KR20230173297A - Multi-purpose Book Stand - Google Patents

Abstract

The reading stand according to the present invention includes a pressing member 130 for pressing the upper part of an open book; An extension rod 120 that is slidably coupled to the pressing member 130 and extends in the longitudinal direction; It is configured to include a bookshelf pressing module 100 including a ratchet part 110 to which one end of the extension rod 120 is coupled, wherein the extension rod 120 and the pressing member 130 are connected to the ratchet part ( It is characterized in that it can be rotated around the rotation axis 111 configured in 110).

Description

Multi-purpose Book Stand}

The present invention relates to a reading stand that has the function of fixing an open bookshelf, and that can be used for purposes such as inputting book information into a computer or being used by people with presbyopia.

Due to the coronavirus pandemic, working from home has expanded and students have experienced a non-face-to-face learning environment. Through this series of processes, it has been proven that many activities that were traditionally done in one place can be done in dispersed places, and in some ways are more efficient. In other words, there is no need to gather in the same physical location as long as you are well connected online.

In the background of the successful completion of these attempts, along with the development of the Internet, cameras mounted on almost all computers played an essential role. Additionally, the development of video management services that connect multiple people as if they were gathered in one place also played a big role.

However, there are still many inconveniences, one of which is that there is no filming device optimized for publications such as books. To show the contents of a book to a remote person, the subject, an open book, must be fixed, and the camera must be fixed to face the front of the open book.

There is an existing reading table as a device that secures the bookshelf so that it does not fall over. A reading stand stands up books at a comfortable angle for people to read, and is usually equipped with two bookshelf fixing clips on the left and right sides to prevent the bookshelf from falling over. However, in order to turn a bookshelf on an existing reading stand, you hold one bookshelf clip with one hand and pull out a page with the other hand, then press the bulging book (the part that was pulled out) and then release the bookshelf clip. After that, the process is carried out by holding the bookshelf fixing clip on the other side with one hand, inserting the removed bookshelf with the other hand, pressing the bulging book (the insertion side), and then releasing the bookshelf fixing clip. In the case of thick books, it is common for the book to bulge again when the bookshelf fixing clip is lifted. (Lift one bookshelf fixing clip → Remove one page → Press the book and release the bookshelf fixing clip → Lift the other bookshelf fixing clip → Remove the bookshelf Since it is desirable to proceed sequentially through a process such as inserting the book → pressing the book and releasing the corresponding bookshelf fixing clip), there is a complexity in the action of turning the bookshelf as it must be carried out in several sequential steps.

On the other hand, when using such a reading stand, the camera must also be placed at the same angle, and above all, the movement of turning the pages may be hindered due to the placement of the camera.

Meanwhile, it is common for people to experience a decline in vision as they age, and presbyopia is a degenerative disease that causes difficulty in seeing small print. Because modern people are exposed to the displays of information and communication devices for long periods of time from a young age, they sometimes suffer from presbyopia even in their 30s. Additionally, as we have entered an aging society, unlike in the past, people have to continue working without retiring even after reaching middle age. However, various publications, including books, are difficult for people with presbyopia to read.

The classic way to solve this inconvenience is to use a magnifying glass, but since you have to hold the magnifying glass with one hand, it is inconvenient to perform other tasks at the same time, such as entering the contents of a book into a computer. If you use a magnifying glass fixed to a stand, you can use both hands freely. However, if the book is thick, the pages will fall over when you open it, so you have to hold it down with your hand. So even if the magnifying glass problem is solved, both hands are still not free.

Additionally, it is necessary to separately record the content to be remembered during the reading process or store it in a storage medium such as a computer. In this case, you need to take a picture of the bookshelf with your smartphone camera and transfer it to a computer storage medium. However, the series of processes that must be performed to achieve this goal are very inconvenient. Therefore, many patents have been developed to solve these problems.

For example, in Korean Patent No. 10-1986798 (Application No. 10-2017-0175680, application date December 20, 2017, Patent Document 1), a smartphone is used to turn and fix bookshelf without directly touching the bookshelf. A method is being proposed. However, considering that the thickness of an open book varies depending on the situation, and even the left and right thicknesses of the open book continue to vary as the book is read, the bookshelf turning means and the bookshelf fixing means according to the technology in Patent Document 1 are There are doubts about whether the intended flipping motion and fixation are possible.

Another Korean Patent No. 10-1625354 (Application No. 10-2016-0012058, application date January 31, 2016, Patent Document 2) proposes an efficient reading table pressing tool that prevents the bookshelf from tipping over. However, the technology of Patent Document 2 only has partial changes, such as improving the elasticity of the bookshelf fixing clip of the existing reading stand, and it is difficult to solve the fundamental problem of the existing reading stand.

1. Korean Patent No. 10-1986798 (Application No. 10-2017-0175680, application date December 20, 2017) 2. Korean Patent No. 10-1625354 (Application No. 10-2016-0012058, application date January 31, 2016)

The purpose of the present invention is to provide a reading stand that fixes a bookshelf and makes it easier to turn the pages.

