JP5641104B2 - Learning desk and furniture combining learning desk and bookcase - Google Patents

Description

  The present invention relates to a learning desk and a combination furniture of a learning desk and a bookcase, and more particularly to a learning desk capable of adjusting the depth width of a top board and a reconfigurable furniture configured by combining the learning desk and a bookcase. Is.

  2. Description of the Related Art Various learning furniture that combines a learning desk and a bookshelf has been provided. For example, one side of the top of the desk is inserted between the two sides of the bookshelf and connected to the shelf of the bookshelf, etc., or the upper shelf is placed behind the top of the learning desk. A desk that can be fixed and used as a study desk with shelves is provided. In addition, a learning desk and a bookshelf that are used independently are often combined, and the bookshelf is installed in close contact with the rear edge of the learning desk.

  Here, the learning desk with a shelf on which the upper shelf is placed on the back of the top of the learning desk has a short distance to the upper shelf. Although it is easy to put in and out, there is a problem that cannot be avoided structurally such that the top surface of the top plate becomes narrow. On the other hand, when a bookcase is installed in close contact with the rear edge of the learning desk, the space for the tabletop can be secured, but the distance to the bookcase is long. It is not easy to put in and out books. In addition, depending on external requests such as increasing the indoor space, internal requests such as the purpose of use and preferences, there is also a demand for desks with a narrow depth of the top board, and there is a desk that can adjust the depth of the top board according to the situation. This is what is desired.

  Patent Document 1 discloses a desk with a bookshelf in which a bookshelf is detachably erected on the rear upper surface of a desk body including a top board and a top board support that supports both sides of the top board. Attaching the plate to the top plate support so that the front and rear positions can be changed, and both end portions of the auxiliary top plate that can be attached to an empty space generated behind the top plate when the top plate is repositioned forward A desk with a bookcase is disclosed, which is detachably attached to the rear side surface of the top plate support. Thereby, since the depth dimension of a desk can be expanded, the work area on a desk can be increased and it can also be used as a desk for a personal computer. However, the work of changing the auxiliary top plate involves the work of changing the drawer held on the top plate and the drawer support portion back and forth with respect to the top plate support, and thus has a problem that it takes time.

  Further, in Patent Document 2, a top plate provided horizontally between both leg plates is formed so as to be able to be pulled forward by a predetermined stroke, an auxiliary plate is disposed at the rear end of the top plate, It is formed so that it can be selected between a horizontal posture that forms the same plane as the top plate and a vertical posture that is buried below the rear part between both leg plates, and the front and rear width of the auxiliary plate is substantially the same as the stroke of the top plate A desk formed to dimensions is disclosed. However, when extending the depth of the desk, the top plate is pulled forward with respect to the leg plate, so that the front portion of the top plate protrudes from the leg plate, and the center of gravity becomes a forehead and is unstable. From the viewpoint of stability, it is desirable that the top plate is fixed to the leg portion.

Japanese Patent No. 3448842 Japanese Utility Model Publication No. 60-191225

  Therefore, in view of the above-described situation, the present invention intends to solve the problem that the top plate is fixed to the leg and the balance of the center of gravity is stable, but the effective depth width of the top plate is reduced. A learning desk that can be easily expanded and reduced is provided, and the learning desk is combined with a bookshelf so that the book shelf is placed in close contact with the rear end of the top board or the book shelf is placed at the rear of the top board. Even when the modes are realized, the combination furniture of the learning desk and the bookshelf, which is easy to use in each mode, is provided.

