CN100549901C - Handle connecting device - Google Patents
Handle connecting device Download PDFInfo
- Publication number
- CN100549901C CN100549901C CNB2005800295810A CN200580029581A CN100549901C CN 100549901 C CN100549901 C CN 100549901C CN B2005800295810 A CNB2005800295810 A CN B2005800295810A CN 200580029581 A CN200580029581 A CN 200580029581A CN 100549901 C CN100549901 C CN 100549901C
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- CN
- China
- Prior art keywords
- handle
- gear
- lever shaft
- carriage
- fixed
- 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.)
- Expired - Fee Related
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/082—Controlling members for hand actuation by rotary movement, e.g. hand wheels having safety devices, e.g. means for disengaging the control member from the actuated member
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
- A61G7/0507—Side-rails
- A61G7/0512—Side-rails characterised by customised length
- A61G7/0513—Side-rails characterised by customised length covering particular sections of the bed, e.g. one or more partial side-rail sections along the bed
- A61G7/0514—Side-rails characterised by customised length covering particular sections of the bed, e.g. one or more partial side-rail sections along the bed mounted to individual mattress supporting frame sections
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G1/00—Stretchers
- A61G1/04—Parts, details or accessories, e.g. head-, foot-, or like rests specially adapted for stretchers
- A61G1/048—Handles
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/08—Apparatus for transporting beds
Abstract
Lever shaft (50) is fixed on the base portion of handle (6).Axle (57) is fixed on the lever shaft (50), tail-bracket (71) is installed on the axle (57) free to rotately.First gear part (53) is formed on lever shaft (50) goes up, second gear part (73) is formed on the tail-bracket (71), gear ring (98) is installed in the outside of first, second gear part (53,73).Interior all sides at gear ring (98) form the internal tooth (99) that meshes with first, second gear part (53,73).Gear ring (98) passes through return spring (106) to first gear part (53) the side application of force.If make gear ring (98) overcome acting force to second gear part (73) side shifting, then remove the engagement of first gear part (53) and internal tooth (99), lever shaft (50) tail-bracket (71) relatively becomes state free to rotate, can pack up handle (6).
Description
Technical field
The present invention relates to be used for the syndeton of the operating grip of hospital bed conveying device etc., especially relate to be applicable to the operating physical force that detects handle, according to this operating physical force driving motor, supply with the otherwise effective technique of handle of the electric transmission device of auxiliary force.
Background technology
In hospital or nurse facility, factory, warehouse etc., use more beddo or stretcher, meals delivery with chassis, load and unload the conveying device of carrying out power-assisted with electronic chassis etc. by motor.For such conveying device, generally be provided with on the body shell of Caster by electric motor driven driving wheel being equipped with, this driving wheel is supplied with the power-assisted when mobile.The controller that installation motor or power supply are used with battery, Motor Control on body shell etc.On body shell, if bed is then installed mat, if chassis is then installed the loading table top.
And installation is used to make the conveying device handle of move left and right forwards, backwards on body shell.Most handles generally can suitably be packed up when not using according to physique or stance adjustment its height and position of operator.For example, the control lever that the bed conveying device of scalable operation height and position is used is disclosed in Japanese kokai publication hei 8-317953 communique (patent documentation 1).
In patent documentation 1, a pair of control lever is arranged on operating portion rotationally, adjust under the situation of operation height and position of control lever, to the latch-release button carry out pressing operation, make stop pin leave lever shaft the fastening hole, unlock.Then, the rotating operation bar, adjust the rotational angle of handle part, remove pushing when arriving maneuverable height the latch-release button.By like this, the fastening parts are to moving axially, and the fastening hole of stop pin and lever shaft is chimeric, and the position is being adjusted in the handle part fastening of control lever.And such adjusting action also can be used when packing up handle when not carrying.
And most electric transmission devices detect the power that is applied on the handle, carry out power-assisted control.In TOHKEMY 2001-171524 communique (patent documentation 2) and TOHKEMY 2001-180500 communique (patent documentation 3), disclose waving angle by potentiometer detecting operation bar and produced operating means corresponding to the electric boosted electric vehicle of bar operational ton.In the device of patent documentation 2,3, control lever is maintained at the neutral position by the compression spring on the fore-and-aft direction that is installed in bar respectively.The bottom of control lever is connected with the turning axle of potentiometer by driver part.When the acting force that overcomes compression spring, when control lever is operated, the turning axle of potentiometer rotates, exports the signal corresponding to the anglec of rotation.
Patent documentation 1: Japanese kokai publication hei 8-317953 communique
Patent documentation 2: TOHKEMY 2001-171524 communique
Patent documentation 3: Japan and spy open the 2001-180500 communique
Summary of the invention
On the other hand, in general, the bar majority that is installed on the operating grip of conveying device is long, in the very large power of root effect of bar.Usually, bar combines with lever shaft at its root, and under the effect of the moment that is produced by the bar operating physical force, forceful action is in this joint portion.But, in position adjusting mechanism, close owing to form keying between lever shaft and the control lever as patent documentation 1, therefore,, need thick lever shaft and stop pin in order to ensure the full intensity of joint portion, have the problem that device maximizes.
And in the position adjusting mechanism that utilizes pin, if remove the fastening of pin, then control lever might utilize deadweight and rotate.Therefore, packing up under the situation of operating grip, having the problem that bar can not be stowed in regularly assigned position.And if a pressing lever is not simultaneously removed, then bar might carry out quick acting when removing, and has the problem that is not easy to position operation.
The purpose of this invention is to provide and utilize shirtsleeve operation easily to pack up, and the high handle syndeton of the intensity of joint portion.
