KR200254065Y1 - Improved seat structure of tourist coach - Google Patents

Abstract

The seat has a cushion, a pair of backrests, a pair of head rests, and a pair of arm rest pads. The cushion has a width of a double seat. The head rest and backrest have a width of a single seat. The front face of the head rest has a concave arc portion, and the rear face has an inclined arc portion. The head rest is rotated 180 °. The fastening device combines the headrest and the backrest. The coupling device is arranged in a position adjacent to the two backrests. The arm rest is coupled to each side of the cushion. The pad is coupled to the arm rest to form the arm rest pad. The pad and the arm rest are joined by a rotation control device so that the pad can be rotated by 90 °, so it is used as a single seat. The double sheet is obtained by returning the arm rest pads.

Description

Improved seat structure of tourist coach

The present invention relates to an improved seat structure of a sightseeing bus, and more particularly, to a seat structure capable of quickly converting from a double seat to a single seat or vice versa.

A number of single seats 1 (shown in FIG. 1) or double seats 2 (shown in FIG. 2) are fixedly arranged in a prior art tour bus. 1 and 2, the cushion 3 of the single seat 1 and the cushion 4 of the double seat 2 have the same width. The backrest 5 of the single seat 1 is wider than the width of the cushion 3 and has two wide arm rests 7, while the double seat 2 has a pair of narrow backrests 6 and cushions 4. Divide the width of). Each side of the backrest 6 engages a flat arm rest 8. While two people can sit on the double seat 2, only one person can sit on the single seat 1, which is not changeable. Therefore, the arrangement of seats in the sightseeing bus is fixed and cannot change with the number of passengers.

Accordingly, one object of the present invention is to provide an improved seat structure of a sightseeing bus, and the structure of the backrest is suitably designed so that the seat can be used as a double seat or a single seat. In addition, the change between the single seat and the double seat is convenient because the mechanic or passenger can conveniently perform the operation. Therefore, the number of seats in the sightseeing bus varies with the number of passengers. If there are many passengers, the double seat can be used to accommodate them. If there are only a few passengers, each passenger can have a comfortable and comfortable single seat.

In order to achieve the above object, the seat of the present invention includes a cushion, a pair of backrests, a pair of head rests, and a pair of arm rest pads. The cushion has a width of a double seat. The back and headrests have the width of a single seat. The front face of each head rest has a concave arc portion, and the rear face of each head rest has an inclined arc portion. The head rest can be rotated 180 °. The head restraints engage the backrest through the fixing device. The coupling device is arranged in an adjacent position of the two backrests. Each side of the cushion has an arm rest, and engages the pad to form the arm rest pad. The pad and the arm rest are joined together through a rotation control device so that the pad can be rotated 90 ° to form a protruding state of its width, so it is used as a single sheet. The use state of the double sheet is obtained by returning the armrest pad.

Various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the accompanying drawings.

1 is a perspective view of a conventional single sheet,

Figure 2 is a perspective view of a conventional double sheet,

3 is a perspective view of the present invention used as a double sheet,

4 is a perspective view of the present invention used as a single sheet,

Figure 5 is a cross-sectional view in the longitudinal direction of the present invention,

6 is a cross-sectional view taken along the line A-A shown in FIG.

7 is a perspective view showing a coupling device of the present invention,

Figure 8 is a cross-sectional view of the compression fastener of the present invention,

9 is a cross-sectional view showing the action of the compression fastener of the present invention,

10 is a cross-sectional view of the rotation control device of the present invention,

11 is a side view of the rotation control device of the present invention;

12 is a rear view of the rotation control device of the present invention,

Figure 13 is a perspective view showing the operation of the present invention.

<Description of Symbols for Main Parts of Drawings>

10: seat 11: cushion

12: backrest 13: head rest

14: Arm Rest Pad 21: Arm Rest

22: pad 23: narrow side

24: wide side portion 25: coupling device

31: insert pole 32: bushing

34: crimp fasteners 35, 36: inner, outer ring

37: crimping head 50: rotation control device

51: inner bushing 52: outer bushing

53: sleeve 54: recess

55: sleeving part 56: elastic part

As shown in Figs. 3 to 13, the seat 10 of the sightseeing bus of the present invention includes a cushion 11, a pair of backrests 12, a pair of headrests 13, and a pair of arms. The rest pad 14 is provided. The cushion 11 of the seat 10 has a width of a double seat and is elevated by the seat foot 15. The backrest 12 is coupled perpendicularly to the rear end of the cushion 11. The backrest 12 has a width of a single sheet.

