JP2019147477A - Seat device - Google Patents

Abstract

To provide a seat device capable of easily be assembled and disassembled.SOLUTION: A seat device 1 includes a support part 5 and a seat body 4. The seat body 4 has a seat part 3 provided so as to be movable in a fore-and-aft direction relative to the support part 5, and a seat back 2 connected to the seat part 3 in a tiltable manner. The seat part 3 moves in conjunction with the seat back 2. The seat part 3 is provided with a pair of third shafts 13. The support part 5 includes a pair of right and left guide parts 7 fixed to a base frame 6. The guide part 7 supports the third shafts 13 so as to be movable in a fore-and-aft direction, and has a third guide groove 73 to which the third shaft 13 is inserted, and a notch 74 which is formed by notching the guide part 7 from its upper edge part to an intermediate part of the third guide groove 73. The notch 74 is formed in a width such that the third shaft 13 can pass therethrough.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a seat device provided with a reclining mechanism.

  2. Description of the Related Art Conventionally, some seat devices such as passenger seats have a reclining mechanism. As a seat device provided with this reclining mechanism, a device in which a back slip and a seat portion operate in an interlocking manner (referred to as a cradle method) like a cradle is known (see Patent Document 1).

  The above-described seat device in which the back slip and the seat are operated in an interlocked manner, for example, the back slip is connected to the seat so as to be tiltable, and the shafts provided in the back slip and the seat are respectively support portions (fixed at a fixed position). The seat moves in conjunction with the tilting of the back-slip by inserting each shaft along the guide groove when the back-slip is tilted. To do.

JP 2014-83934 A

  In the conventional seat device described above, when the seat is assembled to the support, a complicated operation is performed in which the shaft is inserted into the guide groove of the support while the shaft is attached to the seat using a tool such as a wrench. There was a need. Further, when removing the seat portion from the support portion, it has been necessary to perform a complicated operation such as removing the shaft from the guide groove of the support portion while removing the shaft from the seat portion using a tool.

  The present invention has been made in view of the above-described problems, and an object thereof is to provide a seat device that can be easily assembled and disassembled.

  The invention described in claim 1 includes a support part, a seat part provided to be movable in the front-rear direction with respect to the support part, and a back slip connected to the seat part so as to be tiltable. In the seat device in which the seat portion moves in conjunction with the tilting of the back slip, a shaft is provided on one of the seat portion and the support portion, and a guide portion that supports the shaft so as to be movable in the front-rear direction is provided on the other side. A guide groove extending in the front-rear direction in which the shaft is inserted, and a notch through which the shaft can pass, the guide portion being cut from the outer edge portion to the guide groove. It is a seat apparatus characterized by having.

  The invention described in claim 2 is the invention described in claim 1, wherein the shaft is located at one end of the guide groove in the upright state of the back slip, and the full reclining state of the back slip is in the full reclining state. The shaft is located at the other end portion of the guide groove, and the notch is provided from the outer edge portion of the guide portion to the intermediate portion of the guide groove.

  The invention described in claim 3 is the invention described in claim 1 or 2, wherein the shaft in the guide groove passes through the notch so that the seat portion is connected to the back slip. It is characterized in that it can be swung up by turning around the center.

  According to the invention described in claim 1, the guide portion includes a guide groove into which the shaft is inserted, and a notch through which the shaft can pass, the guide portion being cut out from the outer edge portion to the guide groove. Therefore, when the seat portion is assembled to the support portion, the shaft may be inserted into the guide groove through the notch, and the seat portion can be easily assembled to the support portion without a tool. Moreover, when removing a seat part from a support part, what is necessary is just to extract a shaft from a guide groove through a notch, and a seat part can be easily removed from a support part without a tool. Thus, according to the present invention, a seat device that can be easily assembled and disassembled can be provided.

  According to the invention described in claim 2, since the notch is provided from the outer edge portion of the guide portion to the intermediate portion of the guide groove, the shaft in the guide groove is in the upright state and the full reclining state of the back slip. Can be prevented from unintentionally passing through the notch.

  According to the invention described in claim 3, since the shaft in the guide groove passes through the notch, the seat is rotated around the connecting portion with the back slip, so that without a tool, The seat can be easily flipped up, and cleaning and maintenance below the seat can be easily performed.

