JP7754030B2 - injection device - Google Patents

Description

The present invention relates to an injection device that supplies fluids such as grease to a specified location within a clamped space.

Patent Document 1 describes an injection device structure that integrally holds an injection unit and an imaging unit. Specifically, Patent Document 1 discloses a structure that integrally holds a grease supply pipe (injection unit) and an endoscope (imaging unit) by inserting them into two through-holes formed in a jig.

Japanese Patent Application Laid-Open No. 2020-37949

However, in Patent Document 1, when fixing the injection unit and imaging unit with a jig, it is necessary to insert the injection unit and imaging unit into the through-holes in the jig, which is a time-consuming process. Furthermore, if, for example, the tip of the injection unit is molded into a flat shape or the connection part of the injection unit is reinforced and becomes larger than the through-hole, the attachment and detachment process becomes difficult. Therefore, there is a need for a structure that can simplify the process of holding the injection unit and imaging unit.

The present invention was made against the background of the above circumstances, and its purpose is to provide an ejection device that can easily hold the ejection unit and the imaging unit.

The gist of the first invention is (a) an injection device having an insertion portion that is held by an operator and inserted toward a corresponding portion within a clamped space, (b) the insertion portion having (c) a tubular injection portion having a fluid injection port at its tip for injecting grease , (d) an imaging portion for capturing an image including the tip of the injection portion and its surroundings, and (e) a holding member that is inserted from the side relative to the longitudinal direction of the injection portion and the imaging portion and holds the injection portion and the imaging portion in a parallel arrangement, and (f) a first elastic member that is interposed in a compressed state between the injection portion and the holding member, and a second elastic member that is interposed in a compressed state between the imaging portion and the holding member.

The gist of the second invention is that, in the first invention, the holding member is a pair of members each having a U-shaped cross section connected in a parallel, adjacent state.

The gist of the third invention is that, in the first invention, the retaining member is composed of a first arc-shaped member having an arc-shaped cross section and a second arc-shaped member having an arc-shaped cross section, and the first arc-shaped member and the second arc-shaped member are arranged in parallel, with their circumferential ends connected to each other.

The gist of the fourth invention is that, in the first invention, the retaining member is an annular member having an O-shaped cross section and a notch formed in part of its circumference.

The gist of the fifth invention is that, in any one of the first to fourth inventions, the first elastic member is attached to the ejection unit, and the second elastic member is attached to the imaging unit.

The gist of the sixth invention is that, in the fifth invention, the first elastic member is configured by wrapping elastic tape around the outer peripheral surface of the ejection section, and the second elastic member is configured by wrapping elastic tape around the outer peripheral surface of the imaging section.

The gist of the seventh invention is that in any one of the first to fourth inventions, the first elastic member and the second elastic member are each attached to the holding member.

According to the first aspect of the present invention, the holding member is inserted laterally in the longitudinal direction of the ejection unit and the imaging unit, making it easy to hold the ejection unit and the imaging unit in a parallel arrangement. Furthermore, for example, because a first elastic member is inserted in a compressed state between the ejection unit and the holding member, the ejection unit can be properly held by the elastic force of the first elastic member even if the diameters of the ejection units differ. Furthermore, for example, because a second elastic member is inserted in a compressed state between the imaging unit and the holding member, the imaging units can be properly held by the elastic force of the second elastic member even if the diameters of the imaging units differ.

According to the second aspect of the invention, the holding member is a pair of U-shaped cross-section members connected in parallel and adjacent to each other, so when attaching the holding member, the emission unit and the imaging unit can be attached separately. In relation to this, when attaching the holding member to either the emission unit or the imaging unit, the other does not interfere, making the work easier.

According to the third aspect of the present invention, the retaining member is constructed by connecting the circumferential end of the first arc-shaped member and the circumferential end of the second arc-shaped member to each other, which enables the retaining member to be molded as a single unit, thereby reducing the manufacturing cost of the retaining member.

According to the fourth aspect of the present invention, the retaining member is an annular member with an O-shaped cross section and a notch formed in part of its circumference, which makes it possible to form the retaining member as a single piece, thereby reducing the manufacturing cost of the retaining member.