Additionally, the purpose of the present invention is to provide a reading stand that can be used more easily by people with presbyopia.

A reading stand according to one aspect of the present invention includes a pressing member 130 for pressing the upper part of an open book; An extension rod 120 that is slidably coupled to the pressing member 130 and extends in the longitudinal direction; It is configured to include a bookshelf pressing module 100 including a ratchet part 110 to which one end of the extension rod 120 is coupled, wherein the extension rod 120 and the pressing member 130 are connected to the ratchet part ( It is characterized in that it can be rotated around the rotation axis 111 configured in 110).

In the above-mentioned reading stand, the ratchet part 110 is not limited to rotating in the forward direction, which is the direction in which the extension rod 120 and the pressing member 130 approach the book, but is not limited to rotating in the reverse direction, which is opposite to the forward direction. Meetings can be restricted or canceled depending on the user's operation.

In the reading table described above, the ratchet portion 110 includes a ratchet wheel 112 having a row of teeth 112a, which are a series of teeth along the circumference; A stopper ( 113); may be configured to include.

In the above-described reading stand, the stopper 113 is rotatable based on the stopper rotation center 13c, and the claw portion 113a is formed on a cantilever bent in an 'L' shape, and the stopper rotation center ( 13c) may be spaced apart from the rotation axis 111 of the ratchet part 110 in the direction where the pressing member 130 is located.

In the above-mentioned reading table, N numbers of the ratchet wheels 112 (N is a natural number of 2 or more) are combined in parallel to form a ratchet wheel array (A112), and the ratchet wheel ( 112), each stopper 113 is configured to form a stopper array A113, and the tooth rows 112a of each ratchet wheel 112 included in the ratchet wheel array A112 are configured to have a phase difference with each other. You can.

In the above-described reading table, the tooth row 112a of each ratchet wheel 112 included in the ratchet wheel array A112 is p1/N (p1 is the pitch angle of the teeth formed in a single ratchet wheel, and N is the pitch angle of the teeth formed in a single ratchet wheel. They can be arranged in different phases with an angular difference (number of ratchet wheels included in the array).

In the above-mentioned reading stand, the bookshelf pressing module 100 is fixed at one end and presses the stopper 113 at the other end so that the claw portion 11a of each stopper of the stopper array A113 presses the ratchet wheel 112. ) may be further provided with a linear spring array (A115) including a plurality of linear springs (115) pressed in the direction of.

In the above-mentioned reading stand, an unlocking part 140 that lifts one end of the stopper 113 when operated by a user to allow the claw part 113a to come out of the engaged teeth of the ratchet wheel 112 is further provided. can do.

In the reading table described above, the unlocking unit 140 includes a lifter actor 142d that contacts one end of the stopper 113 and lifts one end of the stopper 113, and the ratchet wheel array A112. A lifter 142 that is integrally formed with a surrounding arc-shaped lifter arc 142a and is rotatable about the lifter rotation center 142c; It can slide along the extension rod 120 and has a puller hanger portion 141a at one end that can be pulled by the user's finger, and a puller at the other end that contacts the lifter arc 142a to rotate the lifter 142. The actor 141c may be configured to include a puller 141.

In the above-described reading stand, the row of teeth 112a is formed only within the angular range A, which is a portion of the 360-degree angular range around the circumference, so that the extension rod 120 and the pressing member 130 do not exceed a certain angle. When rotated upward, the rotation of the extension rod 120 and the pressing member 130 may not be restricted even if the user does not manipulate the unlocking unit 140.

In the above-mentioned reading stand, the pressing member 130 includes a slider 132 that can slide along the extension rod 120 within a limited range; It may be configured to include a push bar 131 that is coupled to the slider 132 and extends to the left and right of the book.

In the above-mentioned reading stand, a post 220 vertically installed from the flat support plate 210; It is coupled to the post 220 via a boom module 240, and further includes a camera module 250 for photographing the book from above the book while being spaced apart from the book, and the bookshelf pressing module 100 is configured to A frame portion 150 that rotatably supports the ratchet wheel array (A112) and the stopper array (A113) and can be raised and lowered along the post 220 and then fixed may be further provided.

In the above-described reading stand, a mounting clip 230 may be further provided to hold and hold the extension rod 120 that is erected and seated.

The reading stand of the present invention has the advantage of fixing the bookshelves but making it easier to turn the pages. You can operate the bookshelf pressing module with one hand and turn the pages with the other hand. This has the advantage of making the user's operation process simpler and easier by reducing the process required for turning the pages.

In addition, according to the reading stand of the present invention, the teeth are formed only within an angular range that is part of the 360-degree angular range of the circumference, thereby improving user convenience.

In addition, according to the present invention, the pressing member can properly open the book and maintain the pressed state, and the page turning operation is easier, so there is an advantage that inputting book contents using a camera or using a magnifying glass becomes more convenient.

In addition, according to the present invention, the ratchet wheel array is configured to make the effective pitch angle very small, so the number of steps in the locked state that can press the book can be increased, and the physical rigidity of the ratchet part that maintains the locked state can be increased. There is an advantage.

