JP2006270938A - Fixed mechanism for mobile unit of information processing apparatus, information processing apparatus and image reading apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fixed mechanism for a mobile unit that suppresses reduction of sealing within a frame of an information processing apparatus. <P>SOLUTION: The present invention relates to a fixed mechanism for a carriage of the image reading apparatus including an exterior cover 16, an apparatus frame 15 disposed within the exterior cover 16 and a full-rate carriage 4 moving within the apparatus frame, and a hook member 21 for fixing is provided for temporarily fixing the full-rate carriage 4. If the hook member 21 for fixing passes through a wall surface of the exterior cover 16 and a side wall 15a of the apparatus frame 15 and passes through or is in contact with a wall surface of the full-rate carriage 4, the full-rate carriage 4 is fixed within the apparatus frame 15. If the hook member 21 for fixing is released from passing through or contact with the wall surface, the hook member 21 for fixing is movable within the apparatus frame 15 and the hook member 21 for fixing is in a state to pass through the exterior cover 16 at least. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In an information processing apparatus such as an image reading apparatus such as a flatbed scanner, the present invention fixes a moving unit such as a carriage equipped with a mirror, a light source, and the like to the apparatus frame when the apparatus is transported. The present invention relates to a mechanism for fixing a moving unit of an information processing apparatus, an information processing apparatus, and the like.

  In a flatbed scanner, as a reading member that reciprocates along the lower surface of the platen in order to read an image of a document set on the platen, a full-rate carriage that combines a lamp and a mirror, and in conjunction with the full-rate carriage It is provided in combination with a moving half rate carriage. Then, the light applied to the image surface of the original is reflected by a plurality of mirrors, imaged on the CCD through the lens, and output from the CCD to an image forming apparatus that connects image information as an electrical signal. For example, when the apparatus to which the scanner is connected is a facsimile apparatus, the image information is transmitted through a telephone line. In a copying machine or the like, a recording sheet is created based on a signal output from the scanner.

  In the scanner, the carriage reciprocating along the lower surface of the platen needs to accurately adjust the distance between the mirrors and the distance between the mirrors and the lens. Therefore, when the image reading apparatus is shipped from the factory, in order to prevent the impact at the time of transportation from being applied, damage to the components disposed in the carriage and its peripheral part, and the positional relationship from being distorted. The carriage is fixed to the apparatus frame.

For example, in Patent Document 1, as shown in FIG. 12, two carriages 104 and 106 arranged in the image reading apparatus are provided with flanges 125 and 130 protruding from each other, and holes provided in the side plate 121 of the apparatus frame 120. It has been proposed that a fixing screw 135 is attached from 121a and positioned and fixed to each other via a hole 131 and a screw hole 126 provided in each flange 125, 130. The fixing screw 135 is provided with a head 136, a large-diameter portion 137, and a screw portion 139 at the tip, and the fixing screw 135 can be inserted into a hole penetrating a plurality of members and fixed.
JP-A-11-164063

  However, in the above method, when the carriages 104 and 106 are unfixed, the fixing screw 135 is removed, so that the hole 121a of the apparatus frame 120 remains as an opening, reducing the hermeticity in the apparatus frame 120, and the apparatus There is a possibility that dust or the like may enter from the hole 121a of the frame 120 and adversely affect the reading accuracy.

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to provide an image reading apparatus capable of suppressing a decrease in hermeticity in an apparatus frame.

In order to achieve the above object, a first aspect of the present invention provides a moving unit of an information processing apparatus having a casing, a device frame arranged in the casing, and a moving unit that moves in the device frame. A fixing mechanism,
A fixing pin for temporarily fixing the moving unit;
When the fixing pin penetrates the wall surface of the housing and the wall surface of the device frame and penetrates or contacts the wall surface of the moving unit, the moving unit is fixed in the device frame;
When the fixing pin is released from penetrating or contacting the wall surface of the moving unit, the moving unit is movable in the device frame, and the fixing pin is in a state of penetrating at least the housing. This is a mechanism for fixing a moving unit of an information processing apparatus.

In the second aspect of the present invention, when the moving unit is fixed by the fixing pin,
The fixing pin is a moving unit fixing mechanism of the information processing apparatus according to the first aspect of the present invention, which is movable in the axial direction when rotated at a fixed angle at the fixed position of the moving unit. is there.

Further, according to a third aspect of the present invention, the fixing pin has a protrusion on the surface thereof.
When the fixing pin is at an angle other than a predetermined rotation angle, the protrusion comes into contact with the device frame and / or the inner wall of the moving unit, thereby being fixed with respect to the axial direction thereof. It is a fixing mechanism of the moving unit of the information processing apparatus of the second present invention.

The fourth aspect of the present invention includes an elastic member that is provided in the casing and applies an urging force that is directed outward from the casing to the fixing pin.
The moving unit fixing mechanism of the information processing apparatus according to the second aspect of the present invention is such that penetration or contact between the fixing pin and the wall surface of the moving unit is released at the predetermined angle by the biasing force of the elastic member.