The head rest 13 also has a width of a single sheet. The head rest 13 has a front face 16 and a back face 17 such as a width face. The head rest 13 is coupled to the backrest 12. The front face 16 has a concave arc portion 18, and the rear face 17 has an inclined arc portion 19 inclined toward an adjacent head rest. When the cushion 11 is used as a double seat, the front face 16 faces forward. If a single sheet is to be formed, the head rest 13 is rotated 180 ° and the inclined arc 19 of the rear face 17 of the head rest 13 is used as a special arc surface. In other words, the two head rests 13 form a shape with a concave middle portion. This explains the change from the double sheet shown in FIG. 3 to the single sheet shown in FIG.

The arm rest pad 14 has a pair of arm rests 21 and a pair of pads 22. The arm rests 21 are coupled to both sides of the cushion 11. The arm rest 21 may be coupled to the seat foot 15 if only the bottom of the arm rest is fixed in place. The pad 22 is coupled to the arm rest 21. The pad 22 has a narrow face 23 and a wide face 24. The pad 22 can be rotated. When the cushion 11 is used as a double seat, the narrow face portion 23 faces upward. When the cushion 11 is used as a single seat, the wide face 24 faces upwards.

As shown in FIGS. 5 and 6, the fixing device 30 is arranged between the head rest 13 and the backrest 12. The fastening device 30 has an insertion pawl 31, a bushing 32, and a compression fastener 34. The insertion pole 31 is coupled to the bottom center of the head rest 13. Bushing 32 is coupled within backrest 12. The insertion pawl 31 is inserted into the bushing 32 and positioned by the compression fastener 34.

As shown in Figs. 8 and 9, the bushing 32 does not protrude outward of the upper surface of the backrest 12, and the compression fastener 34 is coupled to the upper portion of the bushing. The compression fastener 34 has an inner ring 35 and an outer ring 36. The inner ring 35 has a compression head 37. The outer ring 36 has a through hole 38. The pressing head 37 protrudes out of the through hole 38. The small elastic portion 39 is disposed between the inner ring 35 and the outer ring 36. The small elastic portion 39 is located in the gap 40 of the outer ring 36. The inner ring 35 can be used to lock the annular groove 41 of the insertion pawl 31. If the insertion pawl 31 has a plurality of annular grooves 41 thereon, the compression fastener 34 can be used to adjust the position of the insertion pawl 31, so that You can adjust the height. The reduction part 33 is disposed near the lower end of the insertion pawl 31. The main elastic portion 42 is coupled between the reduction portion 33 and the inner lower surface of the bushing 32. The main elastic part 42 is a compression spring. When the crimping fastener 34 releases the restriction to the insertion pawl 31, the insertion pawl 31 moves upwards to facilitate adjustment of the headrest 13 from double seat to single seat or from single seat to double seat. It will spring automatically.

The back 12 can be flipped over. The mechanism for overturning the backrest is a standard device and has nothing to do with the invention. The seat of the present invention is basically a double seat, and initially two people sit side by side. Each backrest has a hydraulic support structure to adjust the angle of the backrest. If the sheet is used as a double sheet, it cannot be adjusted separately. The two backrests need to be adjusted together so that they move simultaneously. One of the hydraulic support structures may temporarily fail. This control action can be performed or set by the driver or mechanic. In addition, since the two backrests move simultaneously, the coupling device 25 is required to be joined together so that the two backrests can be flipped simultaneously. As shown in Fig. 7, the coupling device 25 is an inverted U-shaped fastener 26 inserted into the insertion holes 27 of the two backrests. However, the coupling device 25 is not limited to an inverted U-shaped fastener. Any structure capable of joining the two backrests can be used as the coupling device 25. If flatness is desired, the thin pad 28 shown in dashed lines in FIG. 6 may cover the backrest.

As shown in Figs. 11 and 12, the rotation control device 50 is located in the arm rest pad 14. The rotation control device 50 may be used such that the pad 22 is rotated within a range of 90 °. The rotation control device 50 has an inner bushing 51 and an outer bushing 52. The inner bushing 51 is engaged with the arm rest 21, while the outer bushing 52 is engaged with the pad 22. The outer bushing 52 is sleeved on the inner bushing 51. The inner bushing 51 engages the annular sleeve 53 on the outside. The annular sleeve 53 has a recess 54. The outer bushing 52 has a sleeving portion 55. The sleeving part 55 and the recessed part 54 are located in engagement. The elastic part 56 in the inner bushing 51 may be coupled to a suitable position, preferably the outer end of the face, of the outer bushing 52. The elastic portion 56 is a long spring.

