CN202043891U - Chair head rest with adjustable height - Google Patents

Abstract

The utility model relates to a chair head rest with adjustable height, which comprises a head rest, a front end and a rear end of the head rest can elastically and flexibly bent to form a U shape, the head rest is connected between the upper ends of a chair back and a chair back support unit, the rear end of the head rest is fixedly connected on an adjustment positioning unit firstly, the adjustment positioning unit is arranged on the chair back support unit in a sliding manner, the rear end of the head rest flexibly bent in the U shape moves up and down through up and down sliding of the adjustment positioning unit so that the height of the top end of the head rest produces preset changes, a head of a user can obtain wider, soft and comfortable rest, and a gap does not exist between the upper end of the chair back and the head rest completely so that a neck of the user can be supported and not be hung in the air.

Description

Height adjustable chair tool headrest

Technical field

The utility model relates to a kind of headrest of chair tool, not only can be along with the people's of different heights head position, carry out required leaning on outside the adjustment highly, and allow this headrest not only have the dependence face of broad, and make its with chair back upper end between keep void-free continuous the linking, make the dependence of head comfort and allow neck can unsettled nothing not lean on.

Background technology

About the known chair tool of people with headrest, its headrest can be adjusted suitable height usually, so that the dependence of user's head, and the structure that this headrest is incorporated into chair tool and adjustment as shown in Figure 1, 2, wherein the top end of this chair back 1 is provided with the sliding groove 11 that closes, and this cunning to close groove 11 be to be locked in a formed space, the chair back 1 corresponding position by one, and the book office in this cunning is closed groove 11 is installed certain hyte part 12, and make positioning component 12 be subjected to spring 13 pushing tows, lean on and the effect of shrinking back and make this positioning component 12 have elastic top; In addition, the rear side of this headrest 2 is stretched downwards and is established one and can insert the sliding portion that plugs together 21 of closing in the groove 11, and being provided with several in the portion of plugging together 21 can be for the recess 22 of positioning component 12 embeddings, and make the book office that plugs together portion 21 lower ends fix an elastic pressuring plate 3 again, and the top of this elastic pressuring plate 3 forms a stopping surface 31, and forming one gradually falls face 32 downwards by the top end of stopping surface 31, and makes stopping surface 31 places of elastic pressuring plate 3, has the effect that elasticity is drifted along.

And then, please consult shown in Fig. 3,4 again, promptly when headrest 2 insertion cunnings are closed in the groove 11, positioning component 12 in it can be oppressed the face that gradually falls 32 of elastic pressuring plate 3, make 31 times Shen of stopping surface and logical positioning component 12 after reset, so if headrest 2 upwards will be drawn and make it plug together portion 21 when withdrawing from cunning and closing groove 11, the stopping surface 31 of elastic pressuring plate 3 just in time can be subjected to stopping of positioning component 12 and stop, and then block the phenomenon that makes headrest can not take place to deviate from suddenly after making headrest 2 rise to book office.

But, above-mentioned headrest is no doubt simple and convenient in the use, but the width that should rest the head on is narrower usually, user's possibility turning left and right because of its head, and touch headrest hard framework and beyond not feeling well, and can produce sizable space between the headrest and the chair back,, when long-time the use, can cause takeing on the problem that neck is ached so allow user's neck be unsettled state.

The utility model content

The purpose of this utility model is to provide a kind of height adjustable chair tool headrest, improving the problems such as sense of discomfort of aforementioned chair tool headrest when leaning on,

For achieving the above object, the height adjustable chair tool headrest that the utility model provides is arranged between the supporter of chair back upper end and the support chair back and is the inverted U-shaped curved headrest of scratching, and make the rear end of this headrest lifting locate, the height of headrest can be adjusted, allow user's head and neck can both obtain comfortable dependence and support simultaneously.

