TW200824605A - Moving desk, flip-up desk and caster - Google Patents

Abstract

The invention is to provide a flip-up desk preventing a collapsing fall even if forward inclining the desk using front-side casters as fulcrums. This flip-up desk is provided with a top board 10, a frame body supporting the top board 10, and casters 50 having wheels 51 rotatable relative to an installation part; and the caster 50 has projection parts 91 and 92, when rotationally turning the frame body, coming into contact with the installation part when the rotational turning advances by a prescribed angle degrees, and becoming the fulcrums of the rotational turning; and the caster rotationally turns with the wheel 51 separated from the installation part by the contact of the projection parts 91 and 92 with the installation part.

Description

200824605 IX. Description of the Invention: [Technical Fields of the Invention] This & month/y is a mobile table, a tip-up table, and a caster (caste ") mounted on the table. Technique 1 As a table that integrates a structure for efficiently arranging and accommodating a plurality of tables, there is a flip-up table. The flip-up table rotatably supports the table top through the stand, and the front side casters and the rear The side casters are respectively mounted on the lower side of the front end and the lower side of the middle portion of the base constituting the bottom of the stand. Moreover, the rear side casters of the two casters are connected to the table top by the link mechanism, so that the rotation of the table top is opposite to the rear side casters. The contact between the ground and the ground is mechanically linked. As the &, when the table is moved, the table is gently pushed forward as long as the table is rotated to a substantially vertical up position so that the rear casters come into contact with the ground. 'Alternatively' can be used to rotate the table top to a horizontal position so that the rear casters are off the ground when they are not normally used for such movement. With this configuration, even when a table is rotated to a substantially vertical position, a plurality of tables can be easily stacked in the front-rear direction and then stored (refer to the sixth drawing of the patent document 。). [Problems to be Solved by the Invention] However, the flip-up table disclosed in Patent Document 1 is provided with a lock mechanism for restricting the rotation of the 200824605 tabletop, and therefore, if it does not pass If the predetermined operation is to unlock the locking mechanism, the table top cannot be rotated. However, since the operating elements such as the lever that unlocks the table are placed in an inconspicuous place such as the desktop, there are many The user rotates the table in the horizontal position to the turned-up position without unlocking. Moreover, if the table is rotated without releasing the lock, the table as a whole does not rotate on the table. If only the front side casters are supported and tilted forward and forward, there is a front side caster that slides toward the user side. There is also the danger of tilting over and over. In addition, there is also a desire to hold the back of the table on the table and lift the rear end of the flip-up table so that the caster can only be moved while the caster is in contact with the ground. Case. In this case, there is a risk that the tilting as described above may occur. SUMMARY OF THE INVENTION The present invention has been made in view of the above background, and its object is to provide a flip-up table which is tilted upside down (four) with the wheel as a fulcrum. Means for Solving the Problem: The above-mentioned problem is solved as a preferred embodiment of the present invention: a frame having a table top, supporting the table top, and a body at the same time as the body is mounted a wheel body that is freely rotatable in the installation portion == a turn-to-turn wheel set! a convex portion that becomes a fulcrum of the rotation when the frame contact is advanced to a predetermined angle, and passes through the convex portion and the above The contact between the sets is continued by the state in which the above-mentioned wheels are separated from the above-mentioned set position 6 200824605. A flip-up table according to another preferred embodiment of the present invention is provided with a table top, a stand on which a leg for rotatably supporting the table top is erected on an upper side of the base extending in the front-rear direction, and a front wheel rotatably supporting the front wheel a front wheel support member connecting the front wheel support member and the front wheel connecting member of the first portion of the base, and the rear wheel is rotatably supported _

