TW202106206A - Segment positioning lift chair back structure - Google Patents

Abstract

The invention provides segment positioning lift chair back structure, which forms grooves on ferrules that correspondingly from assembly holder, the two grooves comprise jointly top guiding groove, tooth shape locking slot, bottom guiding section, and vertical guide slot, the seat back of the lift chair forms two holes at where corresponding to the two ferrules for coupling, the two holes provides sliding block, an engaged part extruding from flexible plate that forms at the middle of the sliding block sliding between the top guiding groove, tooth shape locking slot, bottom guiding section, and vertical guide slot. Accordingly, the lift chair has efficiency of double positioning during adjusting the height of the seat back of the lift chair, which can adjust the seat back upward and downward stably without skew, easy to disassemble and reduce volume of the lift chair for transmitting and reduce the costs thereof. Furthermore, the seat back of the lift chair can adjust the height of the chair in segmented positions easily.

Description

Lifting chair back structure with segmented positioning effect

The present invention relates to a lifting chair back structure with a segmented positioning effect, and in particular refers to a chair back that can be moved up and down more stably due to the dual positioning effect during the height adjustment process of the chair back. Adjustment, there will be no skew, and can be easily disassembled, can greatly reduce the volume, save the occupied space, more convenient for storage and transportation and reduce the cost of expenditure, and in the use of height adjustment process, can be more In order to easily and conveniently adjust the back of the chair in sections, it is more practical and functional in its overall implementation and use.

By the way, whether it is at home or office, all kinds of seats are indispensable appliances. All kinds of chairs can provide users with comfortable riding, and chairs with different shapes and designs have various supports, Different functions such as raising or lying down, the existing general chair is mainly set on the foot seat with a seating part and a back of the chair to provide support for the user's hips and back respectively, and between the foot and the seating part Equipped with a lifting adjustment mechanism to adjust the height of use for users of different ages and heights, and a tilt adjustment mechanism on the back of the chair, so that when the user is riding, the back of the chair can be adjusted according to the needs of the upper body to lean forward or backward. The tilting range allows the user’s back to remain lying against the back of the chair, so that the adjustment mechanism between the foot and the seat and the back of the chair can be adjusted according to the user’s personal status. In order to provide users with great comfort when riding the chair.

Among them, for the height adjustment structure of the back of the chair, please refer to China No. CN "1135087C "A device for adjusting the height of the backrest of the seat back of an office chair" published on January 21, 2004, including: and the seat part (6 The guide member (9, 34) rigidly connected to the support plate of) is used to support the backrest (8), the sliding member (17, 30) that can be engaged with the guide member (9, 34) and can slide along it. The U-shaped spring (18) elastically engaged with the toothed portion (11) to ensure a stable position of the sliding member relative to the guide member is characterized in that the U-shaped spring ( 18) It can slide freely along the passive side surfaces of the teeth of the tooth-shaped parts (11, 32), and is locked by the movable side after each tooth is passed, and the U-shaped spring (18) according to its elastic force and relative The predetermined position of the sliding member (17, 35) of the guide member is disengaged from the tooth so that the sliding member (17, 30) can be opposed to the guide member (9) under gravity. , 34) Slide.