According to the fifth aspect of the invention, the first elastic member is attached to the ejection unit and the second elastic member is attached to the imaging unit, which makes it easier to attach the first elastic member and the second elastic member.

According to the sixth aspect of the present invention, the first elastic member is formed by wrapping elastic tape around the outer peripheral surface of the ejection section, making it easy to attach the first elastic member to the ejection section. Furthermore, the size of the first elastic member can be easily adjusted by changing the number of turns of the tape. Furthermore, the boundary line formed by the tape wrapped around the ejection section can be used to position the holding member. Furthermore, the second elastic member is formed by wrapping elastic tape around the outer peripheral surface of the imaging section, making it easy to attach the second elastic member to the imaging section. Furthermore, the size of the second elastic member can be easily adjusted by changing the number of turns of the tape. Furthermore, the boundary line formed by the tape wrapped around the imaging section can be used to position the holding member.

According to the seventh aspect of the present invention, the first elastic member and the second elastic member are attached to the holding member, respectively. Therefore, the first elastic member and the second elastic member are not provided in the ejection unit and the imaging unit. This makes it easier to use the ejection unit and the imaging unit for other purposes, improving versatility.

1 is an overall view of an injection device to which the present invention is applied; FIG. 2 is an enlarged view of the periphery of the tip of the injection pipe and the tip of the scope in FIG. 1 . FIG. 3 is an external view of the holding member of FIG. 2 . This is a view from inside the case showing the injection pipe and scope inserted into the area inside the case that requires grease. 5 is a view of the state of FIG. 4 as seen from the outside of the case. 10A and 10B are diagrams showing the shape of a holding member according to another embodiment of the present invention. 10A and 10B are diagrams showing the shape of a holding member according to still another embodiment of the present invention. 10A and 10B are diagrams showing the shape of a holding member according to still another embodiment of the present invention.

Embodiments of the present invention will now be described in detail with reference to the drawings. Please note that the drawings in the following embodiments have been simplified or modified as appropriate, and the dimensional proportions and shapes of each part are not necessarily drawn accurately.

Figure 1 is an overall view of an injection device 10 to which the present invention is applied. The injection device 10 includes an injection mechanism 12 and an imaging device 14.

The injection mechanism 12 includes an injector 16, a flexible pipe 18 connected at one end to the injector 16, and a tubular injection pipe 22 connected to the other end of the flexible pipe 18 via a connection reinforcement part 20.

The injector 16 includes a cylindrical container 24, a cylinder portion 26 from which the grease filled in the container 24 is injected, an extrusion portion 28 for moving a piston (not shown) built into the cylinder portion 26, and a spring 30 for biasing the extrusion portion 28 to a non-grease injection position.

When the extrusion portion 28 is pressed by an operator, the piston inside the cylinder portion 26 is pushed out against the biasing force of the spring 30, and grease is injected from the cylinder portion 26 toward the flexible pipe 18. When the grease is injected toward the flexible pipe 18, the grease filled in the flexible pipe 18 and the injection pipe 22 moves toward the tip 22a of the injection pipe 22, and the grease is injected from the tip 22a of the injection pipe 22. In addition, the tip 22a of the injection pipe 22 is formed with a fluid injection port 31 having a rectangular cross section.

The imaging device 14 includes a monitor 32 and a scope 34 connected to the monitor 32. An image captured by the tip 35 of the scope 34 is displayed on the display 32a of the monitor 32. The imaging device 14 is used to check the amount of grease remaining in the area where grease is to be supplied, and to confirm whether grease has been supplied to the appropriate area. As shown in FIG. 1, the tip 22a of the injection pipe 22 protrudes further from the holding member 36 (described below) toward the tip side than the tip 35 of the scope 34. Therefore, the scope 34 captures an image that includes the tip 22a of the injection pipe 22 and its surroundings.

Next, we will explain the holding member 36 that holds the injection pipe 22 and the scope 34 in a parallel arrangement. Figure 2 is an enlarged view of the area around the tip 22a of the injection pipe 22 and the tip 35 of the scope 34 in Figure 1.

