JP2011136684A - Frame structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a frame structure which is less restricted in the installation place, structure and shape, allowing mounting of a battery or the like with less number of parts. <P>SOLUTION: This frame structure on which a member to be mounted 100 is mounted includes a vertical frame 1 in which the side walls 101 of the member to be mounted are provided along the inside and the side wall 102 of the member to be mounted is folded outward on the upper side and extends laterally along the upper end outer side; and a lateral flange part 10 in which a cover 120 which is arranged continuously with the outer surface of the vertical frame 1 on the lower side of the upper end and extends outward and which covers the side wall 103 of the member to be mounted, and the member to be mounted 100 from the upper side or the side wall 103 of the member to be mounted and the cover 120 are provided along the upper surface. The member to be mounted can be easily attached airtight without using a special bracket. Since the arrangement of the frame structure is not restricted, the frame structure can be attached and fixed to the proper position of the chassis frame or the like of a vehicle body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a frame structure to which a member to be attached such as a bucket is attached.

When a battery serving as a driving source for an electric vehicle, a fuel cell vehicle, a hybrid vehicle, etc. is mounted on the vehicle, it is necessary to mount more batteries than a general gasoline vehicle. Many methods have been adopted to accommodate the vehicle underneath the vehicle.
For example, an installation structure in which a battery housing space is secured with a hollow cross-section structure in a chassis frame of a vehicle body, and a tray on which a battery is mounted can be inserted and removed via a frictional resistance reducing member provided between the tray and the hollow portion. It has been proposed (see Patent Document 1).
In addition, there has been proposed a frame structure in which a chassis frame of an electric vehicle is divided into three parts, frames of each section are joined with connecting metal fittings, and a drive unit including a battery is placed on a rear section (see Patent Document 2).

Japanese Patent Laid-Open No. 10-287138 JP 2006-44400 A

However, in the installation structure shown in Patent Document 1, the installation location, structure, shape, and the like are restricted, and it is difficult to apply to various vehicles. Furthermore, it is necessary to attach the metal bracket by welding or mechanical joining, and there is a problem that the number of parts increases, mass, and cost increase. In addition, due to the structure, it is difficult to ensure airtightness, and there is a problem that the durability of the battery is easily affected. For this reason, there is a problem that application of a sealant or adhesive and use of a gasket are heavy, and it is troublesome to put in and out the battery during maintenance.
Moreover, the installation structure shown in Patent Document 2 is limited to a special chassis frame, and there is a problem that the installation location of the battery is similarly restricted.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a frame structure in which a battery or the like can be mounted with a small number of parts, with less restrictions on installation location, structure, and shape.

  That is, the frame structure of the present invention is a frame structure to which a member to be attached is attached, and the side wall of the member to be attached is attached to the inside, and the side wall of the member to be attached is folded outward on the upper side to be outside the upper end. A vertical frame extending in the width direction so as to be attached to the cover, and a cover extending from the upper side of the vertical frame to the outside below the upper end and covering the attached member from above, or a side wall of the attached member And the cover has a lateral flange portion attached to the upper surface side.

The attached member that is folded outward at the upper end of the vertical frame and attached to the outer side of the upper end of the vertical frame may be located with its end attached to the vertical frame. Further, it may be extended and attached to the lateral flange portion.
The attached member and the cover may be attached either in a state of being in close contact with the vertical frame or the lateral flange portion or in a state of being in close contact with the vertical frame or the horizontal flange portion. When attaching the member to be attached and the cover to the lateral flange portion, the cover may be attached to overlap the side wall of the member to be attached.
Usually, a part of the attachment portion is fixed to one or both of the vertical frame and the horizontal flange portion.

  The horizontal flange portion is provided with an engagement groove on the upper surface side along the longitudinal direction of the vertical frame, and a downward engagement protrusion provided with a shape on the attached member side wall or cover is fitted into the engagement groove. Can be configured. Accordingly, the mounted member and the cover can be easily positioned, and the mounted member and the cover can be fixed by the engagement. Further, if the engaging ridges and the engaging groove portions are formed along the longitudinal direction of the vertical frame, the engaging portion prevents rainwater from the outside from penetrating inside, The effect | action which improves the waterproofness with respect to a to-be-attached member is also acquired.