Figure 1 is a perspective view showing the exterior of a reading stand according to an embodiment of the present invention.
Figure 2 is an exploded perspective view showing a bookshelf pressing module in a reading desk according to an embodiment of the present invention.
Figure 3 is an enlarged perspective view of the ratchet part of the reading table according to an embodiment of the present invention.
Figure 4 is a partially exploded perspective view showing only the main part of the bookshelf pressing module in the reading desk according to an embodiment of the present invention.
Figure 5 is a diagram showing a ratchet wheel array of a bookshelf pressing module in a reading desk according to an embodiment of the present invention, where Figure 4(a) is a perspective view and Figure 4(b) is a side view.
Figure 6 is a side view of a comparative example for comparing the case of configuring the pitch angle p2 with a single ratchet wheel rather than configuring the ratchet wheel array A112 with a plurality of ratchet wheels.
Figure 7 is a side view showing the operating state of the bookshelf pressing module. Figure 7(a) shows the state shown in Figures 1 and 2, and Figure 7(b) shows the state in which the book is pressed and locked. , Figure 7(c) shows a state in which the lock is released (unlocked state) to turn the pages.

Figure 1 is a perspective view showing the exterior of a reading stand according to an embodiment of the present invention. Figure 2 is an exploded perspective view showing a bookshelf pressing module in a reading table according to an embodiment of the present invention, and Figure 3 is an enlarged perspective view showing a ratchet portion in a reading table according to an embodiment of the present invention. Figure 4 is a partially exploded perspective view showing only the main part of the bookshelf pressing module in the reading desk according to an embodiment of the present invention. Figure 5 is a diagram showing a ratchet wheel array of a bookshelf pressing module in a reading desk according to an embodiment of the present invention, where Figure 4(a) is a perspective view and Figure 4(b) is a side view.

Hereinafter, a reading stand according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

The reading stand according to an embodiment of the present invention includes a bookshelf pressing module (100), a support plate (210), a post (220:220-1,220-2), a mounting clip (230), a boom module (240), and a camera module (250). It consists of, etc.

The support plate 210 is used to support other components of the reading stand that are floating or standing from the floor, and has a flat plate shape. The post 220 is installed vertically from the support plate 210 using a post fixture 260 fixed to the support plate 210 at the rear side of the support plate 210 and extends upward. The boom module 240 is for installing the camera module 250, etc. at a distance from each other at the top of the book. The boom module 240 is a boom module that is coupled to the top of the two posts 220-1 and 2201. Fixture 241, a boom post 242 that is fixed to the center of the boom base fixture 241 and extends upward, and the boom post 242 can be fixed after sliding, while the incline arm 243 is sliding. A first variable coupler 244 that can be fixed after sliding the incline arm 243, and a second variable coupler 245 that can be fixed after the lateral arm 246 has slid at the same time. , the second variable coupler 245 and the camera coupler 247 to which the camera module 250 is fixed include a lateral arm 246 that extends in length so that it can slide. After the first variable coupler 244, the second variable coupler 245, and the camera coupler 247 are slid to the desired position on the incline arm 243 or lateral arm 246, they are attached to one end of the fixing bolt. It can be fixed by turning the knobs (e2, e3, e4, e5, e6). Unlike the above configuration, the include arm 243, etc. may be omitted, and the boom module may be configured in an 'ㄱ' shape using the boom post 242 and the lateral arm 246.

The camera module 250 is coupled to the post 220 via the boom module 240, and is spaced apart from the book to photograph the book from above. The height and position are adjusted by adjusting various knobs of the boom module 240. It can be adjusted. Although not shown, the boom module may further include lights, camera modules, and switches to control the lights.

The bookshelf pressing module 100 is for pressing the bookshelf of an open book. The bookshelf pressing module 100 includes a ratchet part (110: 111 to 119), an extension rod (120), a pressing member (130), and an unlocking part (140). : 141, 142, 143) and a frame portion (150: 151-154).

The frame portion (150: 151-154) of the bookshelf pressing module (100) rotatably supports the ratchet wheel array (A112) and the stopper array (A113), and can be raised and lowered along the post 220 and then fixed. , the frame portion 150 includes two side frames (151-1, 151-2), two front frames (152-1, 152-2) coupled to the side frame in front of the side frame, and a side frame above the side frame. It is configured to include an upper frame 154 that is coupled to the lower frame 153 that is coupled to the lateral frame below the lateral frame.

The rotational axis 111 of the ratchet part 110 is inserted into the two axial holes 151a-1 and 151a-2 facing each other in the two lateral frames 151-1 and 151-2 of the frame part 150. Four stoppers (113:113-1 to 113-4) (shaft holes) are rotatably inserted into the two shaft rods (151b-1, 151b-2). In addition, the two side frames are each composed of guide holes (151c-1, 151c-2) through which the post 220 is guided upward and downward, and a fixture hole (151d) that communicates with the guide hole perpendicular to the longitudinal direction of the guide hole. ) is configured to press the post with a bolt coupled to the knob e1, thereby fixing the raised and lowered position of the bookshelf pressing module 100 including the frame portion 150.

