JP5554507B2 - Reading table - Google Patents

Description

  The present invention relates to a reading table, and more particularly to a reading table that allows reading in a supine posture.

  Conventionally, as this kind of reading stand, a reading stand that is configured so that a book can be read in a supine posture by placing the book face down on a transparent plate provided horizontally at the tip of the column and looking up from below. A set is disclosed (for example, Patent Documents 1 and 2).

  However, in Patent Documents 1 and 2, when reading while using illumination such as a fluorescent lamp stand, the light of the fluorescent lamp stand is reflected on the transparent plate, or the surrounding image is reflected on the transparent plate, There was a problem that it was difficult for the user to read. Further, when turning the page of a book, it is necessary to lift the book once from the transparent plate, turn the page, and then place it again on the transparent plate.

  On the other hand, there is disclosed a reading stand configured such that the upper and lower parts of a book are placed face down on a U-shaped stacking support member (for example, Patent Document 3). According to Patent Document 3, since a transparent plate is not used, it is possible to prevent reading from being difficult due to light from a fluorescent lamp stand or the like. On the other hand, in Patent Document 3, since it is necessary to adjust the stacking support member in accordance with the size of the book, there is a problem that the work is complicated and the size of the book is limited.

  In response to such problems, reading tables using a mirror have been disclosed (for example, Patent Documents 4 and 5). In Patent Document 4, a pair of mirrors that are provided apart from each other and a support mechanism unit that supports the mirrors are provided. A book placed above and held upward near the abdomen can be viewed.

  Further, Patent Document 5 discloses a reading mirror in which two mirrors are joined and fixed so that the mirrors are at right angles. As a result, right and left normal images that are reversed left and right by the two mirrors can be obtained, and reading can be performed.

JP 2007-268231 A JP 2007-289609 A JP 2008-173423 A JP-A-9-215525 JP 2003-79496 A

  However, in the case of Patent Documents 4 and 5, the user needs to position both the mirror and the book so that the book is in a predetermined positional relationship with respect to the mirror. It was. Further, since the user needs to hold the book in a certain state with his / her hand, there is a problem that it is difficult to read for a long time.

  Then, an object of this invention is to provide the reading stand which can read more easily in the supine posture.

The invention according to claim 1 of the present invention is a reading table including a placement unit for placing an object and a reversing unit having a mirror surface and reflecting the object twice. The reversing portion is held by the mounting portion, and includes a first mirror body in which a first mirror surface is formed on one surface of a synthetic resin plate-like base body, and a synthetic resin plate-like base body. A second mirror body having a second mirror surface formed on a side surface; a connecting portion that connects the first mirror body and the second mirror body at an approximately right angle of intersection; and An angle compensator for adjusting an intersection angle, the angle compensator being a back surface of the first mirror body and a first rib provided on the connecting portion, and a back surface of the second mirror body A second rib provided at a predetermined interval from the first rib, and an adjustment screw for changing the interval between the first rib and the second rib. Characterized in that to obtain the continuity of image at the intersection line L between the second mirror member and the first mirror member.

  The invention according to claim 2 of the present invention includes a shaft support body that pivotally supports the reversing portion on the mounting portion, and a lower end of the shaft supporting portion main body is located behind the lower end of the reversing portion. It is characterized by being arranged.

  The invention according to claim 3 of the present invention is characterized in that the mounting portion has a leg portion.

  The invention according to claim 4 of the present invention is characterized in that the leg portion is configured to be capable of changing its length.

  The invention according to claim 5 of the present invention is characterized in that the side of the mounting portion is open.

  The invention according to claim 6 of the present invention is characterized in that an illuminating part for irradiating the object placed on the placing part is provided in the reversing part.

  According to the first aspect of the present invention, the entire page of the object can be displayed by appropriately adjusting the angle of the inversion part with respect to the placement part, and the object is held without being supported by the hand. Can read more easily.

  According to the second aspect of the present invention, since the object can be inserted deeper into the placement part than the lower end of the reversing part, even a large book can be easily read.

  According to claim 3 of the present invention, the mounting portion of the reading table is provided with a leg portion, and a recess is formed on the lower side of the leg portion. Thereby, a reading stand can hold | maintain a reading stand on a user's body in the state from which the user released the hand, when a leg part fits a user's body.

  According to claim 4 of the present invention, the leg portion is provided so as to be adjustable in length, so that, for example, even when the reading table is placed on the comforter on the user's stomach, chest, or body, Since the angle of the mounting portion can be easily adjusted, it can be held at a desired angle.

