CN108135364A - Bed apparatus - Google Patents

Abstract

The bed apparatus of the present invention has：Bed；And bearing pallet, the bearing pallet support the bed and with movable agencies.The movable agency has：Carrier；Slide mass, the slide mass are embedded in the carrier；And guiding parts, the guiding parts have the limiting unit to come off of the guide part contacted with the peripheral surface of the slide mass and the limitation slide mass from the carrier.

Description

Bed apparatus

Technical field

The present invention relates to bed apparatus.

The application based on Japanese Patent Application 2015-206433 of on the October 20th, 2015 in Japanese publication to advocate Priority quotes the content herein.

Background technology

As the bed apparatus with previous elevating mechanism, the structure shown in for example following patent documents 1 can be enumerated. There is the bed apparatus elevating mechanism by X link-types crane to be supported to the construction for that can lift.Also, by that will set Roller rolling in elevating mechanism side is inserted in freely in the guide member for being arranged on crane side, and being allowed in makes crane liter The movement of the coupling position between crane and elevating mechanism during drop, and maintain connecting state between the two.

It, being capable of the construction of application examples as shown in Figure 14 and Figure 15 as the construction of the roller.That is, the roller 1 shown in the figure has Have：Nut 3, the nut 3 are fixed on the end of the connection barred body 2 of the elevating mechanism；Bolt 4, the bolt 4 is by screw with being somebody's turn to do Nut 3 is fixed；And roller main body 5, the roller main body 5 rotate freely ground axle suspension by the bolt 4.Nut 3 is to be coaxially inserted into Fixation is soldered as the state in the end of the connection barred body 2 of pipeline.Also, roller main body 5 is the resin for having cylindrical shape Molded product rolls ground axle suspension roller main body 5 freely by the roller bearing surface 4a being formed on the circumferential surface of bolt 4, in addition leads to It crosses the head 4b of bolt 4 and prevents the roller main body 5 coming off in the axial direction.

By with above-mentioned construction, roller 1 is installed into be rolled freely and central axis around the central axis CL of connection barred body 2 The fixed state in position on CL directions.Also, by the way that the roller 1 is made to be byed to draw while being rolled along the guide member It leads, and connection barred body 2 is enable to be relatively moved with the guide member and is linked freely.

Existing technical literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2009-207642 bulletins

The subject that the invention solves

However, the roller 1 of the bed apparatus needs 2 fixing component (nuts 3 to be pivotally supported to 1 roller main body 5 With bolt 4), therefore component number of packages is more, and the application site of the roller 1 also have it is multiple, therefore as needing more structures The construction of part number of packages, it is not easy to reduce cost and weight.

Also, need weld job when nut 3 is in the fixation on linking barred body 2, it is therefore desirable to which connection barred body 2 is carried out Multiple trepanning processing (with reference to the symbol 2a of Figure 14).That is, in the installation of roller 1, (1) first the end of connection barred body 2 into The trepanning processing of row multiple welding operation, (2) are then welded after nut 3 is coaxially inserted in the end It is fixed.Also, (3) make bolt 4 solid by screw and nut 3 after bolt 4 is extended coaxially through is inserted in roller main body 5 It is fixed.In this way, the assembling of roller 1 at least needs 3 processes, also, since the application site of roller 1 is also with multiple, it is therefore desirable to big The workload and cost of amount.Also, in order to more easily control carry out the carrying of bed apparatus when and when it is expected lightweight, it is main to use The situation of multiple screw bolt and nut being made of iron becomes obstruction.

Invention content

The present invention has been made in view of the above-described circumstances, it is intended that providing following bed apparatus：It can inhibit structure Component number of packages and installation work-hour number both sides and realize cost effective and lightweight.

Means for solving the problems

The present invention realizes relevant purpose in order to solve the above problems, employs following structure.

(1) bed apparatus of one embodiment of the present invention has：Bed；And bearing pallet, the bearing pallet support the bed And with movable agency.The movable agency has：Carrier；Slide mass, the slide mass are embedded in the carrier；And it leads To component, which has the guide part that contact with the peripheral surface of the slide mass and limits the slide mass from described The limiting unit to come off of carrier.

According to the bed apparatus of aforesaid way, only can just be pacified by the way that slide mass is embedded in carrier this process Pretend industry.Further, it is possible to cancel the bolt needed in previous construction or nut and the slide masses such as mounted roller, and pass through limiting unit Coming off for slide mass is prevented, therefore can be ensured that the function as slide mass and substantially inhibit component number of packages, realizes light weight Change.Furthermore, it is not necessary that in nut needed for previous construction, therefore also without the weld job for the installation, be processed into This can also be greatly decreased.

(2) in the bed apparatus described in above-mentioned (1), following structure can also be used：The slide mass is described in cladding Carrier covers and with the opening that will be connected between the inner space of the slide mass and outer gas.

In this case, installation of the slide mass on carrier is being embedded in slide mass in a manner of it will cover covering Carrier and carry out.At this point, due to being provided with opening in lid, even if the air in lid is compressed, air also can Across opening, pneumatic transmission goes out outward.It therefore, will not be by reaction force caused by the compression of air when lid is installed, therefore It can be easily installed operation.

Also, for example, in the case where carrier is the both ends of a hollow tube, when the one end in the hollow tube is fitted into After lid when another side is also fitted into lid, first the lid of the chimeric one end will not be compressed due to the air in hollow tube And it is pushed out to come off.Therefore, it is possible to reliably install a pair of of lid (slide mass) using 2 processes.

(3) in the bed apparatus described in above-mentioned (2), following structure can also be used：The slide mass be around with it is described The long side direction of carrier be in the roller of coaxial center axis thereof freely, it is described be open be arranged on the slide mass it is described in Around mandrel line.

In this case, compared with it will be open and be only arranged at the situation of central axis, even if water when cleaning bed It enters in lid, is also easily discharged to outside, therefore contribute to the high efficiency of cleaning or drying operation.

(4) in the bed apparatus described in any one in above-mentioned (1)~(3), following structure can also be used：It is described Slide mass has the end wall opposite with the limiting unit, and the periphery of the end wall is provided with chamfering.

