CN1939788A - Infant cart and protection arm thereof - Google Patents

Abstract

A stroller 10 is equipped with an arm rest 60; a front leg 12 and a rear leg 14 coupled rotatablely with the arm rest 60; and a coupling rod 30 coupled rotatablely with the arm rest 60 and coupled rotatablely with the rear legs 14 through a bracket 38. Further the stroller 10 is equipped with a pinch preventive member 70 supported by the arm rest 60 or the coupling rod 30. The pinch preventive member 70 is arranged filling the gap between the arm rest 60 and the coupling rod 30.

Description

The protection arm of perambulator and perambulator

Technical field

The present invention relates to the protection arm of Collapsible pushchair and perambulator, particularly can prevent from folding operation or launch clothing in the operation etc. to be clamped into the perambulator in the gap that between handrail and rotation are attached at other structure members on the handrail freely, produces and the protection arm of perambulator.

Background technology

Proposed many kinds and be made for practicality newborn child being taken to the perambulator that uses when outdoor.The perambulator that uses nearly all can be that deployed condition is folding to the folded state that is suitable for taking in from the state of taking newborn child at present.

In Collapsible pushchair, rotation links each structure member such as handrail is arranged freely, and, rotate and can fold by each structure member.

But, with respect to rotating under the structure member that links freely, the situation that for example handspike rotates, between handrail and this structure member, produce the gap usually with handrail at handrail.Thereby, in folding operation or in launching operation, clothing might take place sandwich undesirable condition in the gap between handrail and this structure member, even point the undesirable condition that sandwiches in the gap.

Summary of the invention

The present invention makes in view of such problem, and purpose provides and can prevent in folding operation or launch the protection arm that clothing in the operation etc. is clamped in the gap that produces and makes whole weight-saving perambulator and perambulator between handrail and rotation are attached at other structure members on the handrail freely.

The present invention is a kind of Collapsible pushchair, it is characterized in that, possesses: handrail; Foreleg and back leg, rotation is attached on the handrail freely; Union lever, rotation is attached on handrail and the back leg freely; Prevent sandwiching parts, be bearing on handrail or the union lever, the gap filling between handrail and the union lever.

The present invention is a kind of perambulator, it is characterized in that, handrail has armrest body and extends from the rear end of armrest body and rotate the extension that is connected freely on the union lever; Prevent sandwiching parts with the rear end of armrest body and the gap filling between the union lever.

The present invention is a kind of perambulator, it is characterized in that, prevents sandwiching the upper end that parts are embedded in union lever, is bonded the bar supporting.

The present invention is a kind of perambulator, it is characterized in that, the anti-parts that sandwich are fixed on the union lever by the binding parts with handrail and union lever binding.

The present invention is a kind of perambulator, it is characterized in that, anti-sandwich parts have with the cross section of the turning cylinder quadrature of handrail and union lever on have the part of the profile of arcuation.

The present invention is a kind of perambulator, it is characterized in that, prevents that sandwiching parts is bearing on the handrail sliding freely, is pushed to union lever by spring.

The present invention is a kind of perambulator, it is characterized in that, the anti-track that sandwiches parts of supporting sliding freely is formed on the handrail.

The present invention is a kind of Collapsible pushchair, it is characterized in that, possesses: handrail; Foreleg and back leg, rotation is attached on the handrail freely; Handspike, rotation is attached on handrail and the back leg freely; Prevent sandwiching parts, be bearing on handrail or the handspike, the gap filling between handrail and the handspike.

The present invention is a kind of perambulator, it is characterized in that, handrail has armrest body and extends from the rear end of armrest body and rotate the extension that is connected freely on the handspike; Prevent sandwiching parts with the rear end of armrest body and the gap filling between the handspike.

The present invention is a kind of perambulator, it is characterized in that, the anti-parts that sandwich are fixed on the handspike by the binding parts with handrail and handspike binding.

The present invention is a kind of perambulator, it is characterized in that, anti-sandwich parts have with the cross section of the turning cylinder quadrature of handrail and handspike on have the part of the profile of arcuation.

The present invention is a kind of perambulator, it is characterized in that, prevents that sandwiching parts is bearing on the handrail sliding freely, is pushed to handspike by spring.

The present invention is a kind of perambulator, it is characterized in that, the anti-track that sandwiches parts of supporting sliding freely is formed on the handrail.

The present invention is a kind of protection arm of perambulator, between the pair of armrests of perambulator, extend and dispose, and constitute by the centre part that is attached at the pair of end portions on the pair of armrests and be located between pair of end portions, it is characterized in that, centre part possesses: the core part, between pair of armrests, extend, and have elasticity; A pair of soft parts clip core and partly are provided with, and are more soft than core part; Guard block is located on the outer surface of each soft parts, and protects soft parts; Core part is by the hard parts and be configured in soft resinoid component set-up on the hard parts side by side.

The present invention is a kind of protection arm of perambulator, it is characterized in that, the hard parts are made of polypropylene tape.

The present invention is a kind of protection arm of perambulator, it is characterized in that, is provided with dismounting outer dress base-material freely on the outer surface of guard block.

The present invention is a kind of protection arm of perambulator, it is characterized in that, the core part is provided with a pair of soft isolation of components.

The present invention is a kind of protection arm of perambulator, it is characterized in that, each soft parts covers outer surface by guard block; Each soft parts clips guard block and is installed on the core part.

The present invention is a kind of perambulator, it is characterized in that, possesses: a pair of back leg; The drg bearing is installed on each back leg; Axletree is installed on each drg bearing; Trailing wheel is installed on the outboard end of each axletree, is made of single-wheel; Connecting piece extends between each drg bearing, and each drg bearing is linked.

The present invention is a kind of perambulator, it is characterized in that, on the medial end of each axletree the collar is installed, and is provided with to link on the inside face of each drg bearing and uses teat, the binding of the collar of each axletree and each drg bearing is entrenched in the connecting piece end with teat.

The present invention is a kind of perambulator, it is characterized in that, the binding of each drg bearing constitutes the part of oval outer rim with the collar of teat and each axletree, and connecting piece has and the cooresponding oval inner edge of this ellipse outer rim.

The present invention is a kind of perambulator, it is characterized in that, the binding of each drg bearing has pawl with teat, is provided with the connecting hole of this pawl engaging on the connecting piece end.

Description of drawings

Fig. 1 is the partial perspective view of 1-1 embodiment of the perambulator of expression the 1st embodiment of the present invention.

Fig. 2 is the exploded perspective view of Fig. 1.

Fig. 3 is the anti-figure that sandwiches the effect of parts of explanation.

Fig. 4 is the block diagram of the schematic configuration of expression perambulator.

Fig. 5 is the lateral plan of the schematic configuration of expression perambulator, is the figure that the expression handspike is in the state of pushing position, the back side.

Fig. 6 is the lateral plan of the schematic configuration of expression perambulator, is the figure that the expression handspike is in the state of pushing position, opposite.

Fig. 7 is the lateral plan of expression perambulator, is the figure of the folded state of expression perambulator.

Fig. 8 is the partial perspective view of the 1-2 embodiment of expression perambulator of the present invention.

Fig. 9 is the partial top view of expression perambulator.

Figure 10 is the block diagram of the schematic configuration of expression perambulator.

Figure 11 is the lateral plan of expression perambulator, is the figure of the folded state of expression perambulator.

Figure 12 is the partial perspective view of the 1-3 embodiment of expression perambulator of the present invention.

Figure 13 is the part sectional view of expression perambulator.

Figure 14 is the anti-figure that sandwiches the effect of parts of explanation.

Figure 15 is the partial perspective view of the 1-4 embodiment of expression perambulator of the present invention.

Figure 16 be expression the 2nd embodiment of the present invention assembling the block diagram of schematic configuration of protection arm.

Figure 17 is the vertical profile lateral plan of perambulator.

Figure 18 is the enlarged side view that the back of the body supports portion's Supporting fixture and side plate.

Figure 19 is the birds-eye view that the back of the body supports portion's Supporting fixture and headrest portion.

