JP4951309B2 - Slat connector - Google Patents

Description

  The present invention relates to an improvement in shutter parts, and more particularly, to a slat connector that has a small number of parts, a simple structure, can be easily molded, and can reduce manufacturing costs.

  As is well known, in the medical field and the like, a hand cart is used to carry medicines to be distributed to each hospital room, medical instruments, and the like. By the way, recently, from the viewpoint of preventing leakage of personal information, a medical device that has an openable / closable shutter is used so that the name and medical condition of an inpatient cannot be detected from the cart load. ing.

  Conventionally, such a shutter has been made by using a horizontally long slat as a constituent member and connecting the plurality of slats up and down in sequence. In this slat type shutter, these connected slats are connected to each other. In order to prevent the hook from being detached, there is disclosed a stopper provided with a connector on the side (see, for example, Patent Document 1).

However, such a conventional slat connector is troublesome to assemble because of the large number of parts. In addition, there was a possibility that parts could be lost, and there was a complaint that it was very unusable.
Japanese Utility Model Publication No. 7-4778 (2nd page, FIG. 1)

  The present invention has been made in view of the above-described problems in the conventional slat connector, and the object is to have a small number of parts, a simple structure, and molding. Another object of the present invention is to provide a slat connector that is easy and can reduce the manufacturing cost.

  Means employed by the present inventor for solving the above-described problems will be described with reference to the accompanying drawings.

That is, according to the present invention, in the shutter structure constructed by sequentially connecting the connecting pieces 21 and 22 provided at the upper end portion and the lower end portion of the slat 2 with each other, the connecting slats are connected to each other. By being attached to the side end surfaces of the slats 2 · 2 ···, the slats 2 · 2 ··· are prevented from being detached and guided to the guide rails 3 provided on the side of the slats 2 '. A connector 1 made of synthetic resin,
The plurality of insertion protrusions 11, 11 are integrally formed in a rosary shape in a state of being alternately connected to the guide pieces 12, 12, and the insertion protrusions 11, 11, protrude in the same direction, The part is connected to the side edge of the guide piece 12, and the connecting part 13 of these two members is formed into a thin and flexible shape
The front ends of the insertion protrusions 11, 11... Can be inserted into the insertion holes 21 a, 21 a, which are formed at the side ends of the connecting pieces 21, 21, of the slat 2.
A technical means is adopted in which the guide pieces 12, 12... Are slidable along the guide rail 3.

  In addition, in order to solve the above-described problem, the present invention forms a retaining projection 11a for the insertion hole 21a of the slat 2 on at least a part of the peripheral surface of the fitting projection 11 in addition to the above means as necessary. Adopted technical means.

  Furthermore, in order to solve the above-mentioned problem, the present invention integrates the hard resin layer 12a into the guide rail sliding contact portion at the edge of the guide piece 12 by two-color molding in addition to the above means as necessary. A technical means for improving the wear resistance of the guide rail 3 was adopted.

  Furthermore, in order to solve the above-mentioned problems, the present invention can be fitted to a hollow portion 23 formed on the side end surface of the slat 2 on one surface of the guide piece 12 in addition to the above means as necessary. The technical means of forming a simple fitting convex part 12b was adopted.

  Furthermore, in order to solve the above-described problems, the present invention employs technical means for producing the elastic material of the connector 1 from a thermoplastic elastomer in addition to the above means as necessary.

According to the present invention, the connecting pieces provided at the upper end portion and the lower end portion of the slats are engaged with each other, so that the shutter structure is configured to be sequentially connected up and down to abut the side end surfaces of the connected slats. It is a synthetic resin connector that prevents the slats from being detached and is guided to a guide rail provided on the side of the slats by being attached to the slats,
The plurality of insertion protrusions are integrally formed in a bead shape in a state of being alternately connected to the guide pieces, and these insertion protrusions protrude in the same direction, while each base end portion is connected to a side edge portion of the guide pieces, The connecting part of both members is molded into a flexible thin wall,
Each tip of the insertion protrusion can be inserted into each insertion hole 21a, 21a,... Formed at the side end of the connecting piece of the slat, and the guide piece can slide along the guide rail. is there.