The frame portion 150, the post 220, and the ratchet portion 110 are located outside the top of the book.

The extension rod 120 has one end coupled to the ratchet portion 110 on the outside of the book and extends from the top to the inside of the book. Preferably, the extension rod 120 has a configuration in which the user aligns the book on the reading table in a normal use state. In this case, the extension rod 120 extends long in the front-to-back direction so that it can extend along the bone portion of the opened book. The extension rod 120 is slidably coupled to the pressing member 130, and the extension rod 120 is composed of a single or multiple rods, bars, or frames with a long length compared to the cross-sectional area. As shown, the extension rod 120 is preferably composed of a single bar, and regardless of the embodiment, it is preferred to have a width that does not obscure the contents of an open book due to the extension rod 120.

The pressing member 130 is slidably coupled to the extension rod 120. It is slidably coupled to the extension rod 120 and is a part for pressing the top of the open book.

The pressing member 130 includes a slider 132 and a push bar 131, and the slider 132 is capable of sliding along the extension rod 120 within a limited range, and is located at the free end of the extension rod 120. It is possible to slide along the extension rod 120 within the range of the extension rod cap 161 that closes the and the first puller clip 141d-1 provided at the lower part of the puller 141.

The slider 1232 has a through hole through which the extension rod 120 passes, and a slight frictional force is applied between the extension rod 120 and the slider 132 so that it can be slid by the user, but it does not slide naturally due to gravity, etc. The outer diameter of the extension rod 120 and the inner diameter of the through hole are designed to prevent this from happening.

The push bar 131 is integrally combined with the slider 132 and extends to the left and right of the book around the extension rod 120, and is used to press the lower surface in contact with both unfolded pages. The push bar 131 has a shape similar to arms opened from the extension rod 120, and prevents the opened pages from closing or moving to another page by pressing both unfolded pages simultaneously with both arms. To this end, the ratchet portion 110 is provided with a configuration for performing a locking function to limit (prevent) the push bar 131 from rotating upward and an unlocking function to easily release the locking, etc., which will be described later. do.

The extension rod 120 and the pressing member 130 coupled thereto can be rotated on a virtual circumference around the rotation axis 111 in the ratchet portion 110, but the rotation is locked or unlocked by the ratchet portion 110. It can be locked.

One end of the extension rod 120 (opposite the side to which the pressing member is coupled) is coupled to the ratchet part 110, and the extension rod 120 and the pressing member 130 are connected to the rotation axis ( It is possible to meet around 111). The ratchet portion 110 does not restrict the extension rod 120 and the pressing member 130 from rotating in the forward direction, which is the direction in which the extension rod 120 and the pressing member 130 approach the book. However, rotation in the reverse direction, which is opposite to the forward direction, is basically restricted, but can be released according to the user's manipulation of the unlocking units (140:141-142).

The ratchet portion (110: 111 to 114) supports one end of the coupled extension rod 120 and provides a center of rotation, and at the same time, rotates the pressing member 130 in the reverse direction according to the user's operation, that is, the pressing member 130. The lifting rotation is restricted, and the restriction can be released by receiving the user's manipulation input through the unlocking unit 140.

The ratchet unit 110 includes a rotating shaft 111, a ratchet wheel array A112 consisting of a plurality of ratchet wheels 112, a stopper array A113 including a plurality of stoppers 113, and a plurality of linear springs 115. ) and includes a linear spring array (A115).

Each ratchet wheel (112:112-1 to 112-4) constituting the ratchet wheel array (A112) has a thick disk shape and has a tooth row (112a), which is a series of teeth along the circumference. Each tooth of the tooth row 112a is shaped like a triangle extending in the direction of the thickness of the disk, and the slope of the hypotenuse on one side of the triangle is steeper (larger) than the slope of the hypotenuse on the other side of the same triangle. When the pressing member 130 attempts to rotate upward in the restricted (locking) state, the hypotenuse with a steep inclination of the teeth meets the claw portion 113a of the stopper 113 so that it can no longer rotate (Figure 7(b) ) reference).

The tooth row 112a is formed only within the angular range A, which is a portion of the 360-degree angular range around the circumference, so that when the extension rod 120 and the pressing member 130 rotate upward beyond a certain angle, the user unlocks, which will be described later. Even if the unit 140 is not manipulated, the rotation of the extension rod 120 and the pressing member 130 is not restricted. As shown in Figures 1 to 3, in a state where the claw part 113a moves out of the angle range and moves to the outside of the tooth row 112a, even if the unlocking part 140 is not manipulated, the extension rod 120 and the pressing member (130) Meetings are not restricted. For example, teeth are formed on the ratchet wheel corresponding to the range in which the extension rod and the pressing member can lock the pressing state, and teeth are not formed on the ratchet wheel corresponding to other ranges. As shown, in places where teeth are not formed, the distance from the center of rotation to the circumferential surface is preferably shorter than the distance from the center of rotation to the tip of the teeth.

