CN2365975Y

CN2365975Y - Arm-rest table of chair

Info

Publication number: CN2365975Y
Application number: CN 99226024
Authority: CN
Inventors: 许传福
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-03-19
Filing date: 1999-03-19
Publication date: 2000-03-01
Anticipated expiration: 2009-03-19

Abstract

The utility model relates to a chair writing board, which belongs to writing boards. The front end of an arm rest of a chair is provided with a bearing seat used for assembling with a writing board. The writing board is composed of a board body and a connecting seat, and a shaft hole used for sheathing with a shaft sleeve is arranged on the connecting seat. A bolt rod locked on the back segment of a cylinder of a rotating shaft matches with a setting and positioning piece slideway in the connecting seat, and the writing board can rotated and limit, a pivoted piece on the front segment of the rotating shaft turns over under the condition of the limitation of a bearing seat notch, and thus, the writing board can turn over, unfold, stand and support on the position at the front end of the chair. When the utility model is not used, the writing board can be turned over and folded at one side of the arm rest.

Description

Arm-rest table of chair

The utility model relates to a kind of board, particularly a kind of Arm-rest table of chair.

The design of traditional Chair structure mainly is providing the user to take to be the function demand, again because of considering that both hands dispose the problem of putting, be install additional in the chair both sides handrail for arm by putting, enable the riding comfort that provides preferable.

Only, design with this type of chair, because of only focusing on function and the comfortableness design of taking, under general user mode, can't cause puzzlement, but for the chair that uses on Conference Room or classroom, might can't every chair collocation display a desk because of spatial constraints, but in meeting or the process paid attention to the class, have the needs of taking notes again, just fail to provide appropriate device because of chair and put for notebook or paper this moment, cause the quite inconvenience of user on writing, invisible will influence its practicality.

For this reason, be to have the dealer to design the special-purpose Chair structure of additional board, be used in chair one side handrail front end rank and establish a flat board, make flat board extend to chair front space position, using the user can be flat on notebook or paper on this flat board, to be convenient to the carrying out of action of writing, the demand of writing that effective solution may meet with.

So, see it with the existing chair of setting up board, no matter its board system establishes with the one-body molded or extra lock of handrail, the structural relation kenel of its board and chair is fixing basically, in other words, be that its board is fixedly to be in chair front space position, under this situation, with hindering standing up or sitting down of user, cause suitable inconvenience, have a strong impact on its practical value, though having the dealer to utilize pivot button accessory that board is done movable group afterwards establishes, give the board usefulness of suitably overturning, before the user stands up or sits down, can be about to earlier board turn over from the facility design, but under normal circumstances, these boards still are in the chair forward position, what cause the inconvenience of discrepancy, and more become a kind of burden in the time need not writing, and real difficulty is called perfect design.

Because have the Arm-rest table of chair structural design now and fail to meet fully user demand, main purpose of the present utility model is to provide a kind of visual user demand to be opened up board structure upright or that fold, make outside, more can have the convenience that does not take up space concurrently in response to the functional requirement that writes.

Another purpose of the present utility model ties up to can in producing effects by the exhibition of its board, it must be used as general chair when usual, the upright board of the exhibition of can overturning fast supplies notebook or paper to put when writing demand and meet with, the discrepancy action that the complete unlikely user of influence stands up or sits down.

Another purpose of the present utility model ties up to the cooperation of buing or get by illegal means in its structure of mat, and the spy can look user's writing style and select board is installed in the handrail front end of any side of chair, enables to meet user's writing style.

A purpose more of the present utility model ties up in the structural design by board, makes it must be when emergency escape, utilize the standing up power of human body and take advantage of a situation board upset exhibition is received, and board and Chair structure are dampened or damaged to the unlikely human body that causes.

For achieving the above object, the utility model is on structural design, mainly be to establish a bearing in the armrests front end to establish for writing the daughter board group, the axis body that utilizes board rank cover for seat to establish is given board rotation usefulness, and cooperate the bearing short slot must implement to overturn usefulness with axis body, visual according to this user demand is opened up upright or is folded, and becomes a kind of practicality and the chair attachment device that do not take up space.

