JP2019077272A - Slide body lock mechanism for arm rest - Google Patents

Abstract

To provide a slide body lock mechanism for an arm rest, the mechanism being designed such that in the arm rest having a lid with a slide body, operability is improved without unintended erroneous actuation of the slide body.SOLUTION: A slide body lock mechanism for an arm rest comprises: a first rotary body 81 and first stopper 41 (a first gravity sensing lock mechanism) that sense rotation of an arm rest 10 or a lid 20 and block action of a cam groove body and swing shaft (a push open mechanism) on a table 50 (a slide body) at a stored position 50A in a preset first angle region θ1 of a rotating angle of the arm rest 10 or lid 20; and a second rotary body 82 and second stopper (a second gravity sensing lock mechanism) that restrict slide movement of the table 50 from a use position 50B in a preset second angle region θ2 to the stored position 50A.SELECTED DRAWING: Figure 19

Description

  The present invention relates to a slide body locking mechanism for an armrest.

  DESCRIPTION OF RELATED ART Conventionally, the armrest which can be rotated between the standing-up position which stood up along the seat back, and the laid-down position which fell toward the seat surface is known (for example, patent document 1). The armrest in Patent Document 1 has a lid that can open and close the opening of the storage recess for the storage. The lid is opened and closed by pivoting in the same direction as the pivoting direction of the armrest. Here, the lid may have a slide body such as a table. Such a table is switched by sliding movement between a storage position accommodated in the lid and a use position exposed from the lid. Here, there is a mode in which the slide body such as the table is held at the storage position by the push open mechanism.

JP, 2016-97690, A

  However, when the slide body such as the table is in the use position, when the armrest is pivoted from the fall position to the upright position, there is a risk that the slide body may slide toward the storage position by its own weight. That is, when the armrest is returned to the fall position again, an erroneous operation may occur in which the table is in the accommodated position. In addition, if the armrest is brought to the upright position or the lid is opened with the slide body such as the table housed in the housing position, the push open mechanism may be released by the weight of the table, and the table is not intended. A malfunction that results in a use position may occur. Moreover, when trying to open the lid in a state where the slide body such as a table is accommodated in the accommodation position, the table may be touched and the push open mechanism may be released, which may cause an unintended malfunction. From the above, it is desired to further improve operability in an armrest with a lid including a slide body such as a table.

  SUMMARY OF THE INVENTION The present invention has been made in view of these points, and the problem to be solved by the present invention is that the slide does not cause an unintended malfunction in the armrest with a lid provided with the slide, and the operability is improved. An object of the present invention is to provide a sliding body locking mechanism for an armrest that has been improved.

  The slide body lock mechanism of the armrest which solves the above-mentioned subject is assembled to the armrest which can be rotated between the standing up position which stood up along with the seat back, and the laid down position which turned down toward the seat surface. A lid for opening and closing the opening of the storage recess provided for the storage provided in the armrest by rotating in the same direction as the rotation direction, and a storage position assembled to the lid and stored in the lid The slide held by sliding movement between the use position exposed from the lid and the switch, and the slide held at the storage position are pushed in the slide direction to release the held state at the storage position and to the use position. A push-open mechanism that switches movably, and sensing rotation of the armrest or the lid A first gravity sensing lock mechanism for disabling the push-open mechanism with respect to the slide body at the housing position in a preset first angle region of the rotation angles of the armrest or the lid; The second gravity which detects the rotation of the lid and restricts the slide movement of the slide body in the use position to the storage position in a second angle region set in advance among the rotation angles of the armrest or the lid And a sensing lock mechanism.

  According to this configuration, when the rotation of the armrest or the lid is detected, the push open mechanism does not work on the slide body at the housing position in the first predetermined angle region of the rotation angles of the armrest or the lid. The first gravity sensing lock mechanism and the rotation of the armrest or lid are sensed to slide the slide body in the use position in the use position in the second predetermined angle region of the rotation angles of the armrest or lid. And a second gravity sensing lock mechanism for restricting movement. Therefore, in the armrest with a lid provided with the slide body, the slide body can be configured as the slide body lock mechanism of the armrest whose operability is improved without causing an unintentional malfunction of the slide body.