As shown in Figure 2, the injection pipe 22 and the scope 34 are held in a parallel arrangement by a holding member 36. The holding member 36 is made of an elastic material such as resin or spring steel.

Figure 3 is an external view of the holding member 36. The upper part of Figure 3 corresponds to the state shown in Figure 2, and the lower part of Figure 3 corresponds to a view of the holding member 36 in Figure 2 as seen from the direction of arrow A. The lower part of Figure 3 also corresponds to a cross-sectional view of the holding member 36 in Figure 2 cut along a plane perpendicular to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34. Note that the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34 corresponds to the direction in which the injection pipe 22 and the scope 34 extend.

As shown in FIG. 3 , the holding member 36 is composed of a first U-shaped member 36a and a second U-shaped member 36b, each of which has a U-shaped cross section. The pair of first U-shaped member 36a and second U-shaped member 36b are both recessed in a direction that narrows the opening near the opening. The holding member 36 is configured such that the opening of the first U-shaped member 36a and the opening of the second U-shaped member 36b are aligned in parallel, facing the same direction, and the contact portions of adjacent first U-shaped members 36a and second U-shaped members 36b are connected. Furthermore, when holding the injection pipe 22 and the scope 34, the holding member 36 has a predetermined width W in the longitudinal direction of the injection pipe 22 and the scope 34. The first U-shaped member 36a and the second U-shaped member 36b correspond to the pair of members with a U-shaped cross section of the present invention.

When attaching the holding member 36 to the injection pipe 22 and the scope 34, the injection pipe 22 is inserted from the side relative to the longitudinal direction (linear direction) of the injection pipe 22 so that it passes through the opening of the first U-shaped member 36a of the holding member 36. Similarly, the scope 34 is inserted from the side relative to the longitudinal direction (linear direction) of the scope 34 so that it passes through the opening of the second U-shaped member 36b of the holding member 36.

Returning to Figure 2, a first elastic member 38 is interposed between the injection pipe 22 and the holding member 36. The first elastic member 38 is composed of elastic tape 39, which is attached to the injection pipe 22 by wrapping the tape 39 around the outer surface of the injection pipe 22. As a result, the portion of the injection pipe 22 to which the first elastic member 38 is attached is larger in the radial direction of the injection pipe 22 than the portion of the injection pipe 22 to which the first elastic member 38 is not attached. Specifically, the tape 39 constituting the first elastic member 38 is wrapped around the injection pipe 22 until the outer diameter D1 of the injection pipe 22 at the portion to which the first elastic member 38 is attached becomes larger than the inner diameter d1 of the first U-shaped member 36a. For example, the number of wraps of the tape 39 around the injection pipe 22 is adjusted so that a predetermined amount of interference is formed between the first elastic member 38 and the first U-shaped member 36a.

The position at which the first elastic member 38 is attached is set at a position of length L1 based on the tip (fluid injection port 31) of the tip portion 22a of the injection pipe 22. Length L1 is determined in advance through experimentation or design. The first U-shaped member 36a of the holding member 36 is attached to the injection pipe 22 using the position of the first elastic member 38 as a marker. For example, as shown in FIG. 2, the first U-shaped member 36a is attached at a position where the boundary line 42 between the tape 39 wrapped around the injection pipe 22 and the injection pipe 22 is aligned with the end face 44 of the first U-shaped member 36a. In this way, the first elastic member 38 can be used to position the first U-shaped member 36a.

A second elastic member 40 is also interposed between the scope 34 and the holding member 36. The second elastic member 40 is made of elastic tape 41, and is attached to the scope 34 by wrapping the tape 41 around the outer periphery of the scope 34. As a result, the portion of the scope 34 to which the second elastic member 40 is attached is larger in the radial direction of the scope 34 than the portion of the scope 34 to which the second elastic member 40 is not attached. More specifically, the tape 41 constituting the second elastic member 40 is wrapped around the scope 34 until the outer diameter D2 of the scope 34 at the portion to which the second elastic member 40 is attached becomes larger than the inner diameter d2 of the second U-shaped member 36b. For example, the number of wraps of tape 41 around the scope 34 is adjusted so that a predetermined amount of interference is formed between the second elastic member 40 and the second U-shaped member 36b.