a support member' connects the rear wheel support member and the above-described tripod, and the rear wheel support member enables the rear wheel support member to swing between a rear wheel use position and a rear wheel non-use position, wherein the rear wheel use position is The rear wheel is pressed down to a position on the line connecting the second portion behind the first portion and the lower end of the front wheel or below the straight line, and the rear wheel non-use position is to lift the rear wheel to a position above the straight line. And a link that causes the rotation of the table top and the rocking of the rear wheel connecting member to be linked (synchronized) == the front wheel support member is provided with a convex portion which is provided on the front wheel support portion:::::: When the angle is at an angle with respect to the lower end of the front wheel, the predetermined angle may be the same as the angle of the front wheel support member when the tilting of the super-wheel support member is below the line, and the above-mentioned rule: angle: rt The rear wheel is pressed down to the above-mentioned straight line 1 = the angle at which the wheel support member exceeds the tilt amount of the above-mentioned member and the front wheel branch is below the forward line, and the angle at which the front wheel rotates rearward The angle ' can also be a support member that does not have a wheel as a preferred embodiment of the present invention and a rotatably 7 200824605 supporting the above-mentioned wheel; the support member is provided with a convex portion, and the convex portion is at the support member When it is tilted to a predetermined angle, it is grounded on the ground that is located forward with respect to the lower end of the wheel. According to the present invention, even if the front caster is tilted forward as a fulcrum, the tilting does not occur. [Embodiment] (Embodiment of the Invention) The following describes an embodiment of the invention of the present application. The flip-up table according to the embodiment is formed such that the table top is rotated from a position horizontal to the ground (hereinafter referred to as a "horizontal position") to a position vertically raised (hereinafter referred to as a "upward position"). The state is such that it is possible to overlap and accommodate a plurality of types of tables. The first figure is a left side view of a state in which the table top is placed in a horizontal position, and the second figure is a left side view of a state in which the table top is placed in a flipped position. The flip-up table is provided with a table top 1 , a stand 30 (corresponding to a frame body) erected with legs 31 for supporting the table top 10 from the left and right sides, and as the stand 30 is moved in the front-rear direction The front caster 5〇 and the rear caster 7〇 of the components are the same. In the following description, the “front-rear direction” refers to the XX direction shown in the first figure. The table top 10 is a wooden board body having a width in the left-right direction that allows a plurality of people to use side by side, and is supported by the two legs 31 of the stand 3 from the left and right sides by the table top support plate. The table support plates 1 1 are slightly semicircular members respectively disposed at the left and right end portions of the plate member 12, and the plate members 12 are inserted between the legs 32 of the stand 2008 30605. The table support plate supports the table top 10 so as to be rotatable about the axis B extending in the left-right direction. Further, on the lower surface of the right and left end portions of the table top, as shown in the front-rear direction, a bracket 13 having a shape of a steel plate which is opened upward is fixed, and the front and rear directions of the two (four) 13 are fixed. In front of the middle, a support shaft 14 is provided which penetrates the table support plate 彳彳 and the bracket 13 in the left-right direction. Further, a lever 15 as an operating element is provided at a position behind the sin near the bracket 13. As described in detail below, the lock mechanism 20 that restricts the rotation of the table 1 is formed by the control lever 彳 5 and a series of members from the control lever 15 up to the table support plate w. The leg 31 of the stand 30 is formed by bending a steel plate or the like into a tubular shape or the like. The lower end side of the leg 31 is attached to the base 32, and the mounting position is formed slightly rearward with respect to the front end of the base 32. Further, the leg 31 is erected from the mounting position toward the upper side. Further, the leg 31 is inclined only rearward by a slight angle with respect to the vertical direction so as to slightly rearward toward the upper side. • g... Further, the base 32 is formed by die casting of aluminum, and is not placed in a shape that is opened downward while being covered by a plurality of wall surfaces. Further, in the following description, a portion surrounded by a plurality of wall surfaces constituting the base 32 is referred to as a hollow portion 34. Further, the resin anti-slip member 33 that prevents the base 32 from sliding is protruded downward from the rear end of the base 32. Further, a portion of the base 32 to which the anti-slip member 33 is attached is provided in a solid shape. Further, in front of the leg 31 of the stand 30 and the bracket 13, a baffle 17 is provided 9 200824605. The baffle 17 is slidably coupled to the leg 31 and the bracket 13 by the link members 15 and 16, thereby forming a shape L in conjunction with the rotation of the table top 1 and the baffle 17 is made of alloy and Set to corrugated plate shape. The rear caster 70 is provided with a rear wheel 71 and a rear wheel support arm 72 that rotatably supports the rear wheel 71. The rear wheel support arm 72 corresponds to the rear wheel support member and the rear wheel connection member. The rear wheel support arm 72 is a member having a side shape of a slight "1", and is a portion of the rear wheel support arm 72 which is slightly "L"-shaped and which is located on the side of the month il and extends in the up-and-down direction. As the short film, a portion extending from the front side to the rear side and shorter than the short 72a is used as the long piece 72b. Further, in the short piece 72a, the upper side hole & the lower side is provided with the lower side hole 74. The lower side hole 74 in the hole is pivoted toward the wall surface (side wall surface) constituting the base 32 by a pin=side (not shown) (the shaft 2 is swayable in the vertical direction by the side hole 74 and the pin as a fulcrum. The rear wheel support arm 72 is rocked up and down by the link mechanism 75 and the table top, and the rotation 隹 75 of the table 1 有, and has a link mechanism, a connecting rod 76, a link member 77, and a crank. ...reading (8), wherein the connecting rod 76 is a long rod-shaped member, and the &iLt in the wall surface (upper wall) of the base passes through the portion of the portion where the leg 31 is tapped substantially in the middle It is roughly centered. Moreover, the hole at the end of one end of the lower end Μ 77 through the pin (four) is connected at the same time. The one end side of the link member 77 is connected to the upper side hole 73 of the rear wheel support arm 72. The other upper end of the other connecting rod 76 and the end of the crank 78_ end side are swingably movable by the .200824605 lock. Connected, the crank 7 is fixed to the side of the hole and the A side is fixed to the shell support plate and the support shaft end of the bracket 13. Therefore, the table 10 is placed, two u 17, water ten The first position of the lock mechanism 2 is released.

