JP2542823Y2 - Edge member mounting structure on desk top - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure of a synthetic resin edge member provided on a side surface of a desk top plate.

[0002]

2. Description of the Related Art When providing longitudinal edge members made of synthetic resin on both left and right members of a desk top plate, the present applicant first disclosed in Japanese Utility Model Application Laid-Open No. 2-12749 that the side members were arranged in the longitudinal direction. Engaging holes are formed at appropriate intervals, and a plurality of engaging claws are provided on the inner surface of the edge member to be engaged with the engaging hole while being shifted in the front direction of the desk, while the inner surface front end of the edge member is provided. A protruding stop piece fitted into the insertion hole formed in the front end of the side member, and a detent piece fitted into the detent hole formed in the side member is protruded from the rear end of the edge member. It has been proposed that the installed edge member be regulated so as not to be displaced back and forth with respect to the side member.

[0003]

The front-rear spacing between the front end abutment piece of the edge member and the detent piece at the rear end of the edge member is usually room temperature, and the front end insertion hole and the detent are formed in the metal side member. It is set to be equal to the distance between the holes. When the synthetic resin edge member is attached to the desk top plate side member in this way, during storage of this desk in a warehouse,
Or, during transportation, the temperature may rise to 40-50 ° C. Incidentally, for example, the thermal expansion coefficient (/ ° C.) of ABS resin is about 6 to 13 × 10 ⁻⁵ , while the thermal expansion coefficient (/ ° C.) of iron is 11.7 × 10 ^−6. Since the coefficient is much larger than that of metal, when the temperature rises as described above, the dimension in the front-rear direction of the synthetic resin edge member increases significantly, but the front and rear ends of the edge member are inserted into the insertion hole in the metal side member. Since the position of the detent hole is regulated by the abutment piece and the detent piece, the front and rear portions of the edge member bend away from the outer surface of the side member. When carrying the desk with the left and right sides of the desk in such a state, the curved edge member is caught, and an excessive force is easily applied to the edge member, so that the edge member and the engaging claws are damaged. was there.

[0004] The present invention solves the above technical problem and provides an edge member mounting structure in which the edge member does not separate from the outer surface of the side member regardless of a temperature change.

[0005]

In order to achieve this object, the present invention relates to a front and rear side made of a synthetic resin along a side member made of a thin metal plate, which constitutes one side surface of a desk plate formed of a thin metal plate. In a tabletop having a longitudinal edge member detachably attached, one of the inner surface of the edge member and the side member is perforated at appropriate intervals in the longitudinal direction.
A plurality of engagement holes are provided, and each of the engagement holes is
One is a large-diameter insertion section, and the other communicating therewith is a small-diameter insertion section.
And the inner surface of the edge member.
Or the other of the side members has an insertion portion for the engagement hole.
A plurality of engaging claws configured to move from the first to the engaging portion so as to be undetachably engaged, and an insertion hole is formed in a front end portion or a rear end portion of the side member, and the front and rear direction of the side member is provided. In the middle part, a locking hole is drilled at an appropriate short distance from the insertion hole, and the inner surface of the edge member is locked with the insertion hole and the locking hole so as to be immovable in the front-rear direction. And a pair of front and rear positioning locking claws that protrude.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In the drawings, reference numeral 1 denotes a one-sleeve type steel desk, and a desk top plate 2 has a rear panel provided with a panel for shielding or the like. 3 can be provided detachably. The table top plate 2 includes left and right side members 4 and 4 made of a thin metal plate having a U-shaped cross section and a plurality of reinforcing cross beam members (see FIG. ) Is formed into a substantially hollow shape by stretching an upper surface plate 6 made of a thin steel sheet on which a decorative plate 5 such as a melamen resin is stuck on the upper surface thereof. The front edge of the top plate 6 is folded back toward the lower surface of the front cross beam member, while the rear edge of the top plate 6 is folded back along the rear surface of the rear cross beam member.

The side plates 4a of the left and right side members 4 include:
A plurality of engagement holes 7 are formed in the middle part in the longitudinal direction at appropriate intervals along the longitudinal direction. Each of the engagement holes 7 is
Configuration and the insertion portion 7a of the large-diameter rectangular shape in a side view of the desk, the engaging portion 7b whose diameter of the upper and lower narrow communicating with the front end
Have been . Further, at the front end and the rear end of the side plate 4a, there are formed transversely U-shaped insertion holes 8, 9 communicating with the inner surfaces of the folded portions 6a, 6b of the upper surface plate 6, respectively. Further, a rectangular locking hole 10 as viewed from the side is formed at a distance from the front end insertion hole 8 in the rear direction by a short dimension (L).

