WO2007010618A1 - Dispositif à bascule utilisant une came et procédé de production associé - Google Patents

Dispositif à bascule utilisant une came et procédé de production associé Download PDF

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Publication number
WO2007010618A1
WO2007010618A1 PCT/JP2005/013483 JP2005013483W WO2007010618A1 WO 2007010618 A1 WO2007010618 A1 WO 2007010618A1 JP 2005013483 W JP2005013483 W JP 2005013483W WO 2007010618 A1 WO2007010618 A1 WO 2007010618A1
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WO
WIPO (PCT)
Prior art keywords
swinging
long
cam
rocking
long holes
Prior art date
Application number
PCT/JP2005/013483
Other languages
English (en)
Japanese (ja)
Inventor
Akira Nagashima
Original Assignee
Daiei Dream Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daiei Dream Co., Ltd. filed Critical Daiei Dream Co., Ltd.
Priority to PCT/JP2005/013483 priority Critical patent/WO2007010618A1/fr
Publication of WO2007010618A1 publication Critical patent/WO2007010618A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G11/00—See-saws
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/0257—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame slidingly movable in the base frame, e.g. by rollers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63G—MERRY-GO-ROUNDS; SWINGS; ROCKING-HORSES; CHUTES; SWITCHBACKS; SIMILAR DEVICES FOR PUBLIC AMUSEMENT
    • A63G13/00—Cradle swings; Rocking-horses; Like devices resting on the ground
    • A63G13/06—Rocking-horses

