CN101730640A - Auxiliary tool for rising over difference in level - Google Patents
Auxiliary tool for rising over difference in level Download PDFInfo
- Publication number
- CN101730640A CN101730640A CN200880018124A CN200880018124A CN101730640A CN 101730640 A CN101730640 A CN 101730640A CN 200880018124 A CN200880018124 A CN 200880018124A CN 200880018124 A CN200880018124 A CN 200880018124A CN 101730640 A CN101730640 A CN 101730640A
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- China
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- parts
- slide unit
- level
- auxiliary tool
- rising over
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B5/00—Accessories or details specially adapted for hand carts
- B62B5/02—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs
- B62B5/025—Accessories or details specially adapted for hand carts providing for travelling up or down a flight of stairs with gliding elements, e.g. skids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/14—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys
- B62B3/1476—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor characterised by provisions for nesting or stacking, e.g. shopping trolleys the main load support being a platform
Abstract
Carrying plate pusher (10) has possessed for the tabular loading parts (11) that load weight and has been installed in the place ahead of loading parts (11) bottom surfaces (11a) and the hand push parts (14) that the rear respectively has a pair of front-wheel that rotates freely (12) and trailing wheel (13) and operating personnel that loading parts (11) are advanced to target direction; And front one side of the bottom surface (11a) of loading parts (11) is equipped with auxiliary tool for rising over difference in level (20).Auxiliary tool for rising over difference in level (20) possessed the sledge shape parts (21) that are assemblied in loading parts (11) bottom surfaces (11a), be equipped with the slide unit (22) that can slide along the forward edge part guide rails (21g) of sledge shape parts (21), with make the elastomeric element (23) of above-mentioned slide unit 22 towards the place ahead application of force of sledge shape parts (21); And the forward edge of slide unit (22) is partly set up crusherbull zone material (24).
Description
Technical field
The present invention system is about hand propelled plate pusher etc., and the bottom of its loading parts has the various carrying plate pushers that can rotate freely wheel and the invention of the employed auxiliary tool for rising over difference in level of electric wheelchair.
Technical background
As the method for carrying of hand-baggage etc., previously since, use the various carrying plate pushers such as plate pusher of hand propelled widely, general go-cart has carrying plate pusher 90 as shown in figure 20.Such a carrying plate pusher 90 has possessed the loading parts 91 and a plurality of hand push parts 94 that rotate freely wheel (front-wheel 92 trailing wheels 93) and loading parts 91 are advanced to target direction that are installed in loading parts 91 bottom surfaces for lade.
Previously the carrying plate pusher 90 that uses can not have on the plane road of convex-concave unblocked, but as shown in figure 20, in the way of road 95, existence is during than the also big step 95a of the radius difference of height of front-wheel 92, even horizontal direction advances the hand push parts 94 of carrying plate pusher 90, can not climb up step 95a.At this moment, the operating personnel can take to forward to the front of the dull and stereotyped hand barrow 90 of carrying usually the forward edge of loading parts 91 is partly mentioned the corresponding method that waits, but is loading on the loading parts 91 under the situation of weight, is difficult to be able to lift.Therefore, be easy to climb up the method for the such step of entablement rank 95a as a comparison, developed step with steamboat (for example with reference to patent documentation 1) or climb step with auxiliary device (for example with reference to patent documentation 2).
Patent documentation 1: the spy opens 2000-309203 communique patent documentation 2: the spy opens the 2003-63407 communique
Disclosure of an invention
The problem that the invention desire solves
The step of record can be climbed up the high step of steamboat radius that assembles than plate pusher with steamboat in the patent documentation 1, constitutes the fulcrum also high step of step with a plurality of runner topmost runners of steamboat but can not climb up than being arranged in.In addition, this step is made of a plurality of runners with steamboat, and complex structure needs bigger assembly space.
Secondly, in the patent documentation 2 record climb the step auxiliary device, fan-shaped auxiliary wheel shakes by what supporting axis supported in the part system that the step function is climbed in performance, still can not climb up the step that is higher than the circular-arc edge of auxiliary wheel topmost.In addition, climb the step function, need fully guarantee the swing range of auxiliary wheel in order to bring into play it, so, identical with aforementioned step with steamboat, need bigger assembly space.