The position at which the second elastic member 40 is attached is set at a position of length L2 based on the tip of the distal end 35 of the scope 34. Length L2 is determined in advance experimentally or through design. The second U-shaped member 36b of the holding member 36 is attached to the scope 34 using the position of the second elastic member 40 as a marker. For example, as shown in Figure 2, the second U-shaped member 36b is attached at a position where the boundary line 46 between the tape 41 wrapped around the scope 34 and the scope 34 and the end face 48 of the second U-shaped member 36b are aligned in a straight line. In this way, the second elastic member 40 can be used to position the second U-shaped member 36b.

Next, we will explain one mode of use of the injection device 10 configured as described above. Figure 4 is a view from the inside of the case 50 showing the injection pipe 22 and scope 34 inserted into the case 50 to supply grease to areas within the case 50 that require it. Figure 5 is a view of Figure 4 from the outside of the case 50. The modes shown in Figures 4 and 5 illustrate a mode in which grease is injected between the release bearing 52 of a dry clutch that connects and disconnects the manual transmission and the power source, and the release fork 54 that contacts the release bearing 52. The contact portion 60 between the release bearing 52 and the release fork 54 corresponds to the corresponding portion within the clamping space in this invention.

In Figure 4, the release bearing 52 is attached so as to be movable relative to the rotation shaft 56 in the axial direction. The release fork 54 is a longitudinally shaped member that is rotatable around a support part (not shown) as a fulcrum. The longitudinal end 54a of the release fork 54 that is housed inside the case 50 is bifurcated so as to sandwich the rotation shaft 56. In the assembled state, the end 54a of the release fork 54 housed inside the case 50 comes into contact with the release bearing 52. Note that Figure 4 shows the state in which the end 54a of the release fork 54 is separated from the release fork 54 when supplying grease.

Grease is applied to the contact area 60 between the release bearing 52 and the end 54a of the release fork 54, as they slide against each other. However, when driving on flooded roads, water or foreign matter can enter the case 50, causing the grease at the contact area 60 to leak out. This can result in poor sliding between the release bearing 52 and the release fork 54. Therefore, if the grease at the contact area 60 leaks out, grease is supplied to the contact area 60 between the release bearing 52 and the release fork 54 using the injection device 10.

As shown in Figures 4 and 5, the case 50 has a through-hole 58 formed therein for inserting the release fork 54 into the case 50. The release fork 54 passes through the through-hole 58. Furthermore, an operator holds the injection pipe 22 and the scope 34 and inserts them into the case 50 through the gap between the through-hole 58 and the release fork 54. Peripheral components (not shown in Figure 4) are housed within the case 50. In reality, the injection pipe 22 and the scope 34 reach the contact portion 60 by passing through a gap within the case 50 to avoid interfering with the peripheral components. As shown in Figure 4, the holding member 36 is also inserted into the case 50. The portions of the injection pipe 22 and the scope 34 inserted into the case 50 correspond to the insertion portion of the present invention. The portion of the injection pipe 22 inserted into the case 50 corresponds to the injection portion of the present invention. The portion of the scope 34 inserted into the case 50 corresponds to the imaging portion of the present invention.

As shown in Figure 4, when the tip 22a of the injection pipe 22 reaches the contact point 60 between the release bearing 52 and the release fork 54, the operator activates the injector 16 to inject grease from the fluid injection port 31 of the tip 22a, thereby supplying grease to the contact point 60.

To improve workability, the insertion depth of the injection pipe 22 and the scope 34 into the case 50 that allows grease to be applied to the contact portion 60 is determined experimentally or by design. For example, the insertion depth is determined in advance using the tip 22a of the injection pipe 22 as the reference (zero). By inserting the injection pipe 22 and the scope 34 into the case 50 by that insertion depth, grease can be applied to the contact portion 60. Alternatively, the insertion depth is determined in advance using the holding member 36 as the reference (zero). By inserting the injection pipe 22 and the scope 34 into the case 50 by that insertion depth, grease can be applied to the contact portion 60. For fine adjustments, the operator adjusts the position while referring to the image captured by the scope 34 and displayed on the display 32a of the monitor 32. Because the injection pipe 22 is inserted into the first U-shaped member 36a, interference with the scope 34 is prevented when fine-tuning the position of the injection pipe 22. Similarly, because the scope 34 is inserted into the second U-shaped member 36b, interference with the injection pipe 22 is prevented when fine-tuning the position of the scope 34.

