JP7297407B2 - fittings and car wash - Google Patents

Description

The present invention relates to joints and car wash machines .

Conventionally, as disclosed in Patent Document 1, there has been known a car wash machine in which a car wash main body provided with a car wash treatment device is moved relative to a vehicle, and the car wash treatment device acts on the surface to be washed of the vehicle body along with the movement. It is This car wash machine is equipped with washing nozzles for spraying washing water and detergent, top and side washing brushes for brushing the vehicle body surface, and drying nozzles for blowing high-pressure air onto the vehicle body surface. and drying have become feasible.

In such a car wash machine, it is impossible to avoid the wear of the washing brush that performs brushing washing by physically contacting the vehicle body, and it is treated as a consumable item. Therefore, every time a predetermined number of cars are washed, a cleaning brush whose bristles have worn out is replaced with a new cleaning brush.

Cleaning brushes include top cleaning brushes and side cleaning brushes, each of which has a different mounting structure. The side cleaning brush is for brushing the side of the car body, and is installed in an upright state, that is, in a state in which the longitudinal direction of the brush is substantially perpendicular to the car wash machine, and the upper end of the brush shaft located in the center of the brush. is connected to the brush drive shaft with a cantilever structure. The rotational driving force of the motor is transmitted to the brush driving shaft, and the rotational driving force is transmitted to the upper end of the brush shaft of the side cleaning brush set in a vertical posture, and the bristles of the brush are pushed against the side of the vehicle body. Brushing is performed by rotating horizontally. Since the bristles are planted along the longitudinal direction of the side surface cleaning brush, the side surface of the vehicle body is washed in the range in contact with the bristles.

The upper surface washing brush is for brushing the upper surface of the vehicle body, and is horizontally attached to the main body of the car washing machine. The brush shaft located in the center of the brush has one end connected to the brush drive shaft and the other end pivotally supported on the car wash machine main body side, and is horizontally supported by a double-support structure. Rotational driving force of the motor is transmitted to the brush drive shaft, and the brush drive shaft is integrally fixed to one end of the brush shaft, so that the upper surface cleaning brush is rotationally driven in a horizontal posture. . The upper surface washing brush, which is horizontally attached to the car wash machine, is vertically controlled in conjunction with the relative movement between the car wash machine body and the vehicle, and as a result, the upper surface of the vehicle is brushed and washed from the front end to the rear end of the vehicle. .

In this manner, the side surface cleaning brush is supported by a cantilever structure at the upper end of the brush shaft in an upright state, and the upper surface cleaning brush is horizontally supported by a structure in which both the left and right ends of the brush shaft are supported. As for the fixing structure to the brush drive shaft provided on the car wash machine main body, a structure is adopted in consideration of the replacement work of the brush. In particular, for the upper surface washing brush that rotates while supporting the brush horizontally, the operation control is performed to keep the horizontal position during the car washing operation and to contact and separate from the vehicle body surface. Workability during replacement work is also ensured. Specifically, as shown in FIG. 7, a shaft coupling 50 connecting the brush drive shaft and the brush shaft is configured by a boss member 50a and a clamp member 50b, and the clamp member 50b is attached to the boss member 50a fixed to the brush shaft. It has a fixed structure. A metal shaft passing through the center of the brush shaft is connected to the boss member 50a, and a drive shaft mounting portion to be mounted on the end of the brush drive shaft is formed in the clamp member 50b. In a state in which the metal shaft on the boss member 50a side and the brush drive shaft on the clamp member 50b side are butted against each other so that the centers of the shafts are aligned with each other, the boss member 50a and the clamp member 50b are fixed with bolts to form a brush shaft. and the brush drive shaft are fixed and centered. A key coupling structure is provided between the brush driving shaft and the clamping member 50b. A key formed on the brush driving shaft side and a key groove formed on the clamping member 50b side are engaged with each other to rotate the brush. A drive shaft and brushes are coupled. The clamp member 50b, which is engaged with the drive shaft through the key groove, is in a state where it is prevented from idling in the rotational direction of the shaft by the key coupling structure. The member 50b is fixed integrally. On the other hand, the boss member 50a is fixed to the brush shaft by screwing a bolt from the outer side of the brush shaft while being fitted inside the brush shaft. The brush shaft, the boss member 50a, the clamp member 50b, and the brush drive shaft are integrally fixed by bolting the clamp member 50b fixed to the brush drive shaft.