  In order to solve the above-mentioned problem, the present invention supports both sides of the top plate with legs, and sets the rear ends of both legs so as not to protrude rearward from the rear end of the top plate. An extension top plate is provided on both legs via an arm so as to be pivotable up and down, and the extension top plate is connected to the rear end of the top plate so that the top plate and the top surface are flush with each other, and the legs A learning desk that is substantially perpendicular to the rear part of the body and is capable of taking a stored posture that does not protrude rearward from the rear end of the top plate, and is parallel to the depth direction on both sides of the lower surface of the extended top plate in a horizontal state. A long hole parallel to the upper surface of the extended top plate is formed in the base end side protruding portion of the fixed support arm, and the upper and lower sides are perpendicular to the longitudinal direction of the long hole from the long hole to the extended top plate side. A support hole penetrating through the long hole is formed, and the support shaft passing through the long hole is fixed to the inner surface side of the leg body so as to rotate vertically and along the long hole. In a horizontal posture in which the extended top plate is rotated upward and horizontally moved forward, and the fixing screw passed through the support hole is screwed into the screw hole on the lower surface of the top plate. A learning desk characterized in that is held (claim 1).

And this invention consists of the above-mentioned learning desk and a bookshelf, and this bookshelf is provided with the fixed shelf board whose top surface is the same height as the top board, and the extended top board is the rear end of the top board in the stowing position. A combination of a learning desk and a bookshelf that enables the front end of the fixed shelf of the bookcase to be joined to the front end of the fixed shelf of the bookcase to the rear end of the extended top in the horizontal position. Furniture was constructed (claim 2 ).

  The combined furniture of the learning desk and bookcase of the invention according to claim 1 as described above supports both sides of the top board with legs, and the rear ends of both legs do not protrude backward from the rear end of the top board. An extension top plate is provided on both legs via a pair of left and right support arms so as to be pivotable up and down, and the extension top plate is continuous with the rear end of the top plate and is flush with the top plate. A learning desk that can take a horizontal posture and a retracted posture that is substantially perpendicular to the rear part of the leg and does not protrude rearward from the rear end of the top plate. A long hole parallel to the top surface of the extended top plate is formed in the base end side protruding portion of the support arm fixed to both sides of the bottom surface in parallel with the depth direction, and the long hole is formed on the extended top plate side from the long hole. A support hole penetrating up and down so as to be orthogonal to the longitudinal direction of the leg is formed, and the support shaft passing through the long hole is on the inner surface side of the leg Fixed and vertically movable and horizontally movable along the long hole, and in the state of horizontal posture in which the extended top plate is rotated upward and horizontally moved forward, a fixing screw passed through the support hole is attached to the top plate. Since the posture is held by screwing into the screw holes on the lower surface of the top plate, the balance of the center of gravity is always stable with a rigid structure in which both sides of the top plate are supported by legs, and the extended top plate is in a horizontal posture. The top plate and the extended top plate can be integrated into a learning desk with a wide depth, and the extended top plate can be moved backward from the rear end of the top plate when the extended top plate is in the retracted position. Since it does not protrude, it can be placed with the rear end of the top plate in close contact with the wall or the front of the bookshelf, especially when combined with a bookshelf It is easy to put in and out etc. In this case, the extension table can be moved horizontally back and forth due to the relationship between the long hole and the support shaft, so that the front end of the extension table can be joined closely to the rear end of the table, and the horizontal posture is maintained. The horizontal posture can be reliably maintained by inserting the fixing screw into the support hole of the support arm and screwing it into the screw hole on the lower surface of the top plate.

According to the combination furniture of the learning desk and the bookshelf according to claim 2 , the learning desk includes the above-described learning desk and the bookshelf, and the bookshelf includes the fixed shelf with the same height as the top plate, and the extended ceiling. The front end of the fixed shelf plate of the book shelf can be joined to the rear end of the top plate in the retracted posture, and the front end of the fixed shelf plate of the book shelf is attached to the rear end of the extended top plate in the horizontal posture. Since the expansion table can be joined, if the rear end of the learning desk is placed in close contact with the front of the bookshelf in the horizontal position, the fixed shelf of the bookcase will be joined to the rear end of the table. The top and fixed shelves are integrated into a desk with a wide depth, and even elementary school children can easily put books in and out of the bookshelf while sitting in front of the desk. is there.

