JP3081235B2 - Clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a clamp for sandwiching a tube or a bag between two opposing plate-like members to hermetically seal the internal space of a held object in a fluid-tight manner.

<Prior Art> A clamp as shown in FIGS. 5 and 6 is known as a means for temporarily sealing the internal space of a bag body in a fluid-tight manner.

Fig. 5 shows an outer frame (21) having a concave surface with a semicircular cross section and an inner frame (22) having a convex surface fitted into the concave surface of the outer frame (21). On the convex surface of the frame (22), three ridges (23), (24), (2
5) is provided, which mainly seals the bag with a central ridge (25) and two ridges (23), (2
It is designed to fit with the outer frame in 4).

6 shows a frame (31) having a concave surface with a semicircular cross section, and a round rod (32) formed of an elastic body such as rubber fitted into the concave surface of the frame (31). ), And the bag is sealed between the frame (31) and the round bar (32).

<Problems to be Solved by the Invention> However, a clamp as shown in FIG. 5 is usually made of a flexible resin such as polyvinyl chloride or polypropylene, and therefore, when subjected to a sterilization treatment in an autoclave or the like. Clamps such as those shown in Fig. 6 are usually made of metal, etc., and have the disadvantage that they are easy to loosen, deform, and come off. It has the disadvantage that it is difficult to perform.

The present invention has been made in view of the above circumstances, and has as its object to provide a clamp which is inexpensive and easy to operate.

It is another object of the present invention to provide a clamp that is unlikely to be loosened or deformed even when autoclave sterilization is performed while holding the held object.

<Means for Solving the Problems> In order to solve the above problems, the present invention provides a connecting means which is located at one end of a clamp and which detachably connects two plate members, and a pressing means which is parallel to each other in the longitudinal direction. A holding portion composed of two plate members having protrusions, detachable locking means for maintaining the holding portion in a state of holding an object to be held, and a holding member which is located at the other end of the clamp and is gripped by a finger or the like; And a grip portion for applying a force for clamping the object to be clamped to the clamping portion.

In addition, in order to reduce deformation due to heat, a connecting means protruding in the longitudinal direction of the first plate member is used as a connecting means.
A shaft supported between the arms of the book and a hook-shaped connecting branch protruding in the longitudinal direction of the second plate-like member, the tip of the connecting branch being an end of the first plate-like member. A shaft that is supported so as to surround the shaft after passing through a through hole formed between the shaft, the two arms and the shaft, and of such connecting means, the connecting branch is the second branch. After extending in the longitudinal direction of the plate-like member, a configuration is adopted in which the plate-like member is bent at substantially the right angle in the pressing ridge direction at the base of the hook.

<Operation> Since the clamp of the present invention is configured as described above, the object to be clamped is placed on the clamping portion on the second plate-like member side, and
After the two plate members are pivotally supported with a shaft and a hook through the connecting branch on the second plate member side through the through hole on the plate member side, the first plate member is covered from above the sandwiched object, As shown in FIG. 4, when the gripping portion of the plate-like member is pressed with a finger, the pressing ridges (12), (13), (14) of the plate-like members (1), (2) and the plate The to-be-held object (19) is firmly held between the shaped members (1) and (2). At this time, both plate members are locked by the locking means.

<Example> Next, an example of the present invention will be described with reference to the drawings.

FIG. 1 is a side view showing a first embodiment of the clamp of the present invention, FIG. 2 is a plan view of the clamp of FIG. 1, FIG. 3 is an exploded perspective view of the clamp of FIG. FIG. 4 is a view showing a state where a bag is held by the clamp of the present invention.

As shown in FIGS. 1 to 3, the clamp of the present invention
It comprises a detachable connecting means (3), a holding part (4), a detachable locking means (5), and a holding part (6), each part comprising two plate-like parts constituting the holding part (4). Member or first
It is provided on the plate-like member (1) and the second plate-like member (2) or on an extension thereof, and cooperates to function the clamp.

 Hereinafter, each part will be described in detail.

The connecting means detachably connects the two plate-like members (1) and (2), and is disposed at one end of the clamp.
There are various types, such as one connected by a pivot as shown in the figure and one connected by two hooks, but an axis consisting of a shaft (8) and a hook-shaped connecting branch (9) as shown in the figure. A support type is preferred. The shaft (8) is supported between two arms (7) protruding in the longitudinal direction of the first plate-shaped member (1), while the connecting branch (9) is connected to the second plate-shaped member (9). It protrudes in the longitudinal direction of the member (2), and the tip of the connecting branch (9) is the first
After passing through the through hole (10) formed between the end of the plate-like member (1) and the two arms (7), it is supported so as to surround the axis (8). Has become. The connecting branch (9) is preferably extended in the longitudinal direction of the second plate-like member (2), and then substantially at the base of the hook (11) in the direction of the pressing ridge (14) (inside). It is bent at right angles. By making the bending direction perpendicular to the second plate-like member (2), the connecting means (3), especially the connecting branch (9) can be heated at a high temperature during sterilization.
This minimizes the occurrence of loosening and detachment due to the deformation of the.

