Vehicular table device

Abstract

To provide a vehicular table device which easily attaches and detaches a table main body or a table main body and opening and closing mechanism part, and, as necessary, is separated from position setting engagement parts, thereby, widens the cabin interior, improves usability and can be used as a table outside a cabin.SOLUTION: A vehicular table device constituted with a table main body part 1, and an opening and closing mechanism part 2 switching the table main body part 1 to a used state getting approximately horizontal and a folded storage state with respect to a fitting mating member 4 within a cabin has a lock part 3 (or 53, 54) in which the opening and closing mechanism part 2 is engaged with an engaged part 15 (or 45) provided on the table main body part 1 or / and the fitting mating member 4 to be in a connection manner, and the engagement is released to be in a separation manner.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present invention relates to a table device to be installed in an automobile or the like, and more particularly to a vehicle table device in which the table main body can be easily detached from its mounting surface or opening / closing mechanism so that it can be used as a table outside the vehicle compartment. [Background technology]

[0002] Vehicle table devices are installed on the back of the seat back of the seat (JP 2001-246976 A), the side of the seat cushion (JP 2020-66343 A), the side of the console box (JP 2000-185584 A), etc. A typical structure is composed of a table main body and an opening and closing mechanism that switches the table main body between a use state and a folded storage state with respect to the mounting partner, and the table main body is inseparable from the opening and closing mechanism and the mounting partner. Therefore, while the table device contributes to improving the convenience of the occupants, it can also narrow the vehicle interior space or get in the way.

[0003] As an example of such a countermeasure, Fig. 14 shows a table device disclosed in Patent Document 1. This table device has a mounting base 4 to which L-shaped hangers 2 and 3 are attached, a fastener 8 as a retaining tool, a U-shaped metal fitting 6 as a fastening metal fitting for the lower part of the backrest, a shelf support 11 on which a table 13 is placed, a hinge 7 for switching the table 13 between a use state and a storage state, and a flexible stay 10 provided between the mounting base 4 and the shelf support 11. The mounting base 4 is pulled up so that the U-shaped metal fitting 6 envelops the lower part of the backrest, and the hook 9 of the fastener 8 is connected to the hole of the U-shaped metal fitting 6, and the fastener is fastened to attach it to the back of the seat back. The shelf support 11 and the table 13 are supported on the left and right sides of the mounting base 4 by the hinge 7 and the flexible stay 10, and the mounting angle of the table 13 can be changed via the flexible stay 10. For example, when the movable stay 10 is at its shortest length, the table 13 is stored along the rear surface of the seat back as shown by the imaginary line in (b), and the magnet 14 is attracted to the mounting base 4 to maintain this state. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Registration No. 3053928 Summary of the Invention [Problem to be solved by the invention]

[0005] The structure of the above-mentioned Patent Document 1 states that when the table is not used for a long period of time, it can be easily removed by pulling out the shaft of the headrest, and does not cause any damage to the vehicle. However, this table device cannot be attached to or detached from the seat with a single touch, and in addition, in addition to the mounting base, shelf support, and table, an L-shaped hanger, a fastener with a hook, and a U-shaped metal fitting are also required to be attached to the mounting base, so it is not assumed that the table device will be used outside the vehicle even if it is removed from the seat. In other words, conventional vehicle table devices are designed to be used exclusively inside the vehicle and not to be carried outside the vehicle. However, in SUVs (Sport Utility Vehicles) and campers, the table main body is made as a large molded product made of resin, but it is only used inside the vehicle, and has low versatility.

[0006] In view of the above, an object of the present invention is to make it possible to easily attach and detach the table body or the table body and the opening and closing mechanism from the attached object as necessary, thereby making the interior of the vehicle spacious and easy to use, and also to use it as a table outside the vehicle. Other objects will be made clear in the following description. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the present invention provides a vehicle table device, as illustrated in Figures 1 to 10, which is composed of a table main body and an opening / closing mechanism that switches the table main body between a usage state in which it is approximately horizontal relative to a mounting partner inside the vehicle cabin and a folded-up storage state, and is characterized in that the opening / closing mechanism has a locking portion that engages with an engaging portion provided on the table main body and / or the mounting partner to enter a connected state and disengages from the engaging portion to enter a separated state.

[0008] The relationship between the present invention and each embodiment described below is as follows. First, the configuration in which the locking portion (3) is provided on the opening / closing mechanism portion (2) and the engaged portion (15) is provided on the table main body portion (1) is a specification based on the first embodiment in Figs. 1 to 8. Second, the configuration in which the locking portion (53) is provided on the opening / closing mechanism portion (2) and the engaged portion (45) is provided on the mounting portion (4A) is a specification based on the second embodiment in Figs. 11 to 13. Third, the configuration in which the engaged portions (15 and 45) are provided on the table main body portion (1) and the mounting portion (4A) and the locking portions (3 and 53) are respectively provided on the opening / closing mechanism portion (2) is a specification of the configuration in which the second embodiment has the engaged portion of the table main body portion and the locking portion of the opening / closing mechanism portion of the first embodiment.