According to a fifth aspect of the present invention, the fixing pin seals all or part of a through hole through which the fixing pin provided in the housing and the apparatus frame passes at a predetermined position in the axial direction. Having a sealing surface to stop,
The predetermined position is a moving unit fixing mechanism of the information processing apparatus according to the first aspect of the present invention, which is a position when the moving unit is in a movable state.

  According to a sixth aspect of the present invention, the device frame is provided around a through hole through which the fixing pin passes, and the rotation of the fixing pin is stopped at the predetermined angle at which the moving unit can move. This is a mechanism for fixing the moving unit of the information processing apparatus according to the second aspect of the present invention, comprising a rotation restricting member that restricts the movement.

  The seventh aspect of the present invention is the moving unit fixing mechanism of the information processing apparatus according to the sixth aspect of the present invention, wherein the fixing pin and the rotation restricting member are made of resin.

Further, according to an eighth aspect of the present invention, the rotation restricting member includes at least one locking portion provided to correspond to the protrusion of the fixing pin and provided to contact the protrusion.
The fixing pin is a fixing mechanism of the moving unit of the information processing apparatus according to the sixth aspect of the present invention, which is movable in the axial direction at a position where the protrusion is in contact with the locking portion.

The ninth aspect of the present invention further includes a second moving unit that moves in the device frame,
The second moving unit is fixed indirectly by being sandwiched between the device frame and the moving unit when the moving unit is fixed. The fixing mechanism.

According to a tenth aspect of the present invention, the information processing apparatus is an image reading apparatus,
The moving unit is a carriage and is a moving unit fixing mechanism of the information processing apparatus according to any one of the first to ninth aspects of the present invention.

The eleventh aspect of the present invention comprises a housing,
A device frame disposed within the housing;
A moving unit moving in the device frame;
An information processing apparatus comprising the moving unit fixing mechanism of the information processing apparatus according to any one of the first to tenth aspects of the present invention.

  According to a twelfth aspect of the present invention, there is provided a carriage that moves along a lower surface of a platen on which an original is set, an apparatus frame that is disposed inside the housing and includes a guide member that guides the movement of the carriage, and an exterior cover. In the image reading apparatus, a hole is provided in each of the positions where the carriage, the apparatus frame, and the outer cover are opposed to each other, and a fixing collar member is inserted into the outer cover, the apparatus frame, and the hole of the carriage from outside the apparatus. The carriage can be fixed by hooking a hook provided on the fixing hook member to the apparatus frame and the carriage, and the fixing hook member is attached to the exterior cover even after the carriage is released from being fixed. The image reading apparatus is attached.

  A thirteenth aspect of the present invention includes a second reading carriage that moves in conjunction with the carriage, and the second carriage is fixed between the carriage and a side wall of the apparatus frame by fixing the carriage. The image reading apparatus according to the twelfth aspect of the present invention, which is indirectly fixed at the position.

  In the present invention as described above, for example, the fixing saddle member is mounted without being detached from the exterior cover even after the carriage is released from being fixed. Intrusion of dust or the like from the hole can be prevented. In addition, since the fixing saddle member can be used again when transporting or moving the device next time, it should not be thrown away as waste, but should remain attached to the exterior cover. Since there is no risk of loss or storage problems, recyclability is improved. In addition, since the fixing saddle member can be integrally formed with a resin, the material separation work is unnecessary, and the recyclability is excellent.

  According to the present invention, it is possible to suppress a decrease in hermeticity in the apparatus frame.

  The best mode for carrying out the present invention will be described below with reference to the drawings.

(Embodiment 1)
The image reading apparatus according to the first embodiment of the present invention will be described according to the illustrated example. An image reading apparatus 1 shown in FIG. 1 is configured as an apparatus that can be used as a document reading unit of a facsimile machine, a reading unit of a copying machine, or a scanner for a personal computer, and can be used for any apparatus to which the image reading apparatus 1 is connected. Thus, image information as a digital signal is transmitted from the CCD. In the image reading apparatus 1 shown in FIG. 1, the platen 3 is arranged on the upper part of the apparatus frame 15 so that the image surface of the document is set downward. For the document set on the platen 3, the elastic body 9a of the platen cover 9 placed on the upper surface of the document is pressed, and the image surface of the document is brought into close contact with the platen 3 so that it can be read.