  According to the fifth aspect of the present invention, the user can easily shift the position of the object or easily turn the page by extending the hand to the object on the flat plate part, and can also have a larger object than the flat plate part. It can be used by shifting as appropriate.

  According to the sixth aspect of the present invention, since the object can be illuminated brightly even in a dark environment, reading can be easily performed.

According to the present invention , the weight can be remarkably reduced as compared with the conventional case where glass is used, and the light is reflected by the first mirror body and the second mirror body that are generated by forming the inversion portion with synthetic resin. Distortion and deviation of the virtual image can be suppressed.

According to the present invention , the crossing angle can be changed by tightening or loosening the adjusting screw, so that the configuration can be simplified.

It is a perspective view which shows the whole structure of the reading stand which concerns on this invention, (A) The figure seen from the front side, (B) The figure seen from the back side. It is a transverse sectional view showing a configuration of a reversing unit according to the present invention. It is a perspective view which shows the use condition of the reading stand which concerns on this invention, and is a figure which shows the state which extended the front leg. It is the perspective view seen from the bottom face side which shows the structure of the mounting part which concerns on this invention. It is a perspective view which shows the use condition of the reading stand which concerns on this invention. It is the perspective view seen from the front side which shows the use condition of the reading stand which concerns on this invention. It is the conceptual diagram which shows typically the image projected on the inversion part which concerns on this invention, (A) The figure which looked at the mirror surface from the front, (B) The cross-sectional view of a mirror surface. It is a conceptual diagram which shows typically the image projected on the inversion part which concerns on this invention, shows the case where an intersection angle is smaller than a right angle, (A) The figure which looked at the mirror surface from the front, (B) The cross-sectional view of a mirror surface . It is a conceptual diagram which shows typically the image projected on the inversion part which concerns on this invention, shows the case where an intersection angle is larger than a right angle, (A) The figure which looked at the mirror surface from the front, (B) The cross-sectional view of a mirror surface . It is a conceptual diagram which shows typically the image projected on the inversion part which concerns on this invention, shows the case where the connection part vicinity has an acute angle, and the front-end | tip is a right angle from the center part of each mirror surface, (A) The mirror surface was seen from the front FIG. 4B is a cross-sectional view of the mirror surface. It is the conceptual diagram which shows typically the image projected on the inversion part which concerns on this invention, the case where the connection part vicinity is a right angle and the front-end | tip is an acute angle from the center part of each mirror surface, (A) The mirror surface was seen from the front FIG. 4B is a cross-sectional view of the mirror surface. It is a figure which shows typically the mode of a deformation | transformation of the inversion part which concerns on this invention, (A) When an intersection angle is a right angle, (B) Narrow the intersection angle by narrowing the space | interval of a 1st rib and a 2nd rib. (C) It is a figure which shows the case where the space | interval of a 1st rib and a 2nd rib is expanded, and a crossing angle is made into an acute angle. It is sectional drawing which shows the modification of the inversion part which concerns on this invention. It is a perspective view which shows the modification of the reading stand which concerns on this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
(1) Overall Configuration A reading table 1 shown in FIG. 1 has a placement unit 2 on which a book B (not shown in the figure) as an object is placed and a page P opened by the book B horizontally reversed. And a reversing unit 4 that projects on the mirror surface 3. As shown in FIG. 6, the reading table 1 as a whole reflects the open page P of the book B placed on the placement unit 2 to the reversing unit 4 with the object reflected twice, and is not reversed. By projecting two virtual images 50V, it is configured so that the user can read in a supine posture. In the following description, F in the figure is on the front and R is the back.

  As shown in FIG. 1, the placement portion 2 is formed using a plywood plate, and has a substantially rectangular flat plate portion 5 on which the book B is placed on one side surface 5 a and the other side surface of the flat plate portion 5. And a leg portion 6 provided on 5b. At one side end of the flat plate part 5, a shaft support part body 7 is provided on the one side surface 5a.

  The shaft support body 7 is inclined inwardly from one side end of the flat plate portion 5, and an insertion groove 11 is formed by a pair of holding plates 10, 10 standing vertically. The holding plates 10 and 10 are provided with first through holes 12 in a direction orthogonal to each other. Moreover, one ends of hinges 23 and 23 are fixed to the upper end of the shaft support body 7. Thereby, the shaft support body 7 is arranged at a position where the lower end 7a is farther away from the lower end 4a of the reversing unit 4 than the lower end R of the mounting unit 5 in use.