The holding portion (4) is a portion that holds an object to be held, such as a tube or a bag, and hermetically seals an internal space thereof in an airtight or liquid tight manner.
Pressing ridges parallel to each other in the longitudinal direction are formed on the inner surfaces of the two plate members (1) and (2).
Although the number of pressing ridges is not particularly limited, it is usually 1 to 3 for each plate-like member, and as shown in FIG.
One pressing ridge (14) of the second plate-like member (2) is disposed between the two pressing ridges (12) and (13) of the plate-like member (1) so as to mesh with each other. (In other words, a configuration in which two pressing protrusions are provided on the second plate-like member (1) and one pressing protrusion is provided on the first plate-like member (1) is also preferable). Such a simple configuration enables reliable and strong sealing.
The sealing is performed between the inner surface of the first plate-like member (1) and the pressing protrusions (14) of the second plate-like member (2), and between the pressing protrusions (12) of the first plate-like member (1). ), (13) and the inner surface of the second plate-shaped member (2).

The locking means (5) is provided between the two plate-like members (1) and (2) connected by the connecting means (3) (more precisely, the holding portion (4)).
And (2) maintaining the object to be held in a sandwiched state, which is usually disposed between the holding section (4) and the grip section (6) and is detachable. As the detachable locking means (5), various types such as a type comprising a hole (15) and an engaging projection (16) as shown in the figure and a screw type are conceivable. An engagement type comprising (15) and an engagement projection (16) is inexpensive and common. In the figure, the end of the first plate-shaped member (1) is bent inwardly and the inner surface position is equal to the pressing surface of the pressing ridges (12) and (13). The first plate-shaped member (1) before being bent is bent in a square shape so as to be parallel to the first plate-shaped member (1), and holes (16) through which the engaging projections (16) of the second plate-shaped member (2) are inserted. 15) is provided. The engaging projection (16) is provided with a step (17) that catches on the edge of the hole (15).

The gripper (6) is disposed at the other end of the clamp, that is, at the end opposite to the coupling means (3), and is used to grip the gripper with a finger or the like to apply a force to grip the object to be gripped to the gripper (4). And are formed to be curved outwardly of the plate members (1) and (2), respectively, as shown in the figure. Then, in order to prevent the finger from slipping, two to five ribs (18) may be formed in a direction perpendicular to the longitudinal direction.

<Effects of the Invention> As is apparent from the above description, the clamp of the present invention can be provided at low cost and is easy to operate. Furthermore, since the connecting branch of the connecting means is bent inward at a right angle at the base of the hook, loosening, detachment, deformation, etc. of the connecting portion during sterilization at a high temperature by an autoclave or the like are unlikely to occur. It is suitable as a clamp for a so-called two-liquid mixing type infusion bag or the like that needs to be sterilized in an autoclave in a state partitioned into the above rooms.

[Brief description of the drawings]

1 is a side view showing an embodiment of the clamp of the present invention, FIG. 2 is a plan view of the clamp of FIG. 1, FIG. 3 is an exploded perspective view of the clamp of FIG. 1, and FIG. It is a figure which shows the state which clamped the bag body with the clamp of this invention. FIGS. 5 and 6 are views showing a conventional clamp of the same type. <Explanation of Main References> 1: First plate-like member, 2: Second plate-like member 3: Coupling unit, 4: Nipping unit 5: Locking unit, 6: Holding unit 8: Shaft, 9: Coupling Branches 12, 13, 14: Pressing ridge

Claims (2)

(57) [Claims] 1. A clamp for holding a tube or a bag between two opposing plate members so as to fluid-tightly seal an internal space of an object to be clamped, and having two inner surfaces parallel to each other in a longitudinal direction. A first plate-shaped member having two pressing ridges, and a second plate having one pressing ridge arranged to mesh between two pressing ridges of the first plate-shaped member A holding portion made of a plate-like member, coupling means located at one end of a clamp for detachably connecting the first plate-like member and the second plate-like member, and holding the held portion as the holding portion. Detachable locking means for maintaining the clamped state, and a gripper located at the other end of the clamp, for gripping with a finger or the like to apply a force for clamping the object to be clamped to the clamper. A shaft supported between two arms projecting in the longitudinal direction of the first plate-shaped member, and a second plate; A hook-shaped connecting branch protruding in the longitudinal direction of the member,
The distal end of the connecting branch passes through a through hole formed between the end of the first plate-shaped member, the two arms, and the shaft, and is pivotally supported so as to surround the shaft. And clamp. 2. The clamp according to claim 1, wherein the connecting branch extends in the longitudinal direction of the second plate-shaped member, and then bends at a base portion of the hook at a substantially right angle in the direction of the pressing ridge.