Definitions

  • the present invention relates to a swinging tool such as a swinging playground equipment or a rocking chair installed mainly in an outdoor facility such as a park.
  • the swinging playground equipment 101 shown in FIG. 10 has a pair of grounding portions 112 and 112, and sets the radius of curvature of the arcs of the grounding portions 112 and 112 to be large. Therefore, the position of the center of gravity when the user (infant) is straddling is designed to be lower than the center of curvature of the ground contact portion 112. For this reason, when the center of gravity is moved forward or backward, it tilts, but a force (restoring force) to return to the original state acts. Therefore, it can be swung continuously by repeatedly moving the center of gravity back and forth.
  • This swinging play equipment 101 does not have a movable part and has a simple structure. Therefore, the swing play equipment 101 has high durability and has an advantage that it operates in a preferred mode as a play equipment for infants. .
  • it is originally designed as a playground equipment for indoor use and is not suitable for outdoor use in parks. Also, since it is difficult to deal with problems such as theft, there is a problem in installing it in a park where an unspecified number of people can freely enter and exit. In addition, there is a risk that the limbs of other infants may be caught between the grounding part 112 and the ground.
  • a swinging play equipment 201 shown in FIG. 11 has a coil spring 213 standing on the ground by burying a base anchor 205 connected to the lower end of a thick coil spring 213 in a concrete foundation 206. On top of this, a horse 202 that is shaped like an animal is attached.
  • the swing play equipment 201 can be fixed to the ground, it can be installed in a park or the like where the problem of theft is a concern. In addition, since the number of parts is small, it can be produced at low cost. It has the advantage that it can be produced. However, the swinging playground equipment 201 has the following problems.
  • the swinging play equipment 201 of FIG. 11 has a structure in which the wooden horse 202 swings due to the restoring force of the coil spring 213.
  • the swing mode is the panel constant of the coil spring 213 employed as a component. Will change. Therefore, when designing, it is necessary to adopt a coil spring 213 having an appropriate panel constant so that a suitable operation state can be obtained.
  • the swinging play equipment 201 installed in a park or the like there is a certain dilemma in determining the “appropriate panel constant”.
  • the coil spring 213 used in this kind of swinging playground equipment 201 is originally designed on the assumption that it is used in the compression direction. In general, use is not guaranteed by the manufacturer. In addition, when used in such applications, stress is concentrated at the midpoint of the coil spring 213, so that metal fatigue occurs in this area and the swift force is also found visually. It is almost impossible to do.
  • the swinging playground equipment 101 of FIG. 10 moves only in the front-rear direction and the up-down direction, so that it is easy to control the posture, but in the swinging playground equipment 201 of FIG. It is not regulated and can tilt in any direction around 360 degrees, so if it tilts in an unpredicted direction, the risk is greater for young children who are underdeveloped in their ability to control posture.
  • the swinging play equipment 301 shown in FIG. 12 has four support units erected on the ground at predetermined intervals.
  • the column 304 is composed of a head 302, a torso, and a horse 302 made up of a pair of left and right steps 314, and four insulators 315 of the same length, and each upper end of the column 304 and left and right steps.
  • Each front end portion and each rear end portion of the step 314 are connected by insulators 315, respectively.
  • the dimension L2 from the pivot point at the front end (the central axis of the joint) to the pivot point at the rear end in step 314 is determined by each of the front and rear columns 304a, 304b. It is set to be slightly shorter than the dimension L1 between the pivot points, and as shown in (1) of Fig. 12, in the equilibrium state, both the front and rear insulators 315a and 315b are downward. On the other hand, it is held in an inclined state so that the upper side spreads outward.
  • the swinging play equipment 301 of FIG. 12 employs a powerful mechanism, when the user (infant) moves the center of gravity forward or backward across the trunk of the wooden horse 302, the swinging play equipment 301 of FIG. From the equilibrium state shown in (1), as shown in the same figure (2), the wooden horse 302 moves forward and inclines forward, or as shown in the same figure (3), the wooden horse 302 moves backward. At the same time, it will swing until it is tilted backward. In addition, when the tilted state is realized, the restoring force works to move in the opposite direction, so that the wooden horse 302 can be continuously swung.
  • Such an operation mode of the wooden horse 302 can be typically grasped as an "operation mode of the swinging node" in the 4-link mechanism as shown in FIG.
  • AB is a fixed node
  • CD is a swinging node
  • points A and B at both ends of the fixed node AB are respectively attached to the pivot points of the columns 304b and 304a shown in FIG.
  • the swing node CD corresponds to step 314 of the horse 302.