In this case, can by chamfering come prevent slide mass and be formed in guiding parts guide part and limiting unit it Between corner interference.That is, in the case where being manufactured for example, by the bending machining to a plank to guiding parts, sometimes Being formed in the corner as bending part between guide part and limiting unit has fraction of curved surface, easily with the end wall of slide mass The periphery interference in portion.In contrast, it by implementing chamfering to end wall, is reliably prevented between slide mass and guiding parts Contact, it is ensured that the smoothly slip of slide mass.

(5) in the bed apparatus described in any one in above-mentioned (1)~(4) or, the slide mass it is chimeric In the end of the ora terminalis of the side of the carrier and the ora terminalis of the guide part on one face or relative to the guide part Edge stretches out outward.

In this case, even if generating opposite inclination for example between carrier and guiding parts, guide part it is described Ora terminalis will be contacted towards the circumferential surface of the carrier, also can be reliably prevented this by being clipped in the slide mass between the two Direct contact between the two.As a result, the damage of guide part and carrier both sides can be prevented.

(6) in the bed apparatus described in any one in above-mentioned (1)~(5) or, make the hard of the slide mass Degree is all lower than the either side in the hardness of the carrier and the hardness of the guiding parts.

In this case, if such as carrier or guiding parts are made of metal, the energy compared with the slide mass of resin It is enough to reduce loss.Thereby, it is possible to replace to replace very difficult carrier or guiding parts, and will dismantle or install it is easy and honest and clean The slide mass of valency is handled as consumables.

Invention effect

The bed apparatus of aforesaid way according to the present invention, structural elements number of packages and installation work-hour number both sides can be inhibited and reality It is existing cost effective.Further, since reducing structural elements number of packages compared with previous construction, therefore it also is able to realize lightweight.

Description of the drawings

Fig. 1 is the vertical view of the bed apparatus of an embodiment of the invention.

Fig. 2 is the side view of the bed apparatus.

Fig. 3 is the exploded perspective view for the bearing pallet for forming the bed apparatus.

Fig. 4 is the vertical view of the bearing pallet.

Fig. 5 is the side view of the bearing pallet.

Fig. 6 is the side view of the bearing pallet, is the figure of state for showing body frame to be made to increase by elevating mechanism.

Fig. 7 is the side view diagrammatically illustrated to the X connecting rod constructions of the bearing pallet.

Fig. 8 is the approximate three-dimensional map for being illustrated to movable agency possessed by the bearing pallet.

Fig. 9 is the figure for the major part for showing the movable agency, is the comparable amplification stereogram in A portions with Fig. 8.

Figure 10 is the side view that a part for the major part of the movable agency is observed with section.

Figure 11 is the side view of the variation for the major part for showing the movable agency.

Figure 12 is the side view of another variation for the major part for showing the movable agency.

Figure 13 is the figure for the another variation of the major part for showing the movable agency, is and the line B-B observation along Fig. 8 The comparable figure of view arrived.

Figure 14 is the exploded perspective view for showing the construction of roller possessed by previous bed apparatus.

Figure 15 is the longitudinal section view of the construction of the roller.

Specific embodiment

Hereinafter, the embodiment that the bed apparatus of the present invention is directed at while with reference to attached drawing illustrates.

The bed apparatus 10 of present embodiment can use under such as medical environment (comprising under care environments).In Fig. 1 extremely In Fig. 7, arrow H represents people (user) during sleep as the direction of rostral, also, arrow F represents that people is used as foot side during sleep Direction.In the following description, the horizontal direction vertical with the front-rear direction in the direction as arrow H, F is known as a left side sometimes Right direction.

As shown in Figures 1 to 6, bed apparatus 10 has：Bed 11, bearing pallet 12, driving mechanism 13, plate 14 and control unit 15.Bed apparatus 10 is the so-called beddo using electric power as power source.

Bed 11 is longer in the longitudinal direction compared with left and right directions in the case of overlook observation.Bed 11 has back bottom plate 16th, waist bottom plate 17 and leg bottom plate 18, the back bottom plate 16, waist bottom plate 17 and leg bottom plate 18 are from rostral H towards foot side F It is arranged in order.Leg bottom plate 18 has knee bottom plate 19 and a foot's bottom plate 20, and the knee bottom plate 19 and foot's bottom plate 20 are from rostral H It is arranged in order towards foot side F.

The upper surface of back bottom plate 16, the upper surface of waist bottom plate 17 and leg bottom plate 18 (knee bottom plate 19 and foot bottom Plate 20) upper surface be respectively formed the part of bed surface 21.The portion of back bottom plate 16 and the back of the body of the support user on bed surface 21 Divide and correspond to, waist bottom plate 17 is corresponding with the part of the waist of the support user on bed surface 21, on leg bottom plate 18 and bed surface 21 The part of the leg of user is supported to correspond to.Knee bottom plate 19 is right slave the part of knee to waist with the support user's on bed surface 21 Should, foot's bottom plate 20 is corresponding slave the part of knee to tiptoe with the support user's on bed surface 21.Waist bottom plate 17 is configured to It is capable of expansion and contraction on front-rear direction.Knee bottom plate 19 rotatably connects with flexion axis 22 of the foot bottom plate 20 around left and right directions extension Knot.

Bed 11 is made to carry out deformation that back rising or knee rise etc. (such as along with fluctuating by driving mechanism 13 Rotation) before standard state under, bed surface 21 be in horizontal plane.Bed surface 21 is formed as and left and right directions phase in the overlook observation It is longer more rectangular-shaped than in the longitudinal direction.The long side direction of bed surface 21 (bed 11) is set as front-rear direction, the short side of bed surface 21 Direction is left and right directions.Mattress (not shown) is configured on bed surface 21.

12 support bed 11 of pallet is supported, bears the load of bed 11 and the load of the user on bed 11.In present embodiment In, bearing pallet 12 rotatably supports back bottom plate 16 and leg bottom around the rotation axis 23,24 extended in the lateral direction Plate 18 (movable floor), bed apparatus 10 are so-called Gatch bed.Supporting pallet 12 has pedestal frame 25, body frame 26 and rises Descending mechanism 27.

Pedestal frame 25 is arranged on setting face S, in plan view rectangular shape.As shown in figure 3, pedestal frame 25 has： The the first vertical component 28 extended in the longitudinal direction；And the first cross member 29 extended in the lateral direction.