[0009] The present invention described above is more preferably embodied as follows. (a) The opening and closing mechanism has a bracket that is fixed to the mounting part, and a support plate on which the table main body can be placed is rotatably attached to the bracket (Claim 2 based on the first aspect). (i) The locking portion is an engaging plate slidably attached to the support plate, and is configured to be switched from a protruding state in which it engages with the engaged portion to a retracted state in which it disengages by operating against the biasing force of the lever (Claim 3).

[0010] (c) The opening and closing mechanism has a bracket that is arranged to be slightly movable relative to the mounting part, and a support plate on which the table main body can be placed is rotatably attached to the bracket (Claim 4 based on the second form). (e) The locking portion is an engagement hole provided in the bracket, and is configured to engage and disengage with the engaged portion by inserting the engaged portion protruding toward the mounting partner into the engagement hole and moving the bracket (Claim 5).

[0011] (O) The opening and closing mechanism has a cam portion and a shaft rotatably supported on the cam portion, and the table main body is configured to be switched between a stored state and a usage state via the shaft which slides along a guide groove provided on the support plate (Claim 6). (f) The table main body has leg members that can be switched between a tilted state in which it is tilted toward the rear side and an upright state in which it is protruded toward the rear side, and an operating knob that maintains the leg members in the upright state or releases the upright state against a biasing force, thereby enabling the leg members to be switched to the upright state (Claim 7). (g) The leg members are switchable between a shortened state arranged along the outer periphery and an extended state in which the protruding dimension is extended, and are configured to have auxiliary legs, part of which is sandwiched between the table main body and the leg members when the table is in the shortened state and in the overturned state (Claim 8). Effect of the Invention

[0012] In the invention of claim 1, the opening and closing mechanism engages the locking part with the engaged part of the table body or the mounting partner to connect the table body or the mounting partner, or disengages the locking part to separate the table body or the mounting partner. In this invention, the table body can be separated from the opening and closing mechanism and the mounting partner to make the interior space larger, and the separated table body can be carried outside the vehicle and used as a table for camping, making it highly versatile.

[0013] In the invention of claim 2, the opening and closing mechanism has a bracket that is fixed to a mounting object, and the support plate on which the table main body can be placed is rotatably attached to the bracket, so that the table main body can be attached and detached to the support plate as in the first embodiment. The removed table main body is separated from the opening and closing mechanism, so it is easy to use as a table.

[0014] In the invention of claim 3, the engagement plate, which is the locking part, can be switched from a protruding state in which it engages with the engaged part to a retracted direction in which it disengages by operating against the biasing force of the lever, so that it can be easily engaged, for example, by simply pressing the engagement plate on the support plate side against the engaged part of the table body against the biasing force. Also, in the engaged state between the engagement plate and the engaged part, the engagement plate is always biased in the protruding direction by the biasing force, so rattling can be suppressed even if vibrations are applied during travel.

[0015] In the invention of claim 4, the opening and closing mechanism has a bracket that is arranged to be slightly movable relative to the mounting partner, and when the locking portion is disengaged from the engaged portion of the mounting partner as in the second form and the table main body is removed from the mounting partner together with the opening and closing mechanism, no opening and closing mechanism remains on the mounting partner, resulting in a good appearance and making the vehicle interior space larger.

[0016] In the invention of claim 5, the engagement can be easily performed by inserting the engaged part protruding from the mounting part into the engagement hole of the bracket, which is the locking part, and moving the bracket. This operation is easy to handle because the bracket is integrated with the opening / closing mechanism, or is integrated with the opening / closing mechanism and the table body.

[0017] In the invention of claim 6, as in each embodiment, the cam portion is fixed to the mounting part or bracket, the base end of the shaft is rotatably supported by the cam portion, and the tip end moves along the guide groove provided in the support plate portion, so that it is easy to maintain good switching characteristics.

[0018] In the invention of claim 7, the table body has leg members that can be switched between a tilted state and an upright state, and an operation knob that holds the leg members in the tilted state or releases the tilted state against the biasing force to switch them to the upright state, so that the table body can be carried outside the vehicle in a separated state detached from the opening / closing mechanism and used satisfactorily as a table with leg members. Also, since the leg members are biased by the operation knob in the tilted state so as not to inadvertently stand up, rattling can be suppressed even when vibrations are applied while traveling.

[0019] In the invention of claim 8, the leg members have auxiliary legs that can be switched between a shortened state in which they are arranged along the periphery and an extended state in which the protruding dimension is extended, so that the table height can be increased by setting the auxiliary legs in the extended state, improving usability. Also, when the leg members are in the overturned state, at least a part of the auxiliary legs is sandwiched between the leg members and the table main body in the shortened state, so that the risk of rattling even when vibration is applied can be eliminated.