On the lateral flange portion, along the longitudinal direction of the vertical frame, between the attached member side wall and the cover, between the cover and the lateral flange portion, or between the attached member side wall and the lateral flange portion. Packing can be arranged. Thereby, it is possible to prevent rainwater and the like from penetrating into the inside from the attached portion. The packing can be disposed at one or a plurality of locations in the above combination, and may be fitted into a groove shape or the like formed in the lateral flange portion, or may be fitted into the engagement groove portion provided in the lateral flange portion. Good.
Alternatively, the engaging protrusions of the attached member may be fitted into the engaging groove of the lateral flange portion, and the packing may be fitted into the groove shape on the back side of the engaging protrusion of the attached member. Thereby, high waterproofness is ensured and packing can be positioned easily. By overlaying the cover on the packing, the waterproofness is significantly improved. Moreover, airtightness can also be ensured by sealing the contact surface between the attached member and the cover.

  For the packing, an O-ring or the like can be used. The fitting portion that fits into the groove shape, and the outside that protrudes outside the groove shape when the fitting portion is fitted into the groove shape. A shape having a portion and a peripheral edge extending to the outer peripheral side connected to the outer peripheral side of the outing portion can be used. According to this shape, the peripheral edge portion is reliably located on the outer peripheral side even in the corner portion and the like, and the sealing effect can be stably exhibited.

Moreover, a horizontal flange part protruding item | line can be formed in the horizontal flange part along the width direction of a vertical frame in the inner side of the said engagement groove part. Thereby, it becomes a labyrinth structure by the said engaging groove part and a horizontal flange part protruding item | line, and also can prevent penetration | invasion of rain water etc. to an inner side.
For the lateral flange ridges, the attached member side walls and the cover may be bent or bent so as to be along the outer surface of the lateral flange ridges.
Moreover, you may make it form the space | gap part mutually spaced apart between the said to-be-attached member side wall and the said cover which were partly or wholly overlapped on the horizontal flange part. Thereby, when rain water penetrates into a small gap where both overlap, the penetration force can be weakened in the gap. The gap is preferably provided on the inner side of the engagement groove provided in the lateral flange.

  Further, the vertical frame can be provided with a side hollow portion along the vertical frame width direction on the outer surface on the lower side of the horizontal flange portion. The side hollow portion increases the frame structure strength against an impact from the side. In addition, when a battery or the like that exhibits heat generation is mounted on the attached member, the heat dissipation can be improved by the side hollow portion. The cross-sectional shape of the side hollow portion is not particularly limited, and the hollow member may appropriately have a partition wall or the like, and may be configured in multiple stages. As a result, it is possible to eliminate or reduce the arrangement of foaming agents and steel materials for side collision countermeasures and the installation of an air cooling fan for cooling, which are conventionally required.

  Further, the vertical frame may be formed with a receiving piece that extends inward and receives the bottom of the attached member on the upper surface side at the inner lower end. Accordingly, the attached member can be held by a simple frame structure, and the weight of the frame structure can be easily reduced. Moreover, you may arrange | position the baseplate which covers a to-be-attached member bottom part on the lower surface side of a vertical frame. The bottom plate may cover the entire bottom portion of the attached member, or may cover a part of the bottom portion with the bottom plate. By arranging and fixing the bottom plate, it is possible to protect the mounted member, and further, it is possible to obtain an effect of increasing the rigidity of the entire frame structure. A material such as a synthetic resin or a metal plate can be appropriately used for the bottom plate, and the bottom plate can also have a hollow structure.

The vertical frame can be arranged in a frame shape. The frame shape may be integrally formed, but it is desirable to connect a plurality of vertical frames to form a frame shape. In that case, the vertical frames may be connected to each other at the corner portion, and a highly rigid joint may be arranged at the corner portion for connection. The joint should just be a thing with relatively high rigidity with respect to a vertical frame. By using the joint, the rigidity (torsional rigidity, etc.) of the entire frame structure can be increased. Further, by adjusting the length of the vertical frame by cutting or the like as appropriate, the size of the entire frame structure can be changed and adjusted arbitrarily and easily.
Further, by attaching the cover to the horizontal flange portion provided in the frame-like vertical frame over the entire circumference, the entire attached member can be covered, and the airtightness and waterproofness to the attached member can be covered. Etc. can be secured.