  Therefore, according to the coupler of the present invention, the shutter structure of a cart or the like can be simplified with a reduced number of parts, can be easily molded, and the manufacturing cost can be reduced. There is a high price.

  BEST MODE FOR CARRYING OUT THE INVENTION The best mode for carrying out the present invention will be described in more detail with reference to the drawings specifically shown as follows.

“First Embodiment”
A first embodiment of the present invention will be described with reference to FIGS. In the figure, what is indicated by reference numeral 1 is a connector made of synthetic resin, and the configuration of the connector 1 will be described in detail later. Further, what is indicated by reference numeral 2 is a slat, and this slat 2 is a member constituting a shutter, and is made by extrusion molding of a plastic material (for example, vinyl chloride, polypropylene, etc.), and has an upper end portion. And lower end portions are provided with connecting pieces 21 and 22, respectively, which can be sequentially connected up and down by engaging with each other. In this embodiment, the connecting pieces 21 and 22 of the slat 2 are constituted by a hook-like hook member and a cylindrical member having an insertion hole 21a, and are connected in a suspended state to constitute a shutter plate.

  Moreover, what is indicated by reference numeral 3 is a guide rail, and this guide rail 3 is a longitudinal member disposed on each of both inner side surfaces of the cart. In this embodiment, a rail member having a U-shaped cross section is employed.

  Thus, in the shutter structure configured as described above, the slats 2 · 2 ··· are attached / detached by being attached to the side end surfaces of the connected slats 2 ····. The present invention relates to a connector 1 that prevents and guides the guide rail 3 on the side of the slat 2.

  In configuring the connecting tool 1, first, a plurality of insertion protrusions 11, 11,... And guide pieces 12, 12,. At this time, the fitting protrusions 11 are projected in the same direction. Moreover, each base end part is connected with the side edge part of the guide piece 12, and the connection part 13 of these both members is shape | molded in the thin-walled shape which can be bent (refer FIGS. 1-3).

  In the present embodiment, the material used for the connector 1 is a polyacetal or polyamide excellent in wear resistance, a styrenic thermoplastic elastomer excellent in flexibility, a polyester thermoplastic elastomer, a polyolefin thermoplastic elastomer, A polyamide-based thermoplastic elastomer having excellent wear resistance and flexibility can be employed.

  And each front-end | tip part of the said insertion protrusion 11 * 11 ... is shown in FIG.4 and FIG.5 in each insertion hole 21a * 21a ... formed in the side edge of the connection piece 21 * 21 ... of the said slat 2. As shown in FIG. It can be inserted (see FIGS. 6 and 7). At this time, as shown in FIG. 8, a retaining projection 11 a for the insertion hole 21 a of the slat 2 can be formed on at least a part of the peripheral surface of the fitting projection 11, and the connector 1 is securely fastened. Can do.

  After that, the guide pieces 12, 12... Of the connector 1 can be slid along the guide rail 3. The guide rails 3 and 3 have at least a curved portion, and when the guide piece 12 moves along the guide piece 12, the joint portion 13 is bent at the curved portion to be smoothly moved. (See FIG. 9). By doing so, it is possible to open and close up and down with the shutter configured as described above (see FIG. 10).

“Second Embodiment”
Next, a second embodiment of the present invention will be described with reference to FIG. In the present embodiment, as shown in FIG. 11, the hard resin layer 12 a is integrated into the guide rail sliding contact portion at the edge portion of the guide piece 12 by two-color molding to improve the wear resistance with respect to the guide rail 3. it can. As this hard resin, it is preferable to use polyacetal and polyamide excellent in wear resistance. Moreover, as this manufacturing method, it is preferable to use a two-color injection molding machine.

