CN2596874Y

CN2596874Y - Tall feet chair

Info

Publication number: CN2596874Y
Application number: CNU022594558U
Authority: CN
Inventors: 陈舜民
Original assignee: 郑钦明
Priority date: 2002-10-11
Filing date: 2002-10-11
Publication date: 2004-01-07
Anticipated expiration: 2012-10-11

Abstract

A high leg chair mainly comprises an elevating device and a foldable foot seat, wherein the elevating device includes a function lever, an outer tube and a cylinder rod. The foot seat comprises an upper pivotal part, a lower pivotal part and a plurality of support legs. Each support leg is respectively pivotally connected with an upper pivotal part and a lower pivotal part, wherein the upper pivotal part is fixed on the outer tube of the elevating device, and the lower pivotal part is fixed on the lower part of a sliding sleeve and can slide together with the sliding sleeve. The function lever can be used by the way of pressing with single hand or foot-operation to adjust the height, which is very convenient; the volume of the foot seat can be gathered up to the smallest through the axial slide of the sliding sleeve on the outer tube.

Description

High chair

(1) technical field

The relevant a kind of multi-functional high chair of the utility model especially can conveniently be adjusted height and can draw the very infant high chair of small size in about a kind of.

(2) background technology

The infant is comparatively soft because of skeletal structure, thus often must clasp or it is supported on the infant high chair by the adult, to safeguard infant's safety.

But the aforementioned method of clasping by the adult, because of adult's muscular strength limited, so cause adult's fatigue easily.Though and aforementioned support infant's high chair can support the infant, but because of infant growth very fast, must cooperate its height to adjust chair height degree at any time, and when when have a dinner in the dining room, outside, if aforementioned high chair can be adjusted its height, then must not require to provide a standard high chair, so need a kind of infant high chair that can conveniently adjust height to the dining room.

Fig. 1 shows a known infant high chair commonly used.In general, runners presents inverted v-shaped or L shaped, its Height Adjustment mechanism engages with draw-in groove, when adjusting height, must use two hand operateds, button (not shown) in the both sides Height Adjustment mechanism 120 is depressed, lining 100 is moved up and down along pin axon pipe 110, adjust the height of seat by this.But the adult holds anything else on hand sometimes, can't operate, thus must earlier the infant be put on the high chair, and then thing on hand is placed on one side, carry out Height Adjustment with both hands, this measure is inconvenience really quite.Add the weight of infant and seat itself, it is especially painstaking to make the adult operate.

In addition, known infant high chair is because the relation of stand structure, so can't dismantle, collapse to minimum volume, like this, occupies too many space, thereby causes and inconvenience such as transport, carry.

(3) utility model content

Because the shortcoming of above-mentioned known infant high chair, the purpose of this utility model provide a kind of can singlehandedly press by or foot-operated mode operate and operate and quite laborsavingly can dismantle again, collapse to minimum state, thereby transport and carry high chair quite easily.

High chair of the present utility model mainly is to be made of an elevating mechanism and a folding runners, and wherein this elevating mechanism comprises an action bars, an outer tube and a piston rod.The piston rod top is provided with a pin hole, and in order to insert a latch, latch can make piston rod and seat base be combined into one by this.Be provided with a retractable guard around piston rod, the bellows-shaped as folding can coat piston rod, and make high chair have more graceful outward appearance.Action bars is to present a long Contraband font, can singlehanded press by or foot-operated mode operate, quite convenient.

This runners comprises articulated section on, once articulated section and a plurality of leg.Each leg is provided with first fen leg and second fen leg again, be to be articulated on one the articulated section respectively and once on the articulated section, and the free end of each leg is respectively equipped with pulley so that slide on ground.Should go up articulated section be to be fixed on the outer tube of elevating mechanism, and following articulated section is to be fixed on the bottom of a sliding sleeve and can to slide with sliding sleeve.By sliding sleeve endwisely slipping on outer tube, to realize the gathering of runners.Being provided with a self-locking plastic cement in the bottom of outer tube, is to be hollow cylindrical, and its periphery is equipped with four engaging fins respectively, in order to engage articulated section down.

In high chair elevating mechanism of the present utility model, generally can use oil pressure or pneumatic cylinder, therefore quite laborsaving in operation, though infant sitting on high chair, the adult operates and also can not feel heavy.Only need again to press or foot-operated mode, so, still can carry out lift in height freely even hold other article in the hand with the one hand pressure.In high chair of the present utility model, owing to be provided with folding runners, so can collapse to minimum volume.Again by latch, it is fixing that the piston rod of seat body and elevating mechanism is assembled detachably, so quite convenient and do not take up space on dismounting is transported.Simultaneously, runners is provided with a plurality of legs, launches fully during use, can make high chair firmly stand on ground.

