CN1806720A - Ottoman device - Google Patents
Ottoman device Download PDFInfo
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- CN1806720A CN1806720A CN 200610006906 CN200610006906A CN1806720A CN 1806720 A CN1806720 A CN 1806720A CN 200610006906 CN200610006906 CN 200610006906 CN 200610006906 A CN200610006906 A CN 200610006906A CN 1806720 A CN1806720 A CN 1806720A
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Abstract
An ottoman device (3) (30) includes a first rotation link(13) (14) (34) (35) rotatably supported at a front end of a seat in order to support a ottoman main body (10), which is extended to a front direction of the seat or stored within the seat, in accordance with the rotation of the rotation link in a first direction or a second direction, characterized in that the ottoman device further includes a lock device (21) for prohibiting or allowing the rotation of the first rotation link, the lock device being attached to the first rotation link at a rotational center thereof.
Description
Technical field
Present invention relates in general to a kind of Ottoman device (ottoman device), the extended the place ahead of its footstool main body to seat, or be received in the seat.
Background technology
According to disclosed a kind of known Ottoman device among the 2000-201772A, the screw that is positioned at under-seat by rotation makes nut move up in the front and back of seat, and by the pivot link that shakes a master connecting-rod that connects with nut and comprise a linkage, the attitude of footstool main body is adjusted between receiving state and deployed condition.
Because Ottoman device has screw, so that adjust and support the position of footstool main body, under-seat need be provided with big space, so that hold the footstool main body.Yet, if the space is limited, and need reduce the distance from the vehicle floor to the seat surface, be difficult to such Ottoman device is contained in under-seat.
In addition, Ottoman device has a kind of like this structure, and wherein two pivot links and master connecting-rod support along the place ahead of footstool main body or the below imposes on an excessive external force of footstool main body.Under these circumstances, nut and screw joint, so that do not move up in the front and back of seat, yet, because master connecting-rod be connected on the nut from but rotating, when external force edge direction forward is applied on the footstool main body,, just can support the main body of footstool and the attitude of maintenance footstool main body only by utilizing the rigidity of connecting rod.This is not to be locked on the specific part because all connecting rods connect rotationally each other.Therefore, in order to ensure the support strength of footstool main body, each connecting rod needs thickening basically.
In addition,, need to be provided with longer pivot link, and need to shorten the gap between the pivot link for the footstool main body is deployed into the top position.Therefore, more be difficult to keep the attitude of footstool main body.
Therefore need provide a kind of Ottoman device, it can guarantee the support strength of footstool main body rightly.
Disclosed another kind of Ottoman device forwards launches a footstool main body that is contained in under-seat by means of a kind of quadric chain among the JP06-031967Y.Particularly, Ottoman device comprises a mechanical locking (an axostylus axostyle locking device) with a compression spring, and the top ends of footstool main body is connected to the bottom of a seat cushion by this compression spring.When mechanical locking by means of a release lever (actuating element) during release, the footstool main body is shaken and is launched to seat the place ahead.On the other hand, be in deployed condition and during by the release lever release, under-seat is shaken and be contained in to the footstool main body when Ottoman device.
In this structure because when the position of footstool main body when receiving state becomes deployed condition, this footstool main body is rotated, along with the expansion of the bar of locking device, compression spring elongation, and biasing force (spring force) becomes more and more littler.
On the other hand, as shown in Fig. 2 and Fig. 5 of JP06-031967Y, relatively when the footstool main body is in deployed condition and when the footstool main body is in receiving state, angle between the action direction of center of rotation A1 (center of rotation B1) and compression spring, these angles much at one, the angle when perhaps the angle during deployed condition is than receiving state is little.
In addition, in order to rise footstool main body (to launch the footstool main body) by the biasing force that utilizes the compression spring, when the footstool main body is in deployed condition, be the gravitational moment that is equal to or greater than the footstool main body by near the torque setting of biasing force generation center of rotation (A1 or B1).
Like this, when manpower was taken in the footstool main body, along with the compression spring is compressed, it is increasing that biasing force becomes, thereby need big operating physical force to take in the footstool main body.
Summary of the invention
According to an aspect of the present invention, a kind of Ottoman device comprises: a pivot link, it is supported on the front end of a seat rotationally, so that support a footstool main body, rotate towards first direction and second direction according to this pivot link, this footstool main body is deployed into the place ahead of seat or is accommodated in the seat, it is characterized in that: described Ottoman device further comprises a locking device that is used to stop or allow this pivot link rotation, and this locking device is installed on this pivot link at the center of rotation place of this pivot link.
Description of drawings
By the detailed description of carrying out below with reference to accompanying drawing, above-mentioned and further feature of the present invention and characteristics will be more obvious.
Fig. 1 shows the side view according to the Ottoman device of first embodiment of the invention;
Fig. 2 shows the opposite side view according to the Ottoman device of first embodiment of the invention;
Fig. 3 is the sectional view of the Ottoman device shown in Fig. 2 along the III-III line;
Fig. 4 shows the vertical view of the Ottoman device of first embodiment;
Fig. 5 shows the inclined stereo figure of the Ottoman device of first embodiment;
Fig. 6 is the schematic diagram of Vehicular seat device;
Fig. 7 shows the relation curve between the angle of spread, biasing force and the moment of torsion;
Fig. 8 shows the side view according to the Ottoman device of second embodiment of the invention;
Fig. 9 shows the opposite side view according to the Ottoman device of second embodiment of the invention;
Figure 10 is the sectional view of the Ottoman device shown in Fig. 8 along the X-X line; And
Figure 11 shows the relation curve between the angle of spread, biasing force and the moment of torsion.