In addition, please also refer to the Chinese No. CN "11677376C "Height Adjuster for the Back Part and Armrest of an Office Chair" published on September 22, 2004. The office chair has a seat part (12 ) And the support plate (10) of the seat part (12), the adjuster includes a guide member (14, 48) rigidly connected to the support plate (10); a support for supporting movable parts (18, 20) (22, 42), the support member can engage with the guide member (14, 48) and slide along the guide member (14, 48); and the elasticity that can selectively engage with the aligned teeth (31) of a tooth portion (28) The device (38), each tooth of the tooth part provides a passive flange and an active flange, in the process of lifting the movable part, the elastic device (38) slides freely along the passive flange, each When one tooth is passed at a time, the elastic device (38) can be locked on the active flange. When the movable part is in the highest position, the elastic device can be further disengaged from the tooth, thereby enabling the support The member (22, 42) can move freely along the guide member (14, 48) when the movable part is translated downward, and is characterized in that the tooth portion (28) is surfaced by an opposed tooth portion (32). Yes, the teeth of the tooth portion and the teeth of the opposing tooth portion are inclined, diametrically opposite and vertically overlapped, and the teeth (34) of the opposing tooth portion (32) are provided with active flanges and Passive flange, and arranged so that the active flange of each tooth (31) of the tooth portion (28) and the active flange of the facing tooth (34) of the opposite tooth portion (32) define a first The passive flange of each tooth (31) of the tooth portion (28) and the passive flange of the tooth (34) facing the tooth portion (32) define a second passage, the The first passage and the second passage constitute a curved mixed line passage. During the upward translation of the movable part, the teeth (31) of the tooth part (28) and the teeth (32) of the opposite tooth part (32) The roots (30, 33) of 34) respectively constitute a stable obstacle and a temporary obstacle to the movement of the elastic device (38) along the mixed line path.

However, the above-mentioned "device for adjusting the height of the backrest of the seat back of an office chair" and the "height adjuster for the back part and armrest of an office chair" can achieve the expected effect of adjusting the height of the back of the office chair. But it is also found in its actual operation and use that it has the following shortcomings:

1. Because this type of structure only has the positioning design of a single support plate structure, it is easy to cause the back of the chair to be skewed and unstable during the process of moving the chair back up and down to adjust the height of use, so that the chair back can be used. During the height adjustment process, the industry will be stuck and unsuccessful.

2. This type of structure cannot be disassembled, which makes it have a large volume, which makes it extremely occupy space in the storage and transportation process, which will increase the cost of storage and transportation, resulting in improvement in the overall structure design. Space.

3. In the process of adjusting the height of the chair back by moving up and down, this type of structure is easy to pull the chair back up quickly, and it is impossible to adjust the chair back to the required height position in sections, and it is often necessary to make the chair back up many times. , Move down to adjust, causing great inconvenience to use.

The reason is that, in view of this, the inventor upholds many years of rich experience in design, development and actual production in the related industry, and studies and improves the existing measurement methods and deficiencies to provide a lift chair back structure with segmented positioning effects. To achieve the purpose of better practical value.

The main purpose of the present invention is to provide a lifting chair back structure with a segmented positioning effect, which is mainly to make the two socket rods of the back of the chair corresponding to the assembly seat formed with two socket holes for matching socket joints, so that In the process of adjusting the height of the chair back, due to the dual positioning effect, the chair back can be moved up and down more stably for adjustment. There will be no skew, and it can be easily disassembled, which can greatly reduce the volume and save the cost. The occupied space is more convenient for warehousing and transportation and the cost is reduced. In the process of adjusting the height of use, the back of the chair can be adjusted in sections more easily and conveniently, and the overall use of the chair is increased. Those with practical functional characteristics.

The main purpose and effect of the lifting chair back structure with the segmented positioning effect of the present invention are achieved by the following specific technical means:

Its main system includes the assembly seat and the back of the chair; among them:

The assembly socket is provided with two corresponding socket rods extending upward. Both socket rods are recessed and formed with a groove part, and the two groove parts are provided with tooth-shaped latch grooves, and the tooth The top end of the tooth-shaped latch groove is provided with an opening outward, and the top end of the tooth-shaped latch groove is connected to form an inclined upper guide section, and the bottom end of the tooth-shaped latch groove is connected to form an inclined lower guide. The leading section is provided with a straight guide groove corresponding to the tooth-shaped locking groove. The top of the straight guide groove is connected to the lowest point of the upper guide section to which the tooth-shaped locking groove is connected, and the bottom end of the straight guide groove is Connect and conduct with the lowest part of the lower guide section connected with the tooth-shaped catch groove;