Reference numeral 11 designates an L-shaped bracket in side view for mounting on the left and right side surfaces of the panel 3 to be erected, and is screwed together with a rear edge member 12 to be described later. Reference numeral 14 denotes a front and rear longitudinal front edge member made of a synthetic resin such as ABS resin. The front edge of the rear edge member 12 of the same material is detachably connected to the rear end of the front edge member 14.

As shown in FIGS. 7 and 8, the front edge member 14 has an inwardly U-shaped cross section, and has an upper edge portion 14a on the side of the top plate 6 and the decorative plate 5. A rib 15 that can be inserted into the gap protrudes longitudinally. Symbol 16, 1
Reference numeral 7 denotes a pair of front and rear positioning locking claws, each of which projects inward at a front end of the front edge member 14 and a distance L behind the front edge member 14, and the front positioning locking claw 16 has a rectangular cross-section. The front positioning hole 8 can be inserted and locked, and the rear positioning locking claw 17 has a U-shape in a side view and can be inserted and locked in the locking hole 10. The stop claws 16 and 17 can regulate the front edge member 14 so that the front / rear position of the front edge member 14 with respect to the side plate 4a does not shift.

Reference numeral 18 denotes an engagement claw protruding from the inner surface of the front edge member 14 at a predetermined interval in the longitudinal direction thereof, and a head 18a of each engagement claw 18 is provided in each of the engagement holes 7 in the side plate 4a. Can be fitted into the rectangular large-diameter insertion portion 7a,
8 is moved forward with respect to the engagement hole 7, the head 1
8a can be undetachably engaged with the narrow , small-diameter engaging portion 7b (see FIG. 7).

At the rear end of the front edge member 14, a stepped thin portion 19 is projected rearward, and a rectangular-shaped connection hole 20 in a side view is formed in the thin portion 19 at the rear end inner surface of the front edge member 14. It is formed so as to communicate with. The rear edge member 12
As shown in FIG. 2, the upper and lower side edges 12a, 12b
And straddles the horizontal piece 11a of the bracket 11,
The vertical piece 11b of the bracket 11 is inserted through the notch 21 provided at the rear part of the upper edge 12a, and the cylindrical leg 27 protruding from the inner surface of the board 12d is bored in the horizontal piece 11a of the bracket 11. A screw 23 is fixed to the side plate 4a of the side member via the hole 22.

The tongue piece 24 at the tip of the rear edge member 12
Is inserted into the connection hole 20 of the thin portion 19 of the edge member 14, and is connected while the thin portion 19 is pressed. Further, a clearance allowance (e) is provided between the rear end of the front edge member 14 and the front end of the rear edge member 12 when the front edge member 14 extends in the front-rear longitudinal direction due to a temperature rise. I do.

The substrate 12d of the rear edge member 12
A key groove-like engaging groove 25 which is open rearward is formed on the outer surface along the left-right direction, and a cover 26 is inserted from the rear end to be mounted so that the mounting screw 23 is hidden. I have. At the rear end of the rear edge member 12, a positioning claw (not shown) is provided to protrude inward, is inserted into the rear end insertion hole 9, and is in contact with the rear end folded portion 6 b of the upper surface plate 6.

In the above configuration, the left and right edge members 1
After inserting the engaging claw 18 on the inner surface of 4 into the insertion portion 7a of the side plate 4a in the engaging hole 7, the front edge member 14 is shifted toward the front of the desk. The locking claw 1 provided at the front end of the front edge member 14 while being fitted to the engagement portion 7 b and unable to be pulled outward.
6 fits into the insertion hole 8 at the front end of the side plate 4a, and the positioning locking claw 17 behind it fits into the locking hole 10 of the side plate 4a, thereby restricting the front and rear movement.

The front-rear dimension (L) (70 mm in the embodiment) of the pair of front and rear positioning locking claws 16 and 17 is extremely shorter than the total length of the front edge member 14 (540 mm in the embodiment). Therefore, even if the front edge member 14 elongates due to a temperature rise, the elongation of the member having the dimension (L) is extremely small, and the front edge member 14 in the meantime becomes the side member 4.
The degree of bending deformation from outside to outside is extremely small. Also,
As the temperature rises, even if there is an extension displacement of the front edge member 14 from the rear positioning locking claw 17 to the rear end, the front edge member 14 may be displaced in the front-rear direction between the engagement hole 7 and the engagement claw 18. As a result, the inconvenience that the front edge member 14 itself is curved and deformed is eliminated.