  In the above frame structure, the frame structure itself can be mounted and fixed without the need for special brackets, etc., by securing the mounting portion (mounting surface) for the frame mounting material at the end of the horizontal flange, etc. Can do. When mounting on a vehicle, the vehicle body chassis can be mounted as a frame mounting portion, and the fixing can be performed using appropriate fasteners such as rivets and bolts. Moreover, although use of a bracket etc. can be made unnecessary as this invention, use of auxiliary fixtures, such as a bracket, is not excluded.

  Further, the frame structure may be composed of only the above-described frame, but the inside of the vertical frame arranged in a frame shape is partitioned in the horizontal direction, and the attached member side wall is attached inside, and the attached member side wall May be provided with a partition vertical frame which is folded outward and attached to the upper end side thereof. Thus, it is possible to attach a plurality of attached members according to the partitioned area. It is possible to attach attached members of the same size by partitioning evenly, and it is possible to attach attached members of different sizes by changing the size of the partition area. The partitioning vertical frame may be constituted by a single frame, or may be constituted by a pair of vertical pieces that are spaced apart from each other and connected by connecting pieces. In these pairs of vertical pieces, adjacent members to be attached can be attached, and attachment work of a plurality of members to be attached can be easily performed. In the space between the pair of vertical frames, a wiring cable, a cooling device, and the like are accommodated and received by a connecting piece as desired, so that the wiring and the like can be handled well. This eliminates the need for a cooling device placement bracket and wiring housing member, which are conventionally required, and makes it possible to reduce the number of parts, cost, and mass.

  As the above-mentioned attached member, for example, a bucket can be exemplified, and examples of the bucket include a member that accommodates a battery serving as a driving source of an electric vehicle, a fuel cell vehicle, a hybrid vehicle, and the like. However, in the present invention, the use and structure of the attached member are not particularly limited, and the frame structure and the mounting structure of the present invention can be applied to various uses.

  As described above, according to the present invention, in the frame structure to which the attached member is attached, the attached member side wall is attached to the inside, and the attached member side wall is folded outward on the upper side. A vertical frame that extends in the width direction to be attached to the outside of the upper end, and a cover that extends outward from the upper side of the vertical frame below the upper end to cover the attached member from above. Since the attachment member side wall and the horizontal flange portion attached to the upper surface side of the cover are provided, the attachment member can be easily attached without a special bracket or the like. Further, since the arrangement of the frame structure is not particularly limited, it is possible to attach and fix the frame structure at an appropriate position such as a chassis frame of the vehicle body. As a result, application to various vehicles and the like becomes easy and excellent in versatility.

It is a top view which shows the frame structure of one Embodiment of this invention. Similarly, it is a partially expanded sectional view. Similarly, it is a perspective view of a corner joint. Similarly, it is a partially expanded sectional view which shows the attachment structure of a to-be-attached member. Similarly, it is a perspective view which shows the example of a change of a side hollow part. Similarly, it is an enlarged sectional view showing a modified example of the mounting structure of the mounted member. Similarly, it is an expanded sectional view showing an example of a change of the packing fitted in the groove shape of the mounted member. Similarly, it is an expanded sectional view which shows the other modification of the packing fitted to the groove shape of a to-be-attached member. It is an expansion schematic diagram which shows the fitting state of the packing which can be fitted to the groove shape of a to-be-attached member.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a plan view schematically showing an example of a frame structure of the present invention, and FIG. 2 is a partially enlarged front view.
The vertical frames are arranged in a rectangular frame shape by long vertical frames 1, 2 and short vertical frames 3, 4 extending in the width direction, and corner joints 5 ... 5 are arranged at the corners of each vertical frame. Has been fixed.
Each of the vertical frames 1 ... 4 is provided with a lateral flange portion 10, 20, 30, 40 that extends outward over the entire length of the upper end portion of the outer surface and slightly below the entire length. ... 40 is formed with engaging grooves 11, 21, 31, 41 along the longitudinal frame width direction on the side close to the longitudinal frames 1. The engaging grooves 11, 21, 31, 41 are formed by partially bending the lateral flange portions 10, 20, 30, 40. In this figure, the engaging grooves 11, 21, 31, 41 are formed as square grooves, but can also be formed into round grooves or the like, and the cross-sectional shape of the grooves is particularly limited as the present invention. Is not to be done.