It is a perspective view of the use condition which combined the learning desk and bookcase which concern on this invention. It is a longitudinal cross-sectional view in the storing attitude | position of the learning desk which concerns on this invention. It is an abbreviated plan view in the horizontal posture of the learning desk. It is a principal part longitudinal cross-sectional view of a state in which the extended top plate is in the retracted posture. It is a principal part longitudinal cross-sectional view of a state with an extended top plate in a horizontal posture. It is a perspective view which shows the independent use state of a learning desk and a bookshelf. It is a perspective view which shows the use condition which mounted the upper bookcase which the expansion top plate isolate | separated in the rear part of the learning desk of a horizontal attitude | position, and provided the lower bookcase side. It is a perspective view which shows the use condition which installed the upper shelf isolate | separated in the rear part of the learning desk of a horizontal attitude | position with the extended top plate, and installed independently in the state which connected the lower book shelf and the lower shelf. It is a side view of the learning desk of 2nd Embodiment which concerns on this invention. It is a side view of the use condition which combined the learning desk and the bookshelf similarly. The learning desk of 3rd Embodiment is shown, (a) is a perspective view of the state in which the extended top plate is in the retracted posture, and (b) is attached with the rear grounding member protruding rearward with the extended top plate in the horizontal posture. FIG. FIG. 2 also shows a learning desk according to the present invention, in which (a) is a side view of the extended top panel in the retracted position, and (b) is attached with the rear grounding member protruding rearward with the extended top panel in the horizontal position. FIG. Similarly, it is a vertical cross-sectional view of the main part of the extended top plate in a retracted posture state. It is a principal part longitudinal cross-sectional view of the state where an expansion top plate is a horizontal attitude | position similarly. It is an explanatory perspective view in the case of using a learning desk and a bookshelf in a state where the extended top plate is in a retracted posture. It is a fragmentary longitudinal cross-sectional view of a state where the front of the bookshelf is connected to the rear part of the learning desk with the extended top plate in the retracted position. It is a fragmentary longitudinal cross-sectional view which shows the state which connected the front surface of the bookshelf to the rear part of the learning desk of a state with the extended top plate in a horizontal posture.

  Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. 1 to 5 show a learning desk according to the first embodiment of the present invention, FIGS. 1 and 6 to 8 show a combination furniture of a learning desk and a bookcase, and FIGS. 9 and 10 show the first embodiment of the present invention. 2 shows a learning desk according to the embodiment, in which A is a learning desk, B is a bookshelf, 1 is a top board, 2 is a leg, 3 is an extended top board, 4 is a support arm, and 5 is a recess. .

  The learning desk A according to the present invention is a learning desk that supports both sides of the top board 1 with the legs 2 and 2 and places the rear end of the top board 1 in close contact with the front surface of the wall surface or the book shelf B. The rear ends of both legs 2 are set so as not to protrude rearward from the rear end of the top plate 1, and the extended top plate 3 is directly attached to the top plate 1 or the legs 2 or indirectly through another member. A horizontal posture in which the extended top plate 3 is continuous with the rear end of the top plate 1 and is flush with the top plate 1, and a retracted posture in which the extended top plate 3 does not protrude rearward from the rear end of the top plate 1 It is possible to take

  Here, as shown in FIGS. 2 to 5, the extended top plate 3 is provided on both legs 2, 2 so as to be vertically rotatable via support arms 4, 4, and at the rear part of the legs 2. A recessed portion 5 or a recessed step portion for accommodating the extended top plate 3 in a vertical retracted posture is provided. More specifically, a long hole 7 parallel to the upper surface of the extended top plate 3 is formed in the base end side protruding portions 6 and 6 of the support arms 4 and 4 fixed to both sides of the lower surface of the extended top plate 3 in parallel with the depth direction. A support hole 8 is formed on the side of the extended top plate 3 from the long hole 7, and the support shaft 9 passed through the long hole 7 is fixed to the inner surface side of the leg 2 so that it can be turned up and down. At the same time, the extended top plate 3 is held in the horizontal posture and the retracted posture by fixing the fixing screws 10 passed through the support holes 8 to the screw holes 11 on the inner surface of the leg plate 2.