  The inversion unit 4 includes a first mirror body 15 and a second mirror body 16. The first mirror body 15 and the second mirror body 16 are plate-like base bodies 17 and 17 formed of synthetic resin, and first surfaces as mirror surfaces 3 on one side surfaces of the base bodies 17 and 17, respectively. The mirror surface 3a (not shown in the figure) and the second mirror surface 3b are formed, and the first mirror surface 3a and the second mirror surface 3b are arranged on the inner side in the connecting portion 18 in an integrated manner. Is formed. The connecting portion 18 connects the first mirror body 15 and the second mirror body 16 at a substantially right angle. Here, a straight line formed by abutting the first mirror surface 3a and the second mirror surface 3b is called an intersection line L, and is formed by the first mirror surface 3a and the second mirror surface 3b with the intersection line L as the center. This interior angle is called the intersection angle α.

  Further, the reversing unit 4 is provided with an angle compensating unit 20 on the back surface side so that the intersection angle α can be adjusted. A lower end plate 21 is suspended from the lower end of the first mirror body 15 and the lower end of the second mirror body 16 below the reversing unit 4. The lower end plate 21 is connected to the shaft support body 7.

  Further, on the upper part of the reversing unit 4, an upper girder plate 22 is hung on the upper end of the first mirror body 15 and the upper end of the second mirror body 16, and an illumination unit (not shown) is provided on the upper girder plate 22. It has been. The illuminating part is provided so as to be directed to the one side surface 5a of the flat plate part 5, and is configured to irradiate the one side surface 5a.

  The lower end plate 21 and the upper end plate 22 form a gap C in the vicinity of the connecting portion 18 so that the first mirror body 15 and the second mirror body 16 can change the crossing angle α around the connecting portion 18. Has been.

  The lower end plate 21 has the other ends of the hinges 23 and 23 fixed thereto. An insertion plate 24 is erected vertically on the lower end plate 21. The insertion plate 24 is inserted into the insertion groove 11. Thus, the insertion plate 24 is inserted by inserting the first fixing bolt 25 into the first through hole 12 and tightening it to a nut (not shown) in a state where the reversing portion 4 is set at an arbitrary angle with respect to the mounting portion 2. Is held in the insertion groove 11. Thereby, the inversion part 4 is fixed with respect to the mounting part 2.

  In this way, the reading table 1 is configured such that the reversing unit 4 is pivotally supported on the mounting unit 2, the reversing unit 4 is adjusted to an arbitrary angle with respect to the mounting unit 2, and can be fixed in that state. Has been.

  The angle compensator 20 is a back surface of the first mirror body 15, the first rib 30 provided in parallel to the connecting portion 18, and a back surface of the second mirror body 16. A second rib 31 provided parallel to the connecting portion 18 at a predetermined interval from the first rib 30 as a center, and an adjusting screw 32 for connecting the first rib 30 and the second rib 31 to each other. Have. A plurality of adjustment screws 32 (five in this figure) are provided at equal intervals in the longitudinal direction of the first rib 30 and the second rib 31.

  In the case of the present embodiment, as shown in FIG. 2, the angle compensator 20 has an adjustment screw 32 inserted from the first rib 30 toward the second rib 31 and formed in the second rib 31. It is configured to be able to be screwed into the female screw. The angle compensator 20 can tighten the adjustment screw 32 to reduce the distance between the first rib 30 and the second rib 31, thereby making the angle near the intersection line L an obtuse angle. Further, the angle compensator 20 can make the angle near the intersection line L an acute angle by loosening the adjustment screw 32 and widening the distance between the first rib 30 and the second rib 31.

  As shown in FIG. 3, the leg portion 6 includes a front leg 35 and a rear leg 36, and is configured so that the length of the front leg 35 can be changed. In the case of the present embodiment, the front leg 35 includes a first front leg 35a fixed to the other surface 5b of the flat plate portion 5, a second front leg 35b provided to be movable up and down with respect to the first front leg 35a, There are second fixing bolts 37 and 37 for fixing the second front leg 35b to the first front leg 35a. The first front leg 35a is formed with an oblong hole 38 that is long in the height direction, and second fixing bolts 37, 37 are inserted through the oblong hole 38. The tips of the second fixing bolts 37, 37 are screwed into nuts (not shown) provided on the upper part of the second front legs 35b. Further, a recess 39 is formed at the center of the lower side of the second front leg 35b.

  Further, as shown in FIG. 4, the placement unit 2 is provided with a pair of holding units 40 and 40 that press the opened page P of the placed book B. The holding portion 40 has a base end 40 b that is rotatably held on the other surface 5 b of the flat plate portion 5, and is biased so that the distal end 40 a is closed toward the center of the flat plate portion 5. In the case of this embodiment, the holding portion 40 is formed by bending a stainless steel linear member into a substantially S shape, and is pivotally supported on the other surface 5b of the flat plate portion 5 on the base end 40b side. In this pair of holding portions 40, the curved portions 41, 41 on the base end 40 b side are connected to each other by a coil spring 42, and thereby the tip end 40 a is urged in a closing direction toward the center of the flat plate portion 5. . A slip stopper is provided at the tip of the holding portion 40.

