JPH09196039A - Member fixing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain fitting stability and reduce the number of bolts by providing a bolt passed through a through hole of a fitting member and engaged with a threaded hole of a fitted member so as to fix the fitting member to the fitted member, and forming a sharp protruding part around the through hole, on the side of facing the fitted member. SOLUTION: When a bolt 3 is passed through a through hole 2b of a bracket 2 and screwed into a threaded hole 1 of a recording head 1, a head 3a of the bolt 3 presses the bracket 2 to the recording head 1 so as to fix the contact faces la, 2a of the recording head 1 and bracket 2 in the contact state. At this time, a protruding part 2c of the bracket 2 bites into the softer contact face 1 of the recording head 1, made of aluminum, so as to be fixed. In spite of being fixed by a single bolt 3, the bracket 2 is stable without being rotated in relation to the recording head 1, and the number of bolts in use is reduced so as to attain cost reduction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a member fixing device having a structure in which a mounting member is fixed to a member to be mounted using bolts.

[0002]

2. Description of the Related Art Conventionally, it has been widely practiced to fix one member to another member using a bolt. For example,
In a recording apparatus, sheet metal mounting brackets (mounting members) are fixed by bolts on both sides of a line-type recording head (member to be mounted), and the whole is integrated. Is being incorporated into the body of. In this way, the mounted member (recording head)
When the mounting member (mounting metal fitting) is fixed with bolts, a plurality of bolts are used to securely fix the mounting member to the mounted member and prevent the mounting member from rotating.

[0003]

However, the use of a plurality of bolts increases the number of bolts, increases mounting work, and causes a cost increase.

In view of this, the present invention aims to reduce the number of bolts to be used while maintaining the stability of the mounting in a member fixing device having a structure in which the mounting member is mounted to the mounted member with bolts, thereby achieving cost reduction. And

[0005]

In order to achieve the above object, the present invention forms a sharp projection on the side of the mounting member facing the mounted member, and fixes the mounting member to the mounted member with a bolt. When doing so, the sharp protrusions bite into the attached member. With this configuration, when the mounting member is fixed to the mounted member with bolts, the sharp protrusions simultaneously bite into the mounted member, and rotation between the mounting member and the mounted member can be prevented. The mounting member can be fixed to the mounted member by the bolts without any hindrance, and the number of bolts used can be reduced to reduce the cost.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention relates to a mounted member having a screw hole, a mounting member having a through hole for passing a bolt which engages the screw hole, and a screw engaging member to the screw hole through the through hole. In a member fixing device comprising a bolt for fixing the mounting member to the mounted member by fitting, a sharp projection part of the mounting member around the through hole and on a side facing the mounted member. Is formed.

Here, a specific combination of the mounting member and the mounted member is arbitrary, but one example is a recording head and a mounting metal member mounted thereto. Further, the materials of the mounting member and the mounted member are not particularly limited, but it is preferable that the mounting member is made of a material harder than the mounted member. It is preferable to press and bend a part to form a sharp protrusion. The number and position of the sharp protrusions are arbitrary, but one at a symmetrical position with respect to the center of the through hole,
It is preferable to form two in total.

In the member fixing device having the above structure, the mounting member can be fixed to the mounted member by passing the bolt through the through hole of the mounting member and screwing the bolt into the screw hole of the mounted member.
Moreover, at that time, since the sharp projection of the mounting member bites into the mounted member, the mounting member is firmly fixed to the mounted member and does not rotate around the bolt.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a member fixing device according to an embodiment in which the present invention is applied to fixing a recording head and a mounting member. (A) is a schematic sectional view showing a state before assembly, (b) 1 is a schematic sectional view showing an assembled state, FIG. 2 is an embodiment thereof, and FIG.
(B) is a schematic front view seen in the direction of arrow AA, FIG. 3 shows a mounting member used in the embodiment, (a) is a schematic side view, (b) is a schematic front view, (c) is a BB arrow sectional drawing in (b). In the figure, reference numeral 1 denotes a member to be attached, which is a recording head in this embodiment. The recording head 1 is made of aluminum, and has a flat contact surface 1a near its end and an opening 1a formed in the contact surface 1a.
It is provided with one screw hole 1b. 2 is the recording head 1
In the present embodiment, an attachment member for attaching the recording head 1 to the main body of the recording apparatus is shown. The mounting bracket 2 is made of sheet metal and has a contact surface 2a for pressing against the contact surface 1a of the recording head 1.
And one through hole 2b provided at a position aligned with the screw hole 1a so as to open to the contact surface 2a thereof, and a sharp projection formed around the through hole 2b and on the side facing the recording head 1. And a section 2c. The sharp protrusion 2c is formed by pressing and bending a part of the metal plate, and the through hole 2
They are arranged symmetrically with the center of b in between. 3 is a bolt having a bolt head 3a.

In assembling the member fixing device having this structure, the bolt 3 is passed through the through hole 2b of the mounting member 2 and screwed into the screw hole 1a of the recording head 1. This makes bolt 3
Head 3a presses the mounting bracket 2 against the recording head 1, so that the recording head 1 and the mounting bracket 2 are in contact surfaces 1a and 2 respectively.
It is fixed in the state where a is abutted. At this time, the mounting bracket 2
The protrusion 2c formed on the bite bites into the contact surface 1a of the recording head 1 made of aluminum, which is softer than that, and is fixed in that state. Thus, the protrusion 2 of the mounting bracket 2
Since the c bites into the recording head 1 and is fixed, the mounting member 2 does not rotate with respect to the recording head 1 even though the mounting member 2 is fixed to the recording head 1 with the single bolt 3. Since it is stably fixed, the mounting bracket 2 can be mounted on the recording head 1 with no trouble by using a single bolt 3.

[0011]

As is apparent from the above description, according to the present invention, the side around the through hole formed in the mounting member for bolting the mounting member to the mounted member and facing the mounted member. By forming a sharp protrusion on the mounting member, when the mounting member is fixed to the mounted member with a bolt, the sharp protrusion can be cut into the mounted member. On the other hand, it is possible to prevent rotation around the bolts, and it is possible to fix the mounting member to the mounted member with a single bolt without hindrance, and it is possible to reduce the number of bolts used and reduce costs. have.

[Brief description of the drawings]

FIG. 1 shows a member fixing device according to an embodiment in which the present invention is applied to a recording head and a mounting bracket, and
Is a schematic sectional view showing a state before assembly, and (b) is a schematic sectional view showing an assembled state.

FIG. 2 shows the member fixing device of the embodiment shown in FIG.
(B) Schematic front view seen in the direction of arrow AA.

3A and 3B show a mounting bracket used in the embodiment shown in FIG. 1, where FIG. 3A is a schematic side view and FIG. 3B is a schematic front view.
(C) is a sectional view taken along the line BB in (b).

[Explanation of symbols]

 1 Recording head (attached member) 1b Bolt hole 2 Mounting bracket (attaching member) 2b Through hole 3c Projection part 3 Bolt 3a Bolt head

Claims (1)

[Claims] 1. A member to be mounted having a screw hole, a mounting member having a through hole for passing a bolt engaging with the screw hole, and the mounting by screwing the screw hole through the through hole. And a bolt for fixing the member to the mounted member, wherein the mounting member has a sharp projection formed around the through hole and on the side facing the mounted member. Member fixing device.