JP2018034139A - Liquid coating apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid coating apparatus capable of coating liquid such as lubricant on a curved surface such as a tooth surface of a gear with a simple configuration.SOLUTION: In a nozzle 32 of a liquid coating device, a receiving port 321 for receiving liquid supplied from a container to the inside and dropping ports 323A to O and 324A to O for dropping the liquid received inside are formed. In a wall section 322A configuring the nozzle 32, an external surface of the wall section adjacent to a curved surface to be a coating object of liquid when coating liquid is formed into a shape along the curved surface. A plurality of dropping ports are formed on the external surface.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a liquid application device, and more particularly to a technique for applying a liquid such as a lubricant to a curved surface such as a tooth surface of a gear.

  In an apparatus such as an image forming apparatus, a large number of gears are installed in the apparatus as power transmission means. When manufacturing these devices, it is necessary to apply a lubricant such as grease to the gear teeth. The lubricant is applied by hand-painting using a brush or the like by an operator, or by spraying or dropping by a discharge device having a tapered nozzle as shown in Patent Document 1 below.

JP 2014-61525 A

  However, when the operator manually paints the lubricant using a brush or the like, the amount of lubricant applied to the gear tooth surface varies, and the lubricant is mistakenly applied to an area where it is not necessary to apply the lubricant. The problem that there exists a possibility that it may be apply | coated, the problem that a foreign material may adhere to the tooth surface of a gear, etc. arise. Moreover, in the method of injecting or dripping the lubricant by the discharge device having the tapered nozzle as shown in the above-mentioned Patent Document 1, it is necessary to move the nozzle along the tooth surface of the gear, and complicated control is required. Is required. For this reason, a large-scale device is required to apply the lubricant to the tooth surface of the gear, and there arises a problem that the manufacturing cost of a device such as an image forming apparatus increases. In addition, since the nozzle is moved along the tooth surface of the gear, there is also a problem that it takes a long time to apply the lubricant. Such a problem occurs not only when the lubricant is applied to the tooth surface of the gear but also when a liquid such as an adhesive is applied to the curved surface.

  The present invention has been made in view of the above circumstances, and an object thereof is to enable a liquid such as a lubricant to be applied to a curved surface such as a tooth surface of a gear with a simple configuration.

  The liquid application apparatus according to the present invention is a liquid application apparatus that applies a liquid to a curved surface, a container that stores a liquid to be applied, a receiving port that receives the liquid supplied from the container, and a liquid that is received inside. A nozzle in which a dripping port for dropping liquid is formed, and an outer surface of a wall portion that is close to a curved surface to which the liquid is applied when the liquid is applied among the wall portions constituting the nozzle is the curved surface And a nozzle in which a plurality of the dripping ports are formed on the outer surface.

  According to the present invention, a liquid such as a lubricant can be applied to a curved surface such as a gear tooth surface with a simple configuration.

(A) And (B) is a figure which shows the liquid coating device concerning one Embodiment of this invention. (A) And (B) is a figure which shows the gear used as the object by which the liquid is apply | coated with the liquid application apparatus concerning one Embodiment of this invention. It is a perspective view which shows the nozzle of the liquid coating device concerning one Embodiment of this invention. (A) is a front view which shows the nozzle of the liquid coating device concerning one Embodiment of this invention, (B) is a back view which shows the nozzle of the liquid coating device concerning one Embodiment of this invention. (A) And (B) is sectional drawing which shows the nozzle of the liquid coating device concerning one Embodiment of this invention. It is a figure which shows the positional relationship of a gear and a nozzle when apply | coating a liquid. It is a figure which shows the flow of the liquid which flows through the inside of the nozzle of the liquid application device concerning one Embodiment of this invention. It is a figure which shows transition of the application quantity of the liquid by the liquid application apparatus concerning one Embodiment of this invention.

  Hereinafter, a liquid coating apparatus according to an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1A and FIG. 1B are diagrams showing a lubricant application device as an example of a liquid application device according to an embodiment of the present invention. FIGS. 2A and 2B are views showing a gear to which a lubricant is applied by the lubricant applying apparatus according to one embodiment of the present invention.