(2) Action and Effect Next, the action and effect of the reading stand 1 configured as described above will be described. First, the book B is placed on the one side surface 5a of the flat plate part 5 so as to be inserted from the front F of the placement part 2 to the back R with the page P opened. At this time, the book B is arranged at a position where the lower part comes into contact with the shaft support body 7 and the upper part is arranged on the front F side of the flat plate part 5. Here, the shaft support portion body 7 is inclined inward from one end of the flat plate portion 5, and supports the reversing portion 4 via a hinge 23 at the upper end. Thereby, in the state of use, the lower end 7a of the shaft support main body 7 is disposed at the back R of the placement unit 2 from the lower end 4a of the reversing unit 4, so It is possible to insert into the back R of the mounting part 2. Then, the reading table 1 allows the user to easily read a large book B by appropriately moving the book B between the back R and the front F of the placement unit 2.

  Next, the reading table 1 holding the book B in this way is placed on the chest of the user U who is supine as shown in FIG. Here, the reading stand 1 has a structure in which the reversing unit 4 is pivotally supported by the placing unit 2 by the pivot supporting unit body 7, so that the book can be obtained by appropriately adjusting the angle of the reversing unit 4 with respect to the placing unit 2. Since the entire page P of B can be displayed, reading can be performed more easily. Furthermore, the reading table 1 grips the first rib 30 and the second rib 31 provided on the back side of the reversing unit 4, so that the user U can easily set the angle of the reversing unit 4 with respect to the placement unit 2. Can be adjusted.

  In addition, the mounting portion 2 of the reading table 1 is provided with a leg portion 6, and a recess 39 is formed on the lower side of the leg portion 6. Thereby, since the reading stand 1 can hold | maintain the reading stand 1 on the user's U body in the state from which the user U released | separated by the leg part 6 fitting to the user's U body, it is easy. Can read.

  Since the reading table 1 is open on the side between the reversing unit 4 and the flat plate unit 5, the user U can easily reach the book B on the flat plate unit 5 and turn the page P. At the same time, since a book B that is larger than the flat plate portion 5 can be used by appropriately shifting it, reading can be easily performed.

  Incidentally, conventionally, mirrors have been made of glass because they require high precision to prevent distortion and the like. Then, since the mirror is heavy, when used in a reading stand used in a supine posture as in the present invention, there is a problem that usability is reduced because it is heavy as a whole and needs to be enlarged. On the other hand, if the mirror is made of synthetic resin, weight reduction and size reduction can be realized, but synthetic resin is easily deformed and it is difficult to obtain high accuracy as a mirror.

  On the other hand, in the case of the present invention, in the reading table 1, the reversing unit 4 is constituted by the first mirror body 15 and the second mirror body 16, and the first mirror body 15 and the second mirror body 16 are The synthetic resin base bodies 17 and 17 and the first mirror surface 3a and the second mirror surface 3b formed on one side surface of the base bodies 17 and 17 were formed. As a result, the reading table 1 can be reduced in weight and size by forming a mirror with a synthetic resin that is much lighter than glass, and can be significantly reduced in weight compared to the conventional structure that is configured with a glass mirror. be able to. Further, the reading table 1 is provided with the angle compensation unit 20 so that the distortion of the second virtual image 50V reflected by the first mirror surface 3a and the second mirror surface 3b caused by forming the reversing unit 4 with synthetic resin. Misalignment can be suppressed.

  The front legs 35 are provided so that the length thereof can be adjusted. For example, even when the reading table 1 is placed on the comforter on the stomach, chest, or body of the user U, the front leg 35 can be easily adjusted. You can adjust the angle. Therefore, since the reading table 1 can be held at a desired angle while the user U releases his / her hand from the book B or the placement unit 2, reading can be performed more easily.

  Moreover, the leg part 6 can improve the fit with respect to the user's U body and a futon by providing the recessed part 39 in the lower side, for example, when the user U turns over during use, the movement of the user U's body Accordingly, the reading table 1 can be prevented from falling down in the front-rear direction, in particular, the front F side of the placement unit 2.

