CN1003120B - Pushichair - Google Patents
Pushichair Download PDFInfo
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- CN1003120B CN1003120B CN87103893.5A CN87103893A CN1003120B CN 1003120 B CN1003120 B CN 1003120B CN 87103893 A CN87103893 A CN 87103893A CN 1003120 B CN1003120 B CN 1003120B
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- pushichair
- push rod
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Abstract
The present invention relates to a pram which comprises a pair of front brackets, a pair of back brackets movably connected with the front brackets through bolts, a pair of seat supporting rods movably connected with the back brackets, a pair of seat hanger rods movably connected with the seat supporting rods, a pair of push rods, transverse connecting components for connecting the left side surface and the right side surface of the pram, and components for fixing the pram in an opening state, wherein the lower ends of push rods are movably connected with the upper ends of the front brackets, and the push rods are also movably connected with the seat hanger rods by the screw bolts of a connecting part; when the pram is in a folding state, back wheels and front wheels are on the same plane, and thus, the pram can stand spontaneously.
Description
The present invention relates to Pushichair, lightweight Pushichair particularly simple in structure.
At present, the Pushichair of various ways is arranged on market, client therefrom chooses and can be fit to their hobby and the Pushichair of needs.The factor that determines them to select is to vary with each individual, but a wherein common factor is in light weight, and simple and light structure is to improve a key factor of Pushichair marketable value.
As prior art related to the present invention be to announce the Pushichair shown in the 15100/1981st as Japanese Utility Model.This kind Pushichair is simple in structure, and attempt realizes expendable weight significantly.Yet, still do not solve a problem.This kind Pushichair is foldable, and after folding was good, its front-wheel and trailing wheel were removed mutually.Like this, when the folding state, this Pushichair comes down to lie in ground, and in other words, this Pushichair self can not erect.So this Pushichair is housed in when leading out or it and seems inconvenient suitable local time.
As prior art related to the present invention also just like the Pushichair shown in the clear 56-128268 of Japanese Patent JP-A2-.This kind Pushichair has the front carriage that a pair of lower curtate has front-wheel, a pair of lower curtate has the posterior bracket of trailing wheel, front and back support intersects respectively, the seat support bar that also has a pair of front portion and above-mentioned posterior bracket to flexibly connect, the a pair of seat support bar that flexibly connects by trunnion and front carriage upper end than lower curtate, the a pair of push rod that flexibly connects by trunnion and front carriage upper end than lower curtate, and be used to connect above-mentioned before, after poppet, the Pushichair left and right side cross-connecting apparatus of seat support bar and push rod, and the open mode blocking device that is used to keep the open mode of this seat coach.
Send though above-mentioned Pushichair also can be rolled over, the folding state is still compact inadequately, and operation is comparatively inconvenience also.Seem convenient inadequately for be housed in some local time.
Therefore, the purpose of this invention is to provide a kind of Pushichair simple in structure and that when folding gets up, self can stand.
Pushichair according to the present invention comprises:
A., a pair of front carriage that front-wheel is arranged in its underpart;
B., a pair of posterior bracket of trailing wheel is arranged in its underpart and be movably attached on the described front carriage by trunnion with the front carriage infall;
C. be movably attached to a pair of seat support bar on described posterior bracket top at its anterior place;
D. be movably attached to a pair of seat hanging stick at described seat support bar rear portion in its underpart;
E. its underpart by trunnion with the top movable bonded assembly pair of push rods of front carriage infall with anterior support;
F. the cross-connecting apparatus that connects the left and right side of the Pushichair that constitutes by described front carriage, posterior bracket, strut bar, seat hanging stick and push rod;
G. fix the open mode blocking device of described Pushichair open mode.
Front carriage, posterior bracket, seat support bar, seat hanging stick, push rod and cross-connecting apparatus are suitably selected length and position to make when Pushichair during by folding, described trailing wheel is shifted to front-wheel, and when described Pushichair when folding is good, described rear portion and anterior wheel are positioned on the roughly the same plane, so that Pushichair self is erect.
According to the present invention, the part count of the skeleton of formation Pushichair is few and simple in structure.In addition because Pushichair himself can be erect when the good state of folding, therefore be easy to carry or seasoning in suitable place.
When needs were turned up Pushichair, at first, the locking that is provided by the open mode blocking device must be provided the operator.Then, the operator changes push rod forward, so trailing wheel is moved toward front-wheel.When Pushichair after folding is good, it roughly is on the same plane that trailing wheel and front-wheel are positioned at, and Pushichair self can be erect.
These purposes of the present invention and other purposes, characteristics, profile and advantage will become more obvious from the following detailed description of the invention of being done in conjunction with the accompanying drawings.