The specific embodiment
(first embodiment)
The first embodiment of the present invention is described below with reference to the accompanying drawings.Fig. 6 illustrates a side view, and it schematically shows one and has used Vehicular seat device 1 of the present invention.Particularly, Vehicular seat device 1 can be used as a chair mounted on the vehicle such as automobile.
As shown in Figure 6, Vehicular seat device 1 comprises a seat cushion 2 and Ottoman device 3.Particularly, be formed with a spatial accommodation 2a on the seat cushion 2, so that the bottom is backwards to expansion in the past, and Ottoman device 3 is by supporting with the mode of the corresponding seat cushion 2 of spatial accommodation 2a with explanation subsequently.
When Ottoman device 3 was positioned at as shown in Figure 6 receiving state, Ottoman device 3 was positioned to be contained in just among the 2a of space.On the other hand, when Ottoman device 3 was in deployed condition, Ottoman device 3 was deployed in the place ahead of seat cushion 2.
Fig. 1 shows the side view of the Ottoman device 3 that is in deployed condition.Fig. 2 illustrates the side view of the Ottoman device 3 that is in receiving state.Each side view is all observed along the left side in Vehicular seat device 1 the place ahead and is obtained.As depicted in figs. 1 and 2, Vehicular seat device 1 comprises the seat support 4 that is positioned at seat cushion 2 front ends, so that support seat cushion 2.Fig. 3 shows along the cross section of the Ottoman device of the III-III line among Fig. 2.Fig. 4 shows the vertical view of the Ottoman device that is in deployed condition.As shown in Figure 3 and Figure 4, an installation bracket 5 and an installation bracket 6 are fixed on the seat support 4 on seat width (left and right directions among Fig. 3) in couples.As shown in Figure 4, Ottoman device 3 comprises a footstool main body 10, pair of links device 11 and a pair of draft helical spring 12.Particularly, when footstool main body 10 was in deployed condition, it was as toe board.The linkage 11 that is arranged on the left-hand side is connected on the installation bracket 5, is connected on the installation bracket 6 and be arranged on dexter another linkage 11, so that support footstool main body 10.Draft helical spring 12 is all as biasing device (biasing means).
More specifically, the linkage 11 that is arranged on the left-hand side (be arranged among Fig. 4 top) in Vehicular seat device 1 the place ahead comprises that a main pivot link 13, one are arranged on the secondary pivot link 15 on the left-hand side, first rocking bar 16 and second rocking bar 17 that is arranged on the left-hand side that is arranged on the left-hand side.Particularly, main pivot link 13 is as first pivot link, and it is supported by installation bracket 5 by means of locking device 21, and secondary pivot link 15 is used as second pivot link, and it is supported rotationally by installation bracket 5.Locking device 21 is used for allowing and stops the rotation of (the locking and unlocking) main pivot link 13 with respect to installation bracket 5.
The linkage 11 that is arranged in the right-hand side (Fig. 4 is arranged on the below) in Vehicular seat device 1 the place ahead has and identical structure and the dynamic property of connecting rod that is arranged on the left side.Particularly, the linkage 11 that is arranged on towards the right in Vehicular seat device the place ahead comprises a main pivot link 14 that replaces main pivot link 13.Main pivot link 14 is as first pivot link by installation bracket 6 rotational support.
Be molded into the locking device 21 except main pivot link 13 forms, main pivot link 13 forms identical shape with 14.
Because except main pivot link 13 and 14, each linkage 11 forms identical shape, and the structure of the linkage 11 that is arranged on the left-hand side will only be described below.The parts that are arranged on the linkage 11 of right-hand side are marked in the parantheses.
The first end 17a of second rocking bar 17 is supported rotationally by the first end 15a of secondary pivot link 15, the second end 17b of second rocking bar 17 is supported by the second end 18b (the second end 18b has been shown among Fig. 5) of Support bracket 18, and the mid portion 17c of second rocking bar 17 is pivotally connected to the mid portion 13b (14b) of main pivot link 13 (14).
Particularly, footstool main body 10 is connected to the front end (installation bracket 5 and 6) of seat by linkage 11, and linkage 11 comprises the mechanism of a so-called X-arm type, so that adjust the actuating of footstool main body 10 between receiving state and deployed condition.
For example, when footstool main body 10 is in as shown in Figure 1 deployed condition, and when secondary pivot link 15 rotated towards a direction (counter clockwise direction among Fig. 1), main pivot link 13 (14) is (counter clockwise direction among Fig. 1) rotation also in the same direction by means of second rocking bar 17.Then, the second end 17b of the second end 16b of first rocking bar 16 and second rocking bar 17 moves towards the seat rear with first rocking bar 16 and second rocking bar, 17 folding modes.Therefore, as shown in Figure 2, be accommodated in the spatial accommodation 2a by first and second rocking bars 16 and the 17 footstool main bodys 10 that support.