Therefore, assembled the plate pusher of these " step steamboats " or " climbing the step auxiliary device ", be difficult to avoid its overall height (walking surface plays the distance till the support board bottom surface) to uprise, the plate pusher single-piece maximizes so it not only brings, weight increases, the stability when reducing its walking sometimes.
In addition, when " step steamboat " or " climbing the step auxiliary device " is assemblied in the bottom surface of plate pusher loading parts, for giving full play to its function, must guarantee the height of aforementioned overall height according to aforementioned reason, so it is very difficult on the carrying plate pusher of the very low the past use of aforementioned overall height " step steamboat " or " climbing the step auxiliary device " to be installed.
The problem that desire of the present invention solves is to provide and can be assembled on the carrying plate pusher that previously uses simply, also climbs up the auxiliary tool for rising over difference in level than higher step with comparalive ease.
Solve the method for problem
Auxiliary tool for rising over difference in level of the present invention, system is assemblied in loading parts bottom surface and has auxiliary tool for rising over difference in level on the carrying plate pusher of wheel, with the sledge shape parts that possess front one side that is assemblied in aforementioned loading parts bottom surface, with the slide unit that can partly slide along the forward edge of aforementioned sledge shape parts is installed, is its feature with the elastomeric element that makes aforementioned slide unit towards the place ahead application of force of aforementioned sledge shape parts.
With the auxiliary tool for rising over difference in level of so constructing, a part parallel with the direct of travel of carrying plate pusher with the direction of slip of looking squarely the dynamic component of sliding in state and slide unit the state more forward than the front-wheel of carrying plate pusher is assembled to the bottom surface of loading parts, just is in the state more outstanding than front-wheel along the forward edge of the sledge shape parts possible slide unit that partly slides.Therefore, carrying plate pusher one is near the step on the path, and aforementioned slide unit is than the top edge part of the first butt step of front-wheel.But because of slide unit can partly slide along the forward edge of sledge shape parts, so words that the direction of advancing towards the carrying plate pusher pushes away, slide unit is under the state that is keeping with the top edge part butt of step, and the forward edge part of sledge shape parts is slided in the past along slide unit.
Thus, the leading portion and the sledge shape parts of the loading parts of carrying plate pusher move on the step simultaneously.Though front-wheel butt step, the front portion of loading parts have moved on the step, because of its difference of height is littler much than actual difference of height, front-wheel is easy to can climb up step, cross step.Therefore, also can easily climb up than higher step.
In addition, cooperate with the overall height of previously carrying plate pusher (walking surface plays the distance till the support board bottom surface), the bottom surface that the sledge shape parts of open ended model in its scope is mounted to front one side of loading parts gets final product, so previously the very low carrying plate pusher of overall height also can simply be installed.
At this, if the words of the device of reducing friction are installed between aforementioned sledge shape parts and aforementioned slide unit, slide unit is slided sleekly along the forward edge part of sledge shape parts, the thrust pressure that imposes on the carrying flat truck when climbing step is alleviated, make the rank operation of going up on the stage easier.
In addition, be configured to aforementioned loading parts bottom surface height to the part of the aforementioned slide unit of major general, just can climb up " step steamboat " previously and " climbing the step auxiliary device " can not climb up, and the step of the bottom surface equal extent of loading parts.And the position assembling that slide unit is further forwards high also can be climbed up than the step that loading parts are high.
On the one hand, the forward edge of aforementioned slide unit is partly set up the crusherbull zone parts, and is when carrying plate pusher near step, initial because the top edge of crusherbull zone parts butt step, its collision is relaxed, and can prevent the damage of slide unit and sledge shape parts.
Further, as the method that alleviates aforementioned friction, assembling ball or roller bearing free to rotate between aforementioned sledge shape parts and aforementioned slide unit will reduce significantly for the sliding resistance of the slide unit of sledge shape parts, can further alleviate to step on and climb the required thrust pressure of operation.