As described above, the brush drive shaft on the car wash machine main body side and the upper cleaning brush are fixed firmly and replaceably. On the other hand, such a conventional fixed structure also had the following problems. Since the brush drive shaft and the brush shaft are fixed very firmly via the boss member 50a and the clamp member 50b, eccentricity occurs when the boss member 50a and the clamp member 50b are butted against each other and fixed. When the force was generated, in the worst case, there was a possibility that it would lead to breakage of the brush shaft. Each member that is fixed together in a normal state is made of vinyl chloride resin only for the brush shaft, and the other members are made of metal material. The vinyl chloride resin, which lacks in strength, will be damaged.

In addition, since the brush drive shaft and the brush shaft are fixed via a plurality of members such as the boss member and the clamp member, there is a problem of misalignment in assembling the members and occurrence of mechanical wear and rattling due to long-term use. could not be ruled out. If there is a deviation when the members are assembled and fixed together, there is a problem that it leads to eccentricity between the brush drive shaft and the brush shaft.

JP-A-2005-225407

One object of the present invention is to provide a joint that connects a first shaft and a second shaft, and to provide a technique that can ensure workability of the joint (for example, replacement).

One solution of the present invention is a joint connecting the first shaft and the second shaft. The joint has a boss portion to which the first shaft is fitted and fixed from the outside, a hub portion having a shaft hole, and a hub portion to which the second shaft is inserted and fixed in the shaft hole; It has Here, in the joint, the boss portion and the hub portion are integrally formed. Further, in the joint, a notch is formed between the boss portion and the hub portion. Further, in the joint, a split groove is formed in the hub portion in a radial direction from the shaft hole.

According to one solution means of the present invention, it is possible to secure the workability of the joint.

BRIEF DESCRIPTION OF THE DRAWINGS It is explanatory drawing which shows the car wash machine which concerns on this invention Example. BRIEF DESCRIPTION OF THE DRAWINGS It is plane explanatory drawing which shows the car wash machine based on this invention Example. It is explanatory drawing which shows the raising/lowering apparatus of an upper surface washing brush. FIG. 4 is an explanatory view showing a vertical movement holding device for the upper surface washing brush; It is explanatory drawing which shows the back-and-forth movement holding|maintenance apparatus of an upper surface washing brush. It is an explanatory view showing joint structure of a brush shaft and a brush drive shaft. It is an explanatory view showing a conventional joint structure.

Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing a car wash machine according to the present invention, and FIG. 2 is an explanatory plan view of the same.
A car wash machine body 1 is formed in a gate shape so as to straddle an automobile stopped between rails 2 laid on an earthen floor, and travels back and forth on the rails to wash and dry the automobile. 3 is a top cleaning brush for brushing the top surface of the automobile, 4 and 4 are side cleaning brushes for brushing the side and front and rear surfaces of the automobile, 5 is a top blower nozzle for blowing air onto the top surface of the automobile to dry the vehicle body, 6 and 6 is a side blower nozzle for blowing air to the side of the automobile to dry the car body. 7A and 7B are provided in front of the brushes 3 and 4 of the car wash machine main body 1, and detect the shape of the upper surface of the vehicle from the side of the vehicle by receiving light emitted from one side and received by the other side. is an encoder that outputs a pulse each time the car wash machine main body 1 travels a predetermined distance;