  According to the present invention, there is provided a slide body locking mechanism of an armrest in which operability is improved without causing an unintentional operation of the slide body in the armrest with a lid having the slide body by taking the means of each of the above-mentioned inventions. it can.

It is the whole perspective view which showed the state of the standing-up position which the armrest which concerns on embodiment stood up along the seat back. It is the whole perspective view showing the state of the fallen position where the same armrest fell toward the seat surface. It is the whole perspective view which showed the state which rotated the lid and opened the storage recessed part in the armrest of a fall position. It is the whole perspective view which showed the state made into the use position which exposed the table from the lid in the armrest of a fall position. It is the perspective view which showed the table assembly assembled | attached to a lid. It is an exploded perspective view of table assembly. It is a disassembled perspective view of the table in table assembly. It is a disassembled perspective view of the lower frame in table assembly. It is the schematic sectional drawing which expanded and showed the movement of the push open mechanism. It is sectional drawing which showed the lid closed state. It is sectional drawing which showed the rotation angle of the lid when the 1st gravity sensing lock mechanism of a table assembly is the minimum lock operating angle. It is sectional drawing which showed the rotation angle of the lid when the 1st gravity sensing lock mechanism of a table assembly is a largest lock operating angle. It is sectional drawing which showed the lid open state. It is sectional drawing which showed the state which the armrest is located in the fall position. It is sectional drawing which showed the rotation angle of the armrest when the 1st gravity sensing lock mechanism of a table assembly is a minimum lock operating angle. It is sectional drawing which showed the rotation angle of the armrest in case the 1st gravity sensing lock mechanism of a table assembly is a maximum lock operating angle. It is sectional drawing which showed the rotation angle of the armrest when the 2nd gravity sensing lock mechanism of a table assembly is a minimum lock operating angle. It is sectional drawing which showed the rotation angle of the armrest when the 2nd gravity sensing lock mechanism of a table assembly is a maximum lock operating angle. FIG. 7 is a cross-sectional view showing the armrest in the upright position. It is the schematic sectional drawing which expanded and showed the motion of the 1st gravity sensing lock mechanism. It is the schematic sectional drawing which expanded and showed the 2nd gravity detection lock mechanism.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS. In the present embodiment, the center arm rest of the rear seat 1 in the vehicle will be described as an example. The directions shown by the arrows in the drawings as appropriate are the directions corresponding to the front, the rear, the upper, the lower, the left, and the right, respectively, as viewed from the seat occupant seated on the rear seat 1.

  The armrest 10 in the present embodiment is provided rotatably on a frame (not shown) of the seat back 2 at the center in the vehicle width direction of the rear seat 1 of the vehicle as shown in FIGS. It is possible to switch between the upright position 10B in the upright position and the collapsed position 10A in the state of lying down toward the seat surface. Although the armrest 10 is configured to be rotatable by being connected to the frame of the seat back 2, the armrest 10 is configured to be rotatable to a frame of a seat cushion, a vehicle component such as a vehicle body, etc. It is also good.

  As shown in FIG. 1, the armrest 10 functions as part of the backrest surface of the seatback 2 when the armrest 10 is in the upright position 10B. On the other hand, as shown in FIG. 2, when the armrest 10 is in the collapsed position 10 </ b> A, the seated person can put his arm on. Further, as shown in FIG. 3, the armrest 10 is provided with a storage recess 14 for storing goods, and a lid 20 is provided which can open and close the opening 16 at the top of the storage recess 14. As a result, an object can be stored in the storage recess 14 with the lid 20 in the lid open state 20B, or the lid 20 can be placed in the lid closed state 20A (see FIG. 2) to place an arm on the upper surface. Furthermore, as shown in FIG. 4, a table 50 (sliding body) is attached to the lid 20. The table 50 is configured to be switchable between an accommodation position 50A (see FIG. 14) accommodated in the lid 20 and a use position 50B exposed from the lid 20 by sliding movement forward thereof. By placing the table 50 in the use position 50B, it may be easy to place an object with the arm placed thereon. In addition, although the table 50 is illustrated as one aspect | mode of a slide body in this embodiment, in addition to this, a cup holder, a tray, etc. can be variously applied as a slide body, if it can assemble | attach to a lid.