  In an image forming apparatus, it is necessary to transmit power to various members such as a roller member for conveying recording paper and a photosensitive drum used for image formation. In order to transmit power to these members, a gear transmission mechanism in which a large number of gears are combined as power transmission means is installed in the image forming apparatus. In the example shown in FIG. 2A, the gear transmission mechanism 100 is configured such that a plurality of gears 120A to 120G mesh with other gears on a flat plate gear holding member 101. When manufacturing the gear transmission mechanism 100, it is necessary to apply a lubricant such as grease to the tooth surfaces of the gears 120A to 120G. The lubricant application device 1 is a device that applies a lubricant to the tooth surfaces of the gears 120A to 120G. In the following, the gears 120A to 120G will be described as the gear 120 by omitting “A”, “B”, and the like unless otherwise specifically described.

  As shown in FIG. 2B, the gear 120 includes a tooth part 121 having a tooth surface 122 on which a plurality of teeth are formed, and a shaft part 123 that inputs or outputs a rotational force to the tooth part 121. Yes. In addition, in order to avoid that drawing becomes complicated, the tooth | gear formed in the tooth surface 122 is not drawn.

  Lubricant is not applied to the entire surface of the tooth surface 122 but is applied to a quarter or more region of the tooth surface 122. In the example shown in FIG. 2 (B), it is applied to the region of about one third of the tooth surface 122 (region A surrounded by a dotted line in the figure). Thereafter, the gear 120 rotates while meshing with other gears, so that the lubricant spreads over the entire tooth surface 122. The range in which the lubricant is applied is determined by the size of the gear to which the lubricant is applied, the size of another gear that meshes with the gear, and the like.

  As shown in FIGS. 1A and 1B, the lubricant application device 1 includes a work table 10, a pedestal 20 provided above the work table 10 (in the plus Z direction in the figure), and a pedestal 20 Is provided with a dropping portion 30 for dropping the lubricant, and a lubricant container 40 for containing the lubricant.

  The work table 10 is a flat plate member on which a gear 120 to be coated with a lubricant is placed.

  The gantry 20 is spanned between a pair of stands 21 arranged in parallel along the longitudinal direction (Y direction) of the work table 10 and the pair of stands 21, and the short direction (X direction) of the work table 10. And a support member 22 extending to the front. The stand 21 can be moved in the longitudinal direction (Y direction) of the work table 10 by a drive mechanism (not shown). The support member 22 is movable in the vertical direction (Z direction) along a rail 23 formed on the stand 21 by a drive mechanism (not shown). The dropping unit 30 supported by the support member 22 is movable in the short direction (X direction) of the work table 10 along the support member 22 by a drive mechanism (not shown). The drive mechanism operates based on a control signal output from a control device (not shown). As a result, the dropping unit 30 can move to a desired position in the three-dimensional direction (X direction, Y direction, Z direction) above the work table 10 to drop the lubricant to the desired position. .

  In addition, you may make it the structure which can move the work table 10 in which the gear 120 is mounted in a plane direction (X direction, Y direction). In this case, the dropping unit 30 can drop the lubricant at a desired position only by moving in the vertical direction (Z direction).

  The lubricant container 40 serves as a dispenser for storing the lubricant therein and discharging the stored lubricant. The lubricant container 40 discharges a fixed amount of lubricant at a designated timing based on a control signal output from a control device (not shown). The discharged lubricant passes through the pipe 41 connected to the lubricant container 40 and is supplied to the dropping unit 30.

  The dripping unit 30 includes a main body 31 and a nozzle 32 provided below the main body 31 (minus Z direction).

  The main body 31 is connected to a pipe 41 extending from the lubricant container 40, and has a space for storing the lubricant supplied from the lubricant container 40 therein. Further, the main body 31 houses a drive mechanism that moves the dropping unit 30 in the short direction (X direction) of the work table 10 along the support member 22. An opening is formed in the lower surface of the main body 31, and the lubricant accumulated inside is delivered to the nozzle 32 through the opening.

  The nozzle 32 is a member that is attached to the opening of the main body 31 and drops the lubricant delivered from the main body 31. Below, the detailed structure of the nozzle 32 is demonstrated using FIGS.

  FIG. 3 is a perspective view showing the nozzle 32, FIG. 4A is a front view showing the nozzle 32, and FIG. 4B is a back view showing the nozzle 32. As shown in these drawings, the nozzle 32 includes a body 322 having a hollow circular arc column shape. A cylindrical receiving port 321 for receiving the lubricant supplied from the lubricant container 40 via the main body 31 is formed on the upper surface of the body 322. A slide piece 3211 is formed on the outer peripheral surface of the receiving port 321. On the other hand, a groove (not shown) into which the slide piece 3211 is fitted is formed in an opening provided on the lower surface of the main body 31. The nozzle 32 is fixed to the main body portion 31 by fitting the slide piece 3211 into the groove. Alternatively, a male or female luer lock portion may be formed at the receiving port 321 and the nozzle 32 may be fixed to the main body portion 31 by a luer lock structure. Alternatively, a multiple screw shape may be formed in the receiving port 321, and the nozzle 32 may be fixed to the main body 31 by the multiple screw shape.