The back of the chair has two socket holes corresponding to the two socket rods of the assembly seat, and two socket holes corresponding to the two socket rods are provided in the two socket holes. A sliding block, a slot is formed in the middle of the sliding block, and an elastic piece is provided corresponding to the slot. The elastic piece can swing left and right in the slot. The back of the chair is sleeved and combined with two sleeve holes corresponding to the two sleeve rods of the assembly seat. At this time, the latching portion protruding from the elastic sheet of the sliding block can be moved by the tooth-shaped latching groove The opening is accommodated to enter, so that the catch portion slides along the upper guide section to the straight guide groove, and then slides along the lower guide section in the straight guide groove to the tooth-shaped catch In the groove, slide along the tooth-shaped catch groove to the upper guide section, and use this circular movement to adjust the use height of the back of the chair.

The present invention is a preferred embodiment of the lift chair back structure with segmented positioning effect, wherein the teeth in the two tooth-shaped latching grooves of the set of sockets are arranged in a relatively high outer and lower oblique tooth shape. In addition, the upper guide section and the lower guide section correspond to each of the teeth, and each of the teeth is also inclined with an outer height and a lower inner position, so that the straight guide groove is correspondingly arranged at the inner end of the tooth-shaped latch groove.

In order to make the technical content, the purpose of the invention and the effects achieved by the present invention more complete and clear, the following detailed descriptions are given, and please refer to the disclosed drawings and figure numbers together:

First of all, please refer to the first diagram of the three-dimensional exploded structure diagram of the present invention, the second diagram of the three-dimensional combined structure diagram of the present invention, and the third diagram of the combined cross-sectional structure diagram of the present invention. 1) and the back of the chair (2); among them:

The assembly socket (1) is designed to be combined with the cushion part assembly, and two corresponding socket rods (11) extend upward on the assembly socket (1), and both socket rods (11) are The recess is formed with a groove portion (12), two of the groove portions (12) are provided with tooth-shaped latching grooves (13), and the teeth in the two tooth-shaped latching grooves (13) are relatively outward High and low oblique teeth are arranged, the top of the tooth-shaped latching groove (13) is provided with an opening (131) outwards, and the top of the tooth-shaped latching groove (13) is connected to form an outer high and low inclination The upper guide section (132) is connected to the bottom end of the tooth-shaped latch groove (13) to form an inclined lower guide section (133) with outer height and inner low, corresponding to the tooth-shaped latch groove (13) The inner end is provided with a straight guide groove (14). The top of the straight guide groove (14) is connected to the lowest point of the upper guide section (132) connected with the tooth-shaped catch groove (13), and the straight guide The bottom end of the groove (14) is connected to the lowest point of the lower guide section (133) connected with the tooth-shaped catch groove (13).

The back (2) of the chair, corresponding to the two sockets (1), is formed with two sockets (21) corresponding to the sockets (11), and there are two sockets (21) corresponding to the two sockets (21). The groove part (12) of the socket rod (11) is provided with a sliding block (22), and a slot (221) is formed in the middle of the sliding block (22), corresponding to the slot (221) with elasticity A piece (222), the elastic piece (222) can swing left and right in the slot (221), and a latching portion (223) is protrudingly formed on the elastic piece (222).

In this way, the back of the chair (2) can be combined with the two socket holes (21) corresponding to the two socket rods (11) of the assembly seat (1). At this time, the socket The sliding block (22) provided in the hole (21) corresponds to the groove portion (12) of the socket rod (11), and the elastic piece (222) of the sliding block (22) protrudes The detent portion (223) can be accommodated and entered by the opening (131) of the tooth-shaped detent groove (13), so that the detent portion (223) can slide along the upper guide section (132) Into the straight guide groove (14), and then slide in the straight guide groove (14) along the lower guide section (133) into the tooth-shaped catch groove (13).