When the rotary furnace is moved up, the lower end of the rear wheel 71 and the table top 10 are described in detail in the state of the ground F rear end corresponding to the installation portion of the flip-up table. First of all, when the desktop 1〇 is started, m 1G and the bracket 彳 3 and the desktop support plate are rotated together with the support shaft 14 as a fulcrum = the position of the branch is counterclockwise: the connecting rod 76 and the fish 兮 far red red ^ ^ 邛 heart w connected to the front of the poem 77:: =, the connecting rod 76 is pulled upwards, the link: the two postures of the two are changed from the tilted state to the slightly... The side of the upper side hole 73 in the half piece 72a is pushed rearward, and is pushed by the hem, and the side hole 74 of the soil support arm 72 is rotated clockwise as a fulcrum. Thus, the rear wheel 71 slides out to the lower side and landed. As shown in the second figure, by this shaking, the rear wheel 7 低于 is lower than the front base connecting the front caster 5 至 to the lower month ... b1 lower jaw and the lower end (phase) of the anti-slip member 33, the anti-slip member 33 is separated from the ground F. -- The two pictures are placed in the up position of the table 1° as shown in the figure: pass == two solutions: the locking mechanism 2. After locking it will be desktop 1. The rear end: When it is downward, the mechanical action opposite to the above description occurs. At this time, the rear wheel 11 is lifted to a position higher than the straight line L (hereinafter, referred to as "rear wheel non-use position"). The member 33 is in a state of being grounded on the ground F in conjunction with the horizontal movement of the table top 1 (synchronized).

