TWI572305B - Recliner - Google Patents

Description

Lounge chair

This creation is about a chair, especially a recliner.

Referring to FIG. 1 , FIG. 2 and FIG. 3 , a conventional reclining chair comprises a seat unit 11 , a seat back 12 pivotally connected to the rear end of the seat unit 11 , and two opposite sides of the seat unit 11 . The armrest unit 13 (only one of the figures is shown in the figure). The seat unit 11 includes a seat frame 111 for the user to ride, and two legs 112 connected to the left and right sides of the seat frame 111 (only one of them is shown in the drawing). The seat back 12 can pivot forward and backward relative to the seat frame 111. Each of the legs 112 has a front bracket 113 and a rear bracket 114 that are cross-connected to each other. Each armrest unit 13 has a sleeve 14 fixed to the top end of each of the front brackets 113, a hand lever 15 disposed in the sleeve 14, and a grip cover disposed outside the hand lever 15. 16. A spring 17 disposed on the handlebar 15 and a locating member 18 disposed between the sleeve 14 and the handlebar 15.

Each sleeve 14 is disposed at the top end of each of the front brackets 113 so as to extend forward and backward, and defines a through hole 141 located at the bottom side. The rear ends of the hand levers 15 are respectively pivotally connected to the left and right sides of the seat back 12, and each of the hand levers 15 can move back and forth with respect to the respective sleeves 14 as the seat back 12 pivots. An outer face 151 of each hand lever 15 cooperates with an inner wall surface 142 of each sleeve 14 to define a sandwich space 19 that communicates with the through hole 141. The grip covers 16 are also pivotally connected to the left and right sides of the seat back 12, respectively, and are respectively covered on the hand lever 15 from top to bottom. The opposite ends of each spring 17 abut against the front ends of the respective sleeves 14 and the front ends of the respective grip covers 16, respectively. Each of the positioning members 18 has a Y-shape in a longitudinal section in the left-right direction, and has an arc-shaped portion 181 penetrating in the through hole 141, and a through-hole 141 is protruded downward from the arc-shaped portion 181. Extension 182. Each of the arcuate portions 181 is made of a resilient plastic or rubber material having an open upward arc shape and holding the respective hand levers 15 and having a body section 183 connecting the respective extensions 182. And two arm segments 184 coupled to opposite sides of the body segment 183. The thickness T1 of each body segment 183 is greater than the thickness T2 of the respective arm segment 184 and greater than the width T3 of the respective interlayer space 19. The width T2 of each arm segment 184 is comparable to the width T3 of the respective sandwich space 19, and is free to move relative to the hand lever 15 in each of the sandwich spaces 19. The extension portion 182 protrudes from the through hole 141 for operation.

Referring to Figures 2, 3 and 4, each of the positioning members 18 can be rotated relative to the respective sleeves 14 in an adjusted position as shown in Figure 3 and a clamping position as shown in Figure 4. In the adjusted position, each of the extending portions 182 extends downward, and the body portion 183 of each positioning member 18 is located in each of the through holes 141, and each of the hand rods 15 can freely move back and forth with respect to the respective sleeves 14. Each of the extending portions 182 is pivotally moved relative to the hand lever 15 to the left and right sides, so that each positioning member 18 can come to the clamping position. In the clamping position, the body segment 183 of each positioning member 18 is snapped into each of the interlayer spaces 19 and abuts against the outer face 151 of the respective hand lever 15 and the respective sleeves 14 The inner wall surface 142 is between. Each of the positioning members 18 utilizes frictional forces with the respective hand levers 15 and the respective sleeves 14 to prevent the respective hand levers 15 from moving back and forth relative to the respective sleeves 14, and thus restricting the hand levers The attachment of the seat back 12 of the 15 is from the reclining angle of the positioning seat back 12. Since the positioning members 18 are made of a plastic or rubber material, they will wear out over time, and the effect of damaging the positioning members 18 to position the seat back 12 needs to be improved.

The purpose of this creation is to provide a reclining chair with better positioning capability.

The reclining chair includes a seat unit, a seat back pivotally coupled to the seat unit relative to the seat unit, and a first armrest unit.