Furthermore, during the transitional period in which the injection pipe 22 and the scope 34 are inserted into the case 50, the position (angle θ) of the scope 34 relative to the injection pipe 22 is determined in advance through experimentation or design to avoid interference with surrounding components within the case 50. For example, as shown in FIG. 5 , the angle θ is determined in advance, with the injection pipe 22 and the scope 34 positioned horizontally as the reference (zero). When the injection pipe 22 and the scope 34 are inserted into the case 50 through the through-hole 58 in the case 50, the scope 34 is inserted into the case 50 with the orientation rotated by the angle θ. As a result, the injection pipe 22 and the scope 34 can be positioned appropriately without interfering with surrounding components within the case 50. While it is preferable for the injection pipe 22 and the scope 34 to be horizontal from the perspective of easy viewing of the scope 34, the scope 34 can be rotated appropriately around the injection pipe 22 to avoid interference with surrounding components.

As described above, the injection pipe 22 and the scope 34 are held by the holding member 36. The holding member 36 is attached by inserting it laterally relative to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34. Specifically, the holding member 36 is attached by passing the injection pipe 22 through the opening of the first U-shaped member 36a of the holding member 36 and the scope 34 through the opening of the second U-shaped member 36b. This improves the ease of attaching the holding member 36 to the injection pipe 22 and the scope 34.

In contrast, with conventional structures, the injection pipe 22 and scope 34 were held in place by inserting them into a member (holding member) with two through holes, which required time. Furthermore, when the tip 22a of the injection pipe 22 and the connection reinforcement portion 20 are enlarged, as in this embodiment, it becomes difficult to insert the injection pipe 22 into the through-holes in conventional structures, making it difficult to attach and detach the injection pipe 22. As a result, it becomes difficult to use the injection pipe 22 for other purposes. In contrast, the holding member 36 can be easily attached and detached regardless of the dimensions of the tip 22a and the connection reinforcement portion 20, resulting in excellent workability and making it easier to use the injection pipe 22 and scope 34 for other purposes (improved versatility).

In addition, because the first elastic member 38 is interposed between the injection pipe 22 and the first U-shaped member 36a of the holding member 36, even if a gap occurs between the injection pipe 22 and the first U-shaped member 36a, the gap is filled by the first elastic member 38. By appropriately setting the compression amount of the first elastic member 38, the resistance acting between the first elastic member 38 and the first U-shaped member 36a becomes appropriate, and the holding force of the holding member 36 becomes appropriate. Furthermore, by interposing the first elastic member 38, injection pipes 22 with different diameters can be used, improving versatility.

In addition, because the second elastic member 40 is interposed between the scope 34 and the second U-shaped member 36b of the holding member 36, even if a gap occurs between the scope 34 and the second U-shaped member 36b, the gap is filled by the second elastic member 40. By appropriately setting the compression amount of the second elastic member 40, the resistance acting between the second elastic member 40 and the second U-shaped member 36b becomes appropriate, and the holding force of the holding member 36 becomes appropriate. Furthermore, by interposing the second elastic member 40, scopes 34 of different diameters can be used, improving versatility.

As described above, according to this embodiment, the holding member 36 can be inserted laterally in the longitudinal direction of the injection pipe 22 and the scope 34, allowing the injection pipe 22 and the scope 34 to be easily held side by side. Furthermore, because the first elastic member 38 is interposed between the injection pipe 22 and the holding member 36, the elastic force of the first elastic member 38 can be used to properly hold the injection pipe 22, even if the diameter of the injection pipe 22 varies. Furthermore, because the second elastic member 40 is interposed between the scope 34 and the holding member 36, the elastic force of the second elastic member 40 can be used to properly hold the scope 34, even if the diameter of the scope 34 varies.