Fig. 1 is the transparent view of explanation first embodiment of the invention;
Fig. 2 is the lateral plan of Pushichair as shown in Figure 1;
Fig. 3 is the amplification view of the connecting bridge of 34 of explanation front carriage sleeve pipe 32 and seat sleeve pipes;
Fig. 4 is the lateral plan behind the Pushichair folding that illustrates as shown in Figure 1;
Fig. 5 is the lateral plan of the explanation second embodiment of the present invention;
Fig. 6 is the lateral plan behind the Pushichair folding that illustrates as shown in Figure 5;
Fig. 7 illustrates the side sectional view of the main portion of second embodiment of the invention;
Fig. 8 is that explanation is moved down slide unit 117 and the view that forms by state shown in Figure 7;
Fig. 9 is the lateral plan that slide unit 117 as shown in Figure 7 and Figure 8 is described;
Figure 10 is the planar view of slide unit 117;
Figure 11 is the side sectional view of slide unit 117;
Figure 12 is the side sectional view of push rod tube 132 as shown in Figure 7 and Figure 8;
Figure 13 is the front elevation of push rod tube 132;
Figure 14 is the planar view of push rod tube 132;
Figure 15 is the side sectional view of the connecting bridge of 102 of slide unit 117 and front frames;
Figure 16 is the side sectional view of the connecting bridge of 110 of push rod tube 132 and push rods;
Figure 17 illustrates that push rod 110 leads the low side of wall and lean against view on the slide unit 117;
Figure 18 is the lateral plan of explanation the 3rd embodiment of the present invention;
Figure 19 is the lateral plan that the folding state of Pushichair as shown in figure 18 is described;
Figure 20 is the structural representation of explanation pair of intersecting fork arm 209 that look and as shown in figure 18 and 210 parts that are associated from the back side of Pushichair;
Figure 21 be illustrate as shown in figure 18 front frame sleeve pipe 219 and the enlarged view of the connecting bridge of 220 of seat sleeve pipes;
Figure 22 is the cutaway view of structure of the connecting bridge of 207 of explanation front frame 202 and push rods;
Figure 23 illustrates slide unit 202, moves down the scheme drawing of the state of back formation from state as shown in figure 22;
Figure 24 is the cutaway view of the slide unit 222 shown in Figure 22 and 23;
Figure 25 is the planar view of slide unit 222;
Figure 26 is the side sectional view of slide unit 222;
Figure 27 is the lateral plan of the push rod tube 238 shown in Figure 22 and 23;
Figure 28 is the front elevation of push rod tube 238;
Figure 29 is the plan view of push rod tube 238;
Figure 30 is the cross sectional view along XXX among Figure 29-XXX line;
Figure 31 is the side sectional view of the connecting bridge of 202 of slide unit 222 and front frames;
Figure 32 is the side sectional view of the connecting bridge of 207 of push rod tube 238 and push rods;
Figure 33 illustrates that the low side of the structure of connecting bridge of 207 of front frame 202 and push rods and described push rod 207 leans against the side sectional view on the wall 236 of leading of slide unit 222;
Figure 34 is the birds-eye view of structure of the connecting bridge of 210 of explanation push rod 207 and crossbars;
Figure 35 is a back view of seeing structure as shown in figure 34 from the back side of Pushichair;
Figure 36 illustrates the central module 249a of horizontal link 249 as shown in figure 20 and the enlarged view of the link between right side members 249c;
Figure 37 is the cross sectional view of edge XXX VII-XXX VII line as shown in figure 34;
Figure 38 is that explanation push rod tube 238 is by the view that promotes forward gently from as shown in figure 37 state.
Fig. 1 is the transparent view of first embodiment of the invention; Fig. 2 is its lateral plan.
Pushichair shown in the figure comprises a pair of front frame 3 and 4 that has front- wheel 1 and 2 at its low side respectively, the a pair of after poppet 7 and 8 that has trailing wheel 5 and 6 at its low side respectively, a pair of seat support bar 9 and 10 and a pair of seat hanging stick 11 and 12, pair of push rods 13 and 14, front frame link 15 is as the cross-connecting apparatus of the two sides that connect Pushichair, pair of cross bar 16 and 17 is as cross-connecting apparatus, hook 18 conducts are the open mode blocking device of Pushichair open mode fixedly, and pair of links 19 and 20 is as the open mode blocking device.
Referring to accompanying drawing 1,, provide support bar 40 and 41 at seat sleeve pipe 33,34 and 15 of front frame links for the contact of the activity between the folding active situation of the sliding condition of setting up seat sleeve pipe 33,34 and front frame link 15.
Fig. 1 and Fig. 2 show the situation that Pushichair is opened.For fixing this open mode, be provided with hook 18 and pair of links 19 and 20.Hook 18 is movably attached on the front carriage 4 by trunnion 42, and hook 18 is suitable for connecting one and is located at the connection trunnion 37 of push rod 14 low sides, thereby makes push rod 14 and front carriage 4 that qualified relation be arranged. Front carriage 3 and 13 of push rods at the right flank that is positioned at Pushichair are provided with same hook.Pair of links 19 and 20, as shown in Figure 1, fixing pair of intersecting fork arm 16 and 17 s' intersection angle and with this fixing push rod 13 and 14 and after poppet 7 and 8 s' position relation.
The seat that bears the baby on Pushichair makes the seat partial fixing by seat support bar 9 and 10, and its back part is fixed by seat hanging stick 11 and 12 simultaneously.The back part at seat can be fixed by push rod 13 and 14.
When needs folding Pushichair, at first must remove the hook 18 of the lock-out state of 13,14 of front carriage 3,4 and push rods, then, pair of links 19 and 20 is moved up gently, remove crossbar 16 and 17 s' lock-out state with this.Under this state, push rod 13 and 14 is pushed away forward, therefore, they rotate along the direction of as shown in Figure 2 the arrow B axle around trunnion 27 and 28, along with the rotation of push rod 13 and 14, and trunnion 25,26(is positioned at seat support bar 9,10 and the infall of 11,12 of seat hanging sticks) move backward, shown in arrow among Fig. 2.At this moment, seat support bar 9 and 10 slide relative in seat sleeve pipe 33 and 34.In addition, seat support bar 9 and 10 is shown in arrow D among Fig. 2, in the infall rotation of 31,32 of seat sleeve pipe 33,34 and front frame sleeve pipes.As a result, trailing wheel 5 and 6 is moved toward front- wheel 1 and 2.