  Further, a plurality of projections 14 are formed on one of the rear end surface 12 of the top plate 1 and the front end surface 13 of the extended top plate 3, and the other is an engagement hole for receiving the projections 14,. 15... Are formed. In this embodiment, protrusions 14 are formed on the front end surface 13 of the extended top plate 3, and engagement holes 15 are formed on the rear end surface 12 of the top plate 1. Thereby, the rear end of the top plate 1 can be brought into close contact with the front surface of the wall surface or the bookshelf B while the extended top plate 3 is in the retracted posture. When the projections 14 are formed on the rear end surface 12 of the top plate 1, they can be brought into close contact with each other by forming relief portions or engaging portions at corresponding portions of the bookcase B.

  Next, details of each part of the learning desk A will be described. The learning desk A of this embodiment is made of wood, and each member is made of wood. The leg 2 constitutes a quadrilateral frame by connecting the lateral members 17, 17 between the upper and lower ends of the support legs 16, 16 arranged in the front-rear direction. Further, a support frame 19 that holds the drawers 18 so as to be able to be pulled out is fixed to the lower surface of the top plate 1 so as to leave both sides, and the upper end of the leg 2 is connected to the side surface of the support frame 19. In addition, the upper end of the leg 2 is firmly fixed to the lower surface of the top plate 1 with a pin dowel or the like. The connecting member 20 is connected between the lower rear ends of both legs 2 and 2 or the curtain is connected between the rear ends of both legs 2 and 2 to increase the rigidity.

  And the base end side protrusion part 6 of the said support arm 4 is pivotally supported by the support shaft 9 and the long hole 7 on the inner surface of the upper end part of the rear side support leg 16 of the said leg 2. Further, at the upper end portion of the rear support leg 16, when the extended top plate 3 takes the horizontal posture and the retracted posture, screw holes 11, 11 are provided at positions corresponding to the support holes 8 formed in the support arm 4. It is provided by burying unime nuts. Further, a recess 5 for accommodating the extension top plate 3 is formed in the upper rear end portion of the rear support leg 16 so that the extension top plate 3 is in the retracted position in which the extension top plate 3 is substantially vertical. It is set so as not to protrude rearward from the rear end of the top plate 1.

  The learning desk A of the present embodiment has a so-called “top board win” structure in which the upper ends of the legs 2 and 2 are joined to the lower surfaces of both sides of the top board 1, and therefore the lateral width of the extended top board 3 is set to the lateral width of the top board 1. The both sides of the extended top plate 3 in the retracted position come into contact with the rear ends of both legs 2 and 2 on the premise of matching. Therefore, a recess 5 is provided at the rear end of the leg 2. On the other hand, in a learning desk having a so-called “leg winning” structure in which the upper ends of the legs 2 and 2 are exposed from both sides of the top board 1, on the premise that the horizontal width of the extended top board 3 matches the horizontal width of the top board 1. Since the extended top plate 3 in the retracted position can be accommodated between the two legs 2, the escape as in the concave portion 5 is unnecessary.

  Next, the bookshelf B used in combination with the learning desk A will be described with reference to FIGS. 1 and 6 to 8. The book shelf B includes a fixed shelf 21 having the same height as the top plate 1. Thereby, as shown in FIG. 1, the front end of the fixed shelf 21 of the book shelf B can be joined to the rear end of the top plate 1 when the extended top 3 is stored.

  As shown in FIG. 6, the learning desk A and the bookshelf B with the extended top 3 placed in a horizontal posture can be used separately from each other. It is also possible to use the book shelf B in close contact with one side. Here, it is arbitrary to use the learning desk A with the extended top 3 as the retracted posture as an independent desk with a narrow depth.