  Inside the apparatus frame 15 on which the platen 3 is arranged, the lamp 5 and the mirror m1 are arranged in the same manner as a general image reading apparatus, the full rate carriage 4 as a sub-scanning carriage, and the two mirrors m2 and m3. The half-rate carriage 6 having the above-described arrangement is movably provided. The two carriages 4 and 6 are driven via wires 12 and 13 wound around pulleys 10 and 11 provided on one shaft, and the diameters of the two pulleys 10 and 11 are 2: 1. In this way, the speed of the half-rate carriage 6 is set to half the speed of the full-rate carriage 4. In the reading device 2, the full rate carriage 4 that moves at a constant speed in the length direction of the document and the half rate carriage 6 that moves at half the speed of the full rate carriage 4 are reciprocally moved in conjunction with each other, and the platen 3. The image of the original placed on top is illuminated by a lamp. Then, the reflected light is reflected through mirrors m1, m2, and m3 provided on the two carriages, and the reflected light from the mirror m3 is imaged on the CCD 8 by the lens 7 to convert the optical information into an electrical signal. And output it to the connected device as a digital signal.

  In the driving device for driving the two carriages 4 and 6, a stepping motor is used to drive the coaxial pulleys 10 and 11, and a pulse corresponding to the rotational speed of the motor is sent to the motor driver. To the motor. The full-rate carriage 4 is moved by a distance corresponding to the length of the document, and the reading speed of the full-rate carriage 4 can be arbitrarily set. The half-rate carriage 6 is half the distance at half the speed of the full-rate carriage 4. Move. Further, after the full-rate carriage 4 has moved by a distance corresponding to the length of the document, the motor is driven in the reverse direction by the number of pulses applied at the time of reading so that the two carriages 4 and 6 are returned to their original positions. .

  In the image reading apparatus, fixing means as shown in FIGS. 2 and 3 can be used to fix the carriage when the apparatus is transported. As shown in FIG. 2, the full-rate carriage 4 has a flange 14 erected on a side portion in a direction orthogonal to the moving direction. In the present embodiment, the two carriages 4 and 6 are moved along the apparatus frame 15 provided with a guide member such as a guide rail disposed inside the casing. Therefore, the flange 14 provided on the carriage 4. A part of the guided member that moves along the guide rail can be used as a fixing member. The two carriages, the full-rate carriage 4 on which the mirror m1 is arranged and the half-rate carriage 6 on which the mirror m2 is arranged, are moved to one end of the apparatus frame 15 at the origin position of the image reading operation. As shown by a broken line in FIG.

  Therefore, as shown in FIGS. 2 and 3, holes 17 and 18 are provided to linearly pass through the flange 14 and the side wall 15 a of the apparatus frame 15 at the position where the two carriages 4 and 6 are closest to each other. Furthermore, the end face of the cylindrical portion 19 formed so that the exterior cover 16 is recessed inward is also provided with a hole 20 that penetrates linearly, and is fixed by a single fixing collar member 21 and a compression spring 22. It is configured to be able to.

  Here, as shown in FIG. 3, the holes 17 and 18 provided in the flange 14 and the side wall 15a of the apparatus frame 15 are provided as small-diameter round holes, and the hole 20 provided in the cylindrical portion 19 is provided as a large-diameter round hole. Yes. A pair of piercing portions 17a and 18a provided in a straight line with a predetermined width and length so as to be connected to the holes 17 and 18 are provided at positions opposed to the upper and lower sides of the holes 17 and 18, respectively. ing.

  In the above configuration, the image reading apparatus 1 corresponds to the information processing apparatus and the image reading apparatus of the present invention. The outer cover 16 corresponds to the casing and outer cover of the present invention, the apparatus frame 15 corresponds to the apparatus frame of the present invention, and the full rate carriage 4 provided with the flange 14 corresponds to the moving unit and carriage of the present invention. The half-rate carriage 6 corresponds to the second moving unit and the second reading carriage of the present invention. The fixing collar member 21 corresponds to the fixing pin and the fixing collar member of the present invention.

  Next, FIG. 4 is a perspective view of the fixing collar member 21, FIG. 5 is a plan view of the fixing key member 21, and FIG. 6 is a sectional view taken along line xx in FIG. It is arrow yy sectional view (b). The fixing saddle member 21 is integrally formed of resin. Therefore, the material separation work is unnecessary and the recyclability is excellent.

  The fixing collar member 21 has a disk-shaped collar part 23 at one end part in the longitudinal direction, and a plate-like knob part 24 is integrally formed on one end surface of the collar part 23. As shown in FIG. 6A, the other end surface of the flange portion 23 is orthogonal to form a cross shape in cross section, and its outer edge forms the same circumference (indicated by a one-dot chain line in FIG. 6A). A circular cross column part 25 composed of two columns 26 and 27 is formed. The diameter of the circular cross column portion 25 (the diameter of the circle formed by the outer edges of the columns 26 and 27) is set to be substantially the same as the diameter of the hole 20 (see FIG. 3) of the cylindrical portion 19 of the exterior cover 16.

  At the other end of the circular cross column part 25, a disk part 30 is formed which is selected to have the same diameter as the circle (the outer edges of the columns 26 and 27 are formed). One column 26 is provided with a slit 28 extending through a predetermined length from the other end. This imparts radial elasticity to the outer edge of the column 26. Further, a substantially right-angled triangular protrusion 29 having a tapered inclined surface is formed on the outer edge portion of the column 26 and located at the central portion in the longitudinal direction of the slit 28.