It is provided with a pair of first vertical component 28 at spaced intervals in the lateral direction.

First cross member 29 is erected between pair of right and left first indulges component 28, by the two first vertical components 28 in left and right Link on direction.It is provided with a pair of first cross member 29 at spaced intervals in the longitudinal direction.First cross member 29 is fixed to It is immovable relative to the first vertical component 28.

The end in the front-back direction of first vertical component 28 than the first cross member 29 further along rear direction outside protrude, The pin components 30 of setting are equipped in each end.In addition, it in the present embodiment, is employed as pin components 30 for example poly- It is covered made of propylene, but the cover can also be replaced and use Caster.

26 direct support bed 11 of body frame.Body frame 26 has：The frame section 31 of support bed 11 from below；And configuration is in bed 11 Lower section choose to install portion 32, this chooses to install portion 32 and is protruded in the lateral direction from frame section 31.

The rectangular shape in overlook observation of frame section 31.Frame section 31 has：The the second vertical portion extended in the longitudinal direction Part 33 (vertical component)；And the second cross member 34 (undertake part) extended in the lateral direction.

It is provided with a pair of second vertical component 33 at spaced intervals in the lateral direction.

Second cross member 34 is erected between pair of right and left second indulges component 33, in the lateral direction by the second vertical component Link between 33.It is provided with more (being 5 in the example of diagram) second cross members 34 at spaced intervals in the longitudinal direction.The Two cross members 34 are fixed to immovable relative to the second vertical component 33.The end in the front-back direction of second vertical component 33 is than more Being located at along front-rear direction near the rear direction further along of the second cross member of the position in outside 34 in the second cross member of root 34 It is prominent.

It chooses to install portion 32 frame section 31 is clipped in the middle and is provided with pair of right and left, in addition, pair of right and left chooses to install portion 32 preceding A pair is provided in rear direction at spaced intervals.Respectively choosing to install portion 32 has：Front and rear a pair of projecting part 35, this is front and rear a pair of prominent Component 35 extends in left-right direction from the second vertical component 33；And fitting 36 is selected, this selects fitting 36 to slide in left-right direction certainly Mode such as is assemblied on the two projecting parts 35.Fitting 36 is selected to be protruded in the lateral direction from bed 11.Anti-rolling (not shown) Fence body is loaded and unloaded relative to selecting fitting 36.

The body frame 26 is divided into rostral frame 37 and foot body side frame 38 along front-rear direction by two.In present embodiment In, a pair of second vertical component 33 is divided into rostral component 33a and foot sidepiece part 33b respectively along front-rear direction by two.It is also, logical Cross by 2 second cross members 34 positioned at rostral H in more second cross members 34 by pair of right and left rostral component 33a connection and Form rostral frame 37.Also, by will be left by 3 second cross members 34 positioned at foot side F in more second cross members 34 Right a pair of foot sidepiece part 33b links and forms foot body side frame 38.It chooses to install portion 32 or so and is arranged respectively at rostral frame 37 in couples With foot body side frame 38.

It is provided in rostral frame 37：Back bottom plate 16 is fixed in retraction frame 39, the retraction frame 39；And First rotatable parts 43, first rotatable parts 43 make retraction frame 39 (back bottom plate 16) be rotated around the first rotation axis 23.Contracting It returns 39 and first rotatable parts 43 of frame and is all formed as the handstand U-shaped being open in plan view towards rostral H.

Retraction frame 39 has：Be provided with a pair of bearing plate portion 40, the bearing plate portion 40 in the lateral direction every The standard width of a room in an old-style house every；And connection shaft 41, the connection shaft 41 will connect between the end of the foot side F in the front-back direction in bearing plate portion 40 Knot.The end of the left and right directions of connection shaft 41 protrudes in the lateral direction from bearing plate portion 40.

As shown in Figure 3 and Figure 4, retraction frame 39 links via retraction connecting rod 42 with body frame 26.In the lateral direction It clips retraction frame 39 and is provided with a pair of of retraction connecting rod 42.The end of the left and right directions of connection shaft 41 rotatably links In the end of the foot side F of each retraction connecting rod 42.Each retraction with the end of the rostral H in connecting rod 42 via the first rotation axis 23 and Rotatably link with body frame 26.First rotation axis 23 makes retraction connecting rod 42 rotatably link with body frame 26.

As shown in Figures 2 to 4, the first rotatable parts 43 have：Along back bottom plate 16 lower surface in the longitudinal direction Push arm portion 43a in the pair of right and left first of extension；And in the lateral direction link push arm portion 43a in pair of right and left first First linking part 43b (undertake part).First linking part 43b between the end of the foot side F of push arm portion 43a to connecting on first Knot.The end of the left and right directions of first linking part 43b push arm portion 43a from first is protruded in the lateral direction, with the second vertical component 33 rotatably link.The end of the rostral H of the push arm portion 43a sliding freely lower surface with bearing plate portion 40 on first It abuts.

In the rostral frame 37, by the way that the first rotatable parts 43 is made to be rotated towards upside, and make push arm portion on first The end of the rostral H of 43a is slided relative to the lower surface in bearing plate portion 40, and the first rotatable parts 43 above push away retraction frame 39. Then, retraction connecting rod 42 is rotated around the first rotation axis 23, and frame 39 of retracting is rotated around connection shaft 41.As a result, such as Fig. 2 institutes Show, the whole cephalad H movements of back bottom plate 16, and back bottom plate 16 rises and falls around the first rotation axis 23 and rotates, and becomes back bottom The so-called back propradation that plate 16 is inclined relative to horizontal.

Retraction frame 39 in back propradation is supported by the retraction stay 44 extended in the longitudinal direction.It retracts With stay 44 be arranged on retraction frame 39 in more second cross members 34 be located near rostral H the second cross member 34 it Between.The end of the foot side F of retraction stay 44 rotatably links with retraction frame 39, the rostral H's of retraction stay 44 End rotatably links with the second cross member 34.Retraction rises shape from the bearing of rostral H obliquely downward with stay 44 in back The retraction frame 39 of state.

