JP2011169069A - Portable workbench - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable workbench which allows a gable side end sensing bar to be quickly and easily attached and detached. <P>SOLUTION: The portable work bench includes ladder-like leg bodies 2, 2 provided at both ends of a top plate 1, and hand-hold bars 5 erected at four corners of the top plate 1. In extending the gable side end sensing bar 7 for notifying a worker of the gable side end of the top plate 1, between the upper ends of both hand-hold bars 5, 5 facing in the short-side direction of the top plate 1, a base end 8 of the gable side end sensing bar 7 is rotatably fitted to the upper end of one hand-hold bar 5 out of both hand-hold bars 5, 5 facing in the short-side direction of the top plate 1 so that the gable side end sensing bar 7 turns along a surface orthogonal to the longitudinal direction of the top plate 1, and a locking protrusion 9 formed at the tip of the gable side end sensing bar 7 is detachably engaged into a locking hole 10 provided on the upper end side face of the other hand-hold bar 5. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable work table used when performing work such as interior finishing of a ceiling, wiring in a ceiling, piping, and the like at a construction site or the like.

  When a conventional worker rides on the top board and performs the above-mentioned work, the worker must work while checking the work position of the step so that the foot is not removed from the top board. However, in actual work, it is difficult to check the end of the top plate, particularly the end on the side of the wife, and a situation in which the stepping off of the foot tends to occur from the end of the end of the wife.

  The applicant of the present invention first uses a clue bar that is erected at the four corners of the top plate in order to prevent an unexpected fall when the ladder-shaped leg is ascended and descended. The wife side end detection bar is bridged between the upper ends of the two clasp bars facing in the direction, and when the operator touches this detection bar, the worker senses that it is the wife side end of the top board. Thus, a portable work table has been filed so as to prevent an unexpected fall from the end of the top side of the top plate during work on the top plate.

  In the workbench of the previous application, both ends of the wife side detection bar are detachably attached via attachments between the upper ends of the two clasp bars facing the short direction of the top plate. Therefore, there is a problem that it takes time and effort to install and remove the wife side detection bar.

  In view of the above circumstances, an object of the present invention is to provide a portable work table that allows a wife end detection bar to be attached and detached quickly and easily.

  Means for solving the above problems will be described with reference numerals in the embodiments described later. Claim 1 is provided with ladder-like legs 2 and 2 at both ends of the top plate 1, In the portable work table in which the clasp bar 5 is erected at the four corners, between the upper end parts of the two clasp bars 5 and 5 facing in the short direction of the top panel 1, it is the wife side end of the top panel 1 When bridging the wife end detection bar 7 for notifying, the base end 8 of the wife end detection bar 7 is one of the two clasp bars 5 and 5 facing the short direction of the top board 1. A locking projection formed on the tip of the wife side end sensing bar 7, which is pivotally attached to the upper end of 5 so that the sensing bar 7 rotates along a plane perpendicular to the longitudinal direction of the top plate 1. 9 is configured to be detachably engaged with a locking hole 10 provided on the side surface of the upper end portion of the other clue bar 5.

  According to a second aspect of the present invention, in the portable workbench according to the first aspect, on the side of the lower end of the one clue bar 5, the wife end detection bar 7 is rotated along the one clasp bar 5. In addition, a locking hole 11 into which the locking projection 9 is detachably engaged when folded is provided.

  According to a third aspect of the present invention, in the portable workbench according to the first aspect, the locking protrusion 9 of the wife side end portion sensing bar 7 has an upper end of the other clue bar 5 by the elastic force of the bar main body portion 7o. It is biased so as to be always engaged with the locking hole 10 provided on the side surface of the part.

  According to a fourth aspect of the present invention, in the portable workbench according to the first aspect, the locking projection 9 of the wife side end sensing bar 7 has a lower end of the one clue bar 5 by the elastic force of the bar main body 7o. It is biased so as to always engage with the locking hole 11 provided on the side surface of the part.

