CN2488392Y - An armrest lifting structure - Google Patents

Abstract

The utility model relates to furniture, in particular to a handrail lifting structure, which comprises an adjusting seat, a handrail, a clamping rod and at least two limiting parts, wherein the adjusting seat is provided with a first end and a second end, an adjusting groove is arranged in the adjusting seat, the second end can be fixedly arranged at two sides of a seat, an accommodating groove is arranged between the upper end and the lower end of the handrail, the handrail is accommodated in the adjusting seat in a sliding mode, and the technical problem of quickly adjusting the height of the handrail can be solved.

Description

An armrest lifting structure

technical field

The utility model relates to furniture, in particular to an armrest lifting structure, which utilizes the relative displacement of the locking rod and the locking plate, and when the limiting member is displaced from the first position to the second position, the limiting member can be completely disengaged from the adjustment slot, so as to achieve its purpose of quickly adjusting the height of the armrest.

Background technique

From the original wooden seat, the structure of the chair has been developed to produce an automatic pneumatic adjustment design, which provides people with a lot of convenience and comfort, and the design of the armrest of the chair also has the function of adjusting the height, as shown in the Taiwan patent in Annex 1 Announcement No. 361168 "Improvement of Handrail Lifting Structure", which mainly uses an adjustment seat 2 and a fixed seat 1 to produce the sliding of the adjustment function, wherein a top stop block 3 and a fixed seat are accommodated between the adjustment seat 2 and the fixed seat 1 1 produces a detent, and the side of the top check block 3 is pushed by a spring 6, and the top is pushed by a shrapnel 4, and a positioning piece 5 is covered on the top of the top check block 3 and the shrapnel 4 , so that the top catch block 3 is accommodated between the adjustment seat 2 and the fixed seat 1 through the locking of a screw 7, and produces elastic sliding positioning with the catch groove 12 in the chute 13 of the fixed seat 1, which can be further By changing the angle of the shrapnel 4, the top stop block 3 and the screw 7 on it are positioned on the two ends of the chute 13 on the fixed seat 1, so that the adjustment seat 2 can slide freely without being locked by the screw 7. .

Although this scheme can achieve its expected adjustment function, there are still many defects in implementation. Components are locked together, resulting in a waste of manufacturing costs, and too many components are scattered relative to each other, resulting in a reduction in structural strength, and moreover, too many components will also cause failures, resulting in inaccurate adjustment actions, because of its considerable structure. Big flaw.

Furthermore, the structural application and assembly of this scheme are too complicated, especially the assembly of the top stop block 3, the spring 6 and the shrapnel 4 is not easy, which affects the overall low assembly ability. The poor design of the system has affected the overall operation and implementation performance, so it is necessary to improve it.

In addition, Taiwan Patent Publication No. 351966 "Seat Armrest Structure (4)" in Annex 2 mainly utilizes the pivoting of the spring 22 to elastically push the block 5 to achieve the height adjustment function of the armrest. It can achieve its expected adjustment function, but there are still many defects in implementation. It is relatively fragmented in structure, and it is quite easy to come out of the adjustment seat or shift, but a spring makes the latch less reliable. The structural application and assembly of the patent case are too complicated, and the assembly process of the relative components is more difficult, which affects the overall low assembly capacity.

In view of this, in order to solve this problem, the applicant is determined to create a practical utility model based on his many years of experience in furniture design, manufacture and research and development. After many times of development and improvement, he has finally carefully designed the utility model. The lifting structure of the handrail, which is relatively displaced by the locking lever and the trigger plate, when the limiting member is displaced from the first position to the second position, the limiting member can completely disengage from the adjustment groove, so as to quickly adjust the height of the armrest operation.

Contents of the invention

The technical problem to be solved by this utility model is to provide a handrail lifting structure that overcomes the above-mentioned defects. Using the relative displacement of the catch lever and the catch plate, when the stopper is displaced from the first position to the second position, the stopper It can be completely disengaged from the adjustment slot to achieve the purpose of quickly adjusting the height of the armrest.