(4) description of drawings

Describe structure of the present utility model, characteristics and function in detail below with reference to accompanying drawing, wherein:

Fig. 1 is a stereogram, shows that a known infant uses high chair.

Fig. 2 is a stereogram, shows the state of high chair of the present utility model when runners expansion and piston rod rising, and wherein the part of seat is represented by dotted lines.

Fig. 3 is a stereogram, shows the state of high chair of the present utility model when runners gathering and piston rod decline, wherein omits the part of seat.

Fig. 4 is a profile, shows that high chair of the present utility model launches and the state of piston rod when rising to the summit at runners.

Fig. 5 is a profile, shows that high chair of the present utility model draws in and the state of piston rod when dropping to the bottom at runners.

Fig. 6 is a partial cut away side views of self-locking plastic cement of the present utility model, shows the internal structure and the peripheral engaging fin of self-locking plastic cement.

Fig. 7 a is a summary generalized section, when demonstration is carried out the piston lifting with action bars of the present utility model, and the structure situation in the elevating mechanism.

Fig. 7 b is a summary generalized section, shows when action bars is up pulled to locked position the structure situation in the elevating mechanism.

(5) specific embodiment

Below with reference to description of drawings the utility model, wherein with the embodiment of oil hydraulic cylinder as elevating mechanism in the utility model high chair.Because seat partly is not a principal character of the present utility model, all omits its explanation in this specification.

To shown in Figure 5, high chair of the present utility model comprises two big major parts, is respectively elevating mechanism and runners as Fig. 2.Wherein elevating mechanism comprises an action bars 10, an outer tube 12 and a piston rod 14, is provided with a pin hole 18 at the top of piston rod 14, by inserting a latch (not shown) piston rod 14 and seat base 2 is combined into one.Be provided with a retractable guard 16 in the periphery of piston rod 14, can stretch,, do not make it directly exposed outside, and provide high chair more graceful outward appearance so that coat piston rod 14 along with the lifting of piston rod 14.Runners comprises articulated section 20, following articulated section 24 and a plurality of leg.Last articulated section 20 is to be fixed on the outer tube 12 of elevating mechanism, on the position a little less than action bars 10.Following articulated section 20 is to be fixed on the sliding sleeve 27, and this sliding sleeve 27 can be in axial sliding along the periphery of outer tube 12, endwisely slips by this to draw or to launch runners in.Runners is provided with a plurality of legs, is to be example with six legs in a preferred embodiment of the present utility model, but be not limitation so far, the quantity of leg is three at least, also can be four, five, six or more, as long as can steadily stand on the ground.Each leg is respectively equipped with first fen leg 25 and second fen leg 26 again, leg 25 was articulated in articulated section 20 at first pivotal point, 21 places in first minute, leg 25 was articulating second fen leg 26 at second pivotal point, 22 places in first minute, leg 26 was articulated in articulated section 24 down at the 3rd pivotal point 23 places in second minute, constituted a bar linkage structure like this.The free end of each leg is equipped with a pulley 28, so that slide on the ground.

Expansion of explanation runners earlier and gathering action now.With reference to figure 2 and 4, can very clearly find out the state when runners launches.Because first fen leg 25 and second fen leg 26 are articulated in articulated section 20 respectively and reach articulated section 24 down, so when runners launched, leg 25 expanded outwardly in first minute, just drove sliding sleeve 27 and moved up, gradually near last articulated section 20, till propping up articulated section 20.Same articulated section 24 at present is sticked in the engaging fin 32 on the self-locking plastic cement 30 again, so form fixing deployed condition.In the time that runners will be drawn in,, depress four engaging fins 32 as long as press...with one's finger with reference to figure 3 and 5, make that sliding sleeve 27 can be along outer tube 12 to lower slider, so just, drive all legs and draw in, the whole self-locking plastic cement 30 that covers of following articulated section 24 meetings is finished runners and is drawn action in.

With reference to figure 6, the structure of self-locking plastic cement 30 as can be seen, it is a ring-type cylinder, and circumferential surface is equipped with four engaging fins 32, and this engaging fin 32 has an inclined-plane, so that inclined-plane outstanding by this, and prop up down the articulated section.Be to save material, alleviate the weight of whole high chair, the utility model dwindles the lower outer diameter of elevating mechanism, that is the diameter of outer tube 12 bottoms diminishes, and the external diameter that this diminishes can equal the internal diameter of self-locking plastic cement 30 just.Like this, when self-locking plastic cement 30 is fixed in the outer tube bottom, have only four engaging fins 32 outstanding slightly, can't hinder down articulated section 24 to get back to the position of gathering.Between the internal diameter and external diameter of self-locking plastic cement 30, be provided with a plurality of ribs 34 radially, so can reduce overall weight and but still have enough intensity, the space of engaging fin 32 inside deflections is provided simultaneously.The bottom of outer tube can be concordant with self-locking plastic cement 30, by the nut (not shown) self-locking plastic cement 30 firmly is fixed on the outer tube 12.

