JPH11348789A - Handcart - Google Patents
HandcartInfo
- Publication number
- JPH11348789A JPH11348789A JP10163301A JP16330198A JPH11348789A JP H11348789 A JPH11348789 A JP H11348789A JP 10163301 A JP10163301 A JP 10163301A JP 16330198 A JP16330198 A JP 16330198A JP H11348789 A JPH11348789 A JP H11348789A
- Authority
- JP
- Japan
- Prior art keywords
- pair
- rod
- leg
- pivoting means
- pivotally
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 210000001364 upper extremity Anatomy 0.000 claims description 69
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005728 strengthening Methods 0.000 abstract description 5
- 230000010355 oscillation Effects 0.000 abstract 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 9
- 230000000630 rising effect Effects 0.000 description 9
- 229910052709 silver Inorganic materials 0.000 description 9
- 239000004332 silver Substances 0.000 description 9
- 238000013459 approach Methods 0.000 description 7
- 230000003213 activating effect Effects 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000004913 activation Effects 0.000 description 4
- 239000012190 activator Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H2201/00—Characteristics of apparatus not provided for in the preceding codes
- A61H2201/01—Constructive details
- A61H2201/0161—Size reducing arrangements when not in use, for stowing or transport
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
- A61H3/04—Wheeled walking aids for patients or disabled persons
Landscapes
- Handcart (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
- Rehabilitation Tools (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、シルバーカー又は
ベビーカー等に使用される手押し車に関し、特に、前後
方向及び幅方向の双方向に折り込み可能な手押し車に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheelbarrow used for a silver car, a stroller, and the like, and more particularly to a wheelbarrow that can be folded in both the front-rear direction and the width direction.
【０００２】[0002]
【従来の技術】脚腰等が幾分弱くなった年配者が路上を
安全に歩行するための補助具として、手押し車（通常、
シルバーカー又は老人車と呼称されている）が、近年、
広く使用されるようになってきている。それに伴い、多
くの種類の手押し車が発表されている。例えば、安全に
路上を歩行するための歩行補助機能を具備する以外に、
歩行中疲れたときにはどこにおいてでも腰をおろして休
むことが可能なように座部を備えたもの、ショッピング
カーとしても使用出来るように買い物を収納出来る収納
スペースを備えたもの、等がある。2. Description of the Related Art Wheelchairs (usually, wheelchairs) are used as an aid for elderly people who have weakened legs and the like to walk safely on the street.
Silver cars or old-aged cars)
It is becoming widely used. Accordingly, many types of wheelbarrows have been announced. For example, besides having a walking assist function for walking safely on the street,
There are seats provided with a seat so that the user can sit down and take a rest anywhere when he / she is tired during walking, and a machine provided with a storage space capable of storing shopping so that it can be used as a shopping car.
【０００３】これらのシルバーカーは、不使用時には、
これを僅かなスペースへ収納可能なように、多くのベビ
ーカーの場合と同様に、出来るだけ小さな形状となるよ
うに折り畳み可能な構成となっていることが望ましい。
しかしながら、これまでのシルバーカーでは、これを折
り畳むとき、前後方向への折り畳みは可能であっても、
幅方向への折り畳みはほとんど出来なかった。それは、
シルバーカーを使用する者の体重が、通常、ベビーカー
における幼時の体重に比較して、かなり重く、シルバー
カーの構造を例えば少なくとも１００Ｋｇ程度の荷重ま
で耐え得るような頑丈な構成としなければならず、更に
上述のような種々の機能を合わせ持つ必要があるため、
前後方向への折り畳みに加えて、幅方向への折り畳み機
能を持たせることは、機構的に非常に複雑になり、重量
的にも重くなるという問題があったからである。[0003] These silver cars, when not in use,
In order to be able to store it in a small space, it is desirable that it be configured to be foldable so as to be as small as possible, as in the case of many strollers.
However, with conventional silver cars, when folding this, even if it is possible to fold in the front-back direction,
Folding in the width direction was almost impossible. that is,
The weight of the person who uses the silver car is usually considerably heavier than the weight of the child in the stroller, and the structure of the silver car must have a sturdy structure that can withstand a load of at least about 100 kg, for example. Furthermore, since it is necessary to have various functions as described above,
This is because providing the function of folding in the width direction in addition to folding in the front-rear direction has a problem that the mechanism becomes extremely complicated and heavy in weight.
【０００４】かかる問題を解消する手段として、本件出
願人は、先に、平成９年１０月１４日付けにて「手押し
車」に関する特許出願（出願番号：平９−２８０２５３
号）を行った。[0004] As means for solving such a problem, the present applicant has previously filed a patent application relating to a "handcart" on October 14, 1997 (application number: Hei 9-280253).
No.).
【０００５】図８〜図１２に示すように、この手押し車
１５は、左右一対の前脚１及び後脚２と、両側部が前脚
へ取り付けられ上端部が互いに連結されている概ねＵ字
形状を有している押棒３と、一端を後脚２へ中間部を前
脚１へ枢着されている左右一対の座杆４と、前脚を互い
に連結している一対の剛性部材からなる部材であって外
端部が前脚１に対して枢動可能に装着され内端部が枢着
手段５（図１０）の周りに回動自在に支持されている前
脚連結部材６と、後脚を互いに連結している一対の剛性
部材からなる部材であって外端部が後脚２に対して枢動
可能に装着され内端部が枢着手段７の周りに互いに回動
自在に支持されている後脚連結部材８と、下端部が一方
の後脚２へ枢着され上端部が他方の後脚等へ枢着され中
間部が枢着手段９によって回動可能に連結されている概
ねＸ形状に配置されている一対の開閉杆１０（図１０）
と、外端部が該開閉杆１０の枢着手段９より上方の部分
に枢動自在に連結され内端部が枢着手段１１の周りに互
いに回動自在に支持されている一対の操作杆１２と、こ
れら一対の操作杆１２の内端部を互いに枢着している枢
着手段１１と前記後脚連結部材８の内端部を互いに枢着
している枢着手段７とを連結している可撓性連結部材１
３と、下端部が前記前脚連結部材６の一方の剛性部材の
中心位置よりも枢着手段５に近接した部分に枢着され上
端部が一方の座杆４の２つの枢着手段間に枢着されてい
る牽引杆１４と、折り畳み時（図９）に前脚に対して後
脚の上端部を滑動せしめているスライダー１６と、から
構成されている。As shown in FIGS. 8 to 12, the handcart 15 has a generally U-shaped configuration in which a pair of left and right front legs 1 and rear legs 2 are attached to the front legs and both ends are connected to each other. A pair of right and left seat rods 4 having one end pivotally connected to the rear leg 2 at one end and the front leg 1 at an intermediate portion, and a pair of rigid members connecting the front legs to each other. A front leg connecting member 6 whose outer end is pivotally attached to the front leg 1 and whose inner end is rotatably supported around pivot means 5 (FIG. 10), and a rear leg connected to each other. A pair of rigid members having an outer end pivotally attached to the rear leg 2 and an inner end rotatably supported around the pivot means 7. The connecting member 8 has a lower end pivotally connected to one rear leg 2, an upper end pivotally connected to the other rear leg or the like, and an intermediate portion pivotally connecting means 9. Thus a pair of opening and closing rods which are arranged in a generally X shape is pivotally connected 10 (Fig. 10)
A pair of operating rods whose outer ends are pivotally connected to a portion of the opening / closing rod 10 above the pivot means 9 and whose inner ends are rotatably supported around the pivot means 11. 12 and a pivoting means 11 for pivoting the inner ends of the pair of operating rods 12 to each other and a pivoting means 7 for pivoting the inner ends of the rear leg connecting member 8 to each other. Flexible connecting member 1
3 and a lower end pivotally connected to a portion closer to the pivot means 5 than the center position of the one rigid member of the front leg connecting member 6 and an upper end pivoted between the two pivot means of the one seat rod 4. It is composed of a towed rod 14 that is worn, and a slider 16 that slides the upper end of the rear leg relative to the front leg when folded (FIG. 9).
【０００６】また押棒３は、図１１及び図１２に示すよ
うに、左右一対の外方杆１７と、該外方杆１７内を滑動
可能な一対の内方杆１８と、該内方杆１８の上端部に対
して円周方向に回転可能な回転部材１９と、下端部が該
回転部材１９にピン２０によって固定されておりかつそ
こから上方に伸長しその後水平方向に概ね９０°に曲げ
られている一対の直角エルボー形ハンドル部分２１と、
該一対のハンドル部分２１の上方位置の水平方向間に伸
びかつそれらの水平部分を互いに連結している連結杆２
２と、により構成されている。内方杆１８の上方部分が
回転部材１９に収容されており、また、下方部分は外方
杆１７内に滑動可能に収容されている。外方杆１７と内
方杆１８には互いに一定の間隔をおいて複数の穴２３が
設けてあり、これらの穴２３にピンを係合することによ
りハンドル部分２１の位置を上下に調節することが出来
るようになっている。As shown in FIGS. 11 and 12, the push rod 3 includes a pair of left and right outer rods 17, a pair of inner rods 18 slidable in the outer rods 17, and a pair of inner rods 18. A rotatable member 19 rotatable in a circumferential direction with respect to the upper end thereof, and a lower end secured to the rotatable member 19 by a pin 20 and extending upwardly therefrom and then bent in a horizontal direction by approximately 90 °. A pair of right-angled elbow-shaped handle portions 21,
A connecting rod 2 extending between the horizontal portions above the pair of handle portions 21 and connecting the horizontal portions to each other.
And 2. The upper part of the inner rod 18 is accommodated in the rotating member 19, and the lower part is slidably accommodated in the outer rod 17. The outer rod 17 and the inner rod 18 are provided with a plurality of holes 23 at a fixed interval from each other, and the positions of the handle portion 21 can be adjusted up and down by engaging pins in these holes 23. Can be done.
【０００７】更に回転部材１９には溝２４が形成され、
この溝２４には内方杆１８の上端部に設けた突出部２５
が嵌合し、これによりハンドル部分２１が内方杆１８の
周りをほぼ９０°にわたり回動出来る。Further, a groove 24 is formed in the rotating member 19,
The groove 24 has a protrusion 25 provided at the upper end of the inner rod 18.