Handle syndeton of the present invention has: the lever shaft that is fixed on handle base; Axle is fixed on the above-mentioned lever shaft, along the center of rotation direction of principal axis extension of above-mentioned lever shaft; Be installed in the carriage on the above-mentioned axle free to rotately; And link, have can be formed on first gear on the above-mentioned lever shaft and be formed on the gear teeth of second gearing mesh on the above-mentioned carriage, remove itself and above-mentioned first gear meshing by this link is moved along above-mentioned center of rotation direction of principal axis.
In the present invention, owing to the rotation that can select lever shaft by the operation of link, therefore, can pack up handle by rotational action around lever shaft, and, the rotation of handle can be suppressed by gear meshing, therefore, can with handle high strength be fixed on and pack up direction.And,, therefore, improved from the lever shaft of lever shaft when carriage transmits lever operated power and the strength of joint of carriage, and reduced and shaken owing to link lever shaft is connected with the carriage one by axle.Therefore, guaranteed that also the transfer strength of the power of direction of operating, the accuracy of detection of operating physical force also increase.
In above-mentioned handle syndeton, can also further be provided with along above-mentioned center of rotation direction of principal axis, to first elastomeric element of the above-mentioned first gear direction to the above-mentioned link application of force.Like this, link is not easy to break away from first gear, engagement more reliably between the link and first gear.And the link and first gearing mesh making under the effect of the acting force of first elastomeric element under the state that breaks away from first gear also can make the link of having removed with first gearing mesh automatically return to engagement.Therefore, under the situation of the rotatable handles by moving of link, link restores, locks rotation automatically afterwards.
In above-mentioned handle syndeton, at the arranged outside of above-mentioned lever shaft and the cap assembly of above-mentioned link one body action, and, the display part of the engagement that shows above-mentioned first gear and above-mentioned link is set on this cap assembly.In this case,, therefore, make link and cap assembly when the releasing direction moves, can not have only cap assembly to move to the engagement direction because when removing the engagement of first gear and link, cap assembly and link move integratedly.Therefore, can prevent to show because of the mistake of the inconsistent display part that produces of action of cap assembly and link.
In above-mentioned handle syndeton, also detent can be set, when the rotational action of carrying out between above-mentioned lever shaft and the above-mentioned carriage, pay rotational resistance.In this case, also can make above-mentioned detent have second elastomeric element and brake component; Second elastomeric element is installed on the above-mentioned lever shaft, pushes above-mentioned carriage along above-mentioned center of rotation direction of principal axis; Brake component has been installed on the above-mentioned axle with being limited to move axially, is crimped on the crimping face that is formed at above-mentioned carriage under the effect of the acting force of above-mentioned second elastomeric element.By such detent is set, can prevent after the engagement of removing first gear and link, handle is because of the problem that its deadweight falls, handle rotates accidentally, can prevent the unlock state of handle thus.
In above-mentioned handle syndeton, also above-mentioned lever shaft, above-mentioned axle and above-mentioned carriage can be formed hollow-core construction, on above-mentioned lever shaft, above-mentioned axle and above-mentioned carriage, form the hole that can insert the energising distribution respectively.Like this, can carry out the setting of electric distribution by the inside of this syndeton portion, the wiring that need not bother is handled and just electric parts such as switch can be arranged on the handle.In this case, also the seal member that above-mentioned electric distribution is installed with the watertight state can be installed on the above-mentioned hole of above-mentioned carriage with the watertight state.Like this, can prevent that the liquid runs down distribution from flowing out to the outside from carriage inside, for example, be installed at carriage under the situation on the operating physical force pick-up unit of handle, can prevent that liquid from entering the pick-up unit side.
In above-mentioned handle syndeton, also can on above-mentioned carriage, osculum be set, this osculum is opened in the side end face of the above-mentioned lever shaft of above-mentioned carriage, is communicated with the inner space of above-mentioned carriage.Like this, under the situation of cleaning handles such as water,, can not put aside motionlessly yet, but outside this syndeton, discharge by osculum even liquid enters in the carriage.
In above-mentioned handle syndeton, also above-mentioned carriage can be installed on the operating physical force pick-up unit of the operating physical force that detects above-mentioned handle.In this case, also can lever operated direction be set to different directions, like this, can suppress to rotate the skew of the null position of the operating physical force pick-up unit that causes because of handle with the handle rotation direction.
And, also can make the aforesaid operations force checking device have tubular shaft, torsion bar and potentiometer; Above-mentioned tubular shaft is supported on the fixed part that is arranged in the housing and an end of fixing above-mentioned carriage free to rotately; Above-mentioned torsion bar inserts in the above-mentioned tubular shaft, distolateral being fixed on the said fixing parts, another distolateral being fixed on the above-mentioned tubular shaft; Above-mentioned potentiometer is connected with above-mentioned torsion bar.
And, also can make the aforesaid operations force checking device be provided with the transmission gear of the other end side that is fixed in above-mentioned torsion bar and be fixed on the input shaft of above-mentioned potentiometer and with the follower gear of above-mentioned transmission gear engagement, the number of teeth of above-mentioned follower gear is less than the number of teeth of above-mentioned transmission gear.Like this, the displacement of handle is delivered to potentiometer by direct geared, do not resemble the helical spring pick-up unit of existing use in the middle of across bar, can suppress to reduce because of shaking of bar makes accuracy of detection.And, because the torsional capacity of torsion bar is exaggerated, to the potentiometer transmission, therefore, can more correctly detect the work angle of handle.
In above-mentioned handle syndeton, also above-mentioned handle can be installed on the conveying device of band power-assisted, the conveying device of this band power-assisted is paid the auxiliary force of travelling by electric motor driven driving wheel.
