CN1129384C

CN1129384C - Locator for turning over row chair

Info

Publication number: CN1129384C
Application number: CN00116466.XA
Authority: CN
Inventors: 丰国勋
Original assignee: Individual
Current assignee: Zhejiang Dafeng Industry Co Ltd
Priority date: 2000-06-10
Filing date: 2000-06-10
Publication date: 2003-12-03
Anticipated expiration: 2020-06-10
Also published as: CN1273801A; US20010054835A1

Abstract

The present invention relates to a turnover positioning device for a rowed chair, which comprises a plurality of chair seats (1) and a base (3) of the chair seats, and the chair seats are arranged in the same row and are connected in series into a whole. The middle part of at least one rotating foot (2) is fixed to a rotating shaft (7) on the front upper part in the base, the upper end of the rotating foot is fixed with the chair seats (1), and the lower end is provided with a step. The back lower part in the base is provided with another rotating shaft (5), and a supporting arm (6) is fixed on the rotating shaft (5) corresponding to the position of the rotating foot (2). When the chair seats are in the state of turning up and positioning, the free end of the supporting arm (6) is right butted against the step on the lower end of the rotating foot (2). Only small force is needed when the chair seats are turned up and laid down, and the whole row of chair seats are linked together, and thus, the work efficiency is increased.

Description

A kind of locator for turning over row chair

(1) technical field

The present invention relates to a kind of locator for turning over that is used for whole row's seat.

(2) background technology

Turn over and put formula row chair and be mainly used on the movable stand that in occasions such as gymnasium, conference hall, uses, for saving the space, movable stand general equal shrinkage layer poststack when idle is covered up, row's chair that be installed on it this moment must all fall, and when using, after movable stand launched, row's chair also must all turn over to be put and locatees.Seat on the present movable stand is single or two hoisting types manually turn over the mode of putting, its structure is: the chair pin place at seat is provided with a bearing pin, this bearing pin is positioned at the arc chute of seat support, referring to Fig. 7, therefore when digging seat, need choose and make every effort to overcome whole gravity of clothes seat, the chair pin bearing pin of seat is locked until the following recess that falls into the chute lower end from the downslide of the upper end of arc chute, when falling seat, need personnel selection earlier make every effort to overcome the clothes seat all deadweight the following recess of chair pin bearing pin from the arc chute lower end pulled up, and then holding up seat to make its chair pin bearing pin slide to the upper end from the arc chute lower end and falling; Yet have hundreds of that several thousand seats are arranged at most on the general activity grandstand at least, therefore this mode is not only to require great effort but also time-consuming inefficiency really; Adopt the chute latch-up structure to be difficult to eliminate its free gap in addition, thereby the seat location is firm inadequately, rocks easily.

(3) summary of the invention

Purpose of the present invention provides a kind of moving locator for turning over row chair of putting that turns over of Volleyball Association of putting in order with regard to being at above-mentioned prior art present situation.

Another object of the present invention is to provide a kind of seat location firm locator for turning over row chair.

A further object of the present invention is to provide a kind of all locator for turning over row chair of deadweight of seat that need not to overcome when falling.

A further object of the present invention is to provide a kind of all locator for turning over row chair of deadweight of seat that need not to overcome when digging.

The object of the present invention is achieved like this: a kind of locator for turning over row chair, comprise seat and base thereof that several are provided with row, each seat series connection one, and be provided with one at least and change pin, the middle part of described commentaries on classics pin is fixed in the rotating shaft that is positioned at the base front upper part, the upper end and the seat of described commentaries on classics pin fix, the lower end of described commentaries on classics pin is provided with a step, rear lower in base then is provided with another rotating shaft, on the position of corresponding commentaries on classics pin in this another rotating shaft, be fixed with support arm, when seat is in when digging positioning states, the free end of this support arm just in time offsets with the step of described commentaries on classics underfooting end, also be provided with one on described base top and regulate bolt, when seat is in when digging positioning states, this adjusting bolt overhanging end just in time withstands the back of changeing pin, is with the gravitational equilibrium torsion spring in the rotating shaft at described commentaries on classics pin middle part, one end of torsion spring fixes with changeing pin, and the fixed support of correspondence position fixes in an end and the base.

Described each seat is by being through the transverse tube series connection one at chair pin middle part.

Described commentaries on classics pin upper end is through on the described transverse tube.

At least be provided with a free end of keeping support arm in described another rotating shaft and reach the torsion spring of state up in level, an end and another rotating shaft of this torsion spring fix, and one of them fixed support in the other end and the base fixes.

Described another rotating shaft is connected with at least one step arm.

Described step arm end has an annular and is enclosed within another rotating shaft, and this annular cover has an arc notch, and a sidepiece projection that is enclosed within the power transmission cover that also is fixed as one with it in another rotating shaft just in time is arranged in this breach and still makes arc notch remain with the gap.