[0020] The invention of claim 9 is a table device that can be attached to a console box or an interior wall of the vehicle other than a seat, but its purpose is to be detached from the attachment and used outside the vehicle, and it is significant that it is limited to a seat in order to make it easier to make the table as large as possible. [Brief description of the drawings]

[0021] [Figure 1] 1A and 1B are a front view and a side view of a table main body of a table device in a first embodiment in a used state, as viewed from behind the back of a seat back of a seat. [Diagram 2] 13A and 13B are a front view and a side view of the table main body in the stored state as viewed from behind the back of the seat back. [Diagram 3] 2 is a perspective view showing the table device in the use state of FIG. 1 as viewed from below. [Figure 4] FIG. 2 is a perspective view showing the table device separated into a table main body and an opening / closing mechanism. [Diagram 5] 13A and 13B are perspective views showing only the opening and closing mechanism unit in the used state and the stored state of the table main body. [Figure 6] 13A and 13B are operational diagrams showing the locking portion in a protruding state and a retracted state when the cover of the opening / closing mechanism is removed. [Figure 7] FIG. 2 is a schematic perspective view showing a main part of the opening / closing mechanism in an exploded state; [Figure 8] 1A is a rear view of the table body with the leg members in a tilted position, FIG. 1B is an enlarged view of part A in FIG. 1A, and FIG. 1C is a plan view showing the operating knob alone. [Figure 9] 1A is a perspective view of the table when viewed from below with the leg members in an upright position, and FIG. [Figure 10] 10(a) is a perspective view showing the auxiliary legs further extended from FIG. 9 as viewed from below, and FIG. 10(b) is a rear view of the table main body showing the leg members and auxiliary legs in an upright state. [Figure 11] FIG. 13A is a perspective view showing a state in which the table device has been detached from the seat showing the second mode, and FIG. 13B is a schematic view showing the seat with a part of the seat cover cut away. [Figure 12] 11 just before the engaged portion of the seat is inserted into the locking portion of the table device, and (b) is a schematic diagram showing the state in which the table device has been moved downward from the position of (a) while being pushed toward the urethane side of the seat. [Figure 13] 12(a) is a schematic diagram showing a state in which the pressing force is released from the state shown in FIG. 12(b) and the engaged portion engages with the engaging hole due to a reaction force from the urethane side of the seat, and (b) is a schematic diagram showing a state in which the table main body has been switched from the state shown in (a) to the stored state. [Figure 14] 1 and 5 disclosed in Patent Document 1. BEST MODE FOR CARRYING OUT THEINVENTION

[0022] The vehicle table device of the present invention will be described below with reference to a first embodiment and a second embodiment. In this description, the structure and main operation of the table device of the first embodiment and the structure and main operation of the table device of the second embodiment will be clarified.

[0023] (Structure of the first embodiment) As shown in Figures 1 to 10, this vehicle table device is composed of a table main body 1 and an opening / closing mechanism 2 that switches the table main body 1 between a usage state in which it is substantially horizontal with respect to a seat back 4 of a seat to which it is attached, and a folded and stored state. Note that the table main body 1 is provided on the back surface of the seat back 4, but may be provided on the side surface of the seat cushion of the seat as disclosed in JP2020-66343A.

[0024] The main ingenuity is as follows: The table main body 1 has a pair of locking projections 15 that are engaged portions provided at a distance from each other in the middle of the left and right sides of the back surface 11, left and right leg members 8 that can be switched between a tilted state in which the leg members are tilted toward the back surface 11 and an upright state in which the leg members are protruding toward the back surface 11, and auxiliary legs 9 that are arranged along the outer periphery of each leg member 8 and can be switched between a shortened state and an extended state in which the protruding dimension is extended, and an operation knob 19 that holds the leg members 8 in the tilted state or releases the tilted state against a biasing force to switch the leg members 8 to an upright state.

[0025] On the other hand, the opening / closing mechanism 2 is configured to have a bracket 5 fixed to the seat back 4 of the seat, and a support plate 20 rotatably assembled to the bracket 5 and on which the table main body 1 is detachably placed; an engagement plate 3 which is a locking part which engages with the engagement protrusion 15 to connect with the table main body 1 and disengages from the table main body 1 to separate from the table main body 1; a lever 35 which switches the engagement plate 3 from a protruding state in which it engages with the engagement protrusion 15 by the biasing force of the spring S1 to a retracted state in which it disengages against the biasing force; a pair of cams 6 fixed to the bracket 5 and a shaft 7 rotatably supported while being kept in a pressed state by both cams 6, and the table main body 1 is configured to be switched between a stored state and a usage state via the shaft 7 which slides along a guide groove 27 provided in the support plate 20.

[0026] Next, the detailed configuration of the table main body 1 will be clarified with reference to Fig. 4 and Fig. 8 to Fig. 10. As shown in Fig. 2, the table main body 1 is made of a rectangular resin molded body, and the back surface 11 is in the shape of a shallow container partitioned by a surrounding wall 12. On the inside of the surrounding wall 12, there are a pair of locking projections 15, 15 which are engaged parts protruding from the center and maintaining a predetermined distance, restriction walls 16 for restricting the position of the leg members protruding from a total of four places on the left, right, front and rear, protruding walls 14, 17 for bearings provided on the inside of each restriction wall 16 with a width equivalent to both side plates of the U-shape of the leg member 8, a contact part 13 for receiving each side part 8b of the leg member 8 in an upright state, positioning pieces 16a, 16a and 16b, 16b for restricting the support plate 20 from the left and right, and protruding pieces 16c protruding near each positioning piece 16b.