According to handle syndeton of the present invention, have: the lever shaft that is fixed on handle base; Axle is fixed on the lever shaft, along the center of rotation direction of principal axis extension of lever shaft; Be installed in the carriage on the axle free to rotately; And link, have can be formed on first gear on the lever shaft and be formed on the gear teeth of second gearing mesh on the carriage, remove itself and first gear meshing by this link is moved along the center of rotation direction of principal axis.Owing to adopt this structure, can select the rotation of lever shaft by the operation of link, therefore, can pack up handle by rotational action around lever shaft, and, the rotation of handle can be suppressed by gear meshing, so, can with handle high strength be fixed on and pack up direction.And,, therefore improved, and reduced and shaken from the lever shaft of lever shaft when carriage transmits lever operated power and the strength of joint of carriage owing to be connected lever shaft and carriage with link by axle.Therefore, guaranteed that also the transfer strength of the power on the lever operated direction, the accuracy of detection of operating physical force also increase.
And, make link along first elastomeric element of center of rotation direction of principal axis by further setting to the first gear direction application of force, make link be not easy to break away from first gear, can mesh more reliably between the link and first gear.And the link and first gearing mesh making under the effect of the acting force of first elastomeric element under the state that breaks away from first gear also can make the link of having removed with first gearing mesh automatically return to engagement.Therefore, even under the situation of rotatable handles, can make also afterwards that link restores automatically, the rotation of lock handle by moving of link.
And, the detent of paying rotational resistance when being arranged on the rotational action of carrying out between lever shaft and the carriage can prevent after the engagement of removing first gear and link, handle is because of its deadweight falls, handle rotates unintentionally or handle becomes unlock state.
And, by lever shaft, axle and carriage are formed hollow-core construction, the hole that can insert the wildcard line is arranged on them, can carry out the configuration of electric distribution by the inside of this syndeton portion, and the wiring that need not bother is handled and just electric parts such as switch can be arranged on the handle.And, on the slotting hole that is connected with electric distribution that the seal member by will electric distribution being installed with the watertight state is installed in carriage with the watertight state, can prevent that liquid runs down electricity distribution from flowing out to the outside from carriage inside.
Description of drawings
Fig. 1 is the front view that the hospital of the handle connecting device of the suitable one embodiment of the present of invention of expression uses the formation of beddo.
Fig. 2 is the summary vertical view of the beddo of presentation graphs 1.
Fig. 3 is the stereographic map of formation of drive division of the beddo of presentation graphs 1.
Fig. 4 is the key diagram of the syndeton of expression driven unit and lifting actuator.
Fig. 5 is the key diagram that expression is installed in the formation of the handle on the beddo of Fig. 1.
Fig. 6 is the cut-open view of formation of the connecting portion of expression handle and sensor device.
Fig. 7 is the front view of expression handle and sensor device.
Fig. 8 is the partial, partially-cross-sectioned side-elevation view of expression handle and sensor device.
Fig. 9 is the cut-open view of the inner structure of expression sensor device.
Figure 10 (a) is that side view, (b) of lever shaft is the front view of lever shaft.
Figure 11 is the front view of axle.
Figure 12 (a) is the cut-open view of formation at the junction surface of expression lever shaft and tail-bracket, (b) is the front view of disk spring that is used for the junction surface of (a), (c) is the front view of stainless steel ring, (d) is the front view of resin ring.
Figure 13 (a) is that side view, (b) of tail-bracket is the front view of tail-bracket.
Figure 14 (a) is the cut-open view of the formation of expression detent, (b) is the front view that is used for the resin ring of detent, (c) is the front view of stainless steel ring.
Figure 15 (a) is that front view, (b) of gear ring is the cut-open view of gear ring.
Embodiment
Below, be elaborated with regard to embodiments of the invention with reference to the accompanying drawings.Fig. 1 is the front view that the hospital of the handle connecting device of the suitable one embodiment of the present of invention of expression uses the formation of beddo, and Fig. 2 is the summary vertical view of the beddo of presentation graphs 1.Fig. 1,2 hospital are made of drive division 1 and bed portion 2 with beddo.Motor and various gearing are contained in drive division 1, and mat 3 is placed in the portion 2.Bed portion 2 is supported by the arm 4 that is installed on the drive division 1.Arm 4 drives the height and the posture of coming shift bed portion 2 by the knee-action of arm 4 by drive division 1.
Fig. 3 is the stereographic map of the formation of expression drive division 1.Drive division 1 is provided with driven unit 12 and lifting actuator 13 etc. on the framework 11 of steel.The framework 11 of steel is by being provided with between the main frame 11a of direction extension forwards, backwards and the connection main frame 11a and constituting to the connecting link 11b of horizontal extension.At the both ends of main frame 11a, side is installed Caster 14 respectively below.On framework 11, plastic cover 15 is installed as illustrated in fig. 1, Fig. 3 represents to unload the state behind this cover 15.
Vehicle speed sensor (not having diagram) also is set on driven unit 12.Vehicle speed sensor is by the multipole magnetized magnet on the turning axle that is installed in motor 17 and be arranged near this magnet and along with the magnetic detecting element of pole change output pulse signal constitutes.If motor 17 rotations are corresponding to the rotational speed of motor, from magnetic detecting element output rotational pulse signal.The rotational speed of the rotational speed of motor 17 and driving wheel 21 has correlationship, detects the motor rotational speed by utilizing vehicle speed sensor, can detect driving wheel 21 rotational speed, be the speed of a motor vehicle.