In addition, in aforesaid operations, front frame sleeve pipe 31 and 32 slides on front frame 3 and 4 gently, referring to accompanying drawing 1, when carrying out the operation of above-mentioned folding, strut bar 40 and 41 actions play front frame link 15 for folding, and the left and right side relative motion is with the minimizing horizontal space like this.
Fig. 4 illustrates as Fig. 1, the state that the folding of the Pushichair shown in 2 rises.As shown in the figure, front and back wheel 1,2 and 5,6 is roughly on same level, so that Pushichair can self be erect.In other words, front carriage 3,4, posterior bracket 7,8, seat support bar 9,10, seat hanging stick 11,12, push rod 13,14 and cross-connecting apparatus select suitable length and position can carry out described operation, promptly work as Pushichair by the folding time-out, trailing wheel 5,6 is shifted to front- wheel 1,2, and work as Pushichair after rolling well, trailing wheel 5,6 roughly at grade.
In the above-described embodiments, the structure of Pushichair is, when Pushichair carried out folding, horizontal space can be reduced, and still, Pushichair can be made into the situation that horizontal space does not reduce.Under this kind situation, pair of cross bar 16 and 17 can replace with a pair of vertically extending parallel bar with regard to absolute demand no longer, so that connect posterior bracket 7,8 and push rod 13,14.In the above-described embodiments, front carriage link 15 and pair of cross bar 16,17 are as cross-connecting apparatus; Yet, also can replace with the miscellaneous part that is suitable for connecting left and right sides push rod 13,14.
In addition, in the above-described embodiments, hook 18 and pair of links 19 and 20 are used as the fixedly open mode blocking device of Pushichair open mode, and still, this is an example only, and they can be installed in different positions in a different manner.
Fig. 5 and Fig. 6 are second embodiment of the present invention.
The upper end of front carriage 102 is movably attached to the low side of push rod 110, and push rod 10 has leader 111.Connecting bridge between front carriage 102 and the push rod 110 has a locking machinery 115 to limit the rotation of push rod 110.
The connecting bridge of seat support bar 107 has a seat hanging stick 112 that flexibly connects with it, and the upper end of described seat hanging stick 112 is movably attached on the push rod 110.Be movably attached on the push rod 110 with the pair of cross bar 113 of X type extension and 114 upper end, and its low side is linked on the posterior bracket 104.Pair of cross bar 113 and 114 s' intersection angle is fixing by intersection angle device for limiting 116.
In state as shown in Figure 5, locking machinery 115 limits the rotation of push rods 110, and intersection angle anchor fitting 116 is crossbar 113 and 114 s' intersection angle fixedly, makes Pushichair remain on open mode with this.When Pushichair need be turned up as shown in Figure 6 situation, the intersection angle that forms in the time of can eliminating by intersection angle anchor fitting 116 was fixedly also just disappeared by solid mechanical 115 formed lock-out states thereupon.Push rod among Fig. 5 110 is rotated forward, can get state shown in Figure 6.
When Pushichair during in open mode, locking machinery 115 upper ends by front carriage 102 are placed on the direction that parallels with push rod 110 low sides basically, and restriction push rod 110 rotates with respect to front carriage 102.
Fig. 7 and Fig. 8 are the side sectional views of the main portion of explanation second embodiment.The locking machinery 115 of shown push rod comprises a slide unit 117, spring 118, the convex connecting bridge 119 that can cooperatively interact and spill connecting bridge 120 and 121, and a connecting wall 122.
Fig. 9 has illustrated slide unit 117 individually to Figure 11, and Figure 15 illustrates the side sectional view of the connecting bridge of 102 of slide unit 117 and front carriage.Referring to these accompanying drawings, slide unit 117 longitudinally slides between high relatively primary importance and the relative low second place along the higher-end of front carriage 102 part.Do not go through at this.Spring case 126 is fixedly mounted on the upper inner of front carriage 102 by trunnion 127.Be formed with on spring case 126 and the front carriage 102 vertical to elongated opening 123, trunnion 124 extends through described elongated perforate 123, slide unit 117 is fixedly linked described trunnion 124 simultaneously.Fig. 9 and perforation 128 shown in Figure 11 are suitable for installing trunnion 124, and like this, slide unit 117 can vertically slide and trunnion 124 roughly the same quantity when movable in elongated perforate 123.
As shown in figure 15, support 102 inside forwardly, trunnion 124 has the spring support member 125 of captive joint with it.This spring support member 125 is positioned at spring case 126.Spring 118 is arranged between the diapire and spring support member 125 of spring case 126.The spring 118 fixing spring support members that upwards promote.In other words, spring 118 promotes this slide unit 117 and is returned to residing higher relatively primary importance.
To Figure 11, described slide unit 117 has the inside that a cylindrical portion 131,102 along front carriage 102 extensions then extends through described slide unit 117 referring to Fig. 9.There is convex connecting bridge 119 upper end of described cylindrical portion 131.Can find out best that from Fig. 7 slide unit 117 is by constituting with push rod 110 low side bonded assembly connecting walls 122.Equally also be formed with and lead wall 130.Make it continuous like this, as can be seen from Figure 10, be suitable for installing push rod 110 low sides wall is made of gradually narrow dip plane 129, a pair of its space with described connecting wall 122.Connecting wall 122, the effect of leading wall 130 and dip plane 129 will be described in detail afterwards.