  The book shelf B includes a lower book shelf B1 provided with the fixed shelf plate 21 and an upper book shelf B2 that is detachably mounted on the lower book shelf B1. Accordingly, as shown in FIG. 7, the upper bookcase B <b> 2 separated from the bookcase B in the horizontal posture is placed and fixed on the rear part of the top plate 1 of the learning desk A and the upper surface of the extension table 3. A learning desk with a desk shelf can be constructed. Further, the upper shelf B2 can be separated into a lower shelf B21 and an upper shelf B22, and the lower shelf B21 or the upper shelf B22 can be separated from the rear of the top 1 of the learning desk A and the extended top when the extended top 3 is in a horizontal position. The learning desk can be configured by being placed and fixed on the upper surface of 3 and having a short desktop shelf.

  Here, the lower bookcase B1 and the upper bookcase B2 are connected by being attracted by the fixture 22 using the side edges of the fixed shelf 21. The fixture 22 has the same structure as that used in a conventional learning desk with a desktop shelf. Therefore, as shown in FIGS. 7 and 8, even when the upper book shelf B2, the lower shelf B21, or the upper shelf B22 is placed on the rear part of the learning desk A, the same fixture 22 can be used for connection. In the figure, reference numeral 23 denotes a lighting fixture, which can be attached to the back surface of the lower shelf B21 or the rear end of the extended top plate 3.

  Next, the second embodiment shown in FIGS. 9 and 10 will be described. In the present embodiment, the shapes of the leg 2 of the learning desk A and the lower bookcase B1 of the bookcase B are different. The leg 2 of the learning desk A is basically the same as the above-described structure, but the lower part of the front side support leg 16 is inclined backward so that the front and rear support legs 16 and 16 are secured in order to ensure stability. The grounding member 24 is fixed to the lower end of the rear end of the rear support leg 16, and a concave step portion 25 is formed except for the rear end portion of the rear support leg 16, so that the extended top plate 3 in the retracted position is attached to the concave step portion. 25 so that it does not protrude from the rear end of the top plate 1. Then, at the front end portion of the side plates 26 constituting the lower book shelf B1 of the book shelf B, the lower portion protrudes forward from the upper portion, and a relief portion 27 is provided at the upper portion and an overhang portion 28 is provided at the lower portion. By providing the overhanging portion 28 on the side plate 26 of the lower bookcase B1, the standing state of the bookcase B becomes stable, and when the overhanging portion 28 is installed close to the rear end of the learning desk A, the overhanging portion 28 It joins to the concave step part 25 of the leg body 2, and the space which accommodates the said expansion top plate 3 of a stowed position by the upper escape part 27 is ensured.

  Next, the third embodiment shown in FIGS. 11 to 17 will be described. As shown in FIGS. 11 to 14, the learning desk A according to the present embodiment is basically the same as the above-described embodiment, but supports both sides of the top board 1 with the legs 2 and 2. The rear end of the body 2 is set so as not to protrude rearward from the rear end of the top plate 1, and the extended top plate 3 is attached to the top plate 1 or the leg 2 directly or indirectly through another member. A horizontal posture in which the extended top plate 3 is continuous with the rear end of the top plate 1 and is flush with the top plate 1; and a retracted posture in which the extended top plate 3 does not protrude rearward from the rear end of the top plate 1. It is possible to take. A front grounding member 29 is attached to the front and lower end of the leg 2, and a rear grounding member 30 is detachably attached to the rear so that the front and rear attachment positions can be changed. Here, the extended top plate 3 has a top plate extended specification in which the extended top plate 3 is arranged in a horizontal posture to the rear of the top plate 1, and the rear grounding member 30 is shifted and rearranged so as to protrude rearward, thereby stably supporting. It is characterized by being able to.