  The body 322 has a hollow arc column shape by two arc-shaped wall portions 322A and 322B. Further, the body 322 is formed so that its thickness decreases as it moves away from the receiving port 321, and has a tapered shape as it moves away from the receiving port 321. Of the arcuate wall portions 322A and 322B, the wall portion 322A located inside is shaped to follow the tooth surface 122 of the gear 120 to which the lubricant is applied. The circumferential length of the wall portion 322A is set to be substantially the same as or longer than the length of the region A (see FIG. 2B) where the lubricant is applied.

  FIG. 6 is a diagram showing the positional relationship between the gear 120 and the nozzle 32 when applying the lubricant. As shown in the figure, the dropping portion 30 is moved by the drive mechanism described above, and the lubricant is dropped from the lubricant container 40 in a state where the wall portion 322A of the nozzle 32 and the tooth surface 122 of the gear 120 are close to each other. 30 and the lubricant is applied. The interval between the wall portion 322A of the nozzle 32 and the tooth surface 122 of the gear 120 is preferably 1 mm or less.

  A plurality of dropping ports 323A to 323O and 324A to 324O are formed in the arc-shaped wall portion 322A constituting the body 322. The dripping ports 324A to 324O are dripping ports arranged in a line at equal intervals along the outer surface of the wall portion 322A at the first position in the height direction of the wall portion 322A. On the other hand, the dripping ports 323A to 323O are arranged in a line at equal intervals along the outer surface of the wall portion 322A at a second position that is further away from the receiving port 321 in the height direction than the first position. It is a dripping port.

The dripping ports 323A to 323O and 324A to 3240 each have a circular opening, but the sizes of the openings are different from each other. First, the dropping ports 324A to 324O arranged in parallel at the first position are formed smaller in size than the plurality of dropping ports 323A to 323O arranged in parallel at the second position. In other words, the size of the dripping port decreases with increasing distance from the receiving port 321 in the height direction.
In addition, the sizes of the dripping ports 323A to 323O and 324A to 3240 are formed to be smaller as they approach the circumferential end in the body 322. However, the dropping ports 323F, 323G, 323I, 323J, and 324F, 324G, 324I, 324J located at predetermined positions are not formed so small that they approach the circumferential end in the body 322, It is formed smaller than the size of the other dripping port.

  Since the sizes of the openings of the dropping ports 323A to 323O and 324A to 3240 are determined as described above, 323H> 323E, 323K> 323F, 323G, 323I, 323J> 323D, 323L> 323C, 323M> 323B, 323N> 323A, 323O. Further, when the dropping ports 324A to 324O are arranged in the descending order of size, 324H> 324E, 324K> 324F, 324G, 324I, 324J> 324D, 324L> 324C, 324M> 324B, 324N> 324A, 324O. The effect obtained by making the dropping openings 323A to 323O and 324A to 3240 have such opening sizes will be described later.

  FIGS. 5A and 5B are cross-sectional views showing the nozzle 32. As shown in these drawings, a regulating member 325 is provided in the body 322 of the nozzle 32 to restrict the flow of the lubricant received from the receiving port 321 toward the downstream in the axial direction.

  The restricting member 325 includes three members: a first member 3251, a second member 3252, and a third member 3253. The first member 3251 is a columnar member located on the downstream side in the axial direction of the receiving port 321. The second member 3252 is a member that is positioned closer to one end in the circumferential direction in the body 322 than the first member 3251 and has an inclined shape that inclines toward the one end. The second member 3252 plays a role of guiding the lubricant regulated by the first member 3251 to one end portion in the circumferential direction in the body 322 by the inclined shape. The third member 3253 is a member that is located closer to the other end in the circumferential direction in the body 322 than the first member 3251 and has an inclined shape that inclines toward the other end. The third member 3253 plays a role of guiding the lubricant regulated by the first member 3251 to the other end portion in the circumferential direction in the body 322 by the inclined shape.