As shown in Figure 3 and Figure 4, it is provided in foot body side frame 38：Leg bottom plate 18 is carried out via the second rotation axis 24 Fixed fixed component 45；And the second rotatable parts 46 that leg bottom plate 18 is made to be rotated around the second rotation axis 24.

Fixed component 45, which is arranged in more second cross members 34 for forming foot body side frame 38, is located at the near rostral H Two cross members 34.Fixed component 45 is protruded from the second cross member 34 towards foot side F.The end warp of rostral H in leg bottom plate 18 Fixed component 45 is rotatably fixed on by the second rotation axis 24.

Second rotatable parts 46 rotatably link around upper push shaft 47 with the second vertical component 33.It clips in the lateral direction Second rotatable parts 46 and be provided with push shaft 47 in a pair.Push shaft 47 is configured coaxially to each other on the two.

Second rotatable parts 46 are formed as the handstand U-shaped being open to foot side F in plan view.Second rotatable parts 46 Have：Push arm portion 48 in the pair of right and left second extended in the longitudinal direction along the lower surface of leg bottom plate 18；And on a left side The second linking part 49 (undertake part) for linking push arm portion 48 in pair of right and left second in right direction.Second linking part 49 will be left Link between the end of the rostral H in push arm portion 48 on right a pair of second.The end of the rostral H in push arm portion 48 is via above pushing away on second Axis 47 and link with the second vertical component 33.On second the end of the foot side F in push arm portion 48 sliding freely with knee bottom plate 19 Lower surface abuts.

In the foot body side frame 38, by the way that the second rotatable parts 46 is made to be rotated towards upside, and make push arm portion on second The end of 48 foot side F is slided on the lower surface of knee bottom plate 19, and the second rotatable parts 46 above push away knee bottom plate 19.In It is that, as shown in Fig. 2, knee bottom plate 19 is rotated around the first rotation axis 23, the end of the foot side F of knee bottom plate 19 rises, the opposing party Face, foot's bottom plate 20 are relatively rotated around flexion axis 22, become in bed surface 21 part corresponding with knee to protrude upward Mode buckling so-called leg propradation.

In addition, tiptoe rising stay 50 is provided in foot's bottom plate 20.Tiptoe rising is risen with stay 50 in tiptoe Leg bottom plate 18 is kept under state.After leg bottom plate 18 is made to be in leg propradation, the leg bottom of tiptoe propradation Plate 18 makes foot's bottom plate 20 be rotated around flexion axis 22 towards upside.Tiptoe rising is with stay 50 along the lower surface of foot's bottom plate 20 Extend in the longitudinal direction.The end of foot side F in tiptoe rising stay 50 rotatably links with foot bottom plate 20.Foot Sharp rising is free end with the end of the rostral H in stay 50.

In the tiptoe rising in stay 50, when in leg, bottom plate 18 is in tiptoe propradation, tiptoe rising is supportted 50 entirety of item is rotated downward and is extended from foot's bottom plate 20 towards rostral H obliquely downward, and tiptoe rises with the head in stay 50 The end of side H is engaged with the second vertical component 33.

Here, retraction frame 39 is fixed in the end of the rostral H in waist bottom plate 17, the foot side F's in waist bottom plate 17 Fixed component 45 is fixed in end.When at back, bottom plate 16 carries out fluctuating rotation, the end of the rostral H in waist bottom plate 17 and the back of the body Portion's bottom plate 16 rises and falls together, and waist bottom plate 17 is bent in a manner of extending and protruding downward in the longitudinal direction on the whole.

In the bearing pallet 12, by making 16 He of back bottom plate by the first rotatable parts 43 and the second rotatable parts 46 Leg bottom plate 18 is rotated since above-mentioned standard state, and the back for making bed 11 and becoming in Fig. 2 shown in double dot dash line rises and Leg rises the use state of (knee rising).When bed 11 is made to be in use state from standard state, by rising at back First implement leg rising before, the body that can be effectively prevented user is deviated relative to bed apparatus 10.

As shown in Figure 3, Figure 5 and Figure 6, elevating mechanism 27 makes body frame 26 be lifted relative to pedestal frame 25.Elevating mechanism 27 is adopted With so-called X connecting rod constructions.Elevating mechanism 27 has first connecting rod 51, second connecting rod 52 and connecting rod 53 (undertake part).

It is provided with a pair of of first connecting rod 51 and second connecting rod 52 at spaced intervals in the lateral direction respectively.First connecting rod 51 All extend in the longitudinal direction with second connecting rod 52, first connecting rod 51 and the respective central portion in the front-back direction of second connecting rod 52 it Between rotatably link via connecting pin 54.

Connecting rod 53 is provided with 4.Each connecting rod 53 is by the respective both ends in the front-back direction of pair of right and left first connecting rod 51 Link between portion, and will link between the respective both ends in the front-back direction of pair of right and left second connecting rod 52.

The 53 and first vertical component 28 of connecting rod of the end connection of the rostral H with first connecting rod 51 in 4 connecting rods 53 Rotatably link, the connecting rod 53 linked with the end of the rostral H of second connecting rod 52 is rotated freely with the second vertical component 33 Ground links.

Also, as shown in Figure 3 and Figure 7, the company of the end connection of the foot side F with first connecting rod 51 in 4 connecting rods 53 Knot stick 53 (hereinafter also referred to as connecting rod 100) is movably installed on along its extending direction is set to the second vertical component 33 Upper guide portion 55 (hereinafter also referred to as upper guides 150).In addition, the company with the end connection of the foot side F of second connecting rod 52 Knot stick 53 (hereinafter also referred to as connecting rod 200) is movably installed on along its extending direction is set to the first vertical component 28 Lower guide portion 56 (hereinafter also referred to as lower guide 250).Upper guide portion 55 and lower guide portion 56 are respectively along front-rear direction Sliding freely support connecting rod 53.

In the elevating mechanism 27, when first connecting rod 51 is rotated towards upside, the also linkedly direction of second connecting rod 52 Upside rotates.At this point, the end (connecting rod 100) of the foot side F in first connecting rod 51 is on one side by upper guide portion 55 (upper guide portion 150) cephalad H guiding is moved on one side, also, the end (connecting rod 200) of the foot side F in second connecting rod 52 is on one side by under (lower guide 250) cephalad of guide portion 56 H guiding is moved on one side.As a result, first connecting rod 51 and second connecting rod 52 rotate and rise, therefore body frame 26 rises relative to pedestal frame 25.

