JP3194395U - Locking device for V-shaped stay on folding support for table - Google Patents

Abstract

A locking device for a V-shaped stay in a folding support leg for a table that can be handled with confidence without being injured. SOLUTION: A plastic substrate A and a plastic covering body B having an inverted U-shaped cross section that overlaps with the substrate are formed on both the left and right sides of the upper surface of the substrate, with protrusions 4 extending substantially over the entire length. An inclined edge 5 is provided at the rear part between the projecting edges, and the bent part 10 of the V-shaped stay D of the U-shaped folding support leg is formed by the lower edges of the left and right side walls 8 and the projecting edges of the substrate. A guide hole 9 that slides back and forth is formed, and an intermediate portion of the operation lever 11 is pivotally mounted in the covering body, the front end is pressed against the substrate by a spring 12, and the button 13 of the operation lever is attached to the upper surface of the covering body. A holding portion 17 for a V-shaped stay refracting portion was formed at the rear end of the guide hole, and a holding portion 17 for the V-shaped stay refracting portion was formed at the rear end of the guide hole. [Selection] Figure 5

Description

  The present invention relates to a locking device for a V-shaped stay on a U-shaped folding support leg attached to the lower surface of a table.

  Japanese Utility Model Laid-Open No. 55-173930 discloses a fixed support in which a refractive base of a V-shaped stay that supports a pair of left and right U-shaped folding support legs attached to the lower surface of a desk so as to be freely raised and lowered is fixed to the lower surface of the desk. The folding leg of the desk is provided with a fixing means for maintaining the standing state of the supporting leg by holding the refracting part of the U-shaped folding supporting leg at the front end of the guiding hole. Is disclosed.

  The fixed support is formed by cutting a band-shaped metal plate into a U-shaped cross section by press working and forming guide holes over substantially the entire length of the formed side plates in the same manner as in this general type. Molded, when operating the lever, which is a fixing means, accidentally rubbing the upper edge of both side plates to injure your hand, or pinching your fingers between the lever and both side plates was there.

Japanese Utility Model Publication No. 55-173930

  An object of the present invention is to provide a locking device for a V-shaped stay in a folding support leg for a table that can be handled safely without injury.

  A locking device for a V-shaped stay in a folding support for a table according to claim 1 of the present invention is a plastic substrate that is fixed to the lower surface of the table at both front and rear ends, and an inverted U-shaped plastic that is superposed on the substrate. A fixing piece having mounting holes is provided at both front and rear ends of the substrate, and protruding edges are formed on both the left and right sides of the upper surface over substantially the entire length. Inclined edges are provided, and fixing pieces are provided at both front and rear ends of the covering body so as to have mounting holes that match the mounting holes of the base. The lower edges of the left and right side walls of the covering body and the protruding edges of the substrate A guide hole in which the refracting part of the V-shaped stay of the U-shaped folding support leg slides back and forth is formed, and the middle part of the operation lever is pivotally mounted in the sheath, and the front end is pressed against the substrate by a spring. The button formed on the upper end of the control lever. The holding portion of the bent portion of the V-shaped stay blocked by the lower end of the operation lever is formed at the front end of the guide hole, and the rear end of the guide hole is formed on the substrate. A holding portion for the refracting portion of the V-shaped stay is formed by the inclined edge and the inclined edge formed at the lower edge of the left and right side walls of the covering.

  A locking device for a V-shaped stay in a folding support for a table according to claim 1 of the present invention has a pair of left and right U-shaped folding support legs mounted on the lower surface of the table so as to be freely raised and lowered. The refracting part of the V-shaped stay pivotally attached to the front and rear support legs is slidably fitted into the front and rear long guide holes formed by the base and the cover, and then the base and the cover are fixed. Screw the piece to the bottom of the table. The position to be screwed is V-shaped when the U-shaped folding support leg stands up at the front end of the guide hole when the U-shaped folding support leg stands up, and the U-shaped folding support leg falls on the lower surface of the table. This is the position where the stay refracting portion stops at the rear end of the guide hole.

  In this way, in the established state of the U-shaped folding support legs attached to the lower surface of the table, after pressing the button protruding from the window hole of the cover and lifting the lower end of the operating lever to release the blocking of the guide hole, When the U-shaped folding support leg is tilted to the lower surface of the table, the refracting part of the V-shaped stay reaches the rear part of the guide hole and fits into the holding part of the refracting part formed upward, while the U-shaped folding supporting leg is prone The state is retained.

  When the U-shaped folding support leg that lies down on the lower surface of the table is raised, the refracting part of the V-shaped stay slides forward through the guide hole, and the lower end of the operating lever is pushed up against the spring to raise the front end of the guide hole Thus, the folding support leg is maintained in an established state by being held by a holding portion formed by the front end of the guide hole and the lower end of the operation lever lowered by the spring.

  The stay locking device for the table folding support legs according to the first aspect of the present invention is such that the standing state and the prone state of the U-shaped folding support legs are reliably maintained by the operation lever, as in the conventional device. is there.

  In particular, the locking device of the present invention is formed by molding a substrate and a covering body with plastic, forming the covering body in an inverted U-shaped cross section, providing an operating lever in the covering body, and operating the lever from a window hole formed in the covering body. Because only the button for projecting is projected, the lever operation is easy to understand, and there is no risk of injury to the hand even if the finger is pinched during button operation or the cover is gripped strongly when handling the table. Can be treated with peace of mind.

  In addition, the guide hole formed by the lower edge of the left and right side walls of the cover and the protruding edge of the substrate guides the refracting part of the V-shaped stay that supports the U-shaped folding support legs, so that it can be easily reciprocated back and forth. Since it is configured to move, it is extremely easy to undulate the U-shaped folding support legs.

It is a front view which shows embodiment of the locking device of the V-shaped stay in the folding support leg for tables which concerns on this invention. It is a top view of embodiment same as the above. It is an expanded sectional view of the XX line shown in FIG. It is an expanded sectional view of the YY line shown in FIG. It is a longitudinal cross-sectional view which shows the attachment state to the table of embodiment same as the above. It is a front view which shows the use condition of embodiment same as the above. It is a bottom view which shows the use condition of embodiment same as the above.

  Embodiments of a locking device for a V-shaped stay in a table folding support leg according to claim 1 of the present invention will be described in detail with reference to FIGS.

  Reference symbol A denotes a plastic substrate that is fixed to the lower surface of the table 1 at both front and rear ends, provided with fixing pieces 3 having mounting holes 2 formed at both front and rear ends, and protrusions 4 extending substantially over the entire length on the left and right sides of the upper surface. And an inclined edge 5 is provided at the rear part between the protruding edges 4.

  Reference numeral B denotes a plastic covering body having an inverted U-shaped cross-section superimposed on the substrate a, and provided with fixing pieces 7 having attachment holes 6 formed in the front and rear ends that match the attachment holes 2 of the base A. 7 is provided with a protruding edge 7a that fits to the outer periphery of the fixed piece 3 of the substrate A.

  A guide hole 9 is formed by a notch 8a formed over substantially the entire lower end of the left and right side walls 8 in the cover B and the protrusion 4 of the substrate A, and the guide hole 9 can be raised and lowered on the lower surface of the table 1. The refracting portion 10 of the V-shaped stay D that supports the U-shaped folding support leg C attached to the slidable portion 10 is slidably fitted back and forth. As shown in FIG. 5, the refracting unit 10 is fitted with a roller 10 b that rolls on the substrate A on a horizontal shaft 10 a that movably passes through the guide hole 9.

  In the cover B, an intermediate portion of the operation lever 11 is axially attached, and a front end of the axial attachment portion is pressed against the substrate A by a coil spring 12 to block the front end of the guide hole 9. . A button 13 is provided at the upper end of the operating lever 11 and protrudes upward from a window hole 14 formed in the upper surface 13 of the cover B. A holding portion 15 of the refracting portion 10 of the V-shaped stay D is formed at the front end of the guide hole 9 between the lower end of the operation lever 11, and the inclined edge 5 of the substrate A and the covering are formed at the rear end of the guide hole 9. A holding part 17 of the refracting part 10 in the V-shaped stay D is formed by the protruding piece 16 suspended in the body B.

  While the covering body B is stacked on the substrate A, the refracting portion 10 of the V-shaped stay D is passed between the protrusion 4 of the substrate A and the notches 8a of the left and right side walls 8 of the covering body B. The roller 10b is placed on the substrate, the fixing piece 7 provided before and after the covering body B is overlapped with the fixing piece 3 provided before and after the substrate A, and the protruding edge 7a provided on the outer periphery of the fixing piece 7 is provided. After the board A and the cover B on which the guide hole 9 is formed are integrated by fitting to the outer periphery of the fixed piece 3, the mounting holes 2 and 6 of the fixed pieces 3 and 7 are used as shown in FIG. And fasten it to the lower surface of the table 1.

  As shown in FIG. 5 to FIG. 7, when the U-shaped folding support leg C stands upright, when the button 13 is pushed to raise the lower end of the operation lever 11 and the folding support leg C is tilted, the refraction at the V-shaped stay D will occur. The roller 10b of the part 10 rolls from the clamping part 15 to the rear of the guide hole 9, and is held by the holding part 17 inclined upward at the rear end, as shown by a chain line in FIG. Stable on the bottom surface in a prone state.

  When the folded supporting leg C is raised on the lower surface of the table 1, the roller 10b of the refracting portion 10 slides forward through the guide hole 9 from the holding portion 17 and pushes up the lower end when it collides with the lower end of the operating lever 11. As shown by the solid line in FIG. 5, the roller 10b of the refracting unit 10 is held by the clamping unit 15, and the folding support leg C is stabilized in the established state.

  In the above embodiment, unless the button 13 is pressed in the state in which the folding support leg C is established, the folding support leg C is not likely to fall down, and therefore the table 1 does not fall on its own.

  The substrate A and the covering body B are made of plastic, and the covering body B has an inverted U-shaped cross section, and since only the button 13 protrudes from the surface, the operation is easy, and a finger is sandwiched during the operation. There is no risk of scratching.

  Further, the guide hole 9 is smoothly formed by the notches 8a of the left and right side walls 8 in the cover B and the protrusion 4 of the substrate A, and the upper surface of the substrate is also formed flat, so that the V-shaped stay D is formed. The refracting portion 10 can be moved easily.

  Further, since the outer periphery of the fixed piece 7 in the covering body B is provided with a protruding edge 7a that fits to the outer periphery of the fixing piece 3 in the substrate A, the combination of the covering body B with the substrate A and the lower surface of the table 1 can be accurately applied. Can be fixed.

A base plate B covering C folding support leg D V-shaped stay 1 table 2 mounting hole 3 fixed piece 4 protrusion 5 inclined edge 6 mounting hole 7 fixed piece 8 left and right side walls 8a notch 9 guide hole 10 refraction part 11 operation Lever 12 Coil spring 13 Button 14 Window hole 15 Holding part 16 Projection piece 17 Holding part

Claims (1)

  A fixed piece comprising a plastic substrate fixed to the lower surface of the table at both front and rear ends, and a plastic cover having an inverted U-shaped cross section that overlaps with the substrate, and mounting holes formed at the front and rear ends of the substrate. Protruding edges are formed on both the left and right sides of the upper surface over substantially the entire length, and inclined edges are provided at the rear part between the protruding edges, and the front and rear ends of the covering body match the mounting holes of the base. A fixing piece having a mounting hole is provided, and a guide in which the refracting portion of the V-shaped stay of the U-shaped folding support leg slides back and forth by the lower edge of the left and right side walls of the cover and the protruding edge of the substrate. A hole is formed, and the middle part of the control lever is pivotally mounted in the cover, the front end is pressed against the substrate by a spring, and the button formed on the top end of the control lever protrudes from the window hole formed on the top surface of the cover The front end of the guide hole is blocked by the lower end of the operation lever. The bent portion of the bent portion of the V-shaped stay is formed, and the rear end of the guide hole is formed into a V-shape by an inclined edge formed on the substrate and an inclined edge formed on the lower edges of the left and right side walls of the cover. A locking device for a V-shaped stay in a folding support leg for a table, characterized in that a holding portion for a bending portion of the stay is formed.

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