Are fitted, so that the handle portion 21 can rotate around the inner rod 18 by approximately 90 °.
【０００８】しかして、前記一対の操作杆１２の内端部
を保持している把持部材２６を上方へ移動し、更に連結
部材１３を介して前記後脚連結部材８、８の枢着手段７
を、上方へ移動し、かつ、図１２に示すように、連結杆
２２を後方に引けば、一対のハンドル部分２１の水平部
分が互いに後方に回動し、突出部２５が回転部材１９の
溝２４内を図１１の位置から外側へ向かって移動する。
これによりこの手押し車１５は、開閉杆１０によって幅
方向に接近されかつ、同時に前脚連結部材６、６及び牽
引杆１４、１４によって前後方向に接近され、こうして
図９に示すように、前後方向及び左右方向に折り畳まれ
た折り畳み位置を得ることが出来る。Thus, the gripping member 26 holding the inner ends of the pair of operating rods 12 is moved upward, and furthermore, the pivoting means 7 of the rear leg connecting members 8, 8 is connected via the connecting member 13.
When the connecting rod 22 is pulled rearward as shown in FIG. 12, the horizontal portions of the pair of handle portions 21 rotate backward with respect to each other, and the protruding portion 25 becomes the groove of the rotating member 19. 24 moves outward from the position shown in FIG.
As a result, the handcart 15 is approached in the width direction by the opening / closing rod 10 and at the same time is approached in the front-rear direction by the front leg connecting members 6, 6 and the towing rods 14, 14. Thus, as shown in FIG. A folded position folded in the left-right direction can be obtained.
【０００９】また、連結杆２２を前方に押せば、一対の
ハンドル部分２１の水平部分が互いに水平位置にて直線
状態に配置され、開閉杆１０がＸ状に広がることによっ
て幅方向に拡開されかつ、更に前脚連結部材６、６及び
牽引杆１４、１４によって前後方向に拡開され、これに
より図８及び図１０に示すような拡開位置を得る。Further, when the connecting rod 22 is pushed forward, the horizontal portions of the pair of handle portions 21 are arranged in a straight line at the horizontal position with each other, and the opening / closing rod 10 is spread in an X-shape to be expanded in the width direction. Further, the front legs are further expanded in the front-rear direction by the front leg connecting members 6, 6 and the towing rods 14, 14, thereby obtaining an expanded position as shown in FIGS.
【００１０】かかる構成により、ベビーカーより重荷重
が作用するシルバーカーにおいても、使用時に安定して
おり、しかも不使用時には安全かつ確実に前後方向及び
左右方向に自由に折り畳むことが可能な新規な手押し車
を開示した。[0010] With this configuration, even in a silver car in which a heavier load acts than a stroller, a new hand push that is stable during use and can be safely and securely folded freely in the front-rear direction and left-right direction when not in use. Car disclosed.
【００１１】また、連結杆２２は、公知であり、例えば
図１３に示すように、中凹み形状を有する２つのリンク
Ａ、Ｂから構成されている（特開平１−２９７３７
２）。これらのリンクＡの一端部はピン２７ａ、２７ｂ
を介して一方のハンドル部分へ取り付けられ、他端部は
そこに設けた長溝内を摺動するピン２８ａ、２８ｂを介
して他方のハンドル部分へ取り付けられている。これら
２つのリンクＡ及びＢは中凹み部分へ係合しているつま
み２９を操作することにより、リンクＡ及びＢを相互に
移動させることによりハンドル部分２１を直線状態（図
１３Ａ）から折曲状態（図１３Ｂ）へ移行することが出
来るようになっている。The connecting rod 22 is publicly known, and is composed of, for example, two links A and B having a concave shape as shown in FIG.
2). One ends of these links A are pins 27a, 27b
And the other end is attached to the other handle portion via pins 28a and 28b which slide in a long groove provided therein. These two links A and B are moved from the straight state (FIG. 13A) to the bent state by operating the knob 29 engaged with the middle concave part to move the links A and B mutually. (FIG. 13B).
【００１２】[0012]
【発明が解決しようとする課題】この上述のシルバーカ
ーにおいては、前後方向及び幅方向へ円滑に折り畳むこ
とが出来るが、拡開位置における前後方向及び幅方向の
揺れを完全に防止することには幾分困難があった。In the above-described silver car, it is possible to smoothly fold the car in the front-rear direction and the width direction. There was some difficulty.
【００１３】そこで本件発明は、前後方向及び幅方向へ
の折り畳み機能を持たせた手押し車においては、拡開位
置における前後方向及び幅方向への揺れを一層効果的に
防止するための新規な構成を有する手押し車を提供する
ことを目的とする。Accordingly, the present invention provides a novel configuration for a wheelbarrow having a function of folding in the front-rear direction and the width direction to more effectively prevent shaking in the front-rear direction and the width direction at the expanded position. An object of the present invention is to provide a wheelbarrow having the following.
【００１４】[0014]
【課題を解決するための手段】そこで本件発明における
手押し車３０においては、かかる課題するために、該手
押し車３０の前後方向及び左右方向の揺動又は歪みを防
止するために、以下のような種々の緊張強化手段が設け
てある。即ち、下端部が前脚連結部材４１の一側（右側
又は左側）の剛性部材４０に枢着され上端部が他側（左
側又は右側）の座杆３８の前記枢着手段３６、３７の間
に枢着されている一対の第１牽引杆であって、図３にお
いて明らかなように互いにＸ形状に交差するように配置
している一対の第１牽引杆５６より構成されている第１
強化手段５７と、下端部が一側（右側又は左側）の前脚
３２の前輪３１に近い箇所に枢着され上端部が他側（左
側又は右側）の座杆３８の前記枢着手段３７と他端（前
端）との間に枢着されている一対の第２牽引杆であっ
て、図３において明らかなように互いにＸ形状に交差す
るように配置している一対の第２牽引杆５８より構成さ
れている第２強化手段５９と、を有している。これらの
強化手段５７、５９は特に手押し車３０の左右の揺動又
は歪みを防止する上で極めて効果的な機能を果たしてい
る。In order to solve the above-mentioned problem, the wheelbarrow 30 according to the present invention has the following features to prevent the wheelbarrow 30 from swinging or distorting in the front-rear direction and the left-right direction. Various tension enhancing means are provided. That is, the lower end is pivotally connected to the rigid member 40 on one side (right or left) of the front leg connecting member 41 and the upper end is between the pivoting means 36 and 37 of the seat rod 38 on the other side (left or right). A first pair of first tow rods, which are pivotally mounted, are constituted by a pair of first tow rods 56 arranged so as to intersect with each other in an X shape, as is apparent in FIG.
The reinforcing means 57 and the pivoting means 37 of the seat rod 38 of which the lower end is pivotally connected to the front wheel 31 of one side (right or left) near the front wheel 31 and the upper end is the other side (left or right) are different from the pivoting means 37. A pair of second tow bars 58 pivotally attached to the end (front end), and as shown in FIG. 3, a pair of second tow bars 58 arranged so as to intersect each other in an X shape. And the second reinforcing means 59 configured. These reinforcing means 57, 59 have a particularly effective function in preventing the wheelbarrow 30 from swinging or distorting.
【００１５】更に、本件発明の手押し車３０において
は、一端がそれぞれ一側（右側又は左側）の前脚３２及
び後脚３４へ枢着されている緊張杆であって、他端が互
いにピン等によって枢動可能に連結されている一対の緊
張杆６０からなる緊張手段６１を両側部に有している。
これは特に手押し車３０の前後方向の揺動又は歪みを防
止する上で極めて効果的な機能を果たしている。Further, in the wheelbarrow 30 of the present invention, one end is a tension rod which is pivotally attached to one (right or left) front leg 32 and rear leg 34, respectively, and the other end is mutually pinned by a pin or the like. Tensioning means 61 comprising a pair of tensioning rods 60 pivotally connected is provided on both sides.
This has a particularly effective function in preventing the wheelbarrow 30 from swinging or distorting in the front-rear direction.
【００１６】[0016]
【発明の実施の形態】以下、本発明の実施例につき図面
を参照しながら述べる。本件発明は、実質的に、図８〜
図１３に関して述べた構造を改良したものである。図に
おいて、図１〜図５は本件発明の手押し車３０の具体的
な構成について示している。以下の説明においては、本
件発明の手押し車の前方又は後方から見てその構造は実
質的に左右対称となっているため、必要な場合以外は、
一方の構成のみについて述べる。また、そのため、前後
方向からの違いがより明確になるように図３において
は、図面の中心線から左側には本件発明の手押し車を前
方から見た構造を示し、右側には本件発明の手押し車を
後方から見た構造を示す。また、以下においては、シル
バーカーについて述べるが、本発明はベビーカーにも使
用出来ることは当業者において明らかである。Embodiments of the present invention will be described below with reference to the drawings. The present invention is substantially equivalent to FIGS.
14 is an improvement of the structure described with reference to FIG. 1 to 5 show a specific configuration of a wheelbarrow 30 of the present invention. In the following description, since the structure is substantially symmetrical when viewed from the front or rear of the wheelbarrow of the present invention, unless necessary,
Only one configuration will be described. Also, in order to make the difference from the front-back direction clearer, FIG. 3 shows the structure of the wheelbarrow of the present invention viewed from the front on the left side from the center line of the drawing, and the wheelbarrow of the present invention on the right side. 1 shows a structure of a car viewed from the rear. In the following, a silver car will be described, but it will be apparent to those skilled in the art that the present invention can be used for a stroller.