[0027] Here, the locking projections 15 face each other with a slight offset, and have recesses 15a formed on the facing surfaces. Each restricting wall 16 restricts the front-rear position of the leg member 8 by arranging each side portion 8b of the leg member inside. Each leg member 8 is U-shaped, with the corresponding side portion 8b being arranged between the restricting wall 16 and the protruding wall 14, and between the restricting wall 16 and the protruding wall 17, and is pivotally supported by a shaft member 18 so as to be rotatable. Also, the leg member 8 has an operation knob 19 for holding the leg member 8 in an inverted state or for releasing the held inverted state against the biasing force of the spring 3, thereby enabling it to be switched to an upright state.

[0028] As shown in Fig. 8(b) and (c), the operation knob 19 integrally includes a gripping portion 19a, an intermediate portion 19b, a stopper pressure contact portion 19c protruding from one side of the intermediate portion 19b, and a spring locking portion 19d at the rear of the intermediate portion 19b. The gripping portion 19a of the operation knob 19 is disposed in a notch 12a provided in the peripheral wall 12 so as to be operable by a finger, and the intermediate portion 19b extends in a direction away from the notch 12a through a space below the shaft member 18. The operation knob 19 is biased in a direction away from the peripheral wall 12 by a coil-shaped spring S3, both ends of which are hooked between the locking portion 19d and the locking portion 17a provided behind the protruding portion 17. In this biased state, the pressure contact portion 19c enters the lower end of one of the two side portions 8b of the leg member 8, that is, the gap between the back surface 11 and the corresponding side portion 8b.

[0029] Therefore, in the fallen state shown in Fig. 8, the presence of the pressure contact portion 19c prevents the leg member 8 from unintentionally rattling even if vibration is applied. When switching the leg member 8 to the standing state shown in Fig. 9, the gripping portion 19a is pulled with a finger against the biasing force of the spring S3 to move the pressure contact portion 19c away from the corresponding side portion 8b of the leg member, and then the leg member 8 is rotated to switch to the standing state. When the leg member 8 is switched to the standing state, each side portion 8b abuts against the abutment portion 13 and is held at an angle greater than 90 degrees. This makes the table main body 1 stable as a legged table and easy to use.

[0030] In this structure, the table main body 1 may be used in a state in which it is supported by the leg member 8 as shown in FIG. 9, but when it is desired to further increase the height, the auxiliary leg 9 is inverted from the leg member 8 with the shaft member 18a as a fulcrum as shown in FIG. 10. That is, the auxiliary leg 9 is substantially U-shaped, and both ends of the intermediate portion 9a are pivotally supported by the shaft member 18a to both ends of the intermediate portion 8a of the leg member 8 so as to be rotatable by approximately 180 degrees. The auxiliary leg 9 is formed in a flat plate shape in which the intermediate portion 9a is overlapped on the intermediate portion 8a of the leg member, and is formed in an L-shaped cross section in which both side portions 9b are overlapped on the corresponding side portions 8b of the leg member. The auxiliary leg 9 is in an extended state in which the protruding dimension of the leg member 8 is extended in the upright state, and the intermediate portion 9a is located on the end face of the intermediate portion 8a of the leg member, and each side portion 9b is located on an extension line of the side portion 8a. The auxiliary leg 9 is also overlapped on the leg member 8 in the inverted state. That is, the middle portion 9a is placed on the inner surface of the middle portion 8a, and each side portion 9b is placed on the inner surface of the corresponding side portion 8b. In this case, since each side portion 9b has an L-shaped cross section, one side of the L shape is sandwiched between the back surface 11 of the table body and the corresponding side portion 8b of the leg member 8 when the leg member 8 is in an upturned state. Therefore, the auxiliary leg 9 is also less likely to rattle even when vibration is applied.

[0031] Next, the detailed configuration of the opening / closing mechanism 2 will be made clear with reference to FIGS. The opening / closing mechanism 2 includes a bracket 5 fixed to the seat back rear surface 4b, a support plate 20 rotatably supported by the bracket 5 and on which the table main body 1 is detachably placed, a pair of engagement plates 3 that are slidably provided in the left-right direction on the support plate 20 and engage with and disengage from the engagement protrusions 15, 15, a spring S1 that urges each of the engagement plates 3 in a protruding direction, an upper lever 35 that switches each of the engagement plates 3 from a protruding state, which is the engagement direction, to a retracted direction in which the engagement is released by operating against the urging force of the spring S1, a pair of cams 6 fixed to the bracket 5, a shaft 7 that is rotatably supported by each of the cams 6 and slides along a guide groove 27 provided in the support plate 20, a lower lever 36 that is rotatably supported by an axle portion 38 on the support plate 20 and restricts or allows the shaft 7 to slide within the guide groove 27, and a spring S2 that urges the lever 36 in a counterclockwise direction. 3 also shows the lever 36, the shaft portion 38, and the spring S2 in a state before being attached to the support plate 20. As shown in FIG.