  The effect of the invention by the above-described solution means will be described with reference numerals of embodiments to be described later. According to the invention according to claim 1, between the two handhold bars 5 and 5 facing the short direction of the top plate 1 In order to bridge the wife end detection bar 7, the base end 8 of the detection bar 7 is connected to the upper end of one of the clasp bars 5 and 5 facing the short direction of the top plate 1. Next, the sensing bar 7 is pivotally mounted so as to rotate along a plane orthogonal to the longitudinal direction of the top plate 1, and the locking protrusion 9 formed at the tip of the sensing bar 7 is attached to the other clue bar 5. It is designed to be detachably engaged with a locking hole 10 provided on the side surface of the upper end portion. When using the wife side end portion detection bar 7, the detection bar 7 is centered on the base end portion 8. It is only necessary to rotate and engage the locking protrusion 9 at the tip end portion with the locking hole 10 on the side surface of the upper end portion of the other clue bar 5, and the sensing bar 7. When not in use, the base end 8 can be rotated around the base end 8 so that it can be folded and stored along one of the clue bars 5 so that the wife side end detection bar 7 can be quickly and easily attached and detached. Can be done.

  According to the second aspect of the present invention, when the wife side end sensing bar 7 is folded along the one clasp bar 5 and stored on the side surface of the lower end of the one clue bar 5, the locking protrusion is provided. Since the locking hole 11 into which the part 9 is detachably engaged is provided, by engaging the locking projection 9 in the locking hole 11, the wife end detection bar 7 is folded into the storage position. It can be fixed, and the sensing bar 7 does not become dull when the portable work table T is packed or transported, which is very effective.

  According to the third aspect of the present invention, when the wife side end sensing bar 7 is used, the locking projection 9 is provided on the side of the upper end of the other clue bar 5 by the elastic force of the bar main body 7o. Since it is urged to always engage with the engaging hole 10, no special locking means for holding the engaging projection 9 in the engaging hole 10 is required when the sensing bar 7 is used. Thus, the structure can be simplified.

  According to the invention of claim 4, even when the wife side end sensing bar 7 is folded, the locking projection 9 is provided on the side surface of the lower end of the one clue bar 5 by the elastic force of the bar body 7 o. In addition, since it is urged to always engage with the engaging hole 11, a special locking means for holding the engaging protrusion 9 engaged with the engaging hole 11 when the sensing bar 7 is folded and stored. Can be eliminated, and the structure can be simplified.

(a) is a top view which shows embodiment of the portable worktable which concerns on this invention, (b) is a front view. (a) is a side view of the portable work table, and (b) is an AA line enlarged cross-sectional view of (b) of FIG. It is an enlarged view of the part shown by the arrow B of (a) of FIG. (a) is a bottom view of the portable workbench with both legs folded, and (b) is a front view with the folded portable workbench folded as shown in (a).

  A preferred embodiment of a portable worktable according to the present invention will be described below with reference to the drawings. In the worktable T shown in FIGS. 1 and 2, ladder-like legs 2, respectively, at the left and right ends of the top plate 1. 2 is a legged state in which the rotating bracket 3 stands upright as shown in FIG. 1A, and a closed leg state that is folded along the lower surface of the top plate 1 (see FIG. 4). A stay 4 is provided between the top plate 1 and each leg 2 so as to be freely bent. As shown in FIG. 2 (a), each ladder-like leg 2 is composed of a pair of leg posts 2a, 2a arranged in a slightly divergent shape, and a step horizontally laid in a plurality of stages between the two leg posts 2a, 2a. It is comprised by the crosspiece 2b.

  At the four corners of the top plate 1, a clasp bar 5 is provided so as to be positioned at the elevator port between the leg 2 and the top plate 1, and each clasp bar 5 has a lower end on the outer surface side of the leg 2. It is pivotally mounted by a mounting bracket 6 attached to the upper end portion, and stands up as shown by a solid line in FIG. 1 (a) and FIG. 2 (a), and in FIG. 1 (a) and FIG. As shown by the phantom line in (a), the posture can be changed to the folded posture folded along the pillar 2a of the ladder-like leg 2.

  And between the upper end part of one clasp bar 5 and the upper end part of the other clasp bar 5 of the two clasp bars 5, 5 facing the short side direction of the top panel 1, A wives side end detection bar 7 is provided to inform the user of the existence. This wife side edge detection bar 7 is used to detect that the touching point is the end of the girder side of the top board 1 when an operator working on the top board 1 touches it. So, it is weak in structural strength so that it collapses when the operator puts weight on it or touches it a little harder, and it has no role as the upper horizontal rail spanned as a handrail between the upper ends of the opposite clue bars Is different. However, the use of a handrail member having a high structural strength is not excluded.