A rotation axis 111 is coupled to the rotation center of the ratchet wheel array (A112), and the rotation axis 110 is formed in each of the lateral frames 151-1 and 151-2 of the frame 160 (151a-1,151a-). By being inserted into 2), it is supported by the side frame and can be rotated.

According to one feature of the present invention, N number of ratchet wheels 112 (N is a natural number of 2 or more) are combined in parallel to form a ratchet wheel array A112, and in the illustrated embodiment, four ratchet wheels are integrated into one. Combined to form a ratchet wheel array (A112). The first ratchet wheel (112-1) and the second ratchet wheel (112-2) are integrally coupled via the first disk-shaped spacer (116-1), and the third ratchet wheel (112-3) and the fourth ratchet wheel are (112-4) is integrally coupled with the second disk-shaped spacer (116-2). And, a first disc-shaped body 117-1 integrally coupled with the side surface of the second ratchet wheel, a second disc-shaped body 117-2 integrally coupled with the side surface of the third ratchet wheel, and the first disc-shaped body The body is composed of a lower body 117-3 that connects the second disk-shaped body and the second disk-shaped body at the lower part. The body (lower body) is provided with a coupling hole 118 into which the extension rod is inserted and coupled, and the upper part of the lower body 117-3 in the body forms a space 119, so that the puller 141, which will be described later, is used. It provides a space where it can operate freely.

In this way, in the present invention, a ratchet wheel array (A112) is formed by combining a plurality of ratchet wheels 112 in parallel laterally, which solves the problem of the model consisting of only a single ratchet wheel, which was a model prior to the present invention (private). It is for this purpose.

Many books are thick, so in this case, the book will not open well unless you press it with a strong force. In order to hold the book while pressing it with a strong force, each tooth of the ratchet wheel must be strong. Therefore, the size of the teeth must be increased to some extent, the pitch angle occupied by a single tooth (or the circumferential length occupied by a single tooth) cannot be reduced below a certain level, and the number of teeth that can be made in a ratchet wheel is limited. Assuming that the pitch angle or circumferential length of a single tooth is reduced below a certain level, it is difficult to obtain appropriate rigidity that can withstand pressing down on a bookshelf.

Even if the ratchet wheel is made of strong plastic to obtain appropriate rigidity, the teeth cannot be made very small due to durability issues, and the fact that the size of the teeth (pitch angle, circumference length) must be above a certain level causes another problem. , When repeating the experiment by creating a realistically feasible number of teeth, it was found that the unit movement distance of the pressing member 130 when moving one tooth was too large.

Here, n is the number of teeth when converted into teeth forming 360 degrees, h is the length of the extension rod, θ is the pitch angle of one tooth, is the unit movement distance of the pressing member.

If the pitch angle (θ) is large, the unit movement distance of the pressing member also becomes large, which poses a problem in fixing the book. for example, If it is 2 cm, it becomes difficult to fix the book with a precision of 2 cm or less, and many cases have occurred where the pressing member is unable to properly press the bulging book when it is caught in an awkward position. In this way, the existing model consisting of only a single ratchet wheel had a problem in that the unit movement distance of the pressing member was too large compared to the thickness of the book, resulting in many cases in which the book was not pressed completely.

In order to solve this problem, the present invention pursues the effect of increasing the effective number of teeth by constructing multiple ratchet wheels overlapping without sacrificing the tooth size of the tooth row.

Multiple ratchet wheels with tooth rows of the same pitch and size are overlapped after adjusting the angle only slightly (arranging the phase slightly differently within the pitch angle). Then, you can achieve the same effect as a ratchet wheel with a large number of teeth. The greater the number of overlapping ratchet wheels, the greater the effective number of teeth.

According to the present invention, the tooth rows 112a of each ratchet wheel 112 included in the ratchet wheel array A112 have a phase difference with each other within the range of the pitch angle, and each ratchet included in the ratchet wheel array A112 The tooth rows 112a of the wheel 112 are arranged in different phases with an angle difference of p1/N (p1 is the pitch angle of the teeth formed in each ratchet wheel, and N is the number of ratchet wheels included in the ratchet wheel array). do.

Referring to FIG. 5, when the pitch angle of the teeth constituting the tooth row of each ratchet wheel 112 is p1 and N ratchet wheels 112 are configured in parallel, each ratchet wheel 112 has p1/N=p2. It is arranged slightly offset with an angle difference, and the effective pitch angle of the ratchet wheel array (A112) becomes p2, which is 1/N times smaller than the pitch angle (p1) of a single ratchet wheel.

Meanwhile, Figure 6 is a side view of a comparative example for comparing and explaining the case where the pitch angle p2 is configured with a single ratchet wheel rather than the ratchet wheel array A112 composed of a plurality of ratchet wheels.