【００１７】本件発明にかかる手押し車３０は、下端に
前輪３１を有している左右一対の前脚３２と、下端に後
輪３３を有している左右一対の後脚３４と、前記一対の
前脚３２の上端から立ち上がり上端部が互いに連結され
ている概ねＵ字形状を有している押棒３５と、両側方に
あって一方の端部即ち一端（後端）を一側方の後脚３４
へ中間部を一側方の前脚３２へそれぞれピン等の枢着手
段３６、３７によって枢着されている左右一対の座杆３
８と、左右一対の前脚を互いに連結している部材であっ
て一方の端部即ち一端（外側端）が左右の前脚３２に対
してそれぞれ枢動可能に装着され他端（内側端）がピン
等の枢着手段３９（図３参照）の周りに互いに回動自在
に支持されている左右一対の剛性部材４０からなる前脚
連結部材４１と、同様に左右一対の後脚を互いに連結し
ている部材であって一方の端部即ち一端（外側端）が左
右の後脚３４に対して枢動可能に装着され他端（内側
端）がピン等の枢着手段４２の周りに互いに回動自在に
支持されている左右一対の剛性部材４３からなる後脚連
結部材４４と、を有している。The handcart 30 according to the present invention includes a pair of left and right front legs 32 having a front wheel 31 at a lower end, a pair of left and right rear legs 34 having a rear wheel 33 at a lower end, and the pair of front legs. A push rod 35 having a substantially U-shape and rising from the upper end of the upper end 32 and having an upper end connected to each other, and one end, that is, one end (rear end) on one side and one rear leg 34 on one side.
A pair of left and right seat rods 3 which are pivotally connected to the front leg 32 on one side by pivoting means 36 and 37 such as pins, respectively.
8 and a pair of left and right front legs connected to each other. One end, that is, one end (outer end) is pivotally attached to the left and right front legs 32, and the other end (inner end) is a pin. A front leg connecting member 41 composed of a pair of left and right rigid members 40 rotatably supported around pivot means 39 (see FIG. 3), and a pair of left and right rear legs are similarly connected to each other. One end, that is, one end (outer end) is pivotally mounted to the left and right rear legs 34 and the other end (inner end) is rotatable about a pivot means 42 such as a pin. And a rear leg connecting member 44 comprising a pair of right and left rigid members 43 supported by the rear leg.
【００１８】この手押し車３０は、更に、下端部がそれ
ぞれ一側（右側又は左側）の後脚３４の下方位置へ枢着
され、上端部が押棒３５の他側（左側又は右側）の立ち
上がり部分へ枢着され、中間部がピン等の枢着手段４９
によって回動可能に連結されている概ねＸ形状に配置さ
れている一対の開閉杆５０と、一端が各開閉杆５０の中
間の枢着手段４９より上方の部分にそれぞれ枢動自在に
連結され他端が枢着手段５１の周りに互いに回動自在に
支持されている一対の操作杆５２と、を有している。The wheelbarrow 30 further has a lower end pivotally attached to a position below the rear leg 34 on one side (right or left), and an upper end on the other side (left or right) of the push rod 35. And the middle part is a pivot means 49 such as a pin.
A pair of opening / closing bars 50 arranged in a generally X-shape, which are rotatably connected with each other, and one end of which is pivotally connected to a portion of the opening / closing bar 50 above a pivot means 49 between the opening / closing bars 50, respectively. A pair of operating rods 52 whose ends are rotatably supported around the pivot means 51.
【００１９】また、枢着手段５１には、例えば後方へ張
り出している把持部を備えている断面がＬ字形を有する
把持手段５３が取り付けてある。さらにこの把持手段５
３には例えばベルト等から成る可撓性の連動部材５４の
上端部が取り付けてあり、この連動部材５４の下端部は
前記後脚連結部材４４の枢着手段４２に取り付けてある
取り付け金具５５へ取り付けてある。このため、該把持
手段５３を上方へ移動すると、一対の操作杆５２の他端
が上方へ移動し、これに連動して後脚連結部材４４の枢
着手段４２が上方へ移動する。しかしながら、後脚連結
部材４４を構成している左右一対の剛性部材４３が拡開
時（図３）において、該剛性部材４３と後脚３４とを枢
着している左右の点（外側端）を結ぶ直線が、いくつか
の公知例においてみられるように、常に該一対の剛性部
材４３を枢動可能に連結している点４２（内側端）より
下方に位置するように、該後脚連結部材４４を形成すれ
ば、取り付け金具５５及び連動部材５４は必ずしも必須
の要件ではない。なぜならかかる構造によれば、後脚３
４を互いに接近すれば、該後脚連結部材４４は、必ずそ
の中央枢動部分４２が上方へ移動しながら折り畳まれる
からである。The pivoting means 51 is provided with a gripping means 53 having an L-shaped cross section, for example, having a gripping portion projecting rearward. Further, this gripping means 5
3 is provided with an upper end of a flexible interlocking member 54 made of, for example, a belt or the like, and a lower end of the interlocking member 54 is attached to a mounting bracket 55 mounted on the pivoting means 42 of the rear leg connecting member 44. It is attached. Therefore, when the gripping means 53 is moved upward, the other ends of the pair of operating rods 52 are moved upward, and in conjunction with this, the pivoting means 42 of the rear leg connecting member 44 is moved upward. However, when the pair of right and left rigid members 43 constituting the rear leg connecting member 44 are expanded (FIG. 3), the right and left points (outer ends) pivotally connecting the rigid member 43 and the rear legs 34. As shown in some known examples, the rear leg connection is always positioned below a point 42 (inner end) connecting the pair of rigid members 43 pivotally. If the member 44 is formed, the mounting bracket 55 and the interlocking member 54 are not necessarily required. Because of this structure, the rear legs 3
This is because the rear leg connecting member 44 is always folded while the central pivot portion 42 moves upward when the four are approached to each other.
【００２０】本件発明の手押し車３０においては、さら
にまた、該手押し車３０の左右方向及び前後方向の揺動
又は歪みを防止するために、以下のような種々の緊張強
化手段が設けてある。即ち、下端部が前記前脚連結部材
４１の一側（右側又は左側）の剛性部材４０に枢着され
上端部が他側（左側又は右側）の座杆３８の前記枢着手
段３６、３７の間に枢着されている一対の第１牽引杆で
あって、図３において明らかなように互いにＸ形状に交
差するように配置している一対の第１牽引杆５６より構
成されている第１強化手段５７と、下端部が一側（右側
又は左側）の前脚３２の前輪３１に近い箇所に枢着され
上端部が他側（左側又は右側）の座杆３８の前記枢着手
段３７と他端（前端）との間に枢着されている一対の第
２牽引杆であって、図３において明らかなように互いに
Ｘ形状に交差するように配置している一対の第２牽引杆
５８より構成されている第２強化手段５９と、を有して
いる。これらの強化手段５７、５９は特に手押し車３０
の左右の揺動又は歪みを防止する上で極めて効果的な機
能を果たしている。The wheelbarrow 30 of the present invention is further provided with the following various tension enhancing means for preventing the wheelbarrow 30 from swinging or distorting in the left-right direction and the front-rear direction. That is, the lower end is pivotally connected to the rigid member 40 on one side (right or left) of the front leg connecting member 41 and the upper end is between the pivoting means 36 and 37 of the seat rod 38 on the other side (left or right). A first reinforcement comprising a pair of first tow rods 56 pivotally mounted on a pair of first tow rods 56 arranged so as to intersect each other in an X-shape as is apparent in FIG. Means 57, the lower end of which is pivotally connected to the front leg 32 of one side (right or left) near the front wheel 31, and the upper end of which is the other end (left or right) of the seat rod 38 and the other end. And a pair of second tow bars 58 pivotally mounted between the (front end) and a pair of second tow bars 58 arranged so as to intersect with each other in an X-shape as is apparent in FIG. And second reinforcing means 59 that is provided. These strengthening means 57, 59 are particularly suitable for the wheelbarrow 30.
It has an extremely effective function in preventing left and right swing or distortion.
【００２１】更に、本件発明の手押し車３０において
は、一端がそれぞれ一側（右側又は左側）の前脚３２及
び後脚３４へ枢着されている一対の緊張杆であって、他
端が互いにピン等によって枢動可能に連結されている一
対の緊張杆６０からなる緊張手段６１を有している。こ
れは特に手押し車３０の前後方向の揺動又は歪みを防止
する上で極めて効果的な機能を果たしている。ここで前
脚３２及び後脚３４と緊張杆６０の外端部とを枢着して
いる２つの枢着手段を結ぶ線よりも、２つの緊張杆６０
の内端部同士を枢着している枢着手段の位置が常に下方
位置に有るように配置している。Further, in the wheelbarrow 30 of the present invention, one end is a pair of tension rods each pivotally connected to one (right or left) front leg 32 and rear leg 34, and the other end is pinned to each other. It has a tensioning means 61 composed of a pair of tensioning rods 60 pivotally connected by the like. This has a particularly effective function in preventing the wheelbarrow 30 from swinging or distorting in the front-rear direction. Here, two tension rods 60 are connected to each other by a line connecting two pivoting means pivotally coupling the front leg 32 and the rear leg 34 to the outer end of the tension rod 60.
Are arranged so that the position of the pivoting means for pivotally coupling the inner ends thereof is always at the lower position.
【００２２】押棒３５は、概括的には、一対の縦行部
と、これらの縦行部の上端部を連結している横行部と、
を有している概ねＵ字形状を有している。この実施例に
おいては、図４に示すように、縦行部は、前脚３２と、
前脚３２へ対して嵌合配置されている左右一対（図にお
いてはその一方のみを示している）の下方杆６５と、下
方杆６５の上端へ嵌合配置されている直角エルボー形の
上方杆６６の縦方向部６６ａと、から成り、一方、横行
部は左右一対の上方杆６６の横方向部６６ｂ及びそれら
を連結している連結杆６７（図６及び図７）と、により
構成されている。ここで上方杆６６は、好ましくは図示
していないスポンジ、ゴム等のソフトタッチ可能な補助
部材によってその全長が覆われている。ここで嵌合配置
とは、両者が互いに嵌合関係をもって配置されている状
態を指し、例示として示した、下方杆６５が前脚３２及
び上方杆６６へ入り込んでいるような差し込み寸法関係
に限定されず、前脚３２及び又は上方杆６６が下方杆６
５へ入り込むような寸法であってもよいのである。The push rod 35 is generally composed of a pair of longitudinal parts, a transverse part connecting the upper ends of these longitudinal parts,
And has a generally U-shape. In this embodiment, as shown in FIG.
