CN101548050A - Door panel - Google Patents

Abstract

A door panel having a double structure with an outer plate and an inner plate. The door panel has increased opening area efficiency and reduced turbulence of air flow in air flow holes. Flow hole assemblies (26) each having hexagonal air flow holes (25) are formed in the outer plate (21). The air flow holes (25) are assembled together in a honeycomb pattern with connection sections (25a) of the sides of the air flow holes (25) present between the air flow holes (25). The inner plate (23) has air flow openings (30) each formed slightly greater than a flow hole assembly (26) in the outer plate (21).

Description

Door-plate

Technical field

The present invention relates to have the door-plate of outer panel and interior plate.

Background technology

Figure 15 represents the hydraulic crawler excavator 10 as Work machine, is provided with upper rotating body 12 in the mode that can rotate on lower running body 11, and drivers' cab 13, apparatus for work 14, motor equal power device 15 are installed on this upper rotating body 12.Power set 15 are by coverings such as top cover body 16 and side doors 17,18. Side door 17,18 is mounted to by the aftermentioned hinge can freely openable, and keeps closed conditions by locking devicen 19.

Owing to the engine room of such Work machine, cooling unit (cooling package) etc. are keeped in repair on the side door that opens and closes, be provided with the air inlet (for example, with reference to patent documentation 1) of a plurality of elongated slotted eye shapes.In addition, the side door that has is provided with a plurality of vent windows (louver) (for example, with reference to patent documentation 2).

On the other hand, in this side door, have that one is fixed with the double-deck cover body that interior plate forms under the state in gap leaving with respect to outer panel.Interior plate has a plurality of recesses, the recess of this interior plate is bonded on the outer panel, and the circumference of outer panel is carried out crimping processing, and (for example, with reference to patent documentation 3) thus is fixed together outer panel and interior plate.

Patent documentation 1: 2006-No. 170108 communiques of TOHKEMY (the 7th page, Fig. 2)

Patent documentation 2: 10-No. 213344 communiques of Japanese kokai publication hei (the 2nd page, Fig. 9)

Patent documentation 3: 9-No. 228412 communiques of Japanese kokai publication hei (the 2nd page, Fig. 8)

Be provided with when the side door of Work machine under the situation of air inlet of a plurality of elongated slotted eye shapes, separating part need be set respectively between each air inlet, these separating parts are being guaranteed this size that will be necessary on the one hand of an intensity, therefore, with respect to from the air inlet of an end open area up to the air inlet of the other end, the shared efficiency of aperture area is low, and separating part becomes the baffle that air flows, and has the problem that produces turbulent flow easily at separating part.

For louver(-vre), too because intensity aspect former thereby need have predetermined louver(-vre) thickness, thereby efficiency is low, and louver(-vre) becomes the baffle that air flows, and has the problem that is easy to generate turbulent flow.

In addition, when offering air inlet or the ventilation used of reply heat on the double-deck cover body with under the situation of peristome, the ventilation that is opened in outer panel and interior plate is aimed at the correct position ground of peristome, in this case, be not easy to process and assemble.

Summary of the invention

The present invention finishes in view of such problem, the generation of the turbulent flow during the air that its purpose is in the double-deck door-plate of outer panel and interior plate, improve efficiency and reduce air vent flows.And its purpose is to provide a kind of door-plate that can easily carry out the position alignment of outer panel and interior plate.

The described invention of claim 1 is a kind of door-plate, and above-mentioned door-plate comprises: outer panel; And interior plate, it is configured as concavo-convex with respect to outer panel, and the recess of this interior plate is fixed on the medial surface of outer panel, outer panel has cellular air vent set portion, this cellular air vent set portion is to gather cellularly and constitutes forming the joint portion of hexagonal a plurality of air vent through each limit of air vents, and interior plate has the ventilation peristome that the cellular air vent set portion with outer panel forms in the recess upper shed accordingly.

In the described invention of claim 2, the ventilation of the interior plate in the described door-plate of claim 1 forms greatlyyer than the cellular air vent set portion of outer panel with peristome.