As a result of the present invention in operation and use, since the latch portion (223) is accommodated and entered through the opening (131), the latch portion (223) will be located at the toothed latch groove (13) connected to the At the upper guiding section (132), the user can push the back of the chair (2) downwards, so that the latching portion (223) follows the shape of the upper guiding section (132) that is high and low inside. Move to the lower part [please refer to the figure 4 of the back of the present invention to adjust the height of the back of the present invention], the latch (223) will drive the elastic sheet (222) to the slot (221) ) Inwardly connected to the lowest part of the upper guide section (132) and conducted in the direction of the straight guide groove (14), as the back (2) of the chair is pushed down, the latch (223) is The straight guide groove (14) slides down to the bottom end. At this time, the latching portion (223) loses the limit of the latching portion (223), and the elastic piece (222) will drive the latching portion ( 223) Reset so that the latching portion (223) is located below the lower guide section (133) connected to the toothed latching groove (13) [please refer to the fifth figure and adjust the back of the present invention to The lowest point cross-sectional structure diagram is shown], that is, the chair back (2) can be adjusted to the lowest use height position [please refer to the sixth figure of the present invention as shown in the bottom three-dimensional structure diagram of the chair back adjusted to the lowest point].

And when the chair back (2) is pulled up again, the catch (223) moves to the height of the lower guide section (133) as the chair back (2) moves up, and follows During the movement of the latching portion (223) to the height of the lower guide section (133), the latching portion (223) will drive the elastic piece (222) to swing out of the slot (221), When the detent portion (223) passes the highest point of the lower guide section (133), the elastic sheet (222) will drive the detent portion (223) to reset, allowing the detent portion (223) to move into the In the tooth-shaped latching groove (13) [please refer to the seventh figure of the chair back up-adjustment of the present invention using the height movement diagram (1)], as the back of the chair (2) is pulled up, the latch The part (223) will move in the tooth-shaped latching groove (13) along each tooth part arranged in an oblique tooth-like arrangement of each outer height and inner lower [please also refer to the eighth figure for the upward adjustment of the back of the present invention Using the height action diagram (2)], when the catch part (223) passes the highest point of each tooth part, the elastic sheet (222) will drive the catch part (223) to reset, so as to reset the catch part (223). The catch part (223) moves into the lowermost part of the adjacent tooth above the tooth part to catch the position, so that the catch part (223) cannot move down, so that the back (2) of the chair can be kept at the required height Position, after the detent portion (223) moves to the highest point of the tooth at the highest position of the tooth-shaped detent groove (13) [please also refer to the ninth figure. The back of the present invention turns from a high point to a lower Point adjustment action diagram (shown in (1)], as the elastic sheet (222) drives the detent portion (223) to reset, the detent portion (223) will move to the tooth-shaped detent groove (13). Connect the upper guide section (132) [please refer to the figure tenth figure of the back of the present invention from the high point to the low point of the adjustment action diagram (2)], so that the back of the chair (2) ) Push down to adjust the usage height.

Based on the above, the description of the use and implementation of the present invention shows that, compared with the prior art, the present invention mainly has the following advantages:

1. In the present invention, two corresponding socket rods are extended upward on the assembly seat, and two socket rods are formed on the back of the chair with two socket holes for matching sockets, so that it can be adjusted and used on the back of the chair. During the height process, due to the dual positioning effect, the chair back can be moved up and down more stably for adjustment without skew.

2. The present invention can facilitate the disassembly of the back of the chair and the assembly seat, so that the volume can be greatly reduced during the storage and transportation process, and the occupied space can be relatively saved, so that the storage and transportation can be more convenient, and the storage and transportation can be reduced. Cost expenditures spent.

3. Since the present invention can facilitate the disassembly and separation of the back of the chair and the assembly base, it can be purchased and assembled by consumers to increase the convenience of use.

4. The seat back and the assembly base of the present invention can be easily disassembled and separated, so that when a failure occurs, it can be easily disassembled and repaired.

5. In the process of adjusting the height of the chair back by moving up and down, the present invention can be pulled up section by section to adjust the height, and the existing structure will not be pulled to the end at one time. It is easy and convenient to make the chair back section by section. Adjust to adjust the back of the chair to the best use height position, and to increase the practical function characteristics in its overall implementation.

However, the foregoing embodiments or drawings do not limit the product structure or usage mode of the present invention, and any appropriate changes or modifications by persons with ordinary knowledge in the relevant technical field should be regarded as not departing from the patent scope of the present invention.