Figure 20 is the action specification figure that the back of the body supports portion's Supporting fixture and headrest portion.

Back of the body when Figure 21 is folding supports the action specification figure of portion's Supporting fixture and headrest portion.

Figure 22 is the birds-eye view of the embodiment of expression protection arm of the present invention.

Figure 23 is the A-A cutaway view of protection arm shown in Figure 22.

Figure 24 is the skeleton diagram in the B-B cross section of expression protection arm shown in Figure 22.

Figure 25 is the skeleton diagram of the up-and-down movement of expression protection arm of the present invention.

Figure 26 is the side sectional view of the variation of expression protection arm of the present invention.

Figure 27 is the block diagram of an example of the perambulator that is made of single-wheel of the left and right sides trailing wheel of expression the 3rd embodiment of the present invention.

Figure 28 is the exploded perspective view of trailing wheel installation portion of the present invention.

Figure 29 is the summary construction diagram of expression trailing wheel connecting state of the present invention.

The specific embodiment

With reference to the accompanying drawings 1-1 to the 1-4 embodiment in the perambulator of the present invention is described.

The 1st embodiment

(1-1 embodiment)

At first, the 1-1 embodiment to perambulator of the present invention describes.

Fig. 1 to Fig. 7 is the figure of the 1-1 embodiment of expression perambulator of the present invention, utilizes Fig. 4 to Fig. 7 wherein, and at first the integral structure to perambulator 10 describes.Here, Fig. 4 is the block diagram of the schematic configuration of expression perambulator 10, Fig. 5 is the lateral plan of the schematic configuration of expression perambulator 10, expression handspike 20 is in the state of pushing position, the back side, Fig. 6 is the lateral plan of the schematic configuration of expression perambulator 10, expression handspike 20 is in the state of pushing position, opposite, and Fig. 7 is the lateral plan of expression perambulator 10, the folded state of expression perambulator 10.

In addition, in this specification sheets (also comprising 1-2 to the 1-4 embodiment described later), " preceding ", " back ", " on ", D score, " fore-and-aft direction " reach the term of " above-below direction ", do not having under the situation of special instructions, mean handspike 20 is configured in back side pushing position and be in the perambulator 10 of deployed condition " preceding ", " back ", " on ", D score, " fore-and-aft direction " reach " above-below direction ".More particularly, " fore-and-aft direction " of perambulator 10 is to link the lower-left of the paper among Fig. 4 and upper right direction, and the lower-left side of the paper among Fig. 4 is the front side of perambulator 10.On the other hand, " above-below direction " of perambulator 10 is the directions that are orthogonal to fore-and-aft direction, is the above-below direction of the paper among Fig. 4.In addition, the perambulator 10 in the present embodiment is as Fig. 4 and shown in Figure 7, is to be roughly symmetrical structure of center with Width (being orthogonal to the direction of fore-and-aft direction and the above-below direction) line of centers along fore-and-aft direction.

To shown in Figure 6, perambulator 10 possesses: pair of armrests 60,60 as Fig. 4; A pair of back leg 14,14 is that a pair of back leg 14,14 that links is freely rotated in handrail 60 and upper part separately, rotates respectively to keep wheel 16,16 freely; A pair of foreleg 12,12 is that a pair of back leg 12,12 that links is freely rotated in handrail 60 and upper part separately, rotates respectively to keep wheel 16,16 freely; A pair of union lever 30,30 rotates the rear partial sum of handrail 60 upper section separately freely and to link, and the pars intermedia of back leg 14 partly rotated freely with below separately links; A pair of side frame 40,40 is respectively the centre portion of foreleg 12 partly to be connected a pair of side frame 40,40 with the below of union lever 30, rotates respectively to be attached at freely on foreleg 12 and the union lever 30; Handspike 20 is the handspikes 20 that extend with U word shape roughly, with the below part of a pair of union lever 30,30 and roughly the two end portions of U word link.The turning cylinder (center of turn) of the turning cylinder (center of turn) of handspike 20 and union lever 30 and side frame 40 and union lever 30 is consistent.And handspike 20 can be configured in pushing position, the back side shown in Figure 5 and opposite shown in Figure 6 pushes on the position.

In addition, to shown in Figure 6, perambulator 10 also possesses a pair of carriage 38,38 as Fig. 4, is the centre portion of back leg 14 and the below of union lever 30 are partly distinguished a pair of carriage 38,38 of bonded assembly, rotates respectively to be attached at freely on back leg 14 and the union lever 30.Therefore, the below part of union lever 30 is rotated via this carriage 38 and is attached at freely on the centre portion of back leg 14.In addition, the turning cylinder of the turning cylinder of the turning cylinder (center of turn) of carriage 38 and union lever 30 and handspike 20 and union lever 30 and side frame 40 and union lever 30 is consistent.

In addition,, on the upper part of union lever 30, be provided with the anti-parts 70 that sandwich, but prevent that for this sandwiching parts 70 narrates in the back as Fig. 4 and shown in Figure 6.

As shown in Figure 4, between a pair of foreleg 12,12, be provided with they bonded assembly foot rests (footrest) 44 and preceding upper lateral part binding stay 42.Preceding upper lateral part wherein links stay 42 as shown in the figure, plays a role with the turning cylinder of foreleg 12 as side frame 40.

In addition, as shown in Figure 4, on the rear end part of side frame 40, be provided with the back of the body that constitutes by U word shape roughly freely with respect to side frame 40 swing and support Supporting fixture 46.And, in the zone that Supporting fixture 46 surrounds, be equipped with lower seat (base sheet) 48 by side frame 40, preceding upper lateral part binding stay 42 and the back of the body.At the rear side of the back of the body to Supporting fixture 46, be provided with the gradient (reclining) that is fixed between a pair of union lever 30,30 and regulate parts 56, by regulating the length of these pitch adjustment parts 56, can regulate the angle of inclination that the back of the body supports Supporting fixture 46.

As clearly expression among Fig. 6, on part below each union lever 30, be provided with sliding freely under deployed condition along the length direction of union lever 30 and engage with the end of carriage 38 and keep the Lock Part 32 of this deployed condition.As Fig. 4 and shown in Figure 6, each Lock Part 32 has outstanding laterally action plate 34.On the other hand, on part below the handspike 20, as shown in Figure 4, be provided with latch-release parts 22 with the unlocking lever 24 that engages with the action plate 34 of Lock Part 32.Latch-release parts 22 are located at the long-distance operating device 28 on the approximate centre part of handspike 20 and slide upward along handspike 20 by operation.If latch-release parts 22 are pulled up, then unlocking lever 24 engages with action plate 34, and Lock Part 32 is by pull-up upward, and Lock Part 32 is disengaged with engaging of carriage 38.

In addition, to shown in Figure 6, on the centre portion of handspike 20, be provided with the latch for printed circuit 26 that slides with respect to handspike 20 by operation long-distance operating device 28 as Fig. 4.On the other hand, as Fig. 5 and shown in Figure 6, on each handrail 60, be provided with a pair of locking protrusion 61a, the 61b that engage the rotation that limits handspike 20 with latch for printed circuit 26.Engage also mutual card with latch for printed circuit 26 by the locking protrusion 61b (Fig. 6) that is located at the rear and end, as shown in Figure 5, handspike 20 is fixed to back side pushing state, in the case, extends upward handspike 20 and union lever 30 almost parallels.On the other hand, engage with latch for printed circuit 26 and mutual only the card by the locking protrusion 61a (Fig. 5) that is located at the place ahead, as shown in Figure 6, handspike 20 is fixed to opposite pushing state, and in the case, handspike 20 extends upward with back leg 14 almost parallel ground.

Effect when then, the perambulator 10 that will be made of such structure being folded describes.

At first, if handspike 20 is in opposite pushing position, then before folding operation, operation long-distance operating device 28 and latch for printed circuit 26 is slided makes handspike 20 move to pushing position (Fig. 5), the back side from pushing position, opposite (Fig. 6).

