JPH0515217Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the structure of a protective edge device for a top plate of a table or desk.

[Conventional technology and issues to be solved]

Conventionally, as a protective edge device for protecting the front edge of a top plate of an office desk, table, etc., a protruding step part that protrudes forward is formed at a lower position of the edge frame of the top plate. The end part of the edge frame including the part is covered with an edge member made of an integral skin form with an inverted L-shaped cross section.
It is disclosed in Publication No. 36087.

According to this prior art, a screw penetrating upward from the lower surface of the protruding step is simply fastened to the upper part of the edge member, and the lower part of the edge member is not engaged with the protruding step. This, combined with the fact that the edge member has an integral skin form, which is relatively weak, means that when you place your hand near the lower end of this edge member and lift the desk, the lower part of the edge member becomes attached to the frame. There were disadvantages in that it was easy to come off and was easy to break at the base of the edge member, which had an inverted L-shaped cross section.

The present invention attempts to solve the problems that could not be solved by the prior art by devising the mounting location of the protective edge member that integrally covers the protruding step part of the edge frame body and the upper side of the protruding step part.

[Means to solve the problem]

Therefore, the present invention forms a protruding step part that protrudes forward in the lower part of the edge frame body of a top plate of a desk, etc., and connects the protruding step part and the vertical side plate of the edge frame body above the protruding step part. In a protective edge device consisting of a fixed member made of hard synthetic resin that is arranged so as to cover the outer surface of the fixed member, the outer surface of the fixed member is covered with a protective edge member made of soft synthetic resin. The locking piece protruding in this direction is locked with the locking protrusion protruding forward from the vertical side plate, while the inner surface of the lower portion of the fixing member is provided with an engaging portion for the lower surface or front surface of the protruding step portion. The configuration is as follows.

[Functions and effects of the idea]

According to this configuration, both the upper and lower portions of the fixing member can be locked and engaged with the edge frame of the protruding step portion and can be firmly fixed.

That is, the inward locking piece located near the top of the fixing portion projects forward from the vertical side plate located above the protruding step in the edge frame body, that is, from the vertical side plate located further back from the front surface of the protruding step. While being locked to the locking protrusion, the lower part of the fixing member is located on the front or lower surface of the protruding step located below the locking part and at a position that is biased forward from the locking part. Since the positions are engaged, the following effects are achieved.

Both the upper and lower parts of the fixing member can be fixed to the edge frame body,
The fixing strength is significantly increased compared to fixing in one place,
Hard to come off.

Since the fixing member of the present invention is disposed over and covers the protruding stepped portion of the edge frame body and the vertical side plate above the protruding step portion, the side cross-sectional shape thereof generally has a substantially inverted L-shape. Since the upper and lower parts of the fixing member having such a cross-sectional shape are different from each other in the height position and the position in the front and rear depth direction, the upper and lower parts of the fixing member can be locked and locked, respectively, depending on the discrepancy. Fixing by engagement makes sense to ensure fixation.

Moreover, since the lower position of the fixing member covers at least the front surface of the protruding step, the fixing member protrudes in front of the front surface, so that when lifting the desk, external force is easily applied from below to the protruding portion. Therefore, since that portion, that is, the lower position of the fixing member, is engaged with and fixed to the protruding step, there is no fear of damage to the fixing member.

〔Example〕

Next, to explain an embodiment, reference numeral 2 denotes a top plate of a desk 1 in an office, and in this embodiment, a front edge frame 3, left and right side frame bodies, and a rear frame body of the top plate 2 are each provided with separate protection. A border device is provided.

As shown in FIG. 2, the front edge frame 3 includes a vertical side plate 8 in which the front end of the upper plate 5 of the top plate 2 on which a synthetic resin surface plate 4 is stretched or attached is bent downward. A protruding step portion 9 is formed by bending forward from the lower end of the vertical side plate 8 to have a U-shaped cross section.

Incidentally, reference numeral 6 denotes a reinforcing member that is connected and fixed (spot welded) between the protruding step 9 and the upper plate 5 in order to prevent the protruding step 9 from deforming and to improve its strength.

The protruding step portion 9 may be bent and formed by a plate different from the upper plate 5, but may be formed by forming a front-facing upper plate 9a following the lower end of the vertical side plate 8 and bending downward from the front end of the upper plate 9a. It consists of a front plate 9b and a lower plate 9c bent backward from the lower end of the front plate 9b (see FIGS. 2 and 3).

The vertical side plate 8 has cut-and-raised locking protrusions 10 at appropriate intervals along its longitudinal direction, and the front plate 9b at the protruding step 9 has screws 11 for fixing (to be described later). It has a hole 12.

Reference numeral 13 denotes a left and right longitudinal fixing member made of hard synthetic resin in the protective edge device. The outer surface of the fixing member 13 is covered with a protective edge member 14 made of soft synthetic resin.