The first armrest unit includes a sleeve, a core rod, and a positioning member. The sleeve is coupled to one side of the seat unit and defines a through hole on an outer wall surface. The core rod is disposed in the sleeve, the rear end portion is pivotally connected to the seat back, and is movable back and forth relative to the sleeve, and has a plurality of insertion holes on the same side of the through hole. The positioning member is disposed in the through hole, and includes a locking portion, an insertion portion protruding from the locking portion toward the core rod, and an extension protruding outwardly from the locking portion unit. The locking portion is movably engaged between the core rod and the sleeve. The insertion portion can be separately inserted into one of the insertion holes of the core rod. The extension is limited to the through hole.

The effect of the reclining chair is that when the insertion portion of the positioning member is inserted into one of the insertion holes, the insertion portion can be interlocked with the core rod, and the extension portion is limited to the through hole, and the card design can be used to block The core rod is moved relative to the sleeve to position the seat back at a certain reclining angle, and the card insertion design does not have the problem of degrading the positioning ability due to wear, and the locking portion can be clamped to the core rod and the Between the sleeves, frictional force can also be used to prevent the core rod from moving relative to the sleeve. The invention has better positioning ability due to the double stop design.

Referring to FIG. 5, FIG. 6 and FIG. 7, a first embodiment of the present reclining chair comprises a seat unit 2, a seat back 3 pivotally connected to the rear of the seat unit 2, and a seat unit 2 disposed thereon. One first armrest unit 4 and one second armrest unit 5 on the left and right sides. For convenience of the following description, it is defined that the direction in which the user rides the first embodiment is forward, and the direction behind is rearward.

The seat unit 2 includes a carrier 21 for the user to ride, a front frame 22 pivoting the left and right sides of the carrier 21, and a rear frame pivoting the carrier 21 and the front frame 22. twenty three. The carrier 21 has two left and right side seat bars 211, and a front seat bar 212 connected to the front ends of the side seat bars 211. The front frame 22 has two front supports 221 respectively pivotally connected to the front seat bars 212 at respective central portions near the top end portions, and a front connecting member 222 connected to the bottom of the front support members 221 and capable of abutting against the ground. . The rear frame 23 has two rear supports 231 respectively pivotally connected to the side seat bars 211 and the front support members 221, and a rear connection connected to the bottom of the rear support members 231 and capable of abutting against the ground. Piece 232.

The bottom of the seat back 3 is pivotally connected to the side seat posts 211 of the seat unit 2 The rear end portion can be pivoted back and forth with respect to the seat unit 2.

The first armrest unit 4 includes a sleeve 41 disposed at a top end of one of the front support members 221 of the seat unit 2, and a core rod 42 disposed in the sleeve 41. The sleeve 41 cooperates with the core rod 42 to define a sandwich space 43. The first armrest unit 4 further includes a grip cover 44 that is disposed on the periphery of the sleeve 41 and the core rod 42 , a spring 45 that is disposed on the core rod 42 , and a spring inserted through the sleeve 41 . Positioning member 46.

The sleeve 41 has an inner wall surface 411 and an outer wall surface 412 which are hollow cylindrical and have inner and outer spaces, and a hole surface 413 extending from the inner wall surface 411 to the outer wall surface 412. The hole surface 413 defines a through hole 414 that is communicated to the inner wall surface 411 by the bottom end portion of the outer wall surface 412.

The rear end portion of the core rod 42 is pivotally connected to one of the left and right sides of the seat back 3, and can be driven to move back and forth relative to the sleeve 41 when the seat back 3 is pivoted forward and backward. The stem 42 has an outer face 421 that defines a plurality of receptacles 422. The outer face 421 cooperates with the inner wall surface 411 of the sleeve 41 to define the sandwich space 43 that communicates with the through hole 414 and the receptacles 422. The sockets 422 are located on the bottom side of the core rod 42 and are located on the same side of the through hole 414 toward the through hole 414. The jacks 422 are spaced apart from each other along the length direction of the core rod 42.

The rear end portion of the grip cover 44 and the rear end portion of the core rod 42 are pivotally connected to the same side of the seat back 3, and can be pivotally opened or covered on the core rod 42 and the sleeve. The cartridge 41 is movable forward and backward together with the core rod 42.