It is a perspective view of the seat device concerning one embodiment of the present invention, and is a figure showing the upright state of back slip. It is a perspective view which shows the state by which the back slip of FIG. 1 was half-reclined. FIG. 3 is a perspective view showing a state in which the seat portion of FIG. 2 is flipped up. It is the perspective view which looked at the seat apparatus of FIG. 1 from the back side. It is an exploded view of the seat apparatus of FIG. It is a side view of the seat apparatus of FIG. 1, and is a figure which shows the upright state of a back slip. It is a side view which shows the state in which the table of FIG. 6 was located in the use position. It is a side view which shows the state by which the back slip of FIG. 6 was half-reclined. It is a side view which shows the state in which the table of FIG. 8 was located in the use position. It is a side view which shows the state by which the back slip of FIG. 6 was fully reclined. It is a side view which shows the state in which the table of FIG. 10 was located in the use position.

  A “seat device” according to an embodiment of the present invention will be described with reference to FIGS. A seat device 1 shown in FIGS. 1 to 11 is installed in a passenger room of a railway vehicle, and includes a support portion 5 and a seat body 4.

  The support part 5 is attached to a footrest fixed to the floor in the passenger cabin via a turntable, and supports the seat body 4. The support portion 5 includes a frame 6 fixed to the turntable, a pair of left and right guide plates 8 fixed to the frame 6, and a pair of left and right guide portions 7 fixed to the frame 6. .

  The seat body 4 includes a seat portion 3 provided so as to be movable in the front-rear direction with respect to the support portion 5, and a back slip 2 connected to the seat portion 3 so as to be tiltable. The seat 3 moves in conjunction with the tilting. The seat body 4 is supported by the support portion 5 so as to be movable between the upright position shown in FIG. 6 and the full reclining position shown in FIG. That is, the seat device 1 of the present embodiment includes a cradle type reclining mechanism.

  As shown in FIGS. 1 to 3, the frame 6 includes a front bar 61 that extends horizontally in the left-right direction, a rear bar 62 that is disposed behind the front bar 61 and extends in parallel with the front bar 61, and these front bars. It has a pair of left and right side bars (not shown) connecting the 61 and the rear bar 62, and is formed in a frame shape.

  Further, in the present specification, the “left-right direction” is the left-right direction as viewed from the seated person of the seat device 1 and is the direction that coincides with the width direction of the seat body 4. Further, in the present specification, the “front-rear direction” is a front-rear direction viewed from the seated person of the seat device 1 and is a direction orthogonal to the width direction and the height direction of the seat body 4.

  The pair of guide plates 8 movably support a pair of left and right first shafts 11 and a pair of left and right second shafts 12 provided on the backslip 2. Each is fixed. The pair of guide plates 8 are formed in a plate shape extending upward from the rear bar 62 and are opposed in the left-right direction. Each guide plate 8 has a first guide groove 81 into which the first shaft 11 is inserted, and a second guide groove 82 into which the second shaft 12 is inserted.

  The first guide groove 81 is a groove that guides the movement of the first shaft 11. The first guide groove 81 penetrates the guide plate 8 and extends in an arc shape in the vertical direction, and the lower end portion is positioned forward of the upper end portion. The first shaft 11 moves along the first guide groove 81 when the back slip 2 is tilted, and is positioned at the upper end portion of the first guide groove 81 in the upright state of the back slip 2 and is full of the back slip. In the reclining state, it is located at the lower end portion of the first guide groove 81.

  The second guide groove 82 is a groove that guides the movement of the second shaft 12. The second guide groove 82 penetrates the guide plate 8 and extends in an arc shape in the vertical direction, and the lower end portion is positioned forward of the upper end portion. Further, the second guide groove 82 is located below and in front of the first guide groove 81. The second shaft 12 moves along the second guide groove 82 when the back slip 2 is tilted, and is positioned at the upper end of the second guide groove 82 in the upright state of the back slip 2 so that the back slip is full. In the reclining state, it is located at the lower end of the second guide groove 82.

  The pair of guide portions 7 support a pair of left and right third shafts 13 (corresponding to “shafts”) provided on the seat portion 3 so as to be movable in the front-rear direction. It is fixed to each. Each guide portion 7 is formed in a plate shape extending in the front-rear direction, and includes a third guide groove 73 (corresponding to a “guide groove”) and a notch 74.

  The third guide groove 73 is a groove into which the third shaft 13 is inserted, and penetrates the guide portion 7 and extends in the front-rear direction. In the present embodiment, the third guide groove 73 has a gentle upward slope that gradually rises upward from the rear end toward the front end. The third shaft 13 moves along the third guide groove 73 in conjunction with the tilting of the back slip 2. In the present embodiment, the third shaft 13 is located at the rear end of the third guide groove 73 in the upright state of the back slip 2, and the third shaft 13 is in the third reclining state of the back slip in the full reclining state. Located at the front end of the guide groove 73.

