg 21R are connected by a first horizontal portion 45 (see FIGS. 5A and 5C). Further, the upper end of the rear leg 23L and the upper end of the rear leg 23R are connected by a second horizontal portion 47. The top plate 11 is supported by the first horizontal portion 45 and the second horizontal portion 47.

  As shown in FIGS. 2A to 2F, the front legs 21L and 21R are all provided in the space below the top plate 11, and the rear legs 23L and 23R are both the top plate 11. It is provided in the position which left | separated to the outer side of the left-right direction from lower space.

  The curtain plate 15 is arranged at the front end portion of the top plate 11 so that the main surface of the curtain plate 15 and the front end of the top plate 11 are substantially aligned. Further, the curtain plate 15 is arranged so that the gap between the top plate 11 and the bottom plate 11 is reduced so that a gap of a height that allows a finger or the like to be substantially inserted does not occur between the top plate 11 and the curtain plate 15. Yes.

A handle 51 is provided on the upper left and right center of the curtain plate 15. It is possible to carry the desk by hooking a finger or the like on the handle 51 and applying a load to the front side of the desk 1.
(2) Configuration of Leg Lower End First, the configuration from the connecting portions of the leg portions 13L and 13R to the front legs will be described with reference to FIGS. 3 (A) to 3 (D).

  As shown in FIGS. 3A and 3B, the connecting portion 25L of the leg portion 13L includes a first portion 61L extending along the floor surface from the rear leg 23L toward the front leg 21L, and the first portion 61L. It has a second portion 63L that is bent from the extended tip and extends forward and upward and to the right, and connects the front leg 21L (upper column 27L) and the first portion 61L.

The second portion 63L passes the outside of the existence region 65 where the universal caster 31 can exist, and connects the front leg 21L and the extended tip of the first portion 61L. Since the universal caster 31 can swivel about the vertical rotation axis, the existence area 65 where the universal caster 31 can be located is an area where the universal caster 31 can be located.
The swivel rotation axis of the universal caster 31 is arranged on the same straight line as the central axis of the front leg 21L (lower column 29L) and the front leg 21R (lower column 29R).

  As shown in FIG. 3C, the connecting portion 25R of the leg portion 13R also includes a first portion 61R and a second portion 63R, as in the connecting portion 25L, and the second portion 63R is located outside the existence region 65. Pass through. However, as shown in FIG. 3D, the second portion 63R is located above the second portion 63L as viewed from the left-right direction. Further, as compared with the second portion 63L, the bent position connected to the first portion 61R is the rear, and the bent position connected to the upper column 27R is the upper.

Next, the structure from the connection part in the leg parts 13L and 13R to the rear leg will be described with reference to FIG. Since the shape of this portion is symmetrical, only the leg portion 13L will be described.
The rear leg 23L extends in the vertical direction. The lower end of the rear leg 23L is formed as a bent portion 33 extending forward and downward, and the first portion 61L of the connecting portion 25L described above extends in the direction in which the front leg 21L is positioned from the tip of the bent portion 33. ing.

  The rotation shaft 35a extending in the left-right direction in the fixed caster 35 is such that its center 35b is a space below the bent portion 33 and is located in a region 33a above the lower end of the connecting portion 25L (first portion 61L). Is arranged.

The support portion 37 that supports the rotating shaft 35a of the fixed caster 35 includes a first region 37a that contacts the lower surface of the connecting portion 25L and a second region 37b that contacts the lower surface of the bent portion 33. Yes. The first region 37a and the second region 37b are formed in a curved shape matching the curved surface of the metal pipe surface so that the first region 37a and the second region 37b can be in close contact with the connecting portion 25L and the bent portion 33 made of a metal pipe. The support part 37 is fixed to the connecting part 25L by screwing from below.
The first portion 61L and the first portion 61R extend along the floor surface as described above, but the upper end of the main portion, that is, the portion located on the upper side of the side surface of the metal pipe is the free caster 31. The upper end of the wheel and the upper end of the wheel of the fixed caster 35 are arranged close to the floor so as to be lower in position.

(3) Desk stacking and ganging function The desk 1 can be stacked. A state in which two desks are stacked is shown in FIGS. FIG. 5B shows a diagram showing the lower side of the top plate 11 of the desk 1. A part of the configuration is omitted for easy understanding.

  As shown in FIG. 5 (B), the desk 1 has rear legs 23L and 23R disposed on the outer side in the left-right direction from the top plate 11 in a top view, and therefore, a plurality of the desks 1 are stacked and stored so that the top plate 11 overlaps. Is possible. The front legs 21L and 21R are arranged below the top plate 11, but since the position is near the front end of the top plate 11, the effect on the width of shifting the top plates 11 of the upper and lower desks 1 when stacking them is small.

  In the state of being stacked and stored in this way, a vertical space is formed between the connecting portions 25R of the two desks 1 as shown in FIG. As shown in FIG. 4 and FIG. 4, the fixed caster 35 is configured to fit within this interval.

The desk 1 can be ganged to the left and right to contact the top plate 11. FIG. 6 shows a state where two desks 1 are ganged. A part of the configuration is omitted for easy understanding.
As described above, the desk 1 has the rear legs 23L and 23R arranged on the outer side in the left-right direction with respect to the top board 11 in a top view. Do not touch.