  As shown in FIG. 6B, the other end surface of the disk portion 30 is orthogonal to form a cross-shaped cross section, and a non-circular cross column portion composed of two columns 32 and 33 whose outer edges are concentric with each other. 31 is formed. The length of one column 32 in the radial direction is set to be longer than that of the other column 33, and the column 32 is cut so that the base end (root) portion and the tip end portion of the column 32 have a constriction. Notches 34 and 35 are provided, respectively, and the outer edge of the constricted portion has the same circumference as the circle formed by the outer edge of the other pillar 33 (shown by a one-dot chain line in FIG. 6B). The diameter of this circle is set to be approximately the same as the diameter of the hole 17 (see FIG. 3) of the flange 14 and the hole 18 (see FIG. 3) of the side wall 15a of the apparatus frame 15. Further, a disk portion 37 having the same diameter as the circle is formed integrally with the columns 32 and 33 at the constricted portion of the notch 35 of the column 33, and the disk portion 37 rotates the fixing saddle member 21. At the same time, it is positioned in the hole 17 of the flange 14 and plays a role of receiving rotation.

  And the protrusion 36 is provided in the base end part of the longitudinal direction of the pillar 33 in the position separated from the other end surface of the disk part 30 by the distance equivalent to the thickness of the side wall 15a (refer FIG. 3) of the apparatus frame 15. The protrusion 36 plays a role of positioning with respect to the side wall 15a when the pillar 33 rotates when the fixing collar member 21 is rotated. In the above configuration, the pillar 33 corresponds to the protrusion of the present invention.

  As shown in FIG. 5, a first flange 32a is formed at the edge of the column 32 facing the notch 34, and a second flange 32b is formed at the edge of the column 32 facing the notch 35. ing.

  As shown in FIGS. 6A and 6B, the column 26 of the circular cross column portion 25 and the column 32 of the non-circular cross column portion 31 overlap each other in the longitudinal direction. 27 and the column 33 of the non-circular cross column 31 overlap each other in the longitudinal direction. As shown in FIG. 5, the knob 24 overlaps the column 26 of the circular cross column 25 and the column 32 of the non-circular cross column 31 in the longitudinal direction. Accordingly, when the knob portion 24 is held in the vertical direction, the column 26 of the circular cross column portion 25 and the column 32 of the non-circular cross column portion 31 are oriented in the vertical direction, and the column 27 of the circular cross column portion 25 and The column 33 of the non-circular cross column portion 31 is oriented in the horizontal direction (see FIG. 7A). On the other hand, when the knob portion 24 is held in the horizontal direction, the column 26 of the circular cross column portion 25 and the column 32 of the non-circular cross column portion 31 are oriented in the horizontal direction, and the column 27 of the circular cross column portion 25 and The column 33 of the non-circular cross column portion 31 is oriented in the vertical direction (see FIG. 7B).

  As shown in FIG. 2, the fixing rod member 21 configured as described above has a knob 24 in the vertical direction, and together with the compression spring 22, the hole 20 of the cylindrical portion 19 of the exterior cover 16 and the device frame 15. It is mounted so as to be inserted into the hole 18 of the side wall 15a.

  At this time, the protrusion 29 (see FIG. 4) contacts the edge portion of the hole 20 on the inner surface of the end wall 19a of the cylindrical portion 19, but the protrusion 29 has a tapered shape. Then, the projection 29 slides on the edge portion of the hole 20 and moves while elastically deforming in the center direction, and can be securely attached by returning elastically when it goes out of the cylindrical portion 19. it can. Further, since the knob portion 24 is held in the vertical direction, the column 32 of the non-circular cross column portion 31 is oriented in the vertical direction. Is inserted so as to fit into the through hole 18a of the hole 18 in the side wall 15a of the apparatus frame 15.

  The compression spring 22 disposed in the cylindrical portion 19 is positioned between the inner surface of the end wall 19a of the cylindrical portion 19 and the other end surface of the flange portion 23 (see FIG. 4) of the fixing flange member 21, and is a fixing flange member. This is urged in the direction in which 21 is pulled out, that is, in the direction from the exterior cover 15 toward the outside, but the projection 29 is brought into contact with the outer surface of the end wall 19a of the cylindrical portion 19 to prevent it from coming off. (See FIG. 7 (c)). The compression spring 22 corresponds to the elastic member of the present invention.

  When the fixing collar member 21 thus mounted is used, first, the full-rate carriage 4 and the half-rate carriage 6 are moved to the closest position, and then fixed as shown in FIG. Hold the barbed member 21 with the knob 24 in the vertical direction, and insert it as shown by the arrow A until the other end surface of the disk portion 30 comes into contact with the side wall 15 a of the apparatus frame 15. At this time, since the knob portion 24 is held in the vertical direction, the column 32 of the non-circular cross column portion 31 is oriented in the vertical direction, and the longitudinal ends of the columns 32 and 33 of the non-circular cross column portion 31 are aligned. Is inserted so that the pillar 32 fits into the pierced portion 17 a of the hole 17 of the flange 14.