  Further, the reading table 1 rotates the tip 40a of the holding portion 40 to the outside of the flat plate portion 5 and moves it from the side of the flat plate portion 5 to the one side surface 5a and holds it on the open page P of the book B. By placing the front end of the section 40, the book B can be held in a state of being opened on a desired page P. The reading table 1 is configured to place the book B on the placement unit 2, so that it can be used for a relatively heavy book B, a book B larger than the flat plate unit 5, a newspaper, and the like.

  Here, as shown in FIG. 6, the opened page P of the book B placed on the placement unit 2 is reflected and reflected on the mirror surface 3 of the reversing unit 4. On the side portion of the mirror surface 3 of the reversing unit 4, the opened page P of the book B placed on the placement unit 2 is directly reflected and reflected.

  In addition, a second virtual image 50V is further reflected in the center portion of the mirror surface 3 of the reversing unit 4 in which the opened page P of the book B reflected on the side portion of the mirror surface 3 is further reflected. As described above, the second virtual image 50V reflected twice by the first mirror surface 3a and the second mirror surface 3b is reflected in the central portion 3c of the mirror surface 3 of the reversing unit 4, so that the user U can By viewing the virtual image 50V, the opened page P of the book B can be read.

  Since the reversing unit 4 is provided with an illumination unit, the opened page P of the book B can be illuminated brightly even in a dark environment, so that reading can be easily performed. Here, the inversion part 4 is composed of a first mirror body 15 and a second mirror body 16 connected substantially at right angles, and is arranged so as to surround the flat plate part 5, so that it can be used as an illumination hood. Function. Therefore, since the reading stand 1 can reduce the amount of light leaking to the surroundings, the user U can read without disturbing others sleeping in the same room, for example.

  Further, since the illuminating unit is provided so as to be directed to the one side surface 5a of the flat plate unit 5, the light emitted from the illuminating unit is reflected by the reversing unit 4 and is applied to the open page P of the book B. Therefore, it can shine more efficiently.

  In addition, by providing illumination to the reversing unit 4, even if the angle of the reversing unit 4 is changed with respect to the mounting unit 2, the illumination unit can reliably irradiate the one side surface 5 a of the flat plate unit 5. Therefore, it is not necessary to adjust the position of the illumination unit in accordance with the change in the angle of the reversing unit 4, so that the user U can easily read.

  In addition, the reading table 1 can suppress distortion and displacement of the second virtual image 50V reflected by the first mirror surface 3a and the second mirror surface 3b by providing the angle compensation unit 20 in the reversing unit 4. .

  Here, the second virtual image 50V reflected and reflected by the first mirror surface 3a and the second mirror surface 3b will be described with reference to FIG. Reference numeral 50 shown in the figure is an object placed on the placement unit 2, and five horizontal arrows and five arrows 51, 52, 53, 54, 55 are provided at predetermined positions on the horizontal line. Reference numeral 63 in the figure denotes the lower end of the mirror surface 3.

  The right first virtual image 50R1 of the object 50 is reflected in the right portion 3s of the first mirror surface 3a. The first right virtual image 50R1 has arrows 51R1, 52R1, 53R1, 54R1, and 55R1 arranged in order from top to bottom corresponding to the arrows 51, 52, 53, 54, and 55 provided on the object 50. The right first virtual image 50R1 and the object 50 are in a symmetrical position on the first mirror surface 3a. Further, the left first virtual image 50L1 of the object 50 is reflected in the left portion 3s of the second mirror surface 3b. The left first virtual image 50L1 has arrows 51L1, 52L1, 53L1, 54L1, and 55L1 arranged in order from bottom to top corresponding to the arrows 51, 52, 53, 54, and 55 provided on the object 50. The left first virtual image 50L1 and the object 50 are in symmetrical positions on the second mirror surface 3b.

  The user U can visually recognize the left second virtual image 50L2 in which the right first virtual image 50R1 is reflected on the second mirror surface 3b. The left second virtual image 50L2 and the right first virtual image 50R1 are at the symmetrical position of the second mirror surface 3b, and the left second virtual image 50L2 is the right half of the object 50.

  Similarly, the user U can visually recognize the right second virtual image 50R2 in which the left first virtual image 50L1 is reflected on the first mirror surface 3a. The right second virtual image 50R2 and the left first virtual image 50L1 are in the symmetrical position of the first mirror surface 3a, and the right second virtual image 50R2 is the left half of the object 50.