Referring to Fig. 7 and 8, the push rod tube 132 that centers on push rod 110 is fixedly attached on the push rod 110 by trunnion 133 and 134.Push rod tube 132 is by the side sectional view as Figure 12 to 14, and the connecting bridge of 110 of push rod tube 132 and push rods shown in Figure 16 has been described.Referring to these accompanying drawings, push rod tube 132 has a pair of convex wall 135, and this convex wall is movably attached to the upper end of push rod 110 by adapter shaft 136, shown in Fig. 7 and 8.Be that push rod 110 is movable around the axle that connects trunnion 136. Perforation 137 and 138 as shown in figure 12 is used for installing trunnion 133 and 134.Adapter shaft 136 pass as shown in figure 12 perforation 139 and perforation 140 shown in Figure 15.
When Pushichair during in open mode, the front end face of push rod tube 132 protruding walls 135 is relative annexations with the cylindrical portion 131 of slide unit 117.The front end face of protruding wall 135 is connected with the convex connecting bridge 119 of slide unit 117 with 121 by spill connecting bridge 120.
As shown in Figure 7, when slide unit 117 was in higher relatively primary importance, the convex connecting bridge 119 of slide unit was connected with spill connecting bridge 120 in the higher position.On the other hand, when slide unit 117 during in the low relatively second place, as shown in Figure 8, convex connecting bridge 119 connects the spill connecting bridge 121 of lowers.
Referring to Fig. 7 and Fig. 8 the service condition that locks machinery 115 is discussed.
When Pushichair was in open mode, the upper end of front carriage 102 was parallel to the low side of push rod 110.When slide unit 117 was in as shown in Figure 7 primary importance, connecting wall 122 connected the low side of push rods 110, limits the rotation of described push rod 110 with this.This lock-out state can keep firm by the action of spring 118.In addition, the installation of 120 of convex connecting bridge 119 and spill connecting bridges can firmly keep the lock-out state set up by connecting wall 122 equally.
When needs folding Pushichair, slide unit 117 slides to the second place shown in Figure 8.With slide unit 117 motions response mutually, cylindrical portion 131 is once outwardly-bent, and this makes convex connecting bridge 119 connect spill connecting bridge 121.When spring 118 moved up slide unit 117, the assembling that connects convex and concave portions 119 and 121 stoped such motion.When slide unit 117 during in the second place, being connected between the low side of connecting wall 122 and push rod 110 removes.Therefore, if when push rod 110 is pushed away forward, push rod tube 132 and push rod 110 be rotation in the counterclockwise direction together, as shown in Figure 8.As a result, the device that the convex connecting bridge of slide unit 117 and the spill connecting bridge of push rod tube 132 are 121 is cancelled, and slide unit 117 is returned to primary importance as shown in Figure 7 under the effect of spring 118 like this.
The operational circumstances of Pushichair from the folding state to open mode is discussed below.When push rod 110 rotations realized the open mode of Pushichair, at first, the low side of push rod 110 leaned against leading on the wall 130 of slide unit 117.When push rod 110 further when this state is rotated in a clockwise direction, lead wall 130 and pushed away to pressing down, thereby make slide unit 117 to lower slider by the low side of push rod 110.When the low side of push rod 110 was parallel to the upper end of front carriage 102 in fact, slide unit 117 upwards slided under the effect of spring 118, up to the state that obtains as shown in Figure 7.Like this, owing to lead the existence of wall 130, make locking machinery 115 no longer need to finish the special operational of lock-out state.Yet,, can lead wall 130 if pass over the decline slightly of operating characteristic.Under this kind situation, forwardly the upper end of support 102 is also with before the low side of push rod 110 is not parallel, must move by hand slide unit 117 is finished to lower slider.
In addition, the inclined surface 129 that forms on the slide unit 117 is used as smooth guide push rod 110 when the latter clockwise rotates as shown in figure 17.
When the locking machinery of the left surface that is positioned at Pushichair had been described in described embodiment, can notice at right flank had same locking machinery.
Figure 18 and Figure 19 show second of the present invention and implement illustration.18 show the open mode of Pushichair, and Figure 19 shows the folding state of Pushichair.Two figure all show the left surface of Pushichair, the structure on right side with shown in structure be symmetrical.
Described Pushichair is included in a pair of front frame 202 that its low side has front-wheel 201 respectively, the a pair of posterior bracket 204 that has trailing wheel 203 at its low side respectively, a pair of seat support bar 205, a pair of seat hanging stick 206, pair of push rods 207, be used to connect the front carriage link 208 of the cross-connecting apparatus of Pushichair another side, as the pair of cross bar 209 and 210 of cross-connecting apparatus, and fixedly Pushichair at the open mode blocking device 211 of open mode.
Front and rear support 202 and 204 intersects mutually and is movably connected in its intersection by trunnion 212.The front portion of seat support bar 205 is movably attached to the top of posterior bracket 204 by trunnion 213.The lower curtate of seat hanging stick 206 is movably attached to the lower curtate of seat support bar 205 by trunnion 214.
The lower curtate of push rod 207 is movably attached to the top of front carriage 202 by adapter shaft 215.When the open mode of Pushichair, the lower curtate of push rod 207 is parallel to the top of front carriage 202.There is leader 216 upper end of push rod 207, and the person holds for pushing away the Pushichair.Push rod 207 and seat hanging stick 206 are movably connected by trunnion 217.
Although clearly do not draw among the figure, front carriage link 208 is movably attached on a pair of front carriage 202 and fold-down is repeatedly in the middle.