Furthermore, according to this embodiment, the holding member 36 is a member in which the first U-shaped member 36a and the second U-shaped member 36b, each having a U-shaped cross section, are connected in a parallel, adjacent state. Therefore, when attaching the holding member 36, the injection pipe 22 and the scope 34 can be attached separately. In relation to this, when attaching the holding member 36 to one of the injection pipe 22 and the scope 34, the other does not interfere, improving workability. Furthermore, because the first elastic member 38 is attached to the injection pipe 22, the installation work of the first elastic member 38 is facilitated. Furthermore, because the second elastic member 40 is attached to the scope 34, the installation work of the second elastic member 40 is facilitated.

In addition, according to this embodiment, the first elastic member 38 is formed by wrapping elastic tape 39 around the outer circumferential surface of the injection pipe 22, making it easy to attach the first elastic member 38 to the injection pipe 22. The size of the first elastic member 38 can be easily adjusted by changing the number of turns of the tape 39. Furthermore, a boundary line 42 between the first elastic member 38 and the injection pipe 22, formed by the tape 39 wrapped around the injection pipe 22, can be used to position the holding member 36. Furthermore, the second elastic member 40 is formed by wrapping elastic tape 41 around the outer circumferential surface of the scope 34, making it easy to attach the second elastic member 40 to the scope 34. The size of the second elastic member 40 can be easily adjusted by changing the number of turns of the tape 41. Furthermore, a boundary line 46 between the second elastic member 40 and the scope 34, formed by the tape 41 wrapped around the scope 34, can be used to position the holding member 36.

Next, another embodiment of the present invention will be described. In the following description, parts that are common to the previous embodiment will be assigned the same reference numerals and will not be described again.

Figure 6 is a diagram showing the shape of a holding member 80 corresponding to another embodiment of the present invention, and shows the state in which the holding member 80 holds the injection pipe 22 and the scope 34 in a parallel arrangement. Figure 6 also corresponds to a cross-sectional view taken along a plane perpendicular to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34 in the attached state.

The holding member 80 has a cross section that is approximately ω-shaped. The holding member 80 is composed of a first arc-shaped member 80a and a second arc-shaped member 80b, each of which has an arc-shaped cross section. The arc lengths of the first arc-shaped member 80a and the second arc-shaped member 80b are at least longer than a semicircle. When the first arc-shaped member 80a and the second arc-shaped member 80b are arranged in parallel, one circumferential end of the first arc-shaped member 80a and one circumferential end of the second arc-shaped member 80b are connected to each other. The other circumferential end of the first arc-shaped member 80a and the other circumferential end of the second arc-shaped member 80b face each other, and an opening 82 is formed between these opposing ends.

As shown in FIG. 6 , the injection pipe 22 is inserted into the inner periphery of the first arc-shaped member 80a. Furthermore, the first elastic member 38 is inserted in a compressed state between the injection pipe 22 and the first arc-shaped member 80a. The scope 34 is inserted into the inner periphery of the second arc-shaped member 80b. Furthermore, the second elastic member 40 is inserted in a compressed state between the scope 34 and the second arc-shaped member 80b. By compressing the first elastic member 38 and the second elastic member 40, the injection pipe 22 and the scope 34 are held by the holding member 80.

When attaching the holding member 80 to the injection pipe 22 and the scope 34, the opening 82 of the holding member 80 is faced toward the injection pipe 22 and the scope 34, and the holding member 80 is inserted from the side relative to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34. In this way, the holding member 80 can be easily attached to the injection pipe 22 and the scope 34. Furthermore, because the holding member 80 can be molded as a single unit, manufacturing costs are reduced compared to the holding member 36 of the first embodiment described above. The above-described holding member 80 also achieves substantially the same effects as the first embodiment described above.

Figure 7 is a diagram showing the shape of a holding member 90 corresponding to yet another embodiment of the present invention, and shows the state in which the holding member 90 holds the injection pipe 22 and the scope 34 in a parallel arrangement. Figure 7 also corresponds to a cross-sectional view taken along a plane perpendicular to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34 in the attached state.