  An overall perspective view of the table assembly 30 assembled in the lid 20 is shown in FIG. As shown in FIG. 6, the table assembly 30 includes a box-shaped lower frame 34 opened at the upper and front sides, an upper frame 32 covering the upper opening of the lower frame 34, and upper and lower frames 32 and 34. A table 50 (sliding body) is provided via a slide rail 36 between them. The slide rail 36 is a long member extending in the longitudinal direction of the vehicle, and the lower rail 36L is fixed to the center of the lower frame 34 in the width direction. The upper rail 36U is fitted so as to be slidable in the longitudinal direction of the lower rail 36L. The table 50 (sliding body) is connected to the upper rail 36U. Thus, the table 50 (sliding body) is configured to be slidably movable between the housing position 50A (see FIG. 14) housed in the lid 20 and the use position 50B (see FIG. 14) exposed from the lid 20. Be done. Also, a constant load spring 90 is provided between the table 50 (slide body) and the lower frame 34. The constant load spring 90 is a spring that generates a biasing force in the longitudinal direction of the band member by winding a metal band member around the shaft-like member and pulling out the tip. The constant load spring 90 has an axial member attached to the rear end of the table 50 (slide body), and the front end of the band member is locked to the front end of the lower frame 34. That is, in a state in which all metal band members are wound around the shaft-like member of the constant load spring 90, the use position 50B is obtained where the rear end of the table 50 (slide body) and the front end of the lower frame 34 are close. Thereby, the table 50 (slide body) is biased by the constant load spring 90 in the direction from the accommodation position 50A toward the use position 50B. Further, the table assembly 30 is assembled in the lid 20 and pivotally supported by the hole 38 in the frame (not shown) of the armrest 10. Thereby, the lid 20 can be rotated in the same direction as the armrest 10.

  As shown in FIG. 7, in the table 50 (sliding body), the design plate 54 is fixed to the area of the front half of the upper surface of the plate-like table frame 52. A gear damper 60 is fitted to the rear in the width direction left side of the table frame 52. A cam groove body 70 (push open mechanism) is fixed to the lower surface side on the left side in the width direction of the table frame 52. A cushion body 56 is attached to the rear end of the table frame 52. At the rear in the width direction left side of the table frame 52, a first rotating body 81 (first gravity sensing and locking mechanism) is pivotably supported in the front-rear direction. The first rotary body 81 has a substantially fan-like shape, has a rotation center 81C at an eccentric position, and a weight 81D is provided below the rotation center 81C. Therefore, the first rotating body 81 rotates so that the weight 81D comes vertically below the rotation center 81C. On the front side of the first rotating body 81, a second rotating body 82 (second gravity sensing and locking mechanism) is pivotably supported in the front-rear direction. The second rotary body 82 has a substantially fan-like shape, has a rotation center 82C at an eccentric position, and has an overhanging piece 82D protruding in the width direction below the rotation center 82C. It is provided. Therefore, the second rotating body 82 pivots so that the center of the overhanging piece 82D is vertically below the pivoting center 82C.