Figure 20 is that explanation is thrown the scheme drawing that shows by pair of cross bar 209 shown in Figure 180 and 210 places from the back side of Pushichair.Pair of cross bar 209 and 210 intersects mutually and is movably connected by trunnion 218 at its infall.This will be discussed with the situation that is connected of pair of push rods 207 and a pair of posterior bracket with 210 afterwards to crossbar 209.
Referring to Figure 18, front carriage 202 has the front carriage sleeve pipe 219 that can prolong its slip.Seat support bar 205 has thereon slidably seat sleeve pipe 220.Front carriage sleeve pipe 219 and seat sleeve pipe 220 are movably connected.Figure 21 is the enlarged drawing of the connecting bridge of 220 of front carriage sleeve pipe 219 and seat sleeve pipes.Referring to this figure, front carriage sleeve pipe 219 front carriage 202 that has been slidingly installed, seat support bar 205 and seat sleeve pipe 220 has been slidingly installed.Front carriage sleeve pipe 219 and seat sleeve pipe 220 are movably connected by trunnion 221.
Although in Figure 18 and Figure 19, do not draw, be between the folding of the slip of seat sleeve pipe 220 and front carriage link 208, to set up effectively to be connected, be provided with strut bar at seat sleeve pipe 220 and 208 of front carriage links.
Figure 18 has illustrated the open mode of Pushichair, in order to fix this open mode, is provided with open mode blocking device 211.Open mode blocking device 211 restriction push rods 207 are with respect to the rotation of front carriage 202, and fixing pair of cross bar 209 and 210 s' intersection angle.The detailed description of open mode blocking device 211 will be carried out in the back.
The seat that bears the baby that is located in the Pushichair connects its seat part and connects its back part with seat hanging stick 206 by seat support bar 205.In addition, back part can connect with push rod 207.
The substantial portion that third embodiment of the invention will be discussed below is an open mode blocking device 211.
Figure 22 and Figure 23 are the side sectional views of open mode blocking device 211.Open mode blocking device 211 comprises a slide unit 222, spring 223, interconnected convex connecting bridge 224 and spill connecting bridge 225,226, and a connecting wall 227.
Figure 24 has illustrated slide unit shown in Figure 22 222 to Figure 26 order, and Figure 31 is the side sectional view of the connecting bridge of 202 of explanation slide unit 222 and front carriage.Referring to these accompanying drawings, slide unit.Longitudinal sliding motion between the first relative higher position, top of support and the second relatively low position forwardly.Especially, forwardly in the upper end of support 102, spring case 229 is fixed on its inside by trunnion 228.Spring case 229 and front carriage 202 have perpendicular elongate perforate 230.Slide unit 222 is fixedly linked on the trunnion 231.Trunnion 231 is installed in Figure 24 and perforation 232 shown in Figure 26, and like this, the vertical slip of slide unit 222 can be identical with the quantity that trunnion 231 moves in elongated perforate 230.
As shown in figure 31, forwardly in the support 202, be fixed with spring support member 233.Spring support member 233 is placed in the spring case 229.Spring 223 is arranged on 233 of the diapire of spring case 229 and spring support members.Spring 223 makes spring support member 233 upward movements all the time.In other words, spring 223 makes slide unit 222 return back to higher relatively primary importance.
Referring to Figure 24 to 26, slide unit 222 has a cylindrical portion 234 of extending along front carriage 202 directions, 202 extend through slide unit 222, there is convex connecting bridge 224 upper end of described cylindrical portion 234, from Figure 22, can find out best, slide unit 222 contains the connecting wall 227 that is connected with push rod 207 low sides, contains also that to lead wall 236 mutually continuous with described connecting wall 227.As shown in figure 25, be suitable for installing low side wall is made of the gradually little inclined surface 237 of a pair of its spacing of push rod 207.Connecting wall 223 goes through after leading the acting on of wall 236 and inclined surface 237.
Referring to Figure 22 and Figure 23, be fixedly attached on the push rod 207 by trunnion 239 and 240 round the push rod tube 223 of push rod 207.Figure 27 shows push rod tube 238 to Figure 30.Figure 32 is the side sectional view of the connecting bridge of 207 of explanation push rod tube 238 and push rods.Referring to those accompanying drawings, push rod tube 238 has a pair of protruding wall 241, and this is the upper end that is movably attached to push rod 202 by adapter shaft 215 to protruding wall.Be that push rod 207 is along adapter shaft 215 movable rotations.Perforation 242 and 243 as shown in figure 27 is used for installing trunnion 133 and 134.Adapter shaft 215 passes the perforation 245 that perforation 244 as shown in figure 27 reaches as shown in figure 31.
When Pushichair during in open mode, the front end face of the protruding wall 241 of push rod tube 238 is relative relations with the cylindrical portion 234 of slide unit 222.The front end face of protruding wall 241 is made of the convex connecting bridge 224 bonded assembly spill connecting bridges 225 and 226 with slide unit 222.
When slide unit 222 was in higher relatively primary importance, as shown in figure 22, the convex connecting bridge 224 of slide unit 222 connected the spill connecting bridge 225 of eminence.On the other hand, when slide unit 222 during in the relatively low second place, as shown in figure 23, convex connecting bridge 224 connects the spill connecting bridge 226 of lowers.
Related work situation referring to accompanying drawing 22 and 23 explanation front carriage 202 and push rod 207.
When Pushichair during in open mode, the upper end of front carriage 202 be parallel to push rod 207 than low side.When slide unit 222 during in primary importance shown in Figure 22, connecting wall 227 connect push rods 207 than low side, limit the rotation of described push rod 207 like this.This lock-out state is firm the maintenance by the action of spring 223.In addition, the same firm lock-out state set up by connecting wall 227 of keeping of the device of 225 of convex connecting bridge 224 and spill connecting bridges.