Then, be configured at handspike 20 under the state of pushing position, the back side, at first, by operating long-distance operating device 28, via latch-release parts 22 Lock Part 32 being slided, with the releasing that engages of carriage 38 with Lock Part 32.Then, by with handspike 20 temporarily to the back upper place pull-up, push downwards then, carriage 38 is rotated to clockwise direction in Fig. 5 with respect to back leg 14.Along with this operation, handrail 60 and side frame 40 rotate to clockwise direction in Fig. 5 with respect to union lever 30.By such operation, as shown in Figure 7, in side-looking, handspike 20 disposes with foreleg 12 almost parallel ground, and has reduced the allocation position of handspike 20.

Below like this, as shown in Figure 7, perambulator 10 is folded, and becomes compact size on fore-and-aft direction and above-below direction.In addition, for perambulator 10 is launched from folded state, as long as just passable according to the order opposite with above-mentioned folding operation.That is, if make carriage 38 with respect to back leg 14 in Fig. 7 anticlockwise motion and make handrail 60 thereupon and side frame 40 just passable with respect to union lever 30 anticlockwise motion in Fig. 7.

Then, mainly referring to figs. 1 through Fig. 3, describe anti-structure and the effect that sandwiches parts 70 in detail.Here, Fig. 1 is the partial perspective view of expression perambulator, and Fig. 2 is the exploded perspective view of Fig. 1, and Fig. 3 is the anti-figure that sandwiches the effect of parts of explanation.

At first, utilize Fig. 1 to Fig. 3 that handrail 60 is narrated in further detail.Particularly as shown in Figure 2, the cross section that handrail 60 is lower opening is U word shape roughly, has armrest body 62 that is made of top 63 and both sides 64,64 and a pair of extension 66,66 that rearward extends from the both sides 64 of armrest body 62.As shown in Figure 4, armrest body 62 extends along fore-and-aft direction.Extension 66 extends to the both sides of upper part of the union lever 30 at the rear that is disposed at armrest body 62 from the both sides 64 of armrest body 62.And, the binding parts (connection shaft) 68 of the upper part by connecting a pair of extension 66 and union lever 30, extension 66 rotates and is connected freely on the union lever 30.

As shown in Figure 1 to Figure 3, anti-sandwich parts 70 and constitute, will be in the gap that produces between union lever 30 and the handrail 60, more particularly, gap filling that will generation between the rear end 65 on the top 63 of union lever 30 and armrest body 62.In the present embodiment, anti-sandwich parts 70 have the installation portion 72 on the upper part that is embedded in the union lever 30 that constitutes by pipe and be configured in union lever 30 and handrail 60 between the gap in gap filling part 76.

Especially as shown in Figure 3, installation portion 72 is by as the cover 73 of the lid performance function that the top of union lever 30 is blocked be located at the below of cover and a pair of insertion portion 74 that is configured in the union lever constitutes.As shown in Figure 2, on each insertion portion 74, be formed with the hole 74a that inserts binding parts 68.Be inserted in the 74a of this hole by the binding parts 68 that will link handrail 60 and union lever 30, prevent that sandwiching parts 70 is supported under the state that is fixed on via installation portion 72 on the union lever 30.

On the other hand, the installation portion 72 of gap filling part 76 from the upper part that is embedded in union lever 30 hangs down along the face in the face of armrest body 62 sides of union lever 30.Gap filling part 76 is included in the arcuation part 77 that has the profile of arcuation among Fig. 3 that analyses and observe of expression and the turning cylinder quadrature of handrail 60 and union lever 30, and this arcuation part 77 is in the face of the rear end 65 on the top 63 of armrest body 62.As shown in Figure 3, this arcuation part 77 becomes along by the turning cylinder that links parts 68 regulations to be the shape of motion track of rear end 65 on the top 63 of center, handrail 60 armrest body 62 when rotating with respect to union lever 30.

Arcuation part 77 has certain thickness along Width, but on any position of Width, arcuation part 77 also preferably has along the cross section profile of the motion track of the rear end 65 of the armrest body of facing 62.In the case, arcuation part 77 has the cooresponding profile of profile with the Width of the rear end 65 of armrest body 62 along Width.As shown in Figure 2, corresponding along the profile phase that Width has linearity with the rear end 65 of armrest body 62 in the present embodiment, arcuation part 77 also has the profile of linearity along Width.

Then, to perambulator 10 from deployed condition (Fig. 6) when folding and the anti-effect that sandwiches parts 70 when folded state launches describe.

As described above, with perambulator 10 from deployed condition when folding, handrail 60 rotates with respect to union lever 30.Otherwise, with perambulator 10 when folded state launches, handrail 60 also rotates for union lever 30.And, as shown in Figure 3, under the situation that handrail 60 rotates with respect to union lever 30, between handrail 60 and union lever 30, produce the size variation in gap and this gap.This is to result from handrail 60 and the turning cylinder of union lever 30 not to be configured in the lip-deep phenomenon in the face of armrest body 62 sides of union lever 30.Thereby, for handrail 60 and union lever 30 are linked securely, under the situation on the center that the extension 66 of handrail 60 is connected union lever 30 (in the face of the center on the surface (surface of rear side) of the surface (surface of front side) of armrest body 62 sides and its opposition side), this phenomenon produces inevitably.

This gap produces between the surface of the rear end 65 on the top 63 of armrest body 62 and union lever 30.And, handrail 60 is being configured under the locational situation that links handrail 60 size in the gap maximum that becomes with respect to the straight line of the turning cylinder of union lever 30 and rear end 65 and the surperficial quadrature of union lever 30.And, owing to expose towards people folding or expansion perambulator 10 in this gap, so clothing or finger might be clamped in this gap.

On the other hand, in the present embodiment, the anti-parts 70 that sandwich of filling up this gap are supported on the upper part of union lever 30.And the anti-arcuation part 77 that is configured in the gap filling part 76 between armrest body 62 and the union lever 30 that sandwiches parts 70 exists, with the profile that has along the rear end 65 motion track in the analysing and observe of the turning cylinder quadrature of handrail 60.Thereby, arcuation part 77 is formed, make it fill up the gap change with respect to moving of union lever 30 because of handrail 60.Therefore, in folding operation or launch in the operation, can prevent that clothing etc. is clamped in the gap of generation between the armrest body 62 of handrail 60 and union lever 30.

More than, according to present embodiment, be bearing on the union lever 30, fill up the armrest body 62 of handrail 60 and the anti-parts 70 that sandwich in the gap between the union lever 30 being provided with on the perambulator 10.Thereby, can prevent from clothing etc. is clamped in the gap of armrest body 62 and union lever 30.

In addition, according to present embodiment, the anti-parts 70 that sandwich are supported by the upper part of the union lever 30 that is made of tubing, and the anti-parts 70 that sandwich also play function as the lid material of union lever 30.Anti-speech, prevent that sandwiching parts 70 is to make common employed lid material have the function of filling up the gap, the not increase of parts number of packages.

In addition, according to present embodiment, the anti-parts 70 that sandwich are by being fixed on handrail 60 and the binding parts (axle) 68 that union lever 30 links on the union lever 30.Thereby, can not increase the parts number of packages and the anti-parts 70 that sandwich are installed by simple sound construction ground.

And then according to present embodiment, the anti-parts 70 that sandwich have the arcuation part 77 that has the profile of arcuation on the cross section of the turning cylinder that is orthogonal to handrail 60 and union lever 30.And this arcuation part 77 has the profile of mobile route of rear end 65 of the armrest body 62 of the handrail 60 in rotate.Thereby arcuation part 77 can be corresponding to handrail 60 with respect to the variation of the size in the gap in the rotation of union lever 30 and fill up the gap.Thus, can prevent sandwiching of clothing etc. more reliably.

And then according to present embodiment, the anti-parts 70 that sandwich are made of the gap filling part 76 that is embedded into the installation portion 72 on the union lever 30 and hang down between the armrest body 62 of handrail 60 and union lever 30 from installation portion 72.Thereby perambulator single-piece size, the size that also has union lever 30 and handrail 60 can be than big usually, and can prevent sandwiching of clothing etc.