The effect of invention
By the present invention, can provide can be installed on simply on the carrying plate pusher previously, also can be relatively easy to climb up auxiliary tool for rising over difference in level than higher step.
The simple declaration of drawing
[Fig. 1] shows the lateral plan of the carrying plate pusher of the auxiliary tool for rising over difference in level that the invention process form has been installed.The part of the carrying plate pusher that [Fig. 2] is shown in Figure 1 is omitted front elevation.Near the auxiliary tool for rising over difference in level of the carrying plate pusher that [Fig. 3] is shown in Figure 1 a part of enlarged drawing.The lateral plan of the auxiliary tool for rising over difference in level that [Fig. 4] is shown in Figure 3.The section-drawing of the part of the auxiliary tool for rising over difference in level that [Fig. 5] is shown in Figure 4.A-A line cross sectional drawing among [Fig. 6] Fig. 5.R-R line cross sectional drawing among [Fig. 7] Fig. 5.[Fig. 8] displaying carrying plate pusher shown in Figure 1 is stepped on the side mode chart of the state of climbing.[Fig. 9] displaying carrying plate pusher shown in Figure 1 is stepped on the side mode chart of the state of climbing.[Figure 10] displaying carrying plate pusher shown in Figure 1 is stepped on the side mode chart of the state of climbing.[Figure 11] shows the part omission front elevation about other examples of carrying plate pusher.The part of the auxiliary tool for rising over difference in level of other examples of [Figure 12] the present invention is omitted lateral plan.A part of section-drawing of [Figure 13] auxiliary tool for rising over difference in level shown in Figure 12.B-B line cross sectional drawing among [Figure 14] Figure 12.The front elevation of the sledge shape parts of observing from the arrow C direction among [Figure 15] Figure 12 itself.[Figure 16] shows the side mode chart of climbing the step action of auxiliary tool for rising over difference in level shown in Figure 12.[Figure 17] shows the profile schema diagram of climbing a step action part of the auxiliary tool for rising over difference in level shown in Figure 12.[Figure 18] shows a part of section-drawing of other enforcement states that sledge shape parts guide rail is relevant.[Figure 19] is the front elevation of the sledge shape parts when the arrow E direction is observed from Figure 18 itself.[Figure 20] shows the lateral plan of previously carrying plate pusher.
Nomenclature
10, anterior 12 front-wheels, 13 trailing wheels of 10 * carrying plate pusher, 11 loading parts 11a bottom 11f 14 hand push parts 20,30 auxiliary tool for rising over difference in level 21,31 sledge shape parts 21a, 22b, 31a, 32b lead edge portion 21f, 31f flange 21g, 31g, 41g guide rail 21w net 22,32 skateboard part 22a, the disconnected spherical recess 23 of part 22e medial surface 22d before the 32a, 31gs, 36 elastomeric element 23a upper part 23b end portions 24,34 crusherbull zone parts, 25 screws, 26 passage 26a step 26b upper rims 27,37,37a ball 31b groove 31c, 41a front openings part 31ge, the spherical concave portion D1 of 36e rear end part 31s width 35 stop valve 36s fore-end 41b direction of slip D2 direct of travel H overall height
The best form that carries out an invention
According to drawing, example of the present invention is done following explanation.Fig. 1 is a lateral plan, the carrying plate pusher that shows the auxiliary tool for rising over difference in level that the invention process form has been installed, Fig. 2 is the clipped front elevation of carrying plate pusher shown in Figure 1, Fig. 3 is near the part enlarged drawing the auxiliary tool for rising over difference in level of carrying plate pusher shown in Figure 1, Fig. 4 is the lateral plan of auxiliary tool for rising over difference in level shown in Figure 3, Fig. 5 is an auxiliary tool for rising over difference in level section-drawing partly shown in Figure 4, and Fig. 6 is the cross sectional drawing of Fig. 5 A-A line, and Fig. 7 is a R-R line cross sectional drawing among Fig. 5.