  Here, as shown in FIG. 13 and FIG. 14, the learning desk A is provided with the extended top plate 3 so as to be pivotable up and down on both legs 2, 2 via support arms 4, 4. A recessed portion 5 or a recessed step portion for accommodating the extended top plate 3 in a retracted posture substantially perpendicular to the rear portion of the body 2 is provided. Further, elongated holes 7 parallel to the upper surface of the extended top plate 3 are formed in the base end side protruding portions 6 and 8 of the support arms 4 and 4 fixed in parallel to the depth direction on both sides of the lower surface of the extended top plate 3. In addition, a support hole 31 penetrating up and down from the elongated hole 7 to the extended top plate 3 side is formed, and a support hole 32 penetrating left and right is formed in the support arm 4 below the extended top plate 3. The support shaft 9 passed through the long hole 7 is fixed to the inner surface side of the leg 2 so that it can be turned up and down, and the extension screw 3 is passed through the support hole 31 in a horizontal posture. Are screwed into the screw holes 33 on the lower surface of the top plate 1, and the fixing screws 10 passed through the support holes 32 are screwed into the screw holes 34 on the inner surface of the leg plate 2 with the extended top plate 3 in the retracted position. Hold posture.

  Further, projecting pieces 35, 35 project from the lower surface to the front on both sides of the extended top plate 3, and receiving metal fittings 36 for fitting the projecting pieces 35 to the lower surface rear edge on both sides of the top plate 1, 36, when the extended top plate 3 is set in a horizontal posture, the protruding pieces 35, 35 are fitted into the receiving brackets 36, 36 to prevent the expansion top plate 3 from being bent in the vertical direction. Yes.

  Next, the detail of each part of the said learning desk A of 3rd Embodiment is demonstrated. The learning desk A of this embodiment is made of wood, and each member is made of wood. The leg 2 forms a substantially rectangular frame in side view by connecting the lateral members 17, 17 between the upper and lower ends of the support legs 16, 16 arranged in the front-rear direction. Further, a support frame 19 that holds the drawers 18 so as to be able to be pulled out is fixed to the lower surface of the top plate 1 so as to leave both sides, and the upper end of the leg 2 is connected to the side surface of the support frame 19. In addition, the upper end of the leg 2 is firmly fixed to the lower surface of the top plate 1 with a pin dowel or the like. The connecting member 20 is connected between the lower rear ends of both legs 2 and 2 to increase the rigidity.

  Here, as shown in FIG. 12, the connecting member 20 is configured by combining two plate members, a long vertical plate 20A and a horizontal plate 20B. Since the material plate is relatively thin for cost reduction, the vertical width of the vertical plate 20A is set sufficiently wide to increase the strength. Then, the horizontal plate 20B is joined to the upper and lower intermediate portions on the rear surface of the vertical plate 20A so as to have a substantially cross-sectional shape in cross section. As shown in FIG. 16, the height of the upper surface of the horizontal plate 20B is substantially the same as the height of the upper surface of the bottom plate 37 at the bottom of the lower bookcase B1. Usually, if the vertical width is increased in order to increase the strength of the vertical plate 20A, the upper end of the vertical plate 20A becomes higher than the upper surface of the bottom plate 37. When the vertical plate 20A is positioned rearward, if the rear end of the learning desk A is in close contact with the front surface of the bookshelf B, it is very difficult to put in and out books and the like placed on the bottom plate 37. . Therefore, the vertical plate 20A is set at the front / rear center portion or the front position of the rear support legs 16 and 16 to secure a sufficient space between the bottom plate 37 and the front edge. Further, since the horizontal plate 20B is joined to the rear surface of the vertical plate 20A and the upper surface thereof is set to be substantially flush with the upper surface of the bottom plate 37, the effective depth width of the bottom plate 37 is expanded forward, and the storage space is increased. The increase or the insertion and removal of articles such as books stored in the bottom plate 37 is facilitated.

  Further, as shown in FIGS. 11 and 12, when the rear grounding member 30 is attached to the front of the leg 2, the rear end of the rear grounding member 30 is the rear of the leg 2. When the rear grounding member 30 is attached to the rear of the leg 2 and the rear grounding member 30 does not protrude rearward from the rear end, the rear end of the rear grounding member 30 is the rear end of the leg 2 It is possible to take an extended leg form protruding rearward.