The front and rear ends of the spring 45 abut against the front end portion of the sleeve 41 and the inner side of the front end portion of the grip cover 44, and constantly provide a force for moving the grip cover 44 forward relative to the sleeve 41.

Referring to FIG. 7 , FIG. 8 and FIG. 9 , the positioning member 46 is disposed in the through hole 414 ( FIG. 6 ) and includes a locking portion 47 , and a locking portion 47 protrudes from the core rod 42 . The insertion portion 48 and an extension portion 49 projecting outwardly from the locking hole 47 (refer to FIG. 6).

The locking portion 47 is movably engaged between the core rod 42 and the sleeve 41 (refer to FIG. 6), and has a rear curved section 471 and a front arc opening toward the core rod 42 and connected to each other forward and backward. The segment 472 has two extended wing segments 473 extending outwardly from the top end portions of the left and right sides of the front curved segment 472, respectively. The rear curved section 471 has an obliquely curved curved surface 474 at the bottom and having an opening that is curved toward the core 42 and inclined toward the rear toward the core 42. The front curved section 472 has a horizontal arcuate face 475 at the bottom and having an opening that curves toward the mandrel 42 and extends laterally horizontally. The width D1 of each of the extending wing segments 473 is gradually widened from the back to the front, and the thickness D2 of the up and down direction is also gradually thickened from the back to the front. The extended wing segments 473 cooperate with the rear curved segment 471 and the front curved segment 472 to define a top curved surface 476 that curves toward the core 42. The top curved surface 476 is spaced apart from the oblique curved surface 474 and the horizontal curved surface 475.

The insertion portion 48 is integrally formed with the locking portion 47, and the top end portion protrudes from the top curved surface 476 toward the core rod 42 and is detachably inserted into one of the insertion holes 422 of the core rod 42. . In practice, the insertion portion 48 can also be a metal pin that is inserted into the locking portion 47. The extension 49 extends downward from the horizontal arcuate surface 475 and is confined in the through hole 414. The extending portion 49 has a right-angled triangle in a front-rear direction, and the oblique side extends obliquely from the top to the bottom. The extending portion 49 has a vertically extending straight surface portion 491 and a slope portion 492 spaced back and forth from the straight surface portion 491.

Referring to FIG. 5, the rear end portion of the second armrest unit 5 is pivotally connected to the seat back 3 and connected to the top end of the other front support member 221, and is movable back and forth with the seat back 3. Since the technique of interlocking the second armrest unit 5 with the seat back 3 is a conventional technique, it will not be described here. In practice, the second armrest unit 5 can also adopt the same design as the first armrest unit 4, thereby providing a better positioning effect.

The positioning member 46 can be opposite to the sleeve 41 in an adjusted position as shown in FIGS. 6, 10 and 11, a clamping position as shown in FIGS. 12, 13, and 14, and a position as shown in FIG. Change between one stop position.

Referring to FIG. 6 , FIG. 10 and FIG. 11 , in the adjusted position, the extending wings 473 of the locking portion 47 abut against the inner wall surface 411 of the sleeve 41 , so that the positioning member 46 does not completely disengage from the inner wall surface 411 of the sleeve 41 . The through hole 414, and since the thickness D2 of the extending wing segments 473 is gradually thicker from the back to the front, the positioning member 46 is supported by the extending wing segments 473, and the rear curved segment 471 is inclined downward. Stretched to show the state of high and low. The locking portion 47 The top curved surface 476 is also in a front high and rear low state, and is substantially angularly spaced from the outer surface 421 of the core rod 42. The insertion portion 48 of the locking portion 47 is separated from the insertion holes 422 and is not inserted into the insertion holes 422. In the adjusted position, since the core rod 42 is not affected by the positioning member 46, the core rod 42 can be freely moved back and forth relative to the sleeve 41 by the seat back 3.