  Then, in the non-circular cross column 31, the constriction due to the notch 34 of the column 32 is located in the hole 18 of the side wall 15 a of the apparatus frame 15, and the constriction due to the notch 35 of the column 32 is located in the hole 17 of the flange 14. And can be rotated.

  Therefore, as shown by an arrow B in FIG. 7A, the knob portion 24 is twisted by 90 ° in the clockwise direction to rotate the non-circular cross column portion 31 so that the positions of the columns 32 and 33 are switched. Then, a force is applied to the fixing collar member 21 by the urging force of the compression spring 22, but as shown in FIG. 7B, the first and second collar portions 32a and 32b of the column 32 are connected to the apparatus frame. The flange 14 is respectively hooked on the side wall 15a that hits the inner wall 15 and the flange 14 that hits the inner wall of the carriage 4, and the flange 14 is positioned in three directions, up, down, left, right, and rear, with respect to the side wall 15a of the apparatus frame 15. Can be fixed firmly. At this time, the half-rate carriage 6 is positioned and positioned between the full-rate carriage 4 and the side wall 15b of the apparatus frame 15 as shown in FIG. The half-rate carriage 6 is indirectly fixed by being fixed to the apparatus frame 15.

  Then, after packing the image reading apparatus 1 in the state shown in FIG. 7B and transporting it to the installation place, unpacking and twisting the knob 24 24 90 degrees counterclockwise as shown by arrow C again The position of the pillar 32 and the pillar 33 is exchanged by rotating the non-circular cross pillar 31. Then, as shown in FIG. 7C, the pillars 32 of the non-circular cruciform pillar portion 31 are oriented in the vertical direction, and a force is applied in a direction to come out from the fixing collar member 21 by the urging force of the compression spring 22, The longitudinal ends of the pillars 32 and 33 of the circular cross pillar part 31 pass through as shown by an arrow D so that the pillar 32 fits into the pierced part 17 a of the hole 17 of the flange 14. As a result, the full-rate carriage 4 is released from the restraint on the apparatus frame 15, and the half-rate carriage 6 can also move freely. Further, since the carriages 4 and 6 are set to the origin positions, they can be used immediately without adjusting the mutual positions of the carriages 4 and 6.

  At this time, the fixing collar member 21 is not detached from the exterior cover 16 by the projection 29 of the column 26 of the circular cross column 25 having abutment with the end wall 19a of the cylindrical portion 19 of the exterior cover 16, as shown in FIG. As shown in c), the collar portion 23 is positioned so as to close the opening 38 of the cylindrical portion 19 of the exterior cover 16. Further, the disk portion 37 is fitted into the hole 18 of the side wall 15a of the device frame 15 to seal the side wall 15a. As a result, the deterioration of the hermeticity inside the device frame 15 is suppressed, and entry of dust and the like from the hole 18 of the device frame 15 can be prevented. Further, since the opening 38 does not occur, it is possible to maintain the aesthetic appearance of the apparatus. In addition, the collar part 23 and the disk part 37 are equivalent to the sealing surface of this invention. In addition, although the fixing saddle member 21 is configured to seal the exterior cover 16 and the side wall 15a, it does not have to be completely sealed. The sealing may be performed to the extent that dust can be prevented from entering from the outside by the fixing collar member 21.

  Further, since the fixing gutter member 21 can be used again when the apparatus is transported or moved next time, the fixing gutter member 21 is not discarded as waste and is left attached to the exterior cover 16. In this way, there is no risk of loss or storage problems, so recyclability is improved.

  In the first embodiment of the present invention, the flange 14 provided to protrude from the side of the carriage can be a member that slides on a guide rail or the like. It is also possible to configure by integrally mounting. Further, the vertical relations of the flanges of the two carriages fixed inside the apparatus frame can be arbitrarily set.

  In the first embodiment, the fixing collar member 21 is described as passing through the hole 17 of the flange 14. However, the flange 14 does not have a hole and is formed as a recess or a plane. Also good. The operation of the carriage 4 may be fixed by fitting or contacting the tip of the fixing collar member 21 to the recess. In short, the hooking operation by the fixing pin and fixing hook member of the present invention is not limited by the configuration on the carriage and moving unit side.

(Embodiment 2)
The image reading apparatus according to the second embodiment of the present invention will be described according to the illustrated example.

  In the image reading apparatus 1 shown in FIG. 1, a hole 20 is opened in the exterior cover 16 and a hole 18 is directly formed in the side wall 15a of the apparatus frame 15 as a through hole, and a fixing collar member 21 is inserted therein. The full rate carriage 4 is fixed so as not to move by passing through the hole 17 of the flange 14 of the full rate carriage 4.