On the other hand, when footstool main body 10 is in as shown in Figure 2 receiving state, and when secondary pivot link 15 rotated towards other direction (clockwise direction among Fig. 2), main pivot link 13 (14) was by means of (clockwise direction among Fig. 2) rotation also in the same direction of second rocking bar 17.Then, the second end 17b of the second end 16b of first rocking bar 16 and second rocking bar 17 moves towards seat the place ahead in the mode that first rocking bar 16 and second rocking bar 17 launch.Therefore, be deployed into the place ahead of seat by first and second rocking bars 16 and the 17 footstool main bodys 10 that support.
In the present embodiment, will be used to adjust and keep the back of seat with respect to the multipurpose latching/delatching mechanism (so-called recliner mechanism) of the angle of seat cushion as locking device 21.The structure of locking device 21 roughly is described below.Locking device 21 comprises an outer cylinder part, an inner cylinder part and a locking piece.Particularly, the outer cylinder portion branch forms to have the bottom and is connected to the cylindrical shape of installation bracket 5 so that coaxial with center of rotation O1, the inner cylinder part also form have the bottom, by the outer cylinder portion sub-support and be connected to the cylindrical shape of main pivot link 13.Relatively rotating of locking piece permission and prevention outer cylinder part and inner cylinder part.Fig. 5 shows the inclined stereo figure of Ottoman device 3.As shown in Figure 5, installation bracket 5 supports a release lever 25 that engages with the locking piece of locking device 21.More specifically, by along with release lever 25 rotates and locking piece is activated towards a direction or other direction, locking device 21 allows and stops relatively rotating between outer cylinder part and the inner cylindrical section branch, in other words, and relatively rotating between installation bracket 5 and the main pivot link 13.Locking piece basically by a bias piece (not shown) along stoping direction bias voltage in relative rotation.
As shown in Figure 5, be provided with a control stick 23 in the left side (left forward side of Vehicular seat device 1) of seat front end.Particularly, control stick 23 is connected to release lever 25 by means of transmitting cable 24, and structure thus, and when manipulation bar 23, the operating physical force of control stick 23 transmits by means of transmitting cable 24, and release lever 25 rotates towards a direction subsequently.On the other hand, when discharging control stick 23, release lever 25 rotates towards other direction, so that be returned to its initial position.Particularly, when handling control stick 23, by means of locking device 21, allow of the rotation of main pivot link 13, so that footstool main body 10 is adjusted to the appropriate location with respect to installation bracket 5.On the other hand, when discharging control stick 23, by means of locking device 21, stop of the rotation of main pivot link 13, so that footstool main body 10 is remained on the appropriate location with respect to installation bracket 5.
The main pivot link 13 and the main pivot link 14 that connect with the inner cylindrical member of locking device 21 also are connected to torque rod 22, so that form as one with it, torque rod 22 forms cylindrical, and extend in the mode that its axis extends along the seat width direction.The position of the axis of torque rod 22 and center of rotation O1 are inequality, and in other words, the axial location of torque rod 22 departs from center of rotation O1 in the axial direction.
The rotation of main pivot link 13 is delivered to main pivot link 14 by torque rod 22, so that for example rotate main pivot link 13 and main pivot link 14 together.In addition, when not rotating by the main pivot link 13 of locking device 21 controls, the locking device 21 that is connected to main pivot link 13 has also stoped the rotation of main pivot link 14.Particularly, in the present embodiment, be provided with single locking device on main pivot link 13, it can allow and stop the two rotation of main pivot link 13 and main pivot link 14.In addition, by means of the torque rod of making by simple rigid body 22, the rotation of main pivot link 13 has been delivered to main pivot link 14.
Be provided with a pair of helical spring 12 between installation bracket 5 and installation bracket 6 and left secondary pivot link 15 and right secondary pivot link 15, it is set to this and 12 pairs of these footstool main bodys 10 of helical spring are applied biasing force (spring force) makes footstool main body 10 launch towards seat the place ahead.Particularly, as shown in Figure 4 and Figure 5, an end of installation bracket 5 is formed with a groove 5a, and an end of installation bracket 6 is formed with a groove 6a.Be provided with a seat engaging lever 2 between installation bracket 5 and installation bracket 6, an end of this seat engaging lever 26 engages with groove 5a, and the other end of seat engaging lever 26 engages with groove 6a.Be provided with a connecting rod engaging lever 27 between the left and right secondary pivot link 15, an end of connecting rod engaging lever 27 is connected to a secondary pivot link 15 that is arranged on the left-hand side, and the other end of connecting rod engaging lever 27 is connected to and is arranged on dexter another secondary pivot link 15.As shown in Figure 4, connecting rod engaging lever 27 forms approximate C shape, so that it is outstanding towards seat the place ahead, and each helical spring 12 is arranged between connecting rod engaging lever 27 and the seat engaging lever 26 as follows: an end of helical spring 12 (carbine 12a) engages with seat engaging lever 26, and the other end of helical spring 12 (carbine 12b) engages with connecting rod engaging lever 27.Helical spring 12 is arranged to along the seat width direction roughly symmetrical.Because helical spring 12 is set is in order to apply biasing force, it in axial direction to be stretched, and as depicted in figs. 1 and 2, helical spring 12 under the receiving state all is deployed into its maximum length, and in Fig. 2, along with secondary pivot link 15 rotates toward the clockwise direction, its length shortens gradually.These helical springs 12 can be assisted the expansion of footstool main body 10 by its biasing force.