As Fig. 1～shown in Figure 3, carrying plate pusher 10 is made of loading parts 11 the place ahead of the bottom 11a of loading tabular loading parts 11 of usefulness and loading parts 11 and each a pair of front-wheel 12 free to rotate of rear and trailing wheel 13 and operator's (not having diagram) to the hand push parts 14 that the purpose direction advances, in the front of the bottom of loading parts 11 11a one side auxiliary tool for rising over difference in level 20 is installed and is formed.
Auxiliary tool for rising over difference in level 20 is by the sledge shape parts 21 of front one side of the bottom 11a that is installed on loading parts 11 be installed on the slide unit 22 and elastomeric element 23 of slide unit 22 to the place ahead application of force of sledge shape parts 21 constituted slidably along the circular-arc lead edge portion 21a of sledge shape parts 21.In addition, as shown in Figure 6, the lead edge portion 22b of slide unit 22 goes up with crusherbull zone parts 24.
Auxiliary tool for rising over difference in level 20, as shown in Figure 3, the direction of slip D1 that looks squarely the slide unit 22 under the state is parallel with the direct of travel D2 of carrying plate pusher 10, and the lead edge portion 22a of slide unit 22 is installed on the 11a place, bottom of the loading parts 11 in front-wheel 12 the place aheads of carrying plate pusher 10.Therefore, the slide unit 22 and the crusherbull zone parts 24 that can slide along sledge shape parts 21 lead edge portion 21a are forwards outstanding state from front-wheel 12.
At this,, the structure of auxiliary tool for rising over difference in level 20, function etc. are described according to Fig. 4～Fig. 7.As Fig. 4～shown in Figure 6, sledge shape parts 21, be by the tabular net 21w that is in plumbness with the bottom 11a of loading parts 11 with this net 21w upper rim and the vertical tabular flange 21f that forms of this net 21w with constitute along netting the guide rail 21g that about flange disk-like shape that 21w lead edge portion 21a forms becomes.Sledge shape parts 21 tightly are attached to flange 21f on the bottom 11a of loading parts 11, with clipping several screws 25 that net 21w installs, tighten fixing towards bottom 11a.
As shown in Figure 6, the about c-shaped shape of the section of slide unit 22 partly is the encirclement shape with the lead edge portion 21a and the guide rail 21g of sledge shape parts 21 in the C shape.As shown in Figure 5, insert a plurality of balls 27 between guide rail 21g and the slide unit 22.And slide unit 22 lead edge portion 22b are with crusherbull zone parts 24.Crusherbull zone parts 24 are formed by the rubber material that section is approximate C shape.
As Fig. 5～shown in Figure 7, the side-glance shape of slide unit 22 is circular-arc, on the medial surface 22e of the front of guide rail 21g concave curve surface shape in opposite directions, is arranging along its long hand direction (direction of slip of slide unit 22) and a plurality ofly can rotate freely ball 27.Each ball 27, a plurality of spherical recess 22d that is located on the medial surface 22C of slide unit 22 accommodates, and can rotate freely, and the part of its outer ring has dashed forward from the internal diameter front openings part 22c littler than ball 27 diameters.When slide unit 22 slides along guide rail 21g, the effect of a factor ball 27 performances " ball bearing of main shaft ", the friction between guide rail 21g and the slide unit 22 significantly reduces, and slide unit 22 just can slide swimmingly along guide rail 21g.
As Fig. 4～shown in Figure 6, elastomeric element 23 is the reel spring, and its upper part 23a is sealed by the flange 21f of sledge shape parts 21, and end portion 23b is sealed by slide unit 22.Two elastomeric elements 23 are the symmetry shape configuration across the net 21w of sledge shape parts 21.As previously mentioned, elastomeric element 23 invests the place aheads of sledge shape parts 21 with slide unit 22, and slide unit 22 at ordinary times, are static shape when the bottom 11a of its fore-end 22a and loading parts 11 is in contact condition.
Secondly, according to Fig. 8～Figure 10, the step process of climbing of carrying plate pusher 10 is described.Any one of Fig. 8～Figure 10 is the side mode chart of the step state of climbing of the shown carrying plate pusher of Fig. 1.
