JP5305964B2 - Endoscope light source device - Google Patents

Description

  The present invention relates to an endoscope light source device, and more particularly to a light source lamp mounting structure in an endoscope light source device.

  2. Description of the Related Art In general, an endoscope system for diagnosing or treating a body cavity of a patient is an endoscope that images an inside of a body cavity with an image sensor provided at a distal end portion, and processes and monitors an image signal generated by the image sensor. And a light source device that supplies light for illuminating an observation site in the body cavity to the endoscope. A light source device of a general endoscope system includes a light emitting unit that emits light such as a xenon lamp and a halogen lamp as a light source, and a parabolic reflector that reflects and collects light from the light emitting unit. A light source lamp is used. Such light source lamps are regularly replaced with new lamps because the amount of light decreases due to their lifetime. In addition, when the light source lamp is turned off due to a failure or the like, it is replaced with a new lamp.

  Usually, when replacing the light source lamp, a part of the exterior cover of the light source device is opened, and a hand is inserted into the device from there to remove the old lamp and install a new lamp. At this time, the optical axis of the light source lamp and the optical axis of the light guide of the connected endoscope coincide with each other so that the light emitted from the light source lamp is efficiently propagated to the endoscope. It is necessary to position and install the light source lamp. In addition, some of the light source lamps with flanges in the market have protrusions such as burrs and indicators indicating the lamp mounting direction at predetermined positions on the front surface of the flange. It is necessary to install a light source lamp.

  However, in order to avoid an increase in the size of the light source device, the inside of the device is provided with a minimum necessary space for replacement. Therefore, in a narrow work space, the position of the projection of the light source lamp and the like must be visually confirmed to perform positioning and fixing, which is very difficult to perform.

  In order to solve such a problem, an example of a structure for easily attaching a light source lamp is described in Patent Document 1. In the light source device of Patent Document 1, a fixing plate to which a light source lamp is attached and a holding plate provided in a housing of the light source device are configured by separate members. Then, the light source lamp is fixed to the fixed plate in a state where the fixed plate is pulled out of the housing, and the fixed plate is slid on the holding plate and stored in the housing.

JP-A 64-42622

  However, in the structure described in Patent Document 1, when the light source lamp is fixed in a state where the fixing plate is pulled out from the holding plate by a predetermined amount, the light source is visually observed in a limited work space as in the conventional case. Since the lamp must be positioned and fixed to the fixed plate, it is difficult to work. In addition, when fixing the light source lamp with the fixing plate completely removed from the holding plate and taken out of the housing, a sufficient working space can be secured and fixing by visual observation is easy. The operation | work of attaching again according to the guide groove of a holding | maintenance board is needed, and an effort will increase.

  Further, in the structure described in Patent Document 1, the light source lamp is only urged from one direction by a leaf spring to the fixed plate, and therefore the light source lamp is caused by vibration or impact during transportation of the light source device. There is a risk that the position of the lamp will shift. Furthermore, both the fixed plate and the holding plate have a complicated configuration with a plurality of leaf springs, guide grooves, etc., which increases the number of parts and the number of processing steps, resulting in an increase in cost. There was also a problem of end.

  Therefore, the present invention has been made in view of the above circumstances, and an object thereof is to provide an endoscope light source device that can easily and accurately replace a light source lamp with a simple structure.

In order to solve the above problems, according to the present invention, a light source, a support plate for supporting the light source, a guide rail and a spring member attached to the support plate, a slide member supported slidably on the guide rail, An endoscope light source device is provided. The slide member has a positioning portion for positioning the light source, and the endoscope light source device has the light source positioned at the positioning portion and is fixed to the slide member. The slide member is slid to a predetermined position in a state where no light source is present, and a part of the light source is sandwiched between the spring member and the support plate and fixed to the support plate .

  With this configuration, the light source lamp can be fixed to the support plate only by performing an operation of positioning and sliding the light source on the slide member. Thereby, it is not necessary to fix the light source lamp in a limited work space as in the prior art, and the light source lamp can be easily attached with less effort.

  The slide member may be slidable so that a part of the slide member protrudes outside the housing of the endoscope light source device. With this configuration, the light source can be positioned on the slide member outside the housing that is easily visible.

  The spring member may be formed integrally with the guide rail. Further, a slit for improving the spring property of the spring member may be provided in the vicinity of the guide rail where the spring member is formed.