[0032] The bracket 5 is a metal plate member and is composed of a horizontal plate portion 50 extending to the left and right, and a pair of vertical plate portions 51, 51 that are integrated with the horizontal plate portion 50 and extend downward with a gap therebetween. Holders 28 are fixed to the left and right sides of the horizontal plate portion 50, respectively, and the table main body 1 or the support plate 20 is rotated relative to each holder 28 about an axis member 55 as a fulcrum to switch between the use state shown in Fig. 1 and the storage state shown in Fig. 2. Although each holder 28 is fixed to the bracket 5 with a bolt, it is also possible to fix it by a joint structure or to form it integrally with the bracket 5.

[0033] As shown in FIG. 7, the support plate 20 is substantially T-shaped and includes a horizontal plate portion 21 extending left and right and a vertical plate portion 22 extending in a direction intersecting from the left and right intermediate portion of the horizontal plate portion, and the upper surface is covered by a cover 29. The horizontal plate portion 21 extending left and right of the support plate has holes 21a penetrating vertically on both sides, and a holder 28 is disposed in each hole 21a. Each holder 28 has a coaxial shaft hole 28a provided in the opposing side walls, and is assembled so as to be relatively rotatable by a shaft member 55 inserted in a skewered state into each shaft hole 28a from a hole in the end surface of the horizontal plate portion 21 when disposed in the hole 21a. Then, the U-shaped intermediate portion of each holder 28 is fixed to the bracket 5 by a bolt or the like. In this state, the support plate 20 becomes rotatable about the shaft member 55 as a fulcrum, and is switched from the usage state of FIG. 5(a) to the storage state of FIG. 5(b).

[0034] The upper surface of the vertical plate portion 22 has two arrangement portions 23 on both sides provided slightly before the tip, groove portions 24 for arranging the coil-shaped springs S1 provided on the left and right of the arrangement portions 23, and a shaft portion 25 protruding from the center of the arrangement portion 23. An engagement plate 3 is arranged in each arrangement portion 23 together with the spring S1. The engagement plate 3 has a substantially inverted L-shaped engagement portion 30 that engages with and disengages from the recess 15a of the locking protrusion, an extension portion 31 provided on the rear side of the engagement portion 30, a shaft portion 32 provided on the upper surface of the extension portion 31, and a shaft portion 33 protruding rearward from the rear end surface of the extension portion 31. Each engagement plate 3 is assembled to the left and right arrangement portions 23 so that the springs S1 are accommodated in the corresponding groove portions 24 with the springs S1 arranged around the shaft portions 33. Then, the left and right engagement plates 3 are protruded to the maximum by the urging force of the springs S1 as shown in FIG. 6(a). From this state, the lever 35 is assembled into the support plate 20.

[0035] The lever 35 is formed by bending the front side of the linear plate downward, and has a gripping portion 35a at the bent portion and three shaft holes 35c, 35b, 35c arranged at equal intervals on the linear plate portion. When the lever 35 is assembled to the support plate 20 with the shaft hole 35b fitted to the shaft portion 25 and the shaft holes 35c, 35 fitted to the shaft portions 32 of the left and right engagement plates, the gripping portion 35a at the tip is arranged along the tip surface of the vertical plate portion 22. Finally, the cover 29 is attached to the support plate 20 by engaging a plurality of screws B from the holes 29a on the cover side to the holes 20a on the support plate side. The lever 35 is usually inclined counterclockwise with the shaft portion 25 as a fulcrum because the left and right engagement plates 3 are protruded by the biasing force of the spring S1 and in the engagement position as shown in FIG. 6(a). In FIG. 6(b), when the gripping portion 35a is moved in the direction of the arrow against the biasing force from that state, the engaging plates 3 move toward each other in a retracting direction and are switched to the disengaged position.

[0036] The lower surface of the vertical plate portion 22 has two groove-forming projections 26 extending in a straight line from the front end to the rear as shown in FIG. 4, and a guide groove 27 provided on each projection 26. The projections 26 are provided at a predetermined interval. A pair of bearings 28 protrude from the outer surface at the tip side of each projection 26. The lower lever 36 has an operating portion 36a as shown in FIG. 3, a thick plate portion 36b protruding rearward from the operating portion 36a and forming an axial hole 36d penetrating left and right, and a locking plate portion 36c protruding rearward from the end face of the thick plate portion 36b. Although not shown in the figure, the thick portion 36b has a concave cutout in the middle.

[0037] The lever 36 is pivotally supported in such a manner that the thick plate portion 36b is disposed between the bearing portions 28, the shaft member 29 is inserted into the shaft hole (not shown) of one bearing portion 28 and the shaft hole 36d of the thick plate portion 36b, and then into the shaft hole (not shown) of the other bearing portion 28, and a retaining ring E is attached to the protruding shaft portion to prevent it from coming off. In addition, a coil-shaped spring S2 is disposed on the shaft portion of the shaft member 29 that passes through the recess. One end of the spring S2 is engaged with the thick plate portion 36b, and the other end is engaged with the upper surface corresponding portion of the lever 36 while exerting an urging force. The lever 36 is urged counterclockwise by the urging force of the spring S2 as shown in FIG. 4, and the locking plate portion 36c enters into the gap between the protrusions 26. In this state, the shaft 7 described later restrains the intermediate portion 7a at the rear end side of the guide groove 27 by the locking plate portion 36 as shown in FIG. 3 and FIG. 4.