A pair of right and left lower bars 65 (only one of them is shown in the figure) fitted to the front leg 32, and a right-angle elbow upper bar 66 fitted to the upper end of the lower bar 65. The horizontal portion is composed of a horizontal portion 66b of a pair of left and right upper rods 66 and a connecting rod 67 (FIGS. 6 and 7) connecting them. . Here, the entire length of the upper rod 66 is preferably covered by a soft-touchable auxiliary member such as sponge or rubber (not shown). Here, the fitting arrangement refers to a state in which the two are arranged in a fitting relationship with each other, and is limited to an insertion dimensional relationship in which the lower rod 65 is inserted into the front leg 32 and the upper rod 66 as shown as an example. The front leg 32 and / or the upper rod 66
It may be a dimension that fits into 5.
【００２３】前脚３２の上方部分に軸線方向に沿って複
数の穴７０が形成されている。一方、下方杆６５の下方
部分には単一の穴７１が形成されている。勿論、前脚に
単数の穴を、下方杆に複数の穴を設けることも可能であ
る。これらの穴には面付きピン７２が嵌合し、前脚３２
と下方杆６５と固着関係に保持している。穴に対するピ
ン７２の嵌合位置を変動することにより、押棒３５の高
さを調節することが出来る。前脚３２と下方杆６５との
嵌合部分には、前記面付きピン７２の面部分を包囲する
ように包囲体７３が配置されている。面付きピン７２の
位置調整は該包囲体７３を、例えば図示の例では、上方
へ移動することにより、容易に行うことが出来る。A plurality of holes 70 are formed in the upper part of the front leg 32 along the axial direction. On the other hand, a single hole 71 is formed in a lower portion of the lower rod 65. Of course, it is also possible to provide a single hole in the front leg and a plurality of holes in the lower rod. Surface pins 72 are fitted into these holes, and the front legs 32
And the lower rod 65 in a fixed relationship. The height of the push rod 35 can be adjusted by changing the fitting position of the pin 72 to the hole. A surrounding body 73 is arranged at a fitting portion between the front leg 32 and the lower rod 65 so as to surround the surface part of the surface pin 72. The position adjustment of the surface pin 72 can be easily performed by moving the surrounding body 73 upward, for example, in the illustrated example.
【００２４】更に、該下方杆６５にはスライダー部材７
４が嵌合している。このスライダー部材７４は、下方杆
６５を滑動可能に受け入れるための貫通孔７５と、後脚
３４の上端を受け入れための盲孔７６を有している。盲
孔７６へ受け入れられた後脚３４の上端部はそこにおい
てピン等の固定手段によって回動自在に取り付けられて
いる。Further, a slider member 7 is attached to the lower rod 65.
4 are fitted. The slider member 74 has a through hole 75 for slidably receiving the lower rod 65 and a blind hole 76 for receiving the upper end of the rear leg 34. The upper end of the rear leg 34 received in the blind hole 76 is rotatably attached thereto by fixing means such as a pin.
【００２５】また、この下方杆６５にはスライダー部材
７４の上方位置に管状固定具７７がピン等の固定手段に
よって固着されている。この固定具７７は、後方へ向か
って伸び中央に穴７８を有している第１フランジ７９
と、第１フランジ７９に対してほぼ直角をなす位置から
手押し車に中央方向へ伸びている第２フランジ８０と、
を有している。この第２フランジ８０の中央部には中央
に穴７８を有し前記第１フランジ７９と同様の方向に伸
びている補助フランジ８１を有している。管状固定具７
７はピン等の固定手段により下方杆６５へ固定されてい
る。更にこの固定具７７はその下端部に衝接部８２を有
している。この衝接部８２には、前記スライダー部材７
４が衝接し当該スライダー部材７４がそれ以上上方へ移
動することを阻止している。この固定具７７は、図示の
例では一体形状の管状を構成しているが、取り付け容易
のために縦方向に２つ割りにし左右から合わせて下方杆
６５を抱くような形態のものでもよい。A tubular fixing member 77 is fixed to the lower rod 65 at a position above the slider member 74 by fixing means such as a pin. The fixing device 77 includes a first flange 79 extending rearward and having a hole 78 at the center.
A second flange 80 extending centrally to the handcart from a position substantially perpendicular to the first flange 79;
have. At the center of the second flange 80, there is an auxiliary flange 81 having a hole 78 at the center and extending in the same direction as the first flange 79. Tubular fixture 7
Reference numeral 7 is fixed to the lower rod 65 by fixing means such as a pin. Further, the fixture 77 has an abutment portion 82 at a lower end thereof. The contact portion 82 includes the slider member 7
4 prevents the slider member 74 from moving further upward. In the example shown in the drawing, the fixing member 77 is formed as an integral tubular member. However, the fixing member 77 may be divided into two parts in the vertical direction for easy mounting, and may hold the lower rod 65 from the left and right sides.
【００２６】該固定具７７の第１フランジ７９には、図
３に示すように、左右の後輪３３にそれぞれ同時に作動
する制動装置（図示なし）を起動するための制動レバー
８３が取り付けてあり、この制動レバー８３からは可撓
性コード８４が制動装置まで伸び、該レバー８３を作動
することにより制動装置を起動することが出来るように
なっている。よって第１フランジ７９は、左右の固定具
７７の少なくとも一方の固定具にのみ設けてあればよ
い。また、補助フランジ８１には、図３に示すように、
開閉杆５０の上端部が枢着されている。As shown in FIG. 3, a braking lever 83 for activating a braking device (not shown) that operates simultaneously on the left and right rear wheels 33 is attached to the first flange 79 of the fixing member 77. A flexible cord 84 extends from the brake lever 83 to the brake device, and the brake device can be activated by operating the lever 83. Therefore, the first flange 79 only needs to be provided on at least one of the left and right fixtures 77. Also, as shown in FIG.
The upper end of the opening / closing rod 50 is pivoted.
【００２７】下方杆６５の上端部には約９０°に亙って
伸びている長溝８５が形成されている。この長溝８５の
下方位置にはピン８６が外方に突出するように固定され
ている。一方、図示の例においては該下方杆６５の上端
部を受け入れている上方杆６６の下方位置には同様に約
９０°に亙って伸びている長溝８７が形成され、更にこ
の長溝８７の上方位置には穴８８が設けてある。しかし
て、この下方杆６５と上方杆６６との嵌合部分を管体８
９が包囲している。管体８９は下端部に約９０°に亙っ
て伸びている長溝９０を有し、この長溝９０の上方位置
にはピン９１が内方に突出するように設けてある。The upper end of the lower rod 65 is formed with a long groove 85 extending over about 90 °. A pin 86 is fixed below the long groove 85 so as to protrude outward. On the other hand, in the example shown in the figure, a long groove 87 is also formed at a lower position of the upper rod 66 that receives the upper end of the lower rod 65 and extends over about 90 °. A hole 88 is provided at the position. The fitting portion between the lower rod 65 and the upper rod 66 is connected to the pipe 8
9 are surrounded. The tube body 89 has a long groove 90 extending at about 90 ° at a lower end thereof, and a pin 91 is provided above the long groove 90 so as to protrude inward.
【００２８】図５Ａは、下方杆６５と上方杆６６と管体
８９との関係を明確にするため、特に管体８９の寸法を
拡大して模式図的に示している。図から明確なように管
体８９のピン９１は、図において線Ａ−Ａにて示すよう
に上方杆６６の穴８８を介し、次いで下方杆６５の長溝
８５内へ入り込んでいる。一方、下方杆６５のピン８６
は、図において線Ｂ−Ｂにて示すように上方杆６６の長
溝８７を介し、次いで下管体８９の長溝９０内へ入り込
んでいる。図５Ｂは、図５Ａの線Ａ−Ａ断面を示してお
り、図５Ｃは、図５Ａの線Ｂ−Ｂ断面を示している。こ
れから分かるように、もし上方杆６６が図２に示すよう
に前方へ約９０°回転すると、上方杆６６の穴８８へ入
り込んでいるピン９１が管体８９を同時に約９０°回転
する。このとき該管体８９の長溝９０は下方杆６５のピ
ン８６の回りに空転するため、下方杆６５は回転するこ
とはない。従って該上方杆６６は下方杆６５に関係なく
前方へ約９０°回転することが出来る。FIG. 5A is a schematic diagram in which the dimensions of the pipe 89 are enlarged in order to clarify the relationship between the lower rod 65, the upper rod 66 and the pipe 89. As is clear from the figure, the pin 91 of the tube 89 passes through the hole 88 of the upper rod 66 and then into the long groove 85 of the lower rod 65 as shown by the line AA in the figure. On the other hand, the pin 86 of the lower rod 65
Is inserted through the long groove 87 of the upper rod 66 and then into the long groove 90 of the lower pipe 89 as shown by the line BB in the figure. FIG. 5B shows a cross section taken along line AA of FIG. 5A, and FIG. 5C shows a cross section taken along line BB of FIG. 5A. As can be seen, if the upper rod 66 rotates forward by about 90 ° as shown in FIG. 2, the pins 91 inserted into the holes 88 of the upper rod 66 simultaneously rotate the pipe 89 by about 90 °. At this time, since the long groove 90 of the tubular body 89 idles around the pin 86 of the lower rod 65, the lower rod 65 does not rotate. Therefore, the upper rod 66 can rotate forward by about 90 ° regardless of the lower rod 65.
【００２９】上方杆６６の上方水平部分へは接続杆９２
の一端部９３が差し込まれ、そこへピン等の固定手段に
よって固着されている。一方、接続杆９２の他端部には
中央部に穴を有しているカム９４が形成され、このカム
９４が当該中央部の穴を介して連結杆６７へ接続されて
いる。なお、接続杆９２の一端部９３とカム９４との間
にはフランジ９５が形成されている。A connecting rod 92 is connected to the upper horizontal portion of the upper rod 66.
End 93 is inserted and fixed thereto by fixing means such as a pin. On the other hand, a cam 94 having a hole at the center is formed at the other end of the connecting rod 92, and this cam 94 is connected to the connecting rod 67 via the hole at the center. A flange 95 is formed between one end 93 of the connecting rod 92 and the cam 94.
【００３０】連結杆６７（図３及び図６Ａ）は、概括的
には、図６及び図７に示すように、上方ハウジング１０
０と、下方ハウジング１０１と、第１滑動体１０２と、
第２滑動体１０３と、これらの滑動体を起動するための
起動体１０４と、により構成されている。The connecting rod 67 (FIGS. 3 and 6A) is generally connected to the upper housing 10 as shown in FIGS.