  • points C and D at both ends of the swinging node CD correspond to the pivot point at the front end and the pivot point at the rear end of step 314, respectively.
  • BC and AD are insulators, which correspond to the insulators 315a and 315b before and after shown in FIG. Note that the symbol M shown in FIG. 13 indicates the midpoint of the swinging node CD.
  • the line will swing back and forth and up and down until the CD is tilted backwards. At this time
  • the point C on the front side reciprocates on the circular arc track centered on the point B
  • the point D on the rear side reciprocates on the circular arc track centered on the point A.
  • the midpoint M of the swing node CD reciprocates on an elliptical trajectory, and the elliptical trajectory can be obtained by functional calculation.
  • the source of the restoring force of the swinging playground equipment 301 in FIG. 12 is gravity, unlike the swinging playground equipment 201 using the coil spring 213 (see FIG. 11), the restoring force according to the weight of the user is increased. Arise.
  • the swinging playground equipment 301 operates in the same manner regardless of weight, except for the scale of the playground equipment.
  • the swinging play equipment 301 of FIG. 12 is superior to the swinging playground equipment 201 using the coil spring 213.
  • the structure is simple, if components such as bearings are properly selected, they can operate smoothly and extremely high durability can be expected.
  • the motion is limited to a vertical plane, the problem of “danger due to tilting in an unforeseen direction” does not occur unlike the swinging play equipment 201 of FIG. 11 that makes it easy for the user to predict the motion. .
  • Geometric parameters for causing the swinging playground equipment 301 of FIG. 12 to operate appropriately as a playground equipment are the distance between the pivot points of the front and rear supports 304a, 304b.
  • Ll the dimension between the two pivot points in each insulator 315, and the pivot point force at the front end in step 314 is also the dimension L2 to the pivot point at the rear end (i.e. AB length, insulator BC, AD length, and swinging node CD length).
  • the operating range in the front-rear direction is about 90 mm, the upward and downward directions are about 30 mm, and the tilt angle is not restricted to about ⁇ 10 ° with respect to the equilibrium state. It is considered dangerous as a play equipment for infants. Considering these, it is inevitable that a four-link mechanism with a scale as shown in Fig. 12 must be adopted.
  • the swinging play equipment 301 of FIG. 12 has a force that cannot effectively avoid the danger of pinching, which makes it very difficult to reduce the size of the mechanism.
  • the present invention has been made to solve the above-described problems in the prior art, and the swing mechanism can be configured to be compact compared to the conventional one, minimizing the risk of pinching.
  • An object of the present invention is to provide a swinging toy or other swinging tool that can be used.
  • the swinging device (swinging device, rocking chair, etc.) according to the present invention is characterized in that a positive cam mechanism is employed as the swinging mechanism.
  • the positive cam mechanism includes a cam in which a plurality of curved long holes (or long grooves) are formed, a plurality of followers that pass through (or enter) the long holes (or long grooves), and It is preferable to be constituted by means for fixing the orientation and spacing of the follower (such as a rocking plate).
  • the swing tool manufacturing method according to the present invention first attempts to realize an assumed operation. It is characterized by calculating the trajectory curve of the central axis of the follower required for this, and designing the shape of the long hole (or long groove) to be formed in the force plate based on the calculated value. The invention's effect
  • the rocking tool of the present invention employs a positive cam mechanism as the rocking mechanism, the mechanism can be configured as a conduit. Therefore, the danger of pinching can be minimized.
  • the swing mechanism and the supporting struts can be concentrated only in the center part of the playground equipment, the number of parts can be reduced and installation work can be simplified. Costs and construction costs can be kept low.
  • a positive cam mechanism is used, various operations can be realized by devising the shape of the long hole (or long groove).
  • FIG. 1 is a side view of the swinging playground equipment 1 according to the first embodiment of the present invention.
  • 2 is a wooden horse
  • 3 is a swing mechanism
  • 4 is a support.
  • only one support column 4 is used, and the base anchor 5 at the lower end is erected on the ground by being embedded in the concrete foundation 6.
  • a swing mechanism 3 is fixed to the upper end of the support column 4, and a wooden horse 2 is installed above it.
  • the swing mechanism 3 includes one cam plate 7, three roller followers 8 (8a to 8c). And two swing plates 9 (9a, 9b).
  • the cam plate 7 is formed with three curved long holes 11 (1 la to: L ie), and the three roller followers 8a to 8c are arranged in the corresponding long holes 1 la to l lc. One by one, the deviation is also passed vertically to the surface of the cam plate 7.
  • roller followers 8a to 8c are sandwiched by the swinging plates 9a and 9b from both sides while being passed through the long holes lla to llc.
