JP2019083919A - Cover opening/closing device - Google Patents

Abstract

To provide a technique in a cover opening/closing device, capable of minimizing a projection amount of a cover in an open state where a cover is upright, while widely securing a storage space, in a simple operation.SOLUTION: The cover opening/closing device includes: a guiding object body inserted into a slide hole and having a rotational shaft part connected to the cover; and a guide part provided at a side wall of a body and guiding the guiding object body. With rotational turning of the cover about the rotational shaft, the guide part guides the guiding object body to change a longitudinal position of the rotational shaft in the slide hole according to an amount of rotational turning of the cover about the rotational shaft, where the position of the rotational shaft in the slide hole is located at a first position when the cover is in a closed attitude, and located at a second position, when the cover is in an open attitude, the second position being closer to the upright position of the cover than the first position thereto.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a cover opening and closing device.

  BACKGROUND Conventionally, there is widely known a table in which a code hole for inserting a cable connected to an electronic device such as a computer is provided on a top plate. As an apparatus which can open and close the cord hole, a cover opening and closing apparatus is known which includes a main body which can accommodate a cable or the like, and a cover which can open and close the cord hole by a turning operation by a user.

  As such a cover opening / closing device, for example, Patent Document 1 has a slide support portion for slidably supporting the lid downward when the lid is in the open position, and when the lid is in the open state, A cover device is disclosed in which all or part of the cover device can be stored below the upper surface of the frame.

Patent No. 4639779 gazette

  According to the cover device described in Patent Document 1, it is possible to store the whole or a part of the lid body below the upper surface of the frame in the open state, thereby securing the storage space while maintaining the storage space. The amount of protrusion of the lid can be reduced. However, in the cover device described in Patent Document 1, in order to store the lid, it is necessary to slide the lid downward, once the top surface of the lid is in an open state substantially orthogonal to the top surface of the frame. Yes, operation was complicated. Further, in the cover device described in Patent Document 1, the structure is complicated because the rotation mechanism for opening and closing the cover and the slide mechanism for sliding the cover downward are separately provided.

  The present invention has been made in view of the above problems, and it is an object of the present invention to reduce the amount of protrusion of the cover in the open state in which the cover is erected while securing a wide storage space in the cover opening / closing device. To provide a technology that can be realized with a simple operation.

In order to solve the above-mentioned subject, the present invention adopted the following means. That is, the present invention
A cover opening / closing device that allows opening and closing of an opening provided on a table top plate, wherein
A main body that forms the opening by being fitted to the top plate;
A cover attached to the main body and capable of changing the posture between a substantially horizontal closing posture covering the opening and the opening posture opened inside the opening while opening the opening;
Slide holes formed in a pair of side walls in the main body;
A guided body having a pivot shaft portion inserted into the slide hole and connected to the cover;
And a guide portion provided on the side wall of the main body portion for guiding the guided object.
The pivot shaft portion forms a pivot shaft of the cover,
The cover reaches the open position by pivoting about the pivot shaft from the closed position.
The guide portion guides the guided body as the cover pivots about the pivot axis, and the cover pivots according to the pivot amount of the cover about the pivot axis. Change the longitudinal position of the slide hole,
The position of the pivot shaft portion in the slide hole is at the first position when the cover is in the closing position, and at the rising position of the cover than the first position when the cover is in the opening position. It is a cover opening and closing device which becomes the approached 2nd position.

  According to the present invention, when the cover is in the open position, the position of the pivot shaft portion is set to the second position on the rising position side of the cover relative to the first position, thereby changing from the closed position to the open position. When changing the cover, the cover can be released to the upright position side. Thereby, it is possible to suppress that the cover interferes with the stored object in the cover device in the middle of the posture change. As a result, the protrusion amount from the opening of the cover in the open lid posture can be suppressed small to improve the appearance, and the internal space of the cover opening / closing device can be widely secured. Furthermore, according to the present invention, since the longitudinal position of the pivoting shaft can be changed according to the pivoting amount of the cover about the pivoting axis, only by a series of opening and closing operations by pivoting the cover, The position of the pivot shaft can be moved from the first position to the second position without complicated operations.

Also, the present invention is
It has a lock structure that locks rotation of the cover about the rotation axis,
The lock structure includes an elastic portion formed on the guided body, and a locking portion formed on the guide and locking the elastic portion.
The cover opening / closing device may be configured such that when the cover is rotated with a predetermined force or more, the elastic portion is deformed so that the locking of the elastic portion by the locking portion is released.

  According to this, it is possible to provide an appropriate click feeling (moderation feeling) to the user who holds the cover and performs the turning operation. The user can recognize, for example, the degree of opening and closing of the cover based on the click feeling. As a result, according to the present invention, it is possible to improve the feeling of operation in the opening and closing operation of the cover. Further, according to the present invention, since the elastic portion which is elastically deformed is formed on the guided body connected to the cover which the user holds and operates, a click feeling can be directly provided to the user. it can.

Furthermore, the guided body has a pivot portion connected to the cover via the pivot shaft portion and disposed outside the side wall of the main body portion.
The pivoting portion pivots about the pivoting axis together with the cover;
The guide portion may be formed on the outer side surface of the side wall of the main body portion, and may guide the guided body by engaging with the rotating portion.

  According to this, since the structure for guiding the guided body is provided on the outside of the main body, the storage space inside the main body can be widely secured.

  According to the present invention, in the cover opening / closing device, it is possible to realize by a simple operation the reduction of the amount of projection of the cover in the open state in which the cover is erected while ensuring a wide storage space.

FIG. 1 is an overall perspective view of a stack table according to the embodiment in use. FIG. 2 is a side view when the stack table according to the embodiment is in use. FIG. 3 is an overall perspective view when the stack table according to the embodiment is in the folded state. FIG. 4 is a side view when the stack table according to the embodiment is in the folded state. FIG. 5 is an overall perspective view of the cord hole unit according to the embodiment in the closed state. FIG. 6 is an overall perspective view when the cord hole unit according to the embodiment is in the open state. FIG. 7 is an overall perspective view when the cord hole unit in which the stored items are stored is in the open state. FIG. 8 is an exploded view of the code hole unit according to the embodiment. FIG. 9 is a top view of a unit body according to the embodiment. FIG. 10 is a cross-sectional view when the stack table according to the embodiment is in use. FIG. 11 is a cross-sectional view when the stack table according to the embodiment is in the folded state. FIG. 12 is an axial view of the shaft member according to the embodiment. FIG. 13 is a view showing a guide portion according to the embodiment. FIG. 14 is a side view when the cord hole unit according to the embodiment is in the closed state. FIG. 15 is a side view when the cord hole unit according to the embodiment is in the open state. FIG. 16A is a view for schematically explaining the opening / closing operation of the cover according to Comparative Example 1; FIG. 16B is a view for schematically explaining the opening / closing operation of the cover according to Comparative Example 2; FIG. 16C is a view for schematically explaining the opening / closing operation of the cover according to the embodiment. FIG. 17 is a view showing a modification according to the embodiment.

