JPH03132615A - Endoscope holder - Google Patents

Abstract

PURPOSE:To reduce the fatigued degree of an observer by keeping the natural posture of the observer by providing a base member which introduces an endoscope insertion part to an engine at the terminal part of a tubular member provided with flexibility which inserts with pressure the endoscope insertion part. CONSTITUTION:The tubular member 34 to insert the endoscope insertion part 6 provided with flexibility and having a pressing part 35 which presses the endoscope insertion part 6, and the base material 10 provided at the terminal part of the tubular member 34 and connected to the engine 4 and introduces the endoscope insertion part 6 to the engine 4 are provided. Namely, the endoscopee insertion part 6 is inserted to the inside of the tubular member 34, and is introduced to the engine 4 via the base material 10, and the pressing part 35 of the tubular member 34 presses the endoscope insertion part 6 and holds the endoscope insertion part 6 stably and bringing to a standstill. In such a way, the tip part 14 of an endoscope in the engine 4 can be stably held, and also, the fatigued degree of the observer can be reduced by keeping the natural posture of the observer.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an endoscope holding device for holding an endoscope for observing the inside of an engine.

[Prior Art] In recent years, industrial endoscopes, which can be used for observation and inspection by inserting a meter-long insertion section into boilers, turbines, engines, chemical plants, etc., have been widely used. There is.

In particular, with the internal PA mirror for engines, check for burnt parts on the screw head, scratches on the cylinder inner wall, foreign objects and stones on the intake and exhaust valves, and the cylinder block and cylinder head. The engine combustion chamber should be disassembled to ensure that there is no deformation in the gasket between the
There has been a request for a long time to do this without having to do so. One method was to remove the spark plug and insert an endoscope into the combustion chamber through the hole to observe the inside.

In addition, in Jikai No. 11061-294341, in an internal combustion engine having an exhaust valve or an intake valve, an inspection port that can be opened and closed is provided in the exhaust or intake passage, and an endoscope using a fiberscope or the like is installed in the inspection port. The method for inspecting the intake and IJI valves by inserting the valve and inspecting the condition of the valve stem and seat of the valve seat is shown.

By the way, when inspecting using the endoscope, the position of the endoscope tip inside the engine combustion chamber is unstable because it does not have a fixing means, and the observer must insert the endoscope close to the engine to maintain the observation direction. I was holding the part.

[Problems to be Solved by the Invention] However, as described above, inspection using an endoscope poses a problem in that the observer is in an unnatural posture because the observer grasps the endoscope insertion part near the engine, resulting in high levels of fatigue. Ta.

The present invention has been made in view of the above-mentioned circumstances, and includes: - stably holding the tip of the endoscope inside the lens; The purpose is to do something.

[Means for Solving the Problems] In order to achieve the above object, the endoscope holding device of the present invention has the following features: , a flexible tubular member for inserting the endoscope insertion portion and having a pressing portion for pressing the endoscope insertion portion; and a tubular member provided at the end of the tubular member and connected to the engine. , and a base member for inserting an endoscope into the engine for four people.

[Operation] In the endoscope holding device configured as described above, the base member provided at the end of the tubular member is connected to the engine. The endoscope insertion portion is inserted into the tubular member and introduced into the engine via the mouthpiece member. The pressing portion of the tubular member presses the endoscope insertion portion and holds the endoscope insertion portion stably stationary.

[Example] Hereinafter, an example of the present invention will be specifically described with reference to the drawings.

FIGS. 1 to 4 relate to a first embodiment of the present invention.
The figure is an explanatory diagram of an endoscope holding device, Fig. 2 is an explanatory diagram of a side-viewing type tip attachment, Fig. 3 is an explanatory diagram of a direct-viewing type tip attachment, and Fig. 4 is an explanatory diagram of a base member. .

In FIG. 1, a retaining device 7 is attached to the engine 4, and this retaining device 7 allows the engine 4 to hold the engine internally. ! Insertion part 6 of mirror 2
The tip of the cylinder is held and introduced into the combustion chamber 9. The endoscope 2 constitutes an endoscope device 1 together with a light source device @3, and is supplied with illumination light from the light source device 3.

The endoscope 2 has a large diameter operating section 8 at the rear end of the insertion section 6.
is connected to the engine 4 at the rear end of the operating section 8.
See the combustion chamber 9 with the naked eye! An eyepiece 11 is provided for viewing the image. Furthermore, a light guide cable 12 through which a light guide (not shown) is inserted extends from the side of the operation unit 8 , and a connector 13 provided at the rear end of this light guide cable 12 is connected to the light source device 3 . The illumination light output from the light source device 3 is transmitted into the combustion chamber 9.