  • the roller followers 8a to 8c are integrally connected to the oscillating plates 9a and 9b in a state where the direction and the interval are fixed by the bolts 10 tightened from the outside of the oscillating plates 9a and 9b sandwiching them.
  • Figure 2 Oscillating plates 9a and 9b shown are partially omitted including the upper end connected to the horse 2.
  • Each of the roller followers 8a to 8c is a force that can freely move while rolling in the long holes l la to l lc formed in the cam plate 7. Constrained by the contour curve.
  • the widths of the long holes l la to l lc are all constant and are set to be slightly larger than the diameters of the roller followers 8a to 8c to be passed through, so that each roller follower 8a to 8c
  • the movement of the center axis becomes definite so that the trajectory of each central axis substantially coincides with the center line of the long hole 11a.
  • the oscillating plates 9a and 9b that sandwich the powerful roller followers 8a to 8c and are integrally connected thereto are deterministic corresponding to the shapes of the three long holes l la to l lc. Will behave. More specifically, from the equilibrium state as shown in Fig. 3 (1), as shown in (2), it moves to the left side in the figure and tilts to the left side, or as shown in (3), It moves to the right side in the figure and operates until it is inclined to the right side.
  • the swinging playground equipment 1 of the present embodiment is restrained by the cam plate 7 in which the plurality of long holes 11 are formed and the contour curve in the long hole 11 in the swinging mechanism portion 3, and the central axis
  • the positive cam mechanism pos itive
  • the positive cam mechanism is composed of a plurality of roller followers 8 that move so that their trajectory substantially coincides with the center line of the slot 11 and a swing plate 9 that supports the roller followers 8. motion cam)
  • the rocking plate 9 is configured to perform deterministic movements in the horizontal direction, the vertical direction, and the inclination in accordance with the shape of the long hole 11.
  • the wooden horse 2 connected and fixed on the rocking mechanism unit 3 can be operated in exactly the same manner as the wooden horse 302 in the rocking playground equipment 301 shown in FIG.
  • the trajectory curves of the respective central axes of the roller followers 8a to 8c necessary for realizing this are calculated, and the shape of the long hole 11 is designed thereon.
  • the trajectory curve of the central axis of the roller follower 8 is calculated by the following method. First, on the xy coordinate plane, the 4-link mechanism ABCD (Fig.
  • the movement mode of the rocking node CD in the mechanism of realizing the movement mode of the twelve rocking play equipment 301) is grasped as a function, and the trajectory of an arbitrary point on the rocking node CD is calculated based on this.
  • the calculated value was used as the track curve of the roller follower 8.
  • FIG. 4 represents the 4-link mechanism ABCD shown in FIG. 13 (1) on the xy coordinate plane.
  • the fixed node AB is superimposed on the X axis, and the midpoint of the fixed node AB is the intersection of the xy axes 0 (0
  • the length of the fixed node AB is “2a”
  • the length of the swinging node CD is “2b”
  • the length of the insulator BC, AD is “r”
  • the angle of the insulator AD (the X axis force If the rotation angle in the clockwise direction is “0”, the coordinates (X, y) of the moving point D can be obtained by the following equation.
  • the position of the moving point D can be grasped as a function of the variable “ ⁇ ”. Since the moving point C is always at the position “2b” from the moving point D and the position “r” from the point B, the circle R2 with the radius “2b” centered on the point D and the point B This is one of the two intersections of the circle R1 with the radius “r” centered at. Therefore, the position of moving point C can be grasped by finding the solution of the following simultaneous equations.
  • the positions of the moving point D and the moving point C can be grasped as a function of " ⁇ ", and similarly, all the points on the swinging node CD, for example, FIG.
  • the trajectory of the midpoint M of the swing node CD shown in Fig. 4 and the trajectories P a and Q a of the points P and Q at the same distance from the midpoint M can also be grasped as a function of “ ⁇ ”.
  • the trajectory P a, Q a is calculated by giving an appropriate numerical value to the distance “j” from the middle point M, and the trajectory S a of the point S at the same distance from the points P, Q is calculated.
  • the swinging playground equipment 301 of FIG. 12 using a four-link mechanism has a risk of being caught by an infant's finger or hand, and swinging is realized so as to avoid this risk.
  • a four-link mechanism was adopted, downsizing was powerful enough to avoid the danger of pinching that was very difficult.
  • the swinging playground equipment 1 of the present embodiment employs a positive cam mechanism, the scale of the mechanism can be reduced in size by giving an appropriate numerical value as “” shown in FIG. Since the movable part (swinging mechanism part 3) that can be pinched can be compactly gathered in the lower center of the horse 2, a guard plate or the like can be used as long as the operation of the horse 2 is not obstructed. In this case, since the swinging mechanism part 3 can be completely covered, it is possible to minimize a pinching accident or the like.
  • the long holes (or roller followers) that are required at least to make the operation of the swing plate supporting the roller follower deterministic. )