For this reason, the utility model includes a kind of handrail lifting structure, comprises:

An adjustment seat, which has a first end and a second end, and an adjustment slot is provided in the adjustment seat, wherein the second end can be fixed on both sides of the seat;

An armrest, with an accommodating groove between its upper and lower ends, the armrest is accommodated in the adjustment seat in a sliding manner;

A locking lever, which is fixed in the holding groove of the armrest and can slide relative to the armrest;

at least two position-limiting parts, which are fixed between the accommodating space and the adjustment groove, and perform a displacement movement between the first position and the second position;

The limiting member can be displaced from the first position to the second position, so that the limiting member can completely disengage from the adjustment groove.

One end of the armrest can be fixedly provided with an armrest pad.

Wherein the other end of the armrest is provided with a hook portion, one end of a spring is hooked here, and the other end is hooked with one end of the catch lever, and the catch lever has an elastic return force in the accommodation groove.

Wherein, two corresponding limit blocks are arranged in the accommodating groove of the armrest for stopping the locking rod.

Wherein the accommodating groove is provided with two perforations for accommodating the position-limiting parts.

Wherein the limit piece can be a steel ball.

The adjustment seat is composed of two symmetrical semi-cylinders.

Wherein the adjustment groove is in the shape of a semicircle.

Wherein the adjustment seat can be inserted into a main rod, and can generate relative specific angle pivoting.

With regard to the above, it can be concluded that the utility model has the following advantages:

1. With the lifting structure of the handrail of the present invention, when the user wants to raise the height of the handrail, he can directly pull the pull-press piece upwards, and the pull-press piece rises and at the same time drives the catch lever to work in the holding groove of the catch plate. An upward displacement movement causes the fixed armrest pad and armrest to be driven up at the same time, so when the armrest rises, it will be pulled upwards, so the hook and the hook part of the locking lever will be displaced relative to each other. The spring produces elastic relaxation, at this time, the fixing part and the limit block in the accommodation groove produce relative displacement, so that the limit part is completely displaced from the position between the perforation of the armrest and the adjustment groove to the perforation of the armrest, and is out of the adjustment groove , and the operator who can quickly adjust the height of the armrest can reach it, so the utility model is quite simple to operate and has considerable practicability.

2. The lifting structure of the handrail of the utility model utilizes the relative displacement of the catch lever and the catch plate. When the stopper is displaced from the first position to the second position, the stopper can be completely separated from the adjustment groove, thereby achieving its rapid adjustment. The operation purpose of the height of the armrest, and its structure is quite streamlined, which saves the cost of many components and assembly, and is more convenient for the process from manufacture to assembly. It is a utility model with economic benefits and industrial applicability. It is progressive, and solves the troubles and inconveniences of the known technologies in the past.

Description of drawings

In order to have a further understanding and recognition of the efficacy, characteristics and purpose of the present utility model, an embodiment is given and described in conjunction with the accompanying drawings. The accompanying drawings are as follows:

Fig. 1 is the three-dimensional exterior view of the utility model;

Fig. 2 is a three-dimensional exploded view of the utility model;

Fig. 3 is that the handrail of the present utility model is positioned at the A-A side sectional view of lowest position;

Fig. 4 is the B-B sectional view that handrail of the present utility model is positioned at lowest;

Fig. 5 is a schematic diagram (1) of the adjustment action of the handrail of the present invention;

Fig. 6 is the schematic diagram (2) of the adjustment action of the handrail of the present invention;

Fig. 7 is an action view (1) where the adjustment armrest of the present invention is located at the highest point;

Fig. 8 is an action view (2) where the adjustment armrest of the present invention is located at the highest point.

Attachment 1: Taiwan Patent No. 361168 "Improvement of Armrest Lifting Structure";

Annex 2: Taiwan Patent No. 351966 "Seat Armrest Structure (4)".

Reference numbers in attached diagrams

10 Armrest Pad 20 Armrest 21 Hook

22 Partition plate 221 Accommodating slot 23 Screw holes

24 chute 241 convex part 25 perforation

26 limit block 27 limit piece 30 card lever

31 positioning part 32 hook 33 chute

331 screw 332 nut 34 screw hole

35 perforation 36 tension and compression parts 37 fixing parts

371 perforation 372 boss 373 screw

38 spring 40 adjustment seat 41 half cylinder

411 side hole 42 half cylinder 43 slot

44 elastic device 441 elastic body 442 steel ball

45 adjustment slot 46 chute 50 main rod

51 Accommodating space 52 Perforated holes 53 Screw holes

60 armrest seat 61 hollow part 70 seat

71 screws 80 seat plates

Detailed ways

The utility model provides a handrail lifting structure, please refer to Fig. 1 and Fig. 2, the utility model mainly includes:

an armrest pad 10;