  The wife end detection bar 7 is formed of a metal wire. As can be seen from FIG. 3, the base end 8 of the wife side end detection bar 7 is one of the two hand-holding bars 5 and 5 facing the short side of the top plate 1. The sensing bar 7 is pivotally attached to the upper end portion of the clue bar 5 so as to rotate along a plane orthogonal to the longitudinal direction of the top plate 1, and is formed at the distal end portion of the wife side end portion sensing bar 7. The locking projection 9 is detachably engaged with a locking hole 10 provided on the side of the upper end portion of the other clue bar 5, and this locking projection 9 has the bar main body portion 7o. By the elastic force, it is urged to always engage with the locking hole 10.

  As shown in FIG. 2 (b), on the side surface of the lower end of the one clasp bar 5 on which the wife end detection bar 7 is pivotally attached, the wife end detection bar 7 is connected to the one clue. A locking hole 11 is provided in which the locking projection 9 is detachably engaged when rotated and folded along the bar 5.

  Further, as shown in FIG. 1B and FIG. 3, the bar body portion 7o of the wife side end sensing bar 7 is formed in a substantially trapezoidal shape so as to have a certain degree of rigidity. A base end portion 8 bent at a right angle from one end portion of the bar main body portion 7o is pivotally attached to the upper end portion of one of the clue bars 5 as a support shaft portion. The locking protrusion 9 bent at a right angle from the other end is always engaged with the locking hole 10 provided on the side of the upper end of the other clasp bar 5 by the elastic force of the bar body 7o. You can get it.

  The usage of the portable worktable T configured as described above will be described. FIG. 1 shows the use state of the worktable T. Both legs 2 and 2 are opened, and each clasp bar 5 stands up. The wife end detection bar 7 is stretched between the upper ends of the clasp bars 5 and 5 facing in the short direction and held in the posture.

  Therefore, an operator who goes up from the leg 2 to the top board 1 can go up on the top board 1 while securing safety by grasping the clue bar 5. An operator working on the top board 1 has the wife side end detection bar 7 spanned between the clasp bars 5 and 5 facing in the short direction. When touched, it can be sensed that the touched point is the end of the top side of the top plate 1, and accidents such as falling from the end of the end of the end of the wife can be prevented.

  When the work table T is folded after use, the wife end detection bar 7 is first folded. When the sensing bar 7 is folded, as shown in FIG. 3, the operator pulls the tip end side of the sensing bar 7 in the direction of the arrow by hand, and the engaging hole on the side surface of the upper end of the clasp bar 5 with elastic biasing force. The locking projection 9 engaged with the cable 10 is extracted from the locking hole 10, and in this state, the sensing bar 7 is moved around the base end 8 as shown in FIG. 2 is rotated about 270 ° along a plane orthogonal to the longitudinal direction of the rod, and the locking projection 9 at the tip is engaged with the locking hole 11 on the side of the lower end of the clasp bar 5, and FIG. , (B) is held in the storage state along the side surface of the clue bar 5 as indicated by phantom lines.

  After the wife side end detection bar 7 is folded and stored along the clue bar 5 in this way, each clasp bar 5 is attached to the leg 2 as shown in phantom lines in FIGS. 1 (a) and 2 (a). 4a, and then, as shown in FIGS. 4 (a) and 4 (b), both legs 2 and 2 are folded so as to be parallel to the lower surface of the top board 1 and closed. Fold so that the entire T is flat. Thus, by folding the entire work table T in a flat state, it becomes convenient for transportation and storage. FIG. 4B shows a state in which a plurality of work tables T folded in a flat state are stacked.