[0038] Each cam 6 is made of a resin molded body and is disposed opposite the vertical plate portions 51, 51 of the bracket. It integrally comprises a fixing base portion 6a, a vertical wall portion 6b erected on the base portion 6a, a shaft hole 6c provided on the inner wall portion of the vertical wall portion 6b, and a cam portion for pressure contact provided around the shaft hole 6c. Although the cam portion is not shown, it is the portion where the corresponding portion of the shaft 7 is pressure-contacted. The base portion 6a is flat and is fixed to the bracket 5 with a plurality of screws or the like. The vertical wall portion 6b is thick and is provided with a predetermined rigidity by a reinforcing rib on the back side. The shaft hole 6c is thickly provided from the inner surface of the vertical wall portion 6b, and the end 7c of the shaft 7 is inserted. The cam portion is located on the lower inner surface of the vertical wall portion 6b and is formed on an inclined surface.

[0039] The shaft 7 is made of a round metal wire material, and is bent generally into a U-shape to form a middle piece 7a and two pieces 7b. The overall dimension of the shaft 7 is the length at which the U-shaped middle piece 7a is moved to the rear end of the guide groove 27 when the table body 1 is placed in the use state as shown in FIG. 1. The U-shaped two pieces 7b are arranged so that the distance between them gradually increases toward the ends 7c. The ends 7c are pivot parts bent outward. The two pieces 7b are shaped as described above when the elastic force narrows the distance between them. For the configuration and operation of the cam 6 and the shaft 7, please refer to the cam part 45 and the shaft 3 described in Japanese Patent No. 4451549.

[0040] (Main Functions) The above-described vehicle table device has the following advantages over the conventional structure. (1) In this table device, with the bracket 5 constituting the opening / closing mechanism 2 fixed to the rear surface 4b of the seat back or the side surface of the seat cushion, the table main body 1 is connected and supported to the opening / closing mechanism 2 by engaging the engagement plate 3 with the locking projection 15, which is the engaged part, and by disengaging the engagement, the table main body 1 can be separated from the opening / closing mechanism 2. Therefore, with this structure, by separating the table main body 1 from the opening / closing mechanism 2, the space inside the vehicle can be utilized widely and comfortably, and the separated table main body 1 can be carried outside the vehicle and used as a table for camping, etc., making it highly versatile.

[0041] (2) In the operation of connecting the table body 1 to the opening / closing mechanism 2, as can be inferred from FIG. 4, the table body 1 is held and pressed down so that each locking protrusion 15 abuts against the corresponding engagement plate 3 of the opening / closing mechanism 2. Then, each engagement plate 3 changes from the protruding state to the retracted state against the biasing force of the spring S1, and at the same time, moves in the protruding direction by the biasing force of the spring S1 and engages with the corresponding recess 15a. On the other hand, in the operation of separating the table body 1, when the gripping portion 35a is pushed with a finger in the direction of the arrow in FIG. 6(b) to rotate the lever 35, each engagement plate 3 is switched from the protruding state to the retracted state and disengaged from the corresponding recess 15a. All that remains is to lift the table body 1. Therefore, in this structure, both the operation of engaging and connecting the table body 1 to the opening / closing mechanism 2 and the operation of disengaging and separating can be performed with a single touch. Therefore, this table device is excellent in operability and usability.

[0042] (3) The opening / closing mechanism 2 has a bracket 5 fixed to the seat side, and the support plate 20 on which the table body 1 can be placed is rotatably attached to the bracket 5, so that it is easy to adopt an engagement structure for attaching and detaching the table body 1 to and from the support plate 20. In addition, the table body 1 detached from the support plate 2 can be configured with legs as in the embodiment, improving usability outside the vehicle cabin, and further, the support plate 2 of the opening / closing mechanism 2 can be easily switched between the use state and the folded state as shown in FIG. (4) The engaging plate 3, which is the locking part, can be switched from a protruding state in which it engages with the locking projection 15, which is the engaged part, to a retracted state in which it disengages by pushing the lever 35 against the biasing force of the spring S1. For this reason, in this opening / closing mechanism 2, for example, it can be easily engaged by simply pressing the engaging plate 3 on the support plate side against the locking projection 15 of the table main body 1 against the biasing force. And, in the engaged state between the engaging plate 3 and the locking projection 15, the engaging plate 3 is always biased in the protruding direction by the biasing force, so that the risk of rattling even when vibrations are applied during travel and the risk of inadvertent disengagement can be reliably eliminated.