  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings. However, the embodiment described below is an example for carrying out the present invention, and the dimensions, the materials, the shapes, the relative arrangement and the like of the components described in the present embodiment are not particularly described. As long as the technical scope of the invention is limited to them, the scope of the invention is not limited thereto. 1 is an overall perspective view of the stack table 100 in use, FIG. 2 is a side view of the stack table 100 in use, and FIG. 3 is an overall perspective view of the stack table 100 in a folded state. These are side views when the stack table 100 is in the folded state. The stack table 100 according to the present embodiment can be changed into the use state as shown in FIGS. 1 and 2 and the folded state as shown in FIGS. 3 and 4. The stack table 100 can be stacked back and forth by being folded.

[overall structure]
As shown in FIG. 1 and FIG. 3, the stack table 100 according to the present embodiment is formed symmetrically on the whole as a whole. The components provided symmetrically in the left and right will be described with the same reference numerals. The stack table 100 is fixed to the top 1, the left and right legs 2 and 2 supporting the top 1, beams 3 extending in the left-right direction and connecting the legs 2, and both sides of the bottom of the top 1 Top plate pivoting mechanisms 10 and 10 for connecting the top plate 1 rotatably around the beam 3 and a curtain connected to the top plate 1 and the leg 2 and disposed substantially vertically below the top plate 1 A curtain that controls the attitude of the curtain 4 by connecting the plate 4, the wiring tray 40 provided on the front of the curtain 4, and the top 1 and the curtain 4 and interlocking with the rotation of the top 1 The plate control mechanisms 5 and 5 and the shelf 50 fixed to the lower surface of the top plate 1 are provided. The stack table 100 is formed symmetrically on the whole as a whole. In the present specification, the side on which the user is seated is referred to as the "front side", and the opposite side, that is, the side of the curtain plate 4 is referred to as the "back (rear)" side. Moreover, let the area | region enclosed by the top 1 and the legs 2 and 2 be "legs space" in a use condition. The stack table 100 according to the present embodiment is further provided on the top plate 1 and enables communication between the space above the top plate 1 and the lower limb space so that wiring (cords) can be routed and taps T etc. are internally provided. A retractable cordhole unit 30 is provided. Hereinafter, each configuration of the stack table 100 will be described.

  The top board 1 is a member mainly for placing a PC or the like on the front side surface of the stack table 100 in a use state so that the user can work. The top 1 has a substantially rectangular outer shape elongated in the left-right direction in top view. As shown in FIGS. 1 and 2, when the stack table 100 is in use, the top 1 is in a substantially horizontal horizontal posture. Further, as shown in FIGS. 3 and 4, when the stack table 100 is in the folded state, the top board 1 stands up substantially vertically along the rear edge of the support leg 21 of the leg 2. It becomes. In the following description, when the front side, back side, front end, and rear end of the top 1 are referred to, the top 1 when the top 1 is in the horizontal attitude regardless of the attitude of the top 1 Refers to the upper surface, the lower surface, the front end, and the rear end. At the rear of the top surface of the top plate 1, a cord hole 11 is formed through the top surface of the top plate 1 from the top surface to the back surface by an opening penetrating the top plate 1 vertically (see FIG. 10). A code hole unit 30, which will be described later, is disposed in the code hole 11.

  The table-top 1 is locked (maintained) in the respective postures by the table-top pivoting mechanism 10 in the horizontal posture or the standing posture. The user releases the lock of the table-top pivoting mechanism 10 by pushing up the control lever 101 exposed from the table-top pivoting mechanism 10 in the direction approaching the table 1, and the tabletop 1 is set between the horizontal posture and the standing posture. It can be rotationally displaced between. The stack table 100 is configured to be locked by the table-top pivoting mechanism 10 when the table-top 1 reaches the horizontal posture or the upright posture.

  The leg 2 is a member that supports the top 1 via the top pivot mechanism 10. As shown in FIGS. 2 and 3, the leg 2 has a substantially inverted T-shape in a side view. The leg 2 has a support leg 21 extending obliquely upward so as to be slightly inclined toward the front side, and a ground contact leg 22 extending in the front and rear two directions from the lower end of the support leg 21 and contacting the ground. Further, at the end of the ground contact leg 22, a caster 23 for moving the stack table 100 smoothly is provided.

  The beam 3 is a member serving as a pivot axis A of the top plate 1 as well as enhancing the rigidity of the stack table 100 by connecting the legs 2 to each other. The beam 3 is a steel pipe formed of a steel-based material. As described above, the beam 3 connects the left and right legs 2 via the beam 3 connection plate. The beam 3 functions as a beam member by connecting the left and right legs 2 via the top-plate rotation mechanism 10, so that the rigidity of the stack table 100 as a structure can be secured. The beam 3 also has a function as a pivot of the top plate 1. Therefore, the stack table 100 according to the present embodiment can secure a wider leg space as compared with the stack table 100 in which the pivot shaft of the top plate 1 is separately provided.

The table-top pivoting mechanism 10 is a mechanism that allows the table-top 1 to pivot with respect to the beam 3 and has a function of locking the attitude of the table-top 1 to a horizontal attitude or an upright attitude. The table-top pivoting mechanism 10 is provided on the back side surface of the table-top 1 and has a posture maintaining structure in which the legs 2 are engaged and the posture of the table-top 1 is locked therein. Moreover, the top-plate rotation mechanism 10 is configured to be able to slide on the side surface of the beam 3. When the user pushes up the control lever 101 exposed from the top plate rotation mechanism 10 in the direction approaching the top plate 1, the engagement between the posture maintaining structure and the leg 2 is released, and the top plate 1 is turned around the beam 3. It is possible to change the attitude of the top 1 by pivoting. Various existing configurations can be adopted for such a top plate rotation mechanism 10. The left and right top plate rotation mechanisms 10 are interlocked with each other by being connected by interlocking pipes (not shown). As a result, the user can operate the left and right top-plate pivoting mechanisms 10, 10 simultaneously only by turning the one operation lever 101.