Further, on the outer surface of the vertical frames 1... 4, a rectangular cross section that extends to the bottom of the vertical frame 1... 4 and extends in the vertical frame width direction at a position below the horizontal flange portions 10, 20, 30 and 40. Shaped side hollow portions 12, 22, 32, and 42 are formed. The side hollow portions 12, 22, 32, 42 are formed in a cylindrical shape formed in a part of the vertical frames 1 ... 4. In this embodiment, the lateral flange portion and the side hollow portion are spaced apart from each other, but the lateral flange portion can also be configured to serve as the wall portion of the side hollow portion.
Also, receiving pieces 13, 23, 33, 43 facing inward are provided on the inner surfaces of the lower ends of the vertical frames 1 ... 4, respectively, so that a frame structure is obtained. The frame structure can be constituted by an aluminum extruded material or the like.

Corner joints 5... 5 having the same shape are arranged at the ends of the vertical frames 1... 4, and the vertical frames 1. The corner joints 5 ... 5 can be formed by die casting or extrusion.
As shown in FIG. 3, the corner joint 5 has a substantially right-angled isosceles triangular prism shape having substantially the same height as the upper surface of the horizontal flange portions 10... 40 of the vertical frames 1. In addition, frame-shaped fitting portions 50 and 50 and flange portions 51 and 51 are formed on the lower side of each surface having an isosceles cross section. The fitting portions 50 and 50 are formed so as to be fitted into the cylindrical holes of the side hollow portions 12, 22, 32, or 42. Positioning the vertical frame is facilitated by fitting the fitting portions 50, 50 into the cylindrical holes of the side hollow portions 12, 22, 32, or 42. The flange parts 51 and 51 are arrange | positioned at the both sides | surfaces of the corner joint 5, and are formed so that the side surface hollow part outer surface of a vertical frame may be followed, when a vertical frame is connected. By welding the flange portions 51, 51 and the vertical frames 1... 4, the vertical frames 1. Further, on the upper surface of the corner joint 5, a groove portion 52 connected to the groove portion of the lateral flange portions 10... 40 is formed.
The long vertical frames 1 and 2 and the short vertical frames 3 and 4 are arbitrarily adjusted in length by cutting or the like, and the vertical frames 1 to 4 are connected by corner joints 5 to 5. The size of the entire frame structure is arbitrarily changed and adjusted. At this time, by joining the vertical frame and the corner joint with a fillet weld structure using the flange portions 51 and 51, even if the length of the vertical frame varies, the accuracy of the length of the vertical frame It is possible to weld regardless of whether or not. Moreover, it is possible to improve weldability and to reduce welding distortion by setting it as a lap fillet weld structure. Since the corner joint has a fitting portion and a flange portion, the fitting portion and the lap welding are performed, and the coupling rigidity can be improved as compared with simple butt welding.
Further, by connecting the vertical frames using a corner joint, it is possible to improve the torsional rigidity of the frame as compared with a case where the frame shape is formed integrally.
In the above embodiment, the corner joint 5 has been described as including both the fitting portions 50 and 50 and the flange portions 51 and 51. However, as a suitable example of the corner joint, in addition to the above-described ones, any one of the fitting parts 50 and 50 and the flange parts 51 and 51 may be provided. In addition, when it has only the fitting parts 50 and 50 in the corner joint 5, the corner joint 5 and a vertical frame can be connected by overlapping welding. Further, when the corner joint 5 has only the flange portions 51, 51, the flange portion 51 and the vertical frame can be connected by overlapping fillet welding.

In the vertical frames 1 to 4 assembled in a frame shape, partitioning vertical frames 6 and 7 that divide the frame into a plurality of regions are arranged in a T-shape. That is, the partition vertical frame 6 is disposed between the vertical frames 1 and 2 in the vicinity of the vertical frame 3 side, and the partition vertical frame 7 is positioned at the intermediate position between the vertical frames 1 and 2. It is disposed across the vertical frame 6 and the vertical frame 4.
The partitioning vertical frames 6 and 7 have the same height as the vertical frames 1 to 4 and the paired vertical pieces 60 and 60 and the vertical pieces 70 and 70 are opposed to each other with a gap therebetween. The pieces 60, 60 and the vertical pieces 70, 70 are connected by connecting pieces 61, 71 at the lower end position and the intermediate position of each vertical piece. Further, support pieces 70a and 70a which are bent inward and have a horizontal shape are provided on the upper ends of the vertical pieces 70 and 70, respectively. Furthermore, the vertical pieces 60 and 60 and the vertical pieces 70 and 70 are provided with receiving pieces 62 and 72 directed to the respective regions on the lower end side.