Referring to FIG. 12, FIG. 13 and FIG. 14, when the user wants to ride the first embodiment and adjust the reclining angle of the seat back 3, the user can first press the extension of the positioning member 46 upward. 49. The insertion portion 48 of the positioning member 46 is abutted against the outer surface 421 of the core rod 42. Then, the seat back 3 can be pressed back slightly by the body, and the core rod 42 is driven by the seat back 3, and will move backwards. During the movement of the core rod 42 backwards, the insertion portion 48 of the positioning member 46 is inserted into the insertion hole 422 of the insertion portion 48 through the insertion portion 48, and the image is as shown in the figure. 12. The position of the card shown in Figures 13 and 14. In the latching position, the insertion portion 48 is inserted into one of the sockets 422, so that the positioning member 46 can be driven by the core rod 42 to be interlocked with the core rod 42. The top curved surface 476 of the locking portion 47 is parallel to the extending direction of the core rod 42, and the top curved surface 476 abuts against the outer surface 421 of the core rod 42. After the insertion portion 48 is inserted into one of the insertion holes 422, the user continues to press the seat back 3 backwards by the body, and the positioning member 46 can be continuously driven by the core rod 42 to move backward together until The rear curved section 471 of the positioning member 46 is moved to the sandwich space 43 to the blocking position as shown in FIG. The grip cover is moved during the movement of the core rod 42 The sleeve 44 is also moved rearward relative to the sleeve 41, and the spring 45 is compressed to cause the spring 45 to accumulate elastic force.

Referring to FIG. 15, in the blocking position, the rear curved section 471 is pinched and positioned between the core rod 42 and the sleeve 41, and the front portion of the oblique curved section 474 of the rear curved section 471 is forward. Pressing against the inner wall surface 411 of the sleeve 41, the top curved surface 476 is pressed against the outer surface 421 of the core rod 42, and the straight surface portion 491 of the extending portion 49 abuts against the sleeve The hole surface 413 of the barrel 41. Due to the frictional force between the positioning member 46 and the outer surface 421 and the inner wall surface 411, the positioning member 46 is limited by the through hole 414 and the corresponding insertion hole 422, the core rod 42 cannot be opposite to the sleeve. The cylinder 41 is moved rearward so that the seat back 3 can be restrained so that the seat back 3 cannot continue to move backward, and has the effect of positioning the seat back 3. The positioning member 46 of the first embodiment is limited by the through hole 414 and the corresponding insertion hole 422, and the problem that the positioning capability is weakened due to the increase in the number of uses is not caused, so the positioning capability is better.

Referring to Figures 6, 12 and 15, when the user gets up, the spring 45 will release the spring force, and the grip cover 44 will be brought forward along with the core rod 42 and the seat back 3. At first, since the insertion portion 48 of the positioning member 46 is also inserted into one of the insertion holes 422, the positioning member 46 is also driven by the core rod 42 to move forward, and returns to FIG. The card embedded position. When the rear curved section 471 of the positioning member 46 is disengaged from the sandwich space 43, and the locking portion 47 moves over the through hole 414, the positioning member 46 will be subjected to gravity to return to the same as shown in FIG. The adjusted position shown. this At the same time, the seat back 3 has been righted under the action of the spring 45, and can be used for the next ride and adjustment. When the user is up, the first embodiment can automatically retract the positioning member 46 and return to the design of the adjustment position, which can reduce the movement of the positioning member 46 during the movement of the core rod 42 with the core rod 42 Wear between them to extend the service life.

Referring to Figure 16, a second embodiment of the present invention is similar to the first embodiment, except that the second embodiment includes two of the first and second sides respectively disposed on the left and right sides of the seat unit 2. A handrail unit 4 (only one of them is shown in the figure due to the viewing angle relationship). The second embodiment further includes a leg rest 24 that is coupled to the carrier 21 and the first armrest units 4. The top end of the leg rest frame 24 is pivotally connected to the front end of the first armrest unit 4, and the upper center portion is pivotally connected to opposite ends of the front seat post 212 of the carrier 21, and the leg rest frame 24 is An armrest unit 4 and the front seat post 212 extend obliquely downward. Each of the first armrest units 4 omits the spring 45 (see Fig. 5).

