JP2006110067A - Table - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a table with which deskwork such as writing work can be easily conducted by another level top plate being used even when a key board or the like is operated in a state of the top plate elevated or inclined. <P>SOLUTION: A main top plate 21 is elevatably and inclinably supported in an up-and-down direction with a support frame 1 where upper ends of right and left leg bodies 2 are connected by transverse connection rods 3 and 4. Level and assistant top plates 31 are provided on extending parts 3a of the connection rod 3 extending from the sides of the main top plate 21. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a table that can easily operate a keyboard of an OA device or the like or perform other desk work.

  Examples of this type of table (desk) are described in Patent Documents 1 and 2, for example.

JP 7-8332 A JP 2004-130033 A

  In the table described in Patent Document 1, a concave portion is formed at the front end portion of the main top plate supported by the legs, and an auxiliary top plate (small top plate) on which the keyboard can be placed is formed in the concave portion. Because the front part protrudes forward, it is provided so that it can be raised and lowered and the angle can be adjusted, so when performing desk work such as writing work other than keyboard operation, not only the usable area of the main top plate is reduced, Desk work on the main top plate located behind the auxiliary top plate becomes difficult. In particular, it becomes more difficult to perform desk work on the main top plate behind the auxiliary top plate in an easy posture with the chair back tilted backward.

  Also in the table described in Patent Document 2, when the slide top plate is moved forward, the front half of the table is tilted downward and the keyboard is placed, the horizontal surface of the top plate is located behind the keyboard placement portion. It is difficult to write in an easy posture, and the top board is not easy to use.

  The present invention has been made in view of the above problems. Even when the keyboard is operated by moving the top plate up and down, the desk work such as writing work can be easily performed using another horizontal auxiliary top plate. It aims to provide a table that can be done.

According to the present invention, the above problem is solved as follows.
(1) The main top plate is supported by a support frame having at least one pair of left and right legs so that the main top plate can be moved up and down and tilted in the vertical direction, and is horizontal to the support frame at the side of the main top plate. Provide an auxiliary top plate.

(2) In the above item (1), the auxiliary top plate is formed in a shape that is long in the front-rear direction, and the front side of the auxiliary top plate projects forward from the main top plate.

(3) In the above paragraph (1) or (2), the support frame includes a lateral coupling rod that couples the upper ends of the left and right legs, and the side ends of the lateral coupling rod are connected to the legs and the main roof. Extending outward from the side edge of the plate and supporting the lower surface of the rear end of the auxiliary top plate with a support member attached to the extension, and lowering the lower surface of the front end portion of the auxiliary top plate to the floor surface with support legs To support.

(4) In the above item (3), two left and right support rods that are parallel to each other are attached to the lower surface of the auxiliary top plate so as to extend rearward from the rear end of the auxiliary top plate. Are fixed to the two left and right support members attached to the extension.

(5) In the above item (3) or (4), the support member has a vertically divided structure, and is fixed by fastening means so as to sandwich the extended portion of the horizontal connecting rod from above and below.

(6) In any one of the above items (1) to (5), the support frame is provided with at least one pair of left and right parallel link mechanisms facing in the front-rear direction so as to be rotatable in the vertical direction. The top plate is supported by the mechanism so as to move up and down in front of the lateral connection rod.

(7) In the above item (6), the front end of the top plate support arm facing in the front-rear direction is pivotally attached to the front portion of the parallel link mechanism so as to be pivotable up and down. Install the lower surface so that it can tilt in the vertical direction.

(8) In any one of the above items (1) to (7), the lower surface of the rear end portion of the auxiliary top plate is supported on the support frame so as to be horizontally rotatable.

According to the first aspect of the present invention, a horizontal auxiliary top plate is provided on the side of the main top plate that can be moved up and down and tilted up and down, so that the main top plate can be moved up and down or tilted to operate the keyboard and the like. Even so, desk work such as writing work can be easily performed using a horizontal auxiliary top plate.
Further, by moving the main top plate up and down and adjusting it so as to be aligned horizontally with the top surface of the auxiliary top plate, the mutual movement of the articles placed on them can be easily performed between the two top plates.

  According to the second aspect of the invention, since the auxiliary top plate can be used simply by turning the seating posture from the state in which the main top plate is used, the usability is further improved.

  According to the third aspect of the present invention, the left and right legs are connected by the lateral connecting rod, and the strength of the support frame is increased, so that the main top plate can be stably supported and the rear end portion of the auxiliary top plate Is supported by the extension of the lateral connecting rod, and the front end of the auxiliary top plate is supported on the floor surface by the support legs, so that even an auxiliary top plate that is long in the front-rear direction can be provided stably.