The free end of described step arm is hinged with a pedal, the breach of step arm corresponding position coupling on described pedal and the base.

Advantage of the present invention is: compared with prior art, when needs fell seat, only need the support arm place the axle rotation, support arm rotated and leave the step that changes the pin end, touch then or light pulling seat chair, each seat of series connection one will be under the effect of deadweight and fall down automatically; When needs were dug seat, because the return action of gravitational equilibrium torsion spring is arranged, the part gravity that only needs personnel selection to make every effort to overcome the clothes seat get final product, under digging the step that support arm when putting in place then stretches into commentaries on classics underfooting end and locate; Thereby the interlock one of falling of digging of the whole row of realization seat is finished, and has improved operating efficiency greatly; The zero clearance of regulating bolt is provided with the swag phenomenon of then having eliminated seat fully.

(4) description of drawings

Fig. 1 is structural representation of the present invention (broken section)

Fig. 2 is the partial enlarged drawing of Fig. 1

Fig. 3 is the vertical view (broken section) of Fig. 1

Fig. 4 for the A-A amplification view of Fig. 3 (Fig. 4 a, 4b, 4c be respectively the seat that fell depress before the step arm, afterwards and three kinds of states when digging seat)

Fig. 5 is the B-B amplification view of Fig. 4 (Fig. 5 a, 5b are respectively seat be in fell and two kinds of states when digging positioning states)

Fig. 6 is the perspective exploded view of step arm 8, power transmission cover 52, another rotating shaft 5 and pedal 81

Fig. 7 turns over the structural representation of putting detent mechanism for seat of the prior art

(5) specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

As Fig. 1～shown in Figure 6, be one manually to turn over the embodiment of putting seat, locator for turning over row chair comprises seat 1 and the base 3 thereof that several are provided with row, each seat 1 can be by the transverse tube 12 series connection one that are through chair pin 11 middle parts, described transverse tube 12 cross sections so long as not circular, not relatively rotating with seat gets final product, therefore rectangular in the present invention, as long as wherein seat dug or a fell action, then the i.e. rotation synchronously of transverse tube 12 drives then with each seat of arranging and digs synchronously or fell;

At least be provided with one in the appropriate location of transverse tube 12 and change pin 2, the upper end of changeing pin is through on the transverse tube, the middle part is fixed in the rotating shaft 7 that is positioned at base 3 front upper parts (two ends of rotating shaft respectively by bearing fixing on the fixed support 31 of base), and the lower end is provided with a step; Change pin 2 upper ends and be through on the transverse tube and be fixed with one, therefore also can adopt other modes with seat 1, as directly and the chair pin 12 of seat by bolting or directly weld one etc.;

Be with gravitational equilibrium torsion spring 71 in the rotating shaft 7 at described commentaries on classics pin middle part, every in the present embodiment have symmetrical two to seat, and as shown in Figure 3, an end of torsion spring 71 fixes with changeing pin 2, and an end and fixed support 31 fix;

The top of base 3 is provided with one and regulates bolt 4, and when seat 1 is in when digging positioning states, these adjustings bolt 4 overhanging ends just in time withstand the back of commentaries on classics pin 2, as shown in Figure 1.

Rear lower in base 3 is provided with another rotating shaft 5, corresponding position of changeing pin 2 is provided with support arm 6 in this another rotating shaft 5: an end of support arm is enclosed within ringwise in another rotating shaft 5 and by screw and rotating shaft and is fixed as one, in another rotating shaft 5, also be provided with a torsion spring 51 at least, one end and another rotating shaft 5 of torsion spring 51 fix, one of them fixed support 31 in the other end and the base 3 fixes, if it is proper that torsion spring 51 is installed, then be in when falling state when seat 1, the moment of torsion that this torsion spring 51 produces just in time makes the free end of support arm 6 be returned to the state that omits up, certainly be easy for installation, better scheme be moment of torsion with torsion spring 51 be provided with excessive, and fix an overhanging position limit arm 9 again in another appropriate location of another rotating

shaft

5,32 of the fixed supports of its adjacent position have the evagination position to be positioned at its top, shown in Fig. 5 b, therefore be in when falling state when seat 1, the free end of support arm 6 upwards rotates with another rotating shaft 5 under the effect of torsion spring 51, stopped by the evagination position of its contiguous fixed support 32 until position limit arm 9, shown in Fig. 5 a;