The form of engagement and fixation between the fixing member 13 and the front edge frame 3 is shown in FIGS. 3 to 8, and in short,
A locking piece protruding inwardly from an upper position of the fixing member is locked with a locking protrusion protruding forward from the vertical side plate, while a locking piece on the inner surface of the lower part of the fixing member is provided at the protruding step portion. It has a configuration in which an engaging portion is provided on the lower surface or the front surface.

In the first embodiment shown in FIG. 3, the fixing member 13 is formed from the vertical side plate 8 to the protruding step part 9 so as to substantially follow the surface thereof, and is made of a soft synthetic resin that covers the side plate 8 and has a horizontally L-shaped cross section. A plurality of buffer protrusions 1 that are in constant contact with the inner surface of the longitudinal protective edge member 14 or that can be brought into contact by elastic deformation of the protective edge member 14
5 integrally with the fixing member 13 facing upward and outward.
are formed continuously or intermittently in the longitudinal direction, and a grooved locking piece 16 that fits into the locking protrusion 10 of the vertical side plate 8 is fixed inward at a position near the top of the fixing member 13. It protrudes continuously or intermittently in the longitudinal direction of the member.

This locking piece 16 can make the fixing member 13 immobile up and down.

In addition, at the upper part of the locking piece 16, the upper end of the protective edge member 14 is integrally and bendably connected to the upper end of the protective edge member 14 through a so-called bonding point 17, and the material is still in a softened state (half-formed) during extrusion molding. molten state)
At this time, the fixing member 13 and the protective edge member 14 can be connected to each other at the bonding point 17, or they can be attached with adhesive after extrusion molding. 18 is disengaged from the engagement groove 19 at the lower end of the fixing part 13, the protective edge member 14 made of soft synthetic resin is turned outward, etc., centering on the bonding point 17, as shown by the two-dot chain line in FIG. It is flexible and allows the surface of the fixing member 13 to be exposed at locations other than the bonding location 17.

In this way, with the lower end position of the fixing member 13 exposed, it is engaged with the front plate 9b of the protruding step portion 9 by fastening the screws 11, and then the protective edge member 14 is covered and engaged. The covering operation is completed by the engagement of the groove 19 and the protruding claw portion 18.

Although not shown, one or more upward buffer protrusions 1 of the buffer protrusions 15 may be used as appropriate.
5 has an engaging groove formed near its upper end, while a protrusion that fits into the engaging groove is formed on the inner surface of the protective edge member 14, and the protective edge member 14 is made to engage with each other. It may be configured so that it cannot be removed.

In the second embodiment shown in FIG. 4, the fixing member is covered with an outer fixing member 20 covered with a protective edge member 14 made of soft synthetic resin, and an inner fixing member 20 is provided along the surface of the protruding step portion 9 to the vertical side plate 8. The fixing member 21 is separated into two members, and a locking piece 22 with a groove that fits into the locking protrusion 10 on the vertical side plate 8 is placed at a position near the top of the inner fixing member 21 so that the locking piece 22 faces inward along the length of the fixing member. It protrudes continuously or intermittently in the direction.

Further, the upper part of the locking piece 22 and the upper end of the protective edge member 14 are connected to the same adhesive point 2 as in the first embodiment.
3 (see the two-dot chain line in FIG. 4), and at the same time, the external fixing member 20 and the protective edge member 14 can be bonded together, and the external fixing member 21 and the protective edge member 14 may be bonded later.

Reference numeral 24 denotes a screw for engaging the lower position of the internal fixing member 21 with the front plate 9b of the protruding step portion 9, and the screw is continuous in the longitudinal direction of the fixing member from the lower position of the internal fixing member 21. Alternatively, a pair of upper and lower locking claws 25 that intermittently project forward and a pair of upper and lower locking claws that continuously or intermittently project inward in the longitudinal direction of the fixing member from a lower position of the external fixing member 20 The claws 26 are for preventing both the inner and outer fixing members 20, 21 from coming off after the screws 24 have been tightened.

In the third embodiment shown in FIG. 5, an inverted L-shaped locking protrusion 27 is cut and raised on the vertical side plate 8 of the front edge frame 3 to protrude forward, and a fixing member 28 made of hard synthetic resin is cut and raised. Protective edge member 1 made of soft synthetic resin on the outer surface
4 is integrally adhered (welded) during extrusion molding or is adhered afterwards, and the locking protrusion 27 is located near the upper part of the fixing member 28 having a substantially U-shaped cross section.
A locking piece 29 that can be stopped at the same time is continuously or intermittently protruded in the longitudinal direction of the fixing member, and a contact piece 30 that can come into contact with the upper surface plate 9a of the protruding step portion 9 is also integrally provided. Furthermore, an engaging claw 31 provided at the tip of the lower end surface of the fixing member 28 is attached to the lower surface plate 9 of the protruding step portion 9.
The lower surface plate 9c of the stepped portion 9 protrudes from the lower surface side of the fixing member 28 while being removably engaged with the engagement groove 32 of c.
The screws 33 are screwed upward into the screws.