3 to 5 are explanatory diagrams showing the structure of the upper cleaning brush. The upper surface washing brush 3 vertically moves up and down on elevating rails 12L and 12R vertically installed in the car washing machine main body 1 by carriers 13L and 13R attached to both ends of the brush shaft 10, and the carriers 13L and 13R are raised and lowered. An elevating device 14, a vertical holding device 15 that holds the brush shaft 10 so that it can swing vertically within a predetermined range, and a front-rear holding device 16 that holds the brush shaft 10 so that it can swing forward and backward within a predetermined range. , and one of the carriers (13R in the illustrated example) is provided with a brush motor 17 that rotates the brush shaft 10 forward and backward. The rotational driving force of the brush motor 17 is transmitted to the brush driving shaft 35, and the brush driving shaft 35 is connected to the brush shaft 10, thereby driving the upper cleaning brush 3 to rotate. The brush driving shaft 35 passes through the inside of the brush shaft 10, and extends from the carrier 13R to the carrier 13L in the figure to support the upper cleaning brush 3. As shown in FIG.

As shown in FIG. 3, the lifting device 14 includes a chain 18 endlessly connecting the upper end and the lower end of the carrier 13, sprockets 19LU, 19RU, 19LL, 19RL around which the chain 18 is suspended, and an upper left sprocket 19LU. and the upper right sprocket 19RU; an encoder 21 that outputs a pulse each time the rotary shaft 20 rotates a predetermined number; ing. With this configuration, when the lift motor 22 is driven, the left and right carriers 13L and 13R are synchronously driven up and down, and the upper surface cleaning brush 3 between the carriers moves up and down in a horizontal state. Limit switches 23 and 24 are provided at the upper and lower portions of the lifting rail 12, and are used to control the lifting and lowering of the carrier 13 by switching to give rise and fall limits by contact with the carrier 13. FIG.

As shown in FIG. 4, the vertical holding mechanism 15 includes a working rod 25 vertically penetrating the carrier 13, an upper spring 26 attached between the upper end of the penetrating working rod 25 and the upper surface of the carrier 13, and a working rod. 25 and a lower spring 27 attached between the lower surface of the carrier 13 . A chain 18 of the lifting device 14 is connected to the upper and lower ends of the operating rod 25, and the carrier 13 of the upper cleaning brush 3 is balanced around the operating rod 25 while being urged by upper and lower springs 26 and 27. It is in the shape of As a result, when the upper surface washing brush 3 comes into contact with the vehicle body, the brush is allowed to move up and down within the movable range of the springs 26 and 27, and the pressing pressure is absorbed. Limit switches 28 and 29 are provided at the upper and lower portions of the movable rod 25, and are used to detect the limit points of upward and downward displacement by switching upon contact with the carrier 13, and to control the upward/downward movement of the carrier 13. be done.

As shown in FIG. 5, the front and rear holding mechanism 16 includes a pair of front and rear pulley bodies 30, 30 provided inside the carrier 13 so as to sandwich the elevating rail 12, and a pair of pulley bodies 30, 30 extending from the pulley bodies 30, 30 to the carrier inner surface side. Support rods 31, 31 penetrating the side surface of the carrier to form free ends, and springs 32, 32 wound around the support rods 31, 31 and mounted between the pulleys 30, 30 and the inner surface of the carrier. It consists of As a result, when the upper surface cleaning brush 3 comes into contact with the vehicle body, the brush is allowed to move back and forth by the movable range of the springs 32, 32, and the pressing pressure is absorbed. Reference numerals 33 and 34 are limit switches provided inside the carrier, which are switched by contact of the pulley bodies 30 and 30 to detect limit points of forward displacement and backward displacement, and are used to control the lifting operation of the carrier 13. be done.