As depicted in figs. 1 and 2, the biasing force of supposing helical spring 12 is " P ", distance between the application point of biasing force P (abutment between carbine 12b and the connecting rod engaging lever 27) and the center of rotation O2 is " L ", the straight line that connects center of rotation O2 and footstool main body 10 front ends is " α " with respect to the angle of the receiving state of footstool main body 10, and the angle that connects between the position (straight line that is connected carbine 12a and carbine 12b) of straight line and biasing force P of application point of center of rotation O2 and biasing force P is " θ ".
Because when footstool main body 10 is accommodated in under-seat, along with secondary pivot link 15 rotates along the counter clockwise direction among Fig. 1, helical spring 12 is stretched and is elongated gradually, along with secondary pivot link 15 rotates towards counter clockwise direction, in other words, along with diminishing of start point α, biasing force P is dull to be increased.Particularly, as shown in Figure 1, when footstool main body 10 was in deployed condition, this moment, angle of spread α became maximum (α), and biasing force P becomes minimum of a value P2.On the other hand, as shown in Figure 2, when footstool main body 10 is in receiving state, when this moment, angle of spread α became zero degree, biasing force P became maximum P1.
In the present embodiment, the application point of biasing force P, position etc. are set as follows: when Ottoman device was in angle of spread α and is the deployed condition of maximum (α), angle θ became maximum θ 2; When Ottoman device was in angle of spread α and is the receiving state of zero degree, angle θ became minimum of a value θ 1, and reduces monotonously to receiving state angle θ from deployed condition.In this case, can obtain the torque T of secondary pivot link 15 by following formula based on biasing force P.
T＝P*L*sinθ
Therefore, can obtain the torque T 2 that is in the torque T 1 of receiving state and is in deployed condition by following formula.
T1＝P1*L*sinθ1
T2＝P2*L*sinθ2
(0＜sinθ1＜sinθ2≤1)
Along with reducing of angle of spread α, biasing force P increases monotonously and angle θ (sin θ) reduces monotonously, and according to these values, as shown in Figure 7, the change of torque T can be constrained to equilibrium generally and take in footstool main body 10 necessary operations power (torque T).
The following describes the operation of Ottoman device 3.When footstool main body 10 is positioned at receiving state shown in Figure 2, and by handling control stick 23 by transmitting cable 24 operation release levers 25 when a direction is rotated, locking device 21 allows main pivot link 13 to rotate with respect to installation bracket 5.Then, helical spring 12 assists secondary pivot link 15 to rotate towards a direction (clockwise direction among Fig. 2).Along with the rotation of secondary pivot link 15, the main pivot link 13, main pivot link 14, first rocking bar 16 and second rocking bar 17 that constitute linkage 11 rotate, and consequently, footstool main body 10 is automatically launched towards seat the place ahead.As mentioned above, the rotation of the main pivot link 13 that causes along with actuating (rotation of secondary pivot link 15) by linkage 11, main pivot link 14 is also rotated by the effect of torque rod 22.
When discharging control stick 23, release lever 25 rotates (being returned to its initial position) by means of transmitting cable 24 towards other direction, and locking device 21 stops the rotation of main pivot link 13 with respect to installation bracket then.Then, footstool main body 10 remains on deployed condition.As mentioned above, along with the rotation of main pivot link 14, main pivot link 13 is also rotated by the effect of torque rod 22.
On the other hand, when footstool main body 10 is in as shown in Figure 1 deployed condition, and make release lever 25 when a direction is rotated by handling control stick 23 by transmitting cable 24, locking device 21 allows main pivot link 13 to rotate with respect to installation bracket 5.At this moment, when footstool main body 10 was pressed to down the rear, secondary pivot link 15 resisted the biasing force of helical spring 12 and rotates towards other direction (counter clockwise direction among Fig. 1).Along with the carrying out of this operation, footstool main body 10 is contained in the bottom of seat fore-end.Structure thus, it is balanced generally that footstool main body 10 is accommodated in under-seat necessary operations power (torque T).In addition, as mentioned above, by discharging control stick 23, footstool main body 10 remains on receiving state.
According to first embodiment, obtain following effect.
In first embodiment, when footstool main body 10 was accommodated in under-seat, along with secondary pivot link rotates towards other direction, the biasing force P of helical spring 12 increased monotonously.On the other hand, although biasing force P is along with secondary pivot link 15 increases monotonously towards the rotation of other direction, because the angle θ (sin θ) between the straight line of the center of rotation O2 of auxiliary connection pivot link 15 and the application point of biasing force P and the position of biasing force P reduces monotonously, be used to make secondary pivot link 15 to be restricted towards the increase of the torque T of a direction rotation.Therefore, footstool main body 10 being accommodated in under-seat necessary operations power (torque T) is balanced generally.
In first embodiment and since secondary pivot link 15 by means of helical spring 12 bias voltage so that stretch towards seat the place ahead, footstool main body 10 can be launched automatically.