  By comprising in this way, not only can a slide member be slidably supported by a guide rail, but it becomes possible to fix a light source. Moreover, the spring property of the spring member is improved by providing a slit in the vicinity of the spring member of the guide rail. Therefore, it is not necessary to provide separate parts such as a leaf spring, and it is possible to simplify the mounting structure and reduce the number of parts.

  The endoscope light source device may further include a lock member for restricting the movement of the slide member. Further, the lock member may be attached to the support board and bias the slide member in a direction orthogonal to the moving direction of the slide member. With such a configuration, it is possible to prevent the slide member and the light source from being displaced due to vibrations generated during transportation or the like.

  Further, the lock member may be one that engages with the slide member when the slide member slides to a predetermined position and restricts the movement of the slide member. With this configuration, when the slide member is slid to an appropriate position, the slide member is automatically locked. This eliminates the need for the operator to perform locking as a separate process, thus facilitating the work.

  The support board may have a notch portion for positioning the slide member, and the predetermined position may be a position where one end of the positioning portion abuts the notch portion. With this configuration, the slide member is appropriately positioned on the support board. Thereby, the light source positioned on the slide member is also appropriately positioned with respect to the support board.

  Further, the support board has a restricting portion that restricts the movement of the slide member, and one end portion of the positioning portion is in contact with the restricting portion to restrict the movement of the slide member. good. By comprising in this way, the sliding amount of a slide member can be restrict | limited and it can prevent falling out by jumping out from a guide rail.

  Furthermore, the slide member further has an engagement hole, and the support plate has a protrusion that engages with the engagement hole when the slide member is slid to a predetermined position. Frictional noise may be generated by engaging the hole and the protrusion. With this configuration, when the slide member slides to an appropriate position, it is possible to notify the operator to that effect with a click feeling.

  Therefore, according to the present invention, it is possible to provide a light source device for an endoscope that can realize a lamp mounting structure with a simple structure and that allows an operator to easily replace a light source lamp in a limited work space. Can do.

It is an external view of a processor in an embodiment of the present invention. It is an internal block diagram of the processor shown by FIG. It is a figure which shows the attachment structure of the turntable in embodiment of this invention. It is a figure which shows the attachment structure of the light source lamp and light source lamp in embodiment of this invention. It is a perspective view which shows the processor at the time of light source lamp replacement | exchange. It is a figure which shows the attachment structure of the light source lamp in embodiment of this invention. It is a figure which shows the state by which the light source lamp in embodiment of this invention was fixed to the turntable. It is a figure for demonstrating the fixed state of the light source lamp shown by FIG.

  Hereinafter, an endoscope light source device according to the present invention will be described with reference to the drawings.

  FIG. 1 is an external view of a processor 1 including an endoscope light source device according to the present invention. As shown in FIG. 1, the processor 1 is covered with a housing 100, and an opening 101 used for replacement of a light source lamp and the like to be described later, and an opening 101 are provided on the exterior side of the housing 100. A covering lid 102 is provided. The lid 102 is detachably attached to the housing 100 with a screw 111. Further, on the exterior front of the processor 1, a light guide connection portion 103 for connecting an endoscope light guide, an electric connection portion 104 for electrically connecting the endoscope to perform power supply and communication, and a user An operation panel 105 having various operation buttons for accepting operations, an indicator for displaying the operation status of the processor 1, the main power switch 106 of the processor 1, and the like are provided.

  FIG. 2 is an internal configuration diagram of the processor 1 shown in FIG. The processor 1 stores two light source lamps 201a and 201b for supplying illumination light to the endoscope 400, a turntable 202 to which each light source lamp is attached, and a light source lamp that is lit to store the heat above the limit temperature by air cooling. Is sent from the endoscope via the cooling fan 203 for preventing the power supply, the lamp power supply 204 for supplying power to each light source lamp, the panel control unit 205 for controlling the operation panel 105, and the electrical connection unit 104. An image processing circuit 207 for processing incoming images is provided. The above units are controlled by the control unit 206 and are supplied with power by a system power supply (not shown). An optical axis AX indicates an optical axis of a light guide (not shown) of the endoscope 400. Since the optical axis of the light guide serves as an index for positioning the light source lamp, the optical axis AX can be said to be the optical central axis of the processor 1.