In addition, in the present embodiment, illustration anti-sandwich parts 70 by on the upper end that is embedded in union lever 30, be bonded parts 68 with union lever 30 and handrail 60 again and connect the example that supports and be fixed on the union lever 30, but be not limited to this.So long as be configured to the gap filling between handrail 60 and the union lever 30 just passable, can be by the anti-parts 70 that sandwich of the whole bag of tricks supporting.For example, also can be only by on the upper end that is embedded into union lever 30 and will to prevent sandwiching parts 70 fixing with union lever 30.Perhaps, can as describing in detail in the 2nd embodiment, not be embedded on the union lever 30 yet, connect, will prevent sandwiching parts 70 and be fixed on the union lever 30 and only be bonded parts 68 with union lever 30.

(1-2 embodiment)

Then, mainly utilize Fig. 8 to Figure 11, the 1-2 embodiment is described.

At Fig. 8 to the 1-2 embodiment shown in Figure 11, integral structure as perambulator, except having removed union lever 30 and having sandwiched the structure difference of parts 70, installation portion 72a, identical substantially with the 1-1 embodiment that utilizes Fig. 1 to Fig. 7 explanation at configuration handspike 20 on the position that union lever 30 is set originally and as anti-.Give identical Reference numeral for identical part and omit the detailed explanation of repetition.

In addition, Fig. 8 is the partial perspective view of expression perambulator 10, and Fig. 9 is the partial top view of expression perambulator 10, and Figure 10 is the block diagram of the schematic configuration of expression perambulator 10, and Figure 11 is the lateral plan of expression perambulator, the folded state of expression perambulator.Wherein, omitted the anti-parts 70 that sandwich among Figure 10 and Figure 11, Figure 10 and Figure 11 also are the integrally-built figure of the perambulator of expression the 4th embodiment described later.

As Figure 10 and shown in Figure 11, in the 1-2 embodiment, perambulator 10 possesses: pair of armrests 60,60; A pair of back leg 14,14 is that a pair of back leg 14,14 that links is freely rotated in handrail 60 and upper part separately, rotates respectively to keep wheel 16,16 freely; A pair of foreleg 12,12 is that a pair of foreleg 12,12 that links is freely rotated in handrail 60 and upper part separately, rotates respectively to keep wheel 16,16 freely; A pair of handspike 20,20 is handspikes 20 of extending of U word shape ground roughly, and the rear part of rotating freely with pair of armrests 60,60 links, and rotates freely the centre portion of back leg 14 and the two end portions of U word are roughly linked; A pair of side frame 40,40 is respectively with a pair of side frame 40,40 of two end portions bonded assembly of the roughly U word of the centre portion of foreleg 12 and handspike 20, rotates respectively to be attached at freely on foreleg 12 and the handspike 20.

In addition, extremely shown in Figure 11 as Figure 10, perambulator 10 also possesses a pair of carriage 38,38, is with the two end portions of the roughly U word of the centre portion of back leg 14 and the handspike 20 a pair of carriage 38,38 of bonded assembly respectively, rotates respectively to be attached at freely on back leg 14 and the handspike 20.Therefore, the below part of handspike 20 is rotated via this carriage 38 and is attached at freely on the centre portion of back leg 14.In addition, carriage 38 is consistent with the turning cylinder (center of turn) of side frame 40 with the turning cylinder (center of turn) and the handspike 20 of handspike 20.

As shown in figure 10, engage with carriage 38 and the Lock Part 32 of keeping deployed condition is located on the below part of handspike 20.This Lock Part 32 is located at the long-distance operating device 28 on the handspike 20 by operation and is moved upward along handspike 20, and thus, Lock Part 32 is disengaged with engaging of carriage 38.

Perambulator 10 in the present embodiment can be by folding and launch from folded state from deployed condition with the same method of the method that illustrates in above-mentioned 1-1 embodiment.That is, rotate with respect to back leg 14, and handrail 60 and side frame 40 are rotated with respect to handspike 20 by making carriage 38, can be with perambulator 10 folding or expansion.

As Fig. 8 and shown in Figure 9, anti-in the present embodiment sandwich parts 70 have the installation portion 72a that is attached on the handspike 20 and be configured in union lever 30 and handrail 60 between the gap in gap filling part 76.

Wherein, gap filling part 76 is structures same with the embodiment of above-mentioned 1-1.That is, gap filling part 76 is included in the profile that has arcuation in the analysing and observe of turning cylinder quadrature of expression and handrail 60 and handspike 20 and in the face of the arcuation part 77 of the rear end 65 on the top 63 of armrest body 62.And this arcuation part 77 is along to be the shape of motion track of rear end 65 on the top 63 of center, handrail 60 armrest body 62 during with respect to handspike 20 rotations by the turning cylinder that links parts 68 regulations.In addition, arcuation part 77 has the cooresponding profile of profile with the Width of the rear end 65 of armrest body 62 along Width, in illustrated embodiment, has the profile of linearity along Width.

On the other hand, as shown in Figure 9, installation portion 72a is by the pair of plate-shaped component set-up, and extend the both sides of handspike 20 that are configured in the rear of gap filling part 76 from two side direction of gap filling part 76.In addition, installation portion 72a is configured in the inboard of the extension 66 of handrail 60, is bonded parts (connection shaft) 68 with extension 64 and handspike 20 and connects.And by this perforation that links parts 68, installation portion 72a is fixedly supported upon on the handspike 20.

According to such present embodiment, also can bring into play the action effect same with above-mentioned 1-1 embodiment.

Promptly, according to present embodiment, owing in perambulator 10, be provided with and be subjected to handspike 20 supporting, fill up the armrest body 62 of handrail 60 and the anti-parts 70 that sandwich in the gap of handspike 20, be clamped in the gap between armrest body 62 and the handspike 20 so can prevent clothing etc.Particularly, according to present embodiment, anti-sandwich parts 70 and have the arcuation part 77 that has the profile of arcuation on the cross section of the turning cylinder that is orthogonal to handrail 60 and handspike 20, this arcuation part 77 has the profile of mobile route of rear end 65 of the armrest body 62 of the handrail 60 in rotate.Therefore, arcuation part 77 can be filled up the gap with respect to the variation of the size in the gap in the rotation of handspike 20 corresponding to handrail 60.Thus, can prevent sandwiching of clothing etc. more reliably.

In addition, according to present embodiment, because the anti-parts 70 that sandwich prevent sandwiching parts 70 by handrail 60 and the binding parts (axle) 68 that handspike 20 links are fixed on the handspike 20 so can install securely, assembling also can be carried out easily.

And then, according to present embodiment, prevent that sandwiching parts 70 is bearing on the handspike 20 via the tabular installation portion 72a between the extension 66 that is configured in handspike 20 and handrail 60.Thereby, can not change the shape of handspike 20 and handrail 60 significantly and prevent sandwiching of clothing etc.

(1-3 embodiment)

Then, mainly utilize Figure 12 to Figure 14, the 1-3 embodiment is described.

At Figure 12 to the 1-3 embodiment shown in Figure 14, except the anti-structure that sandwiches parts 80 be used for supporting the anti-structure that sandwiches parts 80 different, identical substantially with the 1-1 embodiment that utilizes Fig. 1 to Fig. 7 explanation.Give identical Reference numeral for identical part and omit the detailed explanation of repetition.

In addition, Figure 12 is the partial perspective view of expression perambulator 10, and Figure 13 is the part sectional view of expression perambulator 10, and Figure 14 is the anti-figure that sandwiches the effect of parts 80 of explanation.

In Figure 12 to Figure 14, omitted the integral structure of perambulator 10, but the integral structure of the perambulator in the present embodiment is being except being provided with supporting and sandwiching the mechanism of parts 80 towards union lever 30 pushing is anti-on the handrail 60, and is roughly the same with the integral structure of the perambulator of the 1-1 embodiment that mainly utilizes Fig. 4 to Fig. 7 explanation.