  On the other hand, in the present embodiment, instead of directly making a hole in the side wall 15a of the apparatus frame 15, a rotation restricting member that is provided with a hole through which the fixing saddle member 21 passes and restricts the rotation of the fixing saddle member 21 is provided. It is characterized by having.

  FIG. 8 is a schematic configuration diagram of an image reading apparatus according to the second embodiment. For the sake of explanation, the configuration of the exterior cover 16 and the compression spring 22 is shown in a omitted state. As shown in the drawing, the side wall 15 a of the device frame 15 is provided with a rotation restricting member 40 having a through hole. The fixing collar member 21 is connected to the device frame 15 via the rotation restricting member 40. It is configured to reach the full rate carriage 4 arranged on the inner side. In addition, in the figure, the same code | symbol is attached | subjected to FIG. Further, in the present embodiment, the fixing collar member 21 is configured to include a screw portion 24b in which a screw hole 24a is opened instead of the knob portion 24.

  Next, FIGS. 9A and 9B are configuration diagrams of the rotation restricting member 40, respectively. FIG. 9A is a view as seen from the outside of the side wall 15a of the apparatus frame 15, that is, the surface into which the fixing saddle member 21 is inserted, and FIG. 9B is the inside of the side wall 15a, ie, the fixing saddle. It is the figure seen from the surface where the front-end | tip of the member 21 is exposed.

  As shown in FIG. 9A, the rotation restricting member 40 includes a circular recess 41 formed in accordance with the outer dimensions of the disk portion 30 of the fixing collar member 21, and a hole opened in the bottom surface of the recess 41. 18 and an opening 42 (shown by a meshed line portion in the figure) corresponding to the shape of the pierced portion 18a. Therefore, as shown in FIG. 8, the inserted fixing saddle member 21 penetrates the device frame 15 with the disk portion 30 fitted in the recess 41.

  Next, as shown in FIG. 9B, the rotation restricting member 40 is an intermediate portion having a locking portion 43 provided around the opening portion 42, a first bottom surface portion 44, and slopes 47 whose both ends are inclined. A portion 45 and a second bottom surface portion 46 are provided. Corresponding to the arrangement of the pillars 32 and 33 of the fixing saddle member 21, the above-described portions are provided in pairs so that each of them is point-symmetric with respect to the center of the opening 42.

  Further, with reference to the main surface of the concave portion 41, the thickness of the locking portion 43 (the height of the wall portion 48) h1, the thickness h2 of the first bottom surface portion 44 and the second bottom surface portion 46, and the maximum thickness of the intermediate portion 45. There is a relationship of h1> h3> h2 with the upper thickness h3. Further, the thickness h2 of the first bottom surface portion 44 and the second bottom surface portion 46 is larger than the distance l of the first flange portion 32a of the column 32 of the fixing flange member 21 shown in FIG. 10 from the disk portion 30a. Make it bigger.

  In the above configuration, the rotation restricting member 40 corresponds to the rotation restricting member of the present invention, and the locking portion 43 corresponds to the locking portion of the present invention.

  The operation of the present embodiment having the above configuration will be described with reference to FIGS. As shown in the schematic diagram of FIG. 10, as in the first embodiment, a fixing saddle member 21 is inserted from the outside. At this time, from the state shown in FIG. 10, the fixing saddle member 21 is rotated by 90 ° with respect to the insertion direction (axial direction), and the column 32 is inserted into the opening 42 in a state where it coincides with the opening 42. The recessed part 41 and the disk part 30 contact | abut, and the fixing collar member 21 is not inserted inside any more. In FIG. 10, unlike the example shown in the first embodiment, the fixing collar member 21 has a configuration in which the protrusion 36 and the disk portion 37 are omitted.

  Next, in a state where it is inserted into the opening portion 42, the fixing collar member 21 can be rotated by an operation from the screw portion 24b. At this time, since the height h3 of the intermediate portion 45 provided inside the rotation restricting member 40 is smaller than the distance l from the disk portion 30a of the first flange portion 32a of the column 32, the fixing flange member 21 is intermediate. Although the height h1 of the wall portion 48 of the locking portion 43 is greater than the distance l from the disk portion 30a of the first flange portion 32a of the column 32, the engagement with the column 32 is possible. The wall portion 48 of the stop portion 43 comes into contact. Therefore, the fixing saddle member 21 cannot rotate beyond the locking portion 43.

  FIG. 11 shows a state in which the fixing saddle member 21 is fully rotated to the right in the drawing from the time of insertion. Since the locking part 43 is provided point-symmetrically with respect to the center of the opening part 42, the rotation of the fixing collar member 21 is restricted within an angle range of 90 ° from the insertion position.