The upright pylon 24 of establishing on motor base (frame) 16.Pylon 24 is connected with lifting actuator 13.Driven unit 12 moves up and down by the action of lifting actuator 13, thereby driving wheel 21 contacts, separates with ground (tread) 25.Fig. 4 is the key diagram of the syndeton of expression driven unit 12 and lifting actuator 13.As shown in Figure 4, the base portion 24a of pylon 24 is supported on the arm 27 by pivot 26 free to rotately.Arm 27 is fixed on the connecting link 11b, motor base (frame) 16 with can pivot 26 be the center up and down the state that shakes of direction (directions X of Fig. 4) be supported on the framework 11.
Slotted hole 28 is formed at the top at pylon 24.Be installed on the push rod 29 pin 31 forwards, backwards direction (left and right directions among the figure) be inserted in slotted hole 28 movably.Push rod 29 direction forwards, backwards is installed in the top of pylon 24 movably, is connected with the push rod 33 of lifting actuator 13 by spring 32.Lifting actuator 13 is driven by DC motor 34, and along with the rotation of DC motor 34, push rod 33 is along the Y direction action of Fig. 4.The left part of the lifting actuator 13 among the figure can joltily be supported on the carriage 35 that is fixed on the connecting link 11b.
Like this, motor base (frame) 16 is connected with lifting actuator 13 by spring 32.If lifting actuator 13 actions, push rod 33 elongations then via spring 32, push rod 29 and pin 31, pylon 24 is pressed, thereby motor base (frame) 16 are that the center turns right in Fig. 4 with pivot 26.Like this, driving wheel 21 is 25 side shiftings earthward, push ground 25 with the ground connection load of regulation.On the other hand, if push rod 33 shortens, then motor base (frame) 16 is that the center turns left with pivot 26.Like this, driving wheel 21 built on stilts 25, rise, be stowed in the position of built on stilts 25.
The battery 36 that power supply uses, the controller 37 that Motor Control is used, the gearing 38 that control bed posture is used etc. also are set on framework 11.Battery 36 is to supply powers such as motor 17,34, controller 37, gearings 38.Controller 37 is connected with controller panel 8 (with reference to Fig. 5), indicates, carries out the drive controlling of each motor and gearing etc. according to operator's input.
On the other hand, in the both sides of bed portion 2 safety guard 5 is installed.The handle 6 of the mobile usefulness of bed is installed in the front (user's head side) of bed portion 2.In addition, the front and back here be meant bed vertically, sidepiece is meant and the vertical two ends of the Width (left and right directions) of quadrature.As shown in Figure 5, about a handle 6 (6L, 6R) respectively is set, be connected with the sensor device 7 (operating physical force pick-up unit) of the leading section that is arranged on a portion 2.Sensor device 7 detects the operational load that is applied on the handle 6 when bed is mobile.Controller panel 8 is arranged between the handle 6, is provided with power switch 8a and emergency stop switch 8b, bed direction switch 8c, LED display panel 8d etc.
Fig. 6 is the cut-open view of formation of the connecting portion of expression handle 6 and sensor device 7, Fig. 7 is the front view of expression handle 6 and sensor device 7, Fig. 8 is the partial, partially-cross-sectioned side-elevation view of expression handle 6 and sensor device 7, and Fig. 9 is the cut-open view of the inner structure of expression sensor device 7.As shown in Figure 6, the lever shaft 50 of stainless steel is installed in the base portion of handle 6.Figure 10 (a) is that side view, (b) of lever shaft 50 is its front views, and the 6a of bar portion of handle 6 is installed on the lever shaft 50.Lever shaft 50 is made of the handle installation portion 52 on body 51, the outstanding sidepiece that is arranged on body 51 and first gear part 53 that is arranged on the left end side of body 51 in Figure 10 (a).Handle installation portion 52 forms cylindrical shape, and bar portion 6a end is pressed into and is fixed on its periphery.Cover 54a, 54b are contained in outward on the connecting portion of lever shaft 50 and handle installation portion 52.Wiring hole 55 is installed in the central part of handle installation portion 52.
Periphery at body 51 forms large-diameter portion 51a and minor diameter part 51b.Large-diameter portion 51a is formed on the outside (right side in Figure 10 (a)) of body 51, and minor diameter part 51b is formed on the inboard (left side in Figure 10 (a), sensor device 7 sides) of body 51.In the inboard of minor diameter part 51b, with the interface of large-diameter portion 51a, form the two protuberance 70a of place at circumferencial direction.Large-diameter portion 51a by minor diameter part 51b side, form two places to axially extended extension 70b at circumferencial direction.
The tail-bracket 71 of sensor device 7 be installed in free to rotately the axle 57 that is fixed on the lever shaft 50 another is distolateral.Figure 13 (a) is that side view, Figure 13 (b) of tail-bracket 71 is the front view of tail-bracket 71.Tail-bracket 71 is made of the body 72 and second gear part 73 that is formed on the right-hand member side of body 72 in Figure 13 (a).In the left part of body 72 depression section being set is semicircular axle fixed part 74.Tail-bracket 71 and the lever shaft 50 same hollow shapes that form, axle 57 insert axis hole 75 by parts of bearings 76 free to rotately.
End face central authorities in second gear part 73 form circular recess 77.Shown in Figure 12 (a), the resin ring 78 of synthetic resin system (for example fluororesin) is housed in the recess 77.Second gear part 73 is identical with first gear part 53, also has the equally spaced outstanding notch part 82 that the tooth portion 81 of gear teeth 79 is set and only removes 79 formation of a gear teeth.Notch part 82 circumferencial direction with 90 degree at interval five equilibriums be formed on everywhere, be formed on vertical direction and horizontal direction and stagger on the positions of 20 degree.