Invention according to claim 1, in the double-deck door-plate of outer panel and interior plate, limited ventilation peristome with respect to interior plate, by on outer panel, being the air vent of cellular ground opening formation to high-density, can form the high cellular air vent set portion of efficiency, and, owing to this cellular air vent set portion will form hexagonal a plurality of air vent to be to gather through the joint portion on each limit of air vents and to constitute cellularly, so can be in the joint portion intensity of guaranteeing between each air vent, thereby make this joint portion form to such an extent that carefully reduce fluid resistance, thereby can reduce the generation that hinders the mobile turbulent flow that causes of air because of the joint portion between the air vent.

Invention according to claim 2, the ventilation of interior plate forms greatlyyer than the cellular air vent set portion of outer panel with peristome, therefore, even because the size of the form tolerance of drawing product and the position alignment of outer panel and interior plate of correctly not carrying out, also leave and to prevent that interior plate from blocking the leeway of the cellular air vent set portion of outer panel, therefore can easily carry out the position alignment of outer panel and interior plate.

Description of drawings

Fig. 1 is the amplification stereogram of first embodiment of expression door-plate of the present invention.

Fig. 2 is the figure of the external surface of the same door-plate.

Fig. 3 is the sectional view along the III among Fig. 2-III line.

Fig. 4 is the stereogram of the external surface side of the same door-plate.

Fig. 5 is the stereogram of the inner surface side of the same door-plate.

Fig. 6 is the amplification view of the same door-plate.

Fig. 7 is the sectional view that the crimping of the same door-plate adds the Ministry of worker.

Fig. 8 is the figure that the crimping of the same door-plate adds the inner surface of the Ministry of worker.

Fig. 9 is the exploded perspective view of the same door-plate.

Figure 10 is the sectional view of installation procedure of the inside stiffener of the same door-plate of expression, (a) be the sectional view of in interior plate, locating and being bonded with inner stiffener, (b) being the sectional view that is positioned with interior plate and inner stiffener in the crimping processing circumference midway of outer panel, is that outer panel is carried out crimping processing and engages the sectional view that is fixed with interior plate and inner stiffener (c).

Figure 11 is that expression is formed on the stereogram that bonding agent on the interior plate of the same door-plate accumulates portion.

Figure 12 is the vertical view with Work machine of the same door-plate.

Figure 13 is the figure of inner surface of second embodiment of expression door-plate of the present invention.

Figure 14 is the sectional view along the XIV among Figure 13-XIV line.

Figure 15 is the stereogram of the summary of expression Work machine.

Label declaration

21: outer panel; 23: interior plate; 25: air vent; 26: cellular air vent set portion; 27: as the junction surface of recess; 30: the ventilation peristome.

The specific embodiment

Below, referring to figs. 1 through first embodiment shown in Figure 12 and Figure 13 and second embodiment shown in Figure 14, the present invention is described in detail.

Figure 12 represents the hydraulic crawler excavator 10 as Work machine, is provided with upper rotating body 12 in the mode that can rotate on lower running body 11, and drivers' cab 13, apparatus for work 14, motor equal power device 15 are installed on this upper rotating body 12.Power set 15 are by coverings such as top cover body 16 and side doors 17.Side door 17 is mounted to by the aftermentioned hinge can freely openable, and keeps closed condition by the aftermentioned locking devicen.

Fig. 1 to Fig. 6 represents the door-plate 20 of side door 17, and as Fig. 3 and shown in Figure 6, this door-plate 20 has: outer panel 21; Interior plate 23, it is concavo-convex with respect to these outer panel 21 drawings, the recess of this interior plate 23 is fixed in the medial surface of outer panel 21, and has formed space 22 between the protuberance of interior plate 23 and outer panel 21; And expanded material 24, it is filled in the space 22 between described outer panel 21 and the interior plate 23.

The thickness of slab of outer panel 21 forms 1.2～5.0 times of thickness of slab of interior plate 23.In other words, interior plate 23 uses the iron plate that thickness ratio outer panels 21 will approach.For example, be under the situation of the thick iron plate of 1.2mm at outer panel 21, in order to satisfy reciprocal intensity and processability, interior plate 23 preferred used thicknesses are the iron plate of 0.6mm, 0.8mm etc.

