CN2838408Y - Armrest Adjustment Structure - Google Patents

Abstract

The utility model provides a handrail adjusting structure, which comprises a handrail surface, a lower disc body is locked under the handrail surface, so that an inner space is formed between the handrail surface and the lower disc body for arranging related components of the adjusting structure, wherein, a straight-row positioning groove is respectively and symmetrically arranged at the left side and the right side inside the lower disc body, a movable block is clamped between two straight-row positioning grooves, a positioning ring is respectively arranged at the left side and the right side of the movable block, and the movable block is selectively positioned in the arc groove through the positioning ring; a circular groove is arranged at the central position of the movable block, a disc is sleeved in the circular groove, two groups of a plurality of positioning grooves are symmetrically arranged at the edge part of the disc, and positioning pins are respectively arranged at the outer ring edge of the circular groove corresponding to the two groups of positioning grooves of the disc; the center of the disc passes through the movable block and a chute of the lower disc body to be locked with an underframe, and the underframe is locked on the chair armrest bracket; therefore, the handrail achieves the double adjusting effect of moving forwards and backwards and rotating the angle.

Description

Armrest Adjustment Structure

technical field

The utility model relates to an armrest adjustment structure, in particular to an armrest with dual functions of forward and backward movement adjustment and angle rotation adjustment.

Background technique

At present, the armrests of general seats (such as office chairs) include two main structures: the armrest (generally including the armrest surface and the lower plate body) and the armrest bracket, and the armrest is arranged on the top surface of the armrest bracket, and the armrest bracket is locked on the chair. On the left and right sides of the seat; and the adjustment method of the seat armrest can be divided into horizontal adjustment and height adjustment. Among them, the horizontal adjustment is generally to adjust the front and rear position or angle of the armrest, and the height adjustment is to adjust the height of the armrest. The armrest can be adjusted according to the user's needs to achieve the best comfort; the height adjustment structure is generally arranged in the structure of the armrest bracket, and the horizontal adjustment structure is generally arranged on the armrest. As far as seat armrests are concerned, there are many different adjustment structures for various adjustment methods. However, using a simple structure has dual functions of front and rear adjustment and angle adjustment, and can be used with armrest brackets of different sizes, and can be used with It has not been seen that the armrest support is packaged or transported separately; it can be seen from the above that the current design of the horizontal adjustment structure of the armrest is not perfect, and there is still room for improvement.

Contents of the invention

The main purpose of this utility model is to further improve the above-mentioned existing armrest adjustment structure, and provide an improved armrest adjustment structure, which is to lock the lower plate under the armrest surface, so that an inner space is formed between the armrest surface and the lower plate body. The related design of the setting adjustment structure includes symmetrically setting a straight-line positioning slot composed of several equal-sized circular arc slots arranged symmetrically on the left and right sides, and a movable block is sandwiched between the two straight-line positioning slots. The left and right sides of the movable block are respectively provided with a positioning ring with elastic compression force, so that the movable block can move back and forth in the inner space of the lower plate relative to the lower plate body, so that the positioning ring is selectively positioned on an arc groove ; The movable block is provided with a circular groove at about the central position, and a disk is sleeved in the circular groove. The two groups of positioning grooves corresponding to the outer ring edge are respectively equipped with a positioning block with elastic compression force, so that the movable block can rotate relative to the central disk, and according to the positioning block, it is selected to be positioned on a positioning groove; The center of the disc passes through the movable block and a chute of the lower disc body and is locked and integrated with a bottom frame, and the bottom frame is locked on the armrest bracket of the chair; accordingly, the armrest can be moved back and forth and rotated. To achieve a double adjustment effect.

Another object of the present utility model is to provide an armrest adjustment structure, which is to lock a base frame on the armrest surface and the bottom surface of the lower plate body, and then lock it on the chair armrest bracket according to the lock holes on the two sides of the base frame. , so that the combination of the armrest surface and the lower plate can be mass-produced first, and according to the needs of customers or different chair armrest brackets, and then select the applicable chassis to assemble with the armrest surface and the lower plate, so that the assembled The whole can be packaged or carried separately from the chair armrest bracket, which is beneficial to production and sales.