  As shown in FIG. 8, the lower frame 34 is formed in a box shape with the upper side and the front side opened. The rack 62 is fixed along the side wall on the left side in the width direction of the lower frame 34. The rack 62 is a linear rod-like member, and a linear gear portion is provided in the longitudinal direction. The rack 62 is attached at a position corresponding to the gear damper 60 (see FIG. 7) and meshes with the gear damper 60. Thereby, the gear damper 60 meshes with the rack 62, whereby the table 50 (see FIG. 6) is biased from the storage position 50A (see FIG. 14) by the biasing of the constant load spring 90 (see FIG. 6). Function to attenuate the speed of sliding movement when sliding to On the right side in the width direction of the rear wall of the lower frame 34, an opening penetrating in the thickness direction is provided. The upper portion of the opening functions as a first stopper 41 (a first gravity sensing lock mechanism) that restricts the movement of the first rotary body 81. The side wall on the right side in the width direction of the lower frame 34 has a plate piece obtained by cutting and raising the plate surface. The plate piece functions as a second stopper 42 (a second gravity sensing lock mechanism) that regulates the movement of the second rotary body 82. A swing shaft 72 (push open mechanism) is provided at a position corresponding to the cam groove body 70 (push open mechanism) on the left side in the width direction of the lower frame 34.

  As shown in FIG. 9, the cam groove body 70 and the swinging shaft 72 (push open mechanism) are held at the housing position 50A by pushing the table 50 of the housing position 50A (see FIG. 14) rearward in the sliding direction. Is released and movably switched to the use position 50B (see FIG. 14). The pivot shaft 72 is configured such that a shaft projecting upward pivots in the left-right direction and engages with the cam groove of the cam groove body 70. The cam groove body 70 has a heart-shaped heart cam 73 substantially at the center and a wall surface 74 surrounding the heart cam 73. The axis of the rocking shaft 72 passes between the heart cam 73 and the wall surface 74. Here, the rocking shaft 72 can move the cam groove formed by the heart cam 73 and the wall surface 74 only in one direction, and holds the table 50 at the housing position 50A while being held by the heart cam 73. ing. On the other hand, when the table 50 is pushed rearward in the sliding direction, the rocking shaft 72 is separated from the heart cam 73, the cam groove 70 and the rocking shaft 72 can be separated. Thereby, the table 50 can slide to the use position 50B.

  Next, the operation content of the table 50 (sliding body) of the armrest 10 of the present embodiment will be described.

<Operational Contents of Table 50 Accompanying Rotation of Lid 20: FIGS. 10 to 13 and 20>

  As shown in FIGS. 10 and 20, in the lid closed state 20A, the outer peripheral surface of the first rotating body 81 is in a state where it can enter the opening below without engaging with the first stopper 41.

  As shown in FIGS. 11 and 20, the lid 20 is unlocked and rotated from the lid closed state 20A to the lid first position 20A1 by the lid first angle α1. At this time, the first rotating body 81 independently rotates so as to maintain the weight 81D at a position vertically below the rotation center 81C. Then, the outer peripheral surface of the first rotating body 81 can be in contact with the first stopper 41. Therefore, even if the table 50 is pushed backward in the sliding direction, the swing shaft 72 (see FIG. 9) is not detached from the heart cam 73 (see FIG. 9) of the cam groove 70 (see FIG. 9). Not working). Therefore, the storage position 50A of the table 50 (sliding body) is maintained. The lid first angle α1 is a minimum lock operation angle of the first rotary body 81 and the first stopper 41 (first gravity sensing lock mechanism).

  As shown in FIGS. 12 and 20, the lid 20 is further rotated to the lid second angle α2 to change from the lid first position 20A1 to the lid second position 20A2. At this time, the first rotating body 81 rotates independently so as to maintain the weight 81 D so as to be positioned vertically below the rotation center 81 C, while the first rotating body 81 contacts the table frame 52 of the table 50 (sliding body). Contact. The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, even if the table 50 is pushed backward in the sliding direction, the swing shaft 72 (see FIG. 9) is not detached from the heart cam 73 (see FIG. 9) of the cam groove 70 (see FIG. 9). Not working) is maintained. The lid second angle α2 is a maximum lock operation angle of the first rotary body 81 and the first stopper 41 (first gravity sensing lock mechanism).