  Note that the clasp bar 5 in which the wife side end detection bar 7 is folded and stored is folded along the pedestal 2a of the leg 2 as shown in phantom lines in FIGS. 1 (a) and 2 (a). Therefore, in order to set the wife end detection bar 7 to the use state indicated by the solid line in FIG. That is, after each clasp bar 5 is raised from the folded position to the standing position, the locking projection 9 of the sensing bar 7 that is engaged in the locking hole 11 on the side surface of the lower end of the clasp bar 5 is elastically biased. Then, the sensor bar 7 is extracted from the locking hole 11 so that the sensing bar 7 extends about the base end 8 in the direction opposite to the arrow shown in FIG. It is only necessary to rotate 270 ° and engage the locking projection 9 at the tip with the locking hole 10 on the side of the upper end of the other clue bar 5.

  According to the portable worktable T described above, the base end portion of the sensing bar 7 is provided when the wife side end sensing bar 7 is bridged between the two hand-holding bars 5 and 5 facing in the short direction of the top board 1. The sensing bar 7 is rotated along a surface perpendicular to the longitudinal direction of the top plate 1 at the upper end of one of the two holding rods 5 and 5 facing the short side direction of the top plate 1. The locking protrusion 9 formed on the tip of the sensing bar 7 is removably engaged with the locking hole 10 provided on the side of the upper end of the other clasp bar 5. In using the wife side end detection bar 7, the detection bar 7 is rotated around the base end 8 pivotally attached to the upper end of one of the clue bars 5, The locking protrusion 9 may be engaged with the locking hole 10 on the side of the upper end of the other clue bar 5, and when the sensing bar 7 is not used, the other The locking protrusion 9 inserted in the locking hole 10 on the side surface of the upper end of the clasp bar 5 is extracted, and about 270 ° as shown by the arrow in FIG. Since it suffices to fold and store the cue bar 5 along one of the clue bars 5, it is possible to quickly and easily attach and detach the wife end detection bar 7.

  Further, on the side surface of the lower end of one of the clue bars 5, the locking protrusion 9 is detachably engaged when the wife side end detection bar 7 is rotated and folded along the one clasp bar 5. Since the locking hole 11 is provided, the sensing bar 7 can be fixed in the folded storage position, and the sensing bar 7 does not rub when the portable work table T is packed or transported. It is valid.

  Further, when this wife side end sensing bar 7 is used, the locking projection 9 is always in the locking hole 10 provided on the side surface of the upper end of the other clasp bar 5 by the elastic biasing force of the bar body 7o. When the sensing bar 7 is folded, the latching projection 9 is also applied to the side surface of the lower end of the one clasp bar 5 by the elastic biasing force of the bar body 7o. Since it is urged to always engage with the provided locking hole 11, there is a special locking means for holding the locking projection 9 engaged with the locking hole 10 during use and folding storage. It becomes unnecessary, and the structure can be simplified.

T portable work table 1 top plate 2 leg 2a pedestal 2b pedestrian cross 5 handle bar 7 wife side end sensing bar 7o bar body 8 base end of wife side end sensing bar 9 wife side end sensing bar Locking protrusion 10 at the tip 10 Locking hole 11 Locking hole

Claims (4)

  In a portable work bench that has ladder-shaped legs at both ends of the top plate and has clue bars erected at the four corners of the top plate, the top plate is placed between the top ends of the two clasp bars facing the short direction of the top plate. When bridging the wife side edge detection bar to inform that it is the wife side edge of the board, the base end of the wife side edge detection bar is placed on one of the two-handed clasp bars facing the short side of the top board. The sensing bar is pivotally attached to the upper end of the cue bar so that the sensing bar rotates along a plane perpendicular to the longitudinal direction of the top plate, and a locking projection formed on the tip of the wife side end sensing bar is provided. A portable work table that is detachably engaged with a locking hole provided on the side surface of the upper end of the other clue bar.   The locking protrusion in which the locking protrusion is removably engaged when the wife side end detection bar is rotated and folded along the one holding bar on the side surface of the lower end of the one holding bar. The portable workbench according to claim 1, wherein a hole is provided.   The locking protrusion of the wife side end detection bar is urged so as to be always engaged with the locking hole provided on the side of the upper end of the other clasp bar by the elastic force of the bar main body. Item 2. The portable workbench according to Item 1.   The locking protrusion of the wife side end detection bar is urged so as to be always engaged with the locking hole provided on the side of the upper end of the one clasp bar by the elastic force of the bar body. Item 3. The portable work table according to Item 2.

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