  Thereby, the user U can visually recognize the target object 50 by the second virtual image 50V formed by the right side second virtual image 50R2 and the left side second virtual image 50L2. In this case, in the second virtual image 50V, the arrows 51V, 52V, 53V, 54V, and 55V are arranged in order from right to left corresponding to the arrows 51, 52, 53, 54, and 55 provided on the object 50. . Further, the positional relationship between the intersection line L of the reversing unit 4 and the second virtual image 50V varies depending on the position that the user U visually recognizes. An arbitrary second virtual image 60V corresponding to an arbitrary point 60 in the figure is reflected at a point-symmetrical position with the intersection 61 as the center.

  In the drawing, 62V is a second virtual image of the plane chart 62 composed of a plurality of oblique lines as the object 50. When the first mirror surface 3a and the second mirror surface 3b are flat as a whole and the crossing angle α is a right angle over the length direction, when the plane chart 62 is placed on the placement portion 2, The oblique line is not bent and can be visually recognized as a matched straight line with no deviation at the intersection line L. As a result, the reading table 1 causes the user U to visually recognize the second virtual image 62V as a normal rotation image that is not reversed by reflecting the object 50 placed on the placement unit 2 twice by the reversing unit 4. be able to.

  By the way, the degree of influence of the crossing angle α is observed by amplification so as to be called “mirror lever”, and the right side image and the left side image are respectively doubled by the first mirror surface 3a and the second mirror surface 3b. Since the position of the image moves to the second position, the displacement of the position of the second virtual image is quadrupled. For example, when viewing the object 50 at a distance of 30 cm from the intersection line L, the left second virtual image 50L2 and the right second virtual image 50R2 are 300 mm × 1/1 at an obtuse angle where the intersection angle α is 1/1000 (radian) larger than the right angle. If the left and right images are close to each other by 1000 × 4 = 1.2 mm, and the type is small, half of one character is lost, which makes reading difficult.

  The inclination of 1/1000 (radian) as described above is “sink” when the base bodies 17 and 17 are molded with synthetic resin, and shrinkage of the adhesive used to fix the mirror surface 3 to the base bodies 17 and 17. It may be caused by “warping” generated at the end of the mirror surface 3 due to the above. In the following, regarding the influence of the above-mentioned intersection angle α, when the intersection angle α is smaller than a right angle, when the intersection angle α is larger than a right angle, the vicinity of the intersection line L is an acute angle from the central portion of the first mirror surface 3a and the second mirror surface 3b. There will be described four cases where 64 (FIG. 6) is a right angle, the intersection L is in the vicinity of a right angle, and the tip 64 from the central portion of the first mirror surface 3a and the second mirror surface 3b is an acute angle.

  First, the case where the intersection angle α is smaller than a right angle will be described with reference to FIG. In this figure, 63a is the lower end of the mirror surface 3. In this case, the right first virtual image 50R1 and the left first virtual image 50L1 are displaced from the front F (lower in the figure) toward the inside and the rear R (upper in the figure) to the outside as viewed from the user U side. As a result, in the second virtual image 50V, the arrow 53V positioned in the vicinity of the intersection line L is not coincident between the left second virtual image 50L2 and the right second virtual image 50R2, and the arrow 53V appears double to the user U. . Further, when the plane chart 62 is installed on the placement unit 2, in the second virtual image 62 </ b> V of the plane chart 62, the left and right images are separated from each other, the overall width becomes long, and the oblique lines are mismatched at the intersection line L.

  Next, a case where the intersection angle α is larger than a right angle will be described with reference to FIG. In this figure, 63b is the lower end of the mirror surface 3. In this case, contrary to FIG. 8, the right first virtual image 50R1 and the left first virtual image 50L1 are shifted from the front F to the outside and the back R from the inside as viewed from the user U side. As a result, in the second virtual image 50V, the arrow 53V positioned in the vicinity of the intersection line L appears to the user U as having the arrow 53V missing as the left second virtual image 50L2 approaches the right second virtual image 50R2. Further, when the flat chart 62 is installed on the placement unit 2, in the second virtual image 62V of the flat chart 62, the left and right images approach each other and the horizontal width becomes short as a whole, and an oblique line opposite to that in FIG. A discrepancy occurs. When the crossing angle α is deviated from the right angle as described above, the situation shown in FIG. 8 or FIG.