When needs folding Pushichair, slide unit 222 slides to the second place as shown in figure 23.As response to the action of slide unit 222, cylindrical portion 234 is once outwardly-bent, make convex connecting bridge 224 connect spill connecting bridge 226, when spring 223 made slide unit 222 upward movements, convex connecting bridge and spill connecting bridge 224 and 226 s' assembling stoped such motion.When slide unit 222 was in the second place, being connected between connecting wall 227 and push rod 207 low sides cancelled, and like this, if push rod 207 is pushed away forward, push rod tube 238 and push rod rotate together in the counterclockwise direction, as shown in Figure 8.As a result, the assembling that the convex connecting bridge 224 of slide unit 222 and the spill connecting bridge of push rod tube 238 are 226 is removed, and the effect lower slider parts 222 at spring 223 are returned to primary importance shown in Figure 22 like this.
The service condition of Pushichair from the folding to the open mode is discussed below.When push rod 207 rotated the open mode that realizes Pushichair, at first the low side of push rod 207 leaned against leading on the wall 236 of slide unit 222.When push rod 207 is further clockwise rotated by this state, lead wall 236 by the pushing away of push rod 207 downwards than low side, wherein slide unit 222 is to lower slider.When push rod 207 be parallel to the upper end of front carriage 202 than low side the time, slide unit 222 upwards slides under the effect of spring 223, up to the state that arrives as shown in figure 22.Like this, the existence of leading wall 236 does not need to finish the special operational that makes blocking device 211 place lock-out state.Yet,, can not establish and lead wall 236 if allow the quite a lot of or difference of reliability.Under the sort of situation, forwardly the upper end of support 202 is parallel to before the push rod 207, must be with manually making slide unit 222 to lower slider.
In addition, the inclined surface 237 that forms on the slide unit 222 when push rod 207 clockwise rotates as shown in figure 33 as the usefulness of smooth guide push rod 207.
Figure 34 is the birds-eye view of explanation pair of push rods 207 and pair of cross bar 209 and 210 s' connecting bridge structure.In the figure, incoherent part is omitted.Figure 35 is the back view of part shown in Figure 34.
Referring to Figure 20 and Figure 34, Figure 35, a pair of inner transverse surface that is positioned at the push rod tube 238 on the left side and the right has a L type link 246 that is attached thereto by trunnion 240.Each link 246 can laterally rotate in the vertical plane surface.The upper end of one crossbar 209 is movably attached on the link 246 that is positioned at the Pushichair right flank by bolt 248.The upper end of another crossbar 210 is movably attached on the link 246 of Pushichair left surface by trunnion 247.Horizontal link 249 along the Pushichair horizontal expansion is connected in 246 of a pair of links by trunnion 247 and 248.Can know from Figure 20 and find out that a transverse link 249 is made up of three parts: central module 249a, left-hand side part 249b and right side members 249c.The left end of left-hand side part 249b is movably attached on the link 246 by trunnion 247, and its right-hand member is movably attached on the central module 249a by trunnion 250.The right-hand member of right side members 249c is linked on the link 246 by trunnion 248 activities, and its left end is linked on the central module 249a by trunnion 251 activities.In other words, horizontal link 249 folding that can make progress in the middle is shown in arrow A and B among Figure 20.
Figure 36 is the enlarged diagram of the connecting bridge between the right side members 249c of central module 249a and transverse link 249.As shown in the figure, central module 249a constitutes by wall 252 by leaning against the upper face that right side members 249c goes up to prevent downward folding, when Pushichair during in open mode, describedly leans against on the upper face of right side members 249c by wall 252.Between left-hand side part 249b and central module 249a, also use similar structure.In Figure 36, the folding situation that makes progress a little separately of central module 249a and right side members 249c is illustrated by the broken lines.
Referring to Figure 18 and Figure 20, each all has a Connection Element 256 that flexibly connects with it by trunnion 263 in a pair of posterior bracket 204.Posterior bracket link 253 is connected 256 of a pair of Connection Elements by trunnion 257 and 258.As shown in figure 20, posterior bracket Connection Element 253 is made up of left side connecting rod 253a and right side connecting rod 253b.Left side connecting rod 253a is movably attached on the Connection Element 256 that is positioned at the Pushichair left surface by bolt 257.Right side connecting rod 253b is movably attached on the Connection Element 256 of Pushichair right flank by trunnion 258.Left side connecting rod and right side connecting rod 253a and 253b are movably connected by trunnion 254.Right side connecting rod 253b is made of by wall the upper surface that is suitable for leaning against left side connecting rod 253a, the described downward folding that leans on wall 255 to prevent link 253.Yet back part connecting part 253 allows by the state shown in Figure 20 folding that makes progress.
As seen from Figure 20, the low side of a crossbar 209 is movably attached on the connecting rod 253a of left side by trunnion 259, and another crossbar 210 is linked on the connecting rod 253b of right side by trunnion 260 activities.
Referring to Figure 28, Figure 29 and Figure 34, Figure 35, the inside face of push rod tube 238 is fixed with the supporting walls 261 that extends internally.The shape of supporting walls 261 can be clear that in Figure 30 referring to Figure 28.Figure 30 is the section-drawing that intercepts along the line XXX-XXX among Figure 29.As shown in figure 30, supporting walls 261 has an accessory constituent 262 that protrudes downwards.