As shown in Figure 8, carrying plate pusher 10 is attached to the crusherbull zone parts 24 on the slide unit 22 in a single day near the step 26a of passage 26, just can contact the upper rim 26b of step 26a earlier before front-wheel 12.Because of crusherbull zone parts 24 and slide unit 22 all can slide along the guide rail 21g of sledge shape parts 21, so, as long as will carry plate pusher 10 promotes to direct of travel D2 direction, as shown in Figure 9, crusherbull zone parts 24 with the upper rim 26b state of contact of step 26a under, the guide rail 21g of sledge shape parts 21 will slide along slide unit 22.
Therefore, the leading portion 11f of the loading parts 11 of carrying plate pusher 10 and sledge shape parts 21 1 26b of upper edge portion of step 26a in the same way move, and as shown in Figure 9, front-wheel 12 is connected to the 26b of upper edge portion of step 26a.At this moment, because the anterior 11f of loading parts 11 moves on step 26a, its difference of height diminishes than actual difference of height, therefore, as shown in figure 10, the 26b of upper edge portion of front-wheel 12 easy climb steps 26a, thus cross step 26a.Front-wheel 12 1 is crossed step 26a, because the recuperability of elastomeric element 23, crusherbull zone parts 24 will together revert to original position with slide unit 22.Like this, if auxiliary tool for rising over difference in level 20 is installed on the carrying plate pusher 10, than the radius of the front-wheel 12 of carrying plate pusher 10, the step 26a that difference of height is bigger also can cross easily.
In addition, as shown in Figure 1, with reference to the overall height H of previously carrying plate pusher 10 (above passage 26 to the distance between the bottom surface 11a of loading parts 11), front one side that the sled shape parts 21 that will may hold size in this overall height H scope are installed to the bottom surface 11a of loading parts 11 gets final product, and therefore also can be installed to easily on the lower the past carrying plate pusher 10 of overall height H.
And, as Fig. 5～shown in Figure 7, owing between sled shape parts 21 and slide unit 22, also had several balls that can freely rotate 27 as the method for reducing friction, slide unit 22 can be free to slide along the guide rail 21g of the 21a of forward position portion that prizes shape parts 21.Therefore, when crossing step, can alleviate the thrust pressure that puts on carrying plate pusher 10, make that to climb the step operation easy.In addition, owing to there are several balls 27, the wearing and tearing of slide unit 22 or guide rail 21g also can reduce, and are therefore durable in use.
Shown in Fig. 1,3, on auxiliary tool for rising over difference in level 20, form slide unit 22 a part leading section 22a with crusherbull zone parts 24, be configured to bottom surface 11a equal height with loading parts 11.Therefore, even the intransitable bottom surface 11a steps equally highly of in the past " step steamboat " and " climbing the step auxiliary device " with loading parts 11 also can cross easily.And, if slide unit 22 is configured in the locational words higher than loading parts 11 the place aheads, also can cross the step higher than loading parts 11.
In addition, owing to set up crusherbull zone parts 24 at the forward position of slide unit 22 22b of, as shown in Figure 8, carrying plate pusher 10 is near step 26a the time, originally crusherbull zone parts 24 are connected to the 26b of upper edge portion of step 26a, owing to relaxed this impact, can prevent the damage of slide unit 22 or sled shape parts 21 etc.
Next, according to Figure 11, describe with regard to other example.Figure 11 shows about the part of other examples of carrying plate pusher to omit front elevation.And, in Figure 11, added the part of the identical symbol of the symbol put down in writing with Fig. 1～Figure 10, be that the component part with aforementioned carrying plate pusher 10 and auxiliary tool for rising over difference in level 20 has same configuration, effect, in this description will be omitted.
Among the carrying plate pusher 10x shown in Figure 11, one side has been installed three auxiliary tool for rising over difference in level 20 in the front of the bottom surface of loading parts 11 11a.If make this structure, when crossing step, these three auxiliary tool for rising over difference in level 20 work at the same time, can improve the stability of carrying plate pusher 10x in the process of climbing up and over, therefore can prevent the deflection of both sides to the left and right.In addition, because the weight that auxiliary tool for rising over difference in level 20 is born in the process of climbing up and over is broken up into three parts, can alleviate the load of each auxiliary tool for rising over difference in level 20.