  The curtain plate 4 is a member mainly for concealing the lower limb space when the stack table 100 in use is viewed from the back side. As shown in FIG. 3, the curtain plate 4 has a substantially rectangular outer shape elongated in the left-right direction in front view. The lateral width of the curtain plate 4 is longer than the distance between the legs 2. The curtain plate 4 is connected to the link 52 so as to interlock with the top plate 1 via a curtain plate control mechanism 5 to be described later, and the posture can be changed in accordance with the switching of the posture of the top plate 1. ing. More specifically, as shown in FIG. 1 and FIG. 2, when top plate 1 is in the horizontal posture, curtain plate 4 is positioned below top plate 1 and behind the leg 2. , And the table 1 is in a use posture in which it is suspended at a predetermined interval. Further, as shown in FIG. 3 and FIG. 4, when the top board 1 is in the standing posture, the top board 1 is in a state where its front face is in contact with the rear edge of the support leg 21 of the leg 2. The storage position is to be stored between the back side of the rear and the rear edge of the leg 2. As a result, the stack table 100 can be stacked back and forth by being in a folded state in which the top board 1 is in the standing posture.

  Further, as shown in FIG. 3, a wiring tray 40 on which wiring can be placed is provided at the upper part of the front surface of the curtain plate 4. The wiring tray 40 has a plate-like portion provided substantially at right angles to the front surface of the curtain plate 4 and extending to the left and right, and places the wiring routed from the code hole 11 provided on the top plate 1 It is possible.

  The curtain control mechanism 5 controls the attitude of the curtain 4 by connecting the top 1 and the curtain 4 and interlocking with the rotation of the top 1. The curtain control mechanism 5 mainly connects a link 52 connecting the top plate 1 and the curtain plate 4 via the top plate side bracket 51 and the curtain plate side bracket 53, and connects the curtain plate 4 and the leg 2 And a stay 54. The curtain control mechanism 5 changes the posture of the curtain 4 from the use posture to the storage posture by rotating the link 52 and the stay 54 along with the rotation of the top plate 1. Various existing configurations can be adopted as such a curtain control mechanism 5.

[Code hole unit]
Next, the code hole unit 30 as an example of the "cover opening and closing device" of the present invention will be described. The cord hole unit 30 according to the present embodiment reduces the amount of protrusion of the cover 71 when the cover 71 is opened while ensuring a wide internal storage space, and allows the user to open and close the cover 71. It can provide a moderate click feeling.

  5-7 is a figure which shows the code hole unit 30 which concerns on this embodiment. 5 shows the cord hole unit 30 in the closed state, FIG. 6 shows the cord hole unit 30 in the open state, and FIG. 7 shows a state in which the tap T is housed in the cord hole unit 30 in the open state. . FIG. 8 is an exploded view of the code hole unit 30. As shown in FIG. 5-8 show front and rear, right and left, and upper and lower sides in the cord hole unit 30. FIG. The code hole unit 30 is provided such that its front direction coincides with the front side of the stack table 100. However, the present invention is not limited to this. The code hole unit 30 may be provided upside down in the stack table 100.

The cord hole unit 30 allows the upper space of the top board 1 to communicate with the lower limb space, and can store an object to be stored such as the tap T inside. As shown in FIG. 8, the cord hole unit 30 includes a unit main body 6 as a main body serving as a housing, a lid 7 having a cover 71, and a pair of shaft members 8 and 8 having a pivot shaft portion 82. And. The code hole unit 30 is disposed on the top plate 1 by being fitted into the code holes 11 of the top plate 1, and the inside is covered by setting the cover 71 in a substantially horizontal closing posture as shown in FIG. The state can be switched between the closed state and the open state in which the inside is opened by setting the cover 71 to the substantially vertical open position as shown in FIGS. 6 and 7. The cover 71 changes its posture by pivoting around a shaft indicated by a symbol A as a pivot shaft. The rotation axis A coincides with the left-right direction of the stack table 100. The cord hole unit 30 according to the present embodiment can change the longitudinal position of the pivot axis A in accordance with the attitude of the cover 71. Hereinafter, each configuration of the code hole unit 30 will be described.

[Unit body]
FIG. 9 is a top view of the unit body 6. The unit body 6 is a member to be inserted into the code hole 11 of the top plate 1 and forms the storage portion S inside. In addition, the unit main body 6 stores the lid 7 in the storage portion S so as to be openable and closable. The unit body 6 has a box shape of a substantially rectangular parallelepiped whose upper and lower surfaces are open. As shown in FIG. 8, the unit body 6 has an upper wall 61 provided at the upper portion and having an opening, side walls 64 and 64 oppositely disposed on the left and right, a front wall 62 disposed on the front side, and a front wall 62. And a rear wall 63 disposed opposite to each other. A storage section S which is a space capable of storing an object to be stored such as the tap T and the lid 7 by being surrounded by the upper wall 61, the side walls 64 and 64, the front wall 62, and the rear wall 63 inside the unit body 6. Is formed.

  As shown in FIG. 9, in the storage portion S, there are an instrument storage area S1 capable of storing an object such as a tap T and a lid storage area S2 for storing the lid 7 by the partition wall 65 extending vertically. It is divided. The partition wall 65 is provided below the upper end of the storage portion S at an interval so as not to interfere with the cover 71 in the closed position. The partition wall 65 extends from the inner surface of the front wall 62 in parallel to the side wall 64 and has a pair of first partition walls 651 and 651 spaced apart from the left and right side walls 64 and 64 by a predetermined distance. The pair of first partition walls 651, 651 extends to the front of the inner surface of the rear wall 63. Further, the distance between the first partition 651 and the side wall 64 opposed to the first partition 651 is equal to or larger than the thickness dimension of the shaft connection portion 72 of the lid 7 described later. Further, the partition wall 65 has a second partition wall 652 which extends in parallel with the front wall 62 and connects the tips of the pair of opposing first partition walls 651 and 651 to each other. The second partition wall 652 is spaced apart from the rear wall 63. Further, the partition wall 65 has a third partition wall 653 extending in parallel with the front wall 62 and connecting the first partition wall 651 and the side wall 64 opposed to the first partition wall 651. The third partition 653 is provided at an interval of the inner surface of the front wall 62.

  By forming such a partition wall 65, the storage space S is divided into a tool storage area S1 having a rectangular shape in top view and surrounded by the front wall 62, the first partition walls 651, 651 and the second partition wall 652. There is. Further, in the storage portion S, a lid storage area S2 having a substantially U-shape in top view surrounded by the rear wall 63, the side walls 64 and 64, and the third partition 653 is partitioned.

  In the tool storage area S1, a tap storage area S11 and a connector storage area S12 are further divided by a partition wall 66 provided in parallel with the vertical direction. The tap storage area S11 can be fitted with the tap T. In the tap storage area S11, a support plate 67 supporting the tap T fitted in the tap storage area S11 from the lower surface extends from the front wall 62 to the second partition wall 652. In addition, the connector storage area S12 can store a connector of a LAN cable drawn from the lower limb space. In the connector storage area S <b> 12, a connector suspension 68 capable of suspending the connector protrudes from the inner surface of the side wall 64.