  The flow of the lubricant flowing in the nozzle 32 having the above configuration will be described with reference to FIG. The lubricant supplied from the lubricant container 40 via the main body 31 flows downward in the receiving port 321 (arrow F1 in the figure). Thereafter, the lubricant hits the first member 3251 (arrow F2) and flows toward one end side in the circumferential direction in the body 322 (arrow F3) and flows toward the other end side in the circumferential direction in the body 322 ( Divided into an arrow F7). The flow (arrow F3) toward the one end in the circumferential direction in the body 322 is guided by the inclined shape of the second member 3252 (arrow F4) and reaches one end in the circumferential direction in the body 322 (arrow F5). ). The lubricant that has reached one end in the circumferential direction in the body 322 is dripped out of the nozzle 32 from dripping ports 323A and 324A provided in one end in the circumferential direction in the body 322. The lubricant that has not been dropped from the dripping ports 323A and 324A flows toward the center in the circumferential direction in the body 322 (arrow F6). In the course of this flow, the lubricant is supplied in order from the dropping port provided on one end side in the circumferential direction in the body 322, that is, the dropping ports 323B and 324B, the dropping ports 323C and 324C, the dropping ports 323D and 324D. ··· Dropped out of the nozzle 32 in order.

  Similarly, the flow toward the other end in the circumferential direction in the body 322 (arrow F7) is guided by the inclined shape of the third member 3253 (arrow F8), and the other end in the circumferential direction in the body 322. (Arrow F9). The lubricant that has reached the other end in the circumferential direction in the body 322 is dripped out of the nozzle 32 from dripping ports 323O and 324O provided in the other end in the circumferential direction in the body 322. The lubricant that has not been dropped from the dropping ports 323O and 324O flows toward the center in the circumferential direction in the body 322 (arrow F10). In the course of this flow, the lubricant is sequentially supplied from the dropping port provided on the other end side in the circumferential direction in the body 322, that is, the dropping ports 323N and 324N, the dropping ports 323M and 324M, the dropping ports 323L and 324L. .. Are dropped from the nozzle 32 in order.

  As described above, the sizes of the dropping ports 323 </ b> A to 323 </ b> O and 324 </ b> A to 3240 are formed so as to be closer to the circumferential end in the body 322. That is, the size of the dripping port (dropping port 323A, 324A, 323O, 324O, etc.) provided at the circumferential end of the body 322 that the lubricant supplied from the lubricant container 40 is first guided by the regulating member 325 first faces. The dripping port (dropping port 323H, 324H, etc.) provided at the center in the circumferential direction in the body 322 to which the lubricant supplied from the lubricant container 40 lasts is large. Thereby, the same amount of lubricant can be dropped from each dropping port.

  In addition, as described above, the dropping ports 324A to 324O arranged in parallel at the first position are smaller in size than the plurality of dropping ports 323A to 323O arranged in parallel to the second position. Has been. Lubricant that has not been dripped from the dripping port tends to stay below the body 322. In this regard, by determining the size of the dropping port as described above, the lubricant staying below in the body 322 can be dropped outside the body 322, and the lubricant is less likely to stay in the body 322. Can do.

  Further, as described above, the regulating member 325 for regulating the flow of the lubricant received from the receiving port 321 toward the downstream in the axial direction is provided in the body 322 of the nozzle 32. When this regulating member 325 is not provided inside the body 322, the lubricant received from the receiving port 321 goes downward as it is. In this case, a large amount of lubricant is dripped from the dripping port provided at the circumferential center in the body 322, and only a small amount of lubricant is dripped from the dripping port provided at the circumferential end in the body 322. Occur. In this regard, in the lubricant application device 1, the restriction member 325 is provided inside the body 322 so that the flow of the lubricant in the body 322 is adjusted so that the same amount of lubricant is dropped from each dropping port. I have to.

  In addition, as described above, the regulating member 325 is divided into three members: a first member 3251, a second member 3252, and a third member 3253. For this reason, a part of the flow (arrow F3) toward the one end in the circumferential direction in the body 322 passes through the passage formed between the first member 3251 and the second member 3252 (arrow). F11) and flows downward in the passage (arrow F12). In addition, a part of the flow (arrow F7) toward the other end side in the circumferential direction in the body 322 passes through a passage formed between the first member 3251 and the third member 3253 (arrow). F13) and flows downward in the passage (arrow F14).

