JP2013018486A - Frame structure of car washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To fix the processed structure by a method other than welding in addition to the processing technology of a hollow square material, thereby saving and simplifying the fixing work, and improving productivity and economy. The aim is to improve the frame structure of a robust car wash machine with high assembly strength and rigidity.
In a car wash machine in which a car wash treatment apparatus with water spray is mounted on a main body frame 1 and the car body is washed with relative movement with an automobile, the end of a hollow square member 40 is joined to the surface of a hollow square member 41; The main body frame 1 is constructed without welding by a joining structure in which this joining state is fixed by the fastening means 50.
[Selection] Figure 2

Description

  The present invention relates to an assembly fixing structure for a hollow square member and a frame structure of a car wash machine using the assembly fixing structure and requiring no welding.

  The frame structure of a conventionally known car wash machine has been fixed by welding by combining L-shaped angle members. While fixing by welding is excellent in terms of strength, it requires workmanship and requires problems such as a decrease in productivity and an increase in cost.

As a structure for assembling a three-dimensional frame, as shown in Patent Document 1, a long hollow square member is bent to form an L-shaped bent structure, or the end of the other square member is attached to the side surface of one square member. An assembly structure has been proposed that forms a T-shaped joint structure by bonding. Even in such a structure, the final fixing work is performed by welding, and the above-described problems due to welding and fixing are not solved.
JP 2000-345623 A

  The problem to be solved by the present invention is to fix the processed structure by a method other than welding in addition to the processing technology of the hollow square material, thereby saving and simplifying the fixing work, and improving productivity and economy. It is intended to realize a robust car wash machine frame structure with high assembly strength and rigidity.

  In order to solve the above-mentioned problems, the present invention is a car wash machine in which a car wash treatment device with watering is mounted on a main body frame and the car body is washed with relative movement with an automobile. In a frame structure of a car wash machine in which the main body frame is constructed without welding with a joining structure in which the joining state is fixed by a fastening means, the joining structure is provided at the front end of the first square member and on the side surface of the second square member. A fitting projection and a bent piece that is bent at a substantially right angle inside the first square member are formed, and a fastening receiving plate that is clamped at the tip of the first square member by the bent piece is attached, and the second square member On the side surface, a fitting hole into which the projection of the first square bar is fitted, an engagement hole opened in the bent piece of the first square bar, and an engagement hole fastened by the fastening means are formed. Fasten to the surface other than the surface to which the square bar is joined with fastening means To work holes formed for, characterized in that it is fixed by bonding first and timbers the second square timber with fastener.

  According to the present invention, the first base material and the second base material are joined to each other, and after positioning of the assembly, both are fixed by a fastening body (screws, bolts, etc.), so that welding is unnecessary. As a result, labor saving and simplification of the assembling work can be achieved, and a robust frame structure for a car wash machine having high assembling strength and rigidity can be provided.

Embodiment 1 of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a car wash machine of Example 1, and FIG. 2 is an external view showing a frame structure of the car wash machine.
Reference numeral 1 denotes a main body frame which is formed in a gate shape so as to straddle the automobile A stopped between the rails 2 and 2 and travels back and forth on the rail to wash and dry the automobile. 3 is an upper brush for brushing the upper surface of the automobile, 4 and 4 are side brushes for brushing the side and front and rear surfaces of the automobile, 5 is an upper blower nozzle that blows air on the upper surface of the automobile to dry, and 6 and 6 are side faces of the automobile. These side-washing blower nozzles are intended to dry by blowing air on them, and each of these car wash processing devices 3 to 6 acts on the vehicle body of the automobile by a known actuating device. 7A and 7B are provided in front of the brushes 3 and 4 of the car wash machine 1 to detect the top shape of the car from the side of the car, and 8 is a pulse output each time the car wash machine body 1 travels a unit distance. Encoders 9 and 9 are motors for driving the main body 1.

The main body frame 1 is assembled by bending and joining long hollow square members. The feature of this frame is a rolled-up structure in which a single long hollow square member is bent at a plurality of positions at right angles and the tip is joined to the surface of the square member as seen in the thin ink portion in FIG. (Hereinafter, the entrainment structure) is formed in combination. With this configuration, a high strength is obtained while being easy to process and incorporate, and an excellent effect is achieved in that the frame of the movable body can be configured without welding. When such a frame structure is used for the frame of a car wash machine, the entraining structures are assembled by surface joining, but reinforcement is achieved by partially changing the density of the entraining structure, that is, the entrainment pitch and the assembly pitch. It is illustrated. For example, a portion equipped with a brush and a nozzle and a portion equipped with a traveling wheel are arranged more densely than other portions.
The bending structure (part A in FIG. 2), the joining structure (part B in FIG. 2), and the surface joining part (part C in FIG. 2) of the winding structure will be described below.