According to invention of Claim 4, the rear-end part of an auxiliary top plate can be supported to the extension part of a horizontal connection rod more stably.
Moreover, the protrusion length to the front from the main top plate of an auxiliary top plate can be easily changed only by changing the length of a support rod.

  According to the fifth aspect of the present invention, the support member can be moved in the left-right direction only by slightly loosening the tightening means. Therefore, the left-right position of the auxiliary top plate supported by the support rod is determined by the user. It can be easily changed according to preferences, work contents, and the like.

  According to the sixth aspect of the present invention, since a large leg space is formed below the main top board, the keyboard or the like can be operated with an easy posture in which the backrest of the chair is tilted backward.

  According to the seventh aspect of the present invention, since the main top plate is attached to the top plate support arm pivotally attached to the front portion of the parallel link mechanism so as to be tiltable, even if the height of the main top plate is adjusted. In this position, the inclination angle of the main top plate can also be adjusted.

According to the invention described in claim 8, the position of the auxiliary top plate can be easily adjusted with respect to the main top plate, and the auxiliary top plate is rotated inward to the maximum position, A continuous large top plate surface can be formed if they are brought into contact with or close to each other on the same surface.
Further, when the auxiliary top plate is turned to the left and right so that it is directed to the left and right, it can be used by other workers for desk work or the like.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a table for operating OA equipment according to the present invention, and FIG. 2 is a side view of the same.

  The table support frame (1) has a pair of left and right legs (2) and (2) that form an inverted T shape in side view, and a pair of front and rear that connects the upper end surfaces of both legs (2). The top plate support attached to the upper ends of the laterally connected rods (3), (4) and the left and right legs (2) so as to face forward (hereinafter, described with the diagonally lower right in FIG. 1 as the front). (5).

  The leg body (2) is composed of a base leg (2a) facing in the front-rear direction and a pedestal (2b) having a substantially elliptical cross section in a plan view standing up slightly rearward of the center. A support member (6) for supporting and fixing both end portions of the front and rear lateral coupling rods (3) and (4) is fixed to the upper end of the frame.

As shown in FIG. 3, the horizontal connecting rods (3) and (4) are made of a tube material such as an aluminum alloy having a substantially hexagonal cross section whose upper and lower surfaces are horizontal, and both end portions of the front horizontal connecting rod (3). Are extended outward from the side ends of the leg 2 and a main top plate (21) to be described later.
Openings at both ends of both lateral connecting rods (3) and (4) are closed by end caps (7).

  The support member (6) is formed with concave grooves (8) and (8) that complement the outer shape of the lateral connecting rods (3) and (4) that are fitted on the upper surface of the support member (6). The support plate (6a) and the same shape as the support plate (6a) and vertically symmetric, with the upper half of the front and rear lateral coupling rods (3) and (4) being fitted to the lower surface It has a vertically divided structure composed of a sandwiching plate (6b) having an upward concave groove (9) forming a shape.

  After fitting both ends of the front and rear lateral coupling rods (3) and (4) into the concave grooves (8) and (8) of the left and right support plates (6a), The bolt (10) inserted in the center of the support plate (6a) and the clamping plate (6b) is screwed onto the female screw (not shown) at the upper end of the pedestal (2b). At the same time, the bolt (10) inserted through the front and rear ends of the clamping plate (6b) is screwed into a female screw hole (not shown) on the upper surface of the support plate (6a), thereby making the pedestal (2b) And the support member (6) and both ends of the front and rear lateral coupling rods (3) and (4) are firmly coupled.

  When the support plate (6a) and the clamping plate (6b) are tightened with the bolt (10), a slight gap corresponding to the tightening allowance is formed between the opposing surfaces to thereby form the lateral coupling rods (3) (4). ) Are firmly fixed so as to be tightened by the support member (6).

  If the shape of the horizontal connecting rods (3) and (4) is a hexagonal cross section in which the upper and lower surfaces are horizontal as described above, the vertical dimension of the support member (6) can be reduced, so that the appearance can be improved. The support member (6) can be easily positioned and fixed horizontally.

  In addition, since the six outer peripheral surfaces of the laterally connected rods (3) and (4) are firmly fixed by the supporting member (6) complementary thereto, it rotates around the supporting member (6). There is no fear of rattling or rattling.

