CN201164245Y

CN201164245Y - Armrest for office chair

Info

Publication number: CN201164245Y
Application number: CNU2007201224912U
Authority: CN
Inventors: 卢顺接
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-08-29
Filing date: 2007-08-29
Publication date: 2008-12-17
Anticipated expiration: 2017-08-29

Abstract

The utility model relates to an office chair armrest which comprises an upright post body (10) and an armrest shell (20). A mounting locating shaft (11) is arranged above the upright post body (10); a strip hole (21) which is favorable for the mounting locating shaft (11) to pass through is arranged on the bottom surface of the armrest shell (20); the office chair armrest also comprises a sliding locating plate (40), a sliding hook (49), a spring (48), rotary locations (50), a rotary hook (58) and a spring (59); the sliding locating plate (40) is arranged in the armrest shell (20), a wave channel (22) is arranged at the side of the armrest shell (20), and the mounting locating shaft (11) orderly passes through the strip hole (21) on the bottom surface of the armrest shell (20), a round hole (43) on the sliding locating plate (40), and through holes (51) on the rotary locations (50) from bottom to top, and is locked at the upper end through a screw (60). The office chair armrest adopts a few components to realize that the armrest shell can slide and rotate relatively to the upright post body, thus the product structure is simple, and totally satisfies related needs of users at the same time.

Description

A kind of office chair handrail

Technical field

The utility model relates to the accessory of chair, particularly relates to the handrail of office chair.

Background technology

The handrail housing of the office chair handrail of prior art is all fixedlyed connected with handrail column major part, and the handrail housing can not and rotate relative to the slip of handrail column, and the handrail that can not be regulated is difficult to satisfy user's needs like this.For this reason, industry is also progressively released the relatively handrail column office chair handrail that slides and rotates of handrail housing, more than the complex structure all still, accessory and the cost height.

Utility model content the technical problems to be solved in the utility model is to avoid above-mentioned the deficiencies in the prior art part and proposes the office chair handrail that a kind of handrail housing energy slides and rotates relative to the handrail column, and simple in structure, easy to adjust, with low cost.

The utility model solve the technical problem can be by realizing by the following technical solutions:

Design, a kind of office chair handrail of use comprise column body and handrail housing, and described column body top is provided with the installation locating shaft, and the hypomere of this installation locating shaft is a cylinder, and the cross section of epimere is triangle, quadrangle or polygon; Have on the bottom surface of described handrail housing to be beneficial to the strip hole that locating shaft passes through is installed; Also comprise slip location-plate, slip buckle and spring, and rotational positioning part, rotation buckle and spring; Described slip location-plate is placed in the handrail housing, this handrail housing avris is provided with wave channel, described slip buckle comprises cylindrical section and cambered surface boss, described slip location-plate avris forms installing hole, pack into behind the cylindrical section of the slip buckle cover upper spring in the described installing hole, and the cambered surface of the cambered surface boss of described slip buckle props up described wave channel; Have on the described slip location-plate to be beneficial to the circular hole that locating shaft passes through is installed, an end of slip location-plate forms the waveform tooth of curved distribution; Described rotational positioning part becomes stairstepping, than having the through hole that can adaptively entangle section part on the described installation locating shaft on the light filling bar, and should form the rotational positioning projection than the lower surface of light filling bar, this positioning convex places in the arc positioning groove that is opened on the slip location-plate; Be provided with installing hole in thicker section of described rotational positioning part, one end of described rotation buckle forms and the suitable wave tooth of waveform tooth of the location-plate end of sliding, the other end that rotates buckle is a cylinder, this cylinder cover upper spring is packed in the installing hole of described rotational positioning part, and the wave tooth of described rotation buckle is meshed with the waveform tooth of slip location-plate end; Described installation locating shaft passes through the strip hole of described handrail housing bottom surface, the circular hole on the slip location-plate and the through hole on the rotational positioning part from bottom to top successively, is locked by screw rod in the upper end again.

Also comprise sliding plate, have on this sliding plate and be beneficial to the circular hole that described installation locating shaft passes through that described slip location-plate is installed on the described sliding plate.

Described handrail housing two avris are equipped with wave channel, and corresponding described slip location-plate two avris all form installing hole and the slip buckle is installed.

The cross section of section is quadrangle on the described installation locating shaft, and the through hole on the corresponding described rotational positioning part is a square opening.

Described rotational positioning part top also has screw rod to screw in pad.

Compare with prior art, the technique effect of the utility model office chair handrail is: adopt less parts and realize that the handrail housing also can slide and rotate with respect to the column body, make product structure simple, with low cost, the while can be satisfied user's relevant needs fully.