In addition, the light source 5A position 3 should preferably be explosion-proof, and the power source should be AC,
t'dt (ffi battery or car battery).

The insertion portion 6 has a distal end portion 14 and a flexible portion 16 connected to each other from the distal end side. The tip 14 includes a tip body 17 made of hard metal or the like, and a tip attachment 20 shown in FIG. 2 that can change the viewing direction or angle of view is attached to the tip of the tip body 17. It is attached freely.

The above-mentioned tip attachment 20 is a side-viewing type tip attachment 20 in which an objective lens system 18 and a light distribution lens system 19 are provided on the outer circumferential wall, and allows observation in a direction perpendicular to the insertion direction of the tip body 17. It has become. The objective lens system 18 and the light distribution lens system 19 are provided at the same position with respect to the longitudinal axis in order to eliminate variations in light distribution. The light distribution lens system 19 is configured to irradiate the inside of the combustion chamber 9 with the illumination light output from the light source device 3. A knurled ring 21 is rotatably provided on the tip body 17, and by rotating this knurled ring 21, a threaded portion (not shown) of the tip attachment 20 and a threaded portion (not shown) of the tip ring 21 are connected. are screwed together to fix the tip attachment 20 to the tip main body 17.

In addition to the side-viewing type tip attachment I., a direct-viewing type tip attachment h20a shown in FIG. 3 may be attached to observe the insertion direction of the tip tree [17].

Further, in addition to side viewing and direct viewing, a perspective type tip attachment may be attached.

An incident end surface of an image guide (not shown) is provided at the imaging position of the objective lens system 18, and this image guide is inserted through the insertion section 6 and transmits an observed image to the eyepiece section 11. ing. The length of this image guide is, for example, 7 Q cm, the number of image guides is 20,000 μ, and the field angle of the objective lens system 18 is 80 μ.

On the other hand, the engine 4 is composed of a cylinder block 23, a cylinder head 24, and a piston 26'iq, and the cylinder head 24 is provided with an intake valve 27 and an antagonistic valve 28. The upper part of the cylinder head 24,
A spark plug fixing layer screw portion 29 into which a spark plug (not shown) is screwed is provided between the intake valve 27 and the exhaust valve 28, and the holding device 7 is attached to the two female screw portions.
A base portion 010 constituting the is screwed into the base. As shown in FIG. 4, this base member 10 has a substantially cylindrical shape and has an insertion passage 31 through which the endoscope insertion portion 6 is inserted. It is provided. A male screw portion 33 is screwed into the flange portion 32J of the mouthpiece member 10 and the re-engine side portion, and the flange surface of the flange portion 32 is in contact with the engine 4 to connect to the two spark plug fixing layer screw portions. It is screwed in. Further, one end of the tubular member 34 is fixed to the outer jacket at a portion of the base member 10 on the side opposite to the engine from the seven flange portions 32.

This tubular member 34 is made of a flexible material such as synthetic resin, and has a length such that the other end reaches the vicinity of the operating section 8 of the endoscope 2. Tubular member 34
The other end portion forms a pressing portion 35 .

The operation of the endoscope holding bag r17 configured as described above will be explained next.

Remove the spark plug attached to the automobile engine 4, and attach the flange portion 32 to the spark plug fixing layer threaded portion 29.
until the flange surface of the base member 10 comes into contact with the engine 4.
Screw in. Then, the endoscope insertion section 6 is inserted into the tubular member 34 from the distal end attachment 20. The observation position is determined by positioning the tip attachment 20 within the combustion chamber 9 and moving the operating section 8 forward and backward in the insertion direction. Once the observation position is determined, the pressing portion 35 at the end of the tubular member 34 on the operating portion 8 side is crushed by hand, and the insertion portion 6 is grasped.

By gripping it in this way, the tip attachment 2
The observation positions 0 and 11 are fixed, and the endoscope 2 is stably held stationary.

Furthermore, when changing the observation position, the position of the tip attachment 20 within the combustion chamber 9 can be easily changed by stopping gripping the pressing part 35.

Generally, the insertion section 6 of the endoscope 2 is flexible, so when the insertion section 6 is introduced into the engine 4, if the insertion section 6 is not held near the engine 4, I! The direction of the force is not constant, making it difficult to observe the inside of the engine 4. However, in this embodiment, the pressing part 3 which is the end of the tubular member 34 on the operation part 8 side
By pressing 5, the insertion portion 6 is fixed to the engine 4 via the tubular member 34 and the mouthpiece member 10, so that the position of the tip attachment 20 can be stably held stationary.