In this case, the engagement position by the screw 33 is shifted forward by an appropriate dimension from the engagement position with the locking protrusion 27, and therefore, the depth dimension of the U-shaped fixing member 28 is large. Also make sure that the front edge frame 3
can be engaged and fixed.

Note that the downward protrusion 3 on the upper edge of the protective edge member 14
4 and the locking piece 29 of the fixing member 28
The locking protrusion 27 is held between the two.

FIG. 6 shows the locking protrusion 3 of the vertical side plate 8 of the front edge frame 3.
In addition to 5, there is an engaging protrusion 36 on the front plate 9b of the protruding step 9.
The fixing member 37 of the fourth embodiment shown in FIG. 7 is engaged in the vicinity of both upper and lower ends with the front edge frame 3 having such a configuration.

That is, the locking protrusion 35 of the vertical side plate 8 is held and locked from above and below at the upper position of the fixing member 37 made of hard synthetic resin covered with the protective edge member 14 made of soft synthetic resin. A pair of upper and lower locking pieces 38
a, 38b are integrally protruded, and the fixing member 3
At a lower position of 7, a pair of upper and lower engaging portions 39a and 39b that are sandwiched from above and below by the engaging protrusion 36 at the front plate 9b of the protruding step portion 9 and engaged are continuously provided in the longitudinal direction of the fixing member. Or there are intermittent protrusions.
Note that the reference numeral 40 is a contact piece that can come into contact with the upper surface plate 9a of the protruding step portion 9.

In this embodiment, the fixing member 37, the upper and lower locking pieces 38a, 38b, and the engaging portions 39a, 3
Due to the elastic deformation of the 9b itself, it can be securely fitted and fixed onto each of the locking protrusions 35 and the engaging protrusions 36.

In the fifth embodiment shown in FIG. 8, the upper and lower sides of a fixing member 41 made of hard synthetic resin are covered with protective edge members 14 made of soft synthetic resin (which may be integrally bonded during extrusion molding or bonded afterwards). Both ends are surrounded by protrusions 42 and 43 in a spiral shape.

The fixing member 41 has a cross section L at a position near the top.
A letter-shaped locking piece 44 and an inwardly directed engaging piece 45 are provided integrally with each other and protrude continuously or intermittently in the longitudinal direction of the fixing member.

Therefore, as shown in the figure, by forcibly pushing the fixing member 41 toward the front edge frame 3, the locking protrusion 35 is clamped and locked by the protrusion 42 and the locking piece 44, The protrusion 43 and the engagement piece 45 sandwich and engage the engagement protrusion 36 .

In each of the above embodiments, the vertical side plates 8 may be not vertical but may be inclined, and the upper surface plate 9a of the protruding step portion 9 may be substantially horizontal or inclined. Needless to say.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the desk, Fig. 2 is a perspective view of the front edge frame, Fig. 3 is a sectional view of the first embodiment shown in Fig. 1, and Fig. 4 is a cross-sectional view of the second embodiment. 5 is a sectional view of the third embodiment, FIG. 6 is a perspective view of another embodiment of the front edge frame, FIG. 7 is a sectional view of the fourth embodiment,
FIG. 8 is a sectional view of the fifth embodiment. 1...Desk, 2...Top plate, 3...Front edge frame, 5
...Top plate, 6...Reinforcement member, 8...Vertical side plate, 9...
...Protruding step part, 9a...Top plate, 9b...Front plate,
9c... Bottom plate, 10, 27, 35... Locking protrusion, 11, 24, 33... Screw, 13, 20, 2
1, 28, 37, 41... Fixed member, 14... Protective edge member, 17, 23... Adhesive location, 16, 2
2, 29, 44...Locking piece, 38a, 38b...
Locking portion, 25, 26...Latching claw, 39a, 39b
...Engagement portion, 45...Engagement piece.

Claims (1)

[Scope of utility model registration request] A protruding stepped portion protruding forward at a position near the bottom of the edge frame of a top plate of a desk, etc. is formed, and the projecting step is arranged so as to cover the vertical side plate of the edge frame above the protruding step. In a protective edge device consisting of a fixing member made of hard synthetic resin, the outer surface of the fixing member is covered with a protective edge member made of soft synthetic resin, and a locking member protrudes inward from a position near the top of the fixing member. The piece is locked to a locking protrusion protruding forward from the vertical side plate, and an engaging portion for the lower surface or front surface of the protruding step portion is provided on the inner surface of the lower portion of the fixing member. A protective edge device for the top of desks, etc.