Injector removing device

Abstract

To facilitate removal of an injector.SOLUTION: The injector removing device includes a shaft member having a holding mechanism that holds the injector, and a tubular member through which the shaft member is inserted so as to be slidable in an axial direction and rotatable around an axis, the holding mechanism is provided with a pin protruding outward in a radial direction, the tubular member is provided with a guide groove that is engageable with the pin and guides the pin in the axial direction, and the guide groove has a first groove portion having a first width and a second groove portion having a second width larger than the first width in a circumferential direction of the tubular member.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an injector removal device. [Background technology]

[0002] Conventionally, in order to replace an injector attached to an engine, the injector may be removed using a tool. Patent Document 1 discloses an injector removal device for removing an injector from an engine. The injector removal device described in Patent Document 1 removes the injector from the engine by gripping the injector with a pair of gripping parts like tweezers and pulling out the injector. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-185461 Summary of the Invention [Problem to be solved by the invention]

[0004] However, if the injector is stuck due to deposits, it is difficult to remove the injector by pulling it out.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to make it easier to remove an injector. [Means for solving the problem]

[0006] In order to solve the above problems, the injector removal device of the present invention comprises: a shaft member having a holding mechanism for holding the injector; a cylindrical member through which the shaft member is inserted so as to be slidable in the axial direction and rotatable around the axis; Equipped with The holding mechanism is provided with a pin that protrudes radially outward, the cylindrical member is provided with a guide groove that is engageable with the pin and guides the pin in the axial direction; The guide groove has, in the circumferential direction of the tubular member, a first groove portion having a first width and a second groove portion having a second width greater than the first width. [Effects of the Invention]

[0007] According to the present invention, it is possible to easily remove the injector. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a schematic diagram showing the configuration of an injector removal device according to this embodiment. [Figure 2] FIG. 2 is a schematic cross-sectional view of the injector removal device according to this embodiment. [Figure 3] FIG. 3 is a schematic side view of the cylindrical member according to this embodiment. [Figure 4] FIG. 4 is a schematic cross-sectional view of the handle according to this embodiment. [Figure 5] FIG. 5 is a diagram showing a state in which the holding mechanism has completed holding the injector. [Figure 6] FIG. 6 is a diagram showing a state in which the tip of the cylindrical member abuts against the area around the mounting hole of the cylinder head. [Figure 7] FIG. 7 is a schematic side view of the cylindrical member in a state where the tip of the cylindrical member abuts against the area around the mounting hole of the cylinder head. [Figure 8] FIG. 8 is a schematic side view of the tubular member when the handle is rotated in a first rotation direction from the state shown in FIG. [Figure 9] FIG. 9 is a schematic side view of the tubular member when the handle is rotated in a first rotation direction from the state shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Specific dimensions, materials, numerical values, etc. shown in the embodiments are merely examples for facilitating understanding of the invention and do not limit the present invention unless otherwise specified. In this specification and drawings, elements having substantially the same functions and configurations are designated by the same reference numerals to avoid redundant explanation, and elements not directly related to the present invention are not shown.

[0010] Fig. 1 is a schematic diagram showing the configuration of an injector removal device 100 according to this embodiment. As shown in Fig. 1, the injector removal device 100 is a device for removing an injector 300 attached to a cylinder head 210 of an engine 200. The injector removal device 100 is used, for example, to replace the injector 300 when the injector 300 breaks down or is repaired.

[0011] The engine 200 is, for example, a vehicle engine mounted on a vehicle 400 such as an automobile. The engine 200 according to this embodiment is, for example, a horizontally opposed engine. However, the engine 200 is not limited to this, and may be an in-line engine, a V-engine, or the like.

[0012] Injector 300 is a fuel injection device that injects fuel into a combustion chamber or an intake port of engine 200. Injector 300 is attached to a mounting hole formed in cylinder head 210 so that a fuel injection hole for injecting fuel is exposed to the combustion chamber or the intake port of engine 200.

[0013] Deposits consisting of unburned fuel components tend to accumulate around the fuel injection holes of the injector 300. As a result, deposits also accumulate in the gap between the injector 300 and the mounting hole of the cylinder head 210. When these accumulated deposits harden, the injector 300 becomes stuck to the mounting hole of the cylinder head 210. In this case, in order to pull the injector 300 out of the mounting hole of the cylinder head 210, it is necessary to apply a force to the injector 300 that is greater than the adhesive force caused by the deposits, making it difficult to remove the injector 300 by pulling it out.