Its scheme is: the utility model is a kind of Arm-rest table of chair, be included in the armrests front end and establish a bearing and board, be characterized in: this bearing rear end is established one and is coated groove, put the coating groove with keyhole perforation, bearing is passed the screw lock knot of keyhole and handrail through bolt, then form a pivot seat and a short slot and connect the pivot seat at the bearing leading portion, establish for the rotating shaft pivot roped party of board with a screw; This board system is dull and stereotyped, establish a recessed groove in the one side and establish a rank seat with lock, one rotating shaft is nested with in the axis hole of this rank seat, again with the spacing rotating shaft of a spacer involution, a screw is established in this rotating shaft on back segment, cooperate the keyhole of spacer correspondence to be locked knot with a bolt, finishing rotating shaft establishes with the group of rank seat, on the rotating shaft back segment, be provided with keyhole must cooperate spacer for a tightening latch chute in addition again, cooperate with rotating shaft leading portion pivot sheet and the perforation that provides, the pivot sheet of rotating shaft is inserted in the short slot of bearing leading portion pivot seat and and locked knot, make rotating shaft be limited in bearing, and the ora terminalis of the nearly short slot of this rotating shaft leading portion pivot sheet is more made arc angle and handled by the pivot group with another bolt.The spacer rear side is set up a plastic-steel liner and a capping.The keyhole that this rotating shaft rearward end is established for the tightening latch lock is two side positions that are divided into respect to leading portion pivot sheet, borrows this tightening latch to be locked on different keyholes position, cooperates the rotating shaft commutation by putting, and can give the rotation usefulness of board different directions.In view of the above, utilize the axle of this rotating shaft and board rank seat to establish relation, the pivot group relation that cooperates rotating shaft and bearing, the spy can give board and possess the rotation and the two kinds of different effectivenesses of a stroke of overturning, make armrests front end position is established in board upset exhibition stand, with in response to the demand of writing, the cycle of then board can being overturn when not using collapses in handrail one side, becomes a kind of practicality and the chair attachment device that do not take up space.

The utility model compared with prior art, its advantage: the utility model is via the composition design of structure, outside the usefulness that the additional board of chair is provided in response to the demand of writing, further giving its visual user demand carries out Zhan Lihuo and folds, the chair attachment device that makes it to become a kind of practicality and do not take up space, special can solve inconvenience and the disappearance that known fixed formula structure is derived, generally speaking, the excellence of really can yet be regarded as, outstanding innovative design.

The utility model can also obtain further instruction from the following drawings and embodiment:

The drawing explanation

Fig. 1 is a STRUCTURE DECOMPOSITION schematic diagram of the present utility model.

Structural relation schematic diagram when Fig. 2 is the rotation of the utility model board.

Structural relation schematic diagram when Fig. 3 is the upset of the utility model board.

Fig. 4 is that the exhibition of the utility model board is brought drill to an end and made schematic diagram.

10-handrail 11-screw

20-bearing 21-coats groove

22-keyhole 23-pivot seat

24-short slot 25-screw

30-board 31-recessed groove

40-rank seat 41-axis hole

50-spacer 51-keyhole

52-chute 53-liner

54-capping 60-rotating shaft

61-cylinder 62-pivot sheet

63-screw 64-keyhole

65,66-keyhole 67-tightening latch

71,72,73-bolt

Below by accompanying drawing embodiment of the present utility model is described in detail:

The utility model is a kind of Arm-rest table of chair, sees also shown in Figure 1ly, and it mainly is to establish a bearing 20 in armrests 10 front end side chains, and this bearing 20 of mat is established for 30 groups for boards again, wherein:

These bearing 20 rear ends are to establish the recessed coating groove 21 of an arc, and connect to put with a keyhole 22 by leading edge and coat groove 21, use bearing 20 to be covered and place handrail 10 cephalolateral margins, cooperate handrail 10 default screws 11 and be able to a bolt 71 and pass keyhole 22 lock knots, finishing bearing 20 establishes with the group of handrail 10, then form a pivot seat 23 and a short slot 24 and connect pivot seats 23 at bearing 20 leading portions, use and to establish for the rotating shaft 60 pivot roped parties of board 30 with a screw 25;

This board 30 is the flat board based on a suitable shape, be provided with a recessed groove 31 in the one side position and establish a rank seat 40 with lock, this rank seat 40 is provided with an axis hole 41 in suitable position and is nested with for a rotating shaft 60, again with the spacing rotating shaft 60 of a spacer 50 involutions, this rotating shaft 60 is established a screw 63 in center, back segment cylinder 61 end, cooperate the keyhole 51 of spacer 50 correspondences and plastic-steel liner 53 that rear side covers and capping 54 and be able to a bolt 73 and locked knot, finishing rotating shaft 60 establishes with the group of rank seat 40, two side positions with respect to leading portion pivot sheet 62 set up two keyholes 65 again separately in rotating shaft 60 back segment cylinders 61 ends in addition, 66, use in a keyhole 65 lock one tightening latches 67 wherein and must cooperate spacer 50 default arc chutes 52 to give rotating shaft 60 and make rotation and spacing usefulness with respect to rank seat 40, and perforation 64 cooperations that utilize the pivot sheet 62 of rotating shaft 60 leading portions and provide, the pivot sheet 62 of rotating shaft 60 must be inserted in the short slot 24 of bearing 20 leading portion pivot seats 23 and and be locked knot with another bolt 72, make rotating shaft 60 be limited in bearing 20 by the pivot group, and this ora terminalis of turning 60 leading portion pivot sheets, 62 nearly short slots 24 is more made arc angle and is handled, make 60 pivotal action that must do with respect to bearing 20 of turning, finish the assembly of board 30 and handrail 10 according to this;