(second embodiment)
The second embodiment of the present invention is described with reference to the accompanying drawings.Among second embodiment, use torsion spring (torsion-coil spring) to replace a pair of draft helical spring 12 among first embodiment.Remainder is identical with first embodiment, ignores explanation to it at this.
Fig. 8 shows the side view of the Ottoman device 30 that is in deployed condition.Fig. 9 shows the side view of the Ottoman device 30 that is in receiving state.Each side view all is to observe from the left side of vehicle front.As depicted in figs. 1 and 2, Vehicular seat device 1 comprises a seat support 4 that is positioned at the front end of seat cushion 2, so that support seat cushion 2.Figure 10 shows the sectional view of the Ottoman device 30 shown in Fig. 8 along the X-X line.As shown in figure 10, an installation bracket 31 and an installation bracket 32 are fixed to seat support 4, make that (left and right directions among Figure 10) is paired on the seat width.In addition, Ottoman device 30 comprises: a footstool main body 10; Play the pair of links device 33 of linkage 11 effects among first embodiment; And torsion spring 37 that plays the biasing device effect.
More specifically, the linkage 33 that is arranged on the left-hand side, the place ahead (being arranged on the front side on the direction with Fig. 8 paper quadrature) of Vehicular seat device 1 comprises: a main pivot link 34, and it is supported by installation bracket 31 by means of locking device 21; A secondary pivot link 36, it is supported rotationally by installation bracket 31; First rocking bar 16 that is arranged on the left-hand side; And second rocking bar 17 that is arranged on the left-hand side.Be positioned at Vehicular seat device 1 the place ahead right-hand side (be arranged on Fig. 8 orthogonal direction on the rear portion) linkage 33 have be arranged on the left side identical structure and the dynamic characteristics of linkage.Particularly, the linkage 33 that is arranged on the right-hand side of Vehicular seat device the place ahead comprises that a main pivot link 35 is to replace main pivot link 34.Main pivot link 35 is supported rotationally by installation bracket 32.
(upper left among Fig. 8) supported by an installation bracket 31 main pivot link 34 in the one end, and (upper left among Fig. 8) supported by installation bracket 32 main pivot link 35 in the one end, and main pivot link 34 and 35 includes a center of rotation O1.Particularly, except locking device 21 joined main pivot link 34 to, main pivot link 34 formed the shape identical with main pivot link 35.
(lower right-most portion of the installation bracket 31 (32) among Fig. 8) supported by installation bracket 31 (32) secondary pivot link 36 with center of rotation O2 in the one end.The guidance surface 36a that is formed on secondary pivot link 36 bottom surfaces is smooth, and along the longitudinal extension of secondary pivot link 36, thereby an end of torsion spring 37 moves along guidance surface 36a.
The main pivot link 34 and the main pivot link 35 that are connected with the inner cylindrical member of locking device 21 also are connected to a torque rod 38, make and become one with it, torque rod 38 forms cylindrical, and with its axis---this axis is identical with center of rotation O1---upwardly extending mode is extended along seat width side.As shown in figure 10, torsion spring 37 is set in place in the installation bracket 32 of left-hand side and between dexter secondary pivot link 36.Torsion spring 37 is applied to biasing force on the footstool main body 10, makes footstool main body 10 launch towards seat the place ahead.As shown in figure 10, torque rod 38 is arranged to pass the spiral part 37c of torsion spring 37.
Particularly, an end of installation bracket 32 is formed with a groove 32a, and the carbine 37a that is arranged on torsion spring 37 1 ends engages with groove 32a.On the other hand, the mode that is crimped on carbine 37b on the guidance surface 36a of secondary pivot link 36 of the carbine 37b of torsion spring 37 other ends engages with secondary pivot link 36.More specifically, as shown in figure 10, torsion spring 37 is arranged on the seat width direction and extends, and is positioned to torque rod 38 coaxial, the other end (carbine 37b) of one end of torsion spring 37 (carbine 37a) and torsion spring 37 separates on the seat width, and engages in aforesaid mode.Torsion spring 37 circumferentially applies biasing force along it, so that secondary pivot link 36 rotates towards a direction (clockwise direction among Fig. 8).As Fig. 8 and shown in Figure 9, when footstool main body 10 was in receiving state, torsion spring 37 was received the most tightly, and when footstool main body 10 was in deployed condition, torsion spring 37 was the most lax.When footstool main body 10 was launched towards seat the place ahead, along with secondary pivot link 36 rotates towards a direction, torsion spring 37 unclamped gradually, so that assisted the expansion of footstool main body 10 by its biasing force.
As Fig. 8 and shown in Figure 9, the biasing force of supposing torsion spring 37 is " P ", distance between the application point of biasing force P (abutment between carbine 37b and the secondary pivot link 36) and the center of rotation O2 is " L ", the straight line of the front end of connection center of rotation O2 and footstool main body 10 is " α " with respect to the angle of the receiving state of footstool main body 10, and with the straight line of the straight line quadrature of the application point that is connected center of rotation O2 and biasing force P and the position of biasing force P (along center of rotation O1 circumferentially, in other words, promptly with the straight line of the straight line quadrature of bonding station that is connected carbine 37b and center of rotation O1) between angle be " θ ".