  If the left and right support members (6) are divided into upper and lower parts and the side end portions of the lateral connection rods (3) and (4) are clamped and fixed, the lateral connection rod ( 3) (4) can be moved in the left-right direction, and can be removed from the support member (6). Therefore, when the auxiliary top plate (31) to be described later is no longer necessary, the front side lateral connecting rod (3) can be replaced with a shorter one, or the extension length can be easily changed. it can.

  The top plate support (5) includes a pair of left and right parallel link mechanisms (11) and (11) which are pivotally mounted on the front ends of the left and right support members (6) so as to be pivotable up and down. Yes.

  As shown in FIG. 3, the left and right parallel link mechanisms (11) are formed by bearings (12) and (12) integrally formed at the front end of the upper clamping plate (6b) of the left and right support members (6). A base shaft (13) that is pivotally supported and faces in the left-right direction, a first link arm (14) whose rear ends are fixedly fitted to both projecting end portions thereof, and a rear side thereof. The first link arm (14) whose end is pivotally supported by an upward projection (15) on the upper surface of the front end of the clamping plate (6b) with a pivot (16) (see FIG. 2) facing in the left-right direction. The second link arm (17), which is positioned higher than the second link arm (17), and the first and second link arms (14), (17) are connected in the left-right direction connecting the front ends of the second link arm (14) (17) so as to be rotatable in the vertical direction. (18) and a connecting rod (19) for connecting the opposing surfaces of the left and right connecting arms (18).

  At the front ends of the left and right connecting arms (18), the front ends of the top plate support arms (20) and (20) are arranged around the axis facing the left and right directions above the first and second link arms (14) and (17). It is pivoted backwards so that it can pivot up and down.

  On the upper surface of the left and right top plate support arms (20), the lower surface of the main top plate (21) slightly closer to the rear is attached.

  The main top plate (21) forms a circular arc surface whose rear end surface bulges rearward, and both end surfaces form a circular arc surface that gradually curves inward as it goes forward, and the front end surface faces rearward. It is formed into a concave arcuate surface, and is formed in a generally inverted trapezoidal shape with a laterally long side view that gradually decreases in size toward the front, and a hand rest portion (21a made of a slightly soft elastomer resin or the like at the front end thereof. ) Are integrally formed.

  As described above, the parallel link mechanisms (11) and (11) are attached to the front ends of the pair of left and right support members (6) so as to protrude forward, and the top plate support arm (20) pivoted to the front ends (20) ( When the top plate (21) is supported by 20), the main top plate (21) is attached in a state in which almost the whole protrudes forward from the pedestal (2b) and the lateral coupling rods (3) and (4).

  Therefore, a large lower limb space is formed below the main top plate (21), and a keyboard or the like placed on the main top plate (21) is placed deeply below the top plate (21). A large feeling of opening is obtained when operating with the inserted comfort posture.

  In addition, the first and second link arms (14) and (17) of the left and right parallel link mechanisms (11) are different in level, and the inner second link arm (17) is located above, so Not only a large leg space is formed below the second link arm (17), but also there is a risk of fingers or clothes being caught between the first and second link arms (14) and (17). Absent.

  Since the left and right parallel link mechanisms (11) are connected by the connecting rod (19), they can rotate in synchronization with each other.

  As described above, the front and rear horizontal connecting rods (3) and (4) have a hexagonal cross section and are highly resistant to bending and twisting. Therefore, the main top plate (21) is supported in a state of protruding largely forward. However, there is no fear of causing any problems in strength, and the load on the main top plate (21) can be reliably received and stably supported.

  A first portion that applies an upward urging force to the central portion between the base shaft (13) and the connecting rod (19) when the main top plate (21) is moved up and down via the parallel link mechanism (11). The front and rear ends of the gas spring (22) are pivotally attached via U-shaped brackets (23) and (23) fixed to the base shaft (13) and the connecting rod (19) so that they face the front upper side. ing.

  In addition, a second urging force is applied to the central portion of the connecting rod (19) and the central portion of the lower surface of the rear end of the main top plate (21) when the main top plate (21) is tilted forward. The front and rear ends of the gas spring (24) are pivotally attached via U-shaped brackets (23) and (23) so as to face the rear upper side.

  The first and second gas springs (22) and (24) are operating means (25) accommodated in recesses in the left and right front corners on the lower surface of the hand rest (21a) of the main top plate (21). ) (25).

  That is, when the operation lever (26) of the operation means (25) is rotated diagonally forward and outward, the wire (27) linked to the operation lever (26) is pulled, and the operation lever (linked to the tip of the wire (27) ( When the operating valves of the first and second gas springs (22) and (24) are pushed, the lock is released and freed, and is extended by the internal gas pressure.