As shown in Figure 6, expanded material 24 is shaped being attached in the space 22 of foaming raw material 24a between outer panel 21 and interior plate 23 of sheet of not foamed state of inner surface of interior plate 23 heating and making it to foam.Foaming raw material 24a is preferably the rubber-like damping material of the high foaminess with the cubical expansivity about 20 times.The heating of foaming raw material 24a preferably uses baking vanish to carry out simultaneously with firing equipment and baking vanish.

As Fig. 2 and shown in Figure 4, be provided with the cellular air vent set portion 26 of many groups as air vent set portion by hole processing on outer panel 21, this cellular air vent set portion 26 assembles cellular and constitutes forming hexagonal a plurality of air vent 25 through the joint portion on each limit of air vent.

Each air vent 25 is preferably formed the regular hexagon that is that each edge lengths equates, but so long as up and down symmetry and symmetrical hexagon, be point-symmetric hexagon, also can be vertically long or laterally long hexagon.

As Fig. 1 and shown in Figure 5, interior plate 23 has: the junction surface 27,28 as recess that is configured as concavity and engages with outer panel 21; With the protuberance 29 that bloats shaping with respect to these junction surfaces 27,28.

As shown in Figure 5, three row that the cellular air vent set portion 26 of the junction surface 27 of interior plate 23 and outer panel 21 forms transversely accordingly, on these junction surfaces 27, as shown in Figure 1, be provided with than the big ventilation of the cellular air vent set portion 26 of outer panel 21 with peristome 30 by hole processing respectively.

Promptly, the cellular air vent set portion 26 of outer panel 21, the ventilation that forms with junction surface 27 upper sheds as recess at interior plate 23 are provided with organize with peristome 30 correspondingly, but the ventilation of interior plate 23 forms greatlyyer slightly than the cellular air vent set portion 26 of outer panel 21 with peristome 30.

As shown in Figure 7 and Figure 8, the circumference 31 of outer panel 21 is carried out such crimping processing: the circumference 31 of outer panel 21 is turned back in the mode of the circumference 32 that encases interior plate 23 and flatten.That is, outer panel 21 has crimping and adds the Ministry of worker 33, and this crimping adds the Ministry of worker 33 by turning back in the mode of the circumference 32 that encases interior plate 23 and flattening the circumference 31 that forms and come the circumference 32 of interlock in conjunction with interior plate 23.

As shown in Figure 7, the circumference at least of interior plate 23 32 is bonding by bonding agent 34 and outer panel 21, adds the Ministry of worker 33 places by this bonding agent 34 at crimping and outer panel 21 and interior plate 23 are bonded together and seal.Bonding agent 34 is preferably has viscosity and thermosetting paste-type structure bonding agent.

As Fig. 1 and shown in Figure 8, at circumference 31 places of outer panel 21, the return portion branch with the turn back part and the middle kink in the bight of outer panel 21 cuts out otch respectively, thereby is formed with bight grooving 35 and middle kink grooving 36.Bight grooving interior plate 23 and outer panel 21 35 corresponding bights are configured as circular-arc.

Fig. 9 represents the exploded perspective view of side door 17, to be clipped in outer panel 21 and with respect to this outer panel 21 location and be fixed on mode between the interior plate 23 of medial surface of outer panel 21, to be fixed with the inside stiffener 41 that hinge is installed usefulness.

About this inside stiffener 41, be provided with the concavo-convex junction surface 42 that has repeatedly formed jog at central portion, distolateral and another distolateral hinge face portion 43,44 that is formed with continuously respectively at this concavo-convex junction surface 42 is adjacent to be groove shape ground with these hinge face portions 43,44 and is formed with the usefulness auxiliary section 45, location of a side and the usefulness auxiliary section 46, location of opposite side.

With respect to this inside stiffener 41, on the protuberance 29 of the hinge installation side of interior plate 23, be provided with the concavo-convex junction surface 47 that has repeatedly formed jog at central portion, distolateral and another distolateral opening respectively at this concavo-convex junction surface 47 is formed with hinge window 48,49 is installed, with these hinges install windows 48,49 be adjacent to be location that the convex ground that protrudes downwards is formed with a side with the location of auxiliary section 51 and opposite side with auxiliary section 52.