Also can be connected with at least one step arm 8 in described another rotating shaft 5, the annular cover of step arm 8 ends is enclosed within another rotating shaft 5 and can rotates relative to another rotating shaft 5, this annular cover has an arc notch, one is enclosed within another rotating shaft 5 and the sidepiece projection of the power transmission cover 52 that is fixed as one by screw just in time is arranged in this arc notch and still makes arc notch remain with the gap, as Fig. 4, shown in Figure 6,53 is stop collar among the figure, the free end of step arm 8 then is hinged with a pedal 81, the breach coupling of step arm 8 corresponding positions on described pedal 81 and the base 3, for pedal 81 can be automatically reset, can be provided with pouring weight 82 in the lower inside of pedal 81 after pin leaves;

During use, if need fall seat 1, then with foot-operated pedal 81 and step arm 8 down, making step arm 8 rotate and drive power transmission cover 52 rotates another rotating shaft 5, referring to Fig. 4 b, so the support arm 6 that is fixed in another rotating shaft 5 rotates and leaves the step that changes pin 2 ends, touch or gently draw arbitrary seat then, whole row's seat will be under the effect of deadweight and fall down automatically, then another rotating shaft 5 is reversed under the effect of torsion spring 51, position limit arm 9 in another rotating shaft 5 is stopped that by the evagination position of its contiguous fixed support 32 this moment, support arm 6 reverted back to level state slightly up, and the cover of power transmission simultaneously 52 drives 8 counter-rotatings of step arm and replys;

When needs are dug seat 1, because the return action of gravitational equilibrium torsion spring 71 is arranged, therefore only the part gravity that needs personnel selection to make every effort to overcome the clothes seat get final product, and when digging near the position, commentaries on classics pin 2 lower ends at first promote support arm 6 and rotate, (at this moment, power transmission cover 52 is rotation simultaneously also, but because of the arc notch of step arm 8 annular covers remains with the gap, so the sidepiece projection of power transmission cover 52 dallies in the arc notch of step arm 8 annular covers, can not drive step arm 8 and rotate synchronously, shown in Fig. 4 c.) when dig put in place after, support arm 6 is replied also and is stretched under the step that changes pin 2 lower ends, thereby makes seat 1 location.

Transverse tube 12 in the foregoing description just with wherein a kind of mode of each seat series connection one, can also will combine as a whole with each seat of arranging by other various existing connected modes, make their actions of digging synchronously or fell.

In the foregoing description seat fell that what adopt is manually foot-operated mode, but according to design of the present invention, described another rotating shaft 5 also can be become power type by motor-driven, its concrete structure slightly.

Claims

1, a kind of locator for turning over row chair, comprise seat (1) and base (3) thereof that several are provided with row, it is characterized in that each seat (1) series connection one, and be provided with one at least and change pin (2), the middle part of described commentaries on classics pin (2) is fixed in the rotating shaft (7) that is positioned at the base front upper part, the upper end of described commentaries on classics pin (2) and seat (1) fix, the lower end of described commentaries on classics pin (2) is provided with a step, rear lower in base then is provided with another rotating shaft (5), on the position of the last corresponding commentaries on classics pin of this another rotating shaft (5) (2), be fixed with support arm (6), when seat is in when digging positioning states, the free end of this support arm (6) just in time offsets with the step of described commentaries on classics underfooting end, also be provided with one on described base (3) top and regulate bolt (4), when seat is in when digging positioning states, this adjusting bolt (4) overhanging end just in time withstands the back of changeing pin, in the rotating shaft (7) at described commentaries on classics pin middle part, be with gravitational equilibrium torsion spring (71), one end of torsion spring fixes with changeing pin (2), and the fixed support (31) of the interior correspondence position of an end and base (3) fixes.

2, locator for turning over row chair as claimed in claim 1 is characterized in that described each seat (1) is by being through transverse tube (12) the series connection one at chair pin (11) middle part.

3, locator for turning over row chair as claimed in claim 2 is characterized in that described commentaries on classics pin (2) upper end is through on the described transverse tube (12).

4, as claim 1 or 3 described locator for turning over row chair, it is characterized in that being provided with at least in described another rotating shaft (5) free end of keeping support arm (6) and reach the torsion spring of state (51) up in level, one end of this torsion spring (51) and another rotating shaft (5) fix, and one of them fixed support (31) in the other end and the base fixes.

5,1 locator for turning over row chair as claimed in claim is characterized in that described another rotating shaft (5) is connected with at least one step arm (8).

6, locator for turning over row chair as claimed in claim 5, it is characterized in that described step arm (8) end has an annular and is enclosed within another rotating shaft (5), this annular cover has an arc notch, and a sidepiece projection that is enclosed within the last power transmission cover (52) that also is fixed as one with it of another rotating shaft (5) just in time is arranged in this breach and still makes arc notch remain with the gap.

7, locator for turning over row chair as claimed in claim 6 is characterized in that the free end of described step arm (8) is hinged with a pedal (81), and described pedal (81) mates with the breach that base (3) is gone up step arm (8) corresponding position.