  The vertical frame 1... 4 and the partition vertical frames 6 and 7 constitute a frame structure of the present invention, and the partition vertical frames 6 and 7 partition the inside of the vertical frames 1. Yes. Buckets, which are attached members, can be attached and stored in the regions. In this embodiment, the area is divided into three regions by the partition vertical frame. However, the present invention is not particularly limited in the number of partitions and the size of the partition region, and a predetermined number of partitions as required. The vertical frame for use can be arranged at a predetermined position. In addition, as this invention, it can use as one storage area, without dividing the inside of a frame shape, and it is not essential to arrange | position a vertical frame in frame shape.

Next, a mounting structure for a member to be mounted using the frame structure will be described with reference to FIGS.
In the figure, only the mounting structure relating to the vertical frame 1 is shown, and the other vertical frames 2 ... 4 have the same mounting structure.
The bucket 100 is made of synthetic resin or metal, and has a deep dish shape that is large enough to fit in a storage area surrounded by the vertical frames 1 to 4 and the vertical frames 6 and 7 for partitioning. The material of the bucket is not limited as the present invention. The bucket side wall 101 of the four circumferences of the bucket 100 is attached to the vertical piece of each vertical frame or partition vertical frame, and the bucket folded side wall portion 102 folded back at the upper end thereof is a vertical frame or vertical partition frame vertical frame. It is attached to the outer upper side of the piece.

Further, the bucket side wall 101 attached to the vertical frames 1 ... 4 has the bucket folded side wall portion 102 folded back at the upper end portion of the vertical frames 1 ... 4 as described above, and further, the bucket side wall portion 102 extends laterally from the upper end portion. A flat side wall portion 103 that curves outward is provided so as to be attached to the upper surface of the flange portions 10, 20, 30, 40. Further, the flat side wall 103 is formed with downwardly protruding ridges 104 along the lateral direction, which are fitted into the engaging grooves 11, 21, 31, 41 formed in the lateral flange portions 10 ... 40. The upper surface side has a groove shape 105. The flat side wall portion 103 is formed with a width smaller than the entire width of the horizontal flange portion 10... 40, and is attached to the chassis frame of a vehicle body (not shown) at the end of the horizontal flange portion 10. Portions 14, 24, 34 and 44 are secured. The vehicle body chassis can be attached with bolts or rivets via the attachment portions 14... 44.
On the other hand, with respect to the partition vertical frames 6 and 7, the bucket side wall 101 is attached to the vertical pieces 60 and 70, and the horizontal portion of the bucket folded portion 101 a folded back at the upper end of the bucket side wall 101 is the vertical piece 60. , 70 on the support pieces 60a, 70a, the bucket 100 is supported.

  Further, the corners of the bottom portion 106 of the bucket 100 are supported by receiving pieces 13, 23, 33, 43 of the vertical frames 1 ... 4 and receiving pieces 62, 72 of the partitioning vertical frames 6, 7. It is also possible to perform a waterproofing process for applying a sealant between the receiving pieces 13... 43, 62, 72 and the bottom portion 106 of the bucket 100. Further, a bottom plate 8 that covers the entire bottom portion may be disposed on the lower surface side of the vertical frames 1... 4 to protect the bucket 100 and the battery 110 housed in the bucket. Moreover, the effect which increases the rigidity of the whole frame structure is also acquired by arrange | positioning and fixing the baseplate 8. FIG. The bottom plate 8 can be a metal plate or a hollow member.

  A battery 110 is stored in the bucket 100 attached to the frame structure. Further, in the space between the vertical pieces 60, 60 or between the vertical pieces 70, 70 of the partitioning vertical frames 6, 7, wirings and cooling devices can be arranged as desired. By arranging the cooling device, the cooling efficiency can be improved when the battery is rapidly charged.