  Therefore, the parallel link mechanism (11) can be freely moved up and down by rotating the parallel link mechanism (11) up and down with the upward biasing force applied by the first gas spring (22). When the hand is released from the operation lever (26) at an arbitrary position, the height of the main top plate (21) is adjusted by locking the first gas spring (22).

  Also, when the left operation lever (26) is operated, the lock of the second gas spring (24) is released and the free state is established, so that the main top plate (21) can be moved to the top plate support arm (20). The second gas spring (24) is locked by releasing the operation lever (26) at an arbitrary rotation position, and the main top plate (21 ) Can be adjusted to a desired tilt position.

  (28) is an article placement table on which a display such as an OA device can be placed, and is attached to the upper ends of a pair of left and right support members (29) attached to the rear lateral coupling rod (4).

  As shown in the exploded perspective view of FIG. 4 (only the left side is shown for the same structure on the left and right sides), an extension part extending to the side of the leg (2) in the front lateral connection rod (3) ( The side table (30) is attached to 3a) as follows.

  The side table (30) has an auxiliary top plate (31) whose planar shape is substantially elliptical in the front-rear direction, and a support leg (33) whose upper end is fixed with a screw (32) on the lower surface of the front end. A rear U-shaped part at the front end is fixed to the upper end of the support leg (33), and two parallel left and right support rods (34) (34) extending rearward along the lower surface of the auxiliary top plate (31); And a short fixed cylinder (35) facing the up-down direction is fixed to the rear ends of both support rods (34).

  Two left and right support members (36) and (36) having a vertically divided structure are attached to the extension (3a) of the lateral coupling rod (3).

  As shown in FIG. 5, both support members (36) are fitted into the upper half of the extension (3a) and have an upper holding member (37) having a downward fitting recess (37) that complements it. 36a) and a lower clamping member (36b) having an upward fitting recess (38) that is complementarily fitted to the lower half of the extension (3a).

  After the extension part (3a) is clamped from above and below by the upper and lower clamping members (36a) and (36b), the stepped holes (39) and (39) of the lower clamping member (36b) at the front and rear parts sandwiching the extension part (3a) The upper end of the bolt (40) inserted from below into the female screw hole (41) (41) of the upper clamping member (36a) is screwed into the support member (36), so that the extension member (3a) It is fixed to.

  After fixing the left and right support members (36) to the extension portion (3a), the right and left support rods (34) are fixed to the fixing cylinders in the stepped holes (42) formed in the front end portion of the lower clamping member (36b). (35) is fitted from below, and the upper end of the bolt (44) inserted from below into the stepped hole (43) of the fixed cylinder (35) is opposed to the upper and lower clamping members (36a) (36b). And screwed into a square nut (46) previously fitted in the rectangular recess (45) formed in the above.

  Thereby, the rear end portion of the side table (30) is supported by the support member (36) attached to the extension portion (3a) via the support rod (34), And the front end is supported on the floor by the support legs (33), and the front end of the auxiliary top plate (31) is on the main top plate (21) on the side of the leg (2) and the main top plate (21). It is installed horizontally so as to protrude forward.

  As described above, in the table of the above embodiment, the auxiliary top plate (31) of the side table (30) is provided on the side of the main top plate (21) that can be lifted and lowered and the main top plate (21). For example, even when the main top plate (21) is tilted downward and the keyboard placed on it is operated, the seating posture on the chair is simply turned sideways. Desk work such as writing work can be easily performed using the horizontal auxiliary top plate (31).

  In addition, by adjusting the height of the main top plate (21) so that it is aligned horizontally with the top surface of the auxiliary top plate (31), the main top plate (21) is placed between them. It is also possible to easily carry out mutual movement of the articles.

  Furthermore, if the bolt (40) of the support member (36) having a vertically divided structure is slightly loosened, the support member (36) can be slid in the left-right direction along the extension (3a). The left and right positions of the auxiliary top plate (31) of 30) can be adjusted according to the user's preferences, work contents, etc., such as being close to or separated from the main top plate (21).

  FIG. 6 shows another embodiment of the table of the present invention. In this embodiment, the space between the left and right legs (2) and (2) is widened, and the upper ends of those leg posts (2b) are arranged. A support member (not shown) similar to the above-described support member (6) is provided and fixed to both side end portions of the front and rear lateral coupling rods (3) and (4), and the front ends are provided on the upper surfaces of the left and right support members. The lower surface of the rear end portion of the auxiliary top plate (49) in the side table (48) having support legs (47) at the portion is supported so as to be horizontally rotatable in the left-right direction.