The technical solution adopted in the utility model is: establish one and be inverted U-shaped arbitrarily elasticity and scratch the forward and backward two ends of curved headrest, be linked to respectively between the upper end of a chair back and a chair back supporter, and the rear end of order headrest is to be fixed on upper and lowerly to slide to be positioned a chair back and to hold on the adjustment positioning unit of unit upper end.

In the such scheme, this headrest comprises the central layer that a flexible is curved, and makes the central layer outside coat the pillow of a softness.

In the such scheme, this adjustment positioning unit is to comprise that one can be fixed in the slide of resting the head on rear end and being provided with two slideways, make and to wear for set slide bar on the chair back supporter, and offer narrow inner width outside at the slide rear side, and the room that communicates with two slideways, establishing two relative locating pieces again packs in this room, make the outboard end of two locating pieces can prop up slide bar, between two locating pieces, establish simultaneously one and compel to squeeze piece, and order compel to squeeze between the locating piece of piece both sides and each respective side and is provided with the face that tiltedly supports that can support mutually, and has corresponding to the rear end of compeling to squeeze piece at the room lateral port place of slide pivot solid again and can push or recess in compeling the oppression department on the crowded piece and the dowelled spanner of release portion.

The beneficial effects of the utility model are, lift adjustment by above-mentioned slide, allow and be inverted U-shaped and scratch curved headrest rear end when moving up and down, the height of headrest can be changed and enable to meet beyond the requirement that user's head leans on, and the dependence face that this headrest can bear is broad and soft again comfortable not only, and make between the upper end of the chair back and the headrest and can not produce the space, and then user's neck also can be supported and not unsettled because of the adjustment of height.

Description of drawings

Fig. 1 is the assembling decomposing schematic representation of known chair tool headrest.

Fig. 2 is the side sectional view after the assembling of known chair tool headrest.

Fig. 3 is the adjustment schematic diagram one of known chair tool headrest.

Fig. 4 is the adjustment schematic diagram two of known chair tool headrest.

Fig. 5 is a schematic perspective view of the present utility model.

Fig. 6 is a perspective exploded view one of the present utility model.

Fig. 7 is a perspective exploded view two of the present utility model.

Fig. 8 is the schematic diagram one that the utility model is adjusted positioning unit.

Fig. 9 is the schematic diagram two that the utility model is adjusted positioning unit.

Figure 10 is the locking schematic diagram that the utility model is adjusted positioning unit.

Figure 11 is the release schematic diagram that the utility model is adjusted positioning unit.

Figure 12 is the side view at the utility model headrest place.

Figure 13 is the schematic diagram after the utility model headrest is heightened.

Among the figure: 1 chair back, 10 linking parts, 2 headrests, 23 central layers, 24 pillows, 25 front ends, 26 rear ends, 4 chair back supporter, 41 slide bars, 5 adjust positioning unit, 51 slides, 511 slideways, 512 rooms, 52 locating pieces, 521 tiltedly support face, and 53 compel to squeeze piece, and 531 tiltedly support face, 54 dowelled spanners, 541 oppression departments, 542 release portions.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

See also shown in Figure 5, the utility model is to comprise that the behind of a chair back 1 is provided with the chair back supporter 4 of support, and between both upper ends of the chair back 1 and chair back supporter 4, be provided with and elastic bending be inverted U-shaped headrest 2, wherein the upper end of this chair back 1 is provided with linking part 10, the upper end of this chair back supporter 4 then is provided with two relative slide bars 41, again 2 of this headrests be comprise one can flexural buckling central layer 23, and be coated with elasticity and soft pillow 24 in the outside of this central layer 23, make the headrest 2 arbitrarily bending be inverted U-shaped state, and make its front end 25 can be fixed in linking part 10 places of the chair back 1 upper end, its rear end 26 then is connected in one to be adjusted on the positioning unit 5.

