JPH0716329Y2 - Auxiliary table folding device - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention can fold an auxiliary table vertically to the side of a table leg such as a work table or a counter table when not in use, and when in use. , Unfold horizontally,
The present invention relates to a folding device for an auxiliary top plate that can be connected to and supported by a fixed top plate.

[Conventional technology]

An example of a folding device for the auxiliary top plate as described above is disclosed in Japanese Utility Model Laid-Open No. 54-104903. This one has a pair of arms extending from both sides of the auxiliary top plate, each having a long hole oriented in the longitudinal direction, and each long hole oriented in the left-right direction pivotally supported on the lower surface of the fixed top plate. It can be folded by engaging the shaft and pulling the auxiliary top plate toward you, and with the auxiliary top plate horizontal, push both arms toward the fixed top plate, and the protrusion provided on the upper end of the arm. By engaging with the locking hole formed on the lower surface of the fixed top plate, it is possible to hold the auxiliary top plate in a use state in which it is flush with the fixed top plate.

[Problems to be solved by the device]

The conventional device as described above has the following problems.

As a stopper structure, not only special processing and construction such as drilling a locking hole on the top plate side are required, but also if the auxiliary top plate is pulled strongly, the projection will come out of the locking hole. Therefore, with the equipment, luggage, etc. placed on the auxiliary top plate, the child accidentally pulls the auxiliary top plate due to mischief, and the auxiliary top plate is folded and the device etc. falls. It is dangerous and lacks safety.In addition, the projections that come out of the locking holes come into strong contact with the lower surface of the top plate, which causes an unpleasant scratching noise. There is a problem that sliding inward and outward is not smooth.

The present invention aims to solve the above problems.

[Means for Solving the Problems]

The above-mentioned problem is to attach a stopper shaft to each of the front and rear sides of the lower surface of the fixed top plate in the table body, and to attach a sliding rod having an outward locking piece to the lower side of the inner end of the auxiliary top plate. And the inner end of the auxiliary top plate so as to project inward from the auxiliary top plate so that the sliding rods are mounted on the stopper shaft and slide inward of the fixed top plate. When the sliding rods are slid outwardly, the outward locking pieces are locked to the stopper shaft, and further, at the important points of the sliding rods, When moving together with the sliding rod on the stopper shaft inward, and when moving the sliding rod inward as much as possible, it rotates downward and the free end contacts the inner surface of the stopper shaft. The problem is solved by pivotally attaching the locking piece which is made possible.

[Action]

When the auxiliary top plate is turned upward to make it horizontal and then pushed toward the fixed top plate, the locking piece that moves together with the sliding rod turns downward when passing the stopper shaft, and its free end is Automatically locks to the inner surface of the stopper shaft.

To fold the auxiliary top plate, rotate the locking piece upward and then pull the auxiliary top plate outward. At the pulling limit, the inner end of the sliding rod is locked to the stopper shaft, and the auxiliary top plate can be rotated downward and folded.

〔Example〕

(1) is a table body in which a fixed top plate (6) is mounted on a leg portion (5) in which left and right side plates (2) are connected by lateral members (3) and (4). ) Side edges and front and rear edges slightly project from the side surface and front and rear surface of the leg portion (5), respectively.

On the lower surface of the side end portion of the fixed top plate (6) protruding from the side plate (2) of the leg portion (5), a bearing fitting of a reverse side view (having a length substantially the same as the depth of the fixed top plate (6) ( 7) is stuck. The stepped shaft (8) with the large diameter portion serving as the stopper shaft outward is concentric with the outer surface (front and rear surfaces of the table body (1)) of both side pieces (7a) of the bearing fitting (7). It has been fixed.

Reference numeral (9) is an auxiliary top plate, which has the same depth as the fixed top plate (6), and sliding rods (10) (10) having an outwardly-shaped cross section in side view are provided at the front and rear ends of the lower surface thereof with the bearing fittings (7). ) Is fixed with a space slightly larger than the length.

Each sliding rod (10) has a height slightly smaller than the distance between the small diameter portion of the stepped shaft (8) and the lower surface of the fixed top plate (6), and the inner end lower side thereof. Has a semi-circular hole (11) of substantially the same diameter as the small diameter portion of the stepped shaft (8), and an outward locking portion (12) connected to the semicircular hole (11).

A base portion of a locking piece (13) is pivotally supported by a shaft pin (14) on an outer surface of a main part of each sliding rod (10) (which will be described later).

The locking piece (13) can be rotated in a direction in which its free end approaches the auxiliary top plate (9), but in the opposite direction, the base part is the upper piece (10a) of the sliding rod (10). The shape of the base is determined so that it cannot rotate more than a certain amount (which will also be described later) by abutting and locking the lower surface of the base.

The locking piece (13) has a habit of turning in such a direction that the free end of the locking piece (13) moves away from the auxiliary top plate (9) by its own weight or by a spring (not shown).