  In the lid storage area S2, an area between the second partition wall 652 and the rear wall 63 is referred to as a cover storage area S21. The cover storage area S21 is an area through which the rear edge of the cover 71 passes when the attitude of the cover 71 changes, and is an area in which a part of the cover 71 in the open attitude is accommodated. Further, in the lid storage area S2, an area between the first partition 651 and the side wall 64 opposed to the first partition 651 is referred to as a shaft storage area S22. In the shaft storage area S22, the shaft connection portion 72 of the lid 7 in the closed position and the open position is stored.

  Further, in the storage portion S, contact walls 69 and 69 are formed extending horizontally and connecting the first partition 651, the side wall 64 facing the first partition 651, the third partition 653 and the front wall 62. It is done. The abutment wall 69 abuts on the lower surface of the cover 71 in the closed position.

  The upper wall 61 has a rectangular shape in top view, and the peripheral edge thereof protrudes toward the outside of the storage portion S to form a flange portion 612 engaged with the edge of the cord hole 11. In the upper wall 61, an access opening 611 which is a substantially rectangular opening is formed. The access opening 611 is formed so that the entire area of the tool storage area S1 and a part of the lid storage area S2 can be viewed in a top view. More specifically, the front inner edge of the access opening 611 is located in the same plane as the inner surface of the front wall 62, and the left and right inner edges are located in the same plane with the inner surfaces of the pair of side walls 64, 64, The rear inner edge is located between the inner surface of the rear wall 63 and the rear surface of the second partition 652. The access opening 611 is designed such that the entire area of the access opening 611 is covered by the cover 71 in the closed position and that the cover 71 does not interfere with the rear inner edge of the access opening 611 in the open position.

  Further, as shown in FIG. 8, the side wall 64 is formed with a slide hole 641 having a substantially rectangular shape. The slide hole 641 penetrates the side wall 64 to communicate the outside of the unit main body 6 with the shaft storage area S22. The slide hole 641 allows the movement of the rotation shaft 82 in the opening / closing operation of the cover 71 while the rotation shaft 82 of the shaft member 8 described later is inserted.

  Further, as shown in FIG. 8, the front wall 62 is formed with a wiring port 621 for leading the wiring of the tap T or the LAN cable stored in the tool storage area S1 to the outside of the cord hole unit 30. Here, FIG. 10 is a cross-sectional view of the stack table 100 in use, cut along a plane orthogonal to the left-right direction. FIG. 11 is a cross-sectional view of the stack table 100 in the folded state, cut along a plane orthogonal to the left-right direction. As shown in FIG. 10, the code hole unit 30 is mounted on the stack table 100 by fitting the unit body 6 into the code hole 11 formed in the top plate 1. In the code hole 11 of the stack table 100, the inner wall of the portion corresponding to the wiring opening 621 is cut away, so that the wiring drawn out from the wiring opening 621 to the front side of the code hole unit 30 A wiring passage 12 is formed which makes it possible to run around. Thus, the wiring can be routed from the cord hole unit 30 to the wiring tray 40 via the wiring port 621. As shown in FIG. 10, when the stack table 100 is in use, the code hole unit 30 is located immediately above the wiring passage 12. Further, as shown in FIG. 10, when the stack table 100 is in the folded state, although the top plate 1 in the standing posture is opposed to the curtain plate 4 in the stored posture, the wiring passage 12 is a curtain plate. It is located above the upper end of 4. Thereby, the wiring can be routed to the wiring tray 40 without bending the wiring. As described above, according to the stack table 100 according to the present embodiment, even when the code hole unit 30 is disposed at the rear of the top 1, it is affected by the state change between the use state and the folded state. Instead, the wiring from the cord hole unit 30 can be routed to the wiring tray 40.

[Lid]
As shown in FIG. 8, the lid 7 has a cover 71 which is a plate member having a substantially rectangular shape, and a pair of shaft connection portions 72 and 72 which are plate members extending from both side edges of the cover 71. The pair of shaft connection portions 72, 72 face each other and extend perpendicularly to the cover 71. Further, in the vicinity of the tip of the shaft connection portion 72, an insertion hole 721 for connecting the lid 7 and the shaft member 8 is penetrated in the thickness direction. The insertion hole 721 has a substantially oval shape, and can be inserted into an insertion portion 821 of the shaft member 8 described later. As shown in FIG. 5, the cover 71 is formed to cover the entire area of the access opening 611 by being in the closing posture.

[Shaft member]
The shaft member 8 is a member which is connected to the lid 7 and which forms the pivot axis A of the cover 71. The shaft member 8 is an example of the “guided body” in the present invention. As shown in FIG. 8, the shaft member 8 has a rotating portion 81 having a substantially disk shape, and a rotating shaft portion 82 having a substantially cylindrical shape and standing vertically from substantially the center of the rotating portion 81. And. The central axis of the pivot shaft portion 82 forms a pivot axis A of the cover 71. An insertion portion 821 formed in a substantially oval shape in the axial direction is formed at the tip of the rotation shaft portion 82.

  FIG. 12 shows the shaft member 8 in the axial direction view, and is a view showing the shaft member 8 viewed from the side of the pivot shaft portion 82. Here, a predetermined straight line passing through the rotation axis A in the axial direction view is referred to as a first straight line L1, and a straight line passing through the rotation axis A and orthogonal to the first straight line L1 is referred to as a second straight line L2. As shown in FIG. 12, the pivoting portion 81 has a shape that is line-symmetrical with the second straight line L2 as an axis of symmetry in the axial direction. A gear portion 84 is formed by providing a plurality of projections like a gear in one of the regions divided by the first straight line L1 in the rotating portion 81. The gear portion 84 is a portion engaged with a lower guide portion 92 described later. Further, the other region divided by the first straight line L1 in the pivoting portion 81 forms the engaging portion 83 by being provided with the pair of elastic pieces 831 and 831. The engaging portion 83 is a portion engaged with the upper guide portion 91 described later.

  The gear portion 84 has a gear base portion 845 forming an arc-like outer surface centering on the rotation axis A in the axial direction view, a fulcrum projection 841 radially projecting from the gear base portion 845, and a pair of housed projections 842 and 842 and a pair of contact protrusions 843 and 843. The fulcrum projection 841 is formed on the second straight line L2 in the axial direction. The pair of contact protrusions 843 and 843 are provided in line symmetry with the second straight line L2 as an axis of symmetry. The contact protrusion 843 is formed at a position spaced apart from the fulcrum protrusion 841 by a predetermined angle around the rotation axis A. The pair of accommodated protrusions 842 and 842 are provided in line symmetry with the second straight line L2 as an axis of symmetry. The receiving protrusion 842 is formed at a position between the fulcrum protrusion 841 and the contact protrusion 843. The respective tips of the fulcrum protrusion 841, the receiving protrusion 842, and the contact protrusion 843 are flat.