  Accordingly, at the time of insertion, the column 32 is adjacent to one of the pair of locking portions 32a, and therefore cannot be rotated leftward from the wall portion 48, and only the right side is the wall portion 48a of the pair of other locking portions 32b. It can only be rotated up to the point where it touches. In the state shown in FIG. 11, since the pillar 32 and the first bottom surface portion 44 are in contact with each other, the fixing collar member 21 cannot be pulled out, so that the full rate carriage 4 (not shown) on the inside is fixed. The state is realized.

  As described above, in the first embodiment, the fixing collar member 21 rotates freely in a state of being inserted into each hole, whereas in the present embodiment, the fixing collar member 21 includes It is possible to operate so that the full rate carriage 4 is stably fixed at a point where the rotation cannot be performed any more by rotating only in the rotatable direction from the insertion position.

  As a result, the user or a serviceman who installs and inspects the apparatus does not need to visually check the rotation position of the fixing saddle member and rotates the fixing saddle member 21. It can be easily grasped.

  Furthermore, in the present embodiment, the column 32 of the fixing rod member 21 is always attached outwardly by the action of the compression spring 22, that is, in the direction in which the fixing rod member 21 comes out of the opening 42. Since the force is received, when moving the mountain-shaped intermediate portion 45, when moving the slopes 47 at both ends, the fixing saddle member 21 is moved back and forth in the insertion direction by a distance (h3-h2). The click sound generated at this time or the response transmitted through the fixing saddle member 21 allows the user or service person to grasp the rotation operation of the fixing saddle member 21 more clearly.

  In the above embodiment, it is desirable that the rotation restricting member 40 be made of resin. As described in the first embodiment, the fixing saddle member 21 is made of resin, but the device frame 15 is generally made of metal. At this time, as in the first embodiment, when the hole 18 or the like is directly opened in the side wall 15a, when the edge of the hole 18 and the column 32 come into contact with each other by the rotation of the fixing rod member 21, the column 32 is scraped, Causes of chips entering the full-rate carriage 4 and the half-rate carriage 6 to adhere to the lamps 5, mirrors m1, m2, etc., or deposit on the guide rails of the apparatus frame 15 to prevent accurate movement of each carriage. There is a fear. Such a problem arises according to the accuracy of the opening of the hole 18, the processing technique, and the design.

  On the other hand, by forming the opening 42 with the rotation restricting member 40 made of a soft resin, it is possible to prevent the fixing collar member 21 from being damaged and to prevent generation of scraps.

  In the above embodiment, the locking portion 43, the first bottom surface portion 44, the intermediate portion 45, and the second bottom surface portion 46 are all point-symmetric with respect to the center of the opening 42. Although the configuration is provided, this is in accordance with the configuration of the fixing rod member 21 in which the pillars 32 are formed in point symmetry. In the example shown in FIG. 11, each portion may be provided one by one. In this case, the area of each part is doubled and the rotatable angle of the fixing collar member 21 is 180 °. Moreover, it is good also as a structure provided 3 or more corresponding to arrangement | positioning of the pillars 32 and 33 of the anchoring member 21. FIG. In this case, the rotation angle of the fixing saddle member is regulated to be shorter than 90 °.

  Further, in each of the above embodiments, the present invention has been described as an image reading apparatus including a fixing mechanism that fixes each carriage. However, the fixing mechanism of the moving unit of the information processing apparatus of the present invention is as follows. The present invention is not limited by the specific configuration of the image reading device such as the platen 3, the pulleys 10, 11 and the CCD 8, and may be realized by any image reading device.

  In each of the above embodiments, the present invention has been described as being realized in an image reading apparatus. However, the information processing apparatus of the present invention is not limited to an image reading apparatus, and includes a housing, Any device that has a device frame disposed inside the housing and a moving unit that moves within the device frame and that needs to be temporarily fixed in the device frame is limited to its use and purpose is not. For example, the moving unit of the present invention may be a carriage having an inkjet printer head or ink cartridge, instead of a carriage having an optical system of an image reading apparatus. It may be a carriage for an electric stapler. Further, it may be realized as an optical pickup such as an optical disk device or a laser printer.

  The present invention as described above has an effect that it is possible to suppress a decrease in sealing performance in the apparatus frame, and when used in an image reading apparatus, a document reading section of a facsimile machine or a reading section of a copying machine. It can be used as a scanner for a personal computer.