  In the processor 1, the light source lamps 201 a and 201 b, the turntable 202, the cooling fan 203, the lamp power source 204, the panel control unit 205, and the control unit 206 constitute a light source unit 200 that supplies illumination light to the endoscope 400. Is done. The panel control unit 205, the image processing circuit 207, and the control unit 206 constitute an image processing unit 300.

  In the processor 1, the light source unit 200 supplies illumination light to the light guide of the endoscope 400 via the light guide connection unit 103. In addition, an image photographed by the endoscope 400 is supplied to the image processing unit 300 via the electrical connection unit 104. In the image processing unit 300, processing such as amplification and A / D conversion is performed on the video signal from the endoscope 400, and NTSC composite signal, Y / C separation signal (so-called S video signal), RGB separation signal, etc. The video signal is output to the monitor 208 connected to the processor 1. As a result, the subject image formed on the image sensor of the endoscope 400 is displayed on the monitor 208.

  As described above, in the present embodiment, the light source unit 200 and the image processing unit 300 are mounted in the single processor 1, and the panel control unit 205 and the control unit 206 are shared by the light source unit 200 and the image processing unit 300. The configuration to be adopted is adopted. However, the configuration is not limited thereto, and the light source unit 200 may be configured as a single light source device and independent from the processor 1.

  FIG. 3 is a perspective view showing a mounting structure of the turntable 202 in the light source unit 200. FIG. 3 is a view of the rotating plate 202 as viewed from the front panel side of the processor 1. In the following description, the direction parallel to the optical axis AX of the light guide is the optical axis direction, and the direction perpendicular to the bottom surface of the housing 100 is the vertical direction. The turntable 202 is a circular metal plate formed of stainless steel or the like.

  As shown in FIG. 3, the turntable 202 is rotatably attached to a turntable support member 120 fixed to a base 110 attached to the bottom surface of the housing 100. Specifically, a shaft 121 extending in the optical axis direction is provided at the center of the turntable 202, and the shaft 121 is attached to a bearing 123 provided on the turntable support member 120. Thereby, the turntable 202 is rotatable about the shaft 121 as a central axis. At this time, the turntable 202 is arranged so that a lamp mounting surface 202A described later is accurately perpendicular to the optical axis AX. Further, the turntable 202 is arranged at a position spaced from the light guide connecting portion 103 at an appropriate distance in the optical axis direction so that the condensing point of the light source lamp that is emitting light substantially coincides with the incident end of the light guide. The

  The turntable 202 is provided with openings 215a and 215b so as not to block the irradiation light from the light source lamp. In addition, the openings 215a and 215b are provided with positioning portions 216a and 216b (see FIG. 6) for attaching the light source lamp to the turntable 202, and notches serving as restricting portions 217a and 217b. Further, the rotating plate support member 120 is similarly provided with an opening 122. Then, one opening (for example, the opening 215a) of the turntable 202 is connected to the opening 122 so that the optical axis of illumination light from the light source lamp and the optical axis AX of the light guide of the endoscope coincide with each other. The turntable 202 is held in such a state as to face each other. At this time, the other opening (for example, the opening 215b) is disposed at a position retracted from the optical axis position of the light guide.

  As shown in FIG. 3, the light source lamps 201 a and 201 b are mounted side by side on a lamp mounting surface 202 </ b> A that is the surface opposite to the side on which the irradiation light is radiated in the rotating disk 202. In this embodiment, the light source lamp 201a is mounted at a position facing the opening 215a so that its own optical axis coincides with the optical axis AX of the ride guide, and the light source lamp 201b, which is a spare lamp, is mounted on the ride guide. It is attached at a position facing the opening 215b, which is a position retracted from the optical axis.

  Then, when the user operates the lamp switch on the operation panel 105, the lamp power source 204 is controlled by the control unit 206. The lamp power supply 204 supplies power only to the light source lamp 201a arranged on the optical axis AX, and thereby the light source lamp 201a is turned on. The turntable 202 is connected to a turntable drive mechanism 125 such as a motor via a gear or the like. When the light amount of the light source lamp 201a is reduced or turned off, the light source lamp 201a is retracted from the optical axis AX and the light source lamp 201b is rotated by rotating the turntable 202 by the turntable drive mechanism 125. Arranged on the optical axis AX. By such a rotation operation by the rotating disk drive mechanism 125, the light source lamp used for observation inside the body cavity can be efficiently switched in a short time.