  The engaging portion 83 has a pair of elastic pieces 831 and 831 formed by cutting out a part of a disk shape. The pair of elastic pieces 831 and 831 are arm portions 831 a and 831 a curved and extended so as to approach each other with the gear portion 84 side as the base end, and claw portions 831 b formed on the respective arm portions 831 a Have. The claw portion 831 b is a projection formed to be slightly bent to the gear portion 84 side from the tip end of the arm portion 831 a on the inner side of the pair of arm portions 831 a and 831 a. The distance between the claws 831 b and 831 b is smaller than the width of the locking projection 912 described later. Here, in the arm portion 831a, the surface positioned on the outer side of the pair of elastic pieces 831 and 831 is taken as an arm side contact surface 832c. Further, in the claw portion 831b, the surface opposite to the gear portion 84 is referred to as a claw-side contact surface 831d. Since the claws 831b are slightly bent toward the gear portion 84, a space in which the locking projections 912 described later can be received by the claw side contact surfaces 831d and 831d of the pair of claws 831b and 831b. Is formed. The elastic piece 831 configured in this manner has elasticity, and can be bent toward the gear portion 84 by being elastically deformed.

[Guide section]
FIG. 13 is a view showing the guide portion 9. As shown in FIG. 13, the side wall 64 of the main body is provided with a guide portion 9 that supports the shaft member 8 and guides the pivoting portion 81 in the opening / closing operation of the cover 71. The guide portion 9 has an upper guide portion 91 formed above the slide hole 641 and a lower guide portion 92 formed below the slide hole 641. Here, a central line in the front-rear direction of the slide hole 641 is L3. As shown in FIG. 13, in the side view of the unit body 6, that is, in the axial direction, the guide portions 9 are formed substantially in line symmetry with the center line L3 as an axis of symmetry.

  The upper guide portion 91 guides the elastic piece 831 at the time of opening and closing operation of the cover 71, and locks the posture of the cover 71 by engaging with the elastic piece 831 in the closed lid posture and the open lid posture. The upper guide portion 91 has a guide wall 911 erected on the side wall 64 so as to form a curved line that bulges upward to surround the slide hole 641. On the guide wall 911, a pair of locking projections 912 and 912 having a substantially semicircular shape project downward. The locking projections 912, 912 are formed at substantially symmetrical positions with the center line L3 as the axis of symmetry. Here, among the pair of locking protrusions 912 and 912, the locking protrusion 912 on the front side is taken as a first locking protrusion 9121 and the locking protrusion 912 on the rear side is taken as a second locking protrusion 9122. The locking projection 912 is an example of the “locking portion” in the present invention.

  The lower guide portion 92 includes a guide base portion 921 as a base, a pair of guide protrusions 922 and 922 protruding upward, and a pair of control protrusions 923 and 923. The pair of guide protrusions 922 and 922 are formed at intervals in line symmetry with respect to the center line L3 as an axis of symmetry in an axial view. The pair of restricting protrusions 923 and 923 are axisymmetrical positions with respect to the center line L3 as an axis of symmetry in the axial direction, and are formed outside the guide protrusions 922 and 922 at intervals from the guide protrusions 922. The pair of guide protrusions 922 and 922 and the guide base portion 921 form a support groove 924 recessed downward. The width of the support groove 924, that is, the distance between the pair of guide protrusions 922 is larger than the width of the fulcrum protrusion 841 of the shaft member 8. The bottom of the support groove 924 is substantially flat. In addition, a pair of storage grooves 925 recessed downward is formed by the adjacent guide protrusions 922, the control protrusions 923, and the guide base portion 921. The bottom of the storage groove 925 is a substantially flat surface, and is located below the bottom of the support groove 924. The width of the storage groove 925, that is, the distance between the guide protrusion 922 and the restriction protrusion 923 is larger than the width of the received protrusion 842 of the shaft member 8. Here, among the pair of control projections 923 and 923, the control projection 923 on the front side is a first control projection 9231, and the control projection 923 on the rear side is a second control projection 9232. Further, of the pair of storage grooves 925 and 925, the front storage groove 925 is a first storage groove 9251, and the rear storage groove 925 is a second storage groove 9252.

[Operation]
FIG. 14 is an axial view of the cord hole unit 30 in the closed state. FIG. 15 is an axial view of the cord hole unit 30 in the open state. The attitude control of the cover 71 by the guide portion 9 when changing the attitude of the cover 71 from the closing attitude to the opening attitude will be described with reference to FIGS. 14 and 15. In the cord hole unit 30 according to the present embodiment, the cover 71 in the closed position is stored in the cover storage area S21 at the rear of the hole unit and the cover 71 is erected and opened so that the front end of the cover 71 faces upward. By setting the lid posture, the closed state is opened. The cord hole unit 30 according to the present embodiment moves the pivot shaft 82 rearward while rotating the cover 71 in a series of operations for changing the attitude of the cover 71 from the closed attitude to the open attitude. Thereby, the space of the tool storage area S1 can be secured widely, and the amount of projection of the cover 71 in the open position from the access opening 611 can be reduced. The details will be described below. In the following description, in order to change the cover 71 from the closed position to the open position, the direction in which the lid 7 pivots about the pivot shaft portion 82 is taken as a first direction R1, and the opposite direction is referred to as a second direction. Assume R2. Further, among the pair of arm portions 831a and 831a provided on the shaft member 8, an elastic piece 831 positioned on the second direction R2 side around the rotation axis A is taken as a first elastic piece 8311 and on the first direction R1 side. One elastic piece 831 is referred to as a second elastic piece 8312. In addition, a pair of accommodated projections 842 and 842 in the shaft member 8
Among the above, the receiving protrusion 842 located on the first direction R1 side around the rotation axis A with respect to the fulcrum protrusion 841 is taken as a first receiving protrusion 8421 and the receiving protrusion 842 located in the second direction R2 side is a second The receiving protrusion 8422 is used. Similarly, among the pair of contact protrusions 843 and 843, the contact protrusion 843 positioned on the first direction R1 side around the pivot shaft portion 82 with respect to the fulcrum protrusion 841 is taken as a first contact protrusion 8431. The abutment projection 843 located on the direction R2 side is referred to as a second abutment projection 8432.