Secondly, the action principle of elevating mechanism is described.Be to be example in embodiment of the present utility model, can certainly use pneumatic cylinder with the oil hydraulic cylinder.With reference to figure 7a and 7b, when action bars 10 is pulled up and down, the piston rod 14 in the oil hydraulic cylinder is risen, its principle is the same with the oil pressure chair lift of general office usefulness, omits its explanation at this.When piston rod rises to suitable height, just action bars 10 up can be pulled to locked position, then because the centrifugal cam design of 10 of action bars, lock dog 15 in the oil hydraulic cylinder can be propped up, make its seized piston bar 14, thereby fixed the height of piston rod 14, make the piston rod can not vertical lift.And simultaneously because lock dog 15 seized piston bars 14 so piston rod also can't rotate, can avoid high chair to turn to improperly like this.When desiring to fall piston rod 14, similarly, action bars 10 down need only be pulled from locked position, by infant's weight or the user application of force a little, just can make piston rod 14 reduce to the bottom.

By said structure, the utility model high chair has many advantages.Since action bars 10 can singlehanded press by or foot-operated mode operate, so, still can carry out Height Adjustment quite easily even both hands are held thing.Add that elevating mechanism is with oil pressure or the lifting of air pressure principle, so quite laborsaving, the user can overcome the weight that the infant adds seat itself easily, feels more effort in the time of can not operating as known infant high chair.In addition, when oil pressure or pressure liftable, the speed of Height Adjustment is very slow, and the infant is got a fright.When Height Adjustment when locating, action bars can be pulled to locked position and be fixed, make the piston rod can not vertical lift or original place rotation, so can avoid high chair to turn to improperly.

Because high chair of the present utility model bottom is provided with folding runners, so draw in conveniently, saves many spaces and volume.The runners link design of many leg types makes when runners launches more apparent steady.

Though by an embodiment the utility model is described, the utility model also not only is confined to this.For example elevating mechanism can use oil pressure, air pressure or even spiral lifting mechanism, also not necessarily six of the quantity of runners leg.For person skilled in the art person, after having read specification of the present utility model, slightly modified on material or structure easily surely.Yet as long as without prejudice to spirit of the present utility model, these are easy revises and all still drops in the scope that the utility model claim contained.

At last, what need emphasize is, though oil pressure or pressure liftable mechanism belong to known, but never is used on the relevant devices such as infant high chair.The utility model is intended to overcome the shortcoming of known infant high chair, visualizes in conjunction with oil pressure pressure liftable mechanism and folding runners, produces novel high chair.The utility model is not only easy to operate, and the collapsible again minimum volume that collapses to all has known techniques advantage can't be obtained on using, transporting and carry, have novelty and progressive really, has more the value of utilizing on the industry.

Claims

1. a high chair comprises an elevating mechanism, it is characterized in that:

This elevating mechanism has an action bars, an outer tube and a piston rod, makes the piston rod in this elevating mechanism produce lifting by the operation of action bars;

This high chair further comprises a folding runners, and this folding runners comprises: articulated section on is to be fixed on the outer tube of this elevating mechanism; Once the articulated section is to be fixed on the sliding sleeve, can endwisely slip along this outer tube; And a plurality of legs, each leg is provided with first fen leg and second fen leg again, is articulated in the articulated section respectively and down on the articulated section, this runners can produce runners and launch and gathering by sliding sleeve endwisely slipping on outer tube.

2. high chair as claimed in claim 1 is characterized in that, this elevating mechanism can be oil pressure, hydraulic pressure or spiral lifting mechanism.

3. high chair as claimed in claim 1 is characterized in that this piston rod part is provided with a pin hole, by inserting this latch piston rod and seat base is combined into one.

4. high chair as claimed in claim 1 is characterized in that the periphery of this piston rod is provided with a retractable guard, can stretch with the piston rod lifting.

5. high chair as claimed in claim 1 is characterized in that, this outer tube bottom is provided with a self-locking plastic cement, and it is peripherally installed with four engaging fins, in order to the following articulated section on the engaging sliding sleeve.

6. high chair as claimed in claim 1 is characterized in that, this action bars can singlehanded press by or foot-operated mode carry out Height Adjustment.

7. high chair as claimed in claim 1 is characterized in that, when this action bars is pulled to locked position, but fixed piston rod.

8. high chair as claimed in claim 2 is characterized in that, a plurality of legs of this runners are to be articulated on outer tube and the sliding sleeve with bar linkage structure.

9. high chair as claimed in claim 2 is characterized in that, the minimum number of these a plurality of legs is three.