  A cover 120 is disposed so as to cover the bucket 100 and the entire battery 110. The cover 120 can be made of resin or metal. The cover 120 has a cover side wall 121 along the outer surface of the upper end of the vertical frame 1... 4, and the cover side wall 121 is bent or curved outwardly on the flat side wall 103 of the bucket 10. It has a cover flat side wall portion 122 attached in a superimposed manner. At this time, the packing 130 is fitted into the groove shape 105 of the bucket 100, and the packing 130 is in close contact with the cover flat side wall portion 122 provided on the bucket flat side wall portion 103 to ensure waterproofness. The bucket flat side wall portion 103 and the cover flat side wall portion 122 can be mechanically fastened to the lateral flange portions 10... Moreover, airtightness can also be ensured by sealing the contact surface of the bucket 100 and the cover 120.

  According to the mounting structure of the above configuration, it is possible to configure the frame structure to be mounted at an appropriate location on the vehicle body, and the size and shape of the frame structure can be easily changed by the arrangement of the vertical frame of an arbitrary length. It is possible and excellent in versatility.

  Note that the side hollow portions 12, 22, 32, 42 provided in the vertical frames 1 ... 4 can improve the strength against the side impact and the heat dissipation as described above. The shape of the side hollow portion can be changed as appropriate. FIG. 5 shows a modified example of the side hollow portion 12 a in the vertical frame 1. The side hollow portion 12a is configured in multiple stages, and the side hollow portion 12a is partitioned along the transverse direction of the vertical frame 1 by partitioning pieces 12b. The side hollow portion 12a having this configuration can increase the strength against side impacts by a multistage configuration.

Moreover, the attachment structure of a bucket is not limited to the structure demonstrated above, It can change within the scope of the present invention.
FIG. 6 shows a modification of the bucket mounting structure. In addition, about the structure similar to what was demonstrated with the said form, the same code | symbol is attached | subjected and the description is simplified or abbreviate | omitted.

  In FIG. 6A, a step portion is formed in the cover flat side wall portion 122 such that a gap 140 is formed between the cover flat side wall portion 103 and the bucket flat side wall portion 103. The gap 140 is located inside the arrangement position of the packing 130, and moisture that has passed through the packing 130 penetrates the gap between the bucket flat side wall portion 103 and the cover flat side wall portion 122 by capillary action. To prevent.

FIG. 6B shows a configuration in which the lateral flange portion ridges 10 a are provided on the lateral flange portion 10 along the lateral direction of the longitudinal frame 1 inside the packing 130. The bucket flat side wall 107 and the cover flat side wall 122 are bent in accordance with the shape of the lateral flange ridge 10a. The bucket flat side wall portion 107 is provided with a bent shape along the entire surface of the horizontal flange portion ridge 10a, and the cover flat side wall portion 122 is formed with a bent shape along the outer surface and the upper surface of the horizontal flange portion ridge 10a. Provided. The bucket flat side wall 107 has a length that does not reach the engagement groove 14.
In the said structure, the space | gap 141 is formed inside the horizontal flange part protruding item | line 10a similarly to the said example. In this embodiment, the packing 130 is fitted into the engagement groove 14, and the cover flat side wall 122 attached on the lateral flange portion 10 is brought into close contact with the packing 130 for waterproofing.
In this form, the labyrinth structure is obtained and the waterproofness is further improved by positioning the lateral flange portion ridge 10a in addition to the engagement groove 14 and the packing 130. Moreover, the waterproof effect by the space | gap 141 is acquired similarly to the space | gap 140 of the said form.

  In the form of FIG. 6C, the flat side wall portion 108 having a small width is connected to the bucket folding side wall portion 102 of the bucket 100, while the cover flat side wall portion 122 is provided with a stepped portion to form a gap 140. Through the gap 140, the bucket flat side wall 108 is fixed to the lateral flange 10 by a rivet 151 or the like, and the edge of the bucket flat side wall 108 is located in the gap 140. The cover flat side wall portion 122 is attached to the lateral flange portion 10 and fixed by a bolt 150 or the like. Also in this embodiment, the packing 130 is fitted into the engaging groove 14, and the cover flat side wall 122 attached on the lateral flange portion 10 is brought into close contact with the packing 130 for waterproofing.