As shown in figure 13, anti-in the present embodiment sandwich parts 80 by roughly forwards, backwards the sliding part 86 that constitutes by sheet material that extends of direction, be located at sliding part 86 the rear end on and the carrier 84 that constitutes by sheet material that extends along above-below direction roughly and the upper end that is located at carrier 84 and constitute along the pushing portion 82 that constitutes by sheet material that fore-and-aft direction roughly extends.On the other hand, on the armrest body 62 of handrail 60, be formed with the track 88 of accepting the anti-sliding part 86 that sandwiches parts 80 from the below and be arranged on and track 88 opposed locational protrusions 89 across sliding part 86.

Track 88 is erected between the counter-lateral quadrents 64 of armrest body 62, by roughly forwards, backwards the sheet material that extends of direction constitute.The front end of track 88 is connected on the top 63 of armrest body 62.On the other hand, protrusion 89 is made of the sheet material that hangs down along above-below direction roughly from top, disposes the anti-sliding part 86 that sandwiches parts 80 between its end and track 88.Thereby the anti-sliding part 86 that sandwiches parts 80 is supported from the below sliding freely along fore-and-aft direction by track 88, and is subjected to protrusion 89 to limit moving of direction up and down.

In addition, as shown in figure 13, above the anti-sliding part 86 that sandwiches parts 80, between the protrusion 89 of anti-carrier 84 that sandwiches parts 80 and handrail 60, be provided with compression spring 90.By this spring 90 to the direction of leaving protrusion 89 to carrier 84 application of forces.

As Figure 13 and shown in Figure 14, the rear part of the armrest body 62 of handrail 60 is along roughly fore-and-aft direction and track 88 almost parallel ground extend.And, the anti-sliding part 86 that sandwiches parts 80 is configured on the track 88, sandwich under the situation that parts 80 slide with respect to handrail 60 anti-, the anti-pushing portion 82 that sandwiches parts 80 the rear end 65 of armrest body 62 near and the rear part almost parallel of armrest body 62 move.In addition, as shown in figure 12, the anti-end profile that sandwiches the pushing portion 82 of parts 80 has the profile corresponding shape with the union lever of facing 30.In the present embodiment, to have a roughly circular-arc profile phase corresponding with union lever 30, and the end profile of pushing portion 82 has circular-arc recess.

In above such perambulator that constitutes 10, even when handrail 60 rotates with respect to union lever 30, between handrail 60 and union lever 30, produced the gap, also as shown in figure 14, the anti-parts 80 that sandwich are arranged on anti-spring 90 pushings that sandwich between parts 80 and the handrail 60, extend from the rear end 65 of armrest body 62, up to being connected on the union lever 30.Thereby, can fill up gap by the anti-parts 80 that sandwich in generation between the rear end 65 of armrest body 62 and the union lever 30.Therefore, can prevent in folding operation or launch clothing in the operation etc. and be clamped in the gap of generation between the armrest body 62 of handrail 60 and union lever 30.

More than, according to present embodiment, be provided with and be bearing on the handrail 60 sliding freely and be subjected to anti-the sandwich parts 80 of spring 90 towards the union lever application of force.Thereby, can prevent that clothing etc. is clamped in the gap between armrest body 62 and the union lever 30.Particularly, owing to anti-sandwich parts 80 and be subjected to spring 90 application of forces, so even variation has taken place the size in gap during handrail 60 rotates, the anti-parts 80 that sandwich also can be outstanding and up to abutting on the union lever 30 from handrail 60.Thereby, can sandwich the gap filling of parts 80 by anti-with size variation, can prevent sandwiching of clothing etc. thus more reliably.

In addition, according to present embodiment, the anti-anti-mechanism that sandwiches parts 80 of parts 80 and supporting and pushing that sandwiches is configured in (in the opening portion) in the handrail 60.In addition, they are owing to be made of very simple structure, thus the size of perambulator single-piece size and union lever 30 and handrail 60 is become than big usually, and can prevent sandwiching of clothing etc.

And then according to present embodiment, when preventing that sandwiching parts 80 slides with respect to handrail 60, the 62 extended anti-pushing portions 82 that sandwich parts 80 move near the rear end 65 on the top 63 of armrest body 62 from armrest body.Thereby, can prevent that also clothing etc. is clamped into the rear end 65 and anti-the sandwiching between the protrusion 82 of parts 80 of armrest body 62.

And then according to present embodiment, the anti-end profile in the face of union lever 30 that sandwiches the pushing portion 82 of parts 80 has the profile corresponding shape with the union lever of facing 30.Thereby, can sandwich parts 80 more reliably with the gap filling between armrest body 62 and the union lever 30 by anti-.

In addition, different with above-mentioned 1-1 embodiment in the present embodiment, prevent that sandwiching parts 80 is bearing on the handrail 60.Thereby, as shown in figure 14, on the upper part of the union lever 30 that constitutes by tubing, be provided with and cover material 31.

In addition, in the present embodiment, represented the example that track 88 is made of the sheet material of 64,64 of the both sides that are erected at armrest body 62, but be not limited to this, anti-ly sandwiched parts 80, can carry out various changes as long as can support sliding freely.For example, track also can by from the both sides 64,64 of armrest body 62 mutually facing to outstanding and a pair of elongate component set-up that extend along fore-and-aft direction roughly to the inside.

(1-4 embodiment)

Then, mainly utilize Figure 15, the 1-4 embodiment is described.

1-4 embodiment shown in Figure 15 is the anti-anti-mechanism that sandwiches parts 80 of parts 80 and supporting and pushing that sandwiches that has made up the 1-3 embodiment that mainly utilizes Figure 12 to Figure 14 explanation in the integral structure of the perambulator 10 of the 1-2 embodiment that mainly utilizes Figure 10 and Figure 11 explanation.Thereby, in Figure 15, give the Reference numeral identical for identical part with the Reference numeral that in Fig. 1 to Figure 14, uses, and, omit the detailed explanation that repeats for the integral structure of the perambulator that in the 1-2 embodiment, illustrates and the anti-anti-mechanism that sandwiches parts 80 of parts 80 and supporting and pushing that sandwiches that in the 1-3 embodiment, illustrates.

As shown in figure 15, handrail 60 rotates and is attached at freely on the handspike 20, anti-ly sandwiches parts 80 and is bearing in sliding freely on the handrail 60, is located at handrail 60 and pushes towards handspike 20 with the anti-spring 90 that sandwiches between the parts 80.

In such present embodiment,, can prevent reliably that clothing etc. is clamped in the gap of armrest body 62 and handspike 20 by being bearing on the handrail 60 sliding freely and being subjected to the anti-parts 80 that sandwich of spring 90 towards handspike 20 application of forces.Particularly, owing to prevent that sandwiching parts 80 is subjected to spring 90 application of forces, even variation has taken place the size in gap during handrail 60 rotates, the anti-parts 80 that sandwich also can be outstanding up to abutting on the handspike 20 from handrail 60.Thereby, can sandwich the gap that parts 80 are filled up size variation by anti-, can prevent sandwiching of clothing etc. thus more reliably.

In addition, according to present embodiment, be provided with the anti-anti-mechanism that sandwiches parts 80 of parts 80 and supporting and pushing that sandwiches in the inboard of handrail 60 (opening portion).And, because they are made of very simple structure, thus the size of perambulator single-piece size and handspike 20 and handrail 60 is become than big usually, and can prevent sandwiching of clothing etc.

And then according to present embodiment, when preventing that sandwiching parts 80 slides with respect to handrail 60, the 62 extended anti-pushing portions 82 that sandwich parts 80 move near the rear end 65 on the top 63 of armrest body 62 from armrest body.Thereby, can prevent reliably that also clothing etc. is clamped into the rear end 65 and anti-the sandwiching between the protrusion 82 of parts 80 of armrest body 62.

And then according to present embodiment, the anti-end profile in the face of handspike 20 that sandwiches the pushing portion 82 of parts 80 has the profile corresponding shape with the handspike of facing 20.Thereby, can sandwich parts 80 more reliably with the gap filling between armrest body 62 and the handspike 20 by anti-.