Description of drawings

Fig. 1 is the main TV structure schematic diagram of the utility model office chair handrail;

Fig. 2 is the perspective exploded view of described office chair handrail;

Fig. 3 to Fig. 5 illustrates the relative column body of the handrail housing sliding process of described office chair handrail;

Fig. 6 to Fig. 8 illustrates the relative column body of the handrail housing rotation process of described office chair handrail.

The specific embodiment

Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing.

A kind of office chair handrail of the utility model, with reference to Fig. 1, Fig. 2 and extremely shown in Figure 8 in conjunction with Fig. 3, comprise column body 10 and handrail housing 20, described column body 10 tops are provided with installs locating shaft 11, this hypomere 111 that locating shaft 11 is installed is a cylinder, and the cross section of epimere 112 is a quadrangle; Have on the bottom surface of described handrail housing 20 to be beneficial to the strip hole 21 that locating shaft 11 passes through is installed; Also comprise slip location-plate 40, slip buckle 49 and spring 48, and rotational positioning part 50, rotation buckle 58 and spring 59; Described slip location-plate 40 is placed in the

handrail housing

20,20 liang of avris of this handrail housing are equipped with wave channel 22, described slip buckle 49 comprises cylindrical section 491 and cambered

surface boss

492,40 liang of avris of described slip location-plate all form installing hole 42, pack into behind the cylindrical section 491 cover upper springs 48 of slip buckle 49 in the described installing hole 42, and the cambered surface of the cambered surface boss 492 of described slip buckle 49 props up described wave channel 22; Have on the described slip location-plate 40 to be beneficial to the circular hole 43 that locating shaft 11 passes through is installed, an end of slip location-plate 40 forms the waveform tooth 44 of curved distribution; 50 one-tenth stairsteppings of described rotational positioning part, than having the square through hole 51 that can adaptively entangle section part 112 on the described installation locating shaft 11 on the light filling bar, and should form rotational positioning projection 52 than the lower surface of light filling bar, this positioning convex 52 places in the arc positioning groove 45 that is opened on the slip location-plate 40; Be provided with installing hole 53 in thicker section of described rotational positioning part 50, one end of described rotation buckle 58 forms and the suitable wave tooth 581 of waveform tooth 44 of location-plate 40 ends of sliding, the other end that rotates buckle 58 is a cylinder 582, this cylinder 582 cover upper springs 59 are packed in the installing hole 53 of described rotational positioning part 50, and the wave tooth 581 of described rotation buckle 58 is meshed with the waveform tooth 44 of slip location-plate 40 ends; Described installation locating shaft 11 passes through the strip hole 21 of described handrail housing 20 bottom surfaces, the circular hole 43 on the slip location-plate 40 and the through hole 51 on the rotational positioning part 50 from bottom to top successively, is locked by screw rod 60 and pad 70 in the upper end again.

Extremely shown in Figure 8 as Fig. 2, because slip location-plate 40 adopts metal (for example aluminum alloy material) to make, and being generally plastics, makes handrail housing 20, in order to prevent that slip location-plate 40 can damage handrail housing 20 in constantly sliding, the utility model also is provided with the sliding plate 30 that same employing plastics are made, have on this sliding plate 30 and be beneficial to the circular hole 31 that described installation locating shaft 11 passes through, described slip location-plate 40 is installed on the described sliding plate 30, and soon sliding plate 30 is combined into one with slip location-plate 40 and is placed in the handrail housing 20 again.

During assembling, make described installation locating shaft 11 pass through described handrail housing 20, sliding plate 30, slip location-plate 40 and rotational positioning part 50 from bottom to top successively, and the cambered surface that makes the cambered surface boss 492 of slip buckle 49 props up described wave channel 22, the wave tooth 581 that rotates buckle 58 is meshed with the waveform tooth 44 of slip location-plate 40 ends, shell tool 70 above rotational positioning part 50 screws in screw rod 60 again.Need to prove, the cross section of the epimere 112 of described installation locating shaft 11 is a quadrangle, hypomere 11 is a cylinder, be connected to circle in this quadrangle, described rotational positioning part 50 is suit epimere 112 parts that locating shaft 11 firmly is installed just in time, when locking screw rod 60, oppress described rotational positioning part 50, when the lower surface of rotational positioning part 50 touches on hypomere 11 cylinders end face, just no longer continue down to force tight, that is to say, screw rod 60 lockings can only be locked rotational positioning part 50 later, and can not lock handrail housing 20 and slip location-plate 40, can relative motion to guarantee them.

After the utility model assembles, the free degree of described rotational positioning part 50 all directions all is limited, and handrail housing 20 can move (because having offered strip hole 21) and can rotate relative to locating shaft 11 is installed at fore-and-aft direction, and described slip location-plate 40 also can rotate relative to locating shaft 11 is installed.Below in conjunction with Fig. 3 and Fig. 4 the situation that handrail housing 20 slides and rotates is described respectively.