In addition, in the present embodiment, there is above-mentioned connecting rod 100, upper guides 150, connecting rod 200, lower part The construction of the elevating mechanism 27 (movable agency) of guiding piece 250 is especially characteristic, about their the aftermentioned theory of details It is bright.

As shown in Figure 3 and Figure 4, driving mechanism 13 is installed in bearing pallet 12, makes as in bed 11 and bearing pallet 12 At least part of movable part 57 it is movable.Driving mechanism 13 is linear actuator flexible in the longitudinal direction, by preceding It stretches in rear direction and makes movable part 57 movable.Driving mechanism 13 has：Make the back bottom plate 16 or leg as movable part 57 The backplane drive mechanism 58 of portion's bottom plate 18 (movable floor) rotation；And make first connecting rod 51 or second as movable part 57 The bar-link drive 59 of connecting rod 52 (connecting rod) rotation.

Backplane drive mechanism 58 has：The the first driving mechanism 58a for rotating back bottom plate 16；And make leg bottom plate 18 Second driving mechanism 58b of rotation.

First driving mechanism 58a configurations are located at the part along rostral H in the front-back direction in pallet 12 is supported.First drives Motivation structure 58a makes the first rotatable parts 43 be rotated towards upside by extending in the longitudinal direction.First driving mechanism 58a It is arranged on being located between the second cross member 34 of rostral H and the first linking part 43b in multiple second cross members 34.First Driving mechanism 58a via the installing component 60 protruded respectively from the second cross member 34 and the first linking part 43b and with the second transverse part 34 and first linking part 43b of part links.First driving mechanism 58a rotatably links with installing component 60.

The central portion in the front-back direction in pallet 12 is supported is configured in second driving mechanism 58b.Second driving mechanism 58b leads to It crosses and extends in the longitudinal direction, and the second rotatable parts 46 is made to be rotated towards upside.Second driving mechanism 58b is being set to foot side In multiple second cross members 34 of frame 38 be located near rostral H the second cross member 34 and the second rotatable parts 46 second It is set between linking part 49.Second driving mechanism 58b is via the peace protruded respectively from the second cross member 34 and the second linking part 49 It fills component 60 and links with the second cross member 34 and the second linking part 49.Second driving mechanism 58b is rotated certainly with installing component 60 Such as link.

The part being located in pallet 12 is supported along foot side F in the front-back direction is configured in bar-link drive 59.Connecting rod drives Motivation structure 59 makes first connecting rod 51 be rotated towards upside by extending in the longitudinal direction.Bar-link drive 59 is arranged on 53 (the connecting rod of connecting rod of the end connection of the first connecting rod 51 and foot side F by first connecting rod 51 in multiple connecting rods 53 200) between.Bar-link drive 59 links via the installing component 60 protruded from connecting rod 53 with connecting rod 53.Connecting rod drives Motivation structure 59 links via switching mechanism 61 with first connecting rod 51.Switching mechanism 61 is by the stretching motion of bar-link drive 59 It is converted into the rotational motion of first connecting rod 51.Bar-link drive 59 rotatably connects with installing component 60 and switching mechanism 61 Knot.

As depicted in figs. 1 and 2, plate 14 is fixed on bearing pallet 12, and than bed surface 21, side rises further up.With front and rear A pair of of plate 14 rises from the end of the both sides in the front-back direction of the second vertical component 33.

Control unit 15 controls driving mechanism 13.Control unit 15 is electrically connected with driving mechanism 13.Power cord C and do not scheme The operation portion shown is electrically connected with control unit 15.It powers from the outside through by power cord C to control unit 15, and via the operation portion And it inputs from external instruction.Control unit 15 controls driving mechanism 13 according to from external instruction.

Then, the connecting rod 100 of the feature explained in detail below as above-mentioned present embodiment, upper guides 150th, connecting rod 200 and lower guide 250.In addition, it is formed using 1 connecting rod 100 and 2 upper guides 150 One group of guiding mechanism, and similarly, one group of guiding mechanism is formed using 1 connecting rod 200 and 2 lower guides 250. Also, this two groups of guiding mechanisms all have same structure, therefore according to a side among these by 1 connecting rod 100 and 2 The guiding mechanism that portion's guiding piece 150 is formed illustrates, and omits and drawn about the opposing party by 1 connecting rod 200 and 2 lower parts The guiding mechanism that guiding element 250 is formed is the explanation of same structure.

As shown in Fig. 8~Figure 10, connecting rod 100 has：Longer hollow pipe 111 in the lateral direction；And rolling The a pair of rolls (slide mass) 121 at the dynamic both ends for being installed on pipe 111 freely.

The inner space of pipe 111 is connected in the range of the one end to the other end.Also, pipe 111 is in the long side 4 position bucklings in direction, as a result, the center portion in the case of overlook observation than its two side portions further towards foot Side F is protruded.Also, the both ends of the pipe 111 are the roller carriers 112 being coaxially externally embedded to for roller 121.Roller carrier 112 has： Rounded peripheral surface 112a in the case of being observed in the section vertical with the central axis CL along left and right directions；Identical The section in observe in the case of rounded inner peripheral surface 112b；And cricoid end face 112c.Also, a pair of rolls is accepted Portion 112 has shared central axis CL.That is, a pair of rolls carrier 112 is formed as each other in a manner of Sharing Center axis CL Coaxially, as a result, each peripheral surface 112a is all formed as coaxially to each other.

As shown in Figure 9 and Figure 10, roller 121 has：With the central axis CL in coaxial cylindric peripheral wall portion 121a； And the end wall 121b by the closure of openings of a side of peripheral wall portion 121a.Roller 121 be synthetic resin, by peripheral wall portion 121a with End wall 121b is integrally formed.Also, the roller 121 is coaxially embedded in the roller carrier 112 of pipe 111, moreover, can be opposite It relatively slides, can be rotated around central axis CL in roller carrier 112.