When the user rides on the second embodiment, the lower leg can be placed on the leg rest 24, and the user's lower leg is sufficiently supported by the leg rest 24, so that the user feels comfortable. When the user is riding the second embodiment and needs to adjust and position the reclining angle of the seat back 3, the positioning member 46 of the first armrest unit 4 can be operated as described above. The second embodiment is more particularly advantageous in that, by omitting the spring 45 (see FIG. 5), the user pulls the seat back 3 back to the original position and drives each positioning member 46 back through the legrest 24, The specific description is as follows: usually when the user gets up, the calf usually goes down and collects backwards to contact the ground, and the leg rests on the leg. When the user's lower leg is pressed backward, the top end portion of the leg rest 24 will pull the first armrest unit 4 forward, and the first armrest unit 4 will drive the seat back 3 to be reset. The legrest 24 actually drives the core rod 42 (refer to FIG. 5) corresponding to each of the first armrests 4 and the corresponding grip cover 44 to move forward, and each of the core rods 42 and each gripper During the process of moving the cover 44 forward, the corresponding positioning member 46 is automatically driven back to the adjusted position. Therefore, the second embodiment also has the effect of automatically returning the file.

Since the second embodiment is provided with the first armrest unit 4 as in the first embodiment, the same effects as those of the first embodiment can be achieved, and thus the second embodiment can be repeatedly emphasized. efficacy.

In summary, the effect of the present reclining chair is that when the insertion portion 48 of the positioning member 46 is inserted into one of the insertion holes 422, it can be interlocked with the core rod 42, and the extension portion 49 is limited to the same. The hole 414 is configured to prevent the core rod 42 from moving relative to the sleeve 41 to position the seat back 3 at a certain reclining angle, and the locking portion 47 can be engaged with the core rod 42 Between the sleeves 41, frictional force can also be applied to prevent the core rod 42 from moving relative to the sleeve 41. The invention has better positioning ability due to the double stop design.

The above is only the preferred embodiment of the present invention. When it is not possible to limit the scope of the creation of the present invention, all the simple equivalent changes and modifications made according to the scope of the patent application and the content of the patent specification are still This creative patent covers the scope.