  As shown in FIGS. 13 and 20, the lid 20 is further rotated to the lid third angle α3 to change from the lid second position 20A2 to the lid open state 20B. At this time, the first rotating body 81 rotates together with the lid 20 in a state of being in contact with the table frame 52 of the table 50 (sliding body). The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, even if the table 50 is pushed backward in the sliding direction, the swing shaft 72 (see FIG. 9) is not detached from the heart cam 73 (see FIG. 9) of the cam groove 70 (see FIG. 9). Not working) is maintained. The angle between the lid first position 20A1 and the lid open state 20B is a preset first angle region θ1 of the rotation angles of the lid 20, and in the region of the first angle region θ1, Since the one rotation body 81 and the first stopper 41 (first gravity sensing and locking mechanism) are engaged with each other, the push open mechanism does not work on the table 50 at the housing position 50A.

<Operational Contents of Table 50 Accompanying Rotation of Armrest 10: FIGS. 14-19, 20, 21>
In FIGS. 14-19, the state of the accommodation position 50A of the table 50 (slide body) is shown by a solid line, and the use position 50B is shown by a virtual line.

  As shown in FIGS. 14, 20 and 21, at the collapsed position 10 </ b> A, the outer peripheral surface of the first rotating body 81 is in a state where it can enter the opening below without engaging with the first stopper 41. Further, the overhanging piece 82D of the second rotating body 82 is in a state of not engaging with the second stopper 42. Therefore, the table 50 (sliding body) is operable in any of the storage position 50A and the use position 50B.

  As shown in FIGS. 15, 20 and 21, the armrest 10 is pivoted to the armrest first angle β1 and moved from the collapsed position 10A to the armrest first position 10A1. At this time, the first rotating body 81 independently rotates so as to maintain the weight 81D at a position vertically below the rotation center 81C. Then, the outer peripheral surface of the first rotating body 81 can be in contact with the first stopper 41. Therefore, since the table 50 at the housing position 50A does not slide even when pushed in the slide direction backward, the swing shaft 72 (see FIG. 9) does not separate from the heart cam 73 (see FIG. 9) of the cam groove body 70 (see FIG. 9) (The push open mechanism does not work). The lid armrest first angle β1 is a minimum lock operation angle of the first rotary body 81 and the first stopper 41 (first gravity sensing lock mechanism), and is the same angle as the first angle α1. In the armrest first position 10A1, the second rotary body 82 does not engage with the second stopper 42, so the table 50 (slide body) in the use position 50B can slide to the housing position 50A. The biasing force of the constant load spring 90 is greater than the weight of the table 50 to hold the position of the use position 50B.

  As shown in FIGS. 16, 20 and 21, the armrest 10 is further rotated to the armrest second angle β2 to move from the armrest first position 10A1 to the armrest second position 10A2. At this time, the first rotating body 81 rotates independently so as to maintain the weight 81 D so as to be positioned vertically below the rotation center 81 C, while the first rotating body 81 contacts the table frame 52 of the table 50 (sliding body). Contact. The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, the rocking shaft 72 (see FIG. 9) does not separate from the heart cam 73 (see FIG. 9) of the cam groove body 70 (see FIG. 9) because The push-open mechanism does not work). The armrest second angle β2 is the maximum lock operation angle of the first rotary body 81 and the first stopper 41 (first gravity sensing lock mechanism), and is the same angle as the lid second angle α2. Further, at the armrest second position 10A2, the second rotary body 82 is in a positional relationship in which it does not engage with the second stopper 42, so the table 50 (slide body) in the use position 50B can slide to the housing position 50A. The biasing force of the constant load spring 90 is greater than the weight of the table 50 to hold the position of the use position 50B. As shown in FIG. 19, the angle between the armrest first position 10A1 and the upright position 10B is a first angle region θ1 set in advance among the rotation angles of the armrest 10. In the region of the first angle region θ 1, the first rotary body 81 and the first stopper 41 (first gravity sensing lock mechanism) are engaged with each other, so that the push open mechanism does not work on the table 50 at the housing position 50A. Make it Although the maximum rotation angle of the lid 20 and the maximum rotation angle of the armrest 10 may not necessarily coincide with each other, the first angle region θ1 as a preset angle for bringing the push open mechanism into a non-operation state is substantially Is the same.