  The notch 74 is a notch obtained by notching the guide portion 7 from the outer edge portion to the third guide groove 73. In the present embodiment, a notch 74 is provided from the upper edge portion of the guide portion 7 to the intermediate portion of the third guide groove 73. The notch 74 is formed to have a width that allows the third shaft 13 to pass therethrough.

  As described above, the seat body 4 includes the back slip 2 and the seat portion 3. The back slip 2 has a back slip frame 20 and a cushion body attached to the back slip frame 20, but the cushion body is not shown in FIGS. Similarly, the seat portion 3 includes a seat frame 30 and a cushion body attached to the seat frame 30, but the cushion body is not shown in FIGS.

  The back slip frame 20 is formed in a plate shape having a size capable of supporting the back of the seated person. In the present embodiment, the back slip frame 20 is made of synthetic resin such as fiber reinforced plastic. The back slip frame 20 includes a pair of first shafts 11, a pair of second shafts 12 for connecting the back slip frame 20 to the seat frame 30 so as to be tiltable, and a first accommodating portion 41. And a second accommodating portion 42 are provided.

  The first accommodating portion 41 and the second accommodating portion 42 are formed in a cylindrical shape separate from the back slip frame 20. As shown in FIG. 4, the first housing portion 41 and the second housing portion 42 are fixed to the back slip frame 20 so that both end portions protrude from the left and right side surfaces of the back slip frame 20. Further, the first accommodating portion 41 and the second accommodating portion 42 are fixed so that the central axis direction thereof coincides with the width direction of the back slip frame 20. The first accommodating portion 41 is fixed to the lower side of the back slip frame 20. The second accommodating portion 42 is fixed below the first accommodating portion 41 and at the lower end portion of the back slip frame 20.

  The 1st accommodating part 41 accommodates the pair of 1st axis | shaft 11 formed in the column shape so that protrusion and retraction are possible. That is, one of the first shafts 11 can project and retract from one end of the first housing portion 41, and the other first shaft 11 projects from the other end of the first housing portion 41. It is supposed to be sunk. Similarly, the 2nd accommodating part 42 accommodates a pair of 2nd axis | shaft 12 formed in the column shape so that protrusion and retraction are possible. That is, one second shaft 12 can project and retract from one end of the second housing portion 42, and the other second shaft 12 projects from the other end of the second housing portion 42. It is supposed to be sunk.

  Further, the seat device 1 includes shaft displacing means for projecting and retracting the shafts 11 and 12 with respect to the housing portions 41 and 42. The shaft displacing means is provided for each of the shafts 11 and 12. As shown in FIGS. 4 and 5, the shaft displacing means for projecting and retracting the first shaft 11 located on the left side as viewed from the seated person is housed in the first housing portion 41, and the first shaft 11 is moved to the first. A spring (not shown) urging in a direction (left side) projecting from the housing portion 41, a groove 43 </ b> L in which the left side portion of the first housing portion 41 is notched in the projecting and retracting direction of the first shaft 11, And a pin 44 that is connected to the first shaft 11 and is positioned outside the first accommodating portion 41 through the groove 43L. The groove 43L is exposed on the back surface of the back slip frame 20. Further, the first shaft 11 can be projected and retracted by sliding the pin 44 in the groove 43L.

  The shaft displacing means for projecting and displacing the first shaft 11 located on the right side when viewed from the seated person is housed in the first housing portion 41 in the same manner as the left shaft displacing means described above. A spring urging in a direction (right side) protruding from the first housing portion 41, a groove 43R in which the right side portion of the first housing portion 41 is cut out in the projecting and retracting direction of the first shaft 11, and the first And a pin 44 that is connected to the shaft 11 and is positioned outside the first accommodating portion 41 through the groove 43R. The groove 43R is exposed on the back surface of the back slip frame 20. Further, the first shaft 11 can be projected and retracted by sliding the pin 44 in the groove 43R.

  The shaft displacement means for projecting and displacing the second shaft 12 located on the left side when viewed from the seated person has the same configuration as the shaft displacement means for projecting and displacing the first shaft 11 located on the left side, and thus description thereof is omitted. To do. Further, the shaft displacement means for projecting and displacing the second shaft 12 positioned on the right side as viewed from the seated person has the same configuration as the shaft displacing means for projecting and displacing the first shaft 11 positioned on the right side. Is omitted.

  The seat frame 30 connects the front frame 32 extending in the left-right direction, the rear frame 33 disposed behind the front frame 32 and extending in parallel with the front frame 32, and the front frame 32 and the rear frame 33. And a pair of left and right side frames 31 formed in a frame shape. Further, the seat frame 30 has a plurality of springs 34 spanned between the pair of side frames 31. The spring 34 is formed by bending an iron wire into a wave shape.