First, the configuration of the bent structure will be described with reference to FIGS.
The hollow square member 10 has a quadrangular prism shape surrounded by four surfaces 10A to 10D, and a notch portion 11 is formed at a bending position. The notch 11 is formed by cutting the three surfaces 10B, 10C, and 10D except the surface 10A into a predetermined shape by NC laser processing or the like, and then cutting the cut portion with a jig or the like, and the hollow square member 10 is connected by the surface 10A. The first base 12 and the second base 13 are divided. The bent structure is configured by bending the hollow square member 10 into a substantially L shape so that the first base 12 and the second base 13 are brought into contact with each other at the notch 11.

  As shown in FIG. 3, the notch 11 is provided with cut grooves 14 and 14 serving as a bending reference for the first base material 12 and the second base material 13 on the surface 10 </ b> A, and on the surfaces 10 </ b> B and 10 </ b> D, Joining edges 15, 15 ′, 16, 16 ′ cut at approximately 45 ° from the insertion groove 14 to the surface 10 </ b> C are formed, and the fragments supporting the bending of the first base material 12 and the second base material 13 on the surface 10 </ b> C. 17 and 18 are formed. The cut groove 14 is provided in a corner portion from the surface 10A to the surface 10B and a corner portion from the surface 10A to the surface 10D at the boundary position between the first base material 12 and the second base material 13, and the hollow square member 10 is bent. The reference line L1 is virtually formed. The joining edges 15, 15 ′ and 16, 16 ′ are in contact with each other when the first substrate 12 and the second substrate 13 are bent, and form the outer shape of the bent structure.

  The fragment 17 is formed in a convex shape at the inner edge portion of the surface 10C of the first base member 12, and cut grooves 19 and 19 serving as a bending reference are formed at a boundary portion with the surface 10C. , 19 is provided with a substantially U-shaped cutout hole 20 at the center position of the bending reference line L2. When this piece 17 is bent at a substantially right angle inward of the first base member 12 along the bending reference line L2, a portion surrounded by the cutout hole 20 becomes a convex piece 21, and a portion excluding the convex piece 21 is the first portion. 2 It becomes the joining piece 22 with the fragment 18 of the base material 13. The fragment 18 is formed in a convex shape at the inner edge of the surface 10C of the second base material 13, and a long hole 23 into which the convex piece 21 of the fragment 17 is fitted is opened at a boundary position with the surface 10C.

  In FIG. 3, reference numeral 24 denotes a mounting reinforcing plate having an H shape in which convex portions are formed at four corners, and recessed grooves 25 and 25 formed at the base end portion of the fragment 17 on the surface 10 </ b> C of the first base material 12, and the surface 10 </ b> A. Are attached between the mounting holes 26 and 26 opened at the hanging positions of the recessed grooves 25 and 25. The attachment reinforcing plate 24 is brought into contact with the joining piece 22 when the piece 17 is bent inward of the first base member 12.

  With such a shape, as shown in FIG. 4, the mounting reinforcing plate 24 is attached to the first base member 12, and after the piece 17 is bent inward of the first base member 12 along the bending reference line L <b> 2, 10 is bent so that the first base material 12 and the second base material 13 are abutted with each other at the bending reference line L1, the convex piece 21 of the fragment 17 is fitted into the elongated hole 23 of the fragment 18 while being positioned. As a result, the joining edges 15 and 16 of the first substrate 12 and the joining edges 15 'and 16' of the second substrate 13 come into contact to form a right-angled bent structure.

  When the bending structure is formed in this way, as shown in FIG. 5, the joining piece 22 of the fragment 17 of the first substrate 12 and the fragment 18 of the second substrate 13 are in contact with each other. Screw holes 27, 28, 29 are opened in the joint piece 22, the piece 18, and the attachment reinforcing plate 24 at positions where they are in contact with each other, and the screw holes 27, 28, 29 are connected to each other. By integrally joining with the bolts 30, the bent state of the first base material 12 and the second base material 13 is maintained.

  The through hole 31 for attaching the bolt 30 is opened on the axis of the screw holes 27, 28, 29 on the surface 10 </ b> A of the second base material 13, and screwing work is achieved from the through hole 31. As a result, the bent structure is firmly tightened with the joining piece 22, the piece 18 and the mounting reinforcing plate 24, so that the bent state of the first base material 12 and the second base material 13 is firmly strengthened, and the spring back is A bending structure can be constructed without causing it. Although an example in which one screw hole is opened in the fragment is shown here, it goes without saying that a plurality of screw holes may be provided and fixed with a plurality of screws.