[0014] Therefore, the injector removal device 100 according to this embodiment clamps the injector 300 and applies a twisting force in the circumferential direction of the injector 300 to release the injector 300 from the mounting hole of the cylinder head 210. The injector 300 can then be easily removed from the mounting hole of the cylinder head 210 by pulling out the released injector 300 from the mounting hole of the cylinder head 210. The injector removal device 100 according to this embodiment will be described in detail below.

[0015] 1, the injector removal device 100 includes a shaft member 110, a tubular member 120, and a handle 130. The shaft member 110 includes a main body 140 and a holding mechanism 150. In this embodiment, the main body 140 is composed of a shaft portion 142 and a cylindrical portion 144. The shaft portion 142 has, for example, a cylindrical shape, and the cylindrical portion 144 has, for example, a cylindrical shape with a bottom.

[0016] Fig. 2 is a schematic cross-sectional view of the injector removal device 100 according to this embodiment. Fig. 2 shows a cross section including the central axis of the shaft portion 142 and the cylindrical member 120. As shown in Fig. 2, a portion of the shaft portion 142 is housed in the cylindrical member 120. The shaft portion 142 is spaced apart from the inner surface 122 of the cylindrical member 120 in the radial direction.

[0017] The cylindrical portion 144 is connected to one end 142a of the shaft portion 142 and is supported by the shaft portion 142. The outer diameter of the cylindrical portion 144 is larger than the outer diameter of the shaft portion 142. However, this is not limited thereto, and the outer diameter of the cylindrical portion 144 may be equal to or smaller than the outer diameter of the shaft portion 142. An insertion hole 144a is formed in the cylindrical portion 144. The insertion hole 144a is a through-hole that extends in a direction perpendicular to the central axis of the shaft portion 142 and passes through the cylindrical portion 144.

[0018] The holding mechanism 150 is a mechanism that holds the injector 300. The holding mechanism 150 is connected to the cylindrical portion 144 and supported by the cylindrical portion 144. The holding mechanism 150 includes a pin 152 and a pair of clamping members 154. The pin 152 has, for example, a cylindrical shape. The pin 152 is inserted into an insertion hole 144a of the cylindrical portion 144. The length of the central axis of the pin 152 is greater than the outer diameter of the cylindrical portion 144. Therefore, when the pin 152 is inserted into the insertion hole 144a of the cylindrical portion 144, it protrudes radially outward from the cylindrical portion 144.

[0019] The pair of clamping members 154 sandwich the injector 300. The clamping members 154 have, for example, a semi-cylindrical shape. The pair of clamping members 154 are arranged on either side of the cylindrical portion 144 so as to sandwich the cylindrical portion 144. The inner diameter of the clamping members 154 is equal to the outer diameter of the cylindrical portion 144. However, this is not limited thereto, and the inner diameter of the clamping members 154 may be larger or smaller than the outer diameter of the cylindrical portion 144.

[0020] The clamping member 154 has an engagement portion 154a at its tip that can engage with the injector 300. The engagement portion 154a is a protrusion that protrudes toward the inner diameter side of the clamping member 154. The clamping member 154 also has an insertion hole 154b at its base end on the opposite side to the engagement portion 154a. The insertion hole 154b is a through-hole that extends in a direction perpendicular to the central axis of the shaft portion 142 and passes through the clamping member 154.

[0021] The pins 152 are inserted into the insertion holes 154b of the pair of clamping members 154. The pair of clamping members 154 are supported in a state where the pins 152 are inserted and engaged with the pins 152. In other words, the pair of clamping members 154 are attached to the main body 140 of the shaft member 110 in a state where they are engaged with the pins 152. The length of the central axis of the pins 152 is greater than the outer diameter of the clamping members 154. Therefore, the pins 152 protrude radially outward from the clamping members 154 in a state where they are inserted into the insertion holes 154b of the clamping members 154.