0, a lower housing 101, a first sliding body 102,
It comprises a second sliding body 103 and an activation body 104 for activating these sliding bodies.
【００３１】上方ハウジング１００は、細長い形状を有
し、両端部にそれぞれ穴１０５を、中央部には中央開口
１０６を有する円形部１０７が形成されている。更に該
円形部１０７には中央開口１０６と同心をなす円形溝１
０８が約９０°にわたり設けてある。The upper housing 100 has an elongated shape, and has a circular portion 107 having a hole 105 at each end and a central opening 106 at the center. In addition, the circular portion 107 has a circular groove 1 concentric with the central opening 106.
08 is provided over about 90 °.
【００３２】下方ハウジング１０１は、細長い形状を有
し、両端部にそれぞれ穴１０９を、中央部には円形部１
１０が形成されている。更に該下方ハウジング１０１の
長手方向にそった両側部には一対の立上部１１１が伸び
ている。The lower housing 101 has an elongated shape, and has holes 109 at both ends and a circular portion 1 at the center.
10 are formed. Further, a pair of rising portions 111 extend on both sides along the longitudinal direction of the lower housing 101.
【００３３】第１滑動体１０２は、細長い部材から構成
されており、中央部には細長い溝１１２、両端部には起
動体受け部１１３及びカム受け部１１４が垂直に立ち上
がっている。The first sliding member 102 is formed of an elongated member. An elongated groove 112 is provided at a central portion, and an activator receiving portion 113 and a cam receiving portion 114 are vertically provided at both ends.
【００３４】第２滑動体１０３は、同様に細長い部材か
ら構成されており、中央部には細長片１１５、その両端
部には起動体受け部１１６及びカム受け部１１７が垂直
に立ち上がっている。ここで、細長片１１５は、第１滑
動体１０２の細長い溝１１２へ受け入れられそこで滑動
出来るようになっている。なお図において１１８は停止
片を示している。The second sliding member 103 is also formed of an elongated member. An elongated piece 115 is provided at a central portion, and an activator receiving portion 116 and a cam receiving portion 117 are vertically provided at both ends thereof. Here, the elongated piece 115 is received in the elongated groove 112 of the first sliding body 102 and can slide there. In the drawing, reference numeral 118 denotes a stop piece.
【００３５】起動体１０４は、第１滑動体１０２及び第
２滑動体１０３の起動体受け部１１３と起動体受け部１
１６との間に配置されており、これらの起動体受け部へ
直接作用する作動部１１９と、該作動部１１９を起動す
るための起動部１２０と、を好ましくは一体的に形成さ
れている。The starting member 104 includes the starting member receiving portions 113 and 1 of the first sliding member 102 and the second sliding member 103.
The actuating part 119 which is arranged between the actuating part 119 and the actuating part 119 and which actuates the actuating part 119 directly is preferably formed integrally.
【００３６】図６Ｂから明らかなように、ピン１２１、
１２１が、それぞれ上方ハウジング１００の穴１０５、
１０５、接続杆９２、９２のカム９４、９４、下方ハウ
ジング１０１の穴１０９、１０９を介して伸びている。
下方ハウジング１０１の一対の立上部１１１間には、第
１滑動体１０２と、該第１滑動体１０２の溝１１２内を
左右に滑動可能に配置されている第２滑動体１０３と、
が滑動自在に収納されている。起動体受け部１１３及び
起動体受け部１１６が互いに接近するように、これらの
起動体受け部に設けた穴には、ばね１２１ａの端部がそ
れぞれ配置されている。As apparent from FIG. 6B, the pins 121,
121 are holes 105 of the upper housing 100,
105, the connecting rods 92, the cams 94, 94 of the 92, and the holes 109, 109 of the lower housing 101 extend.
A first sliding member 102 and a second sliding member 103 arranged to be slidable left and right in a groove 112 of the first sliding member 102 between a pair of rising portions 111 of the lower housing 101;
Is slidably housed. The ends of the springs 121a are respectively disposed in holes provided in the activation body receiving portions so that the activation body receiving portions 113 and 116 approach each other.
【００３７】このばね１２１ａの弾性力に抗するよう
に、起動体受け部１１３と起動体受け部１１６との間に
は起動体１０４の作動部１１９が配置されている。ばね
１２１ａが起動体受け部１１３と起動体受け部１１６と
を互い接近させる位置（図６Ｂ及び６Ｃ）に有るときに
は、第１滑動体１０２のカム受け部１１４と第２滑動体
１０３のカム受け部１１７とは、左右に最も離れた位置
に有り、これらのカム受け部１１４、１１７は、それぞ
れ前記カム９４、９４に設けた凹み１２２、１２２内へ
嵌合している。これらの凹み１２２は、接続杆９２の軸
線上に形成されており、そのため、該凹み１２２にカム
受け部１１４、１１７が嵌合しているときには、左右の
接続杆９２は互いに一直線をなすように保持され、押棒
３５は完全にＵ字形状をなし、手押し車３０は拡開状態
を維持する。このとき概ね円形をなしている前記カム９
４の一部に外方へ突出して形成しているカム偏倚部１２
６が、前記下方ハウジング１０１の一方の立上部１１１
（ａ）の両端部に設けた衝接部１２７（図７Ｂ）へ衝接
することにより一対の接続杆９２の当該衝接方向へのそ
れ以上の回転が阻止されている。An operating portion 119 of the activating body 104 is disposed between the activating body receiving portion 113 and the activating body receiving portion 116 so as to oppose the elastic force of the spring 121a. When the spring 121a is at a position (FIGS. 6B and 6C) for bringing the activator receiving portion 113 and the activator receiving portion 116 closer to each other, the cam receiving portions 114 of the first sliding member 102 and the cam receiving portions of the second sliding member 103 are provided. The cam receiving portions 114 and 117 are fitted into recesses 122 and 122 provided in the cams 94 and 94, respectively. These recesses 122 are formed on the axis of the connecting rod 92. Therefore, when the cam receiving portions 114 and 117 are fitted in the recesses 122, the left and right connecting rods 92 are aligned with each other. The push rod 35 is completely U-shaped while being held, and the handcart 30 maintains the expanded state. At this time, the cam 9 having a substantially circular shape
4 is a cam biasing portion 12 formed to protrude outward.
6 is one rising portion 111 of the lower housing 101.
By abutting against the abutting portions 127 (FIG. 7B) provided at both ends of (a), further rotation of the pair of connecting rods 92 in the abutting direction is prevented.
【００３８】起動体１０４の起動部１２０へ差し込ま
れ、ねじ１２３によって当該起動体１０４へ固定されて
いるつまみ１２４（図６Ｂ）は、底部に突起１２５を有
しており、この突起１２５は上方ハウジング１００の円
形溝１０８内へ入り込んでおり、該つまみ１２４の回転
角度を制限している。A knob 124 (FIG. 6B), which is inserted into the starting portion 120 of the starting body 104 and is fixed to the starting body 104 by a screw 123, has a projection 125 on the bottom. 100 into a circular groove 108 to limit the angle of rotation of the knob 124.
【００３９】つまみ１２４を図６Ａにおいて矢印方向へ
回転すると、起動体１０４が図６Ｃの位置から図６Ｄの
位置まで回転移動する。このため滑動体１０２、１０３
の起動体受け部１１３、１１７がばね１２１ａの力に抗
して互いに引き離される。その結果該滑動体１０２、１
０３のカム受け部１１４、１１７が相対的に接近するよ
うに滑動し、前記カム９４の凹み１２２から離れる。こ
のため、それまで一直線状を維持していた該接続杆９２
が、ピン１２１の回りにおいて、衝接部１２７からカム
の偏倚部１２６が離れる方向（連結部６７を図６Ａ、図
６Ｃにおいて紙面に沿って上方へ移動する方向）へ自由
に回転出来る状態とする。この状態において連結部６７
を、完全に移動すると、接続杆９２のカム９４がピン１
２１の回りを回転し押棒の折り曲げが達成されるのであ
る。このとき該カム９４のフランジ９５に近接した部分
が、他方の立ち上げ部１１１（ｂ）の両端部に設けた衝
接部１２７ａに衝接し、連結部６７のそれ以上の移動を
阻止する。When the knob 124 is rotated in the direction of the arrow in FIG. 6A, the starting body 104 rotates from the position shown in FIG. 6C to the position shown in FIG. 6D. For this reason, the sliding bodies 102 and 103
Are separated from each other against the force of the spring 121a. As a result, the sliding bodies 102, 1
03 slides so that the cam receiving portions 114 and 117 are relatively close to each other, and separates from the recess 122 of the cam 94. For this reason, the connecting rod 92 which has been maintained in a straight line until then.
However, around the pin 121, the cam biasing portion 126 can be freely rotated in the direction in which the cam biasing portion 126 moves away from the contact portion 127 (the direction in which the connecting portion 67 moves upward along the paper surface in FIGS. 6A and 6C). . In this state, the connecting portion 67
Is completely moved, the cam 94 of the connecting rod 92 is
Rotating around 21, the bending of the push rod is achieved. At this time, the portion of the cam 94 close to the flange 95 abuts against the abutting portions 127a provided at both ends of the other rising portion 111 (b), and prevents further movement of the connecting portion 67.
【００４０】本件発明の装置を折り畳む時には以下の手
順による。初めに連結杆６７のつまみ１２４を図６Ａで
時計方向へ回転した後、操作杆５２の把持手段５３を図
３の拡開ロック位置（開閉杆５０と操作杆５２との枢着
点を結ぶ線よりも操作杆５２と操作杆５２とを枢着して
いる枢着点が下方に有る状態）から上方へ移動し、該操
作杆５２の枢着手段５１の位置を上方へ引き上げる。こ
れにより操作杆５２がＸ形状に配置されている開閉杆５
０を枢着手段４９の周りに回転させ、左右の後脚３４の
下方部及び左右の押棒３５下方杆６５を互いに接近させ
る。同時に（ある場合には該把持手段５３に対してベル
ト等の可撓性の連動部材５４によって連結されている）
取り付け金具５５が上方へ移動し、後脚連結部材４４の
中間の枢着手段４２を上方へ移動し左右の後脚３４の下
方部を互いに接近させる。The following procedure is used when folding the device of the present invention. First, the knob 124 of the connecting rod 67 is rotated clockwise in FIG. 6A, and then the gripping means 53 of the operating rod 52 is moved to the expanded lock position shown in FIG. 3 (a line connecting the pivotal connection point of the opening / closing rod 50 and the operating rod 52). (In a state where a pivot point for pivotally connecting the operating rod 52 to the operating rod 52 is located below), and the position of the pivoting means 51 of the operating rod 52 is raised upward. Thus, the opening / closing rod 5 in which the operating rod 52 is arranged in an X shape.