The location of one side of inner stiffener 41 is with location the varying in size with auxiliary section 46 of auxiliary section 45 and opposite side.Equally, the location of a side of interior plate 23 is with location the varying in size with auxiliary section 52 of auxiliary section 51 and opposite side.Be separately positioned on location correspondence position, a side the auxiliary section 45 and the location concavo-convex each other cooperation in auxiliary section 51 of a side of inner stiffener 41 and interior plate 23, be separately positioned on location correspondence position, opposite side the auxiliary section 46 and the location concavo-convex each other cooperation in auxiliary section 52 of the opposite side of inner stiffener 41 and interior plate 23.

When the location of this inside stiffener 41 cooperates, the concavo-convex junction surface 42 of inner stiffener 41 is close to the back side at the concavo-convex junction surface 47 that is coated with bonding agent of interior plate 23, and the hinge face portion 43,44 of inner stiffener 41 and the hinge of interior plate 23 are installed window 48,49 aligned in position, therefore can pass these hinges installation windows 48,49 hinge 53,54 is distinguished welded and installed in the hinge face portion 43,44 of inner stiffener 41.

As shown in Figure 9, outer panel 21 and interior plate 23 are provided with installing hole 55a, the 55b that is used to install locking devicen.

Figure 10 represents to be assembled with the manufacture method of the door-plate 20 of inner stiffener 41, (a) expression is positioned at bloating in the protuberance 29 that is configured as convex with respect to outer panel 21 of interior plate 23 with inner stiffener 41, and utilizes the bonding agent that is coated between the concavo- convex junction surface 42,47 to carry out bonding.On interior plate 23 and inner stiffener 41 and junction surface face that outer panel 21 engages, also be coated with thermosetting bonding agent 34.(b) circumference 31 that is illustrated in outer panel 21 carries out under the crimping processing bending and opened state midway, to be coated with interior plate 23 under the state of bonding agent in inner stiffener 41 is embedded into the circumference 31 of this outer panel 21, and position with respect to 21 pairs of interior plates 23 of outer panel and inner stiffener 41.(c) expression is turned back by crimping processing the circumference 31 of outer panel 21 in the mode of the circumference 32 of clamping interior plate 23, thereby engages interior plate 23 and inner stiffener 41 on the medial surface that is fixed on outer panel 21 and seal.

As shown in Figure 6, about interior plate 23, with respect to form concavity and with the junction surface 27 that outer panel 21 is close to, bloat and be formed with protuberance 29, be formed with stair-stepping reinforcement variant part 56 at the pars intermedia of this protuberance 29.The junction surface 27 of interior plate 23 is bonded on the outer panel 21 by bonding agent 34, and the part 57 that erects with respect to junction surface 27 of protuberance 29 forms circular-arc continuously.

Shown in Fig. 1 and Fig. 5 etc., protuberance 29 and reinforcement variant part 56 form ring-type along the junction surface 27 of concavity.

As shown in figure 11, interior plate 23 has bonding agent and accumulates portion 68 in the junction surface 27 that is adhered to outer panel 21 by bonding agent 34, and this bonding agent accumulates portion 68 to have the bonding agent that accumulates bonding agent 34 and accumulate space 67.The bonding agent of this interior plate 23 accumulates portion 68 and is arranged on longitudinally in the junction surface 27 with peristome 30 along ventilation with being continuous convex, and described ventilation is arranged at the place consistent with the air vent 25 of outer panel 21 with peristome 30.

As shown in Figure 11, use the edge of opening of peristome 30 in the ventilation of the junction surface of interior plate 23 27 openings formation, in the mode that does not overlap, form to such an extent that to gather the zone that forms (be cellular air vent set portion 26) than each air vent 25 big slightly across the 30a of portion more than needed with each air vent 25 that forms in outer panel 21 upper sheds.In addition, the joint portion 25a between each air vent 25 forms carefully as far as possible in the limit of the intensity of guaranteeing outer panel 21, so that do not hinder the air stream by air vent 25.

As shown in Figure 5, interior plate 23 has the protuberance 29 that bloats shaping with respect to junction surface 27,28, and in this protuberance 29, in the upper and lower of ventilation with peristome 30, also be provided with along being bonded in horizontal junction surface 27 on the outer panel 21 continuously and bloat the reinforcement protuberance 29a of the convex of shaping continuously, and, be concavity ground on the direction of this reinforcement with protuberance 29a and be formed with and strengthen crossing with recess 70.