  As shown in FIGS. 17, 20 and 21, the armrest 10 is further rotated to the armrest third angle β3 to move from the armrest second position 10A2 to the armrest third position 10A3. At this time, the first rotating body 81 rotates together with the armrest 10 in a state of being in contact with the table frame 52 of the table 50 (sliding body). The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, the rocking shaft 72 (see FIG. 9) does not separate from the heart cam 73 (see FIG. 9) of the cam groove body 70 (see FIG. 9) because The push-open mechanism does not work). Further, at the armrest third position 10A3, the second rotary body 82 is in a positional relationship in which it engages with the second stopper 42. Therefore, the slide movement of the table 50 (slide body) from the use position 50B to the storage position 50A is restricted. The armrest third angle β3 is a minimum lock operation angle of the second rotary body 82 and the second stopper 42 (second gravity sensing lock mechanism).

  As shown in FIGS. 18, 20 and 21, the armrest 10 is further rotated to the armrest fourth angle β4 to move from the armrest third position 10A3 to the armrest fourth position 10A4. At this time, the first rotating body 81 rotates together with the armrest 10 in a state of being in contact with the table frame 52 of the table 50 (sliding body). The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, the rocking shaft 72 (see FIG. 9) does not separate from the heart cam 73 (see FIG. 9) of the cam groove body 70 (see FIG. 9) because The push-open mechanism does not work). Further, at the armrest fourth position 10A4, the second rotating body 82 is in a positional relationship in which it engages with the second stopper 42. Therefore, the slide movement of the table 50 (slide body) from the use position 50B to the storage position 50A is restricted. The armrest fourth angle β4 is a maximum lock operation angle of the second rotary body 82 and the second stopper 42 (second gravity sensing lock mechanism).

  As shown in FIGS. 19, 20 and 21, the armrest 10 is further rotated to the armrest fifth angle β5 and moved from the armrest fourth position 10A4 to the upright position 10B. At this time, the first rotating body 81 rotates together with the armrest 10 in a state of being in contact with the table frame 52 of the table 50 (sliding body). The outer peripheral surface of the first rotating body 81 is in a state in which it can be in contact with the first stopper 41 as in FIG. Therefore, the rocking shaft 72 (see FIG. 9) does not separate from the heart cam 73 (see FIG. 9) of the cam groove body 70 (see FIG. 9) because The push-open mechanism does not work). Further, in the standing position 10B, the second rotating body 82 is in a positional relationship in which it engages with the second stopper 42. Therefore, the slide movement of the table 50 (slide body) from the use position 50B to the storage position 50A is restricted. The angle between the armrest third position 10A3 and the upright position 10B is a second angle area θ2 set in advance among the rotation angles of the armrest 10, and in the area of the second angle area θ2, the second angle area θ2 It becomes a positional relationship engaged with the rotary body 82 and the 2nd stopper 42 (2nd gravity sensing lock mechanism). Therefore, the slide movement of the table 50 (slide body) from the use position 50B to the storage position 50A is restricted.

  As described above, according to the slide body lock mechanism of the armrest of the present embodiment, the rotation of the armrest 10 or the lid 20 is sensed, and the preset first angle region of the rotation angles of the armrest 10 or the lid 20 is detected. The first rotary body 81 and the first stopper 41 (first gravity sensing) for preventing the cam groove body 70 and the swing shaft 72 (push open mechanism) from acting on the table 50 (slide body) at the housing position 50A at θ1. Lock mechanism). In addition, the rotation of the armrest 10 or the lid 20 is detected, and the table 50 (sliding body) at the use position 50B is accommodated at the second angle region θ2 set in advance among the rotation angles of the armrest 10 or the lid 20 It has the 2nd rotary body 82 and the 2nd stopper 42 (the 2nd gravity sensing lock mechanism) which regulate the slide movement to the 2nd. Therefore, the table 50 (slide body) slides toward the housing position 50A by the weight of the table 50 even when the armrest 10 is pivoted from the fall position 10A to the upright position 10B in the use position 50B. I have not. Therefore, even when the armrest 10 is returned to the fall position 10A again, it is possible to prevent an erroneous operation in which the table 50 becomes the storage position 50A unintentionally.