The free end of the locking piece (13) is on the same plane as the large-diameter portion of the stepped shaft (8), and is the base from the free end of the lower edge of the one-stop piece (13) when horizontal. The stepped shaft (8) in the direction of
The receiving piece (15) is formed integrally with the large-diameter portion of which the base portion is inclined upward inward.

Then, when pushing the auxiliary top plate (9) inwardly and abutting it on the side edge of the fixed top plate (6), a member that goes under the fixed top plate (6) together with the sliding rod (10) The receiving piece (15) of the stop piece (13) slides on the upper surface of the large-diameter portion (8a) of the stepped shaft (8) to completely bring the auxiliary top plate (9) into close contact with the fixed top plate (6). When this is done, the receiving piece (15) of the locking piece (13) becomes the stepped shaft (8).
So that the free end of the locking piece (13) abuts the inner surface of the large diameter portion (8a) of the stepped shaft (8).
The shape and size of each related member are defined.

Therefore, with the auxiliary top plate (9) horizontal, the sliding rod (1
When (0) is slid inward along the upper surface of the small diameter portion of the stepped shaft (8), the auxiliary top plate (9) comes into close contact with the fixed top plate (6) and at the same time, the locking piece (13 ) Rotates downward, its free edge contacts the inner surface of the large diameter portion (8a) of the stepped shaft (8), and the auxiliary top plate (9) is securely fixed and held.

To fold the auxiliary top plate (9), push up the receiving piece (15) with fingers or the like, and set the free end of the locking piece (13) to the stepped shaft (8).
The auxiliary top plate (9) is pulled outward while being removed above the large diameter part (8a).

Sliding rod (10) at the extension limit of the auxiliary top plate (9)
Since the semicircular hole (11) following the outward locking portion (12) of the table engages with the small diameter portion of the stepped shaft (8), the auxiliary top plate (9) can be rotated downward to be folded. .

[Effect of device]

According to the present invention, the following effects can be achieved.

(A) Since the mechanism for locking the auxiliary top plate in the unfolded state is composed of the locking piece pivotally attached to the sliding rod and the stopper shaft that originally serves as the rotation shaft when folding, It can be used in common and does not require any special processing or configuration such as newly forming a locking hole as in the above-described conventional example.

(B) In order to fold the auxiliary top plate, it is necessary to rotate the locking piece by hand and then pull the auxiliary top plate outward in two steps, and with the intention of folding the auxiliary table. Since the locking piece is operated, as in the conventional example, with the equipment, luggage, etc. placed on the auxiliary top plate, the child accidentally pulls the auxiliary top plate due to mischief by children or the like. ,
The auxiliary top plate is folded and it is safe without any danger of equipment falling, and once the locking piece is rotated upward,
Since the locking piece slides on the stopper shaft,
The auxiliary table is smoothly slid inward and outward, and no unpleasant scratching noise is generated unlike the conventional example.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a vertical sectional front view of the auxiliary top plate when the auxiliary top plate is unfolded, and FIG. 3 shows a state in which the auxiliary top plate is also pulled out for folding. FIG. 4 is a vertical sectional front view with a solid line, and an imaginary line showing a folding state and a folded state of the auxiliary top table. (1) ... table body, (2) ... side plate (3) (4) ... lateral member, (5) ... leg (6) ... fixed top plate, (7) ... bearing fitting (8 ) …… Stepped shaft (stopper shaft) (9) …… Auxiliary top plate, (10) …… Sliding rod (11) …… Semicircular hole, (12) …… Outward locking part (13) …… Locking piece, (14) …… Shaft pin (15) …… Receiving piece

Claims (3)

[Scope of utility model registration request] 1. Sliding rods having stopper shafts attached to front and rear sides of a lower surface of a fixed top plate of a table main body, and sliding rods provided with outward locking pieces on the lower side of inner end portions on the front and rear surfaces of an auxiliary top plate, respectively. The inner ends are fixed so that they overlap the front and rear stopper shafts and project inwardly from the auxiliary top plate, and the sliding rods are mounted on the stopper shafts and directed inside the fixed top plate. The sliding rods can be slid, and when the sliding rods are slid outwardly, the outward locking pieces are locked to the stopper shaft. , When the slider rod is moved inward with it on the stopper shaft, and the sliding rod is moved inward as much as possible, it rotates downward and the free end contacts the inner surface of the stopper shaft. A folding device for an auxiliary table in which a locking piece that can be contacted is pivotally attached. 2. The stopper shaft is a stepped shaft having a large diameter portion at its outer end, and the sliding rod is adapted to slide on the small diameter portion of the stepped shaft. 1) The folding device for an auxiliary table described in 1). 3. The locking piece can be rotated upward, but when it is rotated downward, a part of its base portion abuts on a horizontal upper piece of the sliding rod. By stopping
The folding device for an auxiliary table according to claim (1) or (2), wherein the free end of the auxiliary table is set so as not to be lower than the stopper shaft.