Next, the manufacturing process of this door-plate 20 is described.

As shown in Figure 6, in the protuberance 29 of interior plate 23, paste foaming raw material 24a, shown in Figure 10 (a), the inside stiffener 41 that hinge is installed usefulness is bonded in the protuberance 29 of a side of interior plate 23, and, interior plate 23 as the junction surface 27 of recess and inner stiffener 41 on coating carry out bonding required thermosetting bonding agent 34 with outer panel 21, shown in Figure 10 (b), outer panel 21 and interior plate 23 positioned their are overlapped, shown in Figure 10 (c), the circumference 31 of outer panel 21 is turned back in the mode of the circumference 32 of clamping interior plate 23 by crimping processing and flatten, thereby interior plate 23 and inner stiffener 41 are engaged in the medial surface of outer panel 21.

Then, make bonding agent 34 sclerosis by baking vanish with the heating of firing equipment, thereby interior plate 23 and inner stiffener 41 are bonded together with outer panel 21, and, make foaming raw material 24a foaming by baking vanish with the heating of firing equipment as shown in Figure 6, expanded material 24 is filled in the space 22, then, with the heating of firing equipment the coating on the external surface that is sprayed on outer panel 21 and interior plate 23 is in advance carried out sintering by baking vanish.

For example, about the thermmohardening of bonding agent 34, under 150 ℃, carry out 5 minutes heating; About the foaming of expanded material 24, under 150 ℃, carry out 20 minutes heating; About baking vanish, under 180 ℃～200 ℃, carry out 20 minutes heating.These heating can use existing baking vanish to carry out with firing equipment.

At last, as shown in Figure 5, pass the hinge of interior plate 23 window 48,49 is installed, hinge 53,54 is utilized welded and installed such as fillet welding respectively on the hinge face 43,44 of inner stiffener 41, and locking devicen 19 is installed among installing hole 55a, the 55b of outer panel 21 and interior plate 23.

Next, the effect to Fig. 1 first embodiment extremely shown in Figure 12 describes.

As shown in Figure 6, firm door-plate can be provided with cheap price, this door-plate is by the closed cross sectional structure of the hollow that forms by outer panel 21 with than these outer panel 21 thin interior plates 23, can realize lightweight, and by by interior plate 23 and 21 that form than the outer panel of this interior plate 23 thick (1.2～5.0 times thicknesss of slab), as to have the hollow of enough height closed cross sectional structure with interior plate 23, can be to guaranteeing enough intensity from the impact in the outside.

And, can absorb vibration by the expanded material 24 that is filled between outer panel 21 and the interior plate 23, thus the sound that door-plate self is produced decay effectively, promptly, the attenuating of sound improves, and can realize low noiseization.

As Fig. 1 and shown in Figure 5, make protuberance 29 bloat shaping by the junction surface that is configured as concavity 27 with respect to interior plate 23, even the thickness ratio outer panel of interior plate 23 21 is thin, also can be shaped in the mode that increases rigidity by concaveconvex structure, can improve intensity.

As shown in Figure 7 and Figure 8, by being turned back and flatten the crimping that forms in the mode of the circumference 32 that encases interior plate 23, the circumference 31 of outer panel 21 adds the Ministry of worker, even the outer panel 21 that thickness ratio interior plate 23 is thick, the crimping that also can obtain solid shape adds the Ministry of worker 33, can obtain the joint portion of turning back of stay in grade.

Promptly, add the Ministry of worker 33 about the circumference interlock that utilizes outer panel 21 in conjunction with the crimping of the circumference of interior plate 23, constitute by turning back and flatten into flat condition in the mode of the circumference that encases interior plate 23, therefore compare with the existing crimping fine finishining that the bending process portion that makes outer panel 21 bloats circular cross section, can make the crimping of outer panel 21 add the dimensionally stable of the Ministry of worker 33, guarantee the quality of homogeneous.