Subsequently, the configuration of the bonding structure will be described with reference to FIGS. For the convenience of explanation, the hollow square members 40 and 41 are used. However, in the case of the entrainment structure, one hollow square member is bent inward by 90 degrees with the bent structure, and the tip is joined to one surface. It becomes.
The hollow square member 40 has pieces 42 and 42 formed at the front ends of the faces 40A and 40C facing each other, and a concave groove 43 that is recessed into the faces 40A and 40C is formed at the base ends of the pieces 42 and 42, and the face 40B. -Engagement protrusions 44, 44 are formed at the tip of 40D. The fragments 42, 42, the recessed groove 43, and the engaging projections 44, 44 are formed by cutting the tip of the hollow square member 40 into a predetermined shape by NC laser processing or the like and then cutting the cut portion.

  Each of the pieces 42 and 42 has a cut groove 45 at the boundary position with the surfaces 40A and 40C, and can be folded inward along a folding reference line L3 provided by the cut groove 45, and is approximately centered. A screw hole 46 is opened in the part. The recessed groove 43 is cut integrally with the cut groove 45 at the base end portions of the pieces 42 and 42, and an H-shaped attachment reinforcing plate 48 having convex portions formed at the four corners is attached. The engagement protrusions 44 and 44 are formed to protrude from the tips of the surfaces 40B and 40D, and the sizes of the both are made different to give directionality at the time of attachment.

  The mounting reinforcing plate 48 has two screw holes 49 and 49 opened, and the pieces 42 and 42 are bent inward while being attached to the recessed grooves 43 of the hollow square member 40, so that the screw holes 46 of the pieces 42 are formed. And the screw hole 49 of the mounting reinforcing plate 48 match. The mounting reinforcing plate 48 is provided with a slit 50 between the two screw holes 49. Due to the slit 50, the attachment reinforcing plate 48 is easily deformed, and when it is screwed, the adhesiveness with the fragment 42 is enhanced and the joined state is strengthened.

  The hollow square member 41 includes engagement holes 51 and 51 into which the engagement protrusions 43 and 43 of the hollow square member 40 are inserted in a surface 41A to which the hollow square member 40 is joined, and a screw hole 52 that fixes the hollow square member 40 in a joined state. , 52 are opened, and through holes 54, 54 for attaching bolts 53, 53 to the screw holes 52, 52 are opened in the surface 41C facing the surface 41A. The sizes of the engaging holes 51 and 51 are different according to the shape of the engaging projections 44 and 44 of the hollow square member 40.

A procedure for forming a bonded structure with the hollow square member 40 and the hollow square member 41 configured as described above will be described.
As shown in FIG. 6, the attachment reinforcing plate 48 is attached to the recessed groove 43 of the hollow square member 40, and the pieces 42, 42 are bent inward. Thereby, the screw hole 46 of the piece 42 and the screw hole 49 of the attachment reinforcing plate 48 are matched. Thereafter, when the engaging projections 44, 44 of the hollow square member 40 are inserted into the engagement holes 51, 51 of the hollow square member 41 with the same size, the tip of the hollow square member 40 is temporarily fixed to the surface 41A of the hollow square member 41. In this state, the screw holes 52, 52 of the hollow square member 41 and the screw holes 46, 46 of the hollow square member 40 are matched, so that the bolts 53, 53 are inserted and fixed through the through holes 54, 54. Since the screw holes 46 and 46 of the hollow square member 40 are aligned with the screw holes 49 of the mounting reinforcement plate 48, a joined structure in which the hollow square member 40 and the hollow square member 41 are firmly joined by fastening the bolts 53 and 53. Can be formed. At this time, by tightening the bolts 53, 53, the attachment reinforcing plate 48 is deformed by the slit 50, and the adhesion with the fragment 42 is increased.

Next, the case where the hollow square members are surface-bonded will be described with reference to FIGS.
In the hollow square member 60, a bolt through hole 62 is opened on a surface 60 </ b> A that is a contact surface with the hollow square member 61. On one of the surface 60B and the surface 60D (here, the surface 60B) connected to the surface 60A, a piece 63 that is bent toward the inner surface 60A ′ of the surface 60A in which the bolt through holes 62 are opened is cut out and formed. ing. This piece 63 is formed into a rectangular shape by a cut groove 65 in which the three sides of the surface 60B excluding the edge portion 64 with the surface 60A are cut into a substantially U shape by NC laser processing or the like.

  A nut mounting groove 66 for holding the flanged nut is cut out in the piece 63. The nut mounting groove 66 forms a flange insertion portion 66a into which the flange portion of the flanged nut can be inserted on the ridge edge portion 64 side of the fragment 63, and the nut portion of the flanged nut is formed on the free end portion 67 side of the fragment 63. A nut holding portion 66b that can be inserted is formed.