Inside at body 72 forms stage portion 83, at this detent 84 is set.Figure 14 is the key diagram of the formation of expression detent 84.Shown in Figure 14 (a), in detent 84, the resin ring 85 of synthetic resin system (for example fluororesin) and stainless steel ring 86 be outer to be inserted in from the front end of the outstanding axle 57 of axis hole 75.Shown in Figure 14 (c), at interior all side formation locator protrusionss 87 of stainless steel ring 86.Stainless steel ring 86 is installed under the chimeric state of the grooving 60 that makes locator protrusions 87 and axle 57, can't be installed in rotationally on the axle 57.C shape ring 88 is installed in the outside of stainless steel ring 86.C shape ring 88 is installed on the C shape annular groove 61 of axle 57.
Inside at body 72 also is provided with seal member installation portion 89, at this inner seal member 91 of rubber system is installed.The distribution 92 that stretches out from sensor device 7 sides is installed on this inner seal member 91, and inner seal member 91 forms the step-like round-ended cylinder shape that has, and peripheral part 91a is chimeric to be fixed on the inwall 89a of seal member installation portion 89.Seal bore 93 is formed on the central authorities of inner seal member 91, and distribution 92 is inserted in this with the watertight state.Distribution 92 is connected with distribution 95 by connector 94.Distribution 95 is connected with operating switch 96 (with reference to Fig. 7) on the handle portion 6a that is arranged on handle 6 by the inner space of wiring hole 58, connecting hole 59, wiring hole 55 and handle 6.
Like this, in this syndeton,, distribution 92,95 can be configured in connecting portion inside by wiring hole 58, connecting hole 59, wiring hole 55 etc. are set.Like this, operating switch 96 can be arranged on the handle portion 6b of handle 6, and, can make this distribution not be exposed at handle and connect up peripherally.And, also can guarantee sealing by inner seal member 91 to sensor device 7, therefore, improved the water proofing property in the sensor device 7, need not expensive resistant material, can reduce the cost of device.
On the axis hole 75 of body 72, osculum 97 is set.Shown in Figure 13 (b), osculum 97 is opened in the end face of second gear part 73, extends along axis hole 75 to be set to stage portion 83.The peristome of stage portion 83 sides of osculum 97 is communicated with the inner space of axle 57.And osculum 97 forms the taper of tilting towards the end face of second gear part 73 downwards.Like this, accumulating in the water that waits in the axle 57 discharges from the peristome of second gear part, 73 sides by osculum 97.
This bed is made hospital bed, so, exist to whole bed clean, the situation of sterilization.At this moment, rinse water might flow into the connecting portion of handle 6 and sensor device 7, if place no matter then might become and get rusty or work bad reason.Therefore, this water that will accumulate in connecting portion inside by osculum 97 from the end face of second gear part 73 to the outer discharge of device, thereby prevent the fault that causes because of the rinse water of accumulating.
Gear ring (link) 98 is installed in the outside of second gear part 73 of first gear part 53 of lever shaft 50 and tail-bracket 71.Figure 15 (a) is that front view, Figure 15 (b) of gear ring 98 is its cut-open view.As shown in figure 15, gear ring 98 forms drum, and portion forms internal tooth (gear teeth) 99 within it.On internal tooth 99, tooth portion 101 and engaging protrusion 102 are set with shape corresponding to first gear part 53, second gear part 73.Gear teeth 103 is equally spaced outstanding to be arranged in the tooth portion 101, can mesh with the gear teeth 62,79 of first, second gear part 53,73.Engaging protrusion 102 forms gear teeth 103 continuous shape that make adjacency, forms the quartern with 90 intervals of spending at circumferencial direction.Engaging protrusion 102 can form with the notch part 64,82 of first, second gear part 53,73 with engaging.
Peripheral shape at gear ring 98 becomes sleeve mounting groove 104.Plastic sleeve 105 (cap assembly) is installed on sleeve mounting groove 104.Sleeve 105 forms the drum that a part is cut away, and is installed in the periphery of the body 51 of lever shaft 50, is housed in minor diameter part 51b part.Form notch part (not having diagram) in the outer end of sleeve 105, at the protuberance 70a of this notch part engaging minor diameter part 51b and the extension 70b of large-diameter portion 51a.Like this, sleeve 105 forms one with gear ring 98 and moves to be arranged on the outside of lever shaft body 51 at axial (left and right directions in Fig. 6) state that can move freely.And direction is chimeric fixes because gear ring 98 relatively rotates with tail-bracket 71, and therefore, sleeve 105 moves with 51 interlocks of control lever body on sleeve mounting groove 104.
Return spring 106 (first elastomeric element) is installed in the left part of gear ring 98.One distolateral and gear ring 98 butts of return spring 106, another distolateral and step-like spring-loaded portion 107 butts that are formed on the periphery of tail-bracket 71.Under the effect of return spring 106, to the direction (right in Fig. 6) of lever shaft 50 to gear ring 98 reinforcings.Like this, gear teeth 103 and gear teeth 62,79 engagements, maintenance gear ring 98 under engaging protrusion 102 and state that notch part 64,82 engages, gear ring 98 is not easy to come off from first gear part 53.
Periphery at tubular shaft 111 forms two place's knurled portions 114.Tubular shaft 111 utilizes this knurled portions 114, combines with the axle fixed part 74 of tail-bracket 71 under the state that can't rotate.It is fixing with carriage 115 that axle fixed part 74 clips tubular shaft 111, by making the inner peripheral surface of knurled portions 114 engaging-in fixed parts 74 and carriage 115, tail-bracket 71 can't be rotatably fixed on the tubular shaft 111.