Here, the locking mechanism 20 as a mechanism for unlocking the rotation lock of the table top will be described in detail with reference to the third and fourth figures. The second and fourth figures are enlarged views of the locker # 2G, the third diagram shows the state in which the table top 1 is placed in the horizontal position, and the fourth figure shows the state in which the table top 10 is placed in the up position. The lock mechanism 20 shown in the two figures is provided with a control force rocking member 21 and a crank 22. Among them, the lever 15 is rotatably supported by the shaft on the inner side of the rear side of the bracket 13. Further, the rocking portion...the insertion rocking member is connected to the center inside of the bracket 3 from the support shaft 23 of the two-hole. Further, the crank uses a pin to connect the front end and the rear side of the crank itself to the front end of the control lever 15 and the rear end of the rocking member 21, respectively. Further, on the support shaft 23 of the shaft supporting rocking member 21, an elastic crystal (not shown) that causes the rocking member 21 to constantly act in the counterclockwise direction is inserted. Further, at the front end of the 4 oscillating member 21, a lock pin 24 extending in the left-right direction is fixedly provided. On the other hand, the table top support plate 11 is provided with a plurality of concave portions 25, 26 on the upper side and the lower side by making the table top support plate slightly semicircular. Among them, the inner side of the concave portion 26 on the lower side is vertical & Further, in the following description, the standing portion inside the recessed portion 26 is referred to as the lock pin abutting portion 27. As shown in the third figure, in a state where the table top is placed in the horizontal position, the lock pin 24 of the movable member 21 is fitted to the upper side by the spring force 12 200824605 = concave. P 25. By this fitting, the rotation of the table top 1Q toward the turned-up position is locked. In this state, the rear end side of the control lever 15 is pushed toward the table top 1 : the rocking member 21 is shaken against the elastic force of the spring. Thus, the lock pin 24 is disengaged from the upper concave portion 25 by k, and the lock is released, and the table top 10 in the horizontal state can perform the Korean movement. Moreover, if the table top 10 is rotated after the lock is released, the rotation lock 24 is advanced on the outer periphery of the table branch plate n.

The crucible slides, and when the lock pin joint portion 27 is reached, the advance rotation of the table 1G is broken. Further, the lock pin 24 that has reached the lock pin contact portion 27 is subjected to the action of the elastic force and is lost to the lower concave portion 26. Therefore, as shown in the fourth figure: The rotation of the table top 1 toward the horizontal position is locked. Similarly, when the table top 1 is rotated from the state in which it is placed in the up position to the horizontal position, the lock can be released by pushing the control lever 15 toward the table top 10. 2, the configuration of the front caster 50 will be described. The figure shows the left side view of the detailed configuration of the sodium caster 50, and the second = its main view. The front (four) 5 〇 ' is provided with a front wheel 51, a front wheel branch portion 52 that rotatably supports the wheel 51, and a front wheel connection imaginary that connects the front ends of the front wheel support portions 52 and =32. The front wheel support portion 52 corresponds to the wheel support member, and the front wheel link portion 53 is separated from the one wheel support portion 52 by the two yokes 56. The front part, the material 56, 57, integrates the two members of the semi-columnar member 54 and the four-corner column member 55. When the front wheel support portion 52 and the front wheel connecting portion 53 are described in detail, first, the member 54 is in a state in which both end faces are opposed to the front wheel 51: the wheel diameter of the semi-cylindrical member 54 is set to be slightly larger, and the half is half. The columnar member W is formed into a shape in which a straight line (a straight line M in the fifth drawing) having a center slightly smaller than the center of the left and right end faces of the cylinder having the above-described wheel diameter is formed as a slit and the lower side is cut off. On the lower surface of the semi-cylindrical member 54 corresponding to the slit, two threaded holes 61, 62 facing upward are arranged side by side. In addition, a hole is bored between the centers of the end faces. Further, on the left and right sides of the shaft through which the hole is inserted, the center of the pair of the two wheels 51a, 51b of the front wheel 51 is fixed. Further, on the outer side of the arcuate circumferential surface of the semi-cylindrical member 54, The outer casing 58 on the upper side of the two wheels 51 a, 51 b is covered. On the other hand, the quadrangular prism member 55 is a member having a substantially rectangular parallelepiped shape in which two holes 550 are provided from the upper side to the lower side, and the interval between the two holes 55 is the same as the interval between the screw holes and the holes 61 and 62. The front wheel support portion 52 that integrates the two members is formed by inserting the bolts 56, 57 of the hole 550 inserted through the four-corner member into the threaded holes 6 of the semi-cylindrical member 54 and 62'. Further, a hole 55 〇 /, a small diameter portion 551 and a large diameter portion 552 are provided, and a step portion 553 is provided between the small diameter portion 551 and the large straight portion 552. Further, the screw portions 56a and 57a of the bolts 56 and 57 are inserted into the small-diameter portion 551. When the insertion is continued, the head portions 56b and 57b of the screw gauges 56 and 57 are caught by the step portion 553. The wheel connecting portion 53 is a member that connects the front wheel 5A and the front end (corresponding to the first portion) of the base 32. The front wheel connecting portion 53 engages the shaft member 6 of the bearing member that is coupled with respect to the bearing member 59, and the bearing member 9 is fixed at a position slightly rearward with respect to the center of the outer casing 58 of the front wheel support portion 52. on. The upper portion of the shaft 6〇 is a bolt and is fitted to a thread groove which is formed from the lower surface of the front end of the base 朝向 toward the upper side. Further, a bearing (not shown) is inserted into the bearing member 59 14 200824605 at a position of the connection P of $, so that the front wheel 51 is rotated by the connection portion as a fulcrum. The second axis of the front wheel 51 is placed at a horizontal position. The axis of rotation c of the front wheel 51 is inclined only in the vertical direction with respect to the ground surface. Moreover, as shown, in the state where the table top 10 is placed in the turned-up position, the pass = rear wheel 71 f is pressed to the rear wheel use position, the table is inclined only to the front (7), and the rotation axis c is perpendicular to the ground F. The state is extended in the up and down direction, and the rotation of the other wheel 51 becomes smoother. Return to the descriptions of the fifth and sixth figures again. As mentioned above, the front wheel