  Next, the structure of the light source lamp 201a will be described with reference to FIG. The light source lamp 201 a includes a light emitting unit 211 and a bowl-shaped reflector 212 that covers the light emitting unit 211. The light emitting unit 211 uses a halogen lamp, which is a high-intensity white lamp, and light emitted from the light emitting unit 211 in a direction other than the front is formed inside the reflector 212. It is reflected by the concave reflecting mirror and collected toward the front. A pair of plug electrodes 213 protrudes from the rear end of the light source lamp 201a.

  A flange 212 a is formed at the open end of the reflector 212. The flange 212a is a portion formed in an annular shape that spreads outward from the peripheral edge of the reflector 212 in the radial direction. In addition, the front surface of the flange 212a (the surface on the light condensing point side of the light source lamp) is formed by a plane perpendicular to the optical axis of the light source lamp. Furthermore, a protrusion 214 such as a burr generated in the manufacturing process of the reflector 212 is formed on the flange 212a. Depending on the product, the protrusion 214 may be positively formed in the manufacturing process to serve as an index when the light source lamp 201a is attached. Since the light source lamp 201b has the same structure as the light source lamp 201a, the description thereof is omitted.

  Similarly, with reference to FIG. 4, a structure for attaching the light source lamp 201 a to the turntable 202 will be described. FIG. 4 is a view of the turntable 202 as seen from the lamp mounting surface 202A side. As shown in FIG. 4, in the present embodiment, the light source lamp 201 a locks the guide rail 220 fixed to the turntable 202, the slide member 230 slidably supported on the guide rail 220, and the slide member 230. It is attached to the turntable 202 by a locking member 240 for the purpose. Since the light source lamp 201b is attached to the turntable 202 with the same structure as the light source lamp 201a, description thereof is omitted. In the following description, the direction of sliding when removing the light source lamp 201a from the turntable 202 (the direction away from the center of the turntable 202) is referred to as “outward direction”, and the light source lamp 201a is attached to the turntable 202. The direction that is sometimes slid (the direction toward the center of the turntable 202) is referred to as the “inward direction”.

  The guide rail 220 is a part formed by processing a metal plate such as stainless steel, and includes a fixing portion 221 for fixing the rotating plate 202 and a guide portion 224 for guiding the slide member 230. The fixing portion 221 is a surface parallel to the lamp mounting surface 202 </ b> A provided at two locations in the vertical direction of the guide rail 220. The fixing portion 221 is provided with a total of four attachment holes 222, two at the top and two at the bottom. The guide rail 220 is fixed to the turntable 202 with screws or the like through the mounting holes 222.

  The guide portion 224 is a step-shaped guide groove that includes a surface bent vertically from the fixed portion 221 and a surface bent further vertically therefrom. The slide member 230 and the light source lamp 201a are sandwiched between the guide portion 224 and the lamp mounting surface 202A of the turntable 202.

  A U-shaped notch 225 is provided at a portion of the guide portion 224 facing the opening 215a. The notch 225 is for supporting the light source lamp 201 a that is slid together with the slide member 230, opens outward, and has a larger diameter than the reflector 212. Further, a biasing portion 226 for biasing the light source lamp 201a in the optical axis direction is provided at a portion of the guide portion 224 cut by the notch 225 (that is, a portion where the light source lamp 201a is supported). Yes. The urging portion 226 is formed by projecting a part of the guide portion 224 toward the center of the notch 225 and bending the projecting portion obliquely in a direction away from the turntable 202. The urging portion 226 is a spring member having a spring property with respect to the bent direction. A slit 228 is provided in the vicinity of the urging portion 226 of the guide portion 224. The slit 228 is a hole that is elongated in a direction perpendicular to the protruding direction of the urging portion 226. As will be described later, the slit 228 is provided to improve the spring property of the urging portion 226. The urging portions 226 and the slits 228 are respectively provided at two upper and lower portions in the vertical direction of the guide portion 224, and urge the flange 212 of the light source lamp 201a from the upper and lower portions in the optical axis direction.