  As described above, when the cover 71 is in the closed position, the access opening 611 is covered by the cover 71, and the lower surface of the front end of the cover 71 is in contact with the contact wall 69 of the unit body 6. . In addition, as shown in FIG. 14, the first accommodation protrusion 8421 of the shaft member 8 is accommodated in the first accommodation groove 9251 of the lower guide portion 92, and the tip of the first accommodation protrusion 8421 is the first accommodation groove 9251. In contact with the bottom of the In this state, the tip of the fulcrum projection 841 is separated from the bottom of the support groove 924. In addition to the lower surface of the front end of the cover 71 being in contact with the contact wall 69 of the unit body 6, the first contact is made even if the cover 71 in the closed position is further rotated in the second direction R2. Since the protrusion 8431 abuts on the first restricting protrusion 9231, the turning of the turning shaft portion 82 in the second direction R2 is restricted.

  Furthermore, when the cover 71 is in the closed position, as shown in FIG. 14, the engaging portion 83 is engaged with the first locking projection 9121 of the upper guide portion 91. Specifically, the first locking projections 9121 are in contact with the claw-side abutting surfaces 831d, 831d of the claws 831b, 831b provided on the pair of elastic pieces 831, 831. As a result, the first locking projection 9121 is in a state of being sandwiched between the pair of claw side contact surfaces 831 d. In this state, the first locking projection 9121 is in contact with the claw-side abutting surface 831 d of the claw portion 831 b of the first elastic piece 8311. Therefore, even if the cover 71 in the closing position is pivoted in the first direction R1, the first elastic piece 8311 is stretched. Thereby, the posture of the cover 71 is locked, and the cover 71 in the closing posture is prevented from rotating in the first direction R1 carelessly. As described above, the closing posture of the cover 71 is maintained. Here, when the cover 71 is in the closing position, the pivot shaft portion 82 is located on the front side of the center line L3. The position of the pivot shaft portion 82 in the closed state is referred to as a first position.

  Next, the operation at the time of bringing the cover 71 to the open position will be described. First, the user grips the cover 71 and tries to rotate the cover 71 in the first direction R1. When the force to turn the cover 71 in the first direction R1 against the tension of the elastic piece 831 against the first locking projection 9121 exceeds the predetermined magnitude, the first elastic piece 8311 is the first locking. The arm portion 831a is biased toward the gear portion 84 by being urged by the projection 9121. Then, the claw-side contact surface 831 d of the claw portion 831 b of the first elastic piece 8311 passes over the first locking projection 9121, whereby the engagement between the engaging portion 83 and the first locking projection 9121 is released. Thereby, the lock of the rotation of the cover 71 in the first direction R1 by the locking projection 912 is released. At this time, since the lock is released by the claw portion 831 b moving over the first locking projection 9121, an appropriate click feeling (moderation feeling) can be provided to the user holding the cover 71.

  With the rotation of the cover 71 in the first direction R 1, the first accommodation protrusion 8421 of the gear portion 84 is separated from the first accommodation groove 9251 and the fulcrum projection 841 is accommodated in the support groove 924. Then, the tip of the fulcrum protrusion 841 abuts on the bottom of the support groove 924, and the shaft member 8 and the cover 71 rotate in the first direction R1 with the tip of the fulcrum protrusion 841 as a fulcrum. Thus, the pivot shaft portion 82 forms the inside of the slide hole 641 from the first position so that the pivot shaft A draws a substantially arc-shaped orbit centered on the contact point between the tip of the fulcrum protrusion 841 and the bottom of the support groove 924 Move in the back direction. When the cover 71 is further rotated in the first direction R 1, the contact between the tip end surface of the fulcrum protrusion 841 and the bottom of the support groove 924 is released and the second accommodated protrusion 8422 is in the second storage groove 9252. Housed in

  At this time, the rotation of the cover 71 in the first direction R1 is not inhibited by the upper guide portion 91 until the second elastic piece 8312 reaches the second locking protrusion 9122. Then, the arm-side contact surface 832 c of the second elastic piece 8312 abuts on the second locking projection 9122 so that the second elastic piece 8312 is in a state of being stretched relative to the second locking projection 9122. When the cover 71 is further rotated in the first direction R1 in this state, the second elastic piece 8312 is biased by the second locking projection 9122 and the arm 831a is bent to the gear 84 side. Become. Then, the arm-side contact surface 832c of the arm 831a of the second elastic piece 8312 passes over the second locking projection 9122 to make the second locking projection 9122 a claw-side contact of the claw portions 831b of the pair of elastic pieces 831. It will be in the state pinched | interposed into the contact surface 831d. At this time, when the arm 831 a passes over the second locking projection 9122, the tension state of the elastic piece 831 with respect to the second locking projection 9122 is eliminated, so that the user can be provided with an appropriate click feeling.

  Then, the second accommodated projection 8422 is accommodated in the second accommodation groove 9252 and the second engagement projection 9122 is formed on the claw-side abutting surfaces 831 d, 831 d of the claw portions 831 b, 831 b of the pair of elastic pieces 831, 831. By being in the sandwiched state, the cover 71 is accommodated in the cover accommodation area S21, and the upright state shown in FIG. 15 is obtained. At this time, the pivot shaft portion 82 reaches the second position which is a position substantially line-symmetrical to the first position with the central line L3 as an axis of symmetry. The second position is closer to the rising position of the cover 71 than the first position. Further, the height positions of the first position and the second position are substantially the same.

  Even if the cover 71 in the open position is further rotated in the first direction R1, the second contact projection 8432 of the lower guide 92 abuts on the second restricting projection 9232. The rotation in two directions R2 is restricted. Further, when the cover 71 is in the open position, the second locking projection 9122 is in contact with the claw-side contact surface 831 d of the claw portion 831 b of the second elastic piece 8312. Therefore, even if the cover 71 in the open position is rotated in the second direction R2, the second elastic piece 8312 is stretched. Thereby, the attitude of the cover 71 is locked, and the cover 71 in the open attitude is prevented from rotating in the second direction R2 carelessly. As described above, the open position of the cover 71 is maintained.

  In order to set the cover 71 in the open position to the closed position, the reverse operation to the above may be performed. That is, the cover 71 is rotated in the second direction R2 to move the pivot shaft 82 from the second position to the first position, whereby the cover 71 is brought from the open position to the closed position. Also in this case, when the claw portion 831b of the second elastic piece 8312 gets over the second locking projection 9122 and when the arm portion 831a of the first elastic piece 8311 gets over the second locking protrusion 9122 It can provide a moderate click feeling.

[Comparative example]
Here, FIG. 16A is a view for schematically explaining the opening / closing operation of the cover 71 by the code hole unit 30a according to the first comparative example. FIG. 16B is a view for schematically explaining the opening / closing operation of the cover 71 by the code hole unit 30 b according to the second comparative example. Moreover, FIG. 16C is a figure for demonstrating typically opening-closing operation of the cover 71 by the code hole unit 30 which concerns on this embodiment.