A handrail 20, which is generally a T-shaped plate body, one end of the handrail 20 is fixed on the bottom of the above-mentioned armrest pad 10, the other end is provided with a hook 21, and two partitions 22 are used to surround the two ends to form an accommodating Groove 221, this accommodating groove 221 is concavely provided with a screw hole 23 and a chute 24, and is provided with perforation 25 and two corresponding limit blocks 26 on the partition plate 22 on both sides of chute 24, the limit block 26 is located next to the side of the perforation 25, and the back of the armrest 20 should be provided with a convex portion 241 at the place of the chute 24;

A catch lever 30 has a positioning portion 31 and a hook 32 protruding oppositely at its two ends, and the positioning portion 31 can be used for inserting a pull and press piece 36 therein. The sliding slot 33, a screw hole 34 and a through hole 35, wherein the locking rod 30 can be accommodated in the above-mentioned accommodating groove 221;

A fixing part 37, which has a perforation 371, and a protruding post 372 is protruded from the back, and one end of the fixing part 37 with the perforation 371 is tapered to the other end without the perforation 371, and the locking lever 30 is accommodated in the accommodating Put the slot 221, and the through hole 371 and the screw hole 34 of the fixing part 37 are pierced by the screw 373 to pass through the chute 24. At the same time, the protruding column 372 of the fixing part 37 can be positioned at the through hole 35, and the other screw 331 is sleeved with a screw. The cap 332 passes through the chute 33 and locks it in the screw hole 23, so that the locking lever 30 is positioned in the accommodating groove 221, and the fixing part 37 is just received by the stop of the limiting block 26, and one end of a spring 38 The hook is set on the hook 32, and the other end is hooked on the hook portion 21, so that the locking lever 30 can perform an elastic displacement movement in the accommodation groove 221;

An adjustment seat 40 is made up of two symmetrical semi-cylinders 41, 42, a slot 43 is formed between the two semi-cylinders 41, 42, and a side hole 411 is provided on the top of the semi-cylinder 41, and the side hole 411 is provided for Accommodate an elastic device 44 composed of an elastic body 441 and steel balls 442, and the inner side walls of the semi-cylinder 42 are provided with several semi-arc adjustment grooves 45 for placing two stoppers 27 (i.e. two steel balls), and One side of the adjustment groove 45 is concavely provided with a sliding groove 46, wherein when the armrest 20 is inserted into the through groove 43 of the adjustment seat 40, the stopper 27 is just accommodated between the perforation 25 of the armrest 20 and the adjustment groove 45;

A main rod 50, which is a cylindrical body, forms an accommodating space 51 inside, which can be accommodated by the adjustment seat 40. The main rod 50 is provided with three positions corresponding to the relative position of the elastic device 44 on the adjustment seat 40. A hole 52, the adjustment seat 40 is fastened to the hole 52 on the main rod 50 by its elastic device 44, and the bottom of the main rod 50 is provided with two screw holes 53;

An armrest seat 60, which is in a penetrating state, so that the main rod 50 can be inserted, and the upper and lower relative movements between the armrest seat 60 and the main rod 50 can be produced, wherein a hollow part 61 is provided on one side of the armrest seat 60, so that When the armrest 20 is inserted into the through groove 43 of the adjustment seat 40, the tension and compression part 36 of the locking rod 30 can protrude outside the hollow part 61, and the upper end surface of the armrest seat 60 is directly locked on the bottom of the armrest pad 10 together with the armrest 20. The armrest pad 10, the armrest 20 and the armrest seat 60 are operated to lift simultaneously;

A seat 70, which is mainly in the structure of a U-shaped bottom cover, and the seat 70 is suitable for being sleeved on the bottom edge of the main rod 50, wherein the seat plate 80 of the seat is inserted on one side of the seat 70, and then by The screw 71 passes through the seat plate 80 from the bottom of the seat 70 and locks into the screw hole 53 at the bottom of the main rod 50, that is, the main rod 50 is locked on the seat plate 80 of the seat, and the operator can operate the armrest seat 60 makes the armrest pad 10 and the armrest 20 produce the function of lifting simultaneously.