0 is rotated around the pivot means 49 so that the lower portions of the left and right rear legs 34 and the lower rods 65 of the left and right push rods 35 approach each other. At the same time (in some cases, it is connected to the gripping means 53 by a flexible interlocking member 54 such as a belt)
The mounting bracket 55 moves upward, moves the pivot means 42 in the middle of the rear leg connecting member 44 upward, and brings the lower portions of the left and right rear legs 34 closer to each other.
【００４１】次いで連結杆６７を進行方向前方へ押し出
し、押棒３５の上方杆６６を下方杆６５の周りに前方へ
回転する。この結果、上方杆６６及び管体８９が下方杆
６５に対して回動する。このため、押棒３５が互いに中
心方向へ折り曲げ接近し同時に前脚３２が互いに中心方
向へ接近する。更に、前脚３２の接近に伴ってＸ形状に
配置されている第２牽引杆５８が立ち上げ状態となり、
座杆３８の先端部を立ち上げ、このため第１牽引杆５６
が立ち上げ状態にとなり、剛着部材４０の中間部を下方
へ押し畳む。Next, the connecting rod 67 is pushed forward in the traveling direction, and the upper rod 66 of the push rod 35 is rotated forward around the lower rod 65. As a result, the upper rod 66 and the tube 89 rotate with respect to the lower rod 65. Therefore, the push rods 35 are bent toward each other in the center direction, and the front legs 32 approach each other in the center direction at the same time. Further, with the approach of the front leg 32, the second tow rod 58 arranged in the X shape is in a rising state,
The leading end of the seat rod 38 is raised, so that the first tow rod 56
Is in a rising state, and the intermediate portion of the rigid attachment member 40 is folded down.
【００４２】更に前記座杆３８の先端部の立ち上げ移動
により前脚３２が後脚３４の方へ接近する。このとき前
脚３２及び後脚３４と緊張杆６０の外端部とを枢着して
いる２つの枢着手段を結ぶ線よりも、２つの緊張杆６０
の内端部同士を枢着している枢着手段の位置が常に下方
位置に有るように配置しているため、前記前脚３２と後
脚３４との接近によって、該２つの緊張杆６０の内端部
同士を枢着している枢着手段の位置が下方へ移動し、前
脚３２と後脚３４との接近を可能とする。このようにし
て、手押し車３０は、迅速に図２に示すような折り畳み
位置を取ることが出来るのである。Further, the front leg 32 approaches the rear leg 34 by the rising movement of the front end of the seat rod 38. At this time, the two tension rods 60 are connected to each other by a line connecting the two pivoting means pivotally coupling the front leg 32 and the rear leg 34 to the outer end of the tension rod 60.
Since the positions of the pivoting means for pivoting the inner ends of the two are always at the lower position, the approach of the front leg 32 and the rear leg 34 causes the two tension rods 60 The position of the pivot means pivoting the ends is moved downward, allowing the front leg 32 and the rear leg 34 to approach. In this way, the wheelbarrow 30 can quickly assume the folded position as shown in FIG.
【００４３】図２に示すような折り畳み位置から、図１
に示すような拡開位置を得るためには、上記操作とは反
対の操作によって容易に達成することが出来る。即ち、
図２に示す折り畳み位置から、単に押棒３５の上方杆６
６を下方杆６５の周りに後方へ回動する。これにより、
開閉杆５０、前脚連結部材４１、後脚連結部材４４、座
杆３８、第１牽引杆５６、第２牽引杆５８、緊張手段６
１、操作杆５２、等が拡開作業と反対の動作を行うこと
により本件発明装置は迅速に拡開位置を獲得するのであ
る。拡開作業が完了した時点でつまみ１２４を操作して
カムとカム受け部との嵌合を行い、ロック作業を行う。From the folded position as shown in FIG.
In order to obtain the widening position as shown in the above, it can be easily achieved by the operation opposite to the above operation. That is,
From the folded position shown in FIG.
6 is pivoted backward about the lower rod 65. This allows
Opening / closing rod 50, front leg connecting member 41, rear leg connecting member 44, seat rod 38, first towing rod 56, second towing rod 58, tensioning means 6
1, the operation rod 52 and the like perform an operation opposite to the expanding operation, so that the device of the present invention quickly acquires the expanding position. When the expanding operation is completed, the knob 124 is operated to engage the cam with the cam receiving portion to perform the locking operation.
【００４４】なお、制動装置は、車輪に接触することに
よる公知の摩擦制動装置を使用することが出来る。As the braking device, a known friction braking device that comes into contact with the wheels can be used.
【００４５】また、この実施例においてはスライダー部
材７４は、押棒３５を構成している下方杆６５に沿って
滑動するように記載しているが、勿論前脚３２を上方ま
で伸ばし、この前脚部分を滑動するようにすることも出
来る。Further, in this embodiment, the slider member 74 is described as sliding along the lower rod 65 constituting the push rod 35. However, the front leg 32 is naturally extended upward, and It can be made to slide.
【００４６】さらに折り畳み時の連結杆６７の動作は、
図４に示す長溝関係及び図６及び図７のカム及び立ち上
げ部の衝接部の関係を取り替えるだけで、簡単に、後方
へ引くことによって達成することが出来るようにするこ
とが可能である。The operation of the connecting rod 67 at the time of folding is as follows.
By simply changing the relationship between the long groove shown in FIG. 4 and the relationship between the cam and the abutting portion of the rising portion shown in FIGS. 6 and 7, it is possible to easily achieve this by pulling backward. .
【００４７】[0047]
【発明の効果】本件発明における手押し車３０において
は、下端部が前記前脚連結部材４１の一側（右側又は左
側）の剛性部材４０に枢着され上端部が他側（左側又は
右側）の座杆３８の前記枢着手段３６、３７の間に枢着
されている一対の第１牽引杆であって、図３において明
らかなように互いにＸ形状に交差するように配置してい
る一対の第１牽引杆５６より構成されている第１強化手
段５７と、下端部が一側（右側又は左側）の前脚３２の
前輪３１に近い箇所に枢着され上端部が他側（左側又は
右側）の座杆３８の前記枢着手段３７と他端（前端）と
の間に枢着されている一対の第２牽引杆であって、図３
において明らかなように互いにＸ形状に交差するように
配置している一対の第２牽引杆５８より構成されている
第２強化手段５９と、を有し、これらの強化手段５７、
５９により、本件の手押し車３０における左右の揺動又
は歪みはほぼ完全に解消している。In the handcart 30 of the present invention, the lower end is pivotally connected to the rigid member 40 on one side (right or left) of the front leg connecting member 41 and the upper end is located on the other side (left or right). A pair of first towing rods pivotally connected between the pivoting means 36, 37 of the rod 38, and a pair of first towing rods arranged so as to intersect each other in an X shape as is apparent in FIG. A first reinforcing means 57 constituted by one tow rod 56; and a lower end pivotally connected to a position near the front wheel 31 of the front leg 32 on one side (right or left) and an upper end on the other side (left or right). FIG. 3 shows a pair of second tow rods pivotally connected between the pivotal connection means 37 of the seat rod 38 and the other end (front end).
And a second reinforcing means 59 comprising a pair of second pulling rods 58 arranged so as to intersect with each other in the X shape.
As a result, the swing or distortion of the wheelbarrow 30 of the present case is almost completely eliminated.
【００４８】更に、本件発明の手押し車３０において
は、一端がそれぞれ一側（右側又は左側）の前脚３２及
び後脚３４へ枢着されている一対の緊張杆であって、他
端が互いにピン等によって枢動可能に連結されている一
対の緊張杆６０からなる緊張手段６１を有し、この緊張
手段６１により、本件の手押し車３０における前後方向
の揺動又は歪みはほぼ完全に解消している。Further, in the wheelbarrow 30 of the present invention, one end is a pair of tension rods which are respectively pivotally connected to the front leg 32 and the rear leg 34 on one side (right side or left side), and the other ends are pinned together. And a tensioning means 61 composed of a pair of tensioning rods 60 pivotally connected by means of the like. With this tensioning means 61, the swinging or distortion of the handcart 30 in the present case in the front-rear direction is almost completely eliminated. I have.
【００４９】こうして本件発明においては、不使用時に
は、前後方向及び幅方向の双方向へ円滑に折り畳むこと
が出来るにもかかわらず、拡開位置における前後方向及
び幅方向への揺れを効果的に防止することが出来る。Thus, in the present invention, when not in use, it is possible to effectively fold in the front-rear direction and the width direction at the widening position despite being able to be smoothly folded in both the front-rear direction and the width direction. You can do it.
【００５０】さらに連結杆６７が非常に簡単な構造を有
しており、常に円滑に作動し、また価格が安いという効
果がある。Further, since the connecting rod 67 has a very simple structure, there is an effect that it always operates smoothly and the price is low.
【００５１】また、本件発明は、前後方向及び幅方向へ
の折り畳みが可能なため、その収納スペースを極めて狭
くすることが出来る。Further, since the present invention can be folded in the front-rear direction and the width direction, the storage space can be extremely narrowed.
【００５２】更にこの発明は、前脚と押棒とを連結する
ことにより折り込み拡開機構が最小限の要素により達成
出来るようにした。このため、部品点数が減少し、折り
込み構造が単純化し、全体の重量が少なくなり、また折
り込み及び拡開機構が非常にスムースに達成出来るよう
になり、使用者にとって非常に取り扱い易い手押し車を
提供することに成功した。Further, according to the present invention, by connecting the front leg and the push rod, the folding-in / spreading mechanism can be achieved with a minimum number of elements. For this reason, the number of parts is reduced, the folding structure is simplified, the overall weight is reduced, and the folding and expanding mechanism can be achieved very smoothly, thereby providing a wheelbarrow which is very easy for the user to handle. Was successful.