[0043] (5) In this structure, when it is desired to use the table main body 1, the table main body 1 is rotated via the shaft member 55 so as to be lifted from the storage state shown in FIG. 2. Then, the table main body 1 is rotated upward while the intermediate piece 7a at the tip of the shaft 7 moves along the guide groove 27, and finally the table main body 1 moves to the rear end of the guide groove 27 by pushing the locking plate part 36c of the lever 36 out of the guide groove 27 against the biasing force of the spring S2. At the same time as the movement, the lever 36 is rotated by the biasing force of the spring S2, and the locking plate part 36c enters the guide groove 27, restricting the movement of the intermediate piece part 7a and keeping the table main body 1 in the use state. Therefore, in this structure, the stability of the use state is maintained even if a large external force is applied to the table main body 1. On the other hand, when it is desired to switch the table main body 1 to the storage state, the table main body 1 is pushed downward while pushing the operating part 36a of the lower lever 36 upward. When the lever 36 is pressed, it is rotated like a seesaw with the shaft member 29 as the fulcrum, and the rear locking plate portion 36c is displaced slightly downward, releasing the retained state (i.e., allowing relative movement between the table main body 1 and the shaft 7). As a result, the table main body 1 can be rotated to the stored state along the rotation path of the shaft 7, accompanied by the guiding action of the shaft 7 relative to the guide groove 27. In the stored state, the terminal sides of both pieces 7b of the table main body 1 are in pressure contact with the cam portions of the corresponding cams 6, so that the table main body 1 does not rattle or rotate inadvertently upward even when subjected to vibration.

[0044] (6) On the other hand, the table main body 1 separated from the opening / closing mechanism 2 has leg members 8 that can be switched between a tilted state and an upright state, and an operation knob 19 that holds the leg members 8 in the tilted state and releases the holding of the tilted state. When the operation knob 19 is pulled outward against the biasing force of the spring S3, the abutment portion 19c comes out from between the back surface 11 and the leg member side portion 8b, thereby enabling the leg members 8 to rotate. For this reason, in this structure, for example, the table main body 1 can be carried outside the vehicle cabin in a separated state detached from the opening / closing mechanism 2, and with the operation knob 19 pulled against the biasing force of the spring 3, each leg member 19 can be rotated outward about the shaft member 18 as a fulcrum, and used as a table with the leg members 8. In addition, the leg members 8 are restricted by the abutment portion 19c so as not to inadvertently stand up via the operation knob 19 in the tilted state, so that rattling can be suppressed even if traveling vibrations are applied. In addition, in this structure, the leg member 8 has an auxiliary leg 9 which can be switched between a shortened state arranged along the outer periphery and an extended state in which the protruding dimension is increased, and by simply rotating the auxiliary leg 9 about the shaft member 18a as a fulcrum, the table height can be increased by switching to the extended state, improving usability.

[0045] (Structure of the Second Form) This vehicle table device is different from the first form in that the opening / closing mechanism 2 is detachable from the seat back 4 or seat cushion of the seat to which it is attached, as shown in Figures 11 to 13. In this explanation, the same reference numerals are used for the same members and parts as in the first form, and new reference numerals are added to the different members and parts to avoid redundant description as much as possible.

[0046] 11 to 13, the vehicle table device is composed of a table main body 1 and an opening / closing mechanism 2, similar to the first embodiment. The relationship between the table main body 1 and the opening / closing mechanism 2 may be the same as the first embodiment, that is, the table main body 1 is detachable from the opening / closing mechanism 2 by engaging / disengaging the locking protrusion 15, which is the engaged part, with the engaging plate 3, which is the engaging part, or the table main body 1 is non-detachable from the opening / closing mechanism 2 (for example, the configuration disclosed in Japanese Patent No. 4451549).

[0047] The new configuration has a pair of hooks 45 as engaged parts protruding from the rear surface 4b of the seat back of the seat to which the seat is to be attached, and a pair of engagement holes 53, 54 as locking parts that engage and disengage with each hook 45 are provided in the bracket 5 of the opening / closing mechanism unit 2.

[0048] Here, the hook 45 is substantially L-shaped, and the vertical piece 4b is disposed upward along the back surface 4b with the horizontal piece 45a fixed to a corresponding part of the frame 40, which is a framework of the seat back 4, or to a plate material 41 joined to the frame 40. The tip of the vertical piece 4b is a claw 45c that protrudes slightly in the same direction as the horizontal piece 45a. The engagement hole 53 is a rectangular hole of a size that allows the hook 45 to be inserted, as shown in Fig. 12(a). The engagement hole 54 is smaller in vertical dimension than the engagement hole 53, and is shaped to engage with the claw 45c in the inserted state.

[0049] As shown in the schematic diagram of Fig. 11(b), the seat back 4 has a frame 40 formed in a substantially frame shape, a urethane foam 42 held by the frame 40, and a skin material 43 covering the urethane foam 42. A holding portion into which a headrest stay (not shown) is inserted, a plate material 41, and the like are attached to the upper portion of the frame 4. An end of the horizontal piece 45a is joined to the plate material 4, but an end of the claw portion 45c is not joined. Therefore, the claw portion 45c abuts against the urethane foam 42, but when the vicinity of the claw portion of the urethane foam 42 is pressed, a gap is formed between the tip of the claw portion 45c and the plate material 41.