  In the region below the regulating member 325, the lubricant hardly flows and the lubricant is easily retained. In this respect, in the lubricant application device 1, the regulating member 325 is not made as one member, but is divided into three members and a passage through which the lubricant passes is formed between the members, thereby regulating member 325. It is difficult for the lubricant to stay in the region below.

  The position below the passage formed between the first member 3251 and the second member 3253 and the position below the passage formed between the first member 3251 and the third member 3253 are already set. This is a predetermined position. Since the lubricant that has passed through the passage flows in this position, more lubricant flows into the position than in the surrounding positions. For this reason, in the lubricant application device 1, the dropping ports 323F, 323G, 323I, 323J, and 324F, 324G, 324I, 324J located at this position are formed smaller as they approach the circumferential end in the body 322. Instead, the same amount of lubricant is dropped from each dropping port by forming it smaller than the size of the other dropping ports.

  In addition, as described above, the body 322 is formed such that the length in the radial direction decreases as the distance from the reception port 321 increases, and the shape decreases toward the distance from the reception port 321. In this way, while widening the region near the receiving port 321 for receiving the lubricant, the width is narrowed away from the receiving port 321, thereby improving the flow of the lubricant flowing in the body 322 and smoothing from each dropping port. Lubricant is dripped onto the surface.

  FIG. 8 is a diagram showing the transition of the amount of lubricant applied when the lubricant is applied to the tooth surface 122 of the gear 120 using the lubricant application device 1 described above. As shown in the figure, when the lubricant is applied to the tooth surface 122 of the gear 120 using the above-described lubricant application device 1, a substantially uniform amount of lubricant can be applied each time.

  Here, in a general method for applying a lubricant, the lubricant is applied by hand-painting using a brush or the like by an operator, or by spraying or dropping with a discharge device having a tapered nozzle. However, when the operator manually paints the lubricant using a brush or the like, the amount of lubricant applied to the gear tooth surface varies, and the lubricant is mistakenly applied to an area where it is not necessary to apply the lubricant. The problem that there exists a possibility that it may be apply | coated, the problem that a foreign material may adhere to the tooth surface of a gear, etc. arise. Moreover, in the method of injecting or dripping the lubricant by the discharge device having the tapered nozzle, it is necessary to move the nozzle along the tooth surface of the gear, and complicated control is required. For this reason, a large-scale device is required to apply the lubricant to the tooth surface of the gear, and there arises a problem that the manufacturing cost of a device such as an image forming apparatus increases. In addition, since the nozzle is moved along the tooth surface of the gear, there is also a problem that it takes a long time to apply the lubricant.

  In this regard, the lubricant application device 1 according to an embodiment of the present invention includes a nozzle 32 in which a plurality of dripping ports are formed on an arc-shaped wall portion 322A that constitutes a body 322 having a hollow arc-columnar shape. I have. Thus, the lubricant is supplied to the tooth surface 122 of the gear 120 by supplying the lubricant from the lubricant container 40 to the dropping portion 30 in a state where the wall portion 322A of the nozzle 32 and the tooth surface 122 of the gear 120 are in contact with each other. Since it can be applied, it is not necessary to move the nozzle 32 along the tooth surface 122 of the gear 120, and the time required for applying the lubricant can be shortened. Furthermore, since the application amount of the lubricant applied to the tooth surface 122 of the gear 120 can be controlled, unnecessary application is not required, and the cost for the lubricant can be reduced.

  Further, in a general method of applying a lubricant, a lubricant is applied to a tooth surface of a gear before being combined with another gear, and then combined with another gear. In this regard, the lubricant application device 1 according to the embodiment of the present invention is in a state where the gear 120 is combined with other gears, that is, a plurality of the plate-like gear holding members 101 as shown in FIG. The lubricant can be applied to the tooth surfaces of the gears 120A to 120G in a state where the gears 120A to 120G are installed so as to mesh with the other gears.

  The present invention is not limited to the configuration of the above embodiment, and various modifications can be made.

  The case where the lubricant is applied to the tooth surface of the gear provided in the image forming apparatus has been described above, but the present invention is not necessarily limited to this case. The lubricant can be applied to a gear provided in an apparatus other than the image forming apparatus using the lubricant applying apparatus 1.

  Further, the present invention is not limited to the one that applies a lubricant, and the above-described coating apparatus can be applied even when a liquid such as an adhesive is applied.