Next, according to Figure 12～Figure 17, describe with regard to other examples of the present invention.Figure 12 is that the part of the auxiliary tool for rising over difference in level of other true forms of the present invention is omitted lateral plan, Figure 13 is the fragmentary cross-sectional view of auxiliary tool for rising over difference in level shown in Figure 12, Figure 14 is a B-B line cross sectional drawing among Figure 12, Figure 15 is the front elevation of the observed sled shape parts of arrow C direction from Figure 12 itself, Figure 16 is the side mode chart of climbing the step action of expression auxiliary tool for rising over difference in level shown in Figure 12, and Figure 17 is the fragmentary cross-sectional view of climbing the step action of expression auxiliary tool for rising over difference in level shown in Figure 12.And the component part of having set up part with the same symbol of Fig. 1～Figure 16 among Figure 12～Figure 17 and being with aforementioned carrying plate pusher 10 and auxiliary tool for rising over difference in level 20 has identical construction, effect, omits this explanation at this.
As shown in figure 12, auxiliary tool for rising over difference in level 30 is included in sled shape parts 31 that front one side of the bottom surface 11a of loading parts 11 installs and the slide unit 32 that can slide along the circular-arc forward position 31a of portion of sled shape parts 31 and with the elastomeric element 23 of slide unit 32 towards sled shape parts 31 the place ahead application of forces.In addition, shown in Figure 13,14, set up crusherbull zone parts 34 along the 32b of forward position portion of slide unit 32.
Auxiliary tool for rising over difference in level 30, identical with auxiliary tool for rising over difference in level 20 shown in Figure 3, the direction of slip D1 that looks squarely the slide unit 32 under the state is parallel with the direct of travel D2 of carrying plate pusher (not shown), and the leading section 32a of slide unit 32 is more installing at the bottom surface of loading parts 11 11a on the position in the place ahead than the front-wheel of carrying plate pusher.Sled shape parts 31 are the bottom surface 11a that flange 31f are close to loading parts 11, by make clip the net plural screw (not shown) that 31w disposed to bottom surface 11a do tighten fixing.
At this,, describe with regard to the structure of auxiliary tool for rising over difference in level 30, effect etc. according to Figure 12～Figure 15.As shown in Figure 12 and Figure 13, sled shape parts 31 comprise the tabular net 31w that the bottom surface 11a with loading parts 11 is disposed when meeting at right angle, for the formed tabular flange 31f that meets at right angle at the upper edge portion of this net 31w and net 31w, along the guide rail 31g of the approximate flange of the formed omission of the 31a of forward position portion of net 31w.
At the circular-arc groove 31b of one side formation in the front of guide rail 31g along its long hand direction, in this groove 31b, arranging the plural ball 37 that can freely rotate and be free to slide, in the end under the situation that the rear portion of Duan ball 37a joins stop valve 35 is installed.Stop valve 35 can be free to slide along groove 31b, and 36 of elastomeric elements are installed in the groove 31b inside at its rear.The top 36s of elastomeric element 36 is controlled by stop valve 35, and rearward end 36e is controlled by the rear end 31ge of guide rail 31g.Elastomeric element 36 is between stop valve 35, and the top 31gs along groove 31b towards guide rail 31g has set up plural ball 37a, 37.Therefore, slide unit 32 and crusherbull zone parts 34 just may be done slip along the guide rail 31g of sled shape parts 31.
As shown in figure 14, the section of slide unit 32 becomes the shape of approximate C, the part of approximate C shape surrounds the 31a of forward position portion and the guide rail 31g of sled shape parts 31, forms a kind of at guide rail 31g groove 31b and the groove 32c of slide unit 32 between also exist plural ball 37, the state of 37a.In addition, aforesaid crusherbull zone parts 34 have also been set up at the forward position of slide unit 32 32b of.Crusherbull zone parts 34 are to become the elastomeric material of approximate C shape formed by section.As shown in figure 15, the width 31s of the 31c of front openings portion of groove 31b is because less than the diameter of ball 37,37a, the external diameter of elastomeric element (reel spring) 36 and the width of stop valve 35, so these parts can not break away from from groove 31b.