  The slide member 230 is a component that is slidably supported by the guide rail 220, and is formed by processing a metal plate such as stainless steel. The slide member 230 is provided with an opening 232, a positioning portion 234, a locking portion 236, and an engagement hole 238. The opening 232 is a substantially circular through hole, and the diameter thereof is larger than the outer shape of the flange 212a of the light source lamp 201a. In addition, the opening 232 is formed at a position facing the opening 215 a of the turntable 202 in a state where the slide member 230 is slid to a predetermined position and properly accommodated in the guide rail 220.

  The positioning part 234 is formed by cutting and raising a part of the periphery of the opening part 232 so that the end part thereof is located on the same plane as the turntable 202. The end portion 234a of the positioning portion 234 has a substantially C shape that extends outward, and the other end portion 234b has a substantially U shape with the center portion cut off. . When the slide member 230 is slid outward, the end 234b comes into contact with the restricting portion 217a provided in the opening 215a of the turntable 202 when the slide member 230 is slid by a predetermined amount. . Accordingly, the outward movement of the slide member 230 is restricted, and the slide member 230 can be prevented from falling off from the guide rail 220.

  Furthermore, as shown in FIG. 4, when the end 234b comes into contact with the restricting portion 217a, a predetermined space 235 is formed between the end 234b and the restricting portion 217a. This space 235 is for positioning the projection 215 provided on the light source lamp 201a. Therefore, the space 235 is formed to have a size larger than that of the protrusion 214.

  On the other hand, when the slide member 230 is slid inward by a predetermined amount, the end portion 234a comes into contact with the positioning portion 216a provided in the opening 215a of the turntable 202. As a result, the inward movement of the slide member 230 is restricted, and the slide member 230 is positioned with respect to the turntable 202.

  The locking portion 236 is formed by vertically bending an end portion on the outer side of the slide member 230 in a direction away from the turntable 202. The locking portion 236 is fitted with a lock member 240 described later, and restricts the outward movement of the slide member 230. The locking portion 236 is also used as a handle when the operator slides the slide member 230.

  The engagement hole 238 is a through hole provided at an end portion on the inward side of the slide member 230. The engagement hole 238 is for engaging with the engagement protrusion 250 provided on the rotating disk 202 when the slide member 230 is slid inward by a predetermined amount. The operator can be notified that the slide member 230 has been slid to an appropriate position by the click feeling generated by the friction between the engagement hole 238 and the engagement protrusion 250.

  The lock member 240 is a leaf spring formed by bending a metal plate, and is formed to have elasticity in the optical axis direction. The lock member 240 is disposed in the vicinity of the end portion on the outer side of the guide rail 220, and one end (upper side in the vertical direction) is fixed to the turntable 202 with a screw or the like. Further, a notch 245 is provided at the other end (the lower side in the vertical direction) of the lock member 240. By fitting the notch 245 and the engaging portion 236 of the slide member 230 and urging the slide member 230 in the optical axis direction, the movement of the slide member 230 in the slide direction is restricted. Further, a knob 246 that is bent twice vertically from the surface provided with the notch 245 is formed at the outer end of the lock member 240.

  Next, a method for replacing the light source lamp 201a will be described with reference to FIGS. FIG. 5 is a perspective view of the processor 1 of this embodiment as viewed from the rear panel side. FIG. 5A shows a state in which the slide member 230 is slid outward and pulled out of the casing 100, and FIG. 5B is a diagram in which the slide member 230 is slid inward and the casing 100 is pulled out. The state stored in is shown.

  When replacing the light source lamp 201a by periodic replacement or the like, first turn off the main power switch 106 of the processor 1 for safety, then remove the screw 111 on the top of the lid 102 provided on the housing 100, Remove the lid 102. Then, a hand is inserted from the opening 101 and the knob 246 of the lock member 240 is lifted to release the lock of the slide member 230 by the lock member 240. As a result, the slide member 230 can slide.

  Then, when the slide member 230 is slid outward by holding the locking portion 236 of the slide member 230, the slide member 230 and the light source lamp 201a are pulled out of the housing 100 as shown in FIG. It is. In the present embodiment, as will be described later, the light source lamp 201 a is fixed to the turntable 202 by the guide rail 220. Therefore, the slide member 230 is slid outward and the light source lamp 201a is pulled out from the guide rail 220, so that the light source lamp 201a is also fixed. Thereby, the light source lamp 220 can be easily detached from the slide member 230.