【００５３】更に、本件発明を前後方向及び幅方向へ折
り畳んだ状態でも、前輪及び後輪が常に面に対して接触
しているので、直立状態を保持出来、収納場所への収納
及びそこからの取り出し、更には折り畳み及び拡開作業
を容易に達成することが出来る。Further, even when the present invention is folded in the front-rear direction and the width direction, the front wheel and the rear wheel are always in contact with the surface, so that the front wheel and the rear wheel can be maintained in an upright state, and can be stored in the storage place and stored therefrom. Removal, and furthermore, folding and unfolding operations can be easily achieved.
【図１】本件発明の拡開状態を示す側面図である。FIG. 1 is a side view showing an expanded state of the present invention.
【図２】本件発明の折り畳み状態を示す側面図である。FIG. 2 is a side view showing a folded state of the present invention.
【図３】本件発明の拡開状態を示す図であり、左半分が
前方から見た図であり、右半分が後方から見た図であ
る。FIG. 3 is a view showing an expanded state of the present invention, in which a left half is a view from the front and a right half is a view from the back.
【図４】本件発明の押棒の分解斜視図である。FIG. 4 is an exploded perspective view of the push rod of the present invention.
【図５】本件発明の押棒の構成を示すための説明図であ
り、Ａは下方杆と上方杆と管体との関係を示すための説
明図、ＢはＡの線Ａ−Ａ断面図、ＣはＡの線Ｂ−Ｂ断面
図である。FIG. 5 is an explanatory view showing the configuration of the push rod of the present invention, wherein A is an explanatory view showing the relationship between the lower rod, the upper rod, and the tubular body, B is a cross-sectional view taken along line AA of A, C is a sectional view taken along line BB of A.
【図６】本件発明の連結杆の構成を示すための説明図で
あり、Ａは連結杆の上面図、Ｂは連結杆の縦断面図、Ｃ
は直線状態を示す連結杆の横断面図、Ｄは折り曲げ状態
を示す連結杆の横断面図である。FIG. 6 is an explanatory view showing the configuration of the connecting rod of the present invention, wherein A is a top view of the connecting rod, B is a longitudinal sectional view of the connecting rod, and C
Is a cross-sectional view of the connecting rod showing a straight state, and D is a cross-sectional view of the connecting rod showing a bent state.
【図７】本件発明の連結杆の構成部品を示すための説明
図であり、Ａは連結杆の上方ハウジングを示す図、Ｂは
連結杆の下方ハウジングを示す図、Ｃは連結杆の第１滑
動体を示す斜視図、Ｄは連結杆の第２滑動体を示す斜視
図、Ｅは連結杆の起動体を示す斜視図である。FIGS. 7A and 7B are explanatory views showing components of the connecting rod according to the present invention, wherein A is a view showing an upper housing of the connecting rod, B is a view showing a lower housing of the connecting rod, and C is a first part of the connecting rod. FIG. 7 is a perspective view showing a sliding body, D is a perspective view showing a second sliding body of a connecting rod, and E is a perspective view showing an activation body of the connecting rod.
【図８】出願人が先に出願した手押し車の側面図であ
る。FIG. 8 is a side view of a wheelbarrow previously filed by the applicant.
【図９】図８の手押し車の折り畳み状態を示す側面図で
ある。FIG. 9 is a side view showing the wheelbarrow of FIG. 8 in a folded state.
【図１０】図８の手押し車の拡開状態を示す図であり、
左半分が前方から見た図であり、右半分が後方から見た
図である。10 is a view showing an expanded state of the handcart of FIG. 8,
The left half is a view from the front, and the right half is a view from the back.
【図１１】図８の手押し車に使用されている押棒の説明
図である。FIG. 11 is an explanatory view of a push rod used in the handcart of FIG. 8;
【図１２】図１１の押棒に使用されている連結杆の折り
込み状態を示す図である。FIG. 12 is a view showing a folded state of a connecting rod used for the push rod of FIG. 11;
【図１３】公知の連結杆の内部を示す図であり、Ａは折
り曲げ前の状態を示す図、Ｂは折り曲げ後の状態を示す
図である。FIG. 13 is a view showing the inside of a known connecting rod, in which A shows a state before bending, and B shows a state after bending.
３０：手押し車 ３２：前脚 ３４：後脚 ３５：押棒 ３８：座杆 ４１：前脚連結部
材 ４４：後脚連結部材 ５０：開閉杆 ５２：操作杆 ５４：連動部材 ５６：第１牽引杆 ５７：第１強化手
段 ５８：第２牽引杆 ５９：第２強化手
段 ６１：緊張手段 ６５：下方杆 ６６：上方杆 ６７：連結杆 ７４：スライダー部材 ７７：管状固定具 ８９：管体 ９２：接続杆 １００：上方フランジ １０１：下方フラ
ンジ １０２：第１滑動体 １０３：第１滑動
体 １０４：起動体30: wheelbarrow 32: front leg 34: rear leg 35: push rod 38: seat rod 41: front leg connecting member 44: rear leg connecting member 50: opening / closing rod 52: operating rod 54: interlocking member 56: first towing rod 57: first 1 Strengthening means 58: Second pulling rod 59: Second strengthening means 61: Tensioning means 65: Lower rod 66: Upper rod 67: Connecting rod 74: Slider member 77: Tubular fixture 89: Tubular body 92: Connecting rod 100: Upper flange 101: Lower flange 102: First sliding body 103: First sliding body 104: Activating body
Claims (3)
７によってそれぞれ枢着している左右一対の座杆３８
と、 一端が前脚３２へ対して枢着され他端が枢着手段３９に
よって互いに回動自在に支持されている一対の剛性部材
４０からなる前脚連結部材４１と、 一端が後脚３４へ対して枢着され他端が枢着手段によっ
て互いに回動自在に支持されている一対の剛性部材４３
からなる後脚連結部材４４と、 下端部が一側の後脚３４へ枢着され上端部が他側の押棒
３５へ枢着され中間部が枢着手段４９によって回動可能
に連結されている概ねＸ形状に配置されている開閉杆５
０と、 一端が各開閉杆５０の枢着手段４９より上方の部分に枢
動自在に連結され他端が枢着手段５１の周りに回動自在
に支持されている一対の操作杆５２と、 前記後脚３４の上端部を前脚３２若しくは押棒３５に対
して滑動可能に保持しているスライダー部材７４と、 を有している、前後方向及び幅方向の双方向に折り込み
可能な手押し車であって、 一端が一方の前脚３２及び後脚３４へ枢着され他端が互
いに枢着されている前後一対の緊張杆６０から構成され
ている左右一対の緊張手段６１と、 下端部が前記前脚連結部材４１の一側の剛性部材４０の
中心位置よりも枢着手段３９側に近い部分に枢着され上
端部が他側の座杆３８の前記枢着手段３６と枢着手段３
７の間に枢着されているＸ状に配置されている第１牽引
杆５６と、 下端部が一側の前脚３２へ枢着され上端部が他側の座杆
３８の前記枢着手段３７よりも前方位置へ枢着されてい
るＸ状に配置されている第２牽引杆５８と、 を備えていることを特徴とする手押し車。1. A pair of left and right front legs 32, a pair of left and right rear legs 34, a push rod 35, one end of which is connected to the rear leg 34, and an intermediate portion which is pivotally connected to the front leg 32.
A pair of right and left seat rods 38 pivotally connected by 7 respectively.
A front leg connecting member 41 comprising a pair of rigid members 40, one end of which is pivotally attached to the front leg 32 and the other end of which is rotatably supported by pivot means 39; A pair of rigid members 43 pivotally attached to each other and pivotally supported at the other end by pivoting means.
The lower end is pivotally connected to the rear leg 34 on one side, the upper end is pivotally connected to the push rod 35 on the other side, and the intermediate part is rotatably connected by the pivoting means 49. Opening / closing rod 5 arranged in an approximately X shape
A pair of operating rods 52, one end of which is pivotally connected to a portion of each opening / closing rod 50 above the pivoting means 49 and the other end of which is rotatably supported around the pivoting means 51; And a slider member 74 slidably holding the upper end of the rear leg 34 slidably with respect to the front leg 32 or the push rod 35, which can be folded in both the front-rear direction and the width direction. A pair of right and left tensioning means 61, each of which comprises a pair of front and rear tensioning rods 60, one end of which is pivotally connected to one of the front leg 32 and the rear leg 34, and the other end of which is pivotally connected to each other; The member 41 is pivotally attached to a portion closer to the pivoting means 39 than the center position of the rigid member 40 on one side, and the upper end is the pivoting means 36 and the pivoting means 3 of the seat rod 38 on the other side.
7, a first pulling rod 56 arranged in an X-shape, and a lower end pivotally attached to the front leg 32 on one side and an upper end provided on the pivoting means 37 of the seating rod 38 on the other side. A second tow rod 58 pivotally mounted to a position further forward than the second tow rod 58.
可能な手押し車であって、 左右一対の前脚３２と、 左右一対の後脚３４と、 前脚から上方へ伸びている縦行部と該縦行部の上端部を
連結している横行部とからなり、該横行部材の中間部が
折り曲がり可能となっている押棒３５と、 一端を後脚３４へ中間部を前脚３２へ枢着手段３６、３
７によってそれぞれ枢着している左右一対の座杆３８
と、 一端が前脚３２へ対して枢着され他端が枢着手段３９に
よって互いに回動自在に支持されている一対の剛性部材
４０からなる前脚連結部材４１と、 一端が後脚３４へ対して枢着され他端が枢着手段によっ
て互いに回動自在に支持されている一対の剛性部材４３
からなる後脚連結部材４４と、 下端部が前記前脚連結部材４１の一側の剛性部材４０の
中心位置よりも枢着手段３９側に近い部分に枢着され上
端部が他側の座杆３８の前記枢着手段３６と枢着手段３
７の間に枢着されているＸ状に配置されている第１牽引
杆５６と、 下端部が一側の前脚３２へ枢着され上端部が他側の座杆
３８の前記枢着手段３７よりも前方位置へ枢着されてい
るＸ状に配置されている第２牽引杆５８と、 下端部が一側の後脚３４へ枢着され上端部が他側の押棒
３５へ枢着され中間部が枢着手段４９によって回動可能
に連結されている概ねＸ形状に配置されている開閉杆５
０と、 一端が各開閉杆５０の枢着手段４９より上方の部分に枢
動自在に連結され他端が枢着手段５１の周りに回動自在
に支持されている一対の操作杆５２と、 一端が一方の前脚３２及び後脚３４へ枢着され他端が互
いに枢着されている前後一対の緊張杆６０から構成され
ている左右一対の緊張手段６１と、 前記後脚３４の上端部を前脚３２若しくは押棒３５に対
して滑動可能に保持しているスライダー部材７４と、 から構成されていることを特徴とする手押し車。2. A hand cart that can be folded in both directions in the front-rear direction and the width direction, comprising a pair of left and right front legs 32, a pair of left and right rear legs 34, and a longitudinal portion extending upward from the front legs. A push rod 35 comprising a transverse portion connecting the upper ends of the longitudinal portions, the middle portion of the transverse member being bendable; a pivoting means at one end to the rear leg 34 and the intermediate portion to the front leg 32; 36, 3
A pair of right and left seat rods 38 pivotally connected by 7 respectively.