  Specifically, the front side grounding member 29 and the rear side grounding member 30 are substantially the same frame having a quadrangular cross section, and the front side when the rear side grounding member 30 is attached to the front side of the leg 2 is the front side. An adjuster 39 is provided in the recess 38 formed on the lower surface of the front end portion of the front side ground member 29 and the lower surface of the rear end portion of the rear side ground member 30 so as to absorb the unevenness of the floor surface. I have to.

  Next, a case where the learning desk A and the book shelf B according to the third embodiment are used in combination will be described with reference to FIGS. The book shelf B is mounted on the lower book shelf B1 having the same height as the top plate 1, the lower shelf B1 having the bottom plate 37 at the lower end, and the upper shelf detachably mounted on the lower book shelf B1. It consists of bookcase B2. As a result, as shown in FIGS. 15 and 16, the front end of the fixed shelf 21 of the book shelf B can be joined to the rear end of the top 1 in the retracted posture of the extended top 3. And in the state which joined the rear end of the said top plate 1, and the front end of the fixed shelf board 21, it connects with the connection bracket 40 so that it cannot displace back and forth and right and left mutually.

  In addition, as shown in FIG. 17, when the extended top plate 3 is in a horizontal posture, it is possible to join the rear end portion of the extended top plate 3 and the front end portion of the fixed shelf 21 of the book shelf B flush with each other. In this case as well, the extension top plate 3 and the fixed shelf plate 21 are connected to each other by the connecting metal fitting 40.

A study desk, B bookcase,
B1 lower bookcase, B2 upper bookcase,
B21 Lower shelf, B22 Upper shelf,
1 top plate, 2 legs,
3 Extension top plate, 4 Support arm,
5 recess, 6 protrusion,
7 long holes, 8 support holes,
9 spindles, 10 fixing screws,
11 screw hole, 12 rear end face,
13 front end face, 14 protrusion,
15 engagement holes, 16 support legs,
17 transverse members, 18 drawers,
19 support frame, 20 connecting member,
20A vertical plate, 20B horizontal plate,
21 fixed shelf board, 22 fixing tool,
24 grounding member, 25 concave step,
26 side plate, 27 relief part,
28 overhang, 29 front grounding member,
30 rear side grounding member, 31 support hole,
32 support holes, 33 screw holes,
34 screw holes, 35 protrusions,
36 bracket, 37 bottom plate,
38 recesses, 39 adjusters,
40 Connecting bracket.

Claims (2)

  Both sides of the top plate are supported by legs, and the rear ends of both legs are set so as not to protrude rearward from the rear end of the top plate, and can be turned up and down on both legs via a pair of left and right support arms An extended top plate is provided, and the extended top plate is continuous with the rear end of the top plate so that the top plate and the top surface are flush with each other. It is a learning desk that can take a storage posture that does not protrude backward from the end, and in a horizontal state, on the base end side protruding portion of the support arm fixed in parallel to the depth direction on both sides of the lower surface of the extended top plate A long hole parallel to the upper surface of the extended top plate and a support hole penetrating vertically from the long hole to the extended top plate side so as to be orthogonal to the longitudinal direction of the long hole. The support shaft passed through is fixed to the inner surface side of the leg body so as to be vertically movable and horizontally movable along the long hole. The learning is characterized in that the posture is maintained by screwing the fixing screw passed through the support hole into the screw hole on the lower surface of the top plate in a horizontal posture state that is rotated in the horizontal direction and moved forward. desk. A learning desk according to claim 1 and a bookshelf, wherein the bookshelf includes a fixed shelf with the same height as the top plate, and the extended top plate is at the rear end of the top plate in the retracted position. A furniture combining a learning desk and a bookshelf, wherein the front end of the fixed shelf can be joined, and the front end of the fixed shelf of the book shelf can be joined to the rear end of the extended top when the extended top is in a horizontal position.

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