  Next, the case where the vicinity of the intersection line L is an acute angle and the tip 64 is at a right angle from the center of the first mirror surface 3a and the second mirror surface 3b will be described with reference to FIG. In this figure, 63 c is the lower end of the mirror surface 3. In the drawing, the right first virtual image 50R1 and the left first virtual image 50L1 are omitted. The first mirror surface 3a and the second mirror surface 3b are curved in a convex shape as a whole. In this case, both sides of the object 50 close to a right angle are correctly reflected, but a part near the intersection line L has an acute angle, so the second left virtual image 50L2 and the second right virtual image 50R2 do not coincide with each other, and the user From U, the arrow 53V appears double. The convex curved portions of the first mirror surface 3a and the second mirror surface 3b are distorted images according to the curved shape. In addition, when the flat chart 62 is installed on the placement unit 2, in the second virtual image 62V of the flat chart 62, the diagonal line is linear on both sides, but gently curves toward the center, and the intersection line L In FIG. As described above, the vicinity of the intersection line L is an acute angle, and the tip 64 is perpendicular to the central portion of the first mirror surface 3a and the second mirror surface 3b. Conversely, the vicinity of the intersection line L is an obtuse angle and the first mirror surface 3a and the second mirror surface 3b. If the tip 64 from the central portion of the mirror surface 3b has an acute angle, or if the first mirror surface 3a and the second mirror surface 3b are deformed, the misalignment in the intersection line L impedes interpretation of the characters.

  Next, the case where the vicinity of the intersection line L is a right angle and the tip 64 from the central part of the first mirror surface 3a and the second mirror surface 3b is an acute angle will be described with reference to FIG. In this figure, 63 d is the lower end of the mirror surface 3. In the drawing, the right first virtual image 50R1 and the left first virtual image 50L1 are omitted. The first mirror surface 3a and the second mirror surface 3b are curved in a concave shape as a whole. In this case, in the second virtual image 50V, both side portions are distorted because the first mirror surface 3a and the second mirror surface 3b are acute angles toward the tip 64. The second virtual image 50L2 and the right second virtual image 50R2 coincide. In the concave portions of the first mirror surface 3a and the second mirror surface 3b, a distorted image is formed according to the shape of the curve. In addition, when the flat chart 62 is installed on the placement unit 2, in the second virtual image 62V of the flat chart 62, the oblique lines are gently curved on both sides, but the oblique lines coincide with each other at the intersection line L. Two virtual images 50V have continuity.

  With the above configuration, when there is an error in the crossing angle α shown in FIGS. 8 and 9, the vicinity of the crossing line L shown in FIG. 11 is a right angle and the tip 64 from the central portion of the first mirror surface 3a and the second mirror surface 3b. Since the first mirror surface 3a and the second mirror surface 3b are locally deformed so as to have an acute angle, even if the second virtual image 50V is distorted, characters can be continuously viewed at the intersection line L. In practical terms, it can reduce the obstacles to reading. Thus, even if the overall intersection angle α of the first mirror surface 3a and the second mirror surface 3b is deviated from a right angle, the apparent angle at the intersection line L can be obtained by locally deforming the intersection angle α in the vicinity of the intersection line L. Continuity can be obtained.

  From the above results, it is effective to keep the intersection angle α at right angles in order to prevent missing characters and maintain continuity at the intersection line L. The reading table 1 according to the present invention is configured such that the angle compensator 20 is provided in the reversing unit 4 so that the intersection angle α can be compensated. Thereby, since the reading stand 1 can adjust and hold | maintain the continuity of the 2nd virtual image 50V, the user U can read more easily.

  In the case of the present embodiment, the crossing angle α can be adjusted by tightening or loosening the adjusting screw 32 of the angle compensation unit 20. Specifically, as shown in FIG. 12, when the adjustment screw 32 is tightened to reduce the distance between the first rib 30 and the second rib 31, the crossing angle α increases and becomes obtuse as shown in FIG. Can be deformed. On the other hand, when the adjustment screw 32 is loosened to widen the distance between the first rib 30 and the second rib 31, the crossing angle α is narrowed as shown in FIG. The shape of the reversing part 4 shown in this figure is a more complicated S shape than that shown in FIGS. 10 and 11, but by making the intersection angle α near the intersection line L locally a right angle, The continuity of the virtual image at L can be obtained, and even if a complicated distortion occurs in a portion away from the intersection line L, troubles for practical reading can be reduced.

  Here, the inversion part 4 changes the space | interval of the 1st rib 30 and the 2nd rib 31 with the adjusting screw 32, when the upper end board 22 and the lower end board 21 formed the clearance gap C in the connection part 18 vicinity. Thus, the intersection angle α easily changes. Therefore, since the reading table 1 can easily change the intersection angle α, the continuity of the second virtual image 50V can be easily adjusted.

  Further, the reading table 1 is provided with the angle compensator 20, so that the first mirror body 15 and the second mirror body 16 made of synthetic resin are deformed at the time of manufacture, and the first mirror surface 3a and the second mirror surface 2 are formed. The error of the angle generated in the intersection angle α can be compensated for by the unevenness of the adhesive surface of the mirror surface 3b and the deformation due to its own weight during use.