A front leg connecting member 41 comprising a pair of rigid members 40, one end of which is pivotally attached to the front leg 32 and the other end of which is rotatably supported by pivot means 39; A pair of rigid members 43 pivotally attached to each other and pivotally supported at the other end by pivoting means.
And a lower end portion pivotally connected to a portion closer to the pivot means 39 than the center position of the rigid member 40 on one side of the front leg connection member 41, and an upper end portion of the rear leg connecting member 44 on the other side. Said pivoting means 36 and pivoting means 3
7, a first pulling rod 56 arranged in an X-shape, and a lower end pivotally connected to the front leg 32 on one side and an upper end connected to the pivoting means 37 of the seat rod 38 on the other side. An X-shaped second tow rod 58 pivotally attached to a more forward position, a lower end pivotally attached to the rear leg 34 on one side, and an upper end pivotally attached to the push rod 35 on the other side. The opening and closing rod 5 arranged in a substantially X-shape whose parts are rotatably connected by pivot means 49.
A pair of operating rods 52, one end of which is pivotally connected to a portion of each opening / closing rod 50 above the pivoting means 49 and the other end of which is rotatably supported around the pivoting means 51; A pair of right and left tensioning means 61 each composed of a pair of front and rear tensioning rods 60, one end of which is pivotally connected to one of the front leg 32 and the rear leg 34, and the other end of which is pivotally connected to each other; And a slider member 74 slidably held with respect to the front leg 32 or the push rod 35.
可能な手押し車であって、 左右一対の前脚３２と、 左右一対の後脚３４と、 前脚の上部へ連結されている下方杆６５、該下方杆６５
から上方に伸び次いで水平方向に伸びている上方杆６６
及び該上方杆６６の水平方向に伸びている部分を互いに
連結している連結部６７を有している概ねＵ字形状の押
棒３５と、 一端を後脚３４へ中間部を前脚３２へ枢着手段３６、３
７によってそれぞれ枢着している左右一対の座杆３８
と、 一端が左右の前脚３２へ対して枢動可能に装着され他端
が枢着手段３９によって互いに回動自在に支持されてい
る一対の剛性部材４０からなる前脚連結部材４１と、 一端が左右の後脚３４へ対して枢動可能に装着され他端
が枢着手段によって互いに回動自在に支持されている一
対の剛性部材４３により構成されている後脚連結部材４
４と、 下端部が前記前脚連結部材４１の一側の剛性部材４０の
中心位置よりも枢着手段３９側に近い部分に枢着され上
端部が他側の座杆３８の前記枢着手段３６と枢着手段３
７の間に枢着されているＸ状に配置されている第１牽引
杆５６と、 下端部が一側の前脚３２へ枢着され上端部が他側の座杆
３８の前記枢着手段３７よりも前方位置へ枢着されてい
るＸ状に配置されている第２牽引杆５８と、 下端部が一側の後脚３４へ枢着され上端部が他側の押棒
３５の下方杆６５へ枢着され中間部が枢着手段４９によ
って回動可能に連結されている概ねＸ形状に配置されて
いる開閉杆５０と、 一端が各開閉杆５０の枢着手段４９より上方の部分に枢
動自在に連結され他端が枢着手段５１の周りに互いに回
動自在に支持されている一対の操作杆５２と、一対の操
作杆５２の枢着手段５１と後脚連結部材４４の枢着手段
とを連結している連動部材５４と、 一端が一方の前脚３２及び後脚３４へそれぞれ枢着され
他端が互いに枢着されている前後一対の緊張杆６０から
構成されている左右一対の緊張手段６１と、 前記後脚３４の上端部を前脚３２若しくは押棒３５に対
して滑動可能に保持しているスライダー部材７４と、 から構成されていることを特徴とする手押し車。3. A hand cart that can be folded in both the front-rear direction and the width direction, comprising a pair of left and right front legs 32, a pair of left and right rear legs 34, and a lower rod 65 connected to an upper part of the front legs. The lower rod 65
An upper rod 66 extending upward from the upper part and then extending horizontally.
And a generally U-shaped push rod 35 having a connecting portion 67 connecting the horizontally extending portions of the upper rod 66 to each other, and one end pivotally connected to the rear leg 34 and the intermediate portion to the front leg 32. Means 36, 3
A pair of right and left seat rods 38 pivotally connected by 7 respectively.
A front leg connecting member 41 composed of a pair of rigid members 40, one end of which is pivotally attached to the left and right front legs 32 and the other end of which is rotatably supported by pivot means 39; The rear leg connecting member 4 is constituted by a pair of rigid members 43 pivotally mounted on the rear leg 34 and the other end is rotatably supported by the pivoting means.
And a lower end portion pivotally connected to a portion closer to the pivoting means 39 side than the center position of the rigid member 40 on one side of the front leg connecting member 41 and an upper end portion of the pivoting means 36 of the seat rod 38 on the other side. And pivot means 3
7, a first pulling rod 56 arranged in an X-shape, and a lower end pivotally connected to the front leg 32 on one side and an upper end connected to the pivoting means 37 of the seat rod 38 on the other side. An X-shaped second tow rod 58 pivotally attached to a position further forward than the lower end of the push rod 35 on the other side, with a lower end pivotally attached to one rear leg 34 and an upper end thereof. An opening / closing rod 50 which is pivotally connected and whose intermediate portion is rotatably connected by pivoting means 49, and which is arranged in a substantially X-shape; and one end pivotally moves to a portion above the pivoting means 49 of each of the opening / closing rods 50. A pair of operating rods 52 which are freely connected and the other ends of which are rotatably supported around the pivoting means 51; a pivoting means 51 of the pair of operating rods 52 and a pivoting means of the rear leg coupling member 44; And an interlocking member 54 connecting one end to one of the front leg 32 and the rear leg 34 and the other end pivotally connected to each other. A pair of right and left tensioning means 61 composed of a pair of front and rear tensioning rods 60, and a slider member 74 which slidably holds the upper end of the rear leg 34 with respect to the front leg 32 or the push rod 35. A wheelbarrow characterized by comprising:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330198A JP3949275B2 (en) | 1998-06-11 | 1998-06-11 | Wheelbarrow |
| US09/330,000 US6367823B1 (en) | 1998-06-11 | 1999-06-11 | Walking aid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16330198A JP3949275B2 (en) | 1998-06-11 | 1998-06-11 | Wheelbarrow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11348789A true JPH11348789A (en) | 1999-12-21 |
| JP3949275B2 JP3949275B2 (en) | 2007-07-25 |
Family
ID=15771234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16330198A Expired - Fee Related JP3949275B2 (en) | 1998-06-11 | 1998-06-11 | Wheelbarrow |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3949275B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008220643A (en) * | 2007-03-13 | 2008-09-25 | Zojirushi Baby Kk | Walking aid |
| CN111452863A (en) * | 2019-06-18 | 2020-07-28 | 刘玲芝 | Infant stroller |
-
1998
- 1998-06-11 JP JP16330198A patent/JP3949275B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008220643A (en) * | 2007-03-13 | 2008-09-25 | Zojirushi Baby Kk | Walking aid |
| JP4695108B2 (en) * | 2007-03-13 | 2011-06-08 | 象印ベビー株式会社 | Walking aid |
| CN111452863A (en) * | 2019-06-18 | 2020-07-28 | 刘玲芝 | Infant stroller |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3949275B2 (en) | 2007-07-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3040496B2 (en) | Folding stroller and folding mechanism used therein | |
| JP3939537B2 (en) | stroller | |
| US8696015B2 (en) | Stroller | |
| US5590896A (en) | Stroller | |
| US7871100B2 (en) | Collapsible stroller | |
| US10286940B2 (en) | Child stroller apparatus | |
| EP2441645B1 (en) | Baby buggy | |
| JP3980349B2 (en) | stroller | |
| KR20020002238A (en) | Baby car | |
| KR20030025196A (en) | Stroller | |
| WO2000037297A1 (en) | A stroller | |
| JP5100930B2 (en) | stroller | |
| JP5766772B2 (en) | stroller | |
| GB2399322A (en) | Foldable stroller | |
| JP2005271647A (en) | Stroller | |
| KR20040071618A (en) | Foldable Baby Carriage | |
| JP2015091696A (en) | Baby carriage | |
| JP4362667B2 (en) | Manual propulsion vehicle | |
| JPH11348790A (en) | Coupling bar used for push rod of handcart | |
| JPH11348789A (en) | Handcart | |
| JP2004090757A (en) | Foldable barrow | |
| JP5128713B2 (en) | stroller | |
| CN210391282U (en) | Baby carriage frame and baby carriage | |
| JP4275494B2 (en) | stroller | |
| JP5661063B2 (en) | stroller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20050607 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20050607 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20060818 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20060908 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20061017 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20070320 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20070418 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100427 Year of fee payment: 3 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100427 Year of fee payment: 3 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20100427 Year of fee payment: 3 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110427 Year of fee payment: 4 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120427 Year of fee payment: 5 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130427 Year of fee payment: 6 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20140427 Year of fee payment: 7 |
|
| LAPS | Cancellation because of no payment of annual fees |