In Comparative Example 1, the pivot shaft 82 is fixed at the first position. In the second comparative example, the pivoting shaft 82 is provided such that the pivoting shaft 82 is positioned at the second position in the closing position, and the pivoting shaft 82 is fixed at the second position. . The shape and size of the cover 71 of Comparative Example 1 and Comparative Example 2 are the same as the cover 71 according to the present embodiment. As in Comparative Example 1 shown in FIG. 16A, when the pivot shaft portion 82 is fixed at the first position, the cover 71 interferes with the tap T in the middle of the posture change, and the cover 71 can not be opened. . Therefore, in order to open and close the cover 71 while fixing the rotation shaft 82 at the first position, the tool storage area S1 must be made smaller.

  On the other hand, in Comparative Example 2 shown in FIG. 16B, since the pivot shaft portion 82 is at the second position behind the first position, the cover 71 does not interfere with the tap T, and the cover 71 is opened. can do. However, since the distance from the rotation axis A of the front end of the cover 71 is longer than that of Comparative Example 1, the front end of the cover 71 draws a larger arc than that of the Comparative Example, and the cover 71 reaches the open lid posture. . As a result, the amount of protrusion of the cover 71 from the access opening 611 in the open lid posture is larger than in the case of Comparative Example 1. As a result, the appearance may be deteriorated.

  On the other hand, in the cord hole unit 30 according to the present embodiment, the distance from the pivot axis A of the front end of the cover 71 is equal to that in Comparative Example 1, and the position of the pivot shaft portion 82 is the first position from the first position. The cover 71 is brought from the closed position to the open position while being changed to the second position on the standing position side of the cover 71 rather than the position. As a result, when the posture is changed from the lid closing posture to the lid opening posture, the cover 71 can be released backward (upward position side). Thereby, it is possible to suppress that the cover 71 interferes with the tap T in the middle of the posture change. Further, since the first position and the second position are at the same height position, the amount of projection of the cover 71 from the access opening 611 in the open lid posture can be made equal to that of the first comparative example.

[Operation / effect]
As described above, according to the code hole unit 30 according to the present embodiment, the cover 71 rotates in the first direction R1 about the rotation axis A from the state in the closing position, thereby the inside of the access opening 611 Leading up to the open position. Further, the guide portion 9 guides the shaft member 8 as the cover 71 rotates around the rotation axis A, and thereby the rotation axis portion 82 of the cover 71 rotates according to the rotation amount around the rotation axis. The longitudinal position of the slide hole 641 can be changed. The position of the pivot shaft 82 in the slide hole 641 is the first position when the cover 71 is in the closed position, and the rear of the first position when the cover 71 is in the open position, ie, the position of the cover 71. It becomes the 2nd position which approached standing position. According to the cord hole unit 30 according to the present embodiment, when the cover 71 is in the open position, the position of the pivot shaft portion 82 is the rear of the cover 71 (upward position side) than the first position. By changing the position to the second position, the cover 71 can be released rearward (upward position side) when changing the posture from the lid closing posture to the lid opening posture. Thereby, it can suppress that the cover 71 interferes with to-be-stored things, such as tap T, in the middle of attitude | position change. As a result, it is possible to secure a large instrument storage area S1 while suppressing the amount of protrusion of the cover 71 from the access opening 611 in the open lid posture to a small amount. As a result, the appearance of the stack table 100 when the code hole unit 30 is in the open state can be improved, and the tool storage area S1 in the code hole unit 30 can be widened. Furthermore, in the cord hole unit 30 according to the present embodiment, the guide portion 9 guides the pivoting portion 81 as the cover 71 pivots about the pivot axis A, and the cover 71 rotates about the pivot axis A The anteroposterior position of the pivot shaft portion 82 can be changed according to the amount of movement. As a result, only by a series of opening and closing operations by rotating the cover 71, the position of the pivot shaft portion 82 is moved from the first position to the second position without complicated operations, and the cover 71 is received. It can be slid in the direction to retract from the object. Further, in the code hole unit 30 according to the present embodiment, the guide portion 9 guides the pivoting of the cover 71 for changing from the closed position to the open position, while retracting the cover 71 from the storage object Can slide on. As a result, compared with the case where the rotation mechanism for opening and closing the cover 71 and the slide mechanism for sliding the cover 71 are separately provided, a simpler structure can be obtained.

Furthermore, the cord hole unit 30 according to the present embodiment has an elastic piece 831 formed on the shaft member 8 and a locking projection 912 formed on the guide portion 9 for locking the elastic piece 831. The locking projection 912 locks the elastic piece 831 so that the rotation axis A of the cover 71
Rotation around is locked. Then, when the cover 71 is rotated by a predetermined force or more, the elastic piece 831 is deformed, whereby the locking by the locking protrusion 912 is released. As a result, it is possible to provide a user who is holding the cover 71 and performing a turning operation with an appropriate click feeling (moderation feeling). The user can recognize, for example, the degree of opening and closing of the cover 71 based on the click feeling. As a result, according to the code hole unit 30 according to the present embodiment, the feeling of operation in the opening and closing operation of the cover 71 can be improved. Further, in the cord hole unit 30 according to the present embodiment, an elastic piece 831 which is elastically deformed is formed on the shaft member 8 connected to the cover 71 which the user holds and operates. Thereby, compared with the case of elastically deforming the locking projection 912 provided on the guide portion 9 side, it is possible to provide a click feeling more directly to the user.

  In the present embodiment, a configuration in which the locking projection 912 and the elastic piece 831 are combined is an example of the “lock structure” in the present invention. Further, the number and position of the locking protrusions 912 are not limited to the above. For example, the locking protrusions 912 may be provided at equal intervals at a plurality of points between the first locking protrusion 9121 and the second locking protrusion 9122. Thus, the opening degree of the cover 71 can be adjusted stepwise, and the user can more finely recognize the open / close degree of the cover 71 based on the click feeling.

  Furthermore, as described above, the shaft member 8 is connected to the cover 71 via the pivot shaft portion 82 and disposed outside the side wall 64 of the unit main body 6, and is rotated around the pivot axis A together with the cover 71. A rotating portion 81 is formed to move. Further, the guide portion 9 is formed on the outer side surface of the side wall 64 and is configured to guide the shaft member 8 by engaging with the rotating portion 81. According to this, since the structure for guiding the shaft member 8 is provided on the outside of the unit body 6, a wide storage space inside the unit body 6 can be secured.

[Modification]
FIG. 17 is a view showing a modification according to the present embodiment. As shown in FIG. 17, the cord hole unit 30A according to the modification differs from the cord hole unit 30 in the shapes of the shaft member and the guide portion. Hereinafter, the code hole unit 30A according to the modification will be described focusing on differences from the code hole unit 30.