In FIG. 6D, the bucket 100 has a shape in which the side wall portion of the bucket 100 has the bucket folded side wall portion 102 and does not have the flat side wall portion, and only the cover flat side wall portion 122 is attached on the lateral flange portion 10. Has been established. A rubber packing 131 is disposed between the bucket folded side wall portion 102 and the cover side wall 121, and the packing 131 is deformed by being restrained from the outside by the cover side wall 121, so that waterproofness is achieved.
In the above description, the cover 120 is attached to the lateral flange portion with bolts and nuts. However, in the present invention, the attachment means is not particularly limited. It is also possible to adopt a fitting type structure or the like that fits these shapes.

  Moreover, in the said embodiment, sealing property is improved by inserting packing in the groove | channel shape of a horizontal flange part or a to-be-attached member. Generally, many O-rings are used for the packing. However, in the O-ring packing, it is necessary to increase the shape accuracy in order to increase the accuracy of the fitting portion, and the manufacturing cost is likely to increase. In addition, when the groove shape is arranged in a rectangular shape depending on the shape of the member to be attached, the corner portion has a sealing property due to a twist caused by the O-ring fitted in the groove shape even if the R shape is given. There is a problem that is easily damaged. In order to cope with this, it is conceivable to integrally form the packing in accordance with the groove shape, but the manufacturing cost is greatly increased. Usually, long packing members are joined together at the ends to be positioned in a groove shape such as a rectangular shape.

  Further, it is conceivable that the cross-sectional shape of the packing is wide at the bottom and narrow at the top. In this packing, as shown to Fig.9 (a), it can be made into a taper-shaped narrow width | variety toward the upper part from the downward maximum width part. In the packing 140, the lower wide portion 140a is stably fitted into the groove shape, and the upper narrow width portion 140b protrudes outward from the groove shape. When the cover 120 is put on the packing 140, the narrow width portion 140b falls along the outer side as shown in FIG. 9B, and is attached to the attached member or the lateral flange portion, so that the sealing performance can be improved. . However, even with this packing 140, it is difficult to control the falling direction of the narrow width portion 140b, and there is a problem that the sealing performance is remarkably impaired at that portion, for example, due to falling partially inward.

FIG. 7 shows a packing that prevents the occurrence of the above-mentioned problems and obtains a stable and good sealing property.
As shown in FIG. 7 (a), the packing 132 includes a fitting portion 132a that fits in a groove shape, and an outside portion that continues to the fitting portion 132a and protrudes outside the groove shape when the fitting portion is fitted in the groove shape. 132b, and a peripheral portion 132c extending to the outer peripheral side that extends to the outer peripheral side of the outing portion 132b.

  As shown in FIG. 7 (b), the packing 132 has a fitting portion 132 a fitted in a groove shape 105 as an example, and the outing portion 132 b is located outside (upper side) of the groove shape 105. The peripheral portion 132c is located on the outer peripheral side of the groove shape 105, and is attached to a horizontal flange portion or a member to be attached in which the groove shape is formed, and the cover 120 is covered to ensure sealing performance. That is, when the cover 120 is covered, the outer surface 132b and the outer peripheral side of the peripheral portion 132c and the inner surface of the cover 120 are in close contact with each other, and a good sealing property is obtained. In addition, in this packing 132, since the peripheral part 132c is necessarily located in the outer peripheral side of a groove shape, the stable sealing performance is exhibited over the perimeter. In addition, even if wrinkles or the like are generated at the corner portion at the outside portion 132b, the sealing performance is ensured at the peripheral portion 132c, so that the sealing performance is not impaired at the corner portion.

Next, a modification example of the packing is shown in FIG.
The packing 133 shown in FIG. 8A includes a fitting portion 133a that fits in a groove shape, an outer portion 133b that extends to the outside of the groove shape and continues to the outer periphery of the outer portion 133b. Part 133c. The peripheral portion 133c has a longer length in the outer circumferential direction than the peripheral portion 132c of the packing 132, and the contact length with the cover can be increased. In the packing of this invention, the contact length with a cover can be arbitrarily adjusted by adjusting the length of a peripheral part.