It is explanatory drawing which shows the structure of the image reading apparatus by Embodiment 1 of this invention. It is explanatory drawing (perspective view) which crushes and shows a part of exterior cover in order to demonstrate the example of fixation of the carriage by Embodiment 1 of this invention. It is explanatory drawing explaining the relationship of the hole provided in the flange of each Embodiment by 1st Embodiment of this invention, an apparatus frame, and an exterior cover, and each member. It is a perspective view of an example of the fixation collar member by Embodiment 1 of this invention. It is a top view of the collar member for fixing by Embodiment 1 of this invention. FIG. 6 is a cross-sectional view taken along the line xx of FIG. 5 (a) and a cross-sectional view taken along the line yy (b). In order to explain the operation of the fixing rod member when the carriage is fixed (a), (b) and when the fixing is released (c) according to the first embodiment of the present invention, a part of the flange, the apparatus frame, and the exterior cover are shown. It is explanatory drawing shown crushed. Schematic configuration diagram of an image reading apparatus according to the second embodiment (A) Configuration diagram of rotation regulating member of image reading apparatus according to the second embodiment (b) Configuration diagram of rotation regulating member of the image reading apparatus according to the second embodiment The figure for demonstrating the relationship between the rotation control member of the image reading apparatus by this Embodiment 2, and the fixing collar member. The figure for demonstrating the relationship between the rotation control member of the image reading apparatus by this Embodiment 2, and the fixing collar member. It is explanatory drawing (sectional drawing) of the example of fixation of the conventional carriage.

Explanation of symbols

1 Image reader
3 Platen
4 Full rate carriage
6 Half-rate carriage
14 Flange
15 Device frame
15a Side wall of equipment frame
16 Exterior cover
17 Flange hole
18 Equipment frame holes
20 Hole of exterior cover
21 Anchor member for fixing
22 Compression spring
32a 1st buttock
32b Second collar
38 opening

Claims (13)

A moving unit fixing mechanism of an information processing apparatus having a housing, a device frame arranged in the housing, and a moving unit that moves in the device frame,
A fixing pin for temporarily fixing the moving unit;
When the fixing pin penetrates the wall surface of the housing and the wall surface of the device frame and penetrates or contacts the wall surface of the moving unit, the moving unit is fixed in the device frame;
When the fixing pin is released from penetrating or contacting the wall surface of the moving unit, the moving unit is movable in the device frame, and the fixing pin is in a state of penetrating at least the housing. A fixed mechanism for a moving unit of an information processing apparatus. When the moving unit is fixed by the fixing pin,
The moving unit fixing mechanism of the information processing apparatus according to claim 1, wherein the fixing pin is movable in an axial direction when the fixing pin rotates at a fixed angle at a fixed position of the moving unit. The fixing pin has a protrusion on its surface,
When the fixing pin is at an angle other than a predetermined rotation angle, the protrusion comes into contact with the device frame and / or the inner wall of the moving unit, thereby being fixed with respect to the axial direction thereof. The moving unit fixing mechanism of the information processing apparatus according to claim 2. An elastic member that is provided in the housing and applies an urging force directed outward from the housing to the fixing pin;
The moving unit fixing mechanism of the information processing apparatus according to claim 2, wherein penetration or contact between the fixing pin and a wall surface of the moving unit is released at the predetermined angle by the biasing force of the elastic member. The fixing pin has a sealing surface that seals all or part of a through-hole through which the fixing pin provided in the housing and the apparatus frame penetrates at a predetermined position in the axial direction,
2. The moving unit fixing mechanism of the information processing apparatus according to claim 1, wherein the predetermined position is a position when the moving unit is in a movable state.   The device frame is provided around a through hole through which the fixing pin passes, and a rotation restricting member that restricts the rotation of the fixing pin at the predetermined angle at which the moving unit can move. The fixing mechanism of the moving unit of the information processing apparatus according to claim 2 provided.   The moving unit fixing mechanism of the information processing apparatus according to claim 6, wherein the fixing pin and the rotation regulating member are made of resin. The rotation restricting member is provided corresponding to the protrusion of the fixing pin, and includes at least one locking portion provided so as to contact the protrusion.
The fixing mechanism of the moving unit of the information processing apparatus according to claim 6, wherein the fixing pin is movable in the axial direction at a position where the protrusion is in contact with the locking portion. A second moving unit that moves within the device frame;
The mobile unit of the information processing device according to claim 1, wherein the second mobile unit is fixed indirectly by being sandwiched between the device frame and the mobile unit when the mobile unit is fixed. Fixing mechanism. The information processing apparatus is an image reading apparatus,
The moving unit fixing mechanism of the information processing apparatus according to claim 1, wherein the moving unit is a carriage. A housing,
A device frame disposed within the housing;
A moving unit moving in the device frame;
An information processing apparatus comprising: the moving unit fixing mechanism of the information processing apparatus according to claim 1.   An image reading apparatus comprising: a carriage that moves along a lower surface of a platen on which an original is set; an apparatus frame that is disposed inside a housing and includes a guide member that guides movement of the carriage; and an exterior cover. And a hole is provided in each of the device frame and the outer cover, and a fixing collar member is inserted into the outer cover, the device frame and the carriage from the outside of the device, and the device frame and the carriage are The image reading apparatus, wherein the carriage can be fixed by hooking a hook provided on the fixing hook member, and the fixing hook member is mounted on the exterior cover even after the carriage is unfixed.   A second reading carriage that moves in conjunction with the carriage, and the carriage is fixed so that the second carriage is indirectly fixed between the carriage and the side wall of the apparatus frame; The image reading apparatus according to claim 12.

Images