In addition, since the pressing portion 35 of the tubular member 34 is located near the engine room of an automobile, it can be grasped while standing naturally, so the observer does not have to take an unreasonable posture and suffers from fatigue during inspection. degree can be reduced.

FIG. 5 is an explanatory diagram of a base member according to a second embodiment of the present invention.

The cap part 4436 of this embodiment is the cap member 10 of the first embodiment.
2 with the male threaded portion 33 removed.

The flange portion 32 described in the first embodiment is formed in the center of the [1 gold member 36], and a cylindrical elastic member 37 is externally fitted in a portion on the engine 4 side of the flange portion 32. There is. The outer diameter of this elastic member 37 is slightly larger than the inner diameter of the spark plug fixing layer threaded part 29, so that when it is inserted into the spark plug fixing layer threaded part 29, it is elastically deformed and caused by this elastic deformation. The base member 36 is fixed to the spark plug fixing layer screw portion 29 by the biasing force.

The configuration of the square is similar to that of the first embodiment.

In this embodiment, when fixing the cap member 36 to the engine 4, the elastic member 37 provided on the cap member 36 is pushed into the spark plug fixing female screw portion 29. The elastic member 37 is elastically deformed and inserted into the spark plug fixing female screw portion 29.

Other effects are the same as in the first roasted example.

In this embodiment, when fixing the cap member 36 to the engine 4, there is no need to screw the cap member 36, and the cap member 36 can be fixed simply by pushing it. Therefore, the installation work is easy! This can be done more easily than in the 51 actual M example.

6 to 8 relate to the third embodiment of the present invention, and FIG.
The figure is a sectional view of the pressing part, FIG. 7 is a perspective view of the pressing part, and FIG. 8 is a sectional view of the base member.

Among the tubular members 34 of this embodiment? The pressing part 35 formed on the side of the IAa operation part 8 has a plurality of three slits, 39, . . . from the end of the tubular member 34, as shown in FIGS.
is formed. And these three slits, 39,・
Pressing members 41, 41, . The endoscope insertion section 6 is inserted into the pressing members 41, /11, . . .
The inner diameter of the insertion passage 42 is smaller than the outer diameter of the endoscope insertion portion 6.

On the other hand, the cap member 36 described in the second embodiment is connected to the end of the tubular portion +, l 3 /I on the engine 4 side.

The outer diameter of the portion of the flange portion 32 of the mouthpiece member 36 on the rear engine 4 side is slightly smaller than the inner diameter of the spark plug fixing female screw portion 29.

In this embodiment, the holding device 7 is connected to the engine 4 by passing the metal part 4436 into the threaded part 29 of the spark plug fixing part 1.
is inserted through the insertion passage 42 of the pressing part 35. Since the insertion passage 42 is formed to be slightly larger than the outer diameter of the insertion portion 6, the insertion portion 6 can be easily inserted therethrough.

The tip attachment 20 is inserted into the combustion chamber 9 and the interior of the combustion chamber 9 is observed through the eyepiece 11. To position the tip attachment 20, firmly squeeze the pressing part 35. Then, the pressing portions 041, 41, . . . can press the insertion portion 6 and restrict the movement of the insertion portion 6 in the insertion direction.

In addition, when moving the tip attachment 20 forward or backward, the pressing member 41.4 can be
1... are separated from the insertion section 6, and the insertion section 6 can freely move forward and backward.

In this embodiment, the engine 4 and the holding device 7 are connected by simply inserting the cap member 36 into the spark plug fixing female screw portion 29. Therefore, the connection work can be easily performed.

Further, since the pressing portion 35 is provided with pressing members 41, 41, . . . , the insertion portion 6 can be securely fixed.

Other configurations, operations, and effects are the same as those in the first embodiment.

FIG. 9 is a sectional view of a base member according to a fourth embodiment of the present invention.

The cap member 44 of this embodiment is obtained by attaching a magnet 46 to the flange portion 32 of the cap member 36 of the third embodiment.

A ring-shaped magnet 46 is fixed to the peripheral edge of the flange portion 32 formed at the center of the outer peripheral surface of the metal member 44.

As described above, in this embodiment, by attaching the magnet 46 to the flange portion 32, if the carrot 4 is made of a magnetic material such as 4. Can be securely fixed and covered.

Note that the entire flange portion 32 may be configured as a magnet.

Other configurations, operations, and effects are the same as those in the first embodiment.

10 to 13 relate to the fifth embodiment of the present invention,
FIG. 10 is a sectional view of the pressing part, FIG. 11 is an explanatory view of the spring member, FIG. 12 is an explanatory view of the operation of the spring member, and FIG. 13 is an explanatory view of the use state of the holding device.