In the inboard of tubular shaft 111 torsion bar 112 is set.Two ends at torsion bar 112 form sawtooth portion 116.One distolateral (being left end side in Fig. 9) of torsion bar 112 can't be rotatably fixed on the fixed part 109 by fixed head 117.Another of torsion bar 112 distolateral (being the right-hand member side in Fig. 9) is fixed on the right-hand member of tubular shaft 111.Week also forms sawtooth in the right-hand member of tubular shaft 111, and sawtooth portion 116 and this engagement of torsion bar 112 are fixing with tubular shaft 111.That is, a distolateral fixed part 109 that is fixed in of torsion bar 112, another distolateral tubular shaft 111 that is fixed in.Therefore,, then fixed a distolateral torsion bar 112 and reversed, produced torsional deflection with the rotation of tubular shaft 111 if handle 6 shakes, tubular shaft 111 is rotated thereupon.
And, being fixed with transmission gear 118 in the right-hand member side of torsion bar 112, this transmission gear 118 forms one with torsion bar 112 and is rotated, and amplifies the torsional capacity of torsion bar 112.Transmission gear 118 and no illustrated follower gear engagement.Follower gear is fixed on the input shaft (not having diagram) of potentiometer 113.In sensor device 7, the torsional deflection of torsion bar 112, be that the displacement of handle 6 is delivered to potentiometer 113 by direct geared.Therefore, at this bar is not set the helical spring pick-up unit, therefore can suppresses the decline of the accuracy of detection that shaking of bar cause owing to do not resemble existing the utilization.
The external sealing part 119 of rubber system is installed in the outside of housing 108.The one distolateral peristome outside that is fixed on housing 108 of external sealing part 119, another distolateral outside that is fixed on the body 72 of tail-bracket 71.Like this, both allowed the action of tail-bracket 71, can guarantee the water proofing property in the housing 108 again along with the operation of handle 6.
For the electronic conveying bed of such formation, when making bed mobile, in order to prevent maloperation, pressing operation switch 96 one sides are pushed handle 6.Like this, as shown in Figure 8, handle 6 direction inclination forwards, backwards under the effect of its operational load is shaken.Along with the action of handle 6, the lever shaft 50 that combines with handle 6 also begins action.Lever shaft 50 is connected with this tail-bracket 71 with the state that can't rotate with respect to tail-bracket 71 by gear ring 98, and lever shaft 50 forms one, begins action with handle 6 with tail-bracket 71.
At this moment, lever shaft 50 and tail-bracket 71 combine by gear meshing, can guarantee the high strength with respect to the power that acts on the handle rotation direction.And, because lever shaft 50 is connected by axle 57 with tail-bracket 71 and the periphery of first, second gear part 53,73 utilizes gear ring 98 fixing, therefore, the direction even relative handle fascinates, the support strength of handle 6 closes to compare also with keying and is improved largely.
If handle 6 direction forwards, backwards fascinates, tubular shaft 111 rotates thereupon.If tubular shaft 111 rotates, then on torsion bar 112, produce torsional deflection, 118 of transmission gears rotate this addendum modification.The rotation of transmission gear 118 is delivered on the potentiometer 113 by follower gear.Be applied between the torsional deflection of operational load on the handle 6 and torsion bar 112 and have correlationship, also have correlationship between the output of the torsional deflection of torsion bar 112 and potentiometer 113.That is, from the signal of potentiometer 113 outputs corresponding to the operational load of handle 6.Therefore, change, can detect the operational load of handle 6 by the output of catching potentiometer 113.
From the signal conveys of the operational load of the corresponding handle 6 of potentiometer 113 output to controller 37.And, in controller 37, stored the output valve of potentiometer 113 in advance, promptly represented the corresponding relation of the relation of the operational load of handle 6 and the most appropriate the travel auxiliary force corresponding, motor 17 grades to be carried out drive controlling by with reference to this corresponding relation with it.
And the working direction of bed is controlled in the output that also can compare left and right sides sensor device 7.For example, detecting under the big situation of the power of pushing left side handle 6L, the operator makes will be with the judgement of bed to right-hand turning, improve motor 17L output, that bed is turned to is right-hand.On the contrary, under the big situation of the power of pushing right side handle 6R, the operator makes the judgement that bed will be turned to left, improve motor 17R output, make bed to turning to left.
On the other hand, this bed can be packed up handle 6 after end is carried.In this case, the operator at first make sleeve 105 overcome return spring 106 acting force, move to axially (in Fig. 6 for left to), the latched position from Fig. 6 shown in the solid line moves to the releasing position shown in the dot-and-dash line.Like this, gear ring 98 breaks away from first gear part 53, and the engagement of releasing gear teeth 103 and gear teeth 62 and engaging protrusion 102 engage with notch part 64.That is, remove the bonding state between lever shaft 50 and the tail-bracket 71, lever shaft 50 forms the state that freely rotates relative to tail-bracket 71.
If lever shaft 50 forms the state that freely rotates with respect to tail-bracket 71, then in the formation that existing keying is closed, lever shaft 50 might become free state, utilize deadweight to rotate.And,, therefore, utilize freely rotating of its confining force restriction lever shaft 50 on the connecting portion of lever shaft 50 and tail-bracket 71 because detent 84 is set for this handle 6.That is to say that sleeve 105 moves, lever shaft 50 also remains on present position even make, can prevent that handle from toppling over accidentally.