Next, the joint structure between the brush shaft and the brush drive shaft will be described with reference to FIG. Reference numeral 40 denotes a shaft coupling according to the present invention, which is composed of a boss portion 40a and a clamp hub portion 40b integrally formed. The boss portion 40a has a cylindrical shape that fits inside the cylinder of the brush shaft 10 having a cylindrical shape, and a fixing bolt hole 41 is provided on the outer peripheral surface of the cylinder. The fixing bolt holes 41 are provided corresponding to the fixing holes 42 provided in the brush shaft 10, and the positions of the fixing holes 42 of the brush shaft 10 and the fixing bolt holes 41 of the boss portion 40a are aligned. The brush shaft 10 and the shaft coupling 40 are fixed by tightening the shaft coupling fixing bolt 48 from the outer surface side of the brush shaft 10 . A flange 40c is formed between the boss portion 40a and the clamp hub portion 40b. When fitting the boss portion 40a to the brush shaft 10, the shaft coupling 40 is inserted to a proper position by inserting the flange 40c to a position where it contacts the opening edge of the brush shaft 10. In this state, the shaft coupling is inserted. By rotating the entire 40 in the axial direction, the fixing holes 42 and the fixing bolt holes 41 can be aligned.

When the brush shaft 10 and the shaft coupling 40 are fixed in this manner, the boss portion 40a is completely inserted into the cylinder of the brush shaft 10, and the flange 40c abuts against the end portion of the brush shaft 10, thereby clamping the clamp hub portion 40b. becomes exposed. The clamp hub portion 40b has a notch 44 provided in the radial direction to form a clamp hub mechanism. Reference numeral 43 denotes an axial hole through which the brush drive shaft 35 is inserted. From this axial hole, a split groove 45 is formed in the radial direction of the clamp hub mechanism portion, and is substantially C-shaped in the insertion direction of the brush shaft 10. It forms a clamp hub mechanism. A clamp bolt hole 46 is provided in a direction orthogonal to the split groove 45 , and a clamp bolt 47 can be attached to the clamp bolt hole 46 .

When the brush driving shaft 35 is inserted into the shaft hole 43 and the clamp bolt 47 is mounted in the clamp bolt hole 46 and screwed, the groove width of the split groove 45 is narrowed and the diameter of the shaft hole 43 is reduced. As a result, the inner peripheral surface of the shaft hole 43 is brought into surface contact with the outer peripheral surface of the brush drive shaft 35, and the clamp hub portion and the brush drive shaft 35 are fastened. The shaft couplings 40 are attached to both end portions of the brush shaft 10 and are integrally fixed by being fastened to the brush drive shaft 35 at both end portions. According to the present invention, since the shaft coupling that connects the brush drive shaft of the car wash machine main body and the brush shaft of the washing brush is composed of one member, there is a possibility that it may occur when assembling a plurality of members. Eccentricity of a certain axis can be prevented as much as possible. In addition, since the clamp hub structure is used to fix the brush drive shaft and the shaft coupling, even if the shaft is eccentric and an unnatural load is applied, the load will be received and the clamp hub will not operate. This prevents damage to the brush shaft due to wear and slippage occurring in the parts, and the fixation between the brush drive shaft and the shaft coupling being released, causing idling. Furthermore, the brush driving shaft is passed through from one end to the other end of the brush shaft, and the upper surface cleaning brush is horizontally supported around the brush driving shaft. can be reduced, and the possibility of leading to a brush breakage accident can be reduced.