The 2nd embodiment

With reference to the accompanying drawings the 2nd embodiment of the present invention is described.

At first, by Figure 16 to Figure 21 the perambulator 190 of the protection arm 118 of having assembled perambulator according to the present invention is described.

Figure 16 is the block diagram of the schematic configuration of expression perambulator of the present invention, and Figure 17 is its vertical profile lateral plan, and perambulator 190 has: pair of right and left foreleg 112 has front-wheel 111; Pair of right and left back leg 114 has trailing wheel 113; Handspike 115 bends to roughly U word shape; Pair of right and left handrail 116; About 2 pipes 117, respectively extend in parallel to each other the pivotal mounting rear end that this handrail 116.

On above-mentioned handrail 116, the top ends of foreleg 112 and back leg 114 is installed at its leading section head lamp brush guard pivot.About foreleg 112 link stay 122 by the foreleg of double as toe board and link, about back leg 114 link stay 123 by back leg and link.On above-mentioned back leg 114, by the bottom that axle 119a pivotal mounting the carriage 119 of L word shape, the intermediate portion is pivotally mounted on the bottom of aforementioned tube 117 by axle 130.Promptly, on the bottom of the pipe 117 about above-mentioned, by axle 130 pivotal mounting framework installing component 131 (Figure 18) is arranged in mutual opposed inner face side respectively, and then, on this axle 130, the bottom that the handspike 115 of U word shape with carriage 119 pivotal mounting that are configured in pipe 117 the outside.

About the midway location of foreleg 112 on respectively pivotal mounting the leading section of side frame 124, the front end of the side frame 124 about this is linked stay 132 by preceding upper lateral part and links.In addition, the rearward end of above-mentioned side frame 124 is fixedly connected on the midway location of said frame installing component 131.On framework installing component 131, with respect to the captive joint position of above-mentioned side frame 124 with above-mentioned axle 130 opposition side lower positions on the outstanding stay installation portion 131a that is provided with, captive joint back upper lateral part and is linked stay 133 on this stay installation portion 131a, by this back upper lateral part link stay 133 with about framework installing component 131 link mutually.On the other hand, on the framework installing component 131 about above-mentioned, link between the stay 133 at above-mentioned axle 130 and back upper lateral part, the left and right sides leading section that the back of the body that forms with the word of falling U shape supports portion's Supporting fixture 134 by axle 135 pivotal mounting, the back of the body of the word of falling U shape supports portion's Supporting fixture 134 and with respect to said frame installing component 131 (Figure 18) is installed swingably.

On the bottom of pipe 117, the Lock Part 120 that engages, keeps this deployed condition under the deployed condition of perambulator with the free end of above-mentioned carriage 119 is installed slidably.On the other hand, on handspike 115, the latch-release parts 138 of long-distance operating device 137 operations that are located on the handspike 115 are installed slidably along handspike 115.If by above-mentioned long-distance operating device 137 with above-mentioned latch-release parts 138 pull-ups, then via being located at the unlocking lever 139 on the latch-release parts 138 and being located at action plate 140 on the Lock Part 120 with Lock Part 120 pull-up upward, the locking of carriage 119 is disengaged, can make the perambulator main body become 2 folding states, so that foreleg 112 and back leg 114 become the state of almost parallel.

In addition, at handrail 116 and manage and be installed with on 117 the lateral surface to laterally outstanding locking protrusion 141 (only represented one), on handspike 115, be equipped with slidably along handspike 115 and have the latch for printed circuit 142 that is engaged to the recess on the above-mentioned locking protrusion 141, by with the pull-up upward of above-mentioned latch for printed circuit 142, with latch for printed circuit 142 from locking protrusion 141 liberation, make handspike 115 rearward or the place ahead swing, can make handspike 115 become opposite pushing state or back side pushing state.

Link the seat portion Supporting fixture that stay 132 constitutes U word shapes by the side frame about above-mentioned 124,124 and with the preceding upper lateral part that their leading section links, on the part that portion's Supporting fixture 134 surrounds, be equipped with lower seat base-material 146 by the above-mentioned seat portion's Supporting fixture and the back of the body.That is, on the side frame 124 about above-mentioned lower seat is installed in the both side edges portion of the 146a of seat portion of base-material 146, and the front-end edge portion of the 146a of seat portion be installed in before upper lateral part link on the stay 132.The back of the body that is connected on the above-mentioned seat 146a of portion is installed in the back of the body on the 134a of side frame portion about portion's Supporting fixture 134 to the both side edges portion of the 146b of portion.And then, the end edge portion that the back of the body supports the 146b of portion be installed in the above-mentioned back of the body support portion's Supporting fixture 134 about the 134b of horizon bar portion that links of the 134a of side frame portion on, above-mentioned lower seat is opened with tensioning state on fore-and-aft direction and left and right directions with base-material 146 and is established.And, sewing up lower seat tension part 147 opening the lower seat be located on portion's Supporting fixture rear side with the 146a of seat portion of base-material 146.The leading section of this lower seat tension part 147 is located at the pivotal mounting axle 135 that supports portion's Supporting fixture 134 than the back of the body and links on the stay 133 (Figure 17) by the back upper lateral part on the lower position being installed under the deployed condition of perambulator.So the 146a of seat portion of above-mentioned lower seat is also stretched rearward by lower seat tension part 147, becomes the state that is stretched from the four directions, can make lower seat become tensioning state more reliably with base-material 146.

In addition, opening the rear side that the back of the body be provided with lower seat 146 supports portion's Supporting fixture 134, disposing gradient on the pipe 117 about being fixedly connected on and open to establish and be with 148, opening the length of establishing, can regulate the angle of inclination that the back of the body supports the 146a of portion with 148 by regulating this gradient.

Like this, be set as tensioning state, can keep the rigidity of lower seat, can not need the such sheet material of perambulator in the past, can realize lightweight by lower seat is opened on fore-and-aft direction and left and right directions with base-material 146.And, because back upper lateral part binding stay 133 is located at than the back of the body and supports the pivot of portion's Supporting fixture 134 by lower position, so even lower seat is crooked under newborn child's deadweight effect with base-material 146, buttocks can not run into above-mentioned back upper lateral part yet and link on the stay 133, can not produce sense of discomfort.

On the other hand, as shown in figure 18, will manage 117 and the axle 130 that links of framework installing component 131 on, pivotal mounting the leading section of side plate 150 of the newborn child's of protection sidepiece.In addition; as shown in figure 19; linking the above-mentioned back of the body on the 134b of horizon bar portion of the 134a of side frame portion about portion's Supporting fixture 134; portion is provided with bearing 151,151 about it; on this bearing 151,151, the bottom of the headrest (head rest) 152 of the head of protecting newborn child by axle 153 pivotal mounting.And then the outstanding pin 154 that is provided with in the one of the left and right sides of above-mentioned headrest 152, this pin 154 are fastened in the slotted hole 155 on the rearward end that is formed at above-mentioned side plate 150.

To be expression support the figure that the state that newborn child lies down is toppled over, made to portion's Supporting fixture 134 with the above-mentioned back of the body to Figure 18, and headrest 152 becomes with respect to the above-mentioned back of the body and supports the state that hold up upward on the plane of portion's Supporting fixture 134.So, open the length of establishing if regulate above-mentioned gradient with 148, increase the angle of inclination of the above-mentioned back of the body as shown in Figure 20 to portion's Supporting fixture 134, then side plate 150 also tilts to move thereupon upward, by engaging of pin 154 and slotted hole 155, headrest 152 is that swing to clockwise direction in Figure 18 at the center with axle 153, and headrest 152 supports portion's Supporting fixture 134 with the back of the body becomes same plane substantially.On the other hand, under state shown in Figure 20, open to establish and be with 148 if loosen gradient, then side plate 150 supports portion's Supporting fixture 134 with the back of the body and swing downwards, and resting the head on 152 becomes state shown in Figure 180 thereupon swinging upward, can protect newborn child's head.