The holding member 90 is formed in an annular shape with an O-shaped cross section. A notch 92 is formed in part of the circumference of the holding member 90. As shown in FIG. 7 , the injection pipe 22 and the scope 34 are held side by side on the inner periphery of the holding member 90. A first elastic member 38 is inserted in a compressed state between the injection pipe 22 and the holding member 90. A second elastic member 40 is inserted in a compressed state between the scope 34 and the holding member 90. The injection pipe 22 and the scope 34 are held by the holding member 90 as the first elastic member 38 and the second elastic member 40 are compressed.

When attaching the holding member 90 to the injection pipe 22 and the scope 34, the injection pipe 22 and the scope 34 are inserted from the side relative to the longitudinal direction (linear direction) of the injection pipe 22 and the scope 34 so that they pass through the notch 92 in the holding member 90. In this way, the holding member 90 can be easily attached to the injection pipe 22 and the scope 34. Furthermore, because the holding member 90 can be molded as a single unit, manufacturing costs are reduced compared to the holding member 36 of the first embodiment described above. The holding member 90 described above also achieves substantially the same effects as the first embodiment described above.

Figure 8 is a diagram showing the shape of a retaining member 100 corresponding to yet another embodiment of the present invention. When comparing the retaining member 100 with the retaining member 36 of embodiment 1, while the basic shape remains the same, it differs in that a first elastic member 102 and a second elastic member 104 are attached to the retaining member 100.

The holding member 100 is composed of a first U-shaped member 100a and a second U-shaped member 100b, each of which is formed in a U-shape. Both the first U-shaped member 100a and the second U-shaped member 100b are recessed in the vicinity of the opening in a direction that narrows the opening.

A first elastic member 102 made of rubber or the like is attached by adhesive or the like to the inner circumferential surface of the first U-shaped member 100a. The first elastic member 102 is formed in an arc shape along the inner circumferential surface of the first U-shaped member 100a. A second elastic member 104 made of rubber or the like is attached by adhesive or the like to the inner circumferential surface of the second U-shaped member 100b. The second elastic member 104 is formed in an arc shape along the inner circumferential surface of the second U-shaped member 100b. In this way, even when the first elastic member 102 and the second elastic member 104 are provided on the holding member 100, the same effects as those of the above-mentioned embodiment can be obtained. Furthermore, when the holding member 100 is provided with the first elastic member 102 and the second elastic member 104, the injection pipe 22 and the scope 34 are not provided with the first elastic member 102 and the second elastic member 104, making it easier to use the injection pipe 22 and the scope 34 for other purposes, improving versatility.

The above describes in detail an embodiment of the present invention based on the drawings, but the present invention can also be applied in other aspects.

For example, in the above-described embodiment, the injection device 10 was used to supply grease to the contact area 60 between the release bearing 52 and release fork 54 that make up a dry clutch in a manual transmission, but the present invention is not limited to this. For example, the present invention can also be applied to predetermined greasing points in parking brakes, greasing points in wheel brakes, greasing points inside pulleys, greasing points in rotating parts, and greasing points in sliding parts. Essentially, the present invention can be applied as appropriate to any part that requires the supply of grease within a pinched space. Furthermore, the present invention is not limited to vehicles, but can be applied as appropriate to any industrial machinery that has a part that requires the supply of grease.

In addition, in the above-described embodiment, the first elastic member 38 is interposed between the injection pipe 22 and the first U-shaped member 36a, and the second elastic member 40 is interposed between the scope 34 and the second U-shaped member 36b. However, it is also possible to use only one of the first elastic member 38 and the second elastic member 40. That is, the first elastic member 38 may be interposed between the injection pipe 22 and the first U-shaped member 36a, while the scope 34 and the second U-shaped member 36b are in direct contact. Alternatively, the second elastic member 40 may be interposed between the scope 34 and the second U-shaped member 36b, while the injection pipe 22 and the first U-shaped member 36a are in direct contact.

In addition, in the above-described embodiment, the first elastic member 38 was composed of elastic tape wrapped around the outer surface of the injection pipe 22, but the first elastic member 38 is not necessarily limited to this form. For example, any elastic member such as rubber can be attached to the outer surface of the injection pipe 22, as long as it elastically deforms when the holding member 36 is attached, filling the gap between the injection pipe 22 and the holding member 36 and generating a holding force.