Peripheral wall portion 121a has：Rounded periphery in the case of being observed in the section vertical with the central axis CL Face 121a1；And rounded inner peripheral surface 121a2 in the case of being observed in the identical section.Also, end wall 121b It is rounded plectane in the case of along the central axis CL in opposite directions observation, is in addition formed with chamfering in its periphery 121b1.In addition, it is formed in end wall 121b from its inner surface 121b2 towards connecting in the range of outer surface 121b3 4 through hole 121b4.Through hole 121b4 be separated from each other around central axis CL (rolling axis) it is equiangularly spaced ( In the example of present embodiment for 90 degree be spaced) formed.

Through hole 121b4 is functioned as exhaust part when by the both ends that pipe 111 is embedded in outside roller 121.It is right This is illustrated, and when a pair of rolls 121 is installed on pipe 111, first, the one end of pipe 111 will be embedded in outside a roller 121 Roller carrier 112.That is, it is carried out by the way that the roller carrier 112 of the one end is inserted in the inner space of roller 121 outer It is embedding.Then, similarly, the roller carrier 112 of the another side of pipe 111 will be embedded in outside another roller 121.At this point, pipe 111 The one end supplied roller 121 chimeric, if in the case where not forming through hole 121b4, by roller 121 by pipe 111 one end covers and becomes the state closed.In this case, when the another side of pipe 111 is externally embedded to roller 121, Air inside pipe 111 can be compressed, and the roller 121 being first packed with is possible to be pushed and come off by air.In contrast, in this reality It applies in mode, due to forming through hole 121b4 in roller 121, the air in pipe 111 can be made to pass through the through hole 121b4 and loss are to outer gas, as a result, coming off for above-mentioned such roller 121 can be prevented.

In addition, the quantity of through hole 121b4 is not limited to 4 or 1~3 or 5 or more.But run through Hole 121b4 is formed for the purpose of exhaust, preferably unnecessarily does not increase to form number.If that is, through hole 121b4 Formation number it is excessive, then the surface area of the outer surface 121b3 of end wall 121b becomes smaller, the intensity or cunning of end wall 121b itself Dynamic property is deteriorated.According to such viewpoint, the quantity of through hole 121b4 is preferably 1~4.

Material as roller 121 is most preferably resin system, but is not limited to resin system, can from metal pipe 111 Or metal upper guides 150 are compared and are suitably selected in the material that hardness is relatively low and friction coefficient is relatively low.It closes In hardness more specifically, in the selection of materials of roller 121, the hardness of roller 121 preferably from than roller carrier 112 hardness, on It is selected in all low material of either side in the hardness of the hardness of wall 151, the hardness of lower wall 152 and longitudinal wall 153.

By material as selection, the loss of the peripheral surface 112a of pipe 111 or upper guides 150 can be prevented The loss of inner surface.That is, when lifting bed 11, pipe 111 and the weight of 121 supporting bed 11 of roller and user etc., and roller 121 coaxially roll, therefore the inner peripheral surface 121a2 of roller 121 is relative to the peripheral surface 112a of roller carrier 112 relative to pipe 111 It sliding contact and rolls.At this point, if the hardness of roller 121 is higher than the hardness of roller carrier 112, in roller carrier 112 because of length The use of period and in the case of being lost, need replacing pipe 111, but actually such component replacement is not easy to.With this Relatively, by as present embodiment, making the hardness of roller 121 more relatively low than the hardness of roller carrier 112, roller can be replaced Carrier 112 and make 121 side of roller be lost.Roller 121 is synthetic resin, manufactures inexpensive, and easily replaced, therefore Realize the higher construction of maintainability.In addition, in the case where making roller 121 for synthetic resin, also have when can make rolling The advantages of noise is extremely small such and superior such in light-weighted viewpoint the advantages of.In addition, the hardness of roller 121 is made to compare top The reasons why hardness of guiding piece 150 is relatively low is also same as above.

As shown in figure 8, the upper guides 150 form one group by 2 and are in each other parallel, respectively along front and back To configuration.Also, the size of separation W of the horizontal direction of the upper guides 150 is fixed on certain size.

As shown in Figure 10, upper guides 150 have：A pair of of upper wall 151 parallel to each other and lower wall 152；It and should The longitudinal wall 153 linked between the lateral margin of upper wall 151 and the lateral margin of lower wall 152.Upper wall 151 is longer substantially in the longitudinal direction Rectangular wall portion, the roller 121 is rolled relative to lower surface 151a and sliding contact.Equally, lower wall 152 is front and rear Longer generally rectangular wall portion on direction, the roller 121 is rolled relative to upper surface 152a and sliding contact.Longitudinal wall 153 be generally rectangular wall portion longer in the longitudinal direction, the outer surface 121b3 and medial surface 153a of the roller 121 Relatively.Also, the space marked off by 3 faces of lower surface 151a, upper surface 152a, medial surface 153a becomes rolls for roller 121 Access when moving and moving.

The upper wall 151 and lower wall 152 and longitudinal wall 153 of composition upper guides 150 are by being carried out to a metallic plate Bending machining and formed.Therefore, as shown in Figure 10, the medial surface 153a of the lower surface 151a of upper wall 151 and longitudinal wall 153 it Between crooked position formed curved surface.Equally, it is curved between the upper surface 152a of lower wall 152 and the medial surface 153a of longitudinal wall 153 Pars convoluta position also forms curved surface.Due to relative to the curved surface, forming chamfering 121b1 in the roller 121, therefore roller can be avoided Interference during 121 rolling, as a result, roller 121 can be rolled successfully.

Also, as shown in Figure 10, the ora terminalis 121e for being embedded in 112 side of roller carrier of roller 121 relative to upper wall 151 end The ora terminalis 152e of edge 151e and lower wall 152 stretches out outward.That is, when the roller 121 being fitted in roller carrier 112 guides on top When rolling or slide in part 150, on any position of the long side direction of upper guides 150, the ora terminalis 121e of roller 121 is opposite Surplus size m is stretched out outward in the ora terminalis 151e of upper wall 151 and the ora terminalis 152e of lower wall 152.

According to the structure, even if generating opposite inclination between such as roller carrier 112 and upper wall 151 and lower wall 152, The peripheral surface 112a of the ora terminalis 151e of upper wall 151 or the ora terminalis 152e of lower wall 152 towards roller carrier 112 will be contacted, Since roller 121 stretches out surplus size m outward, the direct contact being reliably prevented between the two.As a result, It can prevent the damage of roller carrier 112, upper wall 151 and lower wall 152.