  Next, a new light source lamp 201a is attached. FIG. 6 is a view of the turntable 202 as viewed from the front panel side. As shown in FIG. 6, first, the light source lamp 201 a is put into the opening 232 of the slide member 230, and a part of the flange 212 a comes into contact with the lamp mounting surface 202 </ b> A of the turntable 202. At this time, the light source lamp 201a is positioned with respect to the slide member 230 so that the protrusion 214 formed on the flange 212a enters the space 235 formed between the positioning portion 234 and the restricting portion 217a. At this time, the light source lamp 201 a is only positioned with respect to the slide member 230, and is not fixed to the slide member 230 or the turntable 202.

  Next, with the light source lamp 201a positioned with the slide member 230, the slide member 230 is slid inward. As a result, the upper and lower end portions of the slide member 230 and the upper and lower end portions of the flange 212a of the light source lamp 201a are guided by the guide portions 224 of the guide rail 220. At this time, if the protrusion 214 is not properly positioned in the space 235, the light source lamp 201a is inclined with respect to the lamp mounting surface 202A by the amount of the protrusion 214. In such a state, the light source lamp 201a does not enter the guide groove of the guide portion 224 and cannot be slid. As described above, when the protrusion 214 of the light source lamp 201a is not properly positioned, the light source lamp 201a is attached obliquely to the lamp attachment surface 202A by making the structure incapable of sliding. Can be prevented.

  On the other hand, when the slide member 230 is slid by a predetermined amount in a state where the light source lamp 201a is properly positioned, the end 234a of the positioning portion 234 comes into contact with the positioning portion 216a of the opening 215a. At this time, the slide member 230 and the light source lamp 201a are positioned with respect to the turntable 202. Thereby, as shown in FIG. 5B, the slide member 230 and the light source lamp 201 a are accommodated in the housing 100.

  FIG. 7 is a view of the rotating disk 202 in a state where the slide member 230 and the light source lamp 201a are positioned as seen from the lamp mounting surface 202A side. As described above, when the slide member 230 is slid to an appropriate position, the positioning portion 234 comes into contact with the positioning portion 216a of the turntable 202, and the locking portion 236 is a notch provided in the lock member 240. 245 is fitted. Then, the slide member 230 is urged by the lock member 240 in a direction (optical axis direction) orthogonal to the slide direction. Thereby, the movement of the slide member 230 in the slide direction is restricted, and the slide member 230 can be prevented from popping out.

  Further, when the slide member 230 is slid to an appropriate position, the engagement hole 238 of the slide member 230 engages with the engagement protrusion 250 of the turntable 202. Then, the operator can sensibly know that the slide member 230 has been slid to an appropriate position by a click feeling generated by friction when the engagement hole 238 engages with the engagement protrusion 250.

  Next, fixing of the light source lamp 201a will be described. FIG. 8 is a cross-sectional view for explaining a fixed state of the light source lamp 201a. As described above, when the slide member 230 is slid to the guide portion 224 of the guide rail 220, the upper and lower ends in the vertical direction of the slide member 230 and the flange of the light source lamp 201a are driven by the guide portion 224 and the rotating disk 202. 212a is sandwiched. At the same time, the curved surface portion of the reflector 212 is urged in the optical axis direction by the urging portion 226 of the guide rail 220. As a result, the light source lamp 201 a is fixed between the guide rail 220 and the turntable 202.

  Here, the slit 228 is provided in the vicinity of the urging portion 226 as described above. By providing the slit 228 in this manner, the portion between the urging portion 226 and the slit 228 can be easily bent. When a force is applied to the urging portion 226, not only the urging portion 226 but also a portion between the urging portion 226 and the slit 228 (a portion indicated by hatching in FIG. 8) is bent, Flexibility can be imparted to 226, and springiness can be improved. Thereby, the urging | biasing part 226 and the part between the urging | biasing part 226 and the slit 228 can be used as a leaf | plate spring. Therefore, even when the shape of the light source lamp is different, it is possible to appropriately fix the light source lamp by urging the curved surface portion of the light source lamp 201a by the urging portion 226 having a spring property. As a result, various light source lamps having different standard setting dimensions can be used for replacement.