In the comparative example of FIG. 6, the pitch angle is set to be the same as the effective pitch angle p2 of the ratchet wheel array (A112) in FIG. 5, and the base length d2 of each tooth is the same as the effective pitch angle p2 of the ratchet wheel array (A112) in FIG. Because it is reduced to 1/N compared to the length of the base, the rigidity and durability of the teeth are greatly reduced. As can be seen in the figure, if the number of teeth is increased, the circumferential length of the teeth inevitably becomes thinner, making them very weak. However, using the present invention, the base length (d1) of the teeth can be increased, thereby increasing rigidity and durability. can do.

The stopper (113:113-1 to 113-4) is provided with a claw portion (113a:113a-1 to 113a-4) that meshes with one or more teeth of the tooth row (112a) of the ratchet wheel (112) to form a ratchet wheel ( 112) Restricts rotation in the reverse direction or releases it depending on the user's operation. The stoppers 113 are inserted two each into the shaft rods 151b-1 and 151b-2 of the two side frames 151-1 and 151-2, and can be rotated based on the stopper rotation center 13c, and have an approximately 'L' shape. It has a bent cantilever shape, and a stopper rotation center (113c) is formed on one arm and a claw portion (113a) is formed on the inner surface of the other arm. When the claw portion 113a engages with the teeth of the tooth row, it has a steeply inclined surface that supports the steeply inclined hypotenuse of the teeth and limits (locks) the reverse rotation of the ratchet wheel (ratchet wheel array). The stopper rotation center 13c is spaced apart from the rotation axis 111 of the ratchet portion 110 in the direction where the pressing member 130 is located.

Then, a stopper array (A113) is formed by forming a corresponding stopper (113:113-1 to 113-4) for each ratchet wheel (112) included in the ratchet wheel array (A112). Unlike the ratchet wheels of the ratchet wheel array, which are all integrated, each stopper in the stopper array operates independently of each other. Therefore, when a certain moment is captured, the degree to which the claw portion 113a of each stopper enters the teeth of the tooth row may be different.

In addition, the linear spring 115 is fixed to the upper part of the front frame by inserting one end of it into a hole formed in the upper part of the front frame (152:152-1, 152-2), and the other end is fixed to the spring guide groove of the stopper 113 ( The stoppers 113 are pressed while seated at 113d: 113d-1 to 113d-4 so that the claw portion 113a of each stopper 113 is pressed in the direction of the ratchet wheel 112. The linear spring 115 is provided in a number corresponding to the number of ratchet wheels and stoppers, forming a linear spring array (A115). For example, a linear spring may be made of an elastic thin wire, such as a piano wire.

The unlocking unit 140 performs the function of lifting one end (free end) of the stopper 113 when operated by the user to allow the claw unit 113a to come out of the meshed teeth of the ratchet wheel 112. (140) includes a puller 141 that can slide along the extension rod 120, and a lifter 142 that lifts the free end of the stopper 113 according to the operation of the puller 141.

At one end of the puller 141, a puller hanger 141a that can be pulled with the user's finger is formed. The puller hanger 141a is shaped like a protrusion bent upward from one end of the puller rod 141 and is held by the index or middle finger. It rises to a length sufficient to hang, and may be configured above (obliquely above) the extension rod cap 161. When releasing the locking state and rotating the extension rod upward, press the front of the extension rod cap 161 with the user's thumb, pull the puller hanger 141a with the index finger of the same hand, and then rotate the extension rod in the reverse direction. If you do so, you can perform both unlocking and reverse rotation with one hand, allowing you to use your other hand for other actions, such as turning the pages of a book.

At the other end of the puller 141, a puller actor 141c is formed that contacts the lifter arc 142a of the lifter 142 to rotate the lifter 142, and at the other end of the puller rod 141b, the puller rod 141b is formed. It has the shape of a small cylinder standing vertically on both sides.

The puller rod (141b) is a long rod (rod) that connects the puller hanger (141a) and the puller actor (141c), and is the part that passes between the ratchet wheels of the ratchet wheel array, that is, the lower body (117-3). The portion passing through the space 119 includes an upwardly curved portion, and in order to be slidably coupled to the extension rod 120, a first puller clip is provided at the lower portion of the puller rod 141b to clamp the extension rod. (141d-1) and the second puller clip (141d-2) are formed integrally with the puller rod at intervals from each other.

The lifter 142 has a lifter rotation center 142c on one side of the lifter body 142e, and the through hole formed at the lifter rotation center is the through hole 151e-1, 151e-2 of the side frame and the through hole of the upper frame. It communicates with (154a-1, 154a-2), and pins are inserted into these through-holes so that the lifter can be rotated while being supported by the side frame based on the center of the lifter congregation. The lifter arc 142a is two arc-shaped structures that extend downward from the lifter body 142e and are arranged adjacent to and parallel to each other at intervals, and are disposed at a position surrounding the ratchet wheel array A112. The lifter actor 142d extends from the lifter body where the lifter rotation center is formed, and functions to lift one end of the stopper 113 by contacting one end (free end) of the stopper 113, and has a shape bent approximately in the shape of 'ㄴ'. is doing The lifter body, lifter actor, and lifter arc are integrated and can rotate based on the lifter rotation center 142c.