At this moment, though the processing that the circumference of outer panel 21 is turned back at the bight and the middle kink place of outer panel 21 also is not easy to carry out, but as Fig. 1 and shown in Figure 8, make the return portion in the bight of outer panel 21 be arranged with otch by bight grooving 35, and make the return portion of the middle kink of outer panel 21 be arranged with otch by middle kink grooving 36, therefore, even at the bight and the middle kink of outer panel 21, also can be easily and correctly carry out the processing of the circumference 31 of outer panel 21 being turned back and flatly flattening.

As shown in Figure 7, the crimping of the bonding and outer panel 21 by utilizing bonding agent 34 adds the Ministry of worker 33, and outer panel 21 and interior plate 23 are become one reliably, and can obtain the sealing effectiveness that produced by bonding agent 34.

As shown in Figure 8, circular-arc owing to bight grooving interior plate 23 and outer panel 21 35 corresponding bights are configured as, therefore can prevent bight grooving 35 protrusions of the bight of interior plate 23 from outer panel 21.

As Fig. 1 and shown in Figure 11, the ventilation of interior plate 23 is provided with greatlyyer than the cellular air vent set portion 26 of outer panel 21 with peristome 30, therefore, even when the medial surface with interior plate 23 and outer panel 21 forms as one, produced the tolerance of making, promptly, even because the size of the form tolerance of drawing product and the position alignment of outer panel 21 and interior plate 23 of correctly not carrying out, the cellular air vent set portion 26 of outer panel 21 also is at the scope bias internal of ventilation with the 30a of portion more than needed of peristome 30, therefore can prevent that interior plate 23 from blocking the cellular air vent set portion 26 of outer panel 21, can guarantee the aperture area be scheduled to, and can not damage the aperture area of the ventilation usefulness of outer panel 21 and interior plate 23, and can easily carry out the position alignment of outer panel 21 and interior plate 23, can also improve the manufacturability when making.

In addition, in the double-deck door-plate of outer panel 21 and interior plate 23, limited ventilation peristome 30 with respect to interior plate 23, by on outer panel 21, being the air vent 25 of cellular ground opening formation to high-density, can form the high cellular air vent set portion 26 of efficiency, and, because this cellular air vent set portion 26 is to gather through the joint portion on each limit of air vent 25a and forms forming hexagonal a plurality of air vent 25 cellularly, so can be in the intensity of guaranteeing the joint portion 25a between each air vent 25, make this joint portion 25a form carefully to reduce fluid resistance, compare with the air vent set portion that forms by circular hole or quadrilateral hole set, can reduce the generation that hinders the mobile turbulent flow that causes of air because of the joint portion 25a between the air vent 25.

As shown in Figure 5, by many groups of cellular air vent set portions 26 and ventilation peristome 30, can guarantee the aperture area of enough ventilation usefulness.

As shown in Figure 9, inner stiffener 41 is fixed between interior plate 23 and the outer panel 21 at protuberance 29 places that interior plate 23 is bloated with respect to outer panel 21 of door-plate 20, by this inside stiffener 41, can strengthen the intensity at protuberance 29 places, particularly position by concavo-convex cooperation with respect to interior plate 23 owing to this inside stiffener 41, therefore as long as carry out concavo-convex cooperation during fabrication, just can correctly control the position of inner stiffener 41, inner stiffener 41 correctly can be located and is fixed on the most effective position of reinforcement.

That is, the location of the inside stiffener 41 of strip with respect to interior plate 23 can easily and be carried out reliably with the concavo-convex cooperation with auxiliary section 46,52 of the location of the concavo-convex cooperation of auxiliary section 45,51 and opposite side in the location by a side.

Because the location of a side is with location the varying in size with auxiliary section 46,52 of auxiliary section 45,51 and opposite side, so when inner stiffener 41 towards not simultaneously, can not carry out the location position alignment of the location of auxiliary section 51,52 and inner stiffener 41 of interior plate 23, so the inside stiffener 41 with directionality correctly can be assembled in the interior plate 23 with auxiliary section 45,46.

Because being passed in the hinge installation window 48,49 of interior plate 23 upper sheds formation is welded on hinge 53,54 in the hinge face portion 43,44 of inner stiffener 41, therefore compare with the situation that hinge 53,54 is installed on the interior plate 23, can improve the installation strength of hinge 53,54.