  • a positive cam mechanism can be configured by passing a roller follower through a cam plate having two long holes one by one and supporting the roller follower so that the interval between the roller followers can be fixed. Therefore, it is not always necessary to form three long holes.
  • three long holes 11 are formed, and one long hole is formed more than the other two. In the case where it is shifted downward (or upward), the stability of the wooden horse 2 in the left-right direction can be improved, and rolling during operation can be suitably prevented.
  • the cam plate 7 that is one of the constituent elements of the swing mechanism 3 is configured by a single metal plate (thickness: about 2 cm).
  • a single metal plate thickness: about 2 cm.
  • the oscillating mechanism 3 can be configured by inserting a single roller follower so as to span the long holes 11c, 11c, etc. Even in this case, the stability of the wooden horse 2 in the left-right direction can be improved, and rolls during operation can be suitably prevented.
  • the cushioning material 12, 12 (reducing the impact that may occur when the single follower 8 reaches the end of the long hole 11 during operation) Space for installation) can be secured inside the mechanism, saving space.
  • the present invention can be applied not only to the wooden-horse-type rocking playground equipment 1 as shown in FIG. 1, but also to a rocking chair 21 as shown in FIG. 6, in this case, for example, as shown in FIG.
  • Such an operation tilting motion from a forward tilt state indicated by a two-dot chain line to a rear tilt state indicated by a one-dot chain line around an equilibrium state indicated by a solid line
  • a rocking chair 21 as shown in FIG. 6
  • Such an operation tilting motion from a forward tilt state indicated by a two-dot chain line to a rear tilt state indicated by a one-dot chain line around an equilibrium state indicated by a solid line
  • a general rocking chair has a pair of arc-shaped grounding portions like the swinging playground equipment 101 of FIG. 10, and performs a trochoidal motion.
  • the rocking chair 21 of this embodiment does not have a pair of arc-shaped grounding portions, in order to realize this, the same operation as that of a general rocking chair (ie, trochoidal movement) can be achieved.
  • the trajectory curve of each central axis of the roller follower required for the calculation is calculated, and then the shape of the long hole is designed.
  • the trajectory curve of the central axis of the roller follower is calculated by the following method.
  • a rolling circle of radius a that rolls on the xy coordinate plane without sliding in the predetermined direction on the X-axis (constant straight line).
  • the trajectory drawn by one point (moving point) on this rolling circle is called “cycloid”, and this curve can be expressed using the rotation angle ⁇ as a parameter.
  • the locus drawn by the moving point P1 located at a predetermined distance b from the center o of the rolling circle is called “trochoid” and represents this curve with the rotation angle ⁇ as a parameter.
  • X a ⁇ — bsin ⁇
  • these curves (track curves of points PI, P2, P3) are used as the track curves of the central axis of the roller follower, and the shape of the long hole is designed based on these curves.
  • the rocking motion of the rocking chair 21 fixed above the rocking mechanism to be applied is configured to be a trochoidal motion.
  • the force of the track of the moving point when rolling a perfect circle is the track curve of the central axis of the roller follower. Based on the track of the moving point when rolling an ellipse A central axis trajectory curve can also be designed.
  • the present invention can also be applied to a seesaw-type swinging play device 51 as shown in FIG.
  • This seesaw-type swinging play device 51 has a structure in which the swinging mechanism portion 53 is covered with the cover 52, and therefore, dangers such as pinching can be suitably avoided.
  • FIG. 1 is a side view of a swinging playground equipment 1 according to a first embodiment of the present invention.
  • FIG. 2 is an exploded perspective view of the swing mechanism 3 shown in FIG.
  • FIG. 3 is an explanatory diagram of an operation mode of the rocking mechanism unit 3 shown in FIG. 1.
  • FIG. 4 A diagram representing the 4-link mechanism ABCD shown in FIG. 13 (1) on the xy coordinate plane.
  • FIG. 5 is a view showing another example of the structure of the swing mechanism part 3 used in the swing play tool 1 of the present invention.
  • FIG. 6 is a perspective view of a rocking chair 21 according to a second embodiment of the present invention.
  • FIG. 7 is a side view of the rocking chair 21 shown in FIG.
  • FIG. 8 is an explanatory diagram of a method for calculating the trajectory curve of the central axis of the roller follower in the rocking mechanism 53 of the rocking chair 21 shown in FIG.
  • FIG. 9 is a perspective view of a seesaw-type swinging play device 51 according to a third embodiment of the present invention.
  • FIG. 10 is a diagram showing a configuration example of a conventional swinging playground equipment 101.
  • FIG. 11 is a diagram showing a configuration example of a conventional swinging play equipment 201.
  • FIG. 12 is a diagram showing a configuration example of a conventional swinging play equipment 301.
  • FIG. 13 is a diagram schematically showing an operation mode of the swinging play equipment 301 shown in FIG.