[0050] (Main Operation) Next, the operation of attaching and detaching the above-mentioned opening / closing mechanism 2 to and from the seat back rear surface 4b will be described. Note that this operation may be performed in a state where the opening / closing mechanism 2 is connected to the table main body 1, or in a state where the table main body 1 is separated. That is, FIG. 12(a) shows a state where the bracket 5 on the opening / closing mechanism side is brought close to the seat back rear surface 4b so that the hooks 45 corresponding to the left and right engagement holes 53 of the bracket 5 are inserted. FIG. 12(b) shows a state where the bracket 5 on the opening / closing mechanism side is moved downward while being pressed with the hooks 45 corresponding to the left and right engagement holes 53 inserted, so that the horizontal pieces 45a of each hook come into contact with the upper end surfaces of the engagement holes 53 and the claws 45c enter the upper engagement holes 54. FIG. 13(a) shows a state where the pressing force of the bracket 5 is released and the claws 45c are engaged and fixed in the engagement holes 54 by the reaction force of the urethane foam 42. By such a simple operation, the opening / closing mechanism side bracket 5 is fixed to the seat back rear surface 4b by the engagement of the engagement holes 53, 54 with the hooks 45.

[0051] Furthermore, when releasing the engagement and separating the bracket 5 on the opening / closing mechanism side from the seat back 4, pushing the bracket 5 toward the seat back 4 from the state shown in Fig. 13(a) causes the claw portion 45c to disengage from the engagement hole 54 and disengage. When the bracket 5 on the opening / closing mechanism side is moved upward from this state, the horizontal piece 45a comes into contact with the lower end surface of the engagement hole 53 as shown in Fig. 12(a), and the claw portion 45c enters the engagement hole 53. When the bracket 5 on the opening / closing mechanism side is separated from the rear surface 4b of the seat back from this state, it is separated and can be carried alone.

[0052] Therefore, in the second form, when the engaging holes 53, 54 of the bracket 5 are disengaged from the hook 45 on the seat back side and the bracket 5 (opening / closing mechanism 2) is removed from the seat back 4, the bracket 5 (opening / closing mechanism 2) does not remain on the seat back 4 side, which improves the appearance and makes the vehicle interior space larger. Note that with this structure, the bracket 5 can be easily engaged or disengaged by moving the bracket with the hook 45 inserted into the engaging holes 53, 54. This operation is easy to handle because the bracket 5 is integrated with the opening / closing mechanism 2, or is integrated with the opening / closing mechanism 2 and the table main body 1.

[0053] Although the present invention is embodied in the various forms described above, except for the technical elements described in claim 1, the details may be modified and, for example, a holder for holding containers may be added as appropriate. [Explanation of symbols]

[0054] 1...table body (10 is a front surface, 11 is a back surface, and 12 is a surrounding wall) 2. Opening and closing mechanism 3 Engagement plate (lock part) 4. Seat back 5... Bracket (50 is a horizontal plate portion, 51 is a vertical plate portion) 6. Cam 7. Shaft 8... Leg member (18 is an axis member) 9... Auxiliary leg (18a is an axis member) 15... Locking protrusion (engaged part) 18...Shaft member 19. Operation knob 20... Support plate 30 Engagement plate (lock portion) 35 Lever for releasing the locking part 36... Shaft lock lever 45 Hook (engaged part) 53 Engagement hole (lock portion) 54 Engagement hole (lock portion) S1~S3...Spring

Claims

1. A vehicle table device including a table body and an opening / closing mechanism for switching the table body between a use state and a folded-up storage state with respect to a mounting target in a vehicle interior, A vehicle table characterized in that the opening and closing mechanism has a locking portion that engages with an engageable portion provided on the table main body and / or the mounting partner to enter a connected state, and disengages from the engagement to enter a separated state.

2. 2. The vehicle table device according to claim 1, wherein the opening and closing mechanism has a bracket that is fixed to the mounting part, and a support plate on which the table main body can be placed is rotatably attached to the bracket.

3. The vehicle table device according to claim 2, characterized in that the locking portion is an engagement plate slidably attached to the support plate, and can be switched from a protruding state in which it engages with the engaged portion to a retracted state in which it disengages by operating against the biasing force of the lever.

4. The vehicle table device according to claim 1, characterized in that the opening and closing mechanism has a bracket that is arranged to be movable relative to the mounting part, and a support plate on which the table main body can be placed is rotatably attached to the bracket.

5. The vehicle table device according to claim 4, characterized in that the locking portion is an engagement hole provided in the bracket, and is engaged and disengaged with the engaged portion by moving the bracket while the engaged portion protruding toward the mounting partner is inserted into the engagement hole.

6. The vehicle table device according to claim 2 or 4, characterized in that the opening and closing mechanism has a cam portion and a shaft rotatably supported on the cam portion, and the table main body is switched between a stored state and a usage state via the shaft which slides along a guide groove provided on the support plate.

7. The vehicle table device according to claim 1, characterized in that the table main body has leg members that can be switched between a tilted state in which the table is tilted toward the rear side and an upright state in which the table is protruded toward the rear side, and an operating knob that maintains the leg members in the upright state or releases the upright state against a biasing force, thereby enabling the leg members to be switched to the upright state.

8. The vehicle table device according to claim 7, characterized in that the leg member is switchable between a shortened state arranged along the outer periphery and an extended state in which the protruding dimension is extended, and has an auxiliary leg, at least a portion of which is sandwiched between the table main body and the leg member when the table is in the shortened state and in the overturned state.

9. 2. The table device for a vehicle according to claim 1, wherein the mounting member is a seat.

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