[0022] The tubular member 120 has, for example, a cylindrical shape. The shaft member 110 is inserted into the inside of the tubular member 120. As will be described in detail later, inside the tubular member 120, the shaft member 110 is movable in the direction of the central axis of the tubular member 120 and is rotatable around the central axis. The inner diameter of the tubular member 120 is equal to the outer diameter of the pair of clamping members 154. Therefore, the clamping members 154 are configured to be slidable on the inner surface 122 of the tubular member 120. However, without being limited thereto, the inner diameter of the tubular member 120 may be slightly larger than the outer diameter of the clamping members 154.

[0023] An introduction portion 122a is formed on the inner surface 122 of the tubular member 120. The introduction portion 122a is a portion of the inner surface 122 of the tubular member 120 into which the pair of clamping members 154 are introduced, and is provided at the tip 120a of the tubular member 120. A taper is formed in the introduction portion 122a to narrow the gap between the pair of clamping members 154. The inner diameter of the introduction portion 122a becomes larger as it approaches the tip 120a of the tubular member 120. In other words, the inner diameter of the introduction portion 122a becomes smaller as it moves away from the tip 120a of the tubular member 120.

[0024] A pair of guide grooves 160 are formed in the tubular member 120. The pair of guide grooves 160 are provided symmetrically with respect to the central axis of the tubular member 120. The guide grooves 160 are through holes that penetrate from the inner surface 122 to the outer surface 124 of the tubular member 120. The guide grooves 160 extend in the direction of the central axis of the tubular member 120.

[0025] Both end faces of the pin 152 in the central axis direction are, for example, flush with the outer surface of the tubular member 120. However, this is not limited thereto, and for example, the length of the central axis of the pin 152 may be greater than the outer diameter of the tubular member 120, and both end portions of the pin 152 may protrude from the outer surface of the tubular member 120. Furthermore, the length of the central axis of the pin 152 may be greater than the inner diameter of the tubular member 120 and smaller than the outer diameter.

[0026] The pin 152 is inserted into the pair of guide grooves 160. The pin 152 is inserted into the pair of guide grooves 160, and the pin 152 engages with the guide grooves 160.

[0027] FIG. 3 is a schematic side view of the tubular member 120 according to this embodiment. As shown in FIG. 3, the guide groove 160 has a first groove portion 162 and a second groove portion 164. The guide groove 160 is partitioned into the first groove portion 162 and the second groove portion 164 by two boundary portions BO. For example, the area sandwiched between the two boundary portions BO is the second groove portion 164. One first groove portion 162 is provided on one end 160a of the second groove portion 164 in the extension direction of the guide groove 160. Furthermore, one first groove portion 162 is provided on the other end 160b of the second groove portion 164 in the extension direction of the guide groove 160. Therefore, the second groove portion 164 is sandwiched between the two first groove portions 162. The first groove portion 162 has a first width W1 in the circumferential direction of the tubular member 120. The first width W1 is equal to the outer diameter of the pin 152. This allows the first groove portion 162 to guide the pin 152 along the central axis direction of the tubular member 120. However, without being limited to this, the first width W1 may be slightly larger than the outer diameter of the pin 152.

[0028] The second groove portion 164 has a second width W2 that is larger than the first width W1 in the circumferential direction of the tubular member 120. The second groove portion 164 bulges outward from the first groove portion 162 toward the first rotation direction R of the handle 130. The first rotation direction R of the handle 130 is, for example, a clockwise rotation direction. However, the present invention is not limited to this, and the first rotation direction R may also be a counterclockwise rotation direction.

[0029] The second width W2 of the second groove portion 164 gradually decreases from one end 160a to the other end 160b of the guide groove 160. Therefore, the second groove portion 164 has an inclined portion 166 that is inclined in the opposite direction to the first rotation direction R from one end 160a to the other end 160b of the guide groove 160. The inclined portion 166 is formed on the first rotation direction R side relative to the first groove portion 162.

[0030] 1, the handle 130 has, for example, a cylindrical shape. The handle 130 is arranged, for example, on the side of the base end 120b opposite to the tip end 120a of the tubular member 120. The handle 130 is configured to be rotatable relative to the tubular member 120.