In summary, the embodiments of the present invention can indeed achieve the expected use effect, and the specific structure disclosed by it has not been seen in similar products, nor has it been disclosed before the application, since it has fully complied with the provisions of the patent law. In accordance with the requirements, Yan filed an application for a patent for invention in accordance with the law, and asked for favors for examination, and granted a patent for approval, which would be more convenient.

1: Assemble the base

11: socket rod

12: Groove

13: Toothed detent

131: Opening

132: Upper Guidance Section

133: Lower Guiding Segment

14: Straight guide groove

2: the back of the chair

21: Socket hole

22: Sliding block

221: Slotting

222: elastic sheet

223: Card Control Department

Figure 1: A schematic diagram of the three-dimensional exploded structure of the present invention

Figure 2: Schematic diagram of the three-dimensional combined structure of the present invention

Figure 3: A schematic view of the combined cross-sectional structure of the present invention

The fourth figure: the schematic diagram of the back of the present invention for adjusting the height of the chair back down

Figure 5: A schematic diagram of the cross-sectional structure of the chair back adjusted to the lowest point of the present invention

Figure 6: A schematic diagram of the three-dimensional structure of the chair back adjusted to the lowest point of the present invention

Figure 7: Schematic diagram of the height adjustment of the back of the chair of the present invention (1)

Figure 8: Schematic diagram of the height adjustment of the back of the chair of the present invention (2)

Figure 9: Schematic diagram of the adjustment action of the back of the chair of the present invention from a high point to a low point (1)

Figure 10: Schematic diagram of the adjustment action of the back of the chair of the present invention from a high point to a low point (2)

1: Assemble the base

11: socket rod

12: Groove

13: Toothed detent

14: Straight guide groove

2: the back of the chair

21: Socket hole

22: Sliding block

221: Slotting

222: elastic sheet

223: Card Control Department

Claims (2)

A lifting chair back structure with a segmented positioning effect, which mainly includes an assembly seat and a chair back; among them: The assembly socket is provided with two corresponding socket rods extending upward. Both socket rods are recessed and formed with a groove part, and the two groove parts are provided with tooth-shaped latch grooves, and the tooth The top end of the tooth-shaped latch groove is provided with an opening outward, and the top end of the tooth-shaped latch groove is connected to form an inclined upper guide section, and the bottom end of the tooth-shaped latch groove is connected to form an inclined lower guide. The leading section is provided with a straight guide groove corresponding to the tooth-shaped locking groove. The top of the straight guide groove is connected to the lowest point of the upper guide section to which the tooth-shaped locking groove is connected, and the bottom end of the straight guide groove is Connect and conduct with the lowest part of the lower guide section connected with the tooth-shaped catch groove; The back of the chair has two socket holes corresponding to the two socket rods of the assembly seat, and two socket holes corresponding to the two socket rods are provided in the two socket holes. A sliding block, a slot is formed in the middle of the sliding block, and an elastic piece is provided corresponding to the slot. The elastic piece can swing left and right in the slot. The back of the chair is sleeved and combined with two sleeve holes corresponding to the two sleeve rods of the assembly seat. At this time, the latching portion protruding from the elastic sheet of the sliding block can be moved by the tooth-shaped latching groove The opening is accommodated to enter, so that the catch portion slides along the upper guide section to the straight guide groove, and then slides along the lower guide section in the straight guide groove to the tooth-shaped catch In the groove, slide along the tooth-shaped catch groove to the upper guide section, and use this circular movement to adjust the use height of the back of the chair. The chair lift structure with segmented positioning effect according to claim 1, wherein the teeth in the two tooth-shaped latching grooves of the set of sockets are arranged in a relatively high outer and inner low oblique tooth shape, and Both the upper guide section and the lower guide section correspond to each of the teeth and the teeth are also inclined outwardly high and low inside, so that the straight guide groove is correspondingly arranged at the inner end of the tooth-shaped catch groove.

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