  As shown in FIG. 5, the pair of side frames 31 have rear end sides extending rearward and upward from the rear frame 33. A circular through hole 31 a is provided at the rear end of each side frame 31. By passing the pair of second shafts 12 described above through the through holes 31 a of the pair of side frames 31, the back slip frame 20 is tiltably connected to the seat frame 30. The third shaft 13 described above is attached to the front side of each side frame 31. The third shaft 13 is formed in a columnar shape, and is attached so as to protrude laterally from the outer surface of the side frame 31.

  The seat body 4 tilts like a cradle over the upright state shown in FIG. 6 and the full reclining state shown in FIG. 10 by inserting the shafts 11, 12, 13 into the guide grooves 81, 82, 73. It is supported by the support part 5 as possible.

  The seat device 1 also includes a seat lock 15 (shown in FIG. 4) that holds the seat body 4 at a desired tilt angle, and an operation unit (provided on an armrest or the like) that unlocks the seat lock 15. ing. In order to recline the seat body 4, the back slip 2 is pushed backward with the back of the seated person or the like in a state where the lock of the seat lock 15 is released by operating the operation unit. In order to raise the reclining seat body 4 to the upright state, the back of the seat 2 is released while the seat lock 15 is unlocked by operating the operation unit.

  Further, the seat device 1 includes a table 10 used for a seated person in the back seat behind the seat body 4 and a storage position in which the table 10 is erected along the back surface of the back slip 2 (FIGS. 6 and 8). , 10) and a pair of left and right table arms 9 that are movably supported over a horizontally deployed use position (shown in FIGS. 7, 9, and 11), and each table arm 9 is located above the support portion 5. And a gas spring 16 (shown in FIG. 4) for energizing. Although not shown, a table latch that engages with the table 10 positioned at the storage position is provided on the back surface of the back slip 2.

  The pair of table arms 9 are formed in a long and thin plate shape, and lower half portions thereof are respectively positioned between the pair of guide plates 8 and the left and right side surfaces of the back slip frame 20. The upper half of the pair of table arms 9 is positioned above the guide plate 8. Further, the upper ends of the pair of table arms 9 are connected to the table 10. The lower half of each table arm 9 is provided with a first arm side groove 91 through which the first shaft 11 is inserted, and a second arm side groove 92 through which the second shaft 12 is inserted. . The first arm side groove 91 has the same shape and the same size as the first guide groove 81, and the second arm side groove 92 has the same shape and the same size as the second guide groove 82. The table arm 9 has a first arm-side groove 91 guided by the first shaft 11 and a second arm-side groove 92 guided by the second shaft 12, so that the table arm 9 follows the tilt locus of the back slip 2. It is supported movably.

  Next, an example of the assembly procedure of the seat apparatus 1 will be described. As step 1, the support part 5 is assembled. In step 2, the pair of table arms 9 are connected to the table 10. As step 3, the first housing portion 41, the pair of first shafts 11, the second housing portion 42, and the pair of second shafts 12 are attached to the back frame 20. As step 4, the pair of third shafts 13 is attached to the seat frame 30. About these processes 1-4, the order may change. In step 5, the back slip frame 20, the seat frame 30, the pair of table arms 9 and the table 10 are sub-assembled. In step 6, the sub-assembled back slip frame 20, the seat frame 30, the pair of table arms 9 and the table 10 are assembled to the support portion 5. In the step 6, first, the pair of third shafts 13 are respectively passed through the pair of third guide grooves 73. At this time, each third shaft 13 is inserted into each third guide groove 73 through each notch 74. Then, the first shafts 11 are passed through the first guide grooves 81, and the second shafts 12 are passed through the second guide grooves 82. In step 7, the gas spring 16 is attached to the table arm 9 and the guide plate 8. Further, the seat lock 15 is attached to the back slip frame 20 and the rear bar 62. In step 8, the cushion body is mounted on the seat frame 30 and the cushion body is mounted on the back slip frame 20. The seat apparatus 1 is assembled generally through such processes.

  Next, an example of a procedure for removing the seat body 4 from the support portion 5 will be described. As step 1, the gas spring 16 and the seat lock 15 are removed from the support portion 5. As step 2, the pair of third shafts 13 are removed from the pair of third guide grooves 73. At this time, each third shaft 13 passes through each notch 74 and is extracted from each third guide groove 73. As step 3, each first shaft 11 is removed from each first guide groove 81. In step 4, each second shaft 12 is removed from each second guide groove 82. The order of these steps 2 to 4 may be changed. In step 5, the seat body 4 is lifted together with the pair of table arms 9 and the table 10 and removed from between the pair of guide plates 8. The seat body 4 is removed from the support portion 5 through such a process.