In view of the above, utilize this rotating shaft 60 and the axle of board 30 rank seats 40 to establish relation, cooperate the rotating shaft 60 and the pivot group of bearing 20 to concern, the spy can give board 30 tools and join the rotation and the two kinds of different effectivenesses of a stroke of overturning, make armrests 10 front end positions are established in board 30 upset exhibition stands, with in response to the demand of writing, then board 30 upset cycles can be collapsed in handrail 10 1 sides when not using, become a kind of practicality and the chair attachment device that do not take up space.

Inferior please continue to cooperate consult Fig. 2,3 structural relation schematic diagram and the operation chart of Fig. 4, via on take off structure and form, because of these rotating shaft 60 back segment cylinders 61 are established relation with the axle of rank seat 40, be with can be with board 30 by up or be rotated down, and the conduct of its rotation and amplitude that to be tightening latch 67 that mat rotating shaft 60 rear ends lock is established cooperate with the chute 52 of spacer 50 is in addition spacing, and look the demand that board 30 is mounted on the different side handrails of chair, only need change keyhole 65 or 66 positions that these tightening latch 67 locks are established, can be in response to the different rotary direction of homonymy not, handle by rotating shaft 60 and pivot group relation and 62 times arc angles of pivot sheet thereof of bearing 20 again, make it be operated board 30 and carry out rotary movement, reach usefulness according to this, when the user writes demand in experience, be earlier board 30 is up rotated after, again chair front space position is stood in its upset exhibition, the storing of notebook or paper is provided, and when not using, then board 30 up can be turn to handrail 10 1 rear flank, again it is rotated down and collapses in the chair side, make the turnover space of its unlikely obstruction chair, outside utility function, more can have the convenience that does not take up space concurrently according to this in response to the demand of writing.

And in the aforesaid structural design, wherein this plastic-steel liner 53 and capping 54 are non-essential member, the main purpose that this plastic-steel liner 53 is provided with is the suitable elastic-friction resistance when being to give these rotating shaft 60 tightening latches 67 rotations, use and to keep rotating shaft 60 and the turn relation location of holding in the mouth seat 40, to prevent board 30 any turns, in addition by these rotating shaft 60 rear ends two keyholes 65,66 setting, make it when installing in response to the not homonymy of board 30, only need to establish to another keyhole with rotating shaft 60 commutations and with tightening latch 67 change locks, promptly get according to this and meet its not operational motion of homonymy installation, make it and can select suitable installation site according to user's writing style fully, and then user demand that can be realistic.

The thing that other is worth mentioning, pivoted exhibition receipts pattern and respective outer side edges because of the utility model board, when meet with emergency situations must emergency escape and when having no time to operate the folding of board, can by human body stand up strength slightly with board forward pivot moving and take advantage of a situation on turn receipts, reach the accessible enforcement of standing up from chair fast, and reason is not collided board and is caused human body to dampen, and more can not damage the structure of board or chair, and suitable security protection usefulness is provided.

Claims

1, a kind of Arm-rest table of chair is included in the armrests front end and establishes a bearing and board, it is characterized in that:

This bearing rear end is established one and is coated groove, connects with a keyhole and puts the coating groove, and bearing is passed the screw lock knot of keyhole and handrail through bolt, then forms a pivot seat and a short slot and connects the pivot seat with a screw at the bearing leading portion, supplies the rotating shaft pivot roped party of board to establish;

This board is a flat board, establish a recessed groove in the one side and establish a rank seat with lock, one rotating shaft is nested with in the axis hole of this rank seat, again with the spacing rotating shaft of a spacer involution, a screw is established in this rotating shaft on back segment, cooperate the keyhole of spacer correspondence to be locked knot with a bolt, finishing rotating shaft establishes with the group of rank seat, on the rotating shaft back segment, be provided with keyhole must cooperate spacer for a tightening latch chute in addition again, cooperate with rotating shaft leading portion pivot sheet and the perforation that provides, the pivot sheet of rotating shaft is inserted in the short slot of bearing leading portion pivot seat and and locked knot, make rotating shaft be limited in bearing, and the ora terminalis of the nearly short slot of this rotating shaft leading portion pivot sheet is more made arc angle and handled by the pivot group with another bolt.

2, Arm-rest table of chair according to claim 1 is characterized in that: the spacer rear side is set up a plastic-steel liner and a capping.

3, Arm-rest table of chair according to claim 1 is characterized in that: the keyhole that this rotating shaft rearward end is established for the tightening latch lock is two side positions that are divided into respect to leading portion pivot sheet.