2‧‧‧ seat unit

21‧‧‧Hosting

211‧‧‧Side seatpost

212‧‧‧Front seatpost

22‧‧‧Front chair frame

221‧‧‧Front support

222‧‧‧ Front connector

23‧‧‧ Rear frame

231‧‧‧Back support

232‧‧‧ Rear connector

24‧‧‧ Leg stand

3‧‧‧Back of the chair

4‧‧‧First armrest unit

41‧‧‧Sleeve

411‧‧‧ inner wall

412‧‧‧ outer wall

413‧‧‧ hole face

414‧‧‧through holes

42‧‧‧core rod

421‧‧‧Outer face

422‧‧‧ jack

43‧‧‧Mezzanine space

44‧‧‧ grip cover

45‧‧‧ Spring

46‧‧‧ Positioning parts

47‧‧‧Cards

471‧‧‧After curved section

472‧‧‧ front curved section

473‧‧‧Extended wing section

474‧‧‧ oblique curved surface

475‧‧‧ horizontal arc curved surface

476‧‧‧ top curved surface

48‧‧‧Internal Department

49‧‧‧Extension

491‧‧‧ Straight face

492‧‧‧Bevel

5‧‧‧Second armrest unit

D1‧‧‧Width

D2‧‧‧ thickness

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a fragmentary partial cross-sectional view of a conventional reclining chair; Figure 2 is another of the conventional reclining chair Incomplete partial cross-sectional view, an enlarged view of an armrest unit; FIG. 3 is a partial cross-sectional view of the conventional reclining chair, showing a positioning member in an adjusted position; FIG. 4 is another part of the conventional reclining chair 1 is a perspective view of a first embodiment of the present reclining chair; FIG. 6 is an incomplete partial cross-sectional view of the first embodiment, the figure shows a A positioning member of the first armrest unit is located at an adjusting position, and indicates that an insertion portion of the positioning member is separated from a plurality of insertion holes of a core rod; FIG. 7 is the positioning member and the first embodiment. Figure 8 is a plan view of the positioning member of the first embodiment; Figure 9 is a side view of the positioning member of the first embodiment; Figure 10 is the first embodiment An incomplete partial cross-sectional view of the first armrest unit cut along the length direction, the positioning member is shown in the adjusted position, and one of the extending wing segments of the positioning member and the core rod and a sleeve is illustrated FIG. 11 is an incomplete partial cross-sectional view of the first armrest unit of the first embodiment, taken along a radial direction, illustrating the positioning member in the adjusted position, and illustrating the positioning member and the core The relative relationship between the rod and the sleeve; FIG. 12 is an incomplete partial cross-sectional view of the first armrest unit of the first embodiment taken along the length direction, wherein the positioning member is located at a latching position and is illustrated The insertion portion of the positioning member is inserted into one of the insertion holes of the core rod; FIG. 13 is an incomplete partial cross-sectional view of the first hand arm unit of the first embodiment taken along the length direction, in which Illustrating the relative relationship between one of the extending wing segments of the positioning member and the core rod and the sleeve; FIG. 14 is an incomplete partial section of the first handrail unit of the first embodiment taken along a radial direction. Vision FIG schematically in opposing relationship with the positioning member and the stem of the sleeve; and Figure 15 is an incomplete partial cross-sectional view of the first armrest unit of the first embodiment taken along the length direction, the figure showing that the positioning member is in a blocking position, and the positioning member is clamped on the core rod and Between the sleeves; Figure 16 is a side elevational view of a second embodiment of the recliner of the present invention.

22‧‧‧Front chair frame

221‧‧‧Front support

4‧‧‧First armrest unit

41‧‧‧Sleeve

411‧‧‧ inner wall

412‧‧‧ outer wall

413‧‧‧ hole face

414‧‧‧through holes

42‧‧‧core rod

421‧‧‧Outer face

422‧‧‧ jack

43‧‧‧Mezzanine space

44‧‧‧ grip cover

45‧‧‧ Spring

46‧‧‧ Positioning parts

47‧‧‧Cards

471‧‧‧After curved section

472‧‧‧ front curved section

474‧‧‧ oblique curved surface

476‧‧‧ top curved surface

48‧‧‧Internal Department

49‧‧‧Extension

491‧‧‧ Straight face

492‧‧‧Bevel

Claims (7)

A reclining chair comprises: a seat unit; a seat back pivotally connected to the seat unit relative to the seat unit; a first armrest unit including a sleeve connected to the side of the seat unit And defining a through hole on an outer wall surface, a core rod is disposed in the sleeve, the rear end portion is pivotally connected to the seat back, and is movable back and forth relative to the sleeve, and has a plurality of a socket on the same side of the through hole, a positioning member disposed in the through hole, and including a locking portion, an insertion portion protruding from the locking portion toward the core rod, and a locking portion An extension portion of the through hole is protruded outwardly, and the locking portion is movably engaged between the core rod and the sleeve, and the insertion portion is detachably inserted into one of the insertion holes of the core rod, The extension is limited to the through hole. The reclining chair of claim 1, wherein the positioning member is changeable relative to the sleeve between an adjusted position and a blocking position, wherein the insertion portion is disengaged from the insertion holes, the core rod The sleeve can be moved back and forth with respect to the sleeve. In the blocking position, the locking portion is engaged between the core rod and the sleeve, and the insertion portion is inserted into one of the sockets, and the core rod is inserted It is not possible to move backwards relative to the sleeve. The reclining chair according to claim 2, wherein the locking portion has a front and rear connection And opening a rear curved section of the core rod and a front curved section, the rear curved section having a slope at the bottom and the opening is curved toward the core rod and inclined by the backward and toward the core rod The arcuate curved surface has a horizontal arc curved surface at the bottom and the opening is curved toward the core rod and horizontally extending horizontally. The reclining chair of claim 3, wherein the extension extends downward from the horizontal curved surface. The reclining chair according to claim 3, wherein the locking portion further has two extending wing segments extending outwardly from the left and right sides of the front curved segment, respectively. The reclining chair according to claim 5, wherein the width of the left and right of each of the extending wing segments is gradually widened from the back to the front, and the thickness of the up and down direction is gradually thickened from the back to the front. The reclining chair of claim 5, wherein the rear curved section, the front curved section and the extended wing sections of the locking portion cooperate to define a top curved surface curved toward the core rod The insertion portion extends from the top curved surface toward the core rod.