In addition, under the situation of states of making above-mentioned 2 foldings, after making side plate 150 support portion's Supporting fixture 134 to become state shown in Figure 20, be located at long-distance operating device 137 on the handspike 115 by operation with the back of the body, can be similarly folding with perambulator in the past.The back of the body of this folded state of expression supports the state of portion's Supporting fixture 134 and side plate 150 etc. among Figure 21.

Then, by Figure 16 and Figure 22 to Figure 25 the protection arm 118 of perambulator of the present invention is illustrated in greater detail.

Here, Figure 22 to Figure 25 is the figure of the explanation of expression protection arm 118.

As Figure 16 and shown in Figure 22, protection arm 118 extensions of perambulator of the present invention are configured between the pair of armrests 116 of perambulator, and are made of the centre part 185 that is attached at the pair of end portions 180 on the pair of armrests 116 and be located between the pair of end portions 180.

As Figure 16, Figure 22 and shown in Figure 23; centre part 185 extends between pair of armrests 116, and has resilient core part 170, is provided with and the soft a pair of soft parts 161 and be located on the outer surface of each soft parts 161 and protect the guard block 162 of soft parts 161 than core part 170 across core part 170.

Wherein, core parts 170 as shown in figure 23, the soft resinoid parts 171 that are configured on the polypropylene tape 172 constitute by polypropylene tape (hard parts) 172, side by side.Wherein, soft resinoid parts 171 are made of soft resinoid parts 171a and soft resinoid parts 171b, are 2 layers of structures.

In addition, as shown in figure 23, on the outer surface of guard block 162, be provided with removable outer dress base-material 163.

In addition, as shown in figure 24, be provided with core part 170 and a pair of soft parts 161 discretely, core part 170 and soft parts 161 are unfixing by lining cement etc.

That is, as shown in figure 24, each soft parts 161 protected parts 162 covers outer surface, and each soft parts 161 is installed on the core part 170 across guard block 162.

In the case, each soft parts 161 protected parts 162 covers the outside, guard block 162 from the sidepiece of soft parts 161 to the inside around going into.Therefore, between core parts 170 and each soft parts 161, be folded with guard block 162, between each soft parts 161 and core parts 170, be formed with space 161a, 161a.In addition, the both sides of core parts 170 and outside dress also form space 170a, 170a between with base-material 163.

Then, the effect to the present embodiment that is made of this structure describes.

As mentioned above, the core part 170 of protection arm 118 is made of the polypropylene tape 172 and the soft resinoid parts 171 of configuration arranged side by side.Wherein, polypropylene tape 172 is parts of harder hard, and soft resinoid parts 171 have elasticity.Therefore, the hardness that protection arm 118 can pass through the polypropylene tape 172 of core part 170 realizes suitable intensity, and can will act on trying hard to recommend back on the polypropylene tape 172 by the soft resinoid parts 171 of core part 170, be used on the polypropylene tape 172 so can prevent excessive masterpiece, can improve the durability of protection arm 118.

Like this, by use the soft resinoid parts 171 of rubber-like with polypropylene tape 172, can improve the durability of protection arm 118 effectively.In addition, general in light weight than polypropylene tape 172 of the weight of soft property resin component 171.Therefore, compare, can alleviate the weight of protection arm 118 with the situation that the thicker polypropylene tape of used thickness 172 improves the durability of protection arms 118.

In addition, because core part 170 is made of harder polypropylene tape 172 that is set up in parallel and the soft property of rubber-like resin component 171, so even make protection arm 118 up-and-down movement repeatedly, the shape of protection arm 118 also can not be out of shape and be kept certain shape.

Promptly, under the situation of only using polypropylene tape 172 as core part 170, owing in polypropylene tape 172, do not have elasticity, if so make protection arm 118 up-and-down movement repeatedly, then the shape of protection arm 118 is from original warpage, but as present embodiment, by using the core part 170 that constitutes by polypropylene tape 172 and soft property resin component 171, because the elasticity of soft property resin component 171, protection arm 118 can be from original warpages and keep shape between can be for a long time.

In addition, because soft parts 161 have soft property than core part 170, so feeling when holding protection arm 118 improved.In addition, because soft parts 161 are from outside supporting core part 170, so can strengthen mainly the durability and the elasticity of the protection arm 118 that obtains by core part 170.

In addition, as shown in figure 23, dress base-material 163 outside on the outer surface of guard block 162, being provided with.Therefore, the hand sense of touch of protection arm 118 is improved.In addition and since outer dress with base-material 163 be dismounting freely, so can easily change the outward appearance of protection arm 118.

In addition, as shown in figure 24, around core part 170, soft parts 161 and guard block 162 are covered with base-material 163 by outer dress, and pushed from the outside with base-material 163 by outer dress.In addition, not bonding between core part 170 and the soft parts 161 by lining cement etc., and soft parts 161 are installed on the core part 170 with the state that separates via the guard block 162 of the inboard that is wound up into soft parts 161.Therefore, make under protection arm 118 situation that direction moves up and down (with reference to Figure 25), soft parts 161 can freely slide on core part 170, can prevent from soft parts 161 are applied excessive burden.

In addition, as shown in figure 24, soft parts 161 protected parts 162 cover outer surface, and soft parts 161 clip guard block 162 and are installed on the core part 170.Like this, can clamping guard block 162 by guard block 162 being clipped between soft parts 161 and the core part 170, break away from from soft parts 161 so can prevent guard block 162.

Then, utilize Figure 26, the variation of protection arm 118 is described.

In the variation of protection arm shown in Figure 26 118, replacement is by polypropylene tape 172 and be configured in the core part 170 that the soft property resin component 171 on the polypropylene tape 172 constitutes side by side, the core part 170 that use is made of soft property resin component 171 and a pair of polypropylene tape 172 that clips soft property resin component 171 settings, other are identical substantially to embodiment shown in Figure 25 with Figure 22.

In variation shown in Figure 26, for giving identical Reference numeral and omit detailed explanation to the identical part of embodiment shown in Figure 25 with Figure 22.

As shown in figure 26, clip soft property resin component 171, a pair of polypropylene tape 172 is set on the two sides of soft property resin component 171.Therefore, can make the force balance that is applied on the core part 170 be distributed to soft property resin component 171 well and be located at each polypropylene tape 172 on the two sides of soft property resin component 171.Therefore, can further improve the durability of protection arm 118, and can prevent from reliably to make protection arm 118 from original warpage because of up-and-down movement repeatedly.

According to the present invention, even can provide light and durability is high, having repeated use can be from the protection arm of the perambulator of the constancy of original alteration of form between long-term yet.

The 3rd embodiment

Figure 27 be expression make seat itself that above-mentioned newborn child takes with respect to the dismounting of perambulator main body freely, this seat can be changed to selectively figure to the schematic configuration of the perambulator of surface state or back side state.Perambulator 210A possesses perambulator main body 210, and this perambulator main body 210 has: the foreleg 212 of pair of right and left, the front-wheel 211 with dicycly; The back leg 214 of pair of right and left has the trailing wheel 213 that is made of single-wheel; Handspike 215 is with U word sigmoid roughly; The handrail 216 of pair of right and left; Double as is that the front side of toe board links parts 217.Respectively pivotal mounting an end of handrail 216 on each front portion about above-mentioned handspike 215, at the other end head lamp brush guard pivot of this each handrail 216 foreleg 212 is installed.In addition, about the upper end of back leg 214 be pivotally mounted on the pars intermedia of handrail 216, on the pars intermedia of the back leg 214 about this, the hooking sheet 215a that can be located on the above-mentioned handspike 215 is installed with advancing and retreat.On the other hand, the back leg 214 about above-mentioned is linked parts 218 by rear side and links, about foreleg 212 linked parts 217 by the front side and link.And then, at the pars intermedia head lamp brush guard pivot of each foreleg 212 front end of union lever 219 being installed, the rear end of this union lever 219 is pivotally mounted in respectively pivotal mounting on the pars intermedia of the carriage of the L word shape on handspike 215 and the back leg 214.