Figure 37 is along Figure 34 center line XXX scheme drawing that VII-the XXX VII intercepts.Referring to Figure 37, Figure 34 and Figure 35, when Pushichair during in open mode, promptly when the rotation of push rod 207 is limited by the connecting wall 227 of slide unit 222, supporting walls 261 leans against on the upper surface of transverse link 249 folding with this limit lateral connecting rod 249.Referring to Figure 20, the restriction of transverse link 249 foldings has been fixed the intersection angle of pair of cross bar 209 and 210.In addition, can clearly be seen that, to this intersection angle of having fixed front and rear support 202 and 204 intersection angle of crossbar 209 and 210 from Figure 18.Kindred circumstances, by being connected between the low side of slide unit 222 on the support 202 forwardly and push rod 207, it is stable that the open mode of this Pushichair easily keeps.
When needs are opened Pushichair, can slide to as shown in figure 23 the second place to slide unit 222.When push rod 207 rotated forward, supporting walls 261 was removed from the upper surface of transverse link 247, as shown in figure 38.Like this, the upwards folding of transverse link 249 can carry out, and this rotation to crossbar 209 and 210 also can be carried out.Like this, by the rotation of push rod 209, make the horizontal and vertical folding of Pushichair, up to the state that reaches as shown in figure 19.
Described embodiment is an example of the present invention only.Therefore, the distortion of various ways can be arranged within the scope of the invention.For example, not absolute demand posterior bracket link 253 in Figure 20.In this case, this can be movably attached to a pair of posterior bracket 204 to crossbar 209 and 210, for example, and by spherical bearing (spherical bearing).But, used posterior bracket link 253 to strengthen the structure of Pushichair under open mode.
In the above-described embodiments, a pair of slide unit 222, a pair of spring 223, interconnective machicolated form part 224 and 226, and a pair of connecting wall 227 is used as push rod locking machinery to stop push rod 207 with respect to front carriage 202 rotations.But, available different push rods locking machinery.For example, the available as described hook of first embodiment and be connected trunnion and hinder the rotation of making push rod.
Although the present invention has been done to describe in detail and describe, can be expressly understood that the description of being done is an example, and be not that the spirit and scope of the present invention are limited by following claim as limitation of the present invention.
Claims (34)
1, a kind of Pushichair, comprise: a pair of front carriage (3 that front-wheel is arranged at its lower curtate, 4), the a pair of posterior bracket (7 that trailing wheel is arranged at its lower curtate, 8), described front carriage and posterior bracket flexibly connect by trunnion mutually at its place of intersecting, a pair of seat support bar (9,10) with the support seat that extend front and back, the front portion of described seat support bar is movably attached to the upper end of described posterior bracket, its lower curtate is movably attached to the pair of push rods (13,14) on described front carriage (3,4) top, be used for connecting by described front carriage (3,4), posterior bracket (7,8), seat support bar (9,10) and the cross-connecting apparatus (15,16 of the left and right side of the Pushichair that constitutes of push rod (13,14), 17) and be the open mode blocking device (18 of the open mode of fixing described Pushichair, 19,20), the invention is characterized in:
The leading portion of described posterior bracket is extensible to exceed described front carriage, described Pushichair comprises further that also lower curtate is movably attached to described seat support bar (9,10) the seat hanging stick (11 at rear portion, 12), described push rod and described seat hanging stick intersect, and described push rod and seat hanging stick flexibly connect by trunnion at its infall, described front carriage (3,4), posterior bracket (7,8), seat support bar (9,10), seat hanging stick (11,12), push rod (13,14) and cross-connecting apparatus (15,16,17) have through the length of suitable selection and position can finish such function: promptly when Pushichair is turned up, described trailing wheel is shifted to described front-wheel and when described Pushichair during at the good state of folding, described trailing wheel and front-wheel place on the roughly same horizontal surface, thereby Pushichair can be erect.
2, Pushichair as claimed in claim 1 is characterized in that, described front carriage (3,4) have the front carriage sleeve pipe (31,32) that can slide thereon, and described seat support bar (9,10) has the seat sleeve pipe (33,34) that can slide thereon;
Described front carriage sleeve pipe (31,32) and described seat sleeve pipe (33,34) are movably connected by trunnion in its intersection.
3, Pushichair as claimed in claim 1 is characterized in that, described cross-connecting apparatus comprises:
Be connected described this between front carriage (3,4) and front carriage link (15) can folding in the middle of it, and;
A pair of crossbar (16,17) cross one another and that flexibly connect at its infall, the upper end of described crossbar are movably attached to that described pair of push rods (13,14) goes up and its low side is movably attached to described a pair of posterior bracket (7,8).
4, Pushichair as claimed in claim 3 is characterized in that, described front carriage (3,4) has and can go up the front carriage sleeve pipe (31,32) that slides at support (3,4),
Described seat support bar (9,10) has the seat sleeve pipe (33,34) that can slide thereon,
Described front carriage sleeve pipe (31,32) and described seat sleeve pipe (33,34) are movably connected by trunnion in its junction, and;
At the strut bar (40,41) that is provided with between described seat sleeve pipe (33,34) and described front carriage link (15) with foundation activity contact between the folding motion of the slip of this seat sleeve pipe (33,34) and described front carriage link (15).
5, Pushichair as claimed in claim 3 is characterized in that, described open mode blocking device comprises the device that the described push rod of restriction (13,14) rotates with respect to described front carriage (3,4).
6, Pushichair as claimed in claim 3 is characterized in that, described open mode blocking device comprises the device (19,20) of fixing described pair of cross bar (16,17) intersection angle.