  When the connection location of the two desks 1 is seen, the left end side of the second horizontal portion 47 is bent backward, and the rear leg 23L extends vertically downward from the left end portion. On the other hand, the right end portion side of the second lateral portion 47 is not bent, and the rear leg 23R extends downward and inclined downward from the right end portion. As a result, the rear leg 23 </ b> R of the left desk 1 is positioned so as to pass under the second horizontal portion 47 in the right desk 1, and contact of each leg is avoided.

  Further, as described above, since the second portion 63R is located above the second portion 63L as viewed from the left-right direction, the second portion 63R has a positional relationship in which the second portion 63R passes over the second portion 63L. Is also avoided.

Thus, the desk 1 of the present embodiment can achieve ganging and stacking at the same time.
(4) Effect Since the first portions 61L and 61R extend along the floor surface, the desk 1 of this embodiment does not impair the comfort of the user when seated. Further, since the second portions 63L and 63R bend upward in the vicinity of the universal caster 31 and pass the outside of the existence region 65, it is possible to prevent the connecting portions 25L and 25R from contacting the universal caster 31.

  Further, the desk 1 is further improved in mobility by providing a fixed caster 35 at the lower end of the rear legs 23L and 23R. When the desk 1 is stacked, the fixed caster 35 is moved in the vertical direction of the connecting portions 25L and 25R. Therefore, it is not necessary to widen the stacking pitch and can be stacked small.

  The front leg 21L and the rear leg 23L, and the front leg 21R and the rear leg 23R are an example of a set of legs in the present invention, the universal caster 31 is an example of the caster in the present invention, and the fixed caster 35 is in the present invention. It is an example of the 2nd caster in.

[Modification]
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and it goes without saying that various forms can be taken as long as they belong to the technical scope of the present invention.

  For example, in the above-described embodiment, the configuration in which the universal casters 31 are disposed on the front legs 21L and 21R has been illustrated. It may be configured to pass outside the existing area of the universal caster 31 that has been made.

  Moreover, in the said Example, although the straight part rod-like 2nd part 63L, 63R illustrated the structure which connects 1st part 61L, 61R and front leg 21L, 21R so that the existing area | region 65 may be avoided, the 2nd part is The shape bent along the outer periphery of the existence area | region 65 may be sufficient.

  Moreover, in the said Example, although the leg parts 13L and 13R illustrated the structure formed by bending or welding a metal pipe, the material of each part which comprises a leg part, a shape, and the connection method of each part are not specifically limited. .

  The desk 1a which used the metal pipe as the material of a leg part and changed the connection mode is shown to FIG. 7 (A) and FIG. 7 (B). As for desk 1a, front legs 21La and 21Ra are constituted by one metal pipe. The second parts 63La and 63Ra are welded to the front legs 21La and 21Ra, and the lower leg connecting rod 41a is also welded to the front legs 21La and 21Ra. Thus, the connection of each part of a leg part can be performed in various aspects.

DESCRIPTION OF SYMBOLS 1, 1a ... Desk, 11 ... Top plate, 13L, 13R ... Leg part, 15 ... Curtain board, 21L, 21R ... Front leg, 23L, 23R ... Rear leg, 25L, 25R ... Connection part, 27L, 27R ... Upper pillar, 29L, 29R ... Lower pillar, 31 ... Swivel caster, 33 ... Bending portion, 33a ... Region, 35 ... Fixed caster, 35a ... Rotating shaft, 35b ... Center, 37 ... Supporting portion, 37a ... First region, 37b ... 2nd area, 39 ... upper leg connecting rod, 41 ... lower leg connecting rod, 45 ... first horizontal portion, 47 ... second horizontal portion, 51 ... handle portion, 61L, 61R ... first portion, 63L, 63R ... Second part, 65 ... existing area.

Claims (4)

A desk comprising a top plate and a pair of left and right legs that support the top plate,
The leg portion includes a pair of legs arranged at an interval in the front-rear direction, and a connecting portion that connects the pair of legs,
A caster is provided at the lower end of at least one of the pair of legs,
The connecting portion is
A first portion extending along the floor surface from the other leg different from the one leg toward the one leg;
Wherein the distal end which extends out of the first part extending out upwardly connected to one leg, desk and having a second portion that spend through the outer existence area where the caster can exist .   A second caster, which is a caster different from the caster, is provided at the lower end of the other leg.
  The first portion is arranged such that the upper end of the main portion is lower than both the upper end of the caster and the upper end of the second caster.
  The desk according to claim 1. The caster is pivotable about a vertical rotation axis,
The second portion has a region in which the caster can move by swiveling as the existence region, passes through the outside of the region, and connects the one leg and the extended tip of the first portion. The desk according to claim 1 or 2 . The desk can store a plurality of desks stacked so that the top plate overlaps, and in the stored state, there is an interval in the vertical direction between the connecting portions of the two desks stacked vertically. Configured to be formed,
It said second caster, Oite the lower end of the other leg, a desk according to any one of claims 1 to 3, characterized in that it kicked set to fit in the gap.