On above-mentioned perambulator main body 210, be fastened on the handrail 216 from the top mounting by the 222a of armrest portion infant seat 221, mounting is being fixed infant seat 221.So,, can become from the hand push state at newborn child's the back side or the hand push state on opposite by selectively above-mentioned infant seat 221 back to front being installed on the perambulator main body 210.

In addition, in Figure 28, Reference numeral 230 is the drg bearings on the bottom of the back leg 214 about being installed in respectively.About drg bearing 230 (only represented in the drawings one) on, be separately installed with 1 axletree of rear wheel 231.That is, the plastic tubular collar 232 is installed on axletree of rear wheel 231, this axletree of rear wheel 231 inserts and is installed in the axis hole 233 of above-mentioned drg bearing 230.The barrel-contoured collar 232 is positioned on the end of above-mentioned axletree of rear wheel 231, from about the mutual opposed side of drg bearing 230 outstanding.On the axletree of rear wheel 231 outstanding, as shown in figure 29, the trailing wheel 213 that is made of single-wheel is installed from the another side of above-mentioned drg bearing 230.

On the other hand, on above-mentioned drg bearing 230, with the barrel-contoured collar 232 position adjacent outstanding from above-mentioned drg bearing 230 on, form the outstanding binding of oriented and these collar 232 parallel directions with teat 234.In above-mentioned binding with on the side of teat 234, be provided be fastened on be formed at about the connecting piece 235 that links of drg bearing 230 on connecting hole 236 in pawl 237.Above-mentioned connecting piece 235 forms with the tubular of substantially elliptical, on the other hand, constitute the part of oval outer rim from the outstanding barrel-contoured collar 232 of drg bearing 230 and the binding adjacent with this collar 232 with teat 234, connecting piece 235 has and the cooresponding oval inner edge of this ellipse outer rim.

So, after being installed in axletree of rear wheel 231 insertions in the drg bearing 230 as described above, be pressed into the end of connecting piece 235 with teat 234 from the outstanding barrel-contoured collar 232 of drg bearing 230 and the binding adjacent with this collar 232, be fastened in the connecting hole of being located on the connecting piece 235 236 with the pawl on the teat 234 237 by making to be formed to link, by connecting piece 235 with about drg bearing 230 link mutually.

Like this, in the present embodiment, owing to the barrel-contoured collar 232 that is installed on the axletree of rear wheel 231 is pressed in the connecting piece 235, so can prevent the generation of the vibration noise of 235 ones of connecting pieces by this collar 232.In addition, by make be formed at link with the pawl on the teat 234 237 be engaged in the connecting hole of being located on the connecting piece 235 236 and with about drg bearing 230 link mutually.Therefore, connecting piece 235 with about the binding of drg bearing 230 in do not need to use special binding parts, can realize the reduction and the lightweight of parts number of packages.

In addition, in the above-described embodiment, represented to be applied to before and after infant seat can being changed towards and be installed in the perambulator on the perambulator main body, but so long as about trailing wheel just passable by the perambulator that single-wheel constitutes, certain perambulator of type come what may can both be suitable for.

The present invention as described above, the axletree that axle is being supported the trailing wheel that is made of single-wheel is installed in the bearing of the pair of right and left on the back leg about being installed on respectively, by connecting piece the drg bearing about above-mentioned is linked.Therefore, axletree of rear wheel can be made one-sided each one, can be by rectangular axletree of rear wheel in the past only be provided with 1 with quantification in light weight.And then, owing to only by connecting piece the drg bearing about above-mentioned is linked, can expendable weight so compare with binding parts in the past.

Claims (22)

1, a kind of Collapsible pushchair is characterized in that, possesses:

Handrail;

Foreleg and back leg, rotation is attached on the handrail freely;

Union lever, rotation is attached on handrail and the back leg freely;

Prevent sandwiching parts, be bearing on handrail or the union lever, the gap filling between handrail and the union lever.

2, perambulator as claimed in claim 1 is characterized in that,

Handrail has armrest body and extends from the rear end of armrest body and rotate the extension that is connected freely on the union lever;

Prevent sandwiching parts with the rear end of armrest body and the gap filling between the union lever.

3, perambulator as claimed in claim 1 is characterized in that, prevents sandwiching the upper end that parts are embedded in union lever, is bonded the bar supporting.

4, perambulator as claimed in claim 1 is characterized in that, the anti-parts that sandwich are fixed on the union lever by the binding parts with handrail and union lever binding.

5, as claim 3 or 4 described perambulators, it is characterized in that, anti-sandwich parts have with the cross section of the turning cylinder quadrature of handrail and union lever on have the part of the profile of arcuation.

6, perambulator as claimed in claim 1 is characterized in that, prevents that sandwiching parts is bearing on the handrail sliding freely, is pushed to union lever by spring.

7, perambulator as claimed in claim 6 is characterized in that, the anti-track that sandwiches parts of supporting sliding freely is formed on the handrail.

8, a kind of Collapsible pushchair is characterized in that, possesses:

Handrail;

Foreleg and back leg, rotation is attached on the handrail freely;

Handspike, rotation is attached on handrail and the back leg freely;

Prevent sandwiching parts, be bearing on handrail or the handspike, the gap filling between handrail and the handspike.

9, perambulator as claimed in claim 8 is characterized in that,

Handrail has armrest body and extends from the rear end of armrest body and rotate the extension that is connected freely on the handspike;

Prevent sandwiching parts with the rear end of armrest body and the gap filling between the handspike.

10, perambulator as claimed in claim 8 is characterized in that, the anti-parts that sandwich are fixed on the handspike by the binding parts with handrail and handspike binding.

11, perambulator as claimed in claim 10 is characterized in that, anti-sandwich parts have with the cross section of the turning cylinder quadrature of handrail and handspike on have the part of the profile of arcuation.

12, perambulator as claimed in claim 8 is characterized in that, prevents that sandwiching parts is bearing on the handrail sliding freely, is pushed to handspike by spring.

13, perambulator as claimed in claim 12 is characterized in that, the anti-track that sandwiches parts of supporting sliding freely is formed on the handrail.

14, a kind of protection arm of perambulator extends between the pair of armrests of perambulator and disposes, and is made of the centre part that is attached at the pair of end portions on the pair of armrests and be located between pair of end portions, it is characterized in that,

Centre part possesses:

The core part is extended between pair of armrests, and has elasticity;

A pair of soft parts clip core and partly are provided with, and are more soft than core part;

Guard block is located on the outer surface of each soft parts, and protects soft parts;

Core part is by the hard parts and be configured in soft resinoid component set-up on the hard parts side by side.

15, the protection arm of perambulator as claimed in claim 1 is characterized in that, the hard parts are made of polypropylene tape.

16, the protection arm of perambulator as claimed in claim 1 is characterized in that, is provided with dismounting outer dress base-material freely on the outer surface of guard block.

17, the protection arm of perambulator as claimed in claim 1 is characterized in that, the core part is provided with a pair of soft isolation of components.

18, the protection arm of perambulator as claimed in claim 1 is characterized in that,

Each soft parts covers outer surface by guard block;

Each soft parts clips guard block and is installed on the core part.

19, a kind of perambulator is characterized in that, possesses:

A pair of back leg;

The drg bearing is installed on each back leg;

Axletree is installed on each drg bearing;

Trailing wheel is installed on the outboard end of each axletree, is made of single-wheel;

Connecting piece extends between each drg bearing, and each drg bearing is linked.

20, perambulator as claimed in claim 19, it is characterized in that, on the medial end of each axletree the collar is installed, and is provided with to link on the inside face of each drg bearing and uses teat, the binding of the collar of each axletree and each drg bearing is entrenched in the connecting piece end with teat.

21, perambulator as claimed in claim 20 is characterized in that, the binding of each drg bearing constitutes the part of oval outer rim with the collar of teat and each axletree, and connecting piece has and the cooresponding oval inner edge of this ellipse outer rim.

22, perambulator as claimed in claim 20 is characterized in that, the binding of each drg bearing has pawl with teat, is provided with the connecting hole of this pawl engaging on the connecting piece end.

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