The purpose of this utility model is achieved through the following technical solutions. The armrest adjustment structure provided by the utility model includes an armrest surface, a lower plate body, a chassis, a movable block, a disc, a positioning ring and related Cooperating elastic parts, positioning pins and matching elastic parts, wherein:

The armrest surface includes an upper layer of soft cushion and a lower layer of hard board, and the lower layer of hard board is provided with several ring peripheral screw holes for corresponding locking with the lower plate body;

The lower plate body is a concave shell, and several screw holes are provided on the periphery of the ring for corresponding locking with the screw holes on the armrest surface, so that an internal space is formed between the armrest surface and the lower plate body for accommodating movable blocks and discs. , locating ring, elastic piece, locating tip, and elastic piece, and the left and right sides of the lower plate shell are symmetrically arranged in a straight row of positioning grooves, and each straight row of positioning grooves is composed of several arc grooves of equal size arrangement;

The movable block is sandwiched between two straight positioning grooves on the left and right sides of the lower plate body, and a left and right through groove is arranged on it. The left and right sides of the through groove are respectively a symmetrical groove for each A positioning ring is set, and an elastic piece is embedded between the two positioning rings. The elastic piece can press the positioning ring elastically against the straight positioning groove, and a circular groove is set in the center of the movable block. A disc is set in the groove, and the ring edge of the disc is symmetrically provided with two sets of positioning grooves, and the outer ring edge of the circular groove is respectively provided with a connecting groove, and each connecting groove is provided with a positioning groove. The pins correspond to the two sets of positioning grooves of the disc, and the positioning pins are respectively matched with an elastic piece in the communicating groove, and the elastic piece can press the positioning pin elastically against a positioning groove of the disc, and the disc is based on A locking piece passes through a front and rear chute of the disk, the movable block and the lower plate body, and a central hole on the bottom frame, and is locked into one body with the bottom frame;

The bottom frame is integrated with the disc lock according to a central hole, and a locking hole is provided on each of the two sides of the bottom frame;

Accordingly, the combination of the armrest surface, the lower plate body and the movable block can rotate at an angle relative to the disc, and the combination of the armrest surface and the lower plate body can move back and forth relative to the movable block, so that the armrest surface and the movable block The combination of the lower plate and the lower plate can be rotated at an angle and moved back and forth relative to the disc, so as to achieve the adjustment of the forward and backward movement and the rotation angle.

In order to make the utility model clearer and more detailed, a preferred embodiment is hereby combined with the following diagrams, and the structure and technical features of the utility model are further described in detail.

Description of drawings

Fig. 1 is a perspective view of the use state of an embodiment of the utility model;

Fig. 2 is an exploded schematic diagram of an embodiment of the utility model;

Fig. 3 is a schematic diagram of a partial combined state of an embodiment of the utility model;

Fig. 4 is a schematic diagram of the action of the front and rear adjustment of the handrail of the utility model;

Fig. 5 is a schematic diagram of the action of adjusting the angle of the handrail of the utility model;

Fig. 6 is a schematic diagram of cooperation between the handrail and the bracket of the present invention.

Explanation of main component symbols: armrest 1; armrest bracket 2; armrest surface 10, 10a; cushion layer 11; hard board layer 12; 24; space 25; locking member 26; underframe 30, 30a; central hole 31; lock hole 32; movable block 40; through groove 41; 50; positioning groove 51; protruding card 52; positioning ring 60; elastic piece 61; positioning tip 70; elastic piece 71.

Detailed ways

Referring to Fig. 1, 2, and 3 at first, the handrail 1 of the present utility model is locked on the top surface of the handrail support 2, and it includes a handrail surface 10, a lower plate body 20, a chassis 30, and a movable block 40. , a disc 50, a positioning ring 60 and a matching elastic part 61, a positioning tip 70 and a matching elastic part 71, wherein the armrest surface 10 can be a combination of a soft cushion layer 11 and a hard board layer 12 , during production, the hard board layer 12 can be placed in a molding mold to be integrally formed with the soft cushion layer 11. The soft cushion layer 11 can be plastic, rubber or foam to provide a good tactile feeling for the hands, while the hard board layer 12 It can be an iron plate or a plastic plate, which is provided with several peripheral screw holes for corresponding locking with the lower plate body; the lower plate body 20 is a plastic concave shell, locked on the hard plate layer 12 of the armrest surface 10 , so that a rectangular flat internal space 25 is formed between the armrest surface 10 and the lower plate body 20, for setting adjustments including the movable block 40, the disc 50, the positioning ring 60, the elastic member 61, the positioning pin 70, and the elastic member 71. related components of the structure.