Because when footstool main body 10 is contained in under-seat, along with secondary pivot link 36 rotates along counter clockwise direction among Fig. 8, torsion spring 37 progressively tightens, along with secondary pivot link 36 rotates in the counterclockwise direction, in other words promptly along with the reducing of angle of spread α, biasing force P increases monotonously.Especially, as shown in Figure 8, when footstool main body 10 was in angle of spread α and is the deployed condition of maximum (α), biasing force P became minimum of a value P2.On the other hand, as shown in Figure 9, when footstool main body 10 was in angle of spread α and is the receiving state of zero degree, biasing force P became maximum P1.At this moment, as Fig. 8 and shown in Figure 9, change slightly in the scope of angle θ between angle θ 2 and angle θ 1.
In the present embodiment, the application point of biasing force P, position etc. are set to: when Ottoman device was in start point α and is the deployed condition of maximum (α), length L became maximum L2; And when Ottoman device was in start point α and is the receiving state of zero degree, length L became minimum of a value L1, and reduces monotonously to receiving state angle θ from deployed condition.
In this case, can obtain the torque T of secondary pivot link 36 by following formula based on biasing force P.
T＝P*L*cosθ
Therefore, the torque T 2 that obtains to be in the torque T 1 of receiving state and be in maximum deployed condition by following formula.
T1＝P1*L1*cosθ1
T2＝P2*L2*cosθ2
(L1＞L2)
Along with reducing of start point α, biasing force P increases monotonously and the distance L of control torque T reduces monotonously, and based on these values, as shown in figure 11, the variation of torque T is restricted generally, makes to take in 10 necessary operations power (torque T) equilibriums of footstool main body.
The following describes the operation of Ottoman device 30.When footstool main body 10 is in receiving state shown in Figure 9, and make it when a direction is rotated by handling control stick 23 by transmitting cable 24 operation release levers 25, locking device 21 allows main pivot link 34 to rotate with respect to installation bracket 31.Then, torsion spring 37 assists secondary pivot link 36 to rotate towards a direction (clockwise direction among Fig. 9).Along with the rotation of secondary pivot link 36, torsion spring 37 discharges, and the nose motion of the carbine 37b of torsion spring 37 along secondary pivot link 36 towards secondary pivot link 36.In addition, the main pivot link 34, main pivot link 35, first rocking bar 16 and second rocking bar 17 that constitute linkage 33 rotate, and consequently, footstool main body 10 is launched automatically towards seat the place ahead.As mentioned above, the rotation of the main pivot link 34 that causes along with actuating (rotation of secondary pivot link 36) by linkage 33, main pivot link 35 also rotates by torque rod 38.
When discharging control stick 23, release lever 25 rotates (being returned to its initial position) by means of transmitting cable 24 towards other direction, and locking device 21 stops the rotation of main pivot link 31 with respect to installation bracket 31 then.Then, footstool main body 10 remains on deployed condition.As mentioned above, along with the rotation of main pivot link 34, main pivot link 35 also rotates by means of torque rod 38.
On the other hand, when footstool main body 10 is in as shown in Figure 8 deployed condition, and pass through and transmit cable 24 and make release lever 25 when a direction is rotated by handling control stick 23, locking device 21 allows main pivot link 34 with respect to installation bracket 31 rotations.At this moment, when footstool main body 10 was pressed towards the back lower place, secondary pivot link 36 was resisted the biasing force of torsion springs 37 and is rotated towards other direction (counter clockwise direction among Fig. 8).Along with the rotation of secondary pivot link 36, torsion spring 37 is tensioned, and the carbine 37b of torsion spring 37 moves towards the rear end (towards center of rotation O2) of secondary pivot link 36 along secondary pivot link 36.Along with this action, footstool main body 10 is contained within the bottom of seat leading section.Structure thus, as mentioned above, making footstool main body 10 be returned to under-seat necessary operations power (torque T) is balanced generally.In addition, as mentioned above, footstool main body 10 can be remained on receiving state by discharging control stick 23.
In a second embodiment and since secondary pivot link 15 by means of torsion spring 37 bias voltage, launching towards the place ahead of seat, footstool main body 10 can be launched automatically.
In a second embodiment, when footstool main body 10 was accommodated in under-seat, along with auxiliary connecting rod 36 rotates towards other direction, the biasing force P of torsion spring 37 increased monotonously.
On the other hand, although along with secondary pivot link 36 rotates towards other direction, biasing force P increases monotonously, because the distance L between the center of rotation O2 of secondary pivot link 36 and the application point of biasing force P reduces monotonously, be used to make secondary pivot link 36 to be restricted towards the increase of the torque T of a direction rotation.Therefore, footstool main body 10 being accommodated in under-seat necessary operations power (torque T) is balanced generally.
Therefore, second embodiment has obtained the effect roughly the same with first embodiment.First and second embodiment can change as following mode.
In first embodiment, used draft helical spring 12, yet, can alternatively use compression helical spring, as long as it applies the feasible seat the place ahead that is deployed into of biasing force to footstool main body 10.
In first embodiment, be provided with two helical springs 12, yet a single helical spring 12 can be set, three or more helical springs perhaps is set alternatively.In a second embodiment, the carbine 37a of torsion spring 37 engages with secondary pivot link 36 (guidance surface 36a), and carbine 37b also can engage with installation bracket 31, as long as it applies biasing force to footstool main body 10 and makes it be deployed into seat the place ahead.