[0031] Fig. 4 is a schematic cross-sectional view of the handle 130 according to this embodiment. As shown in Fig. 4, the handle 130 has a through-hole passing through the central axis, and a female screw 170 is formed on the inner surface of the through-hole. Furthermore, a male screw 180 is formed on the outer surface of the shaft portion 142. The female screw 170 of the handle 130 and the male screw 180 of the shaft portion 142 are screwed together.

[0032] Due to the engagement of the female screw 170 and the male screw 180, rotating the handle 130 in the first rotation direction R causes the handle 130 to move in a direction D1 relative to the shaft member 110. Furthermore, rotating the handle 130 in the first rotation direction R causes the shaft member 110 to move in a direction D2 relative to the handle 130. Here, the direction D2 is the opposite direction to the direction D1.

[0033] Note that a force acts on the shaft member 110, which is threadedly engaged with the handle 130, to rotate integrally with the handle 130 in the first rotational direction R due to the rotational force of the handle 130 in the first rotational direction R. However, as shown in the example in FIG. 3 , when the pin 152 is engaged with the first groove portion 162 of the guide groove 160, movement in the first rotational direction R is restricted by the first groove portion 162. Therefore, when the handle 130 rotates in the first rotational direction R, the shaft member 110 moves only in the direction D2 relative to the handle 130 while the pin 152 is engaged with the first groove portion 162 of the guide groove 160. The procedure for removing the injector 300 using the injector removal device 100 according to this embodiment will be described below.

[0034] 1 shows the injector removal device 100 attached to the injector 300. In this state, for example, as shown in FIG. 2, the upper end surface 300a of the injector 300 abuts against the inner surface 144b, which is the bottom surface of the cylindrical portion 144, thereby completing the positioning of the injector removal device 100 relative to the injector 300.

[0035] 4, when the handle 130 is rotated in the first rotation direction R, the handle 130 moves in the direction D1 relative to the shaft member 110. The direction D1 is a direction in which the handle 130 approaches the injector 300 and the cylinder head 210. As the handle 130 moves in the direction D1, the tubular member 120 is pressed by the handle 130 and moves integrally with the handle 130 in the direction D1.

[0036] 2, the shaft portion 142, the cylindrical portion 144, and the holding mechanism 150 move in direction D2 relative to the tubular member 120 and are drawn into the interior of the tubular member 120. At this time, the pair of clamping members 154 come into contact with the introduction portions 122a formed on the inner surface 122 of the tubular member 120, and are moved toward each other as they proceed in direction D2 due to the tapered shape of the introduction portions 122a. As a result, the engaging portions 154a of the pair of clamping members 154 engage with the engaged portions 310 of the injector 300, enabling the injector 300 to be clamped.

[0037] When handle 130 is further rotated in first rotation direction R, handle 130 and tubular member 120 move in direction D1, and shaft portion 142, cylindrical portion 144, and holding mechanism 150 are pulled further into tubular member 120. As pair of clamping members 154 of holding mechanism 150 are pulled further into tubular member 120, the gap between engaging portions 154a of pair of clamping members 154 becomes narrower, and the force with which pair of clamping members 154 clamp injector 300 increases.

[0038] When the position of the tip ends of the pair of clamping members 154 in the central axial direction of the cylindrical member 120 is, for example, the same as the position of the tip ends 120a of the cylindrical member 120, the distance between the engaging portions 154a of the pair of clamping members 154 becomes the smallest. In other words, the force with which the pair of clamping members 154 clamp the injector 300 becomes the largest. At this point, the holding of the injector 300 by the holding mechanism 150 is completed.

[0039] Fig. 5 is a diagram showing a state in which the holding mechanism 150 has completed holding the injector 300. As shown in Fig. 5, when the holding of the injector 300 has been completed, the entire holding mechanism 150 is housed inside the cylindrical member 120. In this state, the tip 120a of the cylindrical member 120 is separated from the cylinder head 210.

[0040] When the handle 130 is further rotated in the first rotation direction R, the handle 130 and the tubular member 120 move further in the direction D1, and the tip 120a of the tubular member 120 comes into contact with the area around the mounting hole of the cylinder head 210.