In this embodiment, the pressing portion 35 of the tubular member 34 of the first embodiment is pressed by a spring member 48.

As shown in FIG. 11, the spring member 48 is formed by winding a thin wire 49 into a ring shape, which provides elasticity in case of residual illness. Thin line 4
Both ends of 9 are bent to provide a finger rest 51.51, and when the finger rest 51.51 is grasped, the first
Elastic deformation occurs as shown by the broken line in Figure 1. The spring member 48 is externally fitted onto the pressing portion 35, and by pressing the endoscope insertion portion 6 via the pressing portion 35, the tubular member 34 and the insertion portion 6 are fixed.

Further, when the spring member 48 is deformed as shown by the broken line in FIG. 11, the fixation between the tubular member 34 and the insertion portion 6 is released as shown in FIG.

The other configurations are the same as in the first embodiment.

In this embodiment, when the endoscope insertion portion 6 is inserted into the tubular member 34, the finger hooks of the spring member 48 grasp the portions 51 and 51 and elastically deform them into the shape shown by the broken line in FIG. As a result, the state shown in FIG. 12 is achieved, and the insertion portion 6 can be easily inserted into the tubular member 34. When the position of the tip attachment 20 is determined, the finger grip releases the grip on the part 51.51. J, the spring member 48 returns to the shape shown by the solid line in FIG. 11, and fixes the insertion portion 6 and the tubular member 34 via the pressing portion 35 as shown in FIG.

In addition, the bonnet 52 of the car shown in Figure 13
The endoscope operation section 8 may be hung by a hanging hardware 53 from a stand hook section 54 for fixing the endoscope. By doing this, it is not necessary to hold the endoscope 2 during observation, and fatigue associated with the work can be reduced.

In this embodiment, when fixing the observation position as in the first to fourth embodiments, the pressing part 35 must be pressed down by hand, but by releasing the hand from the spring member 48, the observation position can be Since it is fixed, you can concentrate on observing it.

14 to 16 relate to the sixth embodiment of the present invention,
Fig. 14 is a sectional view of the pressing part, and Fig. 15 is A-A in Fig. 14.
16 is a sectional view of a pressing portion showing a modification of this embodiment.

The pressing portion 35 of this embodiment has a cylindrical upper cap member 56. This upper cap member 56 is fixed to the end of the tubular member 34 on the endoscope operating section 8 side. Upper cap member 56
A through hole 57 is formed in the peripheral wall in the radial direction. A shaft portion 59 of a button 58 is inserted through the through hole 57 , and a shaft portion 59 is located outside the upper base member 56 of the shaft portion 59 .
A larger diameter conducting portion 61 is formed. A female threaded portion 62 is formed in the longitudinal direction of the shaft portion 59, and a male threaded portion 64 of a pad 63 is screwed into this female threaded portion 62.

An arc-shaped holding member 66 is fixed to the inner circumferential wall surface of the upper cap member 56 at a position facing the pad 63. The dimension between the pad 63 and the holding member 66 is such that the endoscope insertion section 6 can pass therethrough when the finger pressing section 61 is not pressed.

Further, a coil spring 65 is wound around the shaft portion 59 sandwiched between the upper cap member 56 and the finger pressing portion 61 so as to have a biasing force.

The other configurations are the same as in the first embodiment.

In this embodiment, when observing the inside of the combustion chamber 9 with the tip attachment 20 fixed, the finger pressing portion 61 is pressed with a finger. As a result, the pad 63 can resist the biasing force of the coil spring 65 and sandwich the internal insertion part 6 with the holding member 66 to fix the VA position. The coil spring 65 causes the pad 63 to move in the outer radial direction, allowing the insertion portion 6 to move forward and backward freely.

Other functions and effects are similar to those of the first embodiment.

In addition, as shown in FIG. 16, the pad 63 and the holding member 66
It is also possible to provide uneven portions 67 and 68 on the surface to improve the anti-slip effect.

FIG. 17 is a sectional view of a holding device according to a seventh embodiment of the present invention.

In this embodiment, the tubular member 34 of the first embodiment is constructed from a hard tubular member 71 made of a hard material and a soft tubular member 72 made of a soft material.

The cap member 36 described in the third actual exile is connected to one end of the rigid tubular member 71. Moreover, one end of the soft tubular member 72 is connected to the other end.

In this embodiment, since the part near the spark plug fixing female screw part 29 is made of a hard tubular member 71, the endoscope insertion part 6
can improve insertability.