Alternatively, it is also possible to make the surplus size m for 0 (zero) mm, and make the ora terminalis 121e of roller 121 and the end of upper wall 151 The ora terminalis 152e of edge 151e and lower wall 152 is on one face.In this case, identical effect can be also realized.

Also, as noted previously, as the size of separation W of the horizontal direction between two upper guides 150 is fixed on one It is sized, therefore can prevent roller 121 from coming off from the both ends of pipe 111.That is, roller 121 is along the de- of the direction of central axis CL It falls by the medial surface 153a preventions of longitudinal wall 153, therefore will not fall off roller 121.

In the present embodiment, the roller carrier 112 of pipe 111 realizes the effect of the rotary shaft of roller 121, also, longitudinal wall 153 medial surface 153a serves as the anti-falling piece (the previous construction using screw bolt and nut) of roller 121.In addition, utilize made of metal Roller carrier 112 bear the load that roller 121 is subject to, even therefore synthetic resin also have and do not allow to be also easy to produce roller 121 Deformation as effect.Therefore, it is possible to by the roller 121 of the construction of few component number of packages and as in the past suitable The rolling of profit.

In addition, connection construction between connecting rod 200 and lower guide 250 also with the connecting rod of above description 100 and upper Connection construction between portion's guiding piece 150 is identical, therefore omits its repeated explanation here.

The main points of the bed apparatus of the present embodiment with result described above are summarized below.

That is,

(1) bed apparatus 10 of present embodiment has：Bed 11；Support pallet 12,12 support bed 11 of bearing pallet and tool There is the elevating mechanism 27 as movable agency.Also, elevating mechanism 2 has：Roller carrier 112；Roller 121, the roller 121 are embedded in Roller carrier 112；And upper wall 151, lower wall 152 and longitudinal wall 153 as guiding parts, the upper wall 151, lower wall 152 and vertical Wall 153 has the lower surface 151a as guide part (or guide surface) contacted with the peripheral surface 121a1 of roller 121 and upper surface The medial surface 153a as limiting unit to come off of 152a and limitation roller 121 from roller carrier 112.

It, only just can be by the way that roller 121 is embedded in roller carrier 112 this process also, according to the bed apparatus 10 Row installation exercise.Further, it is possible to cancel the bolt needed in previous construction or nut and mounted roller 121, and pass through medial surface 153a prevents coming off for roller 121, therefore can be ensured that the function as roller 121 and substantially inhibit component number of packages, realizes light Quantization.Furthermore, it is not necessary that in nut needed for previous construction, therefore also without the weld job for the installation, processing Cost can also be greatly decreased.

Therefore, bed apparatus 10 according to the present embodiment, structural elements number of packages and installation work-hour number both sides can be inhibited and It realizes cost effective.Further, since structural elements number of packages is reduced, therefore can also realize lightweight compared with previous construction.

(2) in the bed apparatus 10 described in above-mentioned (1), roller 121 is the lid of coated roller carrier 112 and has roller 121 Inner space and outer gas between the opening (through hole 121b4) that connects.In addition, through hole 121b4 also has pipe 111 The effect connected between the inner and outer gas in openend.

According to the structure, installation of the roller 121 on roller carrier 112 is in a manner of covering and be capped that roller 121 is embedding It is carried out together in roller carrier 112, due to being provided through hole 121b4 in roller 121, even if roller 121 when mounted Interior air is compressed, and air can also pass through opening and pneumatic transmission goes out outward.It therefore, will not be by the installation space-time in roller 121 Reaction force caused by the compression of gas, therefore can be easily installed operation.

(3) in the bed apparatus 10 described in above-mentioned (2), multiple (4 are provided with around the central axis CL of roller 121 Position) it is described opening (through hole 121b4).

According to the structure, compared with the situation for the position for being only arranged at central axis CL with will pass through hole 121b4, even if water etc. It into roller 121, is also easily discharged to outside, therefore contributes to the high efficiency of cleaning or drying operation.In addition, form number 4 positions are not limited to, such as 1 position can also be only formed around central axis CL.

(4) in the bed apparatus 10 described in any one in above-mentioned (1)~(3), roller 121 has opposite with the limiting unit End wall 121b, the periphery of end wall 121b is provided with chamfering 121b1.

According to the structure, roller 121 is reliably prevented from relative to each between longitudinal wall 153 and upper wall 151 and lower wall 152 The contact in corner, it is ensured that roller 121 is successfully rolled or slided.

(5) in the bed apparatus 10 described in any one in above-mentioned (1)~(4), roller 121 is embedded in roller carrier The ora terminalis 121e of 112 side and each ora terminalis 151e, 152e of upper wall 151 and lower wall 152 is on one face or relative to upper Each ora terminalis 151e, 152e of wall 151 and lower wall 152 stretch out outward.

According to the structure, even if for example generating opposite inclination between roller carrier 112 and upper wall 151 and lower wall 152, Also can the direct contact between the two be reliably prevented by the peripheral wall portion 121a for the roller 121 being clipped between the two.Its As a result it is that can prevent the damage of roller carrier 112, upper wall 151 and lower wall 152.

(6) in the bed apparatus described in any one in above-mentioned (1)~(5), make the hardness of roller 121 than roller carrier Either side in 112 hardness and the hardness of upper guides 150 is all low.

According to the structure, it can replace and replace very difficult metal roller carrier 112 or upper guides 150, and It is handled dismantling or installing easy and cheap roller 121 as consumables.

An embodiment of the invention is illustrated above, but the present invention is not limited in above structure certainly.

For example, employing a pair of of upper wall 151 and lower wall 152 in the present embodiment, but according to the present invention can also answer With position as omitting lower wall 152 as shown in Figure 11, only with upper wall 151 and longitudinal wall 153.

Also, it employs in the present embodiment and roller 121 is set to pipe 111 and upper guides 150 are set In the structure of foot sidepiece part 33b, but can also application according to the present invention position and as roller 121 is set to as shown in Figure 12 Foot sidepiece part 33b and upper guides 150 are set to pipe 111.In this case, it needs to be used in and roller 121 is set It is welded and fixed in the new pipe 111A of foot sidepiece part 33b relative to foot sidepiece part 33b.