[0041] Fig. 6 is a diagram showing a state in which the tip 120a of the tubular member 120 abuts against the area surrounding the mounting hole of the cylinder head 210. As shown in Fig. 6, when the tip 120a of the tubular member 120 abuts against the area surrounding the mounting hole of the cylinder head 210, movement of the handle 130 and the tubular member 120 in direction D1 is restricted by the cylinder head 210.

[0042] FIG. 7 is a schematic side view of the tubular member 120 in a state where the tip 120a of the tubular member 120 abuts against the area surrounding the mounting hole of the cylinder head 210. As shown in FIG. 7, when the tip 120a of the tubular member 120 abuts against the area surrounding the mounting hole of the cylinder head 210, the pin 152 is positioned in the second groove portion 164 of the guide groove 160. The second width W2 of the second groove portion 164 is larger than the outer diameter of the pin 152. For example, the second width W2 is at least twice the outer diameter of the pin 152. However, this is not limited thereto, and the second width W2 may be greater than one time but less than two times the outer diameter of the pin 152. Therefore, when the pin 152 is positioned in the second groove portion 164 of the guide groove 160, the pin 152 can rotate in the first rotation direction R until it abuts against the second groove portion 164.

[0043] FIG. 8 is a schematic side view of the tubular member 120 when the handle 130 is rotated in the first rotation direction R from the state shown in FIG. 7 . As described above, a force acts on the shaft member 110, which is threadedly engaged with the handle 130, to rotate integrally with the handle 130 in the first rotation direction R due to the rotational force of the handle 130 in the first rotation direction R. This force causes the pin 152 of the shaft member 110 to rotate in the first rotation direction R until it abuts the second groove portion 164, as shown in FIG. 8 . Furthermore, when the pin 152 is rotated in the first rotation direction R in the second groove portion 164, the pair of clamping members 154 of the shaft member 110 rotate integrally with the pin 152, the main body portion 140, and the injector 300 while clamping the injector 300. At this time, a twisting force in the first rotation direction R is applied to the injector 300.

[0044] In this manner, while the injector 300 is clamped, by applying a twisting force to the injector 300 in the first rotation direction R, it is possible to release the injector 300 from the attachment hole of the cylinder head 210. Furthermore, by continuing to rotate the handle 130 only in the first rotation direction R, it is possible to release the injector 300 from the attachment hole of the cylinder head 210.

[0045] 9 is a schematic side view of the tubular member 120 when the handle 130 is rotated in the first rotation direction R from the state shown in FIG. When the pin 152 abuts against the second groove portion 164 and movement in the first rotation direction R is restricted, and the handle 130 is rotated in the first rotation direction R, the shaft member 110 moves in the direction D2 relative to the handle 130 due to the engagement of the female thread 170 and the male thread 180. At this time, the pin 152 rotates in the opposite direction to the first rotation direction R while moving in the direction D2 along the inclined portion 166 of the second groove portion 164. At this time, a pulling force in the direction D2 is applied to the injector 300, and a twisting force in the opposite direction to the first rotation direction R is also applied to the injector 300. In this way, by applying a twisting force to the injector 300 in the first rotational direction R and then applying a twisting force in the opposite direction to the first rotational direction R, it is possible to more easily release the injector 300 from the mounting hole of the cylinder head 210 than when no twisting force is applied in the opposite direction to the first rotational direction R. Furthermore, by continuing to rotate the handle 130 only in the first rotational direction R, it is possible to perform a pull-out operation of the injector 300 while releasing the injector 300 from the mounting hole of the cylinder head 210. By performing the operation of pulling out the injector 300, whose fixation has been released, from the mounting hole of the cylinder head 210 in this way, it is possible to easily remove the injector 300 from the mounting hole of the cylinder head 210.

[0046] As described above, the guide groove 160 of this embodiment has, in the circumferential direction of the tubular member 120, the first groove portion 162 having the first width W1 and the second groove portion 164 having the second width W2 that is larger than the first width W1. This makes it possible to apply a twisting force to the injector 300 in the first rotational direction R when the pin 152 that engages with the guide groove 160 is positioned in the second groove portion 164. As a result, it is possible to easily release the injector 300 from the mounting hole of the cylinder head 210 and to easily remove the injector 300. Note that in this embodiment, an example has been described in which the second groove portion 164 bulges toward the first rotational direction R with respect to the first groove portion 162. However, this is not limited thereto, and the second groove portion 164 may bulge toward the side opposite to the first rotational direction R with respect to the first groove portion 162. In this case, when the pin 152 moves in direction D2 relative to the tubular member 120 and reaches the second groove portion 164 from the first groove portion 162, the handle 130 is rotated in the direction opposite to the first rotation direction R, and then rotated in the first rotation direction R. This makes it possible to apply to the injector 300 a twisting force in the direction opposite to the first rotation direction R and a twisting force in the first rotation direction R.