Therefore, if handle 6 is rotated, then lever shaft 50 rotates relative to tail-bracket 71, and the notch part 64 of lever shaft 50 and the notch part of tail-bracket 71 form the state of mutual skew.At this moment, engaging protrusion 102 can not engage with the notch part 64 of lever shaft 50, and gear ring 98 is maintained at removes the position.If further operating grip 6, make it to rotate 90 degree, notch part 82 will be relative with the notch part 64 of next position.Like this, the engaging protrusion 102 of gear ring 98 becomes the state that can engage with new notch part 64, turns back to latched position at the effect lower ring gear 98 of the acting force of return spring 106.
Like this, if handle 6 is turned to the stowed position shown in the dot-and-dash line among Fig. 7, then in this locking rotational action.In addition, acknowledgement window 121 (display part) being set on sleeve 105, is red display when gear ring 98 is positioned at the releasing position, is green demonstration when gear ring 98 is positioned at latched position, thereby can distinguish the state of handle 6 at a glance.When gear ring 98 was positioned at the releasing position, handle 6 formed rotating state, reminded the operator to note not touching sleeve 105 or exerting all one's effort turning handle 6 with hand unintentionally by the demonstration of this acknowledgement window 121.And, as mentioned above,, sleeve 105 moves because forming one with gear ring 98, and therefore, gear ring 98 can not move to removing the position separately, can not represent the locking and the latch-release state of handle 6 mistakenly.
Like this, the operator makes sleeve 105 move, make lever shaft 50 to become free state, if under this state rotating operation handle 6, the next clamped position after rotating 90 degree then, sleeve 105 automatically resets, thereby makes handle 6 become lock-out state once more.That is, in this syndeton, handle 6 can rotate by the mobile of sleeve 105, and the stowed position in regulation can automatically lock rotation.Therefore, can carry out the operation of packing up of handle 6 easily, at this moment,, therefore also improve operability because handle 6 can at random not rotate because of deadweight.
And, by can packing up handle 6 around the rotational action of lever shaft 50, and, but also the operating physical force transfer device of this lever shaft 50 when carrying action used.That is, in this syndeton, handle collapsed configuration and operating physical force transferring structure can be realized the miniaturization of handle connecting portion by integrated.And, because the intensity of connecting portion improves, shakes minimizing, therefore, can guarantee to pack up of the transmission of the fixing and power of direction (rotation direction) to direction of operating (direction of fascinating), both formed small-scale structure, and the accuracy of detection of reliability height, operating physical force increases also.
And, in this syndeton, handle 6 pack up the lever operated direction rectangular direction of direction when forming with conveying shown in Figure 8.The setting of the zeroing of carrying out when therefore, detecting lever operated the load is not easy to go wrong.When carrying out the detection of operational load, carry out the zeroing of handle position usually, and obtain operational load from the handle turning angle as benchmark.But,, operate then lack of proper care zero point easily in case pack up packing up under the direction situation consistent of handle with direction of operating.And for to forming the handle 6 that the direction at right angle is packed up with direction of operating, owing to can at direction of operating big load variations not take place because of packing up operation, therefore, need not carry out the neutral position that complicated adjustment operation just can keep handle once more, detect correct operational load.
The present invention is not limited to the above embodiments, can carry out various variations certainly in the scope that does not exceed its aim.
For example, in the above-described embodiment, handle syndeton of the present invention is used for hospital bed is that example is represented, but it uses object to be not limited to bed, no matter whether be electronic, can be widely applicable for the delivery of stretcher, meals with chassis, wheelchair, loading and unloading with common conveying devices such as electronic chassis.And the present invention also carries out the common handle that the position is adjusted applicable to the needs beyond the conveying device.
And, in the above-described embodiment, be set to example with engaging protrusion 102 and notch part 64,82 with 90 intervals of spending and represent, be not limited to 90 degree but set pitch, also can suitably be set at 45 degree etc. at interval.And, engaging protrusion is not set and the setting pitch of dwindling notch part 64,82, also very effective as the method for adjusting handle angle according to operator's physique like this.In this case because can compactly chimeric gear ring 98, therefore than the hole compactly is set on control lever hole 50, the adjustment stowed position more helps improving intensity.
In addition, in the above-described embodiment, though on a motor base (frame) 16, driven unit 12 is set, carry out the lifting action of driving wheel 21 by an independent lifting actuator 13, but also single driven unit 12 can be used for each driving wheel 21, it is loaded on the different motor base (frame) 16, it is moved respectively by two lifting actuators 13.
Claims (12)
1. handle syndeton has:
Be fixed on the lever shaft of handle base;
Axle is fixed on the described lever shaft, along the center of rotation direction of principal axis extension of described lever shaft;
Be installed in the carriage on the described axle free to rotately; And
Link, have can be formed on first gear on the described lever shaft and be formed on the gear teeth of second gearing mesh on the described carriage, remove itself and described first gear meshing by this link is moved along described center of rotation direction of principal axis;
At the arranged outside of described lever shaft and the cap assembly of described link one body action, and, the display part of the engagement that shows described first gear and described link is set on this cap assembly.
2. handle syndeton as claimed in claim 1 is characterized in that, is provided with along described center of rotation direction of principal axis and to first elastomeric element of the described first gear direction to the described link application of force.
3. handle syndeton as claimed in claim 1 or 2 is characterized in that, the detent of paying rotational resistance when being arranged on the rotational action of carrying out between described lever shaft and the described carriage.
4. handle syndeton as claimed in claim 3 is characterized in that described detent has second elastomeric element and brake component; Second elastomeric element is installed on the described lever shaft, pushes described carriage along described center of rotation direction of principal axis; Brake component has been installed on the described axle with being limited to move axially, is crimped on the crimping face that is formed at described carriage under the effect of the acting force of described second elastomeric element.