Other functions and effects are similar to those of the first embodiment.

FIG. 18 is a sectional view of a holding device according to an eighth embodiment of the present invention.

In this embodiment, instead of the rigid tubular portion 4471 of the seventh embodiment,
[A coil spring 74 is provided.

The cap member 36 described in the third embodiment is connected to one end of the coil spring 74. Moreover, the soft tubular member 72 of the seventh embodiment is connected to the other end.

By providing the coil spring 74 in a portion close to the spark plug fixing female screw portion 29 as in this embodiment, the rigid tubular member 71 has more curvature than the seventh embodiment, and has a tubular shape that does not bend. The member can be formed.

Other functions and effects are similar to those of the first embodiment.

FIG. 19 and FIG. 20 relate to the ninth embodiment of the present invention,
FIG. 19 is a sectional view of the pressing part, and FIG. 20 is an explanatory view of the holding bag attached to the automobile.

In this embodiment, an interlock spiral tube 76 is provided in the tubular member 34.
This is what was used. Note that the pressing part 35 is formed at the sixth position.
This is similar to the example.

The interlock spiral tube 76 is formed to be completely bent, and when it is bent, the curved shape at the time of () remains as it is.
It is supposed to be done. Therefore, when exchanging the tip attachment 20 while observing the inside of the combustion chamber 9, the interlock spiral tube 76 is fixed to the engine 4 with the base member 10 after the observer releases the interlock spiral tube 76. As long as it is in place, it will not fall into the engine room and will stand on its own as shown in Figure 20.
The insertion portion 6 can be easily inserted into the interlock spiral tube 76 again.

In each of the above embodiments, an optical endoscope having an eyepiece section 11 in the operation section 8 has been described, but the present invention is not limited to this, and an electronic endoscope using a solid-state image carrier may be used. The holding device of the present invention may be applied to the J2 mirror.

[Effects of the Invention] As explained above, according to the present invention, the distal end of the endoscope inside the engine is stably held, and the observer's fatigue level is reduced by keeping the posture natural when measuring IQ. can be written.

[Brief explanation of the drawing]

FIGS. 1 to 4 relate to a first embodiment of the present invention.
Figure 2 is an explanatory diagram of the endoscope holding device, Figure 2 is an explanatory diagram of the side-view type tip attachment, Figure 3 is an explanatory diagram of the direct-view type tip attachment, Figure 4 is an explanatory diagram of the base member, and Figure 4 is an illustration of the base member. 5 is an explanatory diagram of the cap member according to the second embodiment of the present invention, and FIG.
8 to 8 relate to a third embodiment of the present invention, FIG. 6 is a sectional view of the pressing part, FIG. 7 is a perspective view of the pressing part, FIG. 8 is a sectional view of the base member, and FIG. 9 is a sectional view of the pressing part. Regarding the fourth embodiment of the present invention,
10 to 13, which are cross-sectional views of the cap member, relate to the fifth embodiment of the present invention, and FIG. 10 is a cross-sectional view of the pressing part, and FIG.
The figure is an explanatory diagram of the spring member, Fig. 12 is an explanatory diagram of the operation of the spring member, Fig. 13 is an explanatory diagram of the usage state of the holding device, and Fig. 14 is an explanatory diagram of the use state of the holding device.
The figures to FIG. 16 relate to the sixth embodiment of the present invention, and the fourteenth embodiment
15 is a sectional view of the pressing part of the present invention, FIG. 15 is a view taken in the direction Δ' of FIG. 14, FIG. 16 is a sectional view of the pressing part showing a modification of the present embodiment, and FIG. A cross-sectional view of the holding device, FIG. 18, relates to the seventh embodiment, and a cross-sectional view of the holding device, FIG. 19 and FIG. 20, relate to the ninth embodiment of the present invention. , FIG. 19 is a sectional view of the pressing part, and FIG. 20 is an explanatory view of the holding device attached to the automobile. 2... Endoscope 6... Insertion section 7... Holding device 10... Cap member 34... Tubular member
35... Pressing part Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Fig. 8 Fig. 7 Fig. 9 Fig. 10 Fig. 12 Fig. 13 Fig. 17 Fig. 8 Fig. 14 Figure 16 Figure 19

Claims (1)

[Scope of Claims] An endoscope holding device that holds an endoscope insertion portion inserted into an engine, wherein the endoscope holding device has flexibility and has a pressing portion that presses the endoscope insertion portion. A tubular member for inserting the endoscope insertion section; and a base member provided at an end of the tubular member and connected to the engine to introduce the endoscope insertion section into the engine. An endoscope holding device characterized by: