JP4855903B2 - Opening and closing mechanism of lid on top plate - Google Patents

Description

  The present invention relates to a lid opening / closing mechanism in a top plate that supports a lid that closes an opening formed in the top so as to be opened and closed from both sides in the depth direction of the opening.

  A conventional lid opening / closing mechanism for a top plate closes an opening formed on a top plate such as a table or a desk with a lid, and allows the lid to be manually removed at both ends in the longitudinal direction ( For example, see Patent Document 1).

Japanese Unexamined Patent Publication No. 2004-298657 (page 7, FIG. 8)

  However, in the lid opening / closing mechanism in the top plate described in Patent Document 1, the lid is detachably fitted by hand to the shaft provided in the opening. By repeatedly attaching and detaching, the lid body is easily detached, and there is a possibility that the lid body cannot be stably held even in the closed state. Also, when opening the lid from one side selected in the depth direction of the opening, depending on the human force, the shaft may not be properly fitted and the lid may not be easily attached or detached. Has occurred.

  The present invention has been made paying attention to such a problem. In the closed state, the lid can be stably held and can be selected from both sides of the opening in the depth direction and can be easily opened. An object of the present invention is to provide a lid opening / closing mechanism for a plate.

In order to solve the above-described problem, the lid opening / closing mechanism in the top plate according to claim 1 of the present invention includes:
A lid opening / closing mechanism in the top plate that supports the lid that closes the opening formed in the top plate so that the lid can be opened and closed from both sides in the depth direction of the opening,
Provided on both sides in the depth direction of the opening so as to be freely retractable between a protruding position protruding into the opening and a retracted position retracted toward the outside of the opening, and the lid at the protruding position A pair of projecting shafts that pivotably support,
Projecting shaft biasing means for biasing the pair of projecting shafts toward the opening in the axial direction;
An opening means that has an opening operation portion that is operated when opening the lid, and that retracts at least one of the pair of projecting shafts outside the opening in accordance with an operation of the opening operation portion;
With
In the closed state of the opening, both sides in the depth direction of the lid body are pivotally supported by a pair of projecting shafts urged toward the projecting position, and one projection according to the operation of the opening operation unit. When the shaft is retracted to the retracted position, the lid body is pivotally supported by the other projecting shaft so as to be openable.
According to this feature, in the closed state of the opening, both sides in the depth direction of the lid are pivotally supported by the pair of projecting shafts urged by the projecting shaft urging means and are stably held. , By retracting one projecting shaft from the opening by operating the opening operation section, the lid can be rotated around the other projecting shaft, so it can be selected from both sides of the opening in the depth direction and easily The opening can be opened.

The lid opening / closing mechanism for the top plate according to claim 2 of the present invention is the lid opening / closing mechanism for the top plate according to claim 1,
Lid urging means for urging the lid upward is provided on both sides of the opening in the depth direction.
According to this feature, when one projecting shaft is retracted from the opening by the operation of the opening operation unit, the retracted projecting shaft side end in the depth direction of the lid is pushed up above the opening. The lid can be easily opened without providing a handle or the like on the body.

The lid opening / closing mechanism for the top plate according to claim 3 of the present invention is the lid opening / closing mechanism for the top plate according to claim 1 or 2,
A housing part having a hollow structure is formed on the side of the opening part, the opening operation part is provided on the upper surface of the housing part, and the protruding shaft biasing means is provided in the housing part.
According to this feature, the opening operation portion for opening the lid and the protruding shaft biasing means are provided in the housing portion of the hollow structure, so that the internal space of the opening can be secured as a wiring space, for example, The opening operation of the operation unit is easier to perform.

The lid opening / closing mechanism for the top plate according to claim 4 of the present invention is the lid opening / closing mechanism for the top plate according to claim 3,
The opening means includes an up / down operation mechanism that allows the opening operation portion to be operated in an up / down direction, a horizontal exit / retreat mechanism that moves the protruding shaft in and out in a substantially horizontal direction, and an up / down operation of the up / down operation mechanism. A transmission mechanism that transmits the horizontal movement of the retraction mechanism, and the vertical operation mechanism, the horizontal retraction mechanism, and the transmission mechanism are housed in the housing portion.
According to this feature, since the vertical movement caused by the pressing operation of the opening operation portion can be transmitted to the substantially horizontal movement of the protruding shaft via the transmission mechanism, the opening operation by the opening operation portion is easy. become.

The lid opening / closing mechanism for the top plate according to claim 5 of the present invention is the lid opening / closing mechanism for the top plate according to claim 3 or 4,
A frame body in which the opening portion and the housing portion are integrated is formed, and the frame body can be attached to a top plate opening formed in the top plate.
According to this feature, the lid body opening / closing mechanism can be installed on the top plate as an integrated frame, so that the lid body opening / closing mechanism can be easily attached to the top plate.

  Examples of the present invention will be described below.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. First, FIG. 1 is a perspective view showing an overall image of a table to which a lid body is attached in Embodiment 1 of the present invention. FIG. 2A is a perspective view showing a state in which the lid is opened from one side in the depth direction, and FIG. 2B is a perspective view showing a state in which the lid is opened from the other side as in FIG. FIG. 3A is a perspective view showing a longitudinal end portion of the opening in a state where the lid is closed, and FIG. 3B is a longitudinal direction of the opening in a state where the lid is opened as in FIG. It is a perspective view which shows an edge part. FIG. 4A is a top view illustrating the inside of the housing portion in a state where the lid is closed, and FIG. 4B is a top view illustrating the inside of the housing portion when the release button is pressed as in FIG. 5A is a cross-sectional view taken along the line AA in FIG. 4A, and FIG. 5B is a cross-sectional view taken along the line A′-A ′ in FIG.

  As shown in FIG. 1, a table 1 to which an opening unit 10 having a lid 11 of this embodiment is attached includes a top plate 3 having a rectangular shape having a long side portion 3a and a short side portion 3b, It consists of four legs 2 connected at the peripheral corners of the plate 3. Hereinafter, the direction in which the long side portion 3a is formed is referred to as a longitudinal (left / right) direction, and the direction in which the short side portion 3b is formed is referred to as a depth (front / rear) direction. A rectangular top plate opening 4 that is long in the longitudinal direction and short in the depth direction is formed in the approximate center of the top plate 3 when viewed from above, and is slightly smaller than the top plate opening 4. An opening unit 10 as a rectangular frame is fitted in the top plate opening 4.

The opening unit 10 is provided on the outer side of the opening 12 having an inner structure that extends in the longitudinal direction and opens upward, a lid 11 that closes the opening 12, and both ends of the opening 12 in the longitudinal direction. The housing parts 16 and 16 having the inner space structure are integrated, and can be attached to the top plate 3 by being placed on the support member 5 fixed to the lower surface of the top plate 3 along the top plate opening 4. I can do it.
For example, a power cable or a communication cable for supplying power to an electronic device or a lighting device mounted on the top plate 3 of the table 1 is arranged inside the opening 12 to improve the work environment on the top plate 3. As well as being able to arrange the aesthetic appearance.

  As shown in FIG. 2A, the projecting shafts 13a and 13a and the projecting shafts 13b and 13b, which are opposed to each other on the inner side surfaces of both ends in the longitudinal direction of the opening 12, with the virtual axes in the longitudinal direction being coincident with each other, As will be described later, the opening 12 is provided so as to be freely retractable. More specifically, the left and right projecting shafts 13a, 13a and the projecting shafts 13b, 13b are arranged to be spaced apart from each other in the depth direction, and the projecting shafts 13a, 13a and the projecting shafts 13b, 13b have openings. 12, which is movable in the horizontal direction between a projecting position projecting into the inner end 12 and pivotally supported by both end portions in the depth direction of the lid 11 and a retreating position retracted into the accommodating portion 16 outside the opening 12. While being provided, it is always provided in a state of being urged toward the protruding position by a leaf spring 17 as a protruding shaft urging means described later. The accommodating portions 16 and 16 are provided in a direction in which projecting shafts 13a, 13a, 13b, and 13b, which will be described later, are retracted, and are disposed so as to accommodate the retracted projecting shafts 13a, 13a, 13b, and 13b inside. preferable.

  Further, leaf springs 14 as lid urging means are installed between the projecting shafts 13a and 13b on the inner surfaces of both ends in the longitudinal direction of the opening 12, and both sides of the opening 12 in the depth direction. The lid 11 is urged upward.

  The lid body 11 is formed of a substantially rectangular plate that closes the opening 12, and has a round hole-shaped perforation 11 a into which the pair of protruding shafts 13 a and 13 a can be fitted on the outer surfaces of both ends in the longitudinal direction. 11a is drilled, and perforations 11b and 11b that can be fitted to the projecting shafts 13b and 13b are drilled.

  With the above configuration, when the lid body 11 is closed, the perforated holes 11a, 11a, 11b, and 11b of the lid body 11 are fitted and pivotally supported on the projecting shafts 13a, 13a, 13b, and 13b, respectively. Thus, in the fitted state, even if the lid body 11 is opened upward, the round hole-shaped perforations 11a, 11a, 11b, 11b and the projecting shafts 13a, 13a, 13b, 13b are not detached. In other words, the lid 11 is held so as not to be opened upward.

  Next, the retracting mechanism of the projecting shafts 13a, 13a, 13b, 13b will be described with reference to FIGS. Since the protruding and retracting mechanisms of the projecting shafts 13a, 13a, 13b, and 13b are similarly configured, only the projecting and retracting mechanism of the projecting shaft 13a will be described below, and the other projecting shafts 13a, 13b, and 13b The description will be omitted.

  The projecting shaft 13 a is inserted into a hole 16 b formed in the longitudinal direction in the inner wall 16 a that partitions the opening 12 and the housing 16, and is integrally formed with the moving body 18 installed in the housing 16. ing. The moving body 18 is provided so as to be reciprocally movable in a substantially horizontal direction in the longitudinal direction of the opening 12 by a guide member (not shown), and is formed in an up-down direction formed at an end of the moving body 18 on the opening 12 side. A projecting shaft 13a projects toward the opening 12 on the upper surface of the wall 18a facing the opening facing the opening 12. And it is always urged | biased toward the protrusion position which protrudes in the opening part 12 with the leaf | plate spring 17 as a protruding shaft urging | biasing means contact | abutted on the surface on the opposite side to the opening part 12 in the wall part 18a.

  That is, the moving body 18 is configured so that the protruding shaft 13a can move between the protruding position where the protruding shaft 13a protrudes into the opening 12 and the retracted position where the protruding shaft 13a is retracted into the accommodating portion 16 outside the opening 12. It is provided so as to be able to reciprocate in the longitudinal direction, and is always urged toward the opening 12 by the leaf spring 17 so that the protruding shaft 13a is always urged toward the protruding position. . That is, the movable body 18 having the projecting shaft 13a and the guide member (not shown) that guides the movable body 18 so as to reciprocate are provided with the horizontal retracting mechanism of the present invention for projecting and retracting the projecting shaft 13a in a substantially horizontal direction. It is composed.

  On the upper surface of the accommodating portion 16, an opening button 15a as an opening operation portion of the lid body 11 is provided so as to be movable in the vertical direction by a guide member, and from the upper side to the lower side on the back side of the opening button 15a. An inclined portion 19 that is gradually inclined is formed on the opening 12 side, and the inclined portion 19 is in contact with an end portion on the opening 12 side of the convex portion 18 b provided on the moving body 18. That is, the release button 15a and the guide member that guides the release button 15a so as to be movable in the vertical direction constitute the vertical operation mechanism of the present invention that allows the release button 15a as the release operation unit to be operated in the vertical direction.

  Since the convex portion 18 b of the moving body 18 is urged in the substantially horizontal direction (longitudinal direction) toward the opening 12 by the plate spring 17, the horizontal urging force is applied via the inclined portion 19. This is transmitted as an urging force for urging the release button 15a upward. That is, the convex portion 18b and the inclined portion 19 of the moving body 18 transmit the up / down movement of the release button 15a constituting the up / down operation mechanism to the horizontal movement of the moving body 18 constituting the horizontal retracting mechanism. A transmission mechanism is configured.

  In addition, the projecting shafts 13a, 13a, 13b, and 13b installed at a total of four locations spaced in the depth direction at both ends in the longitudinal direction of the opening 12 correspond to the projecting shafts 13a, 13a, 13b, and 13b. A book composed of the up / down operation mechanism, the horizontal retracting mechanism, and the transmission mechanism is provided on each of the opening buttons 15a, 15a, 15b, 15b provided at a total of four positions spaced apart in the depth direction on the upper surfaces of the accommodating portions 16, 16. It is linked via the opening means of the invention.

  Next, the opening operation of the lid 11 will be described. As shown in FIG. 5A, one of the opening buttons spaced apart in the depth direction, that is, the opening buttons 15a, 15a or the opening buttons 15b, 15b. One of them is pressed against the urging force of the leaf spring 17 described above.

  As shown in FIG. 5B, for example, by pressing the release buttons 15a and 15a at both ends in the longitudinal direction, the inclined portion 19 moves downward, while pressing the convex portion 18b to the right side in the figure, The projecting shafts 13a and 13a provided on the moving body 18 are pressed toward the right side in the drawing, that is, toward the retracted position.

  When the projecting shafts 13a fitted to the perforations 11a are disengaged at both ends in the longitudinal direction, the projecting shaft 13a side of the lid body 11 is pushed upward by the plate spring 14 biased upward. Thus, the lid body 11 pushed upward can be rotated around the protruding shaft 13b still fitted in the perforation 11b and can be opened upward by a human hand.

  Also, when the release buttons 15b and 15b separated in the depth direction are pressed, the protruding shafts 13b and 13b are disengaged by the same operation as described above, and can be rotated around the protruding shafts 13a and 13a. I can open it. That is, by selecting and pressing one of the release buttons 15a and 15a or the release buttons 15b and 15b, the projecting shafts 13a and 13a or the projecting shafts 13b and 13b are retracted from the projecting position to the retracted position. 12 can be opened and closed from both sides in the depth direction.

  Further, when the release buttons 15a and 15a are pressed and the release buttons 15b and 15b are pressed, all the fittings of the lid body 11 to the projecting shafts 13a, 13a, 13b, and 13b installed in a total of four places are released. The lid 11 can also be removed from the opening 12.

  Next, the closing operation of the lid 11 will be described. As shown in the figure, a tapered surface 21 is formed below the perforation 11a so as to be spaced downward from the protruding shaft 13a. Further, the end surface of the protruding shaft 13 a on the opening 12 side is formed on a tapered surface 22 that is substantially parallel to the tapered surface 21. Although not shown in particular, a taper surface similar to the above is formed below the total of four perforations 11a, 11a, 11b, and 11b, and a total of four protruding shafts 13a, 13a, 13b, and 13b are formed. These end faces are respectively formed on tapered surfaces similar to those described above.

  By pressing the cover body 11 downward about the protruding shaft 13b (not shown) against the bias of the leaf spring 14, the tapered surface 21 of the cover body 11 contacts the tapered surface 22 of the protruding shaft 13a. The projecting shaft 13a is pressed toward the right side in the drawing, that is, toward the retracted position against the urging of the leaf spring 17. Then, as shown in the figure, the lid body 11 is further pressed downward, the tapered surface 21 is separated from the tapered surface 22, and the protruding shaft 13 a pressed to the right side in the drawing is urged by the leaf spring 17 and illustrated. It moves toward the left side, that is, toward the protruding position, and enters and fits into the perforation 11a.

  Thus, by pressing the lid 11 using the tapered surface 21 of the lid 11 and the tapered surface 22 substantially parallel to the tapered surface 21, the lid 11 does not require any special fitting operation. With the opening 12 closed, the projecting shafts 13a and 13a and the projecting shafts 13b and 13b can be fitted (pivoted) to the perforations 11a and 11b.

  According to the characteristics of the opening / closing mechanism of the lid body 11 having the above-described configuration, both sides in the depth direction of the lid body 11 are biased by the leaf springs 17 as the projecting shaft biasing means in the closed state of the opening portion 12. Since it is pivotally supported by the pair of projecting shafts 13a, 13a or projecting shafts 13b, 13b, it is stably held and is operated by operating the release buttons 15a, 15a (or 15b, 15b) as the opening operation portion. When the projecting shafts 13a and 13a (or projecting shafts 13b and 13b) are retracted from the projecting position in the opening 12 to the retracted position in the accommodating portion 12, the other projecting shafts 13b and 13b (or projecting shafts 13a and 13a) are recovered. ), The lid 11 can be rotated, so that the opening 12 can be easily selected from both sides of the opening 12 in the depth direction.

  Further, by providing a leaf spring 14 as a lid urging means for urging the lid 11 upward on both sides in the depth direction of the opening 12, one of the buttons can be operated by operating the release buttons 15a and 15a (or the release button 15b15b). When the projecting shafts 13a and 13a (or projecting shafts 13b and 13b) are retracted from the opening 12, the end portions of the projecting shafts 13a and 13a (or projecting shafts 13b and 13b) retracted in the depth direction of the lid body 11 Therefore, the lid 11 can be easily opened without providing a handle or the like on the lid 11.

  Further, as in the present embodiment, the lid 11 that can close almost the entire area of the opening 12 is opened even when the upper surface of the lid 11 is substantially flush with the upper surface of the top plate 3 in the closed state. By operating the buttons 15a and 15b, one of the long sides is pushed up above the opening 12, and thus the end of the lid 11 can be grasped and opened, so that the top surface of the lid 11 and the ceiling can be opened in the closed state. Since no step or the like is formed between the top surface of the plate 3, the usability of the top plate 3 is not impaired.

  Further, according to the characteristics of the opening / closing mechanism of the lid body 11 described above, the release button 15a (or the release button 15b) and the leaf spring 14 for opening the lid body 11 are provided in the housing portion 16 having a hollow structure. Not only can the space of the opening 12 be secured as a wiring space, for example, but the opening operation of the opening button 15a (or the opening button 15b) is easier to perform.

  Further, according to the characteristics of the opening / closing mechanism of the lid 11 described above, the opening button 15a (or the opening button 15a (or the opening button 15b) is provided by the inclined portion 19 that connects the vertical operation mechanism of the opening button 15a (or the opening button 15b). Alternatively, the vertical movement caused by the pressing operation of the release button 15b) is transmitted to the protruding shaft 13a (or the protruding shaft 13b) that moves in and out in a substantially horizontal direction, so that the protruding shaft 13a (or the protruding shaft 13b) is moved back and forth. Easy to do.

  Further, according to the characteristics of the opening / closing mechanism of the lid body 11 described above, the lid body 11 can be installed in the top plate opening 4 of the top plate 3 as an integrated frame body. The attachment work to the plate 3 is easy.

  Although the embodiments of the present invention have been described with reference to the drawings, the specific configuration is not limited to these embodiments, and modifications and additions within the scope of the present invention are included in the present invention. It is.

  For example, in the above embodiment, the projecting shaft 13a (or projecting shaft 13b) is installed so that the axial centers coincide with each other at both ends in the longitudinal direction of the opening 12, but the projecting shaft is installed at the locations. Is not necessarily limited to the present embodiment, and may be installed only at one end of the opening in the longitudinal direction.

  Further, in the above-described embodiment, the release button 15a (or the release button 15b) having an up / down operation function that can be pressed in the up / down direction is shown as the release operation unit. For example, the lid may be opened so as to be selectable in the depth direction by sliding an opening operation unit having a slide operation function capable of sliding in a predetermined direction.

  Moreover, in the said Example, the release button 15a (or release button 15b) as an opening operation part which makes the protruding shaft 13a (or protruding shaft 13b) retreat is provided individually corresponding to each protruding shaft. However, the number of opening operation units is not necessarily limited to the present embodiment, and for example, one opening operation unit is provided that allows the respective projecting shafts provided at both ends of the opening to coincide with each other at the same time. It may be done. Furthermore, the protruding shaft 13a or the protruding shaft 13b may be selectively retracted by changing the operation mode of one opening operation portion.

It is a perspective view which shows the whole image of the table which attached the cover body in Example 1 of this invention. (A) is a perspective view which shows the state which open | released the cover body from the one side of the depth direction, (b) is a perspective view which shows the state open | released from the other side like (a). (A) is a perspective view which shows the longitudinal direction edge part of the opening part in the state which obstruct | occluded the cover body, (b) is a longitudinal direction edge part of the opening part in the state which opened the cover body similarly to (a). FIG. (A) is a top view which shows the inside of the accommodating part in the state which obstruct | occluded the cover body, (b) is a top view which shows the inside of an accommodating part at the time of pressing an open button like (a). (A) is AA sectional drawing of Fig.4 (a), (b) is A'-A 'sectional drawing of FIG.4 (b).

Explanation of symbols

1 Table 2 Leg 3 Top plate 4 Top plate opening 10 Opening unit (frame)
DESCRIPTION OF SYMBOLS 11 Cover body 11a, 11b Perforation 12 Opening part 13a, 13b Projection shaft 14 Leaf spring (cover body biasing means)
15a, 15b Open button (open operation part)
16 receiving portion 17 leaf spring (protruding shaft biasing means)
18 Moving body 19 Inclined part

Claims (5)

A lid opening / closing mechanism in the top plate that supports the lid that closes the opening formed in the top plate so that the lid can be opened and closed from both sides in the depth direction of the opening,
Provided on both sides in the depth direction of the opening so as to be freely retractable between a protruding position protruding into the opening and a retracted position retracted toward the outside of the opening, and the lid at the protruding position A pair of projecting shafts that pivotably support,
Projecting shaft biasing means for biasing the pair of projecting shafts toward the opening in the axial direction;
An opening means that has an opening operation portion that is operated when opening the lid, and that retracts at least one of the pair of projecting shafts outside the opening in accordance with an operation of the opening operation portion;
With
In the closed state of the opening, both sides in the depth direction of the lid body are pivotally supported by a pair of projecting shafts urged toward the projecting position, and one projection according to the operation of the opening operation unit. A lid opening / closing mechanism in the top plate, wherein the lid is pivotally supported by the other projecting shaft so that the lid can be opened by being retracted to the retracted position.   The lid opening / closing mechanism for the top plate according to claim 1, further comprising lid body biasing means for biasing the lid body upward on both sides in the depth direction of the opening.   A housing portion having a hollow structure is formed on a side of the opening portion, the opening operation portion is provided on an upper surface of the housing portion, and the protruding shaft biasing means is provided in the housing portion. Item 3. A lid opening / closing mechanism for the top plate according to Item 1 or 2.   The opening means includes an up / down operation mechanism that allows the opening operation portion to be operated in an up / down direction, a horizontal exit / retreat mechanism that moves the protruding shaft in and out in a substantially horizontal direction, and an up / down operation of the up / down operation mechanism. 4. The transmission mechanism according to claim 3, further comprising: a transmission mechanism configured to transmit to a horizontal movement of a retraction mechanism, wherein the up / down operation mechanism, the horizontal withdrawal / retraction mechanism, and the transmission mechanism are accommodated in the accommodation portion. Opening and closing mechanism of the lid on the top plate.   The said opening part and the said accommodating part are formed, the frame body is formed, and this frame body can be mounted | worn with the top plate opening formed in the said top plate. Opening and closing mechanism of the lid on the top plate.

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