Also, the structure that roller 121 rolls in upper guides 150 is employed in the present embodiment, but can also be adopted The structure not rolled in upper guides 150 with roller 121.For example, it as shown in figure 13, can also use along central axis CL is in generally square roller 121A in the case of observing.In this case, roller 121A do not rolled in upper guides 150 and (slide) only is slided, but is relatively rolled relative to pipe 111.

Also, the example embedded in roller carrier 112 outside roller 121 is illustrated, but not only in the present embodiment It is limited to the structure, roller 121 can also be embedded in roller carrier 112 or not only will be again interior embedded in roller carrier 112 outside roller 121 Embedded in roller carrier 112.

Also, it in the present embodiment, is carried out in case of the carrier of roller 121 to be set as to the both ends of pipe 111 Explanation, but can also replace pipe 111, and using the both ends of solid bar as carrier difference mounted roller 121.

In addition, in the present embodiment, as long as the lower surface 151a of the upper wall 151 as guiding parts and roller 121 is outer At least part contact of the width direction of circumferential surface 121a1, it will be able to which rolling or glide direction as two pairs of rollers 121 are drawn The guide part led and function.Therefore, even if as example as shown in Figure 10, lower surface 151a is using the periphery with roller 121 The width direction (along the direction of central axis CL) of face 121a1 major part contact, but with other portions of peripheral surface 121a1 Divide discontiguous structure, lower surface 151a can be used as guide part and reliably function.Conversely, lower surface 151a is certain Also by the way of being contacted in the entire scope in the width direction of the peripheral surface 121a1 of roller 121.

The upper surface 152a of lower wall 152 as guiding parts is also identical with above-mentioned lower surface 151a.That is, upper surface 152a As long as contacted at least part of the width direction of the peripheral surface 121a1 of roller 121, it will be able to as two pairs of rollers 121 rolling or Guide part that person's glide direction guides and function.Also, in longitudinal section shown in Fig. 10, about along central shaft The width dimensions or peripheral surface 121a1 in the direction of line CL are longer than lower surface 151a or equal, even lower surface 151a is longer than peripheral surface 121a1.

Also, in the present embodiment, as shown in Figure 10, as the medial surface 153a and roller of the longitudinal wall of guiding parts 153 The entire surface sliding contact of 121 outer surface 121b3, but it is not limited only to the structure.As long as that is, medial surface 153a and roller 121 At least part contact of outer surface 121b3, it will be able to be functioned as the limiting unit to come off of limitation roller 121.In example In variation as shown in figure 11, the width dimensions of the paper upper and lower directions of longitudinal wall 153 can also be shortened, and only with roller 121 A part (top) sliding contact of outer surface 121b3.

In addition, in the present embodiment, between the peripheral surface 121a1 of roller 121 and lower surface 151a and upper surface 152a It is provided with the clearance (gap) for being smoothed out the rolling of roller 121 (or slip).Therefore, also sometimes due to roller 121 Roll the state of (or slide) and make the peripheral surface 121a1 of roller 121 relative to lower surface 151a and upper surface 152a provisionally It separates, but as long as being the knot that the peripheral surface 121a1 and lower surface 151a of roller 121 or upper surface 152a are contacted and be oriented to Structure is in the scope of the present invention.

Equally, it is also equipped with making roller 121 between the outer surface 121b3 of roller 121 and the medial surface 153a of longitudinal wall 153 The clearance (gap) that successfully carries out of rolling (or slide).Therefore, also sometimes due to the rolling (or slide) of roller 121 State and the outer surface 121b3 of roller 121 is made provisionally to be separated relative to medial surface 153a, but as long as being by making medial surface 153a It is opposed with the medial surface 153a of roller 121 and prevent the structure to come off of roller 121, it is in the scope of the present invention.

It in addition to this, without departing from the spirit and scope of the invention, can be suitably into the knot for being about to the embodiment Structure element is substituted for well known structural element, and can also the appropriately combined variation.

Industrial availability

The bed apparatus of the above embodiment according to the present invention can inhibit pair of structural elements number of packages and installation work-hour number Just realize cost effective.Further, since structural elements number of packages is reduced, therefore can also realize light weight compared with previous construction Change.

Symbol description

10 bed apparatus

11

12 bearing pallets

27 elevating mechanisms (movable agency)

111 pipes (hollow tube)

112 roller carriers (carrier)

121 rollers (slide mass)

121a peripheral wall portions

The peripheral surface of 121a1 rollers

121b1 chamferings

121b4 through holes (opening)

151st, 152,153 upper wall, lower wall, longitudinal wall (guiding parts)

151a, 152a lower surface, upper surface (guide part)

153a medial surfaces (limiting unit)

CL central axis

Claims (6)

1. a kind of bed apparatus, which is characterized in that the bed apparatus has：

Bed；And

Pallet is supported, which supports the bed and has movable agency,

The movable agency has：

Carrier；

Slide mass, the slide mass are embedded in the carrier；And

Guiding parts, the guiding parts have the guide part contacted with the peripheral surface of the slide mass and the limitation slide mass From the limiting unit to come off of the carrier.

2. bed apparatus according to claim 1, which is characterized in that

The slide mass is the lid for coating the carrier,

The slide mass has the opening that will be connected between the inner space of the slide mass and outer gas.

3. bed apparatus according to claim 2, which is characterized in that

The slide mass be around with the long side direction of the carrier in the roller of coaxial center axis thereof freely,

The opening is arranged on around the central axis of the slide mass.

4. the bed apparatus described in any one in claims 1 to 3, which is characterized in that

The slide mass has the end wall opposite with the limiting unit,

The periphery of the end wall is provided with chamfering.

5. the bed apparatus described in any one in Claims 1-4, which is characterized in that

The ora terminalis of the side for being embedded in the carrier of the slide mass and the ora terminalis of the guide part on one face or It is stretched out outward relative to the ora terminalis of the guide part.

6. the bed apparatus described in any one in claim 1 to 5, which is characterized in that

The hardness of the slide mass is all lower than the either side in the hardness of the carrier and the hardness of the guiding parts.