In addition, in the above-described embodiment, the second elastic member 40 was composed of elastic tape wrapped around the outer periphery of the scope 34, but the second elastic member 40 is not necessarily limited to this form. For example, any elastic member such as rubber can be attached to the outer periphery of the scope 34, as long as it elastically deforms when the holding member 36 is attached, filling the gap between the injection pipe 22 and the holding member 36 and generating a holding force.

In addition, in the above-mentioned Example 4, the first elastic member 102 and the second elastic member 104 were attached to the holding member 100, but similarly, the first elastic member and the second elastic member may also be attached to the holding member 80 in Example 2. Furthermore, similarly, the first elastic member and the second elastic member may also be attached to the holding member 90 in Example 3.

In addition, while in the above-described fourth embodiment the first elastic member 102 and the second elastic member 104 are attached to the holding member 100, it is also possible for only one of these members to be attached to the holding member 100. For example, the first elastic member 102 may be attached to the first U-shaped member 100a of the holding member 100, while the second elastic member 104 is attached to the scope 34. Alternatively, the second elastic member 104 may be attached to the second U-shaped member 100b of the holding member 100, while the first elastic member 102 is attached to the injection pipe 22. In this regard, the holding member 80 of the second embodiment may also have one of the first elastic member and the second elastic member attached to the holding member 80. Similarly, the holding member 90 of the third embodiment may also have one of the first elastic member and the second elastic member attached to the holding member 90.

In addition, in the above-described embodiment, the cross section of the tip 22a of the injection pipe 22 is rectangular, but the cross section of the tip 22a is not necessarily limited to a rectangular shape. For example, the cross section of the tip 22a of the injection pipe 22 may also be cylindrical, just like the other portions of the tip 22a.

Please note that the above is merely one embodiment, and the present invention can be implemented in various forms with various modifications and improvements based on the knowledge of those skilled in the art.

10: Injection device 22: Injection pipe (injection portion, insertion portion) 22a: Tip 31: Fluid injection port 34: Scope (imaging portion, insertion portion) 36, 80, 90, 100: Holding member 36a: First U-shaped member (U-shaped member) 36b: Second U-shaped member (U-shaped member) 38, 102: First elastic member 39, 41: Tape 40, 104: Second elastic member 60: Contact portion (corresponding portion) 80a: First arc-shaped member 80b: Second arc-shaped member 92: Notch

Claims (7)

An injection device having an insertion part that is held by an operator and inserted toward a corresponding part in a clamping space,
The insertion portion is
a tubular injection part having a fluid injection port at its tip for injecting grease ;
an imaging unit for capturing an image including the tip of the emission unit and its surroundings;
a holding member that is inserted laterally in the longitudinal direction of the emission unit and the imaging unit and holds the emission unit and the imaging unit in a state where they are arranged side by side;
an injection device comprising: a first elastic member interposed in a compressed state between the injection unit and the holding member; and a second elastic member interposed in a compressed state between the imaging unit and the holding member. 2. The injection device according to claim 1, wherein the holding member is a pair of members each having a U-shaped cross section, the members being connected in a state where they are adjacent to each other in parallel. the holding member is composed of a first arc-shaped member having an arc-shaped cross section and a second arc-shaped member having an arc-shaped cross section,
The injection device according to claim 1 , wherein the first arc-shaped member and the second arc-shaped member are arranged in parallel, and their circumferential ends are connected to each other. 2. The injection device according to claim 1, wherein the holding member is an annular member having an O-shaped cross section and a notch formed in a part of its circumference. The ejection device according to any one of claims 1 to 4, wherein the first elastic member is attached to the ejection unit, and the second elastic member is attached to the imaging unit. the first elastic member is configured by wrapping an elastic tape around an outer circumferential surface of the injection portion,
The injection device according to claim 5 , wherein the second elastic member is configured by wrapping an elastic tape around an outer circumferential surface of the imaging unit. The injection device according to any one of claims 1 to 4, wherein the first elastic member and the second elastic member are attached to the holding member, respectively.