Fig. 3 to Fig. 5 illustrates the sliding process of handrail housing 20 relative column bodies 10.As shown in Figure 3, slide buckle 49 this moment under the effect of spring 48, the cambered surface of its cambered surface boss 492 props up in the last trough of described wave channel 22, seat person makes and tries hard to recommend (or drawing) moving handrail housing 20, handrail housing 20 moves relative to column body 10 and slip location-plate 40, spring 48 is compressed, the cambered surface of the cambered surface boss 492 of slip buckle 49 props up the intermediate peak position (as shown in Figure 4) of described wave channel 22, continue moving hand-rail housing 20, spring 48 is upheld, and the cambered surface of the cambered surface boss 492 of slip buckle 49 props up a back trough interior (with reference to Fig. 5) of described wave channel 22.So move forward and retreat, make a person that the transmission shift feeling be arranged when slip handrail housing 20.Be worth mentioning the time, in sliding process, described slip location-plate 40 is actionless.

Fig. 6 to Fig. 8 illustrates the rotation process of handrail housing 20 relative column bodies 10.With reference to Fig. 6 to Fig. 8, seat person exerts all one's strength and rotates handrail housing 20, slip location-plate 40 also rotates in the lump, be that the waveform tooth 44 of slip location-plate 40 ends and the wave tooth 581 that rotates buckle 58 are constantly by being engaged to disengagement again to the process that meshes in this process, it simultaneously also is the constantly flexible process of spring 59, therebetween, move back and forth in the arc positioning groove 45 of the positioning convex 52 of described rotational positioning part 50 lower surfaces on slip location-plate 40, play rotational angle control effect within the specific limits.

Claims

1. an office chair handrail comprises column body (10) and handrail housing (20), it is characterized in that:

Described column body (10) top is provided with installs locating shaft (11), and this hypomere (111) that locating shaft (11) is installed is a cylinder, and the cross section of epimere part (112) is triangle, quadrangle or polygon; Have on the bottom surface of described handrail housing (20) to be beneficial to the strip hole (21) that locating shaft (11) passes through is installed;

Also comprise slip location-plate (40), slip buckle (49) and spring (48), and rotational positioning part (50), rotation buckle (58) and spring (59);

Described slip location-plate (40) is placed in the handrail housing (20), this handrail housing (20) avris is provided with wave channel (22), described slip buckle (49) comprises cylindrical section (491) and cambered surface boss (492), described slip location-plate (40) avris forms installing hole (42), pack into behind the cylindrical section (491) of slip buckle (49) the cover upper spring (48) in the described installing hole (42), and the cambered surface of the cambered surface boss (492) of described slip buckle (49) props up described wave channel (22);

Have on the described slip location-plate (40) to be beneficial to the circular hole (4 3) that locating shaft (11) passes through is installed, an end of slip location-plate (40) forms the waveform tooth (44) of curved distribution; Described rotational positioning part (50) becomes stairstepping, can adaptively entangle the through hole (51) of section part (112) on the described installation locating shaft (11) than having on the light filling bar, and should form rotational positioning projection (52) than the lower surface of light filling bar, this positioning convex (52) places in the arc positioning groove (45) that is opened on the slip location-plate (40); Be provided with installing hole (53) in thicker section of described rotational positioning part (50), one end of described rotation buckle (58) forms and the suitable wave tooth (581) of waveform tooth (44) of the location-plate that slides (40) end, the other end that rotates buckle (58) is a cylinder (582), this cylinder (582) cover upper spring (59) is packed in the installing hole (53) of described rotational positioning part (50), and the wave tooth (581) of described rotation buckle (58) is meshed with the waveform tooth (44) of slip location-plate (40) end;

Described installation locating shaft (11) passes through the strip hole (21) of described handrail housing (20) bottom surface, the circular hole (43) on the slip location-plate (40) and the through hole (51) on the rotational positioning part (50) from bottom to top successively, is locked by screw rod (60) in the upper end again.

2. office chair handrail as claimed in claim 1, it is characterized in that: also comprise sliding plate (30), have on this sliding plate (30) and be beneficial to the circular hole (31) that described installation locating shaft (11) passes through, described slip location-plate (40) is installed on the described sliding plate (30).

3. office chair handrail as claimed in claim 2 is characterized in that: described handrail housing (20) two avris are equipped with wave channel (22), and corresponding described slip location-plate (40) two avris all form installing hole (42) and slip buckle (49) is installed.

4. as each described office chair handrail of claim 1 to 3, it is characterized in that: the cross section of section part (112) is quadrangle on the described installation locating shaft (11), and the through hole (51) on the corresponding described rotational positioning part (50) is a square opening.

5. office chair handrail as claimed in claim 4 is characterized in that: described rotational positioning part (50) top also has screw rod to screw in pad (70).