  Furthermore, the present invention is not limited to the application of a liquid to the tooth surface of the gear, and the above-described application apparatus can also be applied when applying a liquid to a curved surface. In this case, of the wall surfaces constituting the nozzle, the outer surface of the wall portion close to the curved surface that is the liquid application target when applying the liquid is formed into a shape along the curved surface. Then, a plurality of dropping ports are formed on the outer surface having a shape along the curved surface. By comprising in this way, the effect similar to the case where a lubrication agent is apply | coated to the gear tooth surface shown to said embodiment is acquired.

  Moreover, although the case where the one nozzle 32 was provided in the main-body part 31 was demonstrated above, this invention is not necessarily limited to this case. A plurality of nozzles 32 are provided in the main body 31 and a branch path for branching the lubricant supplied from the lubricant container 40 is formed in the main body 31 so that the branched lubricant is received in each of the plurality of nozzles 32. You may let them. Thereby, the lubricant can be applied to the plurality of gears 120 at a time.

  Further, in the above, two rows of dripping ports composed of dripping ports 323A to 323O and dripping ports 324A to 324O arranged in parallel at equal intervals along the outer surface of the wall 322A at different positions in the height direction. The case where it was provided was explained. However, the present invention is not limited to this case. When the tooth width of the gear 120 to be coated with the lubricant is long, three or more rows of dripping openings may be provided, or when the gear width of the gear 120 to be coated with the lubricant is short. Only one row of dripping ports may be provided.

DESCRIPTION OF SYMBOLS 1 Lubricant coating apparatus 10 Work table 20 Base 30 Drop part 31 Main body part 32 Nozzle 40 Lubricant container 41 Pipe 100 Gear transmission mechanism 101 Gear holding member 120 Gear 121 Tooth part 122 Tooth surface 321 Receptacle 322 Body 323, 324 Drop port

Claims (11)

A liquid application device for applying a liquid to a curved surface,
A container for storing the liquid to be applied;
A nozzle having a receiving port for receiving the liquid supplied from the container and a dropping port for dropping the liquid received in the inside, wherein the liquid is applied among the walls constituting the nozzle. And a nozzle in which an outer surface of the wall portion close to the curved surface to be coated with the liquid has a shape along the curved surface, and a plurality of the dripping ports are formed on the outer surface.   2. The liquid according to claim 1, wherein the plurality of dripping ports include first dripping ports arranged in a line along an outer surface of the wall portion at a first position in a height direction of the wall portion. Coating device.   In addition to the first dripping port, the plurality of dripping ports are arranged in a row along the outer surface of the wall portion at a position different from the first position in the height direction. The liquid coating apparatus according to claim 2, comprising at least one or more rows of mouths.   The liquid application device according to claim 3, wherein the plurality of dropping ports are formed such that the size thereof decreases as the distance from the receiving port increases in the height direction.   5. The restriction member that restricts the flow of the liquid received from the receiving port toward the downstream in the axial direction is provided inside the nozzle located downstream in the axial direction of the receiving port. The liquid application apparatus according to any one of the above. The regulating member has an inclined shape that guides the liquid that is received from the receiving port and travels downstream in the axial direction to an end portion in a direction orthogonal to the axial direction inside the nozzle,
The liquid application apparatus according to claim 5, wherein the size of the plurality of dripping ports is formed smaller toward an end portion in a direction orthogonal to the axial direction. The restriction member is a first member located downstream in the axial direction of the receiving port, a second member located on one end side in a direction perpendicular to the axial direction from the first member, and having the inclined shape, and It is located on the other end side in the direction orthogonal to the axial direction from the first member, and is divided into third members having the inclined shape,
The liquid application apparatus according to claim 6, wherein a passage through which the liquid passes is formed between the first member and the second member and between the first member and the third member.   The liquid application apparatus according to claim 7, wherein a size of the dripping port located downstream of the liquid passing through the passage is formed smaller than a size of the other dripping port.   9. The liquid application apparatus according to claim 1, wherein the nozzle is formed so that a length in a thickness direction decreases as the distance from the receiving port increases. A plurality of the nozzles;
10. The liquid application apparatus according to claim 1, wherein the liquid supplied from the container is branched, and the branched liquid is received by each of the plurality of nozzles. The curved surface to be applied with the liquid is a gear tooth surface,
The liquid is a lubricant;
The nozzle has a hollow arc column shape, and an outer surface of the inner wall portion of the two arc wall portions constituting the arc column shape has a shape along the curved surface. The liquid coating apparatus according to claim 1, wherein