  The present invention is generally configured as described above. However, the present invention is not limited to the illustrated embodiment, and various modifications can be made within the description of “Claims”. For example, FIG. As shown in FIG. 13, in order to connect a plurality of couplers 1,..., A socket portion 14 is provided at the end portion, and the insertion protrusion 11 at the other end can be inserted into the socket portion 14. By doing so, the length can be adjusted when changing the quantity of the slats 2, 2... According to the size of the cart.

  Also, the fitting protrusions 11, 11... And the guide pieces 12, 12. Furthermore, as shown in FIG. 14, a fitting convex portion 12 b that can be fitted into the hollow portion 22 formed on the side end surface of the slat 2 can be formed on one surface of the guide piece 12. It is also possible to fix the tool 1 more reliably, and any of these belong to the technical scope of the present invention.

It is a top view showing the coupling tool of 1st Embodiment of this invention. It is a perspective view showing the coupling tool of 1st Embodiment of this invention. It is a perspective view showing the coupling tool of 1st Embodiment of this invention. It is a side view showing the connection state of the slat of 1st Embodiment of this invention. It is a perspective view showing the connection state of the slat of 1st Embodiment of this invention. It is a side view showing the state which connected the connecting tool and slat of 1st Embodiment of this invention. It is a perspective view showing the state which connected the connecting tool and slat of 1st Embodiment of this invention. It is a perspective view showing the modification of the coupling tool of 1st Embodiment of this invention. It is explanatory side view showing the use condition of a 1st embodiment of the present invention. It is a whole perspective view showing the cart of 1st Embodiment of this invention. It is a perspective view showing the coupling tool of 2nd Embodiment of this invention. It is a perspective view showing the modification of the coupling tool of embodiment of this invention. It is a side view showing the modification of the coupling tool of embodiment of this invention. It is a perspective view showing the modification of the coupling tool of embodiment of this invention.

Explanation of symbols

1 connection tool
11 Insertion protrusion
11a retaining protrusion
12 Guide pieces
12a Hard resin layer
12b Mating convex part
13 Connecting part
14 Socket part 2 Slat
21 connecting piece
21a Insertion hole
22 Connecting piece
23 Hollow part 3 Guide rail

Claims (5)

In the shutter structure constructed by sequentially connecting the connecting pieces 21 and 22 provided at the upper end and the lower end of the slat 2 to each other, the side of the connected slats 2. A synthetic resin coupler that prevents the slats 2, 2... From being detached and attached to the guide rails 3 provided on the side of the slats 2 by being attached to the end surface while being in contact with the end surface. 1 and
The plurality of insertion protrusions 11, 11 are integrally formed in a rosary shape in a state of being alternately connected to the guide pieces 12, 12, and the insertion protrusions 11, 11, protrude in the same direction, The part is connected to the side edge part of the guide piece 12, and the connecting part 13 of these two members is molded into a thin and flexible shape,
The tip portions of the insertion protrusions 11, 11... Can be inserted into the insertion holes 21 a, 21 a, which are formed at the side ends of the connecting pieces 21, 21, of the slat 2.
The slat coupler, characterized in that the guide pieces 12, 12... Are slidable along the guide rail 3.   The slat connector according to claim 1, wherein a retaining projection (11a) for the insertion hole (21a) of the slat (2) is formed on at least a part of the peripheral surface of the fitting projection (11).   The hard resin layer (12a) is integrated by two-color molding at the guide rail sliding contact portion at the edge of the guide piece (12), and the wear resistance to the guide rail (3) is improved. Slat coupler.   The fitting convex part 12b which can be fitted in the hollow part 23 shape | molded by the side end surface of the slat 2 is shape | molded by the one surface in the guide piece 12 in any one of Claims 1-3 characterized by the above-mentioned. The slat connector according to one.   The slat connector according to any one of claims 1 to 4, wherein the elastic material of the connector 1 is made of a thermoplastic elastomer.

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