[0047] Additionally, the second groove portion 164 has an inclined portion 166 in which the width in the circumferential direction of the tubular member 120 gradually decreases from the second width W2. This makes it possible to apply a twisting force to the injector 300 in the first rotational direction R, and then apply a twisting force in the opposite direction to the first rotational direction R. As a result, it is possible to easily release the injector 300 from the mounting hole in the cylinder head 210.

[0048] Furthermore, the pair of clamping members 154 clamp the injector 300 by narrowing the gap between them due to the tapered introduction portion 122a. When the pin 152 is rotated in the first rotation direction R in the second groove portion 164, the pair of clamping members 154 rotates the pin 152, the main body portion 140, and the injector 300 integrally. This allows a twisting force to be applied to the injector 300 while it is clamped by the pair of clamping members 154, making it easier to release the injector 300 from the attachment hole of the cylinder head 210.

[0049] In addition, the handle 130 is formed with either a female thread 170 or a male thread 180, and the shaft member 110 is formed with the other female thread 170 or male thread 180 that can engage with the female thread 170 or male thread 180. This makes it possible to apply a twisting force and a pulling force to the injector 300.

[0050] While the present invention has been described above with reference to the accompanying drawings, it goes without saying that the present invention is not limited to such embodiments. It is clear that those skilled in the art can conceive of various modifications and alterations within the scope of the claims, and it is understood that such modifications and alterations also fall within the technical scope of the present invention.

[0051] In the above embodiment, an example has been described in which the second groove portion 164 of the guide groove 160 is provided with the inclined portion 166. However, this is not limitative, and the second groove portion 164 does not necessarily have to be provided with the inclined portion 166. For example, the second groove portion 164 may be a groove having a constant second width W2 in the central axial direction of the tubular member 120.

[0052] In the above embodiment, an example has been described in which the female thread 170 is formed in the handle 130 and the male thread 180 is formed in the shaft member 110. However, this is not limited to this, and for example, the male thread 180 may be formed in the handle 130 and the female thread 170 may be formed in the shaft member 110. In other words, one of the female thread 170 or the male thread 180 may be formed in the handle 130, and the other of the female thread 170 or the male thread 180 may be formed in the shaft member 110. [Explanation of symbols]

[0053] 100 Injector removal device 200 Engine 300 injectors

Claims

1. a shaft member having a holding mechanism for holding the injector; a cylindrical member through which the shaft member is inserted so as to be slidable in the axial direction and rotatable around the axis; Equipped with The holding mechanism is provided with a pin that protrudes radially outward, the cylindrical member is provided with a guide groove that is engageable with the pin and guides the pin in the axial direction; The guide groove has a first groove portion having a first width in the circumferential direction of the cylindrical member and a second groove portion having a second width larger than the first width. Injector removal device.

2. The second groove portion has an inclined portion in which the width in the circumferential direction gradually decreases from the second width.

2. The injector removal device according to claim 1.

3. the holding mechanism includes a pair of clamping members that clamp the injector, an introduction portion of the inner surface of the cylindrical member into which the pair of clamping members are introduced is formed with a taper for narrowing the gap between the pair of clamping members; the pair of clamping members are attached to the main body of the shaft member in a state of being engaged with the pin, the pair of clamping members clamp the injector by narrowing the gap between them due to the tapered introduction portion, and when the pin is rotated around the axis in the second groove portion, the pin, the main body portion, and the injector rotate integrally.

3. The injector removal device according to claim 1 or 2.

4. a handle for rotating the shaft member relative to the tubular member; Furthermore, The handle is formed with either a female thread or a male thread, The shaft member is formed with the other of the female screw and the male screw that can be engaged with the one of the female screw and the male screw.

3. The injector removal device according to claim 1 or 2.

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