As shown in figure 12, because elastomeric element 23 is with the place ahead application of force of slide unit 32 to sled shape parts 31, the 32a of common slide unit 32 its front ends stops under the state with the bottom surface 11a that is connected to loading parts 11.In addition, because elastomeric element 36 be by stop valve 35 with plural ball 37a, 37 to the leading section 31gs of the guide rail 31g application of force, so plural ball 37a, 37 is positioned at the position of the forward end 31gs of groove 31b.
Next, according to Figure 16,17, describe with regard to the action of auxiliary tool for rising over difference in level 30.Figure 16 is the side mode chart of climbing the step action of expression auxiliary tool for rising over difference in level 30, and Figure 17 is a part of profile schema diagram of Figure 16.
As previously mentioned, the crusherbull zone parts 34 of auxiliary tool for rising over difference in level 30 and slide unit 32 can be done slip along the guide rail 31g of sled shape parts 31.Therefore, as shown in figure 16, be contacted with at crusherbull zone parts 34 under the state of the 26b of upper edge portion of step 26a, if carrying plate pusher (figure is expression not) is pushed to direct of travel D2, when crusherbull zone parts 34 still are connected to the 26b of upper edge portion of step 26a, the guide rail 31g of sled shape parts 31 will do slip along slide unit 22.
Thus, the anterior 11f of the loading parts 11 of carrying plate pusher will move to the upper edge of the step 26a 26b of portion jointly with sled shape parts 31, and the same with the situation of Fig. 9, front-wheel 12 is connected to the 26b of upper edge portion of step 26a.At this moment, the anterior 11f of loading parts 11 moved to step 26a above, compare with the difference of height of reality because of its difference of height and to diminish, therefore identical with Figure 10 situation, front-wheel 12 is the 26b of upper edge portion of climb steps 26a easily, thereby crosses step 26a.
Identical with the situation of Figure 10, front-wheel 12 1 is crossed step 26a, and slide unit 32 and crusherbull zone parts 34 are along with the recuperability of elastomeric element 23 is got back to original position, and simultaneously, the ball 37 of plural number is also along with the recuperability of elastomeric element 36 has been got back to original position.Like this, auxiliary tool for rising over difference in level 30 is installed on the carrying plate pusher, also can easily crosses than the big step 26a of front-wheel radius difference of height that carries plate pusher.
On auxiliary tool for rising over difference in level 30, when the guide rail 31g of sledge shape parts 31 slides along slide unit 32, bring into play [ball bearing of main shaft] effect because the ball of marginal plural number 37 rolls, so friction drag is very little, the guide rail 31g of sledge shape parts just can successfully roll.For this reason, when crossing step, the pressure that imposes on the carrying plate pusher just reduces significantly, climbs the step operation and is very easy to thereby make.In addition, because the ball 37 of plural number is in freely rolls and be free to slide, so the abrasion of slide unit 32 and guide rail 31g is little and durable in use.Other action effect and auxiliary tool for rising over difference in level 20 are same.
Then illustrate about other examples such as sledge shape parts guide rails according to Figure 18.Figure 18 is the fragmentary cross-sectional view of other relevant examples of expression sledge shape parts guide rail, and Figure 19 is the front elevation from the sledge shape parts of Figure 18 upward arrow E direction observation itself.On aforesaid auxiliary tool for rising over difference in level 30, using the represented guide rail 31g of Figure 15, but be not limited thereto.The guide rail 41g that also can use Figure 18, Figure 19 to represent.
As Figure 18, shown in Figure 19, on the front of guide rail 41g along its long hand direction (direction of slip of slide unit 32) but arranging the ball 37 of free rolling plural number, each ball 37 can free rollably be housed in the ball shape recess 41b of the plural number of being located at guide rail 41g.Its peripheral part is exposed from the front openings part 41a of the internal diameter littler than the diameter of ball 37.The ball 37 of plural number is being brought into play the effect of [ball bearing of main shaft], and therefore, the part of guide rail 31g press upper rail 41g as shown in figure 15, and slip material part 32 also can be slided smoothly along guide rail 41g, bringing into play with aforementioned equally climb the step function.