  Further, with the table 50 (sliding body) housed in the housing position 50A, the armrest 10 is brought to the standing position 10B, or even when the lid 20 is in the lid open state 20B, the cam groove 70 and the rocking by the weight of the table 50 It can prevent the mechanism of the shaft 72 (push open mechanism) from being released. Therefore, it is possible to prevent an erroneous operation in which the table 50 becomes the use position 50B unintentionally.

  Further, when the lid 50 is opened in a state where the table 50 (slide body) is accommodated in the accommodation position 50A, the table 50 is touched and the mechanisms of the cam groove body 70 and the swing shaft 72 (push open mechanism) are released. It can prevent being done. Therefore, it is possible to prevent an erroneous operation in which the table 50 becomes the use position 50B unintentionally.

  As mentioned above, in the armrest 10 provided with the lid 20 provided with the table 50 (sliding body), the table 50 does not cause an erroneous operation which is not intended, and the operability can be improved.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to this embodiment, It can implement in another various form. For example, in the present embodiment, the center armrest of the rear seat 1 in the vehicle is described as an example, but the present invention is not limited to this, and the armrest between the seats in the first row and the second row may be used. Moreover, it is not limited to a center armrest, For example, the armrest provided here in the width direction outward of a seat may be used. Moreover, although the table 50 (sliding body) showed the aspect urged | biased by the constant load spring 90, it is applicable also to what is manually slid.

1 rear seat 2 seat back 10 armrest 10A reclining position 10A1 armrest first position 10A2 armrest second position 10A3 armrest third position 10A4 armrest fourth position 10B upright position β1 armrest first angle β2 armrest second angle β3 armrest third angle β4 armrest 4th angle β5 armrest fifth angle 14 storage recess 16 opening 20 lid 20A lid closed state 20A1 lid first position 20A2 lid second position 20B lid open state α1 lid first angle α2 lid second angle α3 lid third angle 30 table Assembly 32 Upper frame 34 Lower frame 36 Slide rail 36 L Lower rail 36 U Upper rail 38 Hole 41 First stopper (first gravity sensing lock mechanism)
42 2nd stopper (2nd gravity sensing lock mechanism)
50 table (sliding body)
50A accommodation position 50B use position 52 table frame 54 design plate 56 cushion body 60 gear damper 62 rack 70 cam groove body (push open mechanism)
72 Swing shaft (Push open mechanism)
73 heart cam 74 wall surface 81 first rotating body (first gravity sensing lock mechanism)
81C Rotation center 81D Weight 82 Second rotating body (second gravity sensing lock mechanism)
82C rotation center 82D overhanging piece 90 constant load spring θ1 first angle area θ2 second angle area

Claims (1)

While being assembled to a pivotable armrest between an upright position standing up along the seatback and a collapsed position which falls toward the seat surface, the pivoting direction of the armrest is also the same as the pivoting direction. A lid capable of opening and closing an opening of a storage recess for a storage provided in the armrest;
A sliding body which is switched by sliding movement between a storage position assembled to the lid and housed in the lid and a use position exposed from the lid;
A push-open mechanism that is released from the state held in the storage position by pressing the slide body in the storage position in the slide direction, and switches the position to the use position;
The push open mechanism does not work on the slide body in the accommodated position in a first predetermined angle region of the rotation angles of the armrest or the lid upon sensing the rotation of the armrest or the lid A first gravity sensing lock mechanism to be put into a state;
The rotation of the armrest or the lid is sensed, and the sliding movement of the slide body at the use position to the storage position is restricted in a second predetermined angle region of the rotation angles of the armrest or the lid. And a second gravity sensing lock mechanism.

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