In addition, aforesaid adjustment positioner 5 as Fig. 6,7 and Fig. 8,9 shown in, be to comprise that its upper end is connected in the slide 51 at headrest 26 places, 2 rear ends, and make slide 51 be provided with the slideway 511 that aforementioned two slide bars 41 of all right one way or the other confession wear, and make the rear side of slide 51 offer a room 512 that is outer narrow inner width and communicates again with two slideways 41; Multiple, establish two locating pieces 52 that relatively can pack in the room 512 again, can the conflict slide bar 41 of corresponding position of the outboard end of this two locating piece 52, these two locating pieces, 52 opposed inside ends are provided with and are the corresponding face of tiltedly establishing 521 that tiltedly supports simultaneously, and then establish one and compel to squeeze piece 53 and be installed between two locating pieces 52, and make these both sides of compel squeezing piece 53 also be provided with the face that tiltedly supports 521 corresponding faces 531 that tiltedly support that close with the locating piece 52 of each corresponding end, and then again the room 512 lateral port place pivots of slide 51 solid can more than, the dowelled spanner 54 of following switching, also make simultaneously dowelled spanner 54 be respectively equipped with oppression department 541 and release portion 542 corresponding to the rear end of compeling crowded piece 53, allow after the dowelled spanner 54 downward switchings, as shown in figure 10, can compel to squeeze piece 53 by 541 pairs of its oppression departments and produce the effect that pushes; Or as shown in figure 11, after dowelled spanner 54 made progress switching, its oppression department 541 was recessed in urgent crowded piece 53, and makes its release portion 542 and compel to squeeze formation one space between the piece 53, and the feasible urgent piece 53 that squeezes is retired backward.

Therefore, please consult shown in Figure 12 again, this is the front side of inverted U-shaped crooked headrest 2, form a broad and soft comfortable and be available for users to beyond the dependence face that head leans on, the upwards switching (as shown in figure 13) of the dowelled spanner 54 of adjustment positioning unit 5 that can also be by headrest 2 rear end, allow the slide 51 can be on the slide bar 41 of chair back supporter 4, lower slider, the rear end lifting thereupon of feasible headrest 2, and then the top of order headrest 2 is prolonged or is contracted to decline to rising, promptly allow different height persons' head, can both obtain outside the suitable dependence, also the front end of excuse pillow 2 is linked to the end place on the chair back 1 all the time, so no matter how this headrest 2 adjusts the height of its dependence, and the chair back 1 and rest the head on and can not produce the space between 2, and then allow user's neck place not have the sensation of unsettled discomfort, also can obtain suitable partial holding up simultaneously.

Claims (3)

1. a height adjustable chair tool is rested the head on, it is characterized in that, comprise between both upper ends of a chair back and a chair back supporter, connect and establish one and can elasticity scratch the curved inverted U-shaped headrest that is, wherein the front end of this headrest is fixed in the upper end of the chair back, and the rear end of headrest is fixed in one can be on the adjustment positioning unit that slides the location on the chair back supporter.

2. height adjustable chair tool headrest according to claim 1 is characterized in that scratch curved central layer but this headrest comprises an elasticity, the central layer outside is coated with soft pillow.

3. height adjustable chair tool headrest according to claim 1, it is characterized in that, this chair back supporter is provided with two relative slide bars, this adjustment positioning unit comprises that one can be fixed in the slide of headrest rear end, slide is provided with two slideways that wear for two slide bars, and the rear side of slide offer one be outside narrow inner width, and the room that communicates with two slideways, other is provided with and packs in the room and can conflict two relative locating pieces of opposite side slide bar of its each outboard end, between two locating pieces, establish simultaneously one and compel to squeeze piece, and the medial extremity place of the both sides of urgent crowded piece and the locating piece of each respective side, be respectively equipped with and support the face that tiltedly supports that closes mutually, then at the solid location spanner of the room lateral port place of slide pivot, and this dowelled spanner is corresponding to the rear end of compeling to squeeze piece, push the oppression department that compel to squeeze piece after the downward switching of dowelled spanner, the dowelled spanner switching that makes progress retreats from the release portion that compels to squeeze on the piece.

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