  The packing 134 shown in FIG. 8 (b) includes a fitting portion 134a that fits in a groove shape, an outflow portion 134b that extends to the outside of the groove shape and continues to the fitting portion 134a, and a peripheral edge that continues to the outer peripheral side of the outside portion 134b. Part 134c, and these fitting part 134a, outing part 134b, and peripheral part 134c have substantially the same shape as the packing 132. In the packing 134, a convex portion 135 is formed on the lower surface of the fitting portion 134a over the entire circumference or in a part of the circumferential direction, and a bottom groove shape in which the convex portion 135 fits is formed on the groove-shaped bottom surface. Thus, it is possible to prevent the packing 134 from being detached when the cover is removed. In particular, the convex portion 135 has a cross-sectional shape that has a wide portion on the lower side such as a circle, and the bottom groove portion has a dovetail shape that follows the cross-sectional shape of the convex portion 135. It can be surely prevented.

  As described above, the present invention has been described based on the above embodiments, but the present invention is not limited to the contents of the above description, and naturally, as long as it does not depart from the scope of the present invention. Can be changed.

1, 2, 3, 4 Vertical frame 5 Corner joint 6, 7 Comparting vertical frame 10, 20, 30, 40 Horizontal flange portion 11, 21, 31, 41 Engaging groove portion 12, 22, 32, 42 Side hollow portion 13 , 23, 33, 43 Receiving pieces 14, 24, 34, 44 Attachment part 100 Bucket 101 Bucket side wall 102 Bucket folding side wall part 103 Bucket flat side wall part 110 Battery 120 Cover 121 Cover side wall 122 Cover flat side wall part 130, 131, 132, 133, 134 Packing

Claims (10)

  In the frame structure to which the member to be attached is attached, the side wall of the member to be attached is attached to the inside, and the side wall of the member to be attached is folded outward on the upper side and attached to the outside of the upper end portion in the width direction. A vertical frame that extends, and a cover that extends outwardly from the upper surface of the vertical frame below the upper end and covers the mounted member from above, or the side wall of the mounted member and the cover are provided on the upper surface side And a horizontal flange portion.   A hollow side surface is provided along the longitudinal direction of the vertical frame on the outer surface of the vertical frame, on the lower side of the horizontal flange portion, and extends inward at the inner lower end of the vertical frame. The frame structure according to claim 1, wherein a receiving piece for receiving a bottom portion of the attached member on an upper surface side is formed, and an attachment portion for a frame attachment material is provided at an outer end portion of the lateral flange portion.   The vertical frame is arranged in a frame shape, divides the frame-shaped vertical frame in the horizontal direction, the attached member side wall is attached inside, the attached member side wall is folded outward, and the upper end side thereof The partition vertical frame is attached to the partition, and the partition vertical frame is formed of a pair of vertical plates that are spaced apart from each other and connected by connecting pieces. The frame structure according to 2.   The frame structure according to claim 3, wherein the space formed by the pair of vertical plates is capable of accommodating a wiring and / or a cooling device.   The horizontal flange portion is formed with an engagement groove portion on the upper surface side to which a downward-facing engagement protrusion formed on the attached member side wall is fitted, and the engagement protrusion and the engagement groove are formed on the vertical frame. The said attachment member side wall is formed along the longitudinal direction, The surface opposite to the surface in which the said engagement protrusion was formed is formed in the groove | channel shape through which packing passes, The Claim 1 characterized by the above-mentioned. The frame structure according to any one of the above.   The frame structure according to any one of claims 1 to 5, wherein the lateral flange portion has a groove shape through which packing is formed on an upper surface side.   The packing is connected to the fitting portion that fits into the groove shape, the outside portion that protrudes outside the groove shape when the fitting portion is fitted into the groove shape, and the outer circumference side of the outside portion. The frame structure according to claim 5 or 6, further comprising a peripheral edge extending toward the outer peripheral side.   The frame structure according to claim 1, wherein the attached member is a bucket.   9. The frame-shaped vertical frame is configured by connecting the vertical frames to each other by a rigid joint at a corner portion where a plurality of vertical frame ends are located. Frame structure.   The frame structure according to any one of claims 1 to 9, wherein a bottom plate that covers a bottom portion of the attached member and is fixed to the vertical frame is disposed below the vertical frame.

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