In first embodiment, 12 pairs of secondary pivot links 15 of helical spring apply biasing force, yet helical spring 12 also can apply biasing force to main pivot link 13 and 14.In a second embodiment, 37 pairs of secondary pivot links 36 of torsion spring apply biasing force; Yet torsion spring 37 also can apply biasing force to main pivot link 34 and 35.
In first embodiment and second embodiment, the biasing force P that is under the receiving state can be made as negative value.Particularly, along with footstool main body 10 is changed towards receiving state, helical spring (12,37) can overturn (turn over) to set a power that is used to keep receiving state.In this case, although footstool main body 10 needs artificial the expansion, reduced owing to maloperation control stick 23 makes the possibility that footstool main body 10 is moved towards a opposite way round.
In first embodiment and second embodiment, by utilizing the biasing force of helical spring 12 or torsion spring 37, footstool main body 10 can be launched by a less operating physical force.
In first embodiment and second embodiment, locking device can be arranged on main pivot link 14 (installation bracket 6) and the main pivot link 35 (installation bracket 32), and is not arranged on main pivot link 13 (installation bracket 5) or the main pivot link 34 (installation bracket 31).
In first embodiment and second embodiment, locking device 21 can be arranged on the secondary pivot link 15 or secondary pivot link 36 on.
In this case, secondary pivot link 15 is integrally connected on another secondary pivot link 15 by means of torque rod, and a secondary pivot link 36 is integrally connected on another secondary pivot link 36 by means of a torque rod.
In first embodiment and second embodiment, operating physical force (locking releasing operation power) for example can fax be delivered to locking device 21 (release lever 25).In first embodiment and second embodiment, can use the locking device 21 of another type.
In first embodiment and second embodiment, linkage 11 and linkage 33 include an X-arm type mechanism, yet, also can use the mechanism of another type.The present invention can be applicable to for example train seat of another kind of seat.
According to the present invention, locking device can stop or allow the rotation of pivot link, and they are different with disclosed Ottoman device among the 2000-201772A, and wherein connecting rod all connects rotationally.
Particularly, because the footstool main body is supported by the locking device of the center of rotation that is installed on pivot link, with respect to the Support Position of disclosed footstool main body among the 2000-201772A, the Support Position is set forwardly.
Therefore, even be in deployed condition and when the footstool main body applied external force when the footstool main body, the distance in the footstool main body becomes than 2000-201772A by position of locking device control and the distance between the external force in the disclosed footstool main body is short.Therefore, reduced the moment of torsion that on pivot link, produces.
Therefore, in the present invention, can suitably guarantee the support strength of pivot link to the footstool main body.
Among the present invention,, can further guarantee the support strength of pivot link on the seat width to the footstool main body because pivot link is provided with in pairs.
In addition, according to the present invention, on a pivot link locking device is set, so that stop and allow it to rotate, and the rotation of main pivot link is sent to main pivot link by means of the torque rod of being made by simple rigid body.Like this, reduced number of components.
In the present invention, biasing device launches because the footstool main body is based on, so it can be automatically or be promptly deployable with very little operating physical force.
In the present invention,, can simplify the installation of linkage, perhaps simplify the installation of Ottoman device because a pair of pivot link that is connected by torque rod is positioned at the innermost position of linkage.
According to the present invention, when being accommodated in the footstool main body in the seat, along with pivot link rotates towards other direction, the biasing force that biasing device applied increases monotonously.
On the other hand, although along with pivot link rotates towards other direction, biasing force increases monotonously, is used for the increase of pivot link towards the torque T of a direction rotation is restricted.Therefore, hold footstool main body 10 necessary operations power and further be able to equilibrium generally.
Claims (7)
1. an Ottoman device (3,30) comprising:
One first pivot link (13,14,34,35), it is supported on the front end of a seat rotationally, to support a footstool main body (10), according to the rotation of this first pivot link towards first direction and second direction, this footstool main body is deployed into the place ahead of this seat or is accommodated in this seat
It is characterized in that: described Ottoman device further comprises a locking device (21) that is used to stop or allow this first pivot link rotation, and this locking device is installed on this first pivot link at the center of rotation place of this first pivot link.
2. Ottoman device as claimed in claim 1, wherein on this seat width direction, be provided with two these first pivot links in pairs, this locking device is set on one of them of this first pivot link, and is provided with a torque rod (22) so that one first pivot link is connected to another first pivot link.
3. Ottoman device as claimed in claim 2, it further comprises a biasing device (12,37), is used for footstool body bias the place ahead to seat.
4. as claim 2 or 3 described Ottoman devices, it further comprises linkage (11,33), and this linkage comprises this to first pivot link, the inner side that should be positioned at this linkage to first pivot link that is connected with this torque rod.
5. Ottoman device as claimed in claim 1, it further comprises a biasing device (12,37), this biasing device is set to the one end and engages with the front end of this seat, and the other end of this biasing device and one second pivot link (15,36) engage, make on this second pivot link that this footstool main body is deployed into the place ahead of this seat so that biasing force is applied to, wherein the biasing force that applies of this biasing device is set at when being accommodated in the footstool main body in the seat, along with this second pivot link rotates along this second direction, this biasing force increases monotonously, with this biasing device be installed as be used for along with this second pivot link along the rotation of this second direction and reduce to make the increase of the moment of torsion that this second pivot link is rotated in a first direction.