7, Pushichair as claimed in claim 1 is characterized in that, is used to limit push rod and finishes by low the bringing in that the upper end that makes described front carriage is parallel to described push rod with respect to the open mode blocking device of described front carriage rotation, and comprise;
Slide unit (117) that can longitudinal sliding motion between the primary importance higher relatively on the described front carriage (102) and the relatively low second place,
Make described slide unit (117) be returned to the spring (118) of described primary importance;
That form in described slide unit (117) part relative and can be combined together the protruding and concave portions (119,120,121) of limit slippage component movement during at least in the second place when described slide unit (117) with described push rod (110), and;
Be fixedly installed on the connecting wall (122) on the described slide unit (117), described connecting wall (122) can connect the low side of described push rod (110) during in primary importance when described slide unit (117) and break away from described push rod (110) to allow the rotation of described push rod (110) during in the second place when described slide unit (117).
8, Pushichair as claimed in claim 7, it is characterized in that, described slide unit (117) constitutes by leading wall (130), and the described wall (130) of leading makes slide unit (117) to lower slider when Pushichair can move downward during from the folding state-transition to open mode with this.
9, Pushichair as claimed in claim 1 is characterized in that, described Pushichair is foldable, and described pair of push rods is designed to when Pushichair during in open mode, and the lower curtate of described pair of push rods is parallel to the top of described front carriage;
Described Pushichair further comprises:
The a pair of link (246) that is connected on the described pair of push rods (207) in vertical plane surface, rotating;
Pair of cross bar (209,210) cross one another and that flexibly connect at infall, the upper end of described crossbar are movably attached to that described a pair of attaching parts (246) is gone up and its low side is movably attached on the described a pair of posterior bracket (204), and,
Foldable its other end of horizontal pipe link (249) in middle part is movably attached to this on the link (246), and;
Described open mode blocking device comprises;
Be used to limit the push rod locking machinery (222,223,224,226,227) that described push rod (207) rotates with respect to described front carriage (202),
On described push rod (207), fixedly install supporting walls (261), and can lean against the upper surface of described horizontal pipe link (249), locked machinery (222 with rotation by described push rod when described push rod (207), 223,224, limit the folding of described transverse link (249) when 226,227) limiting.
10, Pushichair as claimed in claim 9 is characterized in that, described transverse link (249) and described pair of cross bar (209,210) green phase trunnion (247,248) together is connected on the described a pair of link (246).
11, Pushichair as claimed in claim 9 is characterized in that, described push rod locking machinery comprises:
The a pair of slide unit (222) that between the higher relatively primary importance in the upper end of described front carriage (202) and the relatively low second place, can both slide along its length,
The a pair of spring (223) that makes described slide unit (222) be returned to described primary importance,
That form in the relative part of described slide unit (222) and described push rod (207) and can cooperatively interact during at least in the second place with the machicolated form that limits described slide unit (222) motion partly (224 when described slide unit (222), 226), and;
A pair of connecting wall (227), this can connect the low side of described push rod (207) to place restrictions on the rotation of described push rod at described slide unit (222) during in primary importance in the connecting wall (227) each, and push rod (207) is spun off during in the described second place at described slide unit (222), to allow the rotation of described push rod (207).
12, as the Pushichair as described in the claim 9, it is characterized in that described slide unit (222) leads wall (236) by two and constitute, this is led wall (236) and can be pushed downwards by the low side of described push rod (207) when Pushichair changes from the folding state to open mode, to guide described slide unit (222) to downslide.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14905186A JPH085389B2 (en) | 1986-06-24 | 1986-06-24 | Lock mechanism of push rod of baby carriage |
| JP149051/86 | 1986-06-24 | ||
| JP15996086A JPH085387B2 (en) | 1986-07-07 | 1986-07-07 | baby carriage |
| JP159960/86 | 1986-07-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87103893A CN87103893A (en) | 1988-01-06 |
| CN1003120B true CN1003120B (en) | 1989-01-25 |
Family
ID=26479059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87103893.5A Expired CN1003120B (en) | 1986-06-24 | 1987-05-27 | Pushichair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003120B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083678A1 (en) * | 2009-01-23 | 2010-07-29 | 好孩子儿童用品有限公司 | Umbrella handle type pram |
| CN101722977B (en) * | 2010-01-29 | 2012-12-26 | 好孩子儿童用品有限公司 | Baby carriage |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2428383Y (en) * | 2000-01-03 | 2001-05-02 | 好孩子集团公司 | Bassinet |
| CN102343927A (en) * | 2010-08-02 | 2012-02-08 | 明门香港股份有限公司 | Foldable baby carriage frame |
| CN105923034B (en) * | 2011-11-01 | 2018-06-12 | 康贝株式会社 | Perambulator |
| CN108995700A (en) * | 2018-08-23 | 2018-12-14 | 曹晓波 | Foldable baby stroller vehicle frame |
| CN115180013B (en) * | 2022-06-13 | 2023-12-29 | 好孩子儿童用品有限公司 | Folding baby carriage |
-
1987
- 1987-05-27 CN CN87103893.5A patent/CN1003120B/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083678A1 (en) * | 2009-01-23 | 2010-07-29 | 好孩子儿童用品有限公司 | Umbrella handle type pram |
| CN101722977B (en) * | 2010-01-29 | 2012-12-26 | 好孩子儿童用品有限公司 | Baby carriage |
Also Published As
| Publication number | Publication date |
|---|---|
| CN87103893A (en) | 1988-01-06 |
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