Further, the angle compensator 20 can compensate the intersection angle α over the entire length of the connecting portion 18 by providing a plurality of adjusting screws 32 at equal intervals in the length direction of the connecting portion 18. Furthermore, by providing a plurality of adjusting screws 32 at equal intervals in the length direction of the connecting portion 18, the crossing angle α can be partially compensated.
(3) Modifications The present invention is not limited to the above-described embodiment, and can be appropriately changed within the scope of the gist of the present invention. For example, the case where the book B is placed as the object 50 on the placement unit 2 has been described. However, the present invention is not limited to this, and a document, a photograph, an illustration, a newspaper, or the like is placed on It may be read or viewed.

  Further, in the case of the above embodiment, the case where the angle compensation unit 20 is provided along the connecting unit 18 has been described, but the present invention is not limited to this and may be configured as shown in FIG. The inversion unit 70 shown in the figure includes a first mirror body 71, a second mirror body 72, and an adjustment screw 73 as an angle compensation section. The second mirror body 72 includes a mirror surface holding portion 74 and an extension portion 75 formed integrally with the mirror surface holding portion 74 so as to cover the back surface side of the first mirror body 71. The extension 75 is formed with an insertion hole 76 through which the adjustment screw 32 is inserted. The first mirror 71 is provided with a screw receiving portion 78 on the back side of the base body 77, and a tap hole 79 is formed in the screw receiving portion 78. The first mirror body 71 and the second mirror body 72 are rotatably connected by a hinge 80 as a connecting portion. The adjustment screw 32 is inserted into an insertion hole 76 formed in the extension portion 75 and screwed into a tap hole 79 formed in the screw receiving portion 78. The reversing unit 70 configured as described above can adjust the continuity of the second virtual image 50V by changing the intersection angle α by tightening or loosening the adjusting screw 32.

  Moreover, in the case of the said embodiment, although the mounting part 2 demonstrated the case where it formed with the veneer board, this invention is not restricted to this, Light weight is sufficient, Hard synthetic resin, a lightweight metal, for example, aluminum, etc. You may form with the plate-shaped member comprised with a magnesium alloy.

  Moreover, in the case of the said embodiment, although the reading stand 1 demonstrated the case where it laid on the stomach and chest of the user U who laid supine, this invention is not limited to this, The side of the user U who is sleeping sideways Alternatively, one end of a telescopic arm may be attached to the placement portion 2 and the other end of the arm may be fixed to the floor or bed frame.

  Further, the reading table 1 may be provided with a cover 80 that covers the angle compensation unit 20 as shown in FIG. By providing the cover 80, the design can be improved, and by gripping the cover 80, the angle of the reversing unit 4 with respect to the mounting unit 2, the carrying, and the movement in a state where the user is supine are facilitated. be able to.

1 Reading table 2 Placement part 3 Mirror surface
3a First mirror surface
3b Second mirror surface 4 Inversion part
4a Lower end 6 Leg 7 Shaft support body
7a Bottom
15 First mirror
16 Second mirror
18 Connecting part
20 Angle compensator
30 First rib
31 Second rib
32 Adjustment screw B Book (object)
R back

Claims (6)

A reading table comprising a placement unit for placing an object and a reversing unit having a mirror surface and reflecting the object twice.
The inversion portion is held by the mounting portion, and includes a first mirror body having a first mirror surface formed on one surface of a synthetic resin plate-like base body, and a synthetic resin plate-like base body. A second mirror body having a second mirror surface formed on one side surface; a connecting portion for connecting the first mirror body and the second mirror body at a substantially right angle; and the connecting portion. An angle compensator for adjusting the crossing angle of
The angle compensator is a back surface of the first mirror body and a first rib provided on the connecting portion, and a back surface of the second mirror body and a predetermined distance from the first rib. A second rib provided with a gap, and an adjustment screw that changes the distance between the first rib and the second rib,
A reading table characterized by obtaining continuity of images at an intersection line L between the first mirror body and the second mirror body .   The shaft support part main body which pivotally supports the said inversion part to the said mounting part is provided, The lower end of the said shaft support part main body is arrange | positioned in the back of the said mounting part from the lower end of the said inversion part. The reading table listed.   The reading table according to claim 1, wherein the mounting portion has a leg portion.   The reading stand according to claim 3, wherein the leg portion is configured to be capable of changing a length.   The reading stand according to any one of claims 1 to 4, wherein a side of the mounting portion is open.   The reading table according to claim 1, wherein an illuminating unit that irradiates the object placed on the placing unit is provided on the reversing unit.

Images