6. Ottoman device as claimed in claim 5, wherein this biasing device comprises a helical spring along the axial generation biasing force of this biasing device, and this biasing device is installed as: along with the rotation of this second pivot link along this second direction, connect the straight line of application point of the center of rotation of this second pivot link and biasing force and the angle between this bias voltage line of action of force and reduce monotonously.
7. Ottoman device as claimed in claim 5, wherein, this biasing device comprises a helical spring along the circumferential generation biasing force of biasing device, and this biasing device is installed as: along with the rotation of this second pivot link along this second direction, the distance between the center of rotation of this second pivot link and the application point of this biasing force reduces monotonously.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005012067 | 2005-01-19 | ||
| JP2005012068 | 2005-01-19 | ||
| JP2005012067A JP2006198104A (en) | 2005-01-19 | 2005-01-19 | Ottoman device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1806720A true CN1806720A (en) | 2006-07-26 |
| CN100574674C CN100574674C (en) | 2009-12-30 |
Family
ID=36838942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610006906A Active CN100574674C (en) | 2005-01-19 | 2006-01-19 | Ottoman device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006198104A (en) |
| CN (1) | CN100574674C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551394A (en) * | 2010-12-06 | 2012-07-11 | 丰田纺织株式会社 | Footrest device |
| CN104002711A (en) * | 2013-02-25 | 2014-08-27 | 日本发条株式会社 | Stool device and vehicle seat |
| CN105231707A (en) * | 2015-09-25 | 2016-01-13 | 东莞致诚办公家具有限公司 | Chair with foot rest |
| CN109171279A (en) * | 2018-10-25 | 2019-01-11 | 浙江好习惯科技有限公司 | Foot-operated flexible intelligent chair |
| CN109310210A (en) * | 2016-03-11 | 2019-02-05 | 因诺泰克运动有限公司 | Foot support skeleton for being fixed on chair skeleton |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5767001B2 (en) * | 2011-04-08 | 2015-08-19 | 備前発条株式会社 | Ottoman equipment |
| JP5734066B2 (en) * | 2011-04-12 | 2015-06-10 | 備前発条株式会社 | Ottoman equipment |
| JP5949096B2 (en) | 2012-04-25 | 2016-07-06 | アイシン精機株式会社 | Ottoman equipment |
| JP5906933B2 (en) * | 2012-05-09 | 2016-04-20 | アイシン精機株式会社 | Fixing structure of ottoman device |
| KR101592723B1 (en) | 2014-07-04 | 2016-02-15 | 현대자동차주식회사 | Leg rest device |
| KR101827419B1 (en) | 2016-10-17 | 2018-02-09 | 현대다이모스(주) | Leg rest with distortion prevention |
| JP2022030153A (en) * | 2020-08-06 | 2022-02-18 | トヨタ車体株式会社 | Ottoman device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6234513A (en) * | 1985-08-09 | 1987-02-14 | 丸菱工業株式会社 | Chair with footrest |
| JPH0672191B2 (en) * | 1987-01-12 | 1994-09-14 | 三井東圧化学株式会社 | Method for modifying polyolefin |
| JPH08266370A (en) * | 1995-03-31 | 1996-10-15 | Tachi S Co Ltd | Interlocked footrest for swing seat |
| JP2002362200A (en) * | 2001-06-07 | 2002-12-18 | Fuji Kiko Co Ltd | Seat lifter |
-
2005
- 2005-01-19 JP JP2005012067A patent/JP2006198104A/en active Pending
-
2006
- 2006-01-19 CN CN200610006906A patent/CN100574674C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102551394A (en) * | 2010-12-06 | 2012-07-11 | 丰田纺织株式会社 | Footrest device |
| CN102551394B (en) * | 2010-12-06 | 2015-04-08 | 丰田纺织株式会社 | Footrest device |
| CN104002711A (en) * | 2013-02-25 | 2014-08-27 | 日本发条株式会社 | Stool device and vehicle seat |
| CN105231707A (en) * | 2015-09-25 | 2016-01-13 | 东莞致诚办公家具有限公司 | Chair with foot rest |
| CN109310210A (en) * | 2016-03-11 | 2019-02-05 | 因诺泰克运动有限公司 | Foot support skeleton for being fixed on chair skeleton |
| CN109310210B (en) * | 2016-03-11 | 2021-10-22 | 因诺泰克运动有限公司 | Foot support piece framework for fixing on seat furniture framework |
| CN109171279A (en) * | 2018-10-25 | 2019-01-11 | 浙江好习惯科技有限公司 | Foot-operated flexible intelligent chair |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006198104A (en) | 2006-08-03 |
| CN100574674C (en) | 2009-12-30 |
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Effective date of registration: 20230918 Address after: Kariya City, Aichi Prefecture, Japan Patentee after: TOYOTA BOSHOKU Kabushiki Kaisha Patentee after: Toyota Motor Corp. Address before: Aichi Prefecture, Japan Patentee before: AISIN SEIKI Kabushiki Kaisha Patentee before: Toyota Motor Corp. |