As shown in figure 10, carry out at circumference 31 under midway the bending and opened state of crimping processing outer panel 21, the interior plate 23 that is coated with under the state of bonding agent is embedded and is positioned in the circumference 31 of outer panel 21 across inner stiffener 41, the circumference 31 of outer panel 21 is turned back in the mode of the circumference 32 of clamping interior plate 23 by crimping processing, thus, interior plate 23 and inner stiffener 41 are fixed on the medial surface of outer panel 21, therefore, can provide the manufacture method of such door-plate: the crimping processing circumference 31 midway of outer panel 21 effectively is applied to the location of interior plate 23, and can guarantees to be configured as the intensity at protuberance 29 places of concavo-convex interior plate 23 by inner stiffener 41 with respect to outer panel 21.

As shown in Figure 6, closed cross sectional structure by the hollow that forms by outer panel 21 and interior plate 23, can guarantee enough intensity, and, in the interior plate 23, at the pars intermedia that bloats the protuberance 29 of shaping with respect to the junction surface of being close to outer panel 21 27, be stepwise formed and strengthened variant part 56, therefore compare with the interior plate that does not form this reinforcement variant part 56, can realize the raising of intensity, thereby can improve the door-plate integral intensity.

As shown in Figure 5, junction surface 27, with the protuberance 29 that forms ring-type along this junction surface 27 and strengthen variant part 56 and strengthen mutually can be improved the intensity of interior plate 23 on the whole.

As shown in figure 11, utilizing bonding agent 34 to be bonded in the junction surface 27 of the interior plate 23 on the outer panel 21, be provided with bonding agent and accumulate portion 68, this bonding agent accumulates portion 68 to have the bonding agent that accumulates bonding agent 34 and accumulates space 67, therefore, when pushing and being close to interior plate 23 on the outer panel 21, the bonding agent of extruding between the junction surface 27 of outer panel 21 and interior plate 23 34 remains in the bonding agents that bonding agent accumulates in the portion 68 and accumulates the space 67, can keep the engaging force after these bonding agent 34 sclerosis.In addition, accumulate portion 68 about the bonding agent that is arranged on continuously in the junction surface 27 longitudinally, also the pillar as above-below direction plays a role as side door the time, thereby can improve the intensity to the load of above-below direction.

As shown in Figure 5, by along the junction surface 27 that is bonded in the interior plate 23 on the outer panel 21 continuously, bloat the reinforcement protuberance 29a of the convex of shaping continuously, can realize being bonded in the reinforcement of the intensity of the interior plate 23 on the outer panel 21, and, by crossing the reinforcement recess 70 that forms concavity on the direction of strengthening with protuberance 29a, can make by the reinforcement of strengthening with protuberance 29a realizes and become more firm, in a word, the reinforcement that has cross one another directionality by utilization adds complicated concaveconvex shapes with protuberance 29a and reinforcement with 70 pairs of interior plates of recess 23, can make the reinforcement of interior plate 23 become more firm.

Next, Figure 13 and Figure 14 represent second embodiment of the present invention, generally speaking, this embodiment does not have the stair-stepping reinforcement variant part 56 of Fig. 1 to the embodiment shown in Figure 12, yet the structure that the ventilation of interior plate 23 is provided with greatlyyer than the cellular air vent set portion 26 of outer panel 21 with opening 30 etc. are identical to embodiment shown in Figure 12 with Fig. 1, therefore are marked with same numeral and omit its explanation.

Utilizability on the industry

The present invention can be applied to the door of Figure 12 or operation machineries such as hydraulic crawler excavator shown in Figure 15 Plate.

Claims (2)

1. a door-plate is characterized in that,

Above-mentioned door-plate comprises:

Outer panel; With

Interior plate, it is configured as concavo-convex with respect to outer panel, and the recess of this interior plate is fixed on the medial surface of outer panel,

Outer panel has cellular air vent set portion, and this cellular air vent set portion is to gather cellularly and constitutes forming the joint portion of hexagonal a plurality of air vent through each limit of air vents,

Interior plate has the ventilation peristome that the cellular air vent set portion with outer panel forms in the recess upper shed accordingly.

2. door-plate as claimed in claim 1 is characterized in that,

The ventilation of interior plate forms greatlyyer than the cellular air vent set portion of outer panel with peristome.

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