The rotation control device 50 mainly uses two bushings to support the pad 22. The outer bushing 52 and the pad 22 are connected together. The pad 22 can be pushed outward to stretch the elastic part 56 so that the toothed sleeving part 55 does not press the recess 54 of the annular sleeve 53 tightly. Therefore, the outer bushing 52 can be rotated. Since the narrow face portion 23 of the pad 22 faces upward when used as a double sheet, the pad 22 can only be rotated inward 90 ° and fixed thereto. The sleeving portion and the recessed portion are then joined together to serve to position the passenger's elbow when used as a single seat. The use state of the double sheet can be achieved by reversing the above operation. The operation of rotating the head rest and the pad shown in Fig. 13 is utilized to make a free change between the double seat and the single seat.

In summary, in the present invention, the head rest and the pad of the arm rest pad can be utilized so that the change between the single seat and the double seat can be achieved with minimal action. The double side of the head rest may be utilized to allow the passenger's head to be positioned more comfortably thereon. The headrests coincide with the positions of the compression fasteners so that both single and double seats can be used. In addition, the rotation of the pad can be utilized to reduce the partial space of the cushion so that the passenger can sit more comfortably on the seat used as the single seat.

Although the present invention has been described with reference to the preferred embodiments, it will be understood that the present invention is not limited to the detailed description. Various substitutions and alterations have been suggested in the foregoing detailed description, and the rest will be evident to one of ordinary skill in the art. Therefore, all substitutions and changes are included within the scope of the invention as claimed in this claim.

Claims (8)

Cushion with a double seat width; A pair of backrests orthogonally coupled to a rear end of the cushion and having a width of a single seat; When the cushion is used as a single seat having a width of a single seat and having a concave arc as a wide side and having an inclined arc which inclines toward the front and adjacent headrests facing forward when the cushion is used as a double seat. A pair of headrests having a rearward facing forward and coupled to the backrest; And A rotatable pair of arm rests coupled to both sides of the cushion, a narrow face portion coupled to the arm rest upwards when the cushion is used as a double seat and a wide face portion upward when the cushion is used as a single seat An improved seat structure for a sightseeing bus, comprising a pair of arm rest pads consisting of a pair of pads. 2. The fastening device of claim 1, wherein the fastening device is positioned between the backrest and the headrest, the fastening device includes an insertion pawl, a bushing and a compression fastener, the insertion pawl being coupled to a lower surface of the headrest. And the bushing is coupled in the backrest and the insertion pawl is inserted in the bushing and positioned by the compression fastener. 3. The compression fastener of claim 2 wherein the compression fastener is located at the top of the bushing, has an inner ring and an outer ring, the inner ring has a crimp head, the outer ring has a through hole, and the crimp head has a through hole. Protrude outwardly, a small elastic portion is located between the inner ring and the outer ring, the insertion pawl having at least an annular groove, the inner ring being used to lock the annular groove of the insertion pawl And the annular groove of the insertion pawl is used to adjust the height of the insertion pawl. 3. The improved seat structure of a sightseeing bus as claimed in claim 2, wherein a reduction part is located at a lower end of the insertion pawl, and a main elastic part is coupled between the reduction part and the inner bottom surface of the bushing. 2. The improved seat structure of a sightseeing bus according to claim 1, wherein the coupling device is arranged between the two backrests and joined together so that the two backrests can be flipped back at the same time. 6. The improved seat structure of a sightseeing bus according to claim 5, wherein the coupling device is an inverted U-shaped fastener inserted into the two backrests. The improved seat structure of a sightseeing bus according to claim 1, wherein a rotation control device is located in the arm rest pad so that the pad can be rotated within a 90 ° range. 8. The rotation control device of claim 7, wherein the rotation control device has an inner bushing and an outer bushing, the inner bushing is coupled with the arm rest, the outer bushing is engaged with the pad, and the outer bushing is sleeved on the inner bushing. The inner bushing engages an annular sleeve from the outside, the annular sleeve has a recess, the outer bushing has a sleeving portion, the sleeving portion and the recess are coupled to each other and positioned; An elastic seat structure in a bushing, characterized in that the elastic part in the bushing is used to join the outer bushing.