The shell of the lower plate 20 is provided with several ring peripheral screw holes 21 for corresponding locking with the screw holes on the armrest surface 10, and the left and right sides of the shell of the lower plate 20 are respectively symmetrically provided with a wave-shaped straight Rows of positioning grooves 22, and each straight row of positioning grooves 22 is formed by the arrangement of several equal-sized arc grooves 23; and a movable block 40 is sandwiched between the two straight row of positioning grooves 22, and the movable block 40 can be placed on the lower plate body. The internal space 25 of 20 relatively moves forward and backward; and the movable block 40 is provided with a left and right through groove 41, and the left and right sides of the through groove 41 are respectively a symmetrical groove 42 for setting a positioning ring 60 respectively. , and an elastic member 61 is embedded between the two positioning rings 60. The elastic member 61 can be a rubber ring body with elasticity and toughness, which can press the positioning ring 60 outwardly against the in-line positioning groove according to its own elasticity and toughness. On an arc groove 23 of 22, because the two positioning rings 60 all have the function of elastic compression, it can prevent the lower plate body 20 and the movable block 40 from being too loose and collide with each other to make noise during use, and also avoid the excessive tension between the two. And it is difficult to move and adjust; and the lower plate body 20 can be adjusted with respect to the front and rear displacement of the movable block 40, and the positioning ring 60 is selected to be positioned in an arc groove 23, so that the armrest surface 10 (and the lower plate body 20 are locked into One) to achieve a good front and rear adjustment function. In addition, the in-line positioning groove 22 and the left and right side walls of the housing of the lower plate body 20 can be provided with a strip-shaped gap to increase the pressure of the positioning ring 60 against the arc groove 23 of the in-line positioning groove 22 The flexibility, to avoid too tight between the two and not easy to move and adjust.

A circular groove 43 is set at the central position of the movable block 40 again, and a disk 50 is sleeved in the circular groove 43, and the ring portion of the disk 50 is symmetrically provided with two groups of positioning grooves 51 forward and backward, as As shown in the figure, each group has three positioning slots 51, including one front and rear toward the center line and one toward the left and right, so that the armrest surface 10 can be adjusted and positioned at three angles: forward, left, and right; And the outer ring edge of circular groove 43 is respectively provided with a communicating groove 44, respectively establishes a positioning pin 70 in communicating groove 44 to correspond to two groups of positioning grooves 51 of disc 50, and this positioning pin 70 is respectively arranged in communicating groove 44. Cooperate with an elastic piece 71, the elastic piece 71 can be a rubber hollow body with elastic flexibility, and the effect of the elastic piece 71 on the positioning pin 70 is the same as the effect of the elastic piece 61 on the positioning ring 60, so that the positioning pin 70 has elastic compression As a result, it can prevent the movable block 40 and the disc 50 from being too loose and collide with each other to make noise during use, and also prevent the gap between the two from being too tight and difficult to rotate and adjust; the movable block 40 can rotate at an angle relative to the disc 50 Adjust, and make this positioning tip 70 be positioned in a positioning groove 51, so that the armrest surface 10 can achieve a good angle adjustment function; in addition, two central angle grooves 45 can be symmetrically arranged on the outer ring edge of the circular groove 43 to correspond respectively There is a convex card 52 on the disk 50, and the convex card 52 can rotate within the range of the central angle groove 45, so as to limit the angular rotation range of the movable block 40 relative to the disk 50, and prevent the positioning pin from being damaged due to excessive force. Breaking away from the positioning groove 51 of the disc 50 results in a situation where the angular rotation cannot be positioned.

Again, disc 50 passes disc 50, movable block 40 and lower disc body 20 forward and backward to a chute 24 and a central hole 31 on the chassis 30 according to a locking member 26 (such as a locking screw), and is connected with The underframe 30 is locked into one body, so that the underframe 30 is close to the bottom surface of the lower plate body 20, and the upper two sides of the underframe 30 are each provided with a lock hole 32 for relocking with the chair armrest support 2 (as shown in Figure 1 ). Solidify.

Referring to Figures 4 and 5, the relative motion relationship between the armrest surface 10, the lower plate body 20, and the bottom frame 30 is illustrated: the disc 50 is locked and integrated with the bottom frame 30, and is fixed on the chair armrest support 2 Therefore, the disk 50 and the bottom frame 30 remain fixed relative to the chair armrest support 2; the movable block 40 can only rotate at an angle relative to the disk 50 and cannot move forward and backward, while the armrest surface 10 and the lower plate body 20 is locked into a linkage body, therefore, the combination of the armrest surface 10, the lower plate body 20 and the movable block 40 can be rotated at an angle relative to the disc 50 as shown in Figure 5, and the armrest surface 10 and the lower plate body 20 The combination of the two can move back and forth with respect to the movable block 40 as shown in FIG. , so that the armrest can move forward and backward and can also rotate the double adjustment effect. When adjusting the operation as shown in Figures 4 and 5, as long as the user applies force to operate the armrest surface 10, then according to the elastic cooperation between the positioning ring 60 and the several arc grooves 23 on the straight positioning groove 22, the user can move forward/ Adjust the armrest surface 10 to the best position in the rear section and locate it; and according to the cooperation of the positioning pin 70 and the positioning grooves 51 on the disc 50, the user can adjust the armrest surface 10 to the best position in left, middle and right sections. The best angle and positioning, so that the adjustment operation can be easily completed.