Please continue to refer to the A-A sectional view and the B-B sectional view of the lowest state of the handrail height shown in FIG. 3 and FIG. An adjustment slot 45 at the bottom forms the lowest state of the handrail height.

Please refer to Figures 5 and 6, when the user wants to increase the height of the armrest, he can directly pull the tension and compression member 36 upward, and the tension and compression member 36 will also drive the locking lever 30 to the accommodation groove of the armrest 20 when it rises. Make an upward displacement movement in 221, so that the armrest pad 10 and the armrest 20 fixed with it are also driven up at the same time, so when the armrest 20 rises, it will be pulled with upward force, so the hook of the latch lever 30 32 and the hook portion 21 produce relative displacement to make the spring 38 produce elastic relaxation, and as shown in FIG. Displacement, and from the position between the perforation 25 of the armrest 20 and the adjustment slot 45, completely displaced to the perforation 25 of the armrest 20.

Please continue to refer to Figs. 7 and 8, when the armrest seat 60 is adjusted to the highest state in the above-mentioned action, the stopper 27 is just located in an adjustment groove 45 at the highest point in the adjustment seat 40, forming the highest state of the armrest height, such as the user When you want to adjust the armrest to the lower position or the lowest position, you only need to press the tension and compression member 36 down according to the above-mentioned reverse action, so that the tension and compression member 36 is lowered and drives the locking lever 30 in the accommodating groove 221 of the armrest 20 Make a movement of downward displacement, so that the armrest pad 10 and the armrest 20 fixed with it are also driven down at the same time, and the hook 32 of the catch lever 30 and the hook portion 21 produce relative displacement to make the spring 38 produce elastic compression. When the fixed part 37 and the stop block 26 in the accommodating groove 221 also produce relative displacement, the stop part 27 is displaced, and the position between the perforation 25 of the armrest 20 and the adjustment slot 45 is completely displaced to the position of the armrest 20. Perforation 25, can carry out the action of adjusting the height that handrail descends.

And the adjustment seat 40 of the present utility model can be between the pivot swing, and the elastic device 44 that is provided with by its side hole 411 can borrow its elastic compression to break away from the perforated hole 52 that was originally located in the middle part of the main rod 50, and when it is placed to a specific position, Then snap into another hole 52 on the upper side of the main rod, so that the armrest of the present utility model can have another feature of pivot adjustment at a specific angle. This pivot design can be adjusted according to the placement habits of the user's arms. More in line with ergonomic needs.

The above is only an embodiment of the utility model, and should not limit the scope of implementation of the utility model, that is, all equivalent changes and modifications made according to the patent scope of the utility model should belong to the utility model within the scope of patent protection.

Claims (9)

1. A handrail lifting structure, characterized in that: Including: An adjustment seat, which has a first end and a second end, and an adjustment slot is provided in the adjustment seat, wherein the second end can be fixed on both sides of the seat; An armrest, with an accommodating groove between its upper and lower ends, the armrest is accommodated in the adjustment seat in a sliding manner; A locking lever, which is fixed in the holding groove of the armrest and can slide relative to the armrest; at least two position-limiting parts, which are fixed between the accommodating space and the adjustment groove, and perform a displacement movement between the first position and the second position; The limiting member can be displaced from the first position to the second position, so that the limiting member can completely disengage from the adjustment groove. 2. The lifting structure of the armrest according to claim 1, wherein an armrest pad can be fixed at one end of the armrest. 3. The lifting structure of the armrest according to claim 1, wherein the other end of the armrest is provided with a hook portion, one end of a spring is hooked there, and the other end is hooked with one end of the catch lever, and the catch lever is placed in the accommodating groove It has an elastic recovery force. 4. The lifting structure of the armrest according to claim 1, wherein two corresponding limit blocks for stopping the locking lever are provided in the accommodating groove of the armrest. 5. The lifting structure of the handrail according to claim 1, wherein two through holes for accommodating the limiting member are provided in the accommodating groove. 6. The handrail lifting structure according to claim 1, wherein the limiting member is a steel ball. 7. The lifting structure of the handrail according to claim 1, wherein the adjustment seat is composed of two symmetrical semi-cylinders. 8. The handrail lifting structure according to claim 1, wherein the adjusting groove is in the shape of a semicircle. 9. The armrest lifting structure according to claim 1, wherein the adjustment seat can be inserted into a main rod, and can generate a relative specific angle of pivoting.

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