JP2974746B2 - Seat and seat arrangement structure - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a simple and robust seat arrangement structure.

[Conventional technology]

It is well known that an arrangement of seats is constituted by a horizontal cradle supported by supporting legs and having a seat surface screwed to an upper surface. One of the problems associated with this type of seat arrangement is the fixing of the support legs to the horizontal cradle. Generally, rather complex means are used, including a large number of screws and welds that make the arrangement unattractive.

Another problem with these designs is a mechanism for securing the seat to the cradle itself. The seats are typically manufactured in a single casting or moulding, and the seats must incorporate reinforcement to support the weight experienced during use.

[Configuration of the invention]

In order to solve the above-mentioned problem, the present invention provides a seat arrangement structure having a highly rigid horizontal cradle to which a seat surface and an optional auxiliary table are fixedly supported by supporting legs, The clamp assembly is fixed to the pedestal by a clamp assembly composed of two semi-clamps complementary to each other, and the outer shape of the clamp assembly entirely matches the outer shape of the pedestal, and the gripping state with respect to the pedestal is adjusted. An extension extending as a tail member of each of the semi-clamps is provided in parallel with each other, and a third extension is provided in parallel with at least one extension of the semi-clamps.
The two extended portions and the auxiliary member are formed such that the overall outer shape matches the inner shape of the upper end of the leg portion having a tubular shape, and the two extended portions are provided. And the auxiliary member is fitted inside the leg,
Further, there is provided a means for guiding the semi-clamp to the operating position to center the semi-clamp, and a screw for adjusting the position of the semi-clamp with respect to the inner peripheral surface of the tubular leg, whereby the semi-clamp is provided. The clamp is fixed at the operating position.

The extension of the semi-clamp and the auxiliary member are secured by pins which can be easily inserted into corresponding holes in the adjacent part, thereby fixing the semi-clamp in the proper operating position and securing the tubular leg. It guides the movement of the upper end with respect to the inner peripheral surface.

The auxiliary member provided with the extension of the semi-clamp is fixed by a screw screwed into a screw hole, and the screw moves freely in a hole provided in one extension of the adjacent semi-clamp. That is supported by the other extension and is located in an opposing opening at the end of the leg, the head of the screw being accessible by a conventional screwdriver or the like. Can be.

One of the semi-clamps has a threaded projection that is threaded along the length of the inner surface and has a threaded projection that crosses a hole provided in the pedestal. The semi-clamp has a hole into which a screw is inserted to penetrate through the pedestal and screw to the threaded projection to fix the semi-clamp to the pedestal.

The pedestal is tubular and has an end member attached to at least one end of the end of the pedestal, the end member having a bent extension located on a side of the adjacent seating surface. The extension is fitted to the end of the pedestal and fixed by screws and bolts.

It consists of two similar parts which make up all the seating and the backrest, this part having a rear part which respectively fits the front part and the upper part of the said pedestal, by means of screws and bolts on said pedestal. Positioning is fixed.

The seat and the back of the backrest are flat and inclined.
The pedestal has a rectangular cross section and is positioned so as to be inclined in the lateral direction. The inclined backrest is positioned and fixed on the wide surface of the cradle.

〔Example〕

As is clear from the figures, the structure for constructing the seats in a row comprises a tubular pedestal 1 having a rectangular cross section, the pedestal having a lower end 3 formed by a screw 4 and a base 5. And is supported by a tubular leg 2 screwed to it.

The joining of the tubular legs 2 to the cradle 1 is realized by semi-clamps (clamp assemblies) 6, 7, which are completed in two pieces (that is, complement each other). The semi-clamp has a "C" shape to match the outer shape of the cradle.
The semi-clamp 6 has a convex protrusion 8 formed with a screw portion on the inner surface side, while the semi-clamp 7 has a hole 9 formed therein. The screw 10 passes through the hole and the pedestal 1 and is screwed into the screw portion of the projection 8. The projections 8, the holes 9 and the screws 10 constitute a means for changing the gripping state with respect to the receiving table 1. In this way, the semi-clamp is fixed to the receiving table 1.

The semi-clamps 6, 7 are provided with extended tracks or tail members (extensions) 11, 12, which can be matched with each other. These are operating states (operating positions where the semi-clamps 6 and 7 grip the receiving table 1)
When they are located at the same position, they are completed by a member (auxiliary member) 13 adjacent to the extension 12. The shape of the three juxtaposed members matches the internal contour of the upper end of the leg 2. That is, the inner edge is the three members 11, 12, 13
Matches. The tail member 11 is provided with a rod (pin) 14 that can be fitted into a hole 15 formed in the tail member 12. on the other hand,
The tail member 12 is provided with a rod (pin) 16 that can be fitted into a hole 17 formed in the member 13. The projections and holes hold the members 12 and 13 when the members 12 and 13 are moved in and out in a process to be described later, and fix the members in the operating state. These holes 15, 17
The rods 14 and 16 constitute means for guiding and positioning the semi-clamps 6 and 7 in an operation state (operation position).

The member 13 is fixed by two screws 18 screwed into the screw holes. The screw can freely pass through the hole 19 of the tail member 12 and can abut on the tail member 11. The screw head is located in an opposite opening 20 provided in the leg 2 which can be accessed by a normal tool or the like.

When the screw 18 is tightened, the members 11 and 13 expand with respect to the inner surface of the leg 2, so that the semi-clamps 6 and 7 are completely joined to the upper end of said leg. Further, the semi-clamp can be disassembled without difficulty only by loosening the screw 18.

The seating surface is composed of two similar members 21 constituting an actual seating surface and a backrest, such as a plate-like bucket having a punched small hole.
And 22. These members have rear portions that are sloped to form a major surface,
Screws 25 and bolts 26 or other similar fixing means are positioned and fixed to both the front and top surfaces of the horn.