5. handle syndeton as claimed in claim 1 is characterized in that, described lever shaft, described axle and described carriage form hollow-core construction, and described lever shaft, described axle and described carriage have the hole that can insert the energising distribution respectively.
6. handle syndeton as claimed in claim 5 is characterized in that, will be installed on the described hole of described carriage with the watertight state with the seal member that the watertight state is installed described electric distribution.
7. handle syndeton as claimed in claim 1 is characterized in that described carriage has osculum, and this osculum is opened in the described lever shaft side end face of described carriage, is communicated with the inner space of described carriage.
8. handle syndeton as claimed in claim 1 is characterized in that, described carriage is installed on the operating physical force pick-up unit of the operating physical force that detects described handle.
9. handle syndeton as claimed in claim 8 is characterized in that, described operating physical force pick-up unit has tubular shaft, torsion bar and potentiometer; Described tubular shaft is supported on the fixed part that is arranged in the housing and an end of fixing described carriage free to rotately; Described torsion bar inserts in the described tubular shaft, distolateral being fixed on the described fixed part, another distolateral being fixed on the described tubular shaft; Described potentiometer is connected with described torsion bar.
10. handle syndeton as claimed in claim 9, it is characterized in that, described operating physical force pick-up unit have described another the distolateral transmission gear that is fixed in described torsion bar and be fixed on the input shaft of described potentiometer and with the follower gear of described transmission gear engagement, the number of teeth of described follower gear is less than the number of teeth of described transmission gear.
11., it is characterized in that described handle is installed on the conveying device of band power-assisted as each described handle syndeton among claim 1,2, the 4-10, the conveying device of this band power-assisted is paid the auxiliary force of travelling by electric motor driven driving wheel.
12. handle syndeton as claimed in claim 3 is characterized in that, described handle is installed on the conveying device of band power-assisted, and the conveying device of this band power-assisted is paid the auxiliary force of travelling by electric motor driven driving wheel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004257495 | 2004-09-03 | ||
| JP257495/2004 | 2004-09-03 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101010651A CN101010651A (en) | 2007-08-01 |
| CN100549901C true CN100549901C (en) | 2009-10-14 |
Family
ID=35999902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800295810A Expired - Fee Related CN100549901C (en) | 2004-09-03 | 2005-08-25 | Handle connecting device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP4860473B2 (en) |
| CN (1) | CN100549901C (en) |
| WO (1) | WO2006025245A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101008944B1 (en) * | 2010-03-29 | 2011-01-17 | 한국생산기술연구원 | Lifting device having ring-shaped controller |
| US8745786B2 (en) | 2010-11-10 | 2014-06-10 | Hill-Rom Services, Inc. | Siderail assembly for patient support apparatus |
| US8621688B2 (en) | 2010-12-13 | 2014-01-07 | Hill-Rom Services, Inc. | Siderail assembly for patient support apparatus |
| JP5904035B2 (en) * | 2012-06-29 | 2016-04-13 | 株式会社豊田自動織機 | Transport assist device |
| KR101486881B1 (en) * | 2012-10-11 | 2015-01-29 | 한국생산기술연구원 | Moving Type Lifting Apparatus Including Torque Adjustable Driving Assistance Unit |
| US9205009B2 (en) | 2012-12-17 | 2015-12-08 | Hill-Rom Services, Inc. | Patient support apparatus having movable handles |
| CN117184009A (en) * | 2023-09-21 | 2023-12-08 | 宁波赛福汽车制动有限公司 | Hand feeling simulator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069465A (en) * | 1990-01-26 | 1991-12-03 | Stryker Corporation | Dual position push handles for hospital stretcher |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60164152A (en) * | 1984-02-06 | 1985-08-27 | Mitsubishi Electric Corp | Heat pump type hot water supplier |
| JPS60164152U (en) * | 1984-04-10 | 1985-10-31 | 株式会社 富士鉄工所 | Anti-vibration structure for vehicle transmission shift mechanism |
| JPS6165526A (en) * | 1984-09-06 | 1986-04-04 | Omron Tateisi Electronics Co | Fuzzy acuity product circuit |
| JPS6165526U (en) * | 1984-09-29 | 1986-05-06 | ||
| JPH01142019A (en) * | 1987-11-27 | 1989-06-02 | Kubota Ltd | Manufacture of two-phase stainless steel having high yield strength and high corrosion resistance |
| JPH01142019U (en) * | 1988-03-24 | 1989-09-28 | ||
| JPH08317953A (en) * | 1995-05-26 | 1996-12-03 | Tokico Ltd | Device for transporting bed |
| JP3903530B2 (en) * | 1997-06-09 | 2007-04-11 | 神鋼電機株式会社 | Operation part of small vehicle with driving assistance |
| JP2005289081A (en) * | 2004-03-31 | 2005-10-20 | Mitsuba Corp | Operation force detecting device for carrying device with power assist, and carrying device with power assist |
-
2005
- 2005-08-25 WO PCT/JP2005/015396 patent/WO2006025245A1/en active Application Filing
- 2005-08-25 JP JP2006531965A patent/JP4860473B2/en not_active Expired - Fee Related
- 2005-08-25 CN CNB2005800295810A patent/CN100549901C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5069465A (en) * | 1990-01-26 | 1991-12-03 | Stryker Corporation | Dual position push handles for hospital stretcher |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2006025245A1 (en) | 2006-03-09 |
| CN101010651A (en) | 2007-08-01 |
| JPWO2006025245A1 (en) | 2008-05-08 |
| JP4860473B2 (en) | 2012-01-25 |
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Granted publication date: 20091014 Termination date: 20180825 |