  In addition to the bolt through hole 62, the surface 60A is formed with a retaining piece 68 that prevents the nut with a flange attached to the nut attaching groove 66 of the piece 63 from coming off. The retaining piece 68 is molded into a rectangular shape by a cut groove 69 that is cut into a substantially U shape by NC laser processing or the like on three sides.

FIG. 10 is an explanatory view showing a state in which the piece 63 is bent, and FIG. 11 is an explanatory view showing a state in which a nut with a flange is attached to the piece 63.
First, the nut mounting groove 66 is punched, and the piece 63 is bent by approximately 90 ° toward the inner surface A ′ of the surface A where the bolt through-holes 62 are opened, with the ridge edge 64 as a bending reference. At this time, it is bent so that a gap S is formed between the inner surface A ′ of the surface A and the piece 63 so that the flange portion 70a of the flanged nut 70 is loosely fitted (FIG. 10).

  Next, the flange portion 70 a of the nut 70 with flange is inserted into the gap S from the flange insertion portion 66 a of the nut attachment groove 66, and the nut portion 70 b is fitted into the nut insertion portion 66 b of the nut attachment groove 66. Thereafter, the retaining piece 68 formed on the surface 60 </ b> A is pushed inward so that the displaced retaining piece 68 is engaged with the flange portion 70 a of the flanged nut 70 attached to the nut attaching groove 66. As a result, the flanged nut 8 is attached at a position facing the bolt through-hole 62 in a state where the nut 8 with the flange is positioned, prevented from rotating, and prevented from coming off (FIG. 11). That is, when the nut portion 70b of the flanged nut 70 is fitted into the nut insertion portion 66b, the screw hole 70c of the nut 70 is positioned so as to communicate with the bolt through hole 62, and the rotation is prevented when the bolt is screwed. In addition, the flange portion 8a is locked to the retaining piece 68 to prevent it from coming off.

FIG. 12 is an explanatory view showing a state in which another hollow square member is surface-joined to the hollow square member 60 having a nut holding structure.
The hollow square member 61 is fixed with bolts 71 in a state where the flanged nut 70 is attached to the nut attachment groove 66 of the bent piece 63. That is, the bolt hole 72 opened on the surface 61A of the hollow square member 61 and the bolt through hole 62 of the hollow square member 60 are combined, and the bolt 71 is inserted and screwed from the bolt through hole 73 opened on the surface 61C of the hollow square member 61. At this time, the flanged nut 70 is positioned, prevented from rotation and prevented from coming off by the nut mounting groove 66 and the retaining piece 68, so that it is possible to perform the joining operation very simply by screwing the bolt 71. .

It is explanatory drawing which shows the car wash machine of this invention. It is explanatory drawing which shows the structure of the main body frame 1 of a car wash machine. It is explanatory drawing which shows the assembly fixing structure of a bending structure. It is explanatory drawing which shows the assembly procedure of a bending structure. It is explanatory drawing which shows the assembly state of a bending structure. It is explanatory drawing which shows the assembly fixing structure of joining structure. It is explanatory drawing which shows the assembly state of joining structure. It is explanatory drawing which shows the junction part of junction structure. It is an external view which shows the hollow square material of a surface joining structure. It is explanatory drawing which shows the state which attached the nut 70 with a flange to the fragment | piece 63. FIG. It is explanatory drawing which shows the state which surface-joins hollow square materials.

DESCRIPTION OF SYMBOLS 1 Main body frame 10 Hollow square material 11 Notch part 12 1st base material 13 2nd base material 17 Fragment 18 Fragment 24 Mounting reinforcement plate 30 Bolt (fastening means)
40 Hollow square material 41 Hollow square material 42 Piece 48 Nut holding plate 50 Nut with flange 54 Bolt (fastening means)
60 Hollow square material 61 Hollow square material 63 Piece 68 Stopping piece 70 Nut with flange 71 Bolt

Claims (1)

A car wash machine equipped with a car wash treatment device with sprinkling on the main body frame to clean the car body as the car moves relative to the car. Join the end of the hollow square to the surface of the hollow square and fasten this joint. In the frame structure of a car wash machine in which the main body frame is constructed without welding with a joint structure fixed by means,
In the joining structure, a protrusion that fits to a side surface of the second square member and a bent piece that is bent at a substantially right angle inside the first square member are formed at the tip of the first square member, and the bent piece is A fastening receiving plate that is clamped at the tip of the first square member is attached, a fitting hole in which a projection of the first square member is fitted on a side surface of the second square member, and an engagement hole that is opened in a bent piece of the first square member An engagement hole to be fastened by the fastening means is formed, and a work hole for fastening with the fastening means is formed on a surface other than the surface to which the first square member is joined, and the first square member and the second square member are formed. A frame structure of a car wash machine, characterized by being fixed by joining square members with a fastening body.

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