Next, a replacement procedure for the upper surface cleaning brush 3 will be described. When the bristle material of the brush wears or the brush body malfunctions, the upper surface cleaning brush 3 fixed integrally with the brush driving shaft 35 is detached and a new brush is attached to replace the brush. can be done. First, the brush drive shaft 35 rotatably supported by the carriers 13L and 13R is removed. In this case, since the brush motor 17 is provided on the carrier 13R side in the illustrated example, after removing the chain (not shown) suspended between the brush motor 17 and the brush drive shaft 35, The brush drive shaft 35 fixed integrally with the brush shaft 10 is removed and separated from the car wash machine main body 1.例文帳に追加By loosening the clamp bolts 47 of the shaft joints 40 attached to both ends of the brush shaft 10, the assembly of the separated upper cleaning brush 3 and the brush drive shaft 35 can be driven in the axial direction of the brush shaft 10. The shaft 35 becomes slidable, thereby allowing the brush drive shaft 35 to be pulled out. When replacing the upper surface cleaning brush 3, it is necessary to remove the shaft coupling 40 from the brush shaft 10 to be replaced and replace it with a new brush shaft 10. is loosened, the shaft coupling fixing bolt 48 is removed, the brush driving shaft 35 is extracted from the shaft coupling 40 at one end thereof, and the shaft coupling 40 is further removed from the brush shaft 10 . At the shaft coupling 40 at the other end, the brush drive shaft 35 can be completely removed from the brush shaft 10 by removing at least the shaft coupling fixing bolt 48 . In this way, the work of removing the top cleaning brush 3 that has been used and worn out is performed. The subsequent procedure for installing the new upper surface washing brush 3 is carried out by reversing the procedure for removing the old brush, and the assembly of the new upper surface washing brush 3 and the brush driving shaft 35 is assembled to the car wash machine main body. A series of tasks are completed.

1 car wash machine main body 3 upper surface cleaning brush 10 brush shaft 12L, 12R upper elevating rail 13L, 13R carrier 17 brush motor 40 shaft coupling 40a boss portion 40b clamp hub portion 40c flange 41 fixing bolt hole 42 fixing hole 43 shaft hole 44 notch Part 45 Split groove 46 Clamp bolt hole 47 Clamp bolt 48 Shaft coupling fixing bolt

Claims (3)

A car washing machine comprising a joint connecting a first shaft and a second shaft, a washing brush, and a motor for rotating the washing brush ,
The joint is
a boss to which the first shaft is fixed while being fitted on the outside;
a hub portion having a shaft hole and fixed with the second shaft inserted into the shaft hole;
The boss portion and the hub portion are integrally formed,
A notch is formed between the boss portion and the hub portion , and a flange is formed on the boss portion side of the notch,
On the outer peripheral surface of the cylindrical boss portion, a plurality of positioning holes corresponding to the plurality of holes of the first shaft into which fixing bolts are tightened are formed in the axial direction at different distances from the flange. formed,
A split groove is formed in the hub portion in a radial direction from the axial hole and connected to the notch, and a bolt hole is formed in a direction perpendicular to the split groove in the outer peripheral surface of the hub portion,
The notch remains a gap so that the groove width of the split groove is narrowed by the clamp bolt mounted in the bolt hole and the diameter of the shaft hole is reduced,
The first shaft is the brush shaft of the cleaning brush, and the second shaft is the drive shaft on the motor side ,
A car wash machine characterized by: A car washing machine comprising a joint connecting a first shaft and a second shaft, a washing brush, and a motor for rotating the washing brush ,
The joint is
a boss to which the first shaft is fixed while being fitted on the outside;
a hub portion having a shaft hole and fixed with the second shaft inserted into the shaft hole;
The boss portion and the hub portion are integrally formed,
A notch is formed between the boss and the hub so that the hub has a clamping mechanism , and a flange is formed on the boss side of the notch,
On the outer peripheral surface of the cylindrical boss portion, a plurality of positioning holes corresponding to the plurality of holes of the first shaft into which fixing bolts are tightened are formed in the axial direction at different distances from the flange. formed,
The clamp mechanism portion has a split groove formed in a radial direction from the shaft hole so that the diameter of the shaft hole can be reduced, and a bolt hole is formed in a direction orthogonal to the split groove on the outer peripheral surface of the hub portion. and a clamp bolt is attached to the bolt hole ,
The first shaft is the brush shaft of the cleaning brush, and the second shaft is the drive shaft on the motor side ,
A car wash machine characterized by: allowing the drive shaft to pass through from one end to the other end of the cylindrical brush shaft;
The drive shaft and the brush shaft are fixed by the joints provided at one end and the other end of the brush shaft, respectively.
The car wash machine according to claim 1 or 2 .

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