Meanwhile, a mounting clip 230 is coupled to the upper part of the upper frame 154. After rotating the extension rod in the reverse direction by approximately 90 degrees, the erected extension rod 120 is held and mounted, so that external force is removed. This is to ensure that the extension rod lights remain erect.

Figure 7 is a side view showing the operating state of the bookshelf pressing module. Figure 7(a) shows the state shown in Figures 1 and 2, and Figure 7(b) shows the state in which the book is pressed and locked. , Figure 7(c) shows a state in which the lock is released (unlocked state) to turn the pages.

Hereinafter, with reference to FIGS. 1 to 7, the operation of the bookshelf pressing module 100 in the reading stand of the present invention will be examined.

The extension rod 120, the pressing member 130, and the puller rod 141 (referred to as the 'rotating part') of the bookshelf pressing module 100 are standing close to the post 220 (the mounting clip 230 ) may be holding the extension rod 120), the user places a book on the support plate 210 of the reading stand, opens the desired page, and then rotates the rotating portion around the rotating axis 111 to open the book. It can be moved to press the top of the. At this time, the user just needs to hold the rotating part and rotate it without having to manipulate the unlocking unit 140. In the meantime, the user can go through a state as shown in FIG. 7(a). When the user rotates the rotating part in the direction ('forward') (direction of arrow P) approaching the book, even if the claw part (113a) of the stopper (113) meets the teeth of the ratchet wheel (112), the ratchet wheel (112) ) It meets the teeth at an angle, so it rotates smoothly by riding over them.

And, even if the user releases his/her hand after sufficiently pressing the open book with the pressing member 130, the claw portion 113a is sufficiently engaged between the teeth 112a in any one ratchet wheel 112 of the ratchet wheel array. status (locked status). If the user completely removes his/her hand from the rotating part (pressing member, etc.), the locking state will be entered immediately or after moving an angle smaller than the effective pitch angle (p2=p1/N) in the reverse direction (direction of arrow R), the maximum will be in a locked state after moving the effective pitch angle p2 in the reverse direction. Accordingly, even if the user completely removes his/her hand from the book or the bookshelf pressing module 100, the opened state of the book can be maintained. For example, the bookshelf pressing module remains in the state shown in FIG. 7(b).

On the other hand, part of the contents of the opened book may be obscured by the pressing member 130. When you want to read the hidden part (or take a picture with a camera), the pressing member 130 may be slightly slid forward or backward. By changing the hidden part or moving it to the blank part, all parts can be read.

And, when the user wants to turn the page and read another page, press the front of the extension rod cap 161 with the thumb of one hand, pull the puller hanger 141a with the index finger of the same hand, and then rotate the rotating part in the reverse direction. You can do it. When the user pulls the puller hanger 141a forward, the puller actor 141c configured at the other end of the puller rod 141b pushes the lifter arc 142a of the lifter 142 to move the lifter 142 in the reverse direction (clockwise in the drawing). and rotates in the same direction as the R direction), and as a result, the lifter actor 142d overcomes the elastic force of the linear spring and lifts the free ends of all stoppers 113. Accordingly, the claw portions 113a of all stoppers 113 are deviated outside the tooth row of the ratchet wheel 112. At this time, the claw portion of the stopper that was most deeply engaged is activated first to prevent the claws 113a from deviating outside the tooth row. After starting, the claws of all stoppers deviate outside the tooth row.

According to the present invention, both unlocking and reverse rotation can be performed with one hand of the user, so the other hand can be used for other actions, such as turning the pages, and the rotation part can be rotated to a degree that does not interfere with turning the pages. After doing so, you can turn the pages with your other hand.

Meanwhile, the series of teeth 112a are formed only within the angular range A, which is part of the 360-degree angular range of the circumference. As a result, when the extension rod 120 and the pressing member 130 rotate upward beyond a certain angle, the rotation of the extension rod 120 and the pressing member 130 is not locked even if the unlocking part 140 is not pulled.

Based on the illustrated example, when the state of FIG. 7(a) is reached during reverse rotation, the claw portion 113c is released from the tooth row, so even if the user no longer pulls the puller hook portion 141a, subsequent reverse rotation is possible. This is freely possible. By allowing the teeth to be formed only within an angular range that is part of the 360-degree angular range of the circumference, there is an effect of improving user convenience.

Assuming that the teeth are formed throughout the 360-degree angular range of the circumference, the user must continuously hold the puller hook 141a of the unlocking portion throughout the process of rotating the rotating portion in the reverse direction to secure space for turning pages. There is an inconvenient problem of having to pull it.

After turning the page, the rotating portion can be rotated in the forward direction to pressurize the book and place it in a locked state as described above.

Looking at the user operation process to turn a bookshelf, (pull the unlocking part with one hand and rotate it in the reverse direction → turn the page with the other hand → turn the turning part with one hand (the same hand as the hand that pulled the unlocking part and turned it in the reverse direction) You can perform the action of turning the pages of a book through the process of pressing and locking (there is no need to pull the unlocking part in this process, and the other hand can also press the book, but it is not essential). Using the reading stand of the present invention has the advantage of making the user's operation process of turning the pages simpler and easier.