  As described above, in the present embodiment, when the light source lamp 201a is attached, the worker simply performs the operation of sliding the light source lamp 201a with respect to the turntable 202 by simply sliding the light source lamp 201a with the slide member 230 positioned. In addition, the three operations of locking the slide member 230 can be performed simultaneously. Also, when removing the light source lamp 201a, the light source lamp 201a can be released by simply sliding the slide member 230 outward, and the light source lamp 201a can be easily removed. Thereby, it is not necessary to fix the light source lamp in a limited work space as in the prior art, and the light source lamp can be easily replaced with less effort.

  Further, in the present embodiment, the flange 212a of the light source lamp 201a is sandwiched by the guide portion 224 of the guide rail 220 and the turntable 202 from the upper and lower directions. In addition, the curved surface portion of the reflector 212 of the light source lamp 201a is urged in the optical axis direction by the urging portions 226 provided at two positions above and below the guide portion 224. Further, the movement of the slide member 230 in the sliding direction is restricted by the lock member 240. Thus, in the present embodiment, the light source lamp 201a is supported from multiple directions, so that it can be appropriately fixed to the turntable 202. For this reason, even when an impact or vibration is applied during transportation or the like, the position of the light source lamp can be prevented from shifting.

  Further, in the present embodiment, the urging portion 226 for urging the light source lamp 201a is formed in one piece with the guide rail 220 by bending a part of the guide portion 224. It is possible to have both functions of guiding the member 230 and fixing the light source lamp 201a. Further, since the spring property of the urging portion 226 is improved by providing the slit 228 in the vicinity of the urging portion 226, it is not necessary to provide another component such as a leaf spring. Furthermore, the slide member 230 is also formed with a simple structure including only bending and notches. By configuring as described above, it is possible to reduce the number of parts and the number of processing steps of each member in the mounting structure, and to have a simple structure.

  Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and various modifications can be made within the scope of the technical idea of the present invention. For example, in the above embodiment, a halogen lamp is used as the light source lamp. However, a high-intensity lamp such as a xenon lamp or a metal halide may be used. Furthermore, although the said embodiment is related with the attachment structure to the turntable using two light source lamps, this invention is not limited to this. For example, the present invention can also be applied to a case where one light source lamp is attached to the support member or three or more light source lamps are attached.

DESCRIPTION OF SYMBOLS 1 Processor 100 Case 200 Light source part 201a, 201b Light source lamp 202 Turntable 211 Light emission part 212 Reflector 212a Flange 220 Guide rail 230 Slide member 240 Lock member 300 Image processing part 400 Endoscope

Claims (10)

An endoscope light source device for supplying illumination light to an endoscope,
A light source;
A support plate for supporting the light source;
A guide rail and a spring member attached to the support board;
A slide member supported slidably on the guide rail,
The slide member has a positioning portion for positioning the light source,
By sliding the slide member to a predetermined position in a state in which the light source is positioned at the positioning portion and not fixed to the slide member, a part of the light source is moved to the spring member. An endoscope light source device, wherein the endoscope light source device is sandwiched between the support plate and fixed to the support plate .
  The endoscope light source device according to claim 1, wherein the slide member is slidable so that a part of the slide member protrudes outside a housing of the endoscope light source device.   The endoscope light source device according to claim 1, wherein the spring member is formed integrally with the guide rail. The endoscope light source device according to claim 3 , wherein a slit for improving the spring property of the spring member is provided in the vicinity of the guide rail where the spring member is formed.   The endoscope light source device according to claim 1, further comprising a lock member for restricting movement of the slide member. The lock member is attached to the support board,
The endoscope light source device according to claim 5, wherein the slide member is biased in a direction orthogonal to a moving direction of the slide member.   7. The lock member according to claim 5, wherein when the slide member is slid to the predetermined position, the lock member is fitted with the slide member and restricts the movement of the slide member. The light source device for endoscopes described in 1. The support board has a notch for positioning the slide member,
The internal view according to any one of claims 1 to 7, wherein the predetermined position is a position at which one end of the positioning portion of the slide member comes into contact with the notch portion. Mirror light source device. The support board has a restricting portion that restricts movement of the slide member,
The endoscope according to any one of claims 1 to 8, wherein the movement of the slide member is restricted by one end of the positioning part coming into contact with the restriction part. Light source device. The slide member further has an engagement hole,
The support plate has a protrusion that engages with the engagement hole when the slide member is slid to the predetermined position;
The endoscope light source device according to any one of claims 1 to 9, wherein a frictional sound is generated by the engagement of the engagement hole and the protrusion.

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