  As shown in FIG. 17, the code hole unit 30A has a cam portion 801 to which the rotation shaft portion 82 is connected, and an elastic piece 802 extending from the cam portion 801, instead of the rotation portion 81. The cam portion 801 has an eccentric shape. Further, the elastic piece 802 has elasticity and is formed in a rod shape extending from the cam portion 801. However, the elastic piece 802 may have a protrusion shape.

Further, the guide portion 9A provided in the unit main body 6A has a slide hole 641A for restricting the movement of the pivot shaft 82 in the vertical direction and allowing the movement in the front and rear direction, and the upper guide portion 91A. The upper guide portion 91 has a guide wall 911 for guiding the elastic piece 802, a locking groove 93 as a locking portion formed on the guide wall 911 and accommodating the tip of the elastic piece 802, and both ends of the guide wall 911 And a cam guide 94 configured to guide the cam portion 801. The locking groove 93 has a first locking groove 931 for housing the tip of the elastic piece 802 when the pivot shaft portion 82 shown in FIG. 17A is at the first position, and a rotation shown in FIG. The second locking groove 932 for accommodating the tip of the elastic piece 802 when the moving shaft 82 is in the second position, and the rotating shaft 82 shown in FIG. 17B are at an intermediate position between the first position and the second position. And a third locking groove 933 for housing the tip of the elastic piece 802 when in the third position, which is the position. When each locking groove 93 accommodates the tip of the elastic piece 802, the rotation of the rotation shaft 82 is locked. The code hole unit 30A according to the modification is a cover by locking the rotation of the rotation shaft 82 when the rotation shaft 82 is at the third position, which is an intermediate position between the first position and the second position. The posture of the cover 71 can be maintained with the posture 71 being an intermediate posture between the closed posture and the open posture.

  Further, the lock of the pivot shaft portion 82 by each locking groove 93 is released by bending the elastic piece 802 and causing the tip of the elastic piece 802 to get over the locking groove 93. Thereby, when the lock by each locking groove 93 is released, it is possible to provide the user with an appropriate click feeling. As a result, it is possible to improve the feeling of operation in the opening and closing operation of the cover 71 by the user. Here, the cord hole unit 30 according to the present embodiment makes the pivot shaft portion 82 and the elastic piece 831 a sliding part by integrally molding the shaft member 8 with a material having high self-lubricity and toughness. , Can enhance their durability.

  Further, the cam guide 94 is in contact with the cam portion 801 in the front-rear direction in the process of changing the posture of the cover 71. Here, among the cam guides 94, the cam guide 94 on the near side is referred to as a first cam guide 941, and the cam guide 94 on the rear side is referred to as a second cam guide 942. The cam portion 801 is formed such that the distance between the rotation axis A and the peripheral edge changes in accordance with the change of the angle around the rotation axis A. Specifically, as the cam portion 801 is rotated in the first direction R1 from the state where the rotary shaft portion 82 is at the first position, the rotary shaft A and the first cam guide 941 separate from each other while rotating. The movement axis A and the second guide are formed to be close to each other. Thus, the pivot shaft 82 moves from the first position to the second position in accordance with the operation of bringing the cover 71 in the closed position to the open position. As a result, while securing the internal space of the code hole unit 30, it is possible to reduce the amount of protrusion from the opening of the cover 71 in the open lid posture. Similarly, with the operation of bringing the cover 71 in the closed position to the open position, the pivot shaft 82 moves from the second position to the first position. As described above, the cam guide 94 guides the cam portion 801 as the cover 71 rotates around the rotation axis A, and the rotation shaft portion according to the amount of rotation of the cover 71 around the rotation axis A. The back and forth position of 82 can be changed. As a result, the position of the pivot shaft 82 can be moved from the first position to the second position without complicated operations.

  The various contents described above can be combined as much as possible without departing from the technical concept of the present invention. Moreover, although the above-mentioned embodiment demonstrated the stack table which can change the attitude | position of a top plate as an application example, this invention is not limited to this, A top plate may apply to a desk of a fixed type. The cover opening and closing device according to the present invention can be applied not only to the top plate of a table but also to various top plates such as a desk top plate and a counter top plate. Moreover, the to-be-stored thing of this invention is not limited to apparatuses, such as tap T and a connector. Further, the dimensions, materials, shapes, relative arrangements, etc. of the components described in the above embodiments are intended to limit the technical scope of the invention to only those unless otherwise specified. is not.

DESCRIPTION OF SYMBOLS 1 ... Top plate 2 ... Leg 3 ... Beam 4 ... Curtain plate 5 ... Curtain plate control mechanism 6 ... Unit main body 7 ... Lid 71 ... Cover 8 ... · Shaft member 81 · · · rotation portion 82 · · · rotation shaft portion 9 · · · guide portion 91 · · · upper guide portion 92 · · · lower guide portion 10 · · · top plate rotation mechanism 30 · · · · Code hole 40 ··· Wiring tray 50 · · · Shelf 100 · · · Stack table S · · · Storage section

Claims (3)

A cover opening / closing device that allows opening and closing of an opening provided in a top plate, wherein
A main body that forms the opening by being fitted to the top plate;
A cover attached to the main body and capable of changing the posture between a substantially horizontal closing posture covering the opening and the opening posture opened inside the opening while opening the opening;
Slide holes formed in a pair of side walls in the main body;
A guided body having a pivot shaft portion inserted into the slide hole and connected to the cover;
And a guide portion provided on the side wall of the main body portion for guiding the guided object.
The pivot shaft portion forms a pivot shaft of the cover,
The cover reaches the open position by pivoting about the pivot shaft from the closed position.
The guide portion guides the guided body as the cover pivots about the pivot axis, and the cover pivots according to the pivot amount of the cover about the pivot axis. Change the longitudinal position of the slide hole,
The position of the pivot shaft portion in the slide hole is at the first position when the cover is in the closing position, and at the rising position of the cover than the first position when the cover is in the opening position. It will be the second position that you approached,
Cover opening and closing device. It has a lock structure that locks rotation of the cover about the rotation axis,
The lock structure includes an elastic portion formed on the guided body, and a locking portion formed on the guide and locking the elastic portion.
If it is attempted to turn the cover with a predetermined force or more, the elastic portion is deformed, whereby the locking of the elastic portion by the locking portion is released.
The cover opening and closing device according to claim 1. The guided body has a pivot portion connected to the cover via the pivot shaft and disposed outside the side wall of the main body,
The pivoting portion pivots about the pivoting axis together with the cover;
The guide portion is formed on the outer surface of the side wall of the main body portion, and guides the guided body by engaging with the rotating portion.
The cover opening / closing device according to claim 1.

Images