  Next, an example of a procedure for performing cleaning and maintenance below the seat portion 3 will be described. First, the seat body 4 is positioned at the half reclining position shown in FIGS. 2 and 8, and the pair of third shafts 13 are positioned directly below the notches 74. Then, as shown in FIG. 3, by lifting the front side of the seat portion 3, each third shaft 13 passes through each notch 74 and is extracted from each third guide groove 73, and the seat portion 3 is further lifted. . In this manner, the seat portion 3 is rotated about the second shaft 12 and is flipped upward. In this state, cleaning and maintenance below the seat portion 3 are performed, and the seat portion 3 is returned to the original position after the cleaning or maintenance is completed.

  According to the seat device 1 described above, since the notch 74 through which the third shaft 13 can pass is provided in the guide portion 7, the seat body 4 can be easily assembled to the support portion 5 without a tool. . Further, the seat body 4 can be easily detached from the support portion 5 without a tool.

  Further, according to the seat device 1 described above, since the notch 74 is provided from the outer edge portion of the guide portion 7 to the intermediate portion of the third guide groove 73, the seat body 4 is a semi-reclining shown in FIGS. The third shaft 13 can pass through the notch 74 when in the state. Therefore, it is possible to prevent the third shaft 13 in the third guide groove 73 from unintentionally passing through the notch 74 in the upright state and the full reclining state of the back slip 2. The basic posture of the seat body 4 used in the railway vehicle is an upright state, and the most frequently occurring is the upright state. Next, the frequency of full reclining is also high. That is, the half reclining state shown in FIGS. 2 and 8 is generally less frequently generated than the upright state and the full reclining state. Therefore, when the seat body 4 is in the half reclining state, the third shaft 13 can pass through the notch 74 in order to prevent the seated person from unintentionally jumping up the seat portion 3. It is valid. However, in the present invention, the notch 74 does not necessarily have to be provided from the outer edge portion of the guide portion 7 to the middle portion of the third guide groove 73, and the notch 74 is third from the outer edge portion of the guide portion 7. It may be provided over one end or the other end of the guide groove 73.

  Further, according to the seat device 1 described above, the third shaft 13 in the third guide groove 73 passes through the notch 74, so that the seat portion 3 rotates around the connection portion with the back slip 2. Therefore, the seat part 3 can be easily lifted up without a tool, and the cleaning and maintenance of the lower part of the seat part 3 can be performed easily.

  In the embodiment described above, the third shaft 13 is provided in the seat portion 3 and the guide portion 7 constitutes the support portion 5. However, in the present invention, the guide portion is provided in the seat portion and the support portion is provided with the shaft. May be provided. For example, the guide portion 7 may be attached to the pair of side frames 31 in the upside down direction, and the third shaft 13 may be fixed near the front bar 61. Even in this case, the seat portion 3 can be attached / detached and flipped up by the same operation as the above-described embodiment.

  Furthermore, in the above-described embodiment, the seat device as a passenger seat installed in the passenger compartment of the railway vehicle has been described. However, the seat device of the present invention is applied to a viewing seat installed in a movie theater, a theater, or the like. May be.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Seat apparatus 2 Back gap 3 Seat part 5 Support part 7 Guide part 13 3rd axis | shaft (axis | shaft)
73 Third guide groove (guide groove)
74 Notch

Claims (3)

A support part; a seat part provided movably in the front-rear direction with respect to the support part; and a back slip connected to the seat part so as to be tiltable, and in conjunction with the tilt of the back slip In the seat device in which the seat moves,
A shaft is provided on one of the seat and the support, and a guide is provided on the other to support the shaft so as to be movable in the front-rear direction.
The guide portion includes a guide groove extending in the front-rear direction in which the shaft is inserted, and a notch through which the shaft can pass, the guide portion being notched from the outer edge portion to the guide groove. A seating device characterized by comprising: In the upright state of the back slip, the shaft is located at one end of the guide groove, and in the full reclining state of the back slip, the shaft is located at the other end of the guide groove,
The seat device according to claim 1, wherein the notch is provided from an outer edge portion of the guide portion to an intermediate portion of the guide groove. 3. The seat according to claim 1, wherein when the shaft in the guide groove passes through the notch, the seat portion is pivoted around a connection portion with the back slip. Seat equipment.

Images