On the other hand, since the thin portion 19 is pressed by the rear edge member 12 at the rear end of each of the left and right front edge members 14, the edge member 14 is reliably prevented from peeling off from the rear end. In addition, since the mounting screw 23 of the rear edge member 12 is covered with the detachable cover 26, the appearance does not deteriorate. When the panel 3 is attached to the rear end of the tabletop 2 as in the embodiment, the mounting bracket 11 can be covered by using the rear edge member 12, and a member for covering the bracket 11 is used. There is an advantage that there is no need to provide a separate. In this case, if the rear edge member 12 is vertically symmetrical, if the panel 3 is not mounted, the left and right rear edge members 12 are replaced with each other and the notch 21 is mounted downward so that the appearance is not deteriorated. .

The present invention is also applicable to the case where the rear edge member is formed longitudinally in the front and rear direction and a pair of front and rear positioning locking claws are provided at a position appropriately short from the rear end. Curve deformation of the edge member due to the difference can be prevented.

[0018]

[Operation and effect of the invention] The invention is configured as described above , and includes the inner surface of the edge member or the side member.
Either one is drilled at appropriate intervals in the longitudinal direction
A plurality of engaging holes, and each of the engaging holes has a front-rear direction.
One of them is a large-diameter insertion part, and the other communicating therewith is
It is formed so as to be a small diameter engaging portion, and the inside of the edge member is formed.
The other of the surface and the side member has the engagement hole inserted therein.
Move from the entrance to the engagement so that
Because it is provided with a plurality of engaging claws that are configured, thermal expansion
The total amount of expansion and contraction of the edge member and side member in the front-rear direction
The amount of expansion and contraction between adjacent engaging claws before and after
Is not so large that all the engaging claws and the engaging holes
It does not move, and even if each engaging claw moves,
It does not come off completely from the engagement part. Further, even if there is a position restriction by the positioning locking claw provided at the front end or the rear end of the edge member and the positioning locking claw provided at a position appropriately short from the positioning claw, the pair of positioning claw due to the temperature rise is not affected. Since the amount of extension of the edge member between the positioning locking claws is extremely small, the deformation due to the extension is less noticeable than when positioning is performed at the front and rear ends of the long edge member.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk.

FIG. 2 is a perspective view of a main part.

FIG. 3 is a side view of a side member.

FIG. 4 is an enlarged side view of a front end portion of the desk top plate.

FIG. 5 is a partially cutaway inside view of the front edge member.

FIG. 6 is a cross-sectional view showing an attached state of a front edge member.

7 is a sectional view taken along the line VII-VII in FIG. 6;

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG. 6;

FIG. 9 is a cross-sectional view showing a connection state of a front edge member and a rear edge member.

[Explanation of symbols]

 Reference Signs List 1 desk 2 desk top plate 3 panel 4 side member 4a side plate 5 decorative plate 6 top plate 7 engagement hole 8,9 insertion hole 10 locking hole 12 rear edge member 14 all edge members 16,17 positioning locking claw 18 Dowel 18a Head 19 Thin part 20 Connection hole 23 Screw 24 Tongue piece

Claims (1)

(57) [Scope of request for utility model registration] 1. A desk having a front and rear longitudinal edge member made of a synthetic resin detachably provided along a side member made of a thin metal plate constituting one side surface of a desk top plate formed of a thin metal plate. In the top plate, either one of the inner surface of the edge member and the side member is perforated at appropriate intervals in the longitudinal direction.
A plurality of engagement holes, and each of the engagement holes is
One is a large-diameter insertion section, and the other communicating therewith is a small insertion section.
The inner surface of the edge member is formed so as to be a diameter engagement portion.
Alternatively, the other of the side members has the engagement hole inserted therein.
A plurality of engaging claws configured to be moved from the portion to the engaging portion so as to be undetachably engaged, while an insertion hole is formed in a front end portion or a rear end portion of the side member, and the front and rear sides of the side member are provided. In the middle part of the direction, a locking hole is drilled at an appropriate short distance from the insertion hole, and the inner surface of the edge member is locked by the insertion hole and the locking hole and cannot be moved in the front-rear direction. A mounting structure for an edge member on a tabletop, wherein a pair of front and rear positioning locking claws are projected.