The side or end member 27 is fitted to one of both ends of the cradle 1. These members have bent extensions 28 for fitting to the ends of the pedestal, and are fixed by screws 29. Auxiliary tables secured to one of the ends of the cradle can be added to all using conventional joining techniques.

From all the above descriptions, the tail member 1 with the auxiliary member 13
Leg 2 using semi-clamps 6, 7 having 1, 12
It can be seen that the connection to the cradle 1 is very simple and at the same time robust. Furthermore, no joints or screws or the like are visible, which provide an attractive and neat seating row compared to many other well-known structures where various screws and bolts and ugly joint traces are visible.

On the other hand, the arrangement of the seating surface is very simple because it is joined to the pedestal. Nevertheless, the seat is very strong and the rear portions 23, 24 can provide a large contact area for the user.

The seat and back are made from a single piece of material, such as a punched plate in the form of a shallow bucket. Also, they are self-supporting, i.e. they have sufficient rigidity at the sides of the member, so that no additional reinforcement is required and a special joint for joining the seat and back to the cradle. No mechanism is required.

The materials used to assemble the components of the chair, the dimensions and other additional auxiliary details of the same, as long as they do not affect the basic properties of the chair, are within the scope of the object of the invention. Outside.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an assembled state cut along a plane passing through a part of a leg supporting the cradle, and FIG. 2 is a state in which a rear part of a seating surface is joined to the cradle. FIG. 3 is a cross-sectional view taken along a plane parallel to FIG. 1, FIG. 3 is a cross-sectional view of the upper end of a leg showing an arrangement of extensions of a semi-clamp, and FIG. FIG. 3 is a front view showing a partial cross section showing one end. DESCRIPTION OF SYMBOLS 1 ... Cradle, 2 ... Leg, 5 ... Base, 6, 7 ... Semi-clamp, 8 ... Projection, 11, 12 ... Tail member, 13 ... Auxiliary member, 14, 16 ... Rod , 15, 17, 19 ... hole, 20 ... opening, 2
1… Seat surface, 22… Backrest, 23,24,25 …… Screw, 26…
... bolts, 27 ... end members, 28 ... extension parts.

Continued on the front page (56) References Japanese Utility Model Showa 58-31857 (JP, U) Japanese Utility Model Showa 50-28022 (JP, U) Japanese Utility Model 2-6844 (JP, Y2) Japanese Utility Model 4-44137 (JP) , Y2) (58) Field surveyed (Int. Cl. ⁶ , DB name) A47C 1/12-1/13 A47C 7/00

Claims (7)

(57) [Claims] 1. An arrangement structure of a seat having a rigid horizontal cradle supported by supporting legs and having a seat surface and an optional auxiliary table fixed thereto, wherein the legs (2) are complementary to each other. The clamp assembly is fixed to the pedestal (1) by a clamp assembly consisting of two semi-clamps (6, 7), and the outer shape of the clamp assembly is substantially the same as the outer shape of the pedestal. Extension means (11, 12) extending as a tail member of each of the semi-clamps are provided in parallel with each other, and at least one extension of the semi-clamps is provided in parallel with each other. A third auxiliary member (13) is provided, and the two extended portions and the auxiliary member are formed so that the overall outer shape matches the inner shape of the upper end of the tubular leg. , The two extensions and The auxiliary member is fitted into the inside of the leg, and furthermore, means for guiding and positioning the semi-clamp to the operating position, and adjusting the position of the semi-clamp with respect to the inner peripheral surface of the tubular leg. And an adjusting screw (18) for fixing said semi-clamp in the operating position. 2. An extension (11, 12) of the semi-clamp and an auxiliary member (13) are provided with corresponding holes (15, 1) in adjacent portions.
7) Secured by pins (14, 16) that can be easily inserted into
2. The seat arrangement according to claim 1, wherein the semi-clamp is fixed at an appropriate operating position and guides movement of the upper end of the tubular leg relative to the inner peripheral surface. 3. The auxiliary member (13) provided together with the extension (11, 12) of the semi-clamp is fixed by a screw (18) screwed into a screw hole, and the screw is connected to the adjacent semi-clamp. The clamp can move freely in the hole provided in one extension (12) and the other extension (1
1), wherein the head of the screw is disposed in an opposing opening (20) at the end of the leg to allow access by a conventional screwdriver or the like. The seat arrangement structure according to claim 1. 4. One of the semi-clamps is a threaded projection (8) threaded along the length of the inner surface, the threaded projection traversing a hole provided in the cradle (1). 8)
A screw (10) for fixing the semi-clamps to the pedestal (1) by penetrating the pedestal (1) and screwing the semi-clamps to the threaded protrusions.
2. The seat arrangement according to claim 1, further comprising a hole (9) into which the seat is inserted. 5. The pedestal (1) is tubular and has an end member (27) attached to at least one of the ends of the pedestal, the end member being a side portion of the adjacent seating surface. And an extended portion (28) bent at the same time, which is fitted to the end of the pedestal (1) and fixed by screws and bolts (29). The seat arrangement structure according to claim 1. 6. A similar seat comprising a real seat (21) and a backrest (22), the rear being adapted to respectively fit the front and the top of said cradle (1). (2
The seat according to claim 1, characterized in that the seat (3, 24) is positioned and fixed on the pedestal by a screw and a bolt (29). 7. The wide surface of the pedestal in a state where the seat surface (21) and the rear part (23, 24) of the backrest (22) are flat and inclined, and have a rectangular cross section and are inclined laterally. 7. The seat according to claim 6, wherein the seats are arranged in parallel at opposite upper positions.