In addition, according to the present invention, the pressing member can properly open the book and maintain the pressed state, and the page turning operation is easier, so there is an advantage that inputting book contents using a camera or using a magnifying glass becomes more convenient.

In addition, the contents of the book can be easily entered into a computer or smartphone by using the user's smartphone, etc., or by using a camera module mounted through the boom module of the present invention. At this time, the pressing member is moved over the margin of the book. If you do so, the contents of the book will not be obscured, and since the user does not have to use his or her hands to maintain the pressed state, the user can easily operate the camera.

100: Bookshelf pressing module 110: Ratchet part
111: rotation axis 112: ratchet wheel
113: stopper 115: linear spring
120: extension rod 130: pressing member
131: push bar 132: slider
140: unlocking part 141: puller
142: lifter 151: side frame
152: front frame 153: lower frame
154: upper frame 210: support plate
220: Post 230: Holding clip
240: Boom module 250: Camera module

Claims (13)

A pressing member 130 for pressing the upper part of the opened book;
An extension rod 120 that is slidably coupled to the pressing member 130 and extends in the longitudinal direction;
It is configured to include a bookshelf pressing module 100 including a ratchet portion 110 to which one end of the extension rod 120 is coupled,
The extension rod 120 and the pressing member 130 are characterized in that they can be rotated around the rotation axis 111 formed in the ratchet portion 110.
reading desk. In claim 1,
The ratchet portion 110 does not restrict the extension rod 120 and the pressing member 130 from rotating in the forward direction, which is the direction approaching the book, but restricts them from rotating in the reverse direction, which is opposite to the forward direction, or the user to be released according to the operation of,
reading desk. In claim 2,
The ratchet part 110 is,
A ratchet wheel 112 having a row of teeth 112a, a series of teeth along the circumference;
A stopper ( 113); Consisting of,
reading desk. In claim 3,
The stopper 113 can be rotated based on the stopper rotation center 13c, and the claw portion 113a is formed on a cantilever bent in an 'L' shape,
The stopper rotation center 13c is spaced apart from the rotation axis 111 of the ratchet portion 110 in the direction in which the pressing member 130 is located.
reading desk. In claim 3,
N pieces of the ratchet wheel 112 (N is a natural number of 2 or more) are combined in parallel to form a ratchet wheel array A112,
The stopper array (A113) is formed by forming the stopper (113) for each ratchet wheel (112) included in the ratchet wheel array (A112),
The tooth rows 112a of each ratchet wheel 112 included in the ratchet wheel array A112 have a phase difference with each other,
reading desk. In claim 5,
The tooth row 112a of each ratchet wheel 112 included in the ratchet wheel array A112 is p1/N (p1 is the pitch angle of the teeth configured in a single ratchet wheel, and N is the pitch angle of the teeth included in the ratchet wheel array. arranged in different phases with an angular difference of
reading desk. In claim 5,
The bookshelf pressing module 100,
One end is fixed and the other end has a plurality of linear springs 115 that press the stopper 113 to press the claw portion 11a of each stopper of the stopper array A113 in the direction of the ratchet wheel 112. Further comprising a linear spring array (A115) including,
reading desk. In claim 5,
Further provided is an unlocking part 140 that lifts one end of the stopper 113 during user operation to allow the claw part 113a to come out of the engaged teeth of the ratchet wheel 112,
reading desk. In claim 8,
The unlocking unit 140,
A lifter actor 142d, which contacts one end of the stopper 113 and lifts one end of the stopper 113, and an arc-shaped lifter arc 142a surrounding the ratchet wheel array A112 are integrally formed, A lifter 142 that can be rotated based on the lifter rotation center 142c;
It can slide along the extension rod 120 and has a puller hanger portion 141a at one end that can be pulled by the user's finger, and a puller at the other end that contacts the lifter arc 142a to rotate the lifter 142. Consisting of a puller 141 in which the actor 141c is configured,
reading desk. In claim 8,
The tooth row (112a) is formed only within the angular range (A), which is part of the 360-degree angular range of the circumference,
If the extension rod 120 and the pressing member 130 rotate upward beyond a certain angle, the extension rod 120 and the pressing member 130 may rotate even if the user does not manipulate the unlocking unit 140. so as not to be limited,
reading desk. In claim 1,
The pressing member 130 is,
A slider 132 capable of sliding along the extension rod 120 within a limited range;
Consisting of a push bar (131) coupled to the slider (132) and extending to the left and right of the book,
reading desk. In claim 5,
A post (220) standing vertically from the flat support plate (210);
It is coupled to the post 220 via a boom module 240, and further includes a camera module 250 for photographing the book from above the book, away from the book,
The bookshelf pressing module 100 rotatably supports the ratchet wheel array A112 and the stopper array A113, and has a frame portion 150 that can be raised and lowered along the post 220 and then fixed. Equipped with more,
reading desk. In claim 1,
Further provided with a mounting clip 230 for holding and mounting the erected and seated extension rod 120,
reading desk.

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