In addition, as far as the conventional armrests that can be adjusted back and forth or angles are generally concerned, the combination of the armrest surface and the lower plate body (commonly known as the armrest) is locked into one body through two lock holes on the lower plate body, but the two locks At the same time, the hole is also the second lock hole for the armrest and the armrest bracket of the chair to be locked into one body. Therefore, during production, the armrest (including the armrest surface and the lower plate body) must be locked together with the armrest bracket of the chair according to the corresponding two lock holes at the same time, and then Packaging or handling; however, armrests and chair armrest brackets are assembled together, which must occupy a large volume, which is not conducive to packaging or handling, and the armrests or chair armrest brackets have many different shapes and designs. Corresponding to the two lock holes, there are at least wide and narrow distances, as shown in Figure 6 underframe 30 (wide distance) and underframe 30a (narrow distance), so two lockholes are preset on the conventional handrail, The matching handrail support has been limited, which is not conducive to mass production and customer choice; the utility model is especially provided with a bottom frame 30 or 30a on the bottom surface of the handrail (including the handrail surface 10 and the lower plate body 20), so that the bottom The frame 30 or 30a is first locked and integrated with the disk 50, and then locked on the chair armrest bracket 2 according to the locking holes 32 on the two sides of the bottom frame 30 or 30a, so that the lower plate body 20 can be mass-produced first during production. production, and then as the customer chooses armrest surfaces 10, 10a of different shapes or different chair armrest brackets, the bottom frame 30 with wide or narrow spacing can be selected to be assembled with the armrest (including the armrest surface 10 or 10a and the lower plate body 20). The complete body enables the assembled complete armrest to be packaged or transported separately from the chair armrest bracket, which is beneficial to production and sales.

The above-mentioned drawings and descriptions are only embodiments of the present utility model, and are not intended to limit the embodiments of the present utility model; all those who are familiar with this technology, according to the characteristic category of the present utility model, do Other equivalent changes or modifications shall fall within the scope of the patents claimed for protection in the following application.

Claims (5)

1. An armrest adjustment structure, characterized in that it includes an armrest surface, a lower plate body, a chassis, a movable block, a disc, a positioning ring and matching elastic parts, positioning pins and matching elastic parts ,in: The armrest surface includes an upper layer of soft cushion and a lower layer of hard board, and the lower layer of hard board is provided with several peripheral screw holes for corresponding locking with the lower plate body; The lower plate body is a concave shell, and several screw holes are provided on the periphery of the ring for corresponding locking with the screw holes on the armrest surface, so that an internal space is formed between the armrest surface and the lower plate body for accommodating movable blocks and discs. , locating ring, elastic piece, locating tip, and elastic piece, and the left and right sides of the lower plate shell are symmetrically arranged in a straight row of positioning grooves, and each straight row of positioning grooves is composed of several arc grooves of equal size arrangement; The movable block is sandwiched between two straight positioning grooves on the left and right sides of the lower plate body, and a left and right through groove is arranged on it. The left and right sides of the through groove are respectively a symmetrical groove for each A positioning ring is set, and an elastic piece is embedded between the two positioning rings. The elastic piece can press the positioning ring elastically against the straight positioning groove, and a circular groove is set in the center of the movable block. A disc is set in the groove, and the ring edge of the disc is symmetrically provided with two sets of positioning grooves, and the outer ring edge of the circular groove is respectively provided with a connecting groove, and each connecting groove is provided with a positioning groove. The pins correspond to the two sets of positioning grooves of the disc, and the positioning pins are respectively matched with an elastic piece in the communicating groove, and the elastic piece can press the positioning pin elastically against a positioning groove of the disc, and the disc is based on A locking piece passes through a front and rear chute of the disk, the movable block and the lower plate body, and a central hole on the bottom frame, and is locked into one body with the bottom frame; The bottom frame is integrated with the disc lock according to a central hole, and a locking hole is provided on each of the two sides of the bottom frame; Accordingly, the combination of the armrest surface, the lower plate body and the movable block can rotate at an angle relative to the disc, and the combination of the armrest surface and the lower plate body can move back and forth relative to the movable block, so that the armrest surface and the movable block The combination of the lower plate and the lower plate can be rotated at an angle and moved back and forth relative to the disc, so as to achieve the adjustment of the forward and backward movement and the rotation angle. 2. The armrest adjustment structure according to claim 1, characterized in that said elastic member can be an elastic and flexible rubber ring. 3. The armrest adjustment structure according to claim 1, characterized in that two sets of positioning grooves are set on the ring edge of the disk, and each set can have three positioning grooves, including one front and rear to the center line and one biased to the left and right. one of each. 4. The armrest adjustment structure according to claim 3, characterized in that a strip-shaped gap is provided between the said in-line positioning groove and the left and right side walls inside the lower plate body. 5. The armrest adjustment structure according to claim 1, characterized in that it can further symmetrically set two central angular grooves on the outer ring edge of the circular groove of the movable block, and set two convex clips on the disc, and Corresponding protrusions protrude in the two central angle grooves respectively, so as to limit the angular rotation range of the movable block relative to the disc.

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