  Thus, when the auxiliary top plate (49) is provided so as to be horizontally rotatable, the position and interval of the auxiliary top plate (49) can be easily adjusted with respect to the main top plate (21), and the auxiliary top plate (49 ) Inwardly to the maximum position so that the upper end of the main top plate (21) is horizontal and flush with the auxiliary top plate (49), a continuous large top plate surface is formed. Become.

  Further, when the auxiliary top plate (49) is largely rotated outward, the auxiliary top plate (49) becomes longer in the left-right direction, so that it can be used by a plurality of workers as a work table.

  In the table of the embodiment in which the side table (30) is fixedly provided, the side end portion of the rear side connecting rod (4) is also extended to the side of the leg (2), so that the front and rear side connecting rods are extended. (3) A support member may be attached to the extended portion of (4), and thereby the support rod (34) that supports the rear end portion of the auxiliary top plate (31) may be fixed.

It is a perspective view of the table of this invention. It is a side view similarly. Similarly, it is a top view of the principal part of a top-plate support body attaching part. Similarly, it is an exploded perspective view of a side table and its auxiliary top plate mounting portion. Similarly, it is a vertical side view of the support rod fixing portion of the auxiliary top plate. It is a perspective view which shows other embodiment of the table of this invention.

Explanation of symbols

(1) Support frame
(2) Leg
(2a) Base leg
(2b) pedestal
(3) (4) Horizontal connection rod
(3a) Extension
(5) Top plate support
(6) Support member
(6a) Support plate
(6b) Holding plate
(7) End cap
(8) (9) Groove
(10) Bolt
(11) Parallel link mechanism
(12) Bearing part
(13) Basic axis
(14) First link arm
(15) Upward protrusion
(16) Axis
(17) Second link arm
(18) Connecting arm
(19) Linkage
(20) Top plate support arm
(21) Main top plate
(21a) Hand rest
(22) First gas spring
(23) Bracket
(24) Second gas spring
(25) Operating means
(26) Control lever
(27) Wire
(28) Article placement table
(29) Support member
(30) Side table
(31) Auxiliary top plate
(32) Screw
(33) Support leg
(34) Support rod
(35) Fixed cylinder
(36) Support member
(36a) Upper clamping member
(36b) Lower clamping member
(37) (38) Fitting recess
(39) Stepped hole
(40) Bolt
(41) Female thread hole
(42) (43) Stepped hole
(44) Bolt
(45) Square recess
(46) Square nut
(47) Support leg
(48) Side table
(49) Auxiliary top plate

Claims (8)

  The main top plate is supported by a support frame having at least a pair of left and right legs so that the main top plate can be moved up and down and tilted in the vertical direction, and the auxiliary top plate that is horizontal to the support frame at the side of the main top plate. The table characterized by providing.   The table according to claim 1, wherein the auxiliary top plate has a shape that is long in the front-rear direction, and the front side of the auxiliary top plate protrudes forward from the main top plate.   The support frame includes a lateral coupling rod for connecting the upper ends of the left and right legs, and the lateral ends of the lateral coupling rod are extended outward from the lateral ends of the leg body and the main top plate. The table according to claim 1 or 2, wherein the lower surface of the rear end portion of the auxiliary top plate is supported by a support member attached to the portion, and the lower surface of the front end portion of the auxiliary top plate is supported on the floor surface by support legs.   Two left and right support rods that are parallel to each other are attached to the lower surface of the auxiliary top plate so that they extend backward from the rear end of the auxiliary top plate, and the rear ends of both support rods are attached to the extension. The table according to claim 3, wherein the table is fixed to each support member.   The table according to claim 3 or 4, wherein the support member has a vertically divided structure, and is fixed by a tightening means so as to sandwich the extended portion of the horizontal connecting rod from above and below.   The rear end of at least one pair of parallel link mechanisms facing the front-rear direction is provided on the support frame so as to be pivotable in the vertical direction. The table according to claim 1, wherein the table can be used.   The front end of the top plate support arm that faces in the front-rear direction is pivotally attached to the front part of the parallel link mechanism so that it can pivot up and down, and the bottom surface of the main top plate is attached to this top plate support arm so that it can tilt in the vertical direction. The table according to claim 6. The table according to any one of claims 1 to 7, wherein the lower surface of the rear end portion of the auxiliary top plate is supported on the support frame so as to be horizontally rotatable.

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