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Abstract

La présente invention concerne un dispositif à bascule dans lequel un mécanisme basculant peut être construit de façon plus compacte que les mécanismes classiques et dans lequel le danger de pincement peut être minimisé. Le mécanisme basculant comprend une plaque de came (7) dans laquelle des orifices allongés curvilinéaires (11a-11c) sont formés, des suiveurs de galets (8a-8c) insérés dans les orifices allongés (11a-11c), et des plaques basculantes (9a, 9b) fixent la direction et les espacements entre les suiveurs de galets.
PCT/JP2005/013483 2005-07-22 2005-07-22 Dispositif à bascule utilisant une came et procédé de production associé WO2007010618A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/013483 WO2007010618A1 (fr) 2005-07-22 2005-07-22 Dispositif à bascule utilisant une came et procédé de production associé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/013483 WO2007010618A1 (fr) 2005-07-22 2005-07-22 Dispositif à bascule utilisant une came et procédé de production associé

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WO2007010618A1 true WO2007010618A1 (fr) 2007-01-25

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102228742A (zh) * 2011-06-24 2011-11-02 江汉大学 木马跷跷板
JP2015085103A (ja) * 2013-11-01 2015-05-07 株式会社岡村製作所 椅子
WO2017221310A1 (fr) * 2016-06-20 2017-12-28 コクヨ株式会社 Chaise et mécanisme de support de siège
WO2017221312A1 (fr) * 2016-06-20 2017-12-28 コクヨ株式会社 Chaise et mécanisme de support de siège
WO2018116384A1 (fr) * 2016-12-20 2018-06-28 コクヨ株式会社 Chaise
WO2018116385A1 (fr) * 2016-12-20 2018-06-28 コクヨ株式会社 Chaise
IT201700031748A1 (it) * 2017-03-22 2018-09-22 Co Fe Mo Ind S R L Meccanismo di articolazione per sedie

Citations (3)

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Publication number Priority date Publication date Assignee Title
JPS55666U (fr) * 1978-06-16 1980-01-05
JPH09206156A (ja) * 1995-11-27 1997-08-12 Takano Co Ltd 椅 子
JP3572235B2 (ja) * 2000-02-18 2004-09-29 スガツネ工業株式会社 背もたれ付き椅子

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55666U (fr) * 1978-06-16 1980-01-05
JPH09206156A (ja) * 1995-11-27 1997-08-12 Takano Co Ltd 椅 子
JP3572235B2 (ja) * 2000-02-18 2004-09-29 スガツネ工業株式会社 背もたれ付き椅子

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
THE JAPAN SOCIETY OF MECHANICAL ENGINEERS: "JSME Mechanical Engineers' Handbook", vol. REV. ED., 1968, XP003007392 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102228742A (zh) * 2011-06-24 2011-11-02 江汉大学 木马跷跷板
JP2015085103A (ja) * 2013-11-01 2015-05-07 株式会社岡村製作所 椅子
JPWO2017221310A1 (ja) * 2016-06-20 2019-04-11 コクヨ株式会社 椅子及び座の支持機構
WO2017221310A1 (fr) * 2016-06-20 2017-12-28 コクヨ株式会社 Chaise et mécanisme de support de siège
WO2017221312A1 (fr) * 2016-06-20 2017-12-28 コクヨ株式会社 Chaise et mécanisme de support de siège
US10986924B2 (en) 2016-06-20 2021-04-27 Kokuyo Co., Ltd. Chair and seat support mechanism
US10918211B2 (en) 2016-06-20 2021-02-16 Kokuyo Co., Ltd. Chair and seat support mechanism
JPWO2017221312A1 (ja) * 2016-06-20 2019-04-11 コクヨ株式会社 椅子及び座の支持機構
CN109195484A (zh) * 2016-06-20 2019-01-11 国誉株式会社 椅子及座的支承机构
WO2018116384A1 (fr) * 2016-12-20 2018-06-28 コクヨ株式会社 Chaise
CN109996467A (zh) * 2016-12-20 2019-07-09 国誉株式会社 椅子
JPWO2018116385A1 (ja) * 2016-12-20 2019-10-24 コクヨ株式会社 椅子
JPWO2018116384A1 (ja) * 2016-12-20 2019-10-24 コクヨ株式会社 椅子
US10806260B2 (en) 2016-12-20 2020-10-20 Kokuyo Co., Ltd. Chair
US10856660B2 (en) 2016-12-20 2020-12-08 Kokuyo Co., Ltd. Chair
WO2018116385A1 (fr) * 2016-12-20 2018-06-28 コクヨ株式会社 Chaise
WO2018173085A1 (fr) * 2017-03-22 2018-09-27 Co.Fe.Mo. Industrie S.R.L. Mécanisme d'articulation pour chaises
IT201700031748A1 (it) * 2017-03-22 2018-09-22 Co Fe Mo Ind S R L Meccanismo di articolazione per sedie
EP3599940B1 (fr) * 2017-03-22 2021-03-31 CO.FE.MO. Industrie S.R.L. Mécanisme d'articulation pour chaises

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