Utilize possibility on the industry
Auxiliary tool for rising over difference in level of the present invention can be installed in addition extensive use on the various carrying plate pushers such as handcart or electric wheelchair or the small-sized electric car etc.
Claims (5)
1. be to be installed on loading parts bottom surface auxiliary tool for rising over difference in level on the carrying plate pusher of wheel is arranged, the slide unit that it is characterized by the sledge shape parts of front one side that possesses the bottom surface that is installed on aforementioned loading parts and install and can be free to slide and make aforementioned slide unit force in the elastomeric element in aforementioned sledge shape parts the place ahead along the lead edge portion of aforementioned sledge shape parts.
2. be located at the auxiliary tool for rising over difference in level that has request item 1 record that alleviates the friction function between aforesaid sledge shape parts and the aforementioned slide unit.
3. be set to the bottom surface height request item 1 or 2 auxiliary tool for rising over difference in level of being put down in writing of aforementioned loading parts to the part of the aforementioned slide unit of major general.
4. set up the auxiliary tool for rising over difference in level of any one record of the request item 1 to 3 of crusherbull zone parts in the lead edge portion of aforementioned slide unit.
5. as aforesaid means of reducing friction, but between aforesaid sledge shape parts and aforementioned slide unit configuration free rolling ball or ball bearing of main shaft.Be recorded in any one auxiliary tool for rising over difference in level of request item 2 to 4.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP147287/2007 | 2007-06-01 | ||
| JP2007147287 | 2007-06-01 | ||
| PCT/JP2008/000683 WO2008146434A1 (en) | 2007-06-01 | 2008-03-21 | Auxiliary tool for rising over difference in level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101730640A true CN101730640A (en) | 2010-06-09 |
Family
ID=40074712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880018124A Pending CN101730640A (en) | 2007-06-01 | 2008-03-21 | Auxiliary tool for rising over difference in level |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPWO2008146434A1 (en) |
| CN (1) | CN101730640A (en) |
| WO (1) | WO2008146434A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139982A (en) * | 2017-05-27 | 2017-09-08 | 靖江市华东船舶机械制造有限公司 | A kind of mechanical handcard capable of striding-over threshold |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822559B (en) * | 2012-12-28 | 2017-05-24 | Thk株式会社 | Seat slide device for vehicle |
| JP2019137211A (en) * | 2018-02-09 | 2019-08-22 | 学校法人 東洋大学 | Caster unit |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52126837A (en) * | 1976-04-15 | 1977-10-25 | Tokyo Electric Co Ltd | Dual wheel caster |
| JPS6090060U (en) * | 1983-11-28 | 1985-06-20 | トヨタ自動車株式会社 | Transport trolley with step-over mechanism |
| JPH0444460Y2 (en) * | 1988-05-12 | 1992-10-20 | ||
| JPH0218767U (en) * | 1988-07-22 | 1990-02-07 | ||
| JPH0537636U (en) * | 1991-09-13 | 1993-05-21 | 孝美 山口 | A device for overcoming a step on a traveling body with a leg wheel |
| JP4148710B2 (en) * | 2002-07-17 | 2008-09-10 | カネソウ株式会社 | Wheelchair access device for wheelchair |
-
2008
- 2008-03-21 CN CN200880018124A patent/CN101730640A/en active Pending
- 2008-03-21 JP JP2009516161A patent/JPWO2008146434A1/en active Pending
- 2008-03-21 WO PCT/JP2008/000683 patent/WO2008146434A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107139982A (en) * | 2017-05-27 | 2017-09-08 | 靖江市华东船舶机械制造有限公司 | A kind of mechanical handcard capable of striding-over threshold |
| CN107139982B (en) * | 2017-05-27 | 2023-02-17 | 靖江市华东船舶机械制造有限公司 | Threshold handcart is striden to mechanical type |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2008146434A1 (en) | 2010-08-19 |
| WO2008146434A1 (en) | 2008-12-04 |
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Application publication date: 20100609 |