2: Γ is to make the θ semi-cylindrical member 54 and the quadrangular column member 55 integrally wire, ° ' However, when the rear wheel 71 is pressed down to the rear wheel use position and the rotation axis C extends perpendicularly to the ground F, The lower surface of the front wheel support portion 52 is formed in a shape that maintains an angle substantially parallel to the floor surface F. Further, the front and rear ends of the front wheel support portion - 52 are provided with convex portions 91, 92 which are placed at the lower end of the front wheel 51 at the lower end of the front wheel 51 as the fulcrum is tilted forward or backward only Μ θ2 On the ground F. Therefore, since the rear end of the table top 1 is lifted without being released, and the flip-up table starts tilting forward with the coup 51 as a fulcrum, at the earlier stage of the tilt, the convex portion 91 or the convex portion The portion 92 is in contact with the ground F. When the flip-up table is further tilted, the flip-up table starts tilting with the convex portion 91 or the convex portion 9, while the front wheel 51 is separated from the ground F. Here, the frictional force between the convex portion 或 or the convex portion 92 and the ground surface F is very large with respect to the rolling resistance of the bearing which the front wheel 51 has. Thereby, the flip-up table is tilted forward with the convex portion 91 15 200824605 or the convex portion 92 as a fulcrum. Therefore, it is possible to prevent the front wheel 5 from sliding toward the rear of the user side while the flip-up table is tilted over. (Other Embodiments) The present invention can be embodied in various modifications. The front wheel support portion 52 according to the above-described embodiment is a member in which the semi-cylindrical member 54 and the quadrangular prism member 55 are integrated by the bolts 56 and 57, and may be formed by forming a single-shaped member using a metal mold or the like. Further, the shape of the front wheel support portion 52 is not limited to the above-described embodiment, and the second wheel is not hindered from rotating on the front wheel 51, and the rear wheel 71 is pressed down to the rear wheel use position. The shape is also ok. Further, the convex portions 91 and 92 of the front wheel support portion 52 are landed on the ground (the angle Θ2 of the inclination amount of the hour), and may be emphasized on the table top of the rear wheel 71 depending on the slip degree (sliding degree) of the rear wheel 71. The arbitrarily set or the like of the base 32 or the like is arbitrarily set. However, the angle Θ1 is larger than the amount of inclination when the rear wheel 71 is pressed down to the rear wheel Φ use position, and the rear wheel 71 is not rotated rearward. In the above embodiment, the caster according to the present invention is applied to a flip-up table, but it is an object that is carried in a state where the wheel is tilted while being subjected to mechanical, electrical, or artificial action. The object to be transported may be a table of a type other than the flip type, or may be a chair or a common shackle. In the above embodiment, the anti-slip member 33 is protruded below the rear end of the base 32, but as long as it is located The rear of the front wheel 51 may be 16 200824605 to provide the anti-slip member 33 in front of the rear end of the base 32. Further, in the above-described λ-addition mode, the front wheel 51 is connected to the front end of the base 32 via the front wheel connecting portion 53. However, the front wheel 51 may be disposed rearward with respect to the front end of the base π. Further, in the above-described embodiment, the convex portion 91 or the convex portion 92 is formed by the corner portion of the corner column 5 5 . The portion 91 or the convex portion 92 may be configured not to use the quadrangular column portion # 55. For example,

The cymbal is formed by replacing the convex portion 91 or the convex portion 92 with the same length as the convex portion 91 or the convex portion 92. The yak or the rod member is attached to the semi-cylindrical member. A brief description of the schema] = a graph is a left side view of the state in which the desktop is placed in a horizontal position. The figure is a left side view of the state in which the desktop is placed in the up position. The second diagram is an enlarged view of the locking mechanism (the desktop is placed In the horizontal position

The fourth picture is the lock mode). The enlarged view of the structure (the fifth figure in which the table top is placed in the turned-up position is the front view of the left side view showing the detailed structure of the front caster showing the detailed structure of the front caster. 3 0 · · · Stand 12 · · · Plate 20 · · · Locking mechanism [Key component symbol description] H·Desktop 31·^ Feet 15^·Control lever 17 200824605 32· •• Base 33· 13· •• Bracket 70 · · 71 · •• Rear wheel 72· 75· •• Link mechanism 50· 51 * ••Front wheel 52· •Anti-skid parts • Rear caster • Rear wheel support arm • Front caster • Front wheel support

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Claims (1)

200824605 X. Patent application scope: 1. A mobile table, which is provided with: a table top, a frame body supporting the table top, and a caster having a wheel that is rotatable relative to the installation portion while being worn by the frame body; Further, the caster is provided with a convex portion that is in contact with the installation portion to be a fulcrum of the rotation when the frame body is rotated and the rotation is performed to a predetermined angle; and the convex portion and the installation portion are The contact between the two ends continues with the state in which the above-mentioned wheels are separated from the above-mentioned installation portion. 2. A flip-up table, comprising: a table top, a stand on which a leg for rotatably supporting the table top is erected on an upper side of the base extending in the front-rear direction, a front wheel, _ rotatably supporting the front wheel a front wheel support member connecting the front wheel support member and a front wheel connecting member of the first portion of the base, the rear wheel' rotatably supporting the rear wheel support member of the rear wheel, connecting the δ rear rear wheel support member and the tripod, The rear wheel support portion a second Kobe ground wheel located behind the first portion of the base is pressed down to a line connecting the two portions and the front end lower end 19 200824605 or below the straight line, and the rear wheel non-use position is to lift the rear wheel to a position above the straight line, and a link mechanism for making the rotation of the table top and the rocking of the rear wheel connecting member relatively movable; #the front wheel support member is provided with a convex portion which is inclined at the front wheel support member itself At a predetermined angle, the ground is placed on the ground on the front side with respect to the lower end of the front wheel. The flip-up table according to claim 2, wherein the predetermined angle is that the front wheel support member exceeds when the rear wheel is pressed down to the straight line or below the straight line The amount of tilt of the front wheel support member, and the angle reached when tilting forward. The flip-up table according to claim 2, wherein the predetermined angle is that the front wheel support member exceeds the front wheel when the rear wheel is pressed down onto the straight line or below the straight line The angle reached when the tilting amount of the support member is inclined forward, and is an angle at which the front wheel does not rotate rearward toward φ. 5 - a caster provided with a wheel and a support member rotatably supporting the wheel. The support member is provided with a convex portion which is placed on the wheel relative to the wheel